JP4382225B2 - Photosensitive composition and photosensitive printing plate - Google Patents
Photosensitive composition and photosensitive printing plate Download PDFInfo
- Publication number
- JP4382225B2 JP4382225B2 JP36059299A JP36059299A JP4382225B2 JP 4382225 B2 JP4382225 B2 JP 4382225B2 JP 36059299 A JP36059299 A JP 36059299A JP 36059299 A JP36059299 A JP 36059299A JP 4382225 B2 JP4382225 B2 JP 4382225B2
- Authority
- JP
- Japan
- Prior art keywords
- group
- compound
- meth
- acid
- photosensitive composition
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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- 239000000203 mixture Substances 0.000 title claims description 37
- 238000007639 printing Methods 0.000 title claims description 22
- -1 phthalocyanine compound Chemical class 0.000 claims description 99
- 150000001875 compounds Chemical class 0.000 claims description 64
- 125000001424 substituent group Chemical group 0.000 claims description 29
- 125000000217 alkyl group Chemical group 0.000 claims description 22
- 229910052782 aluminium Inorganic materials 0.000 claims description 16
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 15
- 125000004435 hydrogen atom Chemical group [H]* 0.000 claims description 12
- 229910019142 PO4 Inorganic materials 0.000 claims description 9
- 238000010521 absorption reaction Methods 0.000 claims description 9
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 claims description 9
- 239000010452 phosphate Substances 0.000 claims description 8
- 239000003505 polymerization initiator Substances 0.000 claims description 7
- 125000003917 carbamoyl group Chemical group [H]N([H])C(*)=O 0.000 claims description 6
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 claims description 3
- 229910052796 boron Inorganic materials 0.000 claims description 3
- 229910052757 nitrogen Inorganic materials 0.000 claims description 2
- 125000004433 nitrogen atom Chemical group N* 0.000 claims description 2
- 238000011282 treatment Methods 0.000 description 35
- 229920005989 resin Polymers 0.000 description 25
- 239000011347 resin Substances 0.000 description 25
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 24
- 238000000576 coating method Methods 0.000 description 19
- 239000000975 dye Substances 0.000 description 19
- 239000004593 Epoxy Substances 0.000 description 18
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 18
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 18
- 239000011248 coating agent Substances 0.000 description 18
- 125000003118 aryl group Chemical group 0.000 description 17
- CERQOIWHTDAKMF-UHFFFAOYSA-N Methacrylic acid Chemical compound CC(=C)C(O)=O CERQOIWHTDAKMF-UHFFFAOYSA-N 0.000 description 16
- 238000000034 method Methods 0.000 description 16
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 14
- 239000002253 acid Substances 0.000 description 13
- 239000010410 layer Substances 0.000 description 13
- FBPFZTCFMRRESA-FSIIMWSLSA-N D-Glucitol Natural products OC[C@H](O)[C@H](O)[C@@H](O)[C@H](O)CO FBPFZTCFMRRESA-FSIIMWSLSA-N 0.000 description 11
- FBPFZTCFMRRESA-JGWLITMVSA-N D-glucitol Chemical compound OC[C@H](O)[C@@H](O)[C@H](O)[C@H](O)CO FBPFZTCFMRRESA-JGWLITMVSA-N 0.000 description 11
- 238000007788 roughening Methods 0.000 description 11
- 239000000600 sorbitol Substances 0.000 description 11
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 10
- 239000007864 aqueous solution Substances 0.000 description 10
- 239000000126 substance Substances 0.000 description 10
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 9
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 description 9
- LCGLNKUTAGEVQW-UHFFFAOYSA-N Dimethyl ether Chemical compound COC LCGLNKUTAGEVQW-UHFFFAOYSA-N 0.000 description 9
- LYCAIKOWRPUZTN-UHFFFAOYSA-N ethylene glycol Natural products OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 9
- 239000000178 monomer Substances 0.000 description 9
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 8
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 8
- DNIAPMSPPWPWGF-UHFFFAOYSA-N Propylene glycol Chemical compound CC(O)CO DNIAPMSPPWPWGF-UHFFFAOYSA-N 0.000 description 8
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 8
- 239000003513 alkali Substances 0.000 description 8
- 125000004432 carbon atom Chemical group C* 0.000 description 8
- 238000005238 degreasing Methods 0.000 description 8
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 8
- 239000000243 solution Substances 0.000 description 8
- BAPJBEWLBFYGME-UHFFFAOYSA-N acrylic acid methyl ester Natural products COC(=O)C=C BAPJBEWLBFYGME-UHFFFAOYSA-N 0.000 description 7
- MTHSVFCYNBDYFN-UHFFFAOYSA-N diethylene glycol Chemical compound OCCOCCO MTHSVFCYNBDYFN-UHFFFAOYSA-N 0.000 description 7
- 235000021317 phosphate Nutrition 0.000 description 7
- 238000005498 polishing Methods 0.000 description 7
- ZWEHNKRNPOVVGH-UHFFFAOYSA-N 2-Butanone Chemical compound CCC(C)=O ZWEHNKRNPOVVGH-UHFFFAOYSA-N 0.000 description 6
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 6
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 6
- VVQNEPGJFQJSBK-UHFFFAOYSA-N Methyl methacrylate Chemical compound COC(=O)C(C)=C VVQNEPGJFQJSBK-UHFFFAOYSA-N 0.000 description 6
- MUBZPKHOEPUJKR-UHFFFAOYSA-N Oxalic acid Chemical compound OC(=O)C(O)=O MUBZPKHOEPUJKR-UHFFFAOYSA-N 0.000 description 6
- 125000002723 alicyclic group Chemical group 0.000 description 6
- 125000001931 aliphatic group Chemical group 0.000 description 6
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 description 6
- 150000001732 carboxylic acid derivatives Chemical class 0.000 description 6
- JHIVVAPYMSGYDF-UHFFFAOYSA-N cyclohexanone Chemical compound O=C1CCCCC1 JHIVVAPYMSGYDF-UHFFFAOYSA-N 0.000 description 6
- 239000007788 liquid Substances 0.000 description 6
- 229910052751 metal Inorganic materials 0.000 description 6
- 239000002184 metal Substances 0.000 description 6
- IEQIEDJGQAUEQZ-UHFFFAOYSA-N phthalocyanine Chemical compound N1C(N=C2C3=CC=CC=C3C(N=C3C4=CC=CC=C4C(=N4)N3)=N2)=C(C=CC=C2)C2=C1N=C1C2=CC=CC=C2C4=N1 IEQIEDJGQAUEQZ-UHFFFAOYSA-N 0.000 description 6
- 235000011118 potassium hydroxide Nutrition 0.000 description 6
- 230000001681 protective effect Effects 0.000 description 6
- 150000003839 salts Chemical class 0.000 description 6
- 239000004065 semiconductor Substances 0.000 description 6
- 235000011121 sodium hydroxide Nutrition 0.000 description 6
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 description 5
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 5
- 238000002835 absorbance Methods 0.000 description 5
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 5
- 238000007743 anodising Methods 0.000 description 5
- IISBACLAFKSPIT-UHFFFAOYSA-N bisphenol A Chemical compound C=1C=C(O)C=CC=1C(C)(C)C1=CC=C(O)C=C1 IISBACLAFKSPIT-UHFFFAOYSA-N 0.000 description 5
- 229910052799 carbon Inorganic materials 0.000 description 5
- 238000011161 development Methods 0.000 description 5
- 239000008151 electrolyte solution Substances 0.000 description 5
- 150000002148 esters Chemical class 0.000 description 5
- 229920003145 methacrylic acid copolymer Polymers 0.000 description 5
- 229910017604 nitric acid Inorganic materials 0.000 description 5
- 239000003960 organic solvent Substances 0.000 description 5
- 230000035945 sensitivity Effects 0.000 description 5
- 239000004094 surface-active agent Substances 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- KUDUQBURMYMBIJ-UHFFFAOYSA-N 2-prop-2-enoyloxyethyl prop-2-enoate Chemical compound C=CC(=O)OCCOC(=O)C=C KUDUQBURMYMBIJ-UHFFFAOYSA-N 0.000 description 4
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 description 4
- 150000008065 acid anhydrides Chemical group 0.000 description 4
- 125000003545 alkoxy group Chemical group 0.000 description 4
- 150000001768 cations Chemical group 0.000 description 4
- KRVSOGSZCMJSLX-UHFFFAOYSA-L chromic acid Substances O[Cr](O)(=O)=O KRVSOGSZCMJSLX-UHFFFAOYSA-L 0.000 description 4
- 230000000052 comparative effect Effects 0.000 description 4
- AWJWCTOOIBYHON-UHFFFAOYSA-N furo[3,4-b]pyrazine-5,7-dione Chemical compound C1=CN=C2C(=O)OC(=O)C2=N1 AWJWCTOOIBYHON-UHFFFAOYSA-N 0.000 description 4
- 229910052736 halogen Inorganic materials 0.000 description 4
- 125000005843 halogen group Chemical group 0.000 description 4
- 125000000623 heterocyclic group Chemical group 0.000 description 4
- 229940117841 methacrylic acid copolymer Drugs 0.000 description 4
- 229920003986 novolac Polymers 0.000 description 4
- 230000000379 polymerizing effect Effects 0.000 description 4
- 239000002904 solvent Substances 0.000 description 4
- DURPTKYDGMDSBL-UHFFFAOYSA-N 1-butoxybutane Chemical compound CCCCOCCCC DURPTKYDGMDSBL-UHFFFAOYSA-N 0.000 description 3
- QTUVQQKHBMGYEH-UHFFFAOYSA-N 2-(trichloromethyl)-1,3,5-triazine Chemical compound ClC(Cl)(Cl)C1=NC=NC=N1 QTUVQQKHBMGYEH-UHFFFAOYSA-N 0.000 description 3
- GOXQRTZXKQZDDN-UHFFFAOYSA-N 2-Ethylhexyl acrylate Chemical compound CCCCC(CC)COC(=O)C=C GOXQRTZXKQZDDN-UHFFFAOYSA-N 0.000 description 3
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 3
- TXBCBTDQIULDIA-UHFFFAOYSA-N 2-[[3-hydroxy-2,2-bis(hydroxymethyl)propoxy]methyl]-2-(hydroxymethyl)propane-1,3-diol Chemical compound OCC(CO)(CO)COCC(CO)(CO)CO TXBCBTDQIULDIA-UHFFFAOYSA-N 0.000 description 3
- QTBSBXVTEAMEQO-UHFFFAOYSA-M Acetate Chemical compound CC([O-])=O QTBSBXVTEAMEQO-UHFFFAOYSA-M 0.000 description 3
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 3
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 3
- XDTMQSROBMDMFD-UHFFFAOYSA-N Cyclohexane Chemical compound C1CCCCC1 XDTMQSROBMDMFD-UHFFFAOYSA-N 0.000 description 3
- YMWUJEATGCHHMB-UHFFFAOYSA-N Dichloromethane Chemical compound ClCCl YMWUJEATGCHHMB-UHFFFAOYSA-N 0.000 description 3
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 description 3
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 3
- WMFOQBRAJBCJND-UHFFFAOYSA-M Lithium hydroxide Chemical compound [Li+].[OH-] WMFOQBRAJBCJND-UHFFFAOYSA-M 0.000 description 3
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 description 3
- 229920003171 Poly (ethylene oxide) Polymers 0.000 description 3
- 239000004115 Sodium Silicate Substances 0.000 description 3
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 3
- 239000007983 Tris buffer Substances 0.000 description 3
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 3
- 125000004183 alkoxy alkyl group Chemical group 0.000 description 3
- 230000008033 biological extinction Effects 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 3
- 125000000484 butyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 3
- 150000001735 carboxylic acids Chemical class 0.000 description 3
- 239000003795 chemical substances by application Substances 0.000 description 3
- 229920001577 copolymer Polymers 0.000 description 3
- LDHQCZJRKDOVOX-NSCUHMNNSA-N crotonic acid Chemical compound C\C=C\C(O)=O LDHQCZJRKDOVOX-NSCUHMNNSA-N 0.000 description 3
- SWXVUIWOUIDPGS-UHFFFAOYSA-N diacetone alcohol Chemical compound CC(=O)CC(C)(C)O SWXVUIWOUIDPGS-UHFFFAOYSA-N 0.000 description 3
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 3
- 238000011156 evaluation Methods 0.000 description 3
- 238000005227 gel permeation chromatography Methods 0.000 description 3
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 description 3
- 239000003999 initiator Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- LVHBHZANLOWSRM-UHFFFAOYSA-N methylenebutanedioic acid Natural products OC(=O)CC(=C)C(O)=O LVHBHZANLOWSRM-UHFFFAOYSA-N 0.000 description 3
- BKIMMITUMNQMOS-UHFFFAOYSA-N nonane Chemical compound CCCCCCCCC BKIMMITUMNQMOS-UHFFFAOYSA-N 0.000 description 3
- XNLICIUVMPYHGG-UHFFFAOYSA-N pentan-2-one Chemical compound CCCC(C)=O XNLICIUVMPYHGG-UHFFFAOYSA-N 0.000 description 3
- 150000002989 phenols Chemical class 0.000 description 3
- 229910052913 potassium silicate Inorganic materials 0.000 description 3
- 235000019353 potassium silicate Nutrition 0.000 description 3
- BDERNNFJNOPAEC-UHFFFAOYSA-N propan-1-ol Chemical compound CCCO BDERNNFJNOPAEC-UHFFFAOYSA-N 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 description 3
- 229910052911 sodium silicate Inorganic materials 0.000 description 3
- 238000005507 spraying Methods 0.000 description 3
- 238000003860 storage Methods 0.000 description 3
- 150000005846 sugar alcohols Polymers 0.000 description 3
- 230000003746 surface roughness Effects 0.000 description 3
- 238000003786 synthesis reaction Methods 0.000 description 3
- ANRHNWWPFJCPAZ-UHFFFAOYSA-M thionine Chemical compound [Cl-].C1=CC(N)=CC2=[S+]C3=CC(N)=CC=C3N=C21 ANRHNWWPFJCPAZ-UHFFFAOYSA-M 0.000 description 3
- YRHRIQCWCFGUEQ-UHFFFAOYSA-N thioxanthen-9-one Chemical compound C1=CC=C2C(=O)C3=CC=CC=C3SC2=C1 YRHRIQCWCFGUEQ-UHFFFAOYSA-N 0.000 description 3
- VZCYOOQTPOCHFL-UHFFFAOYSA-N trans-butenedioic acid Natural products OC(=O)C=CC(O)=O VZCYOOQTPOCHFL-UHFFFAOYSA-N 0.000 description 3
- LDHQCZJRKDOVOX-UHFFFAOYSA-N trans-crotonic acid Natural products CC=CC(O)=O LDHQCZJRKDOVOX-UHFFFAOYSA-N 0.000 description 3
- 229910052725 zinc Inorganic materials 0.000 description 3
- 239000011701 zinc Substances 0.000 description 3
- QEGNUYASOUJEHD-UHFFFAOYSA-N 1,1-dimethylcyclohexane Chemical compound CC1(C)CCCCC1 QEGNUYASOUJEHD-UHFFFAOYSA-N 0.000 description 2
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 description 2
- JAHNSTQSQJOJLO-UHFFFAOYSA-N 2-(3-fluorophenyl)-1h-imidazole Chemical compound FC1=CC=CC(C=2NC=CN=2)=C1 JAHNSTQSQJOJLO-UHFFFAOYSA-N 0.000 description 2
- INQDDHNZXOAFFD-UHFFFAOYSA-N 2-[2-(2-prop-2-enoyloxyethoxy)ethoxy]ethyl prop-2-enoate Chemical compound C=CC(=O)OCCOCCOCCOC(=O)C=C INQDDHNZXOAFFD-UHFFFAOYSA-N 0.000 description 2
- HCLJOFJIQIJXHS-UHFFFAOYSA-N 2-[2-[2-(2-prop-2-enoyloxyethoxy)ethoxy]ethoxy]ethyl prop-2-enoate Chemical compound C=CC(=O)OCCOCCOCCOCCOC(=O)C=C HCLJOFJIQIJXHS-UHFFFAOYSA-N 0.000 description 2
- POAOYUHQDCAZBD-UHFFFAOYSA-N 2-butoxyethanol Chemical compound CCCCOCCO POAOYUHQDCAZBD-UHFFFAOYSA-N 0.000 description 2
- JESXATFQYMPTNL-UHFFFAOYSA-N 2-ethenylphenol Chemical compound OC1=CC=CC=C1C=C JESXATFQYMPTNL-UHFFFAOYSA-N 0.000 description 2
- ZNQVEEAIQZEUHB-UHFFFAOYSA-N 2-ethoxyethanol Chemical compound CCOCCO ZNQVEEAIQZEUHB-UHFFFAOYSA-N 0.000 description 2
- ZPVFWPFBNIEHGJ-UHFFFAOYSA-N 2-octanone Chemical compound CCCCCCC(C)=O ZPVFWPFBNIEHGJ-UHFFFAOYSA-N 0.000 description 2
- QCDWFXQBSFUVSP-UHFFFAOYSA-N 2-phenoxyethanol Chemical compound OCCOC1=CC=CC=C1 QCDWFXQBSFUVSP-UHFFFAOYSA-N 0.000 description 2
- SEILKFZTLVMHRR-UHFFFAOYSA-N 2-phosphonooxyethyl 2-methylprop-2-enoate Chemical compound CC(=C)C(=O)OCCOP(O)(O)=O SEILKFZTLVMHRR-UHFFFAOYSA-N 0.000 description 2
- VVBLNCFGVYUYGU-UHFFFAOYSA-N 4,4'-Bis(dimethylamino)benzophenone Chemical compound C1=CC(N(C)C)=CC=C1C(=O)C1=CC=C(N(C)C)C=C1 VVBLNCFGVYUYGU-UHFFFAOYSA-N 0.000 description 2
- YEJRWHAVMIAJKC-UHFFFAOYSA-N 4-Butyrolactone Chemical compound O=C1CCCO1 YEJRWHAVMIAJKC-UHFFFAOYSA-N 0.000 description 2
- ROWKJAVDOGWPAT-UHFFFAOYSA-N Acetoin Chemical compound CC(O)C(C)=O ROWKJAVDOGWPAT-UHFFFAOYSA-N 0.000 description 2
- 229920000178 Acrylic resin Polymers 0.000 description 2
- 239000004925 Acrylic resin Substances 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 2
- HEDRZPFGACZZDS-UHFFFAOYSA-N Chloroform Chemical compound ClC(Cl)Cl HEDRZPFGACZZDS-UHFFFAOYSA-N 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- XTHFKEDIFFGKHM-UHFFFAOYSA-N Dimethoxyethane Chemical compound COCCOC XTHFKEDIFFGKHM-UHFFFAOYSA-N 0.000 description 2
- IAZDPXIOMUYVGZ-UHFFFAOYSA-N Dimethylsulphoxide Chemical compound CS(C)=O IAZDPXIOMUYVGZ-UHFFFAOYSA-N 0.000 description 2
- VZCYOOQTPOCHFL-OWOJBTEDSA-N Fumaric acid Chemical compound OC(=O)\C=C\C(O)=O VZCYOOQTPOCHFL-OWOJBTEDSA-N 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- LRHPLDYGYMQRHN-UHFFFAOYSA-N N-Butanol Chemical compound CCCCO LRHPLDYGYMQRHN-UHFFFAOYSA-N 0.000 description 2
- IMNFDUFMRHMDMM-UHFFFAOYSA-N N-Heptane Chemical compound CCCCCCC IMNFDUFMRHMDMM-UHFFFAOYSA-N 0.000 description 2
- AMQJEAYHLZJPGS-UHFFFAOYSA-N N-Pentanol Chemical compound CCCCCO AMQJEAYHLZJPGS-UHFFFAOYSA-N 0.000 description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 239000004372 Polyvinyl alcohol Substances 0.000 description 2
- 239000004111 Potassium silicate Substances 0.000 description 2
- OFOBLEOULBTSOW-UHFFFAOYSA-N Propanedioic acid Natural products OC(=O)CC(O)=O OFOBLEOULBTSOW-UHFFFAOYSA-N 0.000 description 2
- XBDQKXXYIPTUBI-UHFFFAOYSA-M Propionate Chemical compound CCC([O-])=O XBDQKXXYIPTUBI-UHFFFAOYSA-M 0.000 description 2
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 2
- UIIMBOGNXHQVGW-UHFFFAOYSA-M Sodium bicarbonate Chemical compound [Na+].OC([O-])=O UIIMBOGNXHQVGW-UHFFFAOYSA-M 0.000 description 2
- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical compound C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 description 2
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 2
- ZJCCRDAZUWHFQH-UHFFFAOYSA-N Trimethylolpropane Chemical compound CCC(CO)(CO)CO ZJCCRDAZUWHFQH-UHFFFAOYSA-N 0.000 description 2
- 150000001242 acetic acid derivatives Chemical class 0.000 description 2
- 230000002378 acidificating effect Effects 0.000 description 2
- 150000001298 alcohols Chemical class 0.000 description 2
- 125000003342 alkenyl group Chemical group 0.000 description 2
- 125000004453 alkoxycarbonyl group Chemical group 0.000 description 2
- 125000002877 alkyl aryl group Chemical group 0.000 description 2
- 125000000304 alkynyl group Chemical group 0.000 description 2
- XXROGKLTLUQVRX-UHFFFAOYSA-N allyl alcohol Chemical compound OCC=C XXROGKLTLUQVRX-UHFFFAOYSA-N 0.000 description 2
- QQQCWVDPMPFUGF-ZDUSSCGKSA-N alpinetin Chemical compound C1([C@H]2OC=3C=C(O)C=C(C=3C(=O)C2)OC)=CC=CC=C1 QQQCWVDPMPFUGF-ZDUSSCGKSA-N 0.000 description 2
- 150000001408 amides Chemical class 0.000 description 2
- 150000001412 amines Chemical class 0.000 description 2
- 150000001413 amino acids Chemical class 0.000 description 2
- 125000003277 amino group Chemical group 0.000 description 2
- RDOXTESZEPMUJZ-UHFFFAOYSA-N anisole Chemical compound COC1=CC=CC=C1 RDOXTESZEPMUJZ-UHFFFAOYSA-N 0.000 description 2
- 125000003710 aryl alkyl group Chemical group 0.000 description 2
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- 125000003055 glycidyl group Chemical group C(C1CO1)* 0.000 description 1
- 150000008282 halocarbons Chemical class 0.000 description 1
- 150000002367 halogens Chemical class 0.000 description 1
- 125000004970 halomethyl group Chemical group 0.000 description 1
- NGAZZOYFWWSOGK-UHFFFAOYSA-N heptan-3-one Chemical compound CCCCC(=O)CC NGAZZOYFWWSOGK-UHFFFAOYSA-N 0.000 description 1
- 125000005842 heteroatom Chemical group 0.000 description 1
- FUZZWVXGSFPDMH-UHFFFAOYSA-M hexanoate Chemical compound CCCCCC([O-])=O FUZZWVXGSFPDMH-UHFFFAOYSA-M 0.000 description 1
- XMBWDFGMSWQBCA-UHFFFAOYSA-N hydrogen iodide Chemical class I XMBWDFGMSWQBCA-UHFFFAOYSA-N 0.000 description 1
- 125000004029 hydroxymethyl group Chemical group [H]OC([H])([H])* 0.000 description 1
- MGFYSGNNHQQTJW-UHFFFAOYSA-N iodonium Chemical compound [IH2+] MGFYSGNNHQQTJW-UHFFFAOYSA-N 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- NIMLQBUJDJZYEJ-UHFFFAOYSA-N isophorone diisocyanate Chemical compound CC1(C)CC(N=C=O)CC(C)(CN=C=O)C1 NIMLQBUJDJZYEJ-UHFFFAOYSA-N 0.000 description 1
- JJWLVOIRVHMVIS-UHFFFAOYSA-N isopropylamine Chemical compound CC(C)N JJWLVOIRVHMVIS-UHFFFAOYSA-N 0.000 description 1
- 239000003350 kerosene Substances 0.000 description 1
- 229910052747 lanthanoid Inorganic materials 0.000 description 1
- 150000002602 lanthanoids Chemical class 0.000 description 1
- 239000011133 lead Substances 0.000 description 1
- 230000031700 light absorption Effects 0.000 description 1
- CDOSHBSSFJOMGT-UHFFFAOYSA-N linalool Chemical compound CC(C)=CCCC(C)(O)C=C CDOSHBSSFJOMGT-UHFFFAOYSA-N 0.000 description 1
- 229940006116 lithium hydroxide Drugs 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- 150000002689 maleic acids Chemical class 0.000 description 1
- FPYJFEHAWHCUMM-UHFFFAOYSA-N maleic anhydride Chemical compound O=C1OC(=O)C=C1 FPYJFEHAWHCUMM-UHFFFAOYSA-N 0.000 description 1
- WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical compound [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 125000005641 methacryl group Chemical group 0.000 description 1
- 125000005397 methacrylic acid ester group Chemical group 0.000 description 1
- 125000005395 methacrylic acid group Chemical group 0.000 description 1
- WSFSSNUMVMOOMR-NJFSPNSNSA-N methanone Chemical compound O=[14CH2] WSFSSNUMVMOOMR-NJFSPNSNSA-N 0.000 description 1
- UZKWTJUDCOPSNM-UHFFFAOYSA-N methoxybenzene Substances CCCCOC=C UZKWTJUDCOPSNM-UHFFFAOYSA-N 0.000 description 1
- YDKNBNOOCSNPNS-UHFFFAOYSA-N methyl 1,3-benzoxazole-2-carboxylate Chemical compound C1=CC=C2OC(C(=O)OC)=NC2=C1 YDKNBNOOCSNPNS-UHFFFAOYSA-N 0.000 description 1
- 229940095102 methyl benzoate Drugs 0.000 description 1
- 229940057867 methyl lactate Drugs 0.000 description 1
- 229940017219 methyl propionate Drugs 0.000 description 1
- LNOPIUAQISRISI-UHFFFAOYSA-N n'-hydroxy-2-propan-2-ylsulfonylethanimidamide Chemical compound CC(C)S(=O)(=O)CC(N)=NO LNOPIUAQISRISI-UHFFFAOYSA-N 0.000 description 1
- ZIUHHBKFKCYYJD-UHFFFAOYSA-N n,n'-methylenebisacrylamide Chemical compound C=CC(=O)NCNC(=O)C=C ZIUHHBKFKCYYJD-UHFFFAOYSA-N 0.000 description 1
- YKYONYBAUNKHLG-UHFFFAOYSA-N n-Propyl acetate Natural products CCCOC(C)=O YKYONYBAUNKHLG-UHFFFAOYSA-N 0.000 description 1
- YQCFXPARMSSRRK-UHFFFAOYSA-N n-[6-(prop-2-enoylamino)hexyl]prop-2-enamide Chemical compound C=CC(=O)NCCCCCCNC(=O)C=C YQCFXPARMSSRRK-UHFFFAOYSA-N 0.000 description 1
- UUIQMZJEGPQKFD-UHFFFAOYSA-N n-butyric acid methyl ester Natural products CCCC(=O)OC UUIQMZJEGPQKFD-UHFFFAOYSA-N 0.000 description 1
- LKKPNUDVOYAOBB-UHFFFAOYSA-N naphthalocyanine Chemical group N1C(N=C2C3=CC4=CC=CC=C4C=C3C(N=C3C4=CC5=CC=CC=C5C=C4C(=N4)N3)=N2)=C(C=C2C(C=CC=C2)=C2)C2=C1N=C1C2=CC3=CC=CC=C3C=C2C4=N1 LKKPNUDVOYAOBB-UHFFFAOYSA-N 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 150000002823 nitrates Chemical class 0.000 description 1
- 125000000449 nitro group Chemical group [O-][N+](*)=O 0.000 description 1
- WSGCRAOTEDLMFQ-UHFFFAOYSA-N nonan-5-one Chemical compound CCCCC(=O)CCCC WSGCRAOTEDLMFQ-UHFFFAOYSA-N 0.000 description 1
- OEDAJYOQELMMFC-UHFFFAOYSA-N octadecanoic acid;prop-2-enoic acid Chemical compound OC(=O)C=C.CCCCCCCCCCCCCCCCCC(O)=O OEDAJYOQELMMFC-UHFFFAOYSA-N 0.000 description 1
- TVMXDCGIABBOFY-UHFFFAOYSA-N octane Chemical compound CCCCCCCC TVMXDCGIABBOFY-UHFFFAOYSA-N 0.000 description 1
- 150000001451 organic peroxides Chemical class 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-O oxonium Chemical group [OH3+] XLYOFNOQVPJJNP-UHFFFAOYSA-O 0.000 description 1
- NWVVVBRKAWDGAB-UHFFFAOYSA-N p-methoxyphenol Chemical compound COC1=CC=C(O)C=C1 NWVVVBRKAWDGAB-UHFFFAOYSA-N 0.000 description 1
- 229920002866 paraformaldehyde Polymers 0.000 description 1
- 150000004968 peroxymonosulfuric acids Chemical class 0.000 description 1
- DLRJIFUOBPOJNS-UHFFFAOYSA-N phenetole Chemical compound CCOC1=CC=CC=C1 DLRJIFUOBPOJNS-UHFFFAOYSA-N 0.000 description 1
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 1
- XYFCBTPGUUZFHI-UHFFFAOYSA-O phosphonium Chemical group [PH4+] XYFCBTPGUUZFHI-UHFFFAOYSA-O 0.000 description 1
- 150000004714 phosphonium salts Chemical class 0.000 description 1
- 150000003013 phosphoric acid derivatives Chemical class 0.000 description 1
- XNGIFLGASWRNHJ-UHFFFAOYSA-L phthalate(2-) Chemical compound [O-]C(=O)C1=CC=CC=C1C([O-])=O XNGIFLGASWRNHJ-UHFFFAOYSA-L 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 125000005936 piperidyl group Chemical group 0.000 description 1
- 229920002037 poly(vinyl butyral) polymer Polymers 0.000 description 1
- 229920002647 polyamide Polymers 0.000 description 1
- 238000012643 polycondensation polymerization Methods 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920000139 polyethylene terephthalate Polymers 0.000 description 1
- 239000005020 polyethylene terephthalate Substances 0.000 description 1
- 229920001721 polyimide Polymers 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 239000011118 polyvinyl acetate Substances 0.000 description 1
- 229920002689 polyvinyl acetate Polymers 0.000 description 1
- 239000001267 polyvinylpyrrolidone Substances 0.000 description 1
- 229920000036 polyvinylpyrrolidone Polymers 0.000 description 1
- 235000013855 polyvinylpyrrolidone Nutrition 0.000 description 1
- 229910000027 potassium carbonate Inorganic materials 0.000 description 1
- 235000011181 potassium carbonates Nutrition 0.000 description 1
- 229940093932 potassium hydroxide Drugs 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- KCTAWXVAICEBSD-UHFFFAOYSA-N prop-2-enoyloxy prop-2-eneperoxoate Chemical compound C=CC(=O)OOOC(=O)C=C KCTAWXVAICEBSD-UHFFFAOYSA-N 0.000 description 1
- BWJUFXUULUEGMA-UHFFFAOYSA-N propan-2-yl propan-2-yloxycarbonyloxy carbonate Chemical compound CC(C)OC(=O)OOC(=O)OC(C)C BWJUFXUULUEGMA-UHFFFAOYSA-N 0.000 description 1
- 229940090181 propyl acetate Drugs 0.000 description 1
- QQONPFPTGQHPMA-UHFFFAOYSA-N propylene Natural products CC=C QQONPFPTGQHPMA-UHFFFAOYSA-N 0.000 description 1
- RUOJZAUFBMNUDX-UHFFFAOYSA-N propylene carbonate Chemical compound CC1COC(=O)O1 RUOJZAUFBMNUDX-UHFFFAOYSA-N 0.000 description 1
- 229940116423 propylene glycol diacetate Drugs 0.000 description 1
- 125000004805 propylene group Chemical group [H]C([H])([H])C([H])([*:1])C([H])([H])[*:2] 0.000 description 1
- 239000011241 protective layer Substances 0.000 description 1
- 229940079877 pyrogallol Drugs 0.000 description 1
- 150000003254 radicals Chemical class 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- SPVXKVOXSXTJOY-UHFFFAOYSA-O selenonium Chemical group [SeH3+] SPVXKVOXSXTJOY-UHFFFAOYSA-O 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 150000003384 small molecules Chemical class 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 235000017557 sodium bicarbonate Nutrition 0.000 description 1
- 229910000030 sodium bicarbonate Inorganic materials 0.000 description 1
- 229910000029 sodium carbonate Inorganic materials 0.000 description 1
- 235000017550 sodium carbonate Nutrition 0.000 description 1
- 229940083608 sodium hydroxide Drugs 0.000 description 1
- 235000019795 sodium metasilicate Nutrition 0.000 description 1
- GGCZERPQGJTIQP-UHFFFAOYSA-N sodium;9,10-dioxoanthracene-2-sulfonic acid Chemical compound [Na+].C1=CC=C2C(=O)C3=CC(S(=O)(=O)O)=CC=C3C(=O)C2=C1 GGCZERPQGJTIQP-UHFFFAOYSA-N 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 238000004528 spin coating Methods 0.000 description 1
- 238000013112 stability test Methods 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- HISNRBVYBOVKMB-UHFFFAOYSA-N stibonium Chemical group [SbH4+] HISNRBVYBOVKMB-UHFFFAOYSA-N 0.000 description 1
- 125000000547 substituted alkyl group Chemical group 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 125000000020 sulfo group Chemical group O=S(=O)([*])O[H] 0.000 description 1
- RWSOTUBLDIXVET-UHFFFAOYSA-O sulfonium Chemical group [SH3+] RWSOTUBLDIXVET-UHFFFAOYSA-O 0.000 description 1
- NMOALOSNPWTWRH-UHFFFAOYSA-N tert-butyl 7,7-dimethyloctaneperoxoate Chemical compound CC(C)(C)CCCCCC(=O)OOC(C)(C)C NMOALOSNPWTWRH-UHFFFAOYSA-N 0.000 description 1
- JZFHXRUVMKEOFG-UHFFFAOYSA-N tert-butyl dodecaneperoxoate Chemical compound CCCCCCCCCCCC(=O)OOC(C)(C)C JZFHXRUVMKEOFG-UHFFFAOYSA-N 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- YLQBMQCUIZJEEH-UHFFFAOYSA-N tetrahydrofuran Natural products C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 description 1
- 125000000101 thioether group Chemical group 0.000 description 1
- RYYWUUFWQRZTIU-UHFFFAOYSA-K thiophosphate Chemical compound [O-]P([O-])([O-])=S RYYWUUFWQRZTIU-UHFFFAOYSA-K 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- DVKJHBMWWAPEIU-UHFFFAOYSA-N toluene 2,4-diisocyanate Chemical compound CC1=CC=C(N=C=O)C=C1N=C=O DVKJHBMWWAPEIU-UHFFFAOYSA-N 0.000 description 1
- RUELTTOHQODFPA-UHFFFAOYSA-N toluene 2,6-diisocyanate Chemical compound CC1=C(N=C=O)C=CC=C1N=C=O RUELTTOHQODFPA-UHFFFAOYSA-N 0.000 description 1
- 229940001496 tribasic sodium phosphate Drugs 0.000 description 1
- 125000003866 trichloromethyl group Chemical group ClC(Cl)(Cl)* 0.000 description 1
- ZIBGPFATKBEMQZ-UHFFFAOYSA-N triethylene glycol Chemical compound OCCOCCOCCO ZIBGPFATKBEMQZ-UHFFFAOYSA-N 0.000 description 1
- RYFMWSXOAZQYPI-UHFFFAOYSA-K trisodium phosphate Chemical compound [Na+].[Na+].[Na+].[O-]P([O-])([O-])=O RYFMWSXOAZQYPI-UHFFFAOYSA-K 0.000 description 1
- 150000003673 urethanes Chemical class 0.000 description 1
- NQPDZGIKBAWPEJ-UHFFFAOYSA-N valeric acid Chemical compound CCCCC(O)=O NQPDZGIKBAWPEJ-UHFFFAOYSA-N 0.000 description 1
- 229910052720 vanadium Inorganic materials 0.000 description 1
- GPPXJZIENCGNKB-UHFFFAOYSA-N vanadium Chemical compound [V]#[V] GPPXJZIENCGNKB-UHFFFAOYSA-N 0.000 description 1
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- 239000008096 xylene Substances 0.000 description 1
- 125000002256 xylenyl group Chemical class C1(C(C=CC=C1)C)(C)* 0.000 description 1
- 125000006839 xylylene group Chemical group 0.000 description 1
- 150000007934 α,β-unsaturated carboxylic acids Chemical class 0.000 description 1
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- Photosensitive Polymer And Photoresist Processing (AREA)
- Materials For Photolithography (AREA)
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
Description
【0001】
【発明の属する技術分野】
本発明は、感光性組成物及び感光性印刷版に関する。詳しくは、赤外吸収色素としてフタロシアニン化合物を含有する感光性組成物の改良及びそれを用いた感光性印刷版に関する。
本発明の感光性組成物は、半導体レーザーやYAGレーザー等の赤外光に対して高い感受性を有し、保存安定性に優れ、白色灯下でのセーフライト性を有し、更に支持体に対する高い密着性及び現像性を有するので、特に感光性印刷版として有用である。
【0002】
【従来の技術】
コンピューターからのデジタル情報に基づき銀塩フィルム等のマスクを介せずレーザーの走査露光により直接画像形成可能なレーザー感光材料が求められている。特に、半導体レーザーに代表される赤外レーザーは出力、コスト、寸法、安定性に優れているため、このような赤外光に感光する材料が強く求められている。
このような光重合性組成物として、例えば増感色素/不飽和二重結合化合物をシアニン色素/芳香族ポリヒドロキシ化合物や多価アルコールのポリエステル(メタ)アクリレート(特開平2−189548号公報)或いは増感色素をスクアリリウム色素としたもの(特開平2−306247号公報)等が提案されている。
【0003】
【発明が解決しようとする課題】
しかしながら、これらの組成物については、感光波長領域は可視光から近赤外光まで幅広く、取扱は赤色燈のような暗室下とする必要があるため作業性に問題があり、且つ、保存安定性についても不十分であるため実用化は困難であった。特に、感光層の支持体に対する接着性が経時によって促進され、それにより、画像露光後の現像処理時に未露光部の除去が不十分となり残渣が生じる問題の解決は困難であった。
本発明の目的は、解像性、現像性、密着性、保存安定性に優れ、半導体レーザー等の赤外光を用いて直描が可能で且つ白色灯のような明室下でも取扱可能な新規な感光性組成物及び感光性印刷版を提供することにある。
【0004】
【課題を解決するための手段】
本発明者らは、かかる事情に鑑み鋭意検討した結果、特定の赤外吸収色素及び特定のエチレン性不飽和二重結合化合物を含有する感光性組成物が従来の問題点を解決し得ることを見出し、本発明を完成するに至った。
【0005】
即ち、本発明の要旨は、エチレン性不飽和二重結合化合物、赤外吸収色素及び重合開始剤を含有してなる感光性組成物において、赤外吸収色素がフタロシアニン化合物であり、且つエチレン性不飽和二重結合化合物が少なくとも(メタ)アクリロイルオキシアルキル基含有アミン化合物又は/及び(メタ)アクリロイルオキシアルキル基含有ホスフェート化合物を含有することを特徴とする感光性組成物及び陽極酸化されたアルミニウム支持体上に前記感光性組成物からなる層を有する感光性印刷版にある。
【0006】
【発明の実施の形態】
本発明の感光性組成物は、エチレン性不飽和二重結合化合物として(メタ)アクリロイルオキシアルキル基含有アミン化合物又は/及び(メタ)アクリロイルオキシアルキル基含有ホスフェート化合物、赤外吸収色素として特定のフタロシアニン化合物を含有する点に特徴を有する。これら特定の赤外吸収色素とエチレン性不飽和二重結合化合物を組み合わせることにより赤外光に対して選択的に高い感光性を有し、白色灯等に対するセーフライト性の付与が可能となり、また、経時による感光層の密着変化がなく地汚れ等、印刷時に特に問題となる欠点を解消することができる。
以下にこれらの成分等につき詳述する。尚、本発明において、「(メタ)アクリル」とは、アクリル及びメタクリルを意味するものとする。
【0007】
本発明に用いられる(メタ)アクリロイルオキシアルキル基含有アミン化合物とは、(メタ)アクリロイルオキシアルキル部分構造を有するアミン化合物をいい、この中、アルキルアミン構造を基本骨格とし、(メタ)アクリロイルオキシアルキル部分構造を有するものが好ましく、その具体例としては、例えば、特開昭49−36614号公報、特開昭50−129214号公報、特開昭61−151197号公報、特開平6−65218号公報、特開平6−35189号公報、特許第2700168号公報、西独特許第3710281号明細書等に記載のものを挙げることができる。これらの中、特に下記一般式(I) で表されるものが好ましい。
【0008】
【化3】
【0009】
(式中、R0 は水素原子又はメチル基を示し、Qは、それぞれ独立して、水素原子、置換基を有してもよいアルキル基又は置換基を有してもよいカルバモイル基を示し、該アルキル基は互いに直接又は窒素原子を介して連結してもよく、iは1〜12の整数であり、jは0〜5の整数であり、kは2〜12の整数であり、mは0又は1であり、nは0又は1であり、oは1〜5の整数であり、且つpは1〜3の整数である。但し、p=1のとき、残る二つのQの少なくとも一つは、(メタ)アクリロイルオキシアルキル基を有するアルキル基又は(メタ)アクリロイルオキシアルキル基を有するカルバモイル基であり、また、p=2のときは、残る一つのQは、水素原子又は置換基を有してもよいアルキル基若しくは置換基を有してもよいカルバモイル基を示す)
【0010】
式(I) において、Qが置換基を有してもよいアルキル基である場合、その炭素数は、通常、1〜15、好ましくは1〜5であり、その具体例としては、メチル基、エチル基、ヒドロキシエチル基、アセトキシエチル基、N−(メタ)アクリロイルオキシエチル−カルバモイル−オキシメチル基、N−(メタ)アクリロイルオキシエチル−カルバモイル−オキシエチル基、N−(メタ)アクリロイルオキシエチル−カルバモイル−オキシプロピル基等が挙げられる。
【0011】
またアルキル基が互いに直接又は窒素原子を介して連結する場合、環としては、ピペリジル環又はピペラジル環を形成するのが好ましい。また、Qが置換基を有してもよいカルバモイル基である場合、その具体例としては、例えばN−(メタ)アクリロイルオキシエチル−カルバモイル基等が挙げられる。
なお、iは好ましくは1〜3、jは好ましくは0又は1、oは好ましくは1〜3、kは好ましくは2〜6である。
そして、式(I) の化合物の具体例としては、例えば下記のA−1〜A−14の化合物を例示することができる。なお、各具体例におけるR0 は水素原子又はメチル基を示す。
【0012】
【化4】
【0013】
【化5】
【0014】
【化6】
【0015】
本発明に用いられる(メタ)アクリロイルオキシアルキル基含有ホスフェート化合物とは、(メタ)アクリロイルオキシアルキル部分構造を有するホスフェート化合物をいい、特に、下記一般式(II)で表されるものが好ましい。
【0016】
【化7】
【0017】
(式中、R0 は水素原子又はメチル基を示し、R1 及びR2 は、それぞれ独立して、水素原子又はアルキル基を示し、dは1〜25の整数であり、且つeは1又は2である)
【0018】
式(II)において、R1 及びR2 は、アルキル基である場合、その炭素数は、通常、1〜15、好ましくは1〜5であるが、水素原子であるのが好ましく、dは1〜10の範囲が好ましく、これらの化合物の具体例としては、メタアクリロイルオキシエチルホスフェート、ビス(メタアクリロイルオキシエチル)ホスフェート等が挙げられる。
【0019】
本発明の組成物については、これら必須のエチレン性不飽和二重結合化合物以外に、例えば、下記に挙げるモノマーを併用することもできる。他種のモノマーを併用することでタック性等の特性を改善することができ、併用することは望ましい。併用可能なモノマーを具体例として示すならば、例えば、不飽和カルボン酸(例えば、アクリル酸、メタクリル酸、イタコン酸、クロトン酸、イソクロトン酸、マレイン酸等)と脂肪族、芳香族、脂環式、ヘテロ環等の多価アルコール化合物とのエステル、不飽和カルボン酸と脂肪族、芳香族等の多価アミン化合物とのアミド、不飽和アルコールと脂肪族、芳香族、脂環式等のイソシアネート化合物とのウレタン、不飽和カルボン酸と脂肪族、芳香族、脂環式、ヘテロ環等のエポキシ化合物とのエステル等を挙げることができる。
【0020】
多価アルコール化合物と不飽和カルボン酸とのエステルの具体例としては、アクリル酸エステルとして、エチレングリコールジアクリレート、トリエチレングリコールジアクリレート、1,3−ブタンジオールジアクリレート、テトラメチレングリコールジアクリレート、プロピレングリコールジアクリレート、ネオペンチルグリコールジアクリレート、トリメチロールプロパントリアクリレート、トリメチロールプロパントリ(アクリロイルオキシプロピル)エーテル、トリメチロールエタントリアクリレート、ヘキサンジオールジアクリレート、1,4−シクロヘキサンジオールジアクリレート、テトラエチレングリコールジアクリレート、ペンタエリスリトールジアクリレート、ペンタエリスリトールトリアクリレート、ペンタエリスリトールテトラアクリレート、ジペンタエリスリトールジアクリレート、ジペンタエリスリトールヘキサアクリレート、ソルビトールトリアクリレート、ソルビトールテトラアクリレート、ソルビトールペンタアクリレート、ソルビトールヘキサアクリレート、トリ(アクリロイルオキシエチル)イソシアヌレート、ポリエステルアクリレートオリゴマー等を挙げることができる。
【0021】
メタクリル酸エステルとしては、テトラメチレングリコールジメタクリレート、トリエチレングリコールジメタクリレート、ネオペンチルグリコールジメタクリレート、トリメチロールプロパントリメタクリレート、トリメチロールエタントリメタクリレート、エチレングリコールジメタクリレート、1,3−ブタンジオールジメタクリレート、ヘキサンジオールジメタクリレート、ペンタエリスリトールジメタクリレート、ペンタエリスリトールトリメタクリレート、ペンタエリスリトールテトラメタクリレート、ジペンタエリスリトールジメタクリレート、ジペンタエリスリトールヘキサメタクリレート、ソルビトールトリメタクリレート、ソルビトールテトラメタクリレート、ビス〔p−(3−メタクリロイルオキシ−2−ヒドロキシプロポキシ)フェニル〕ジメチルメタン、ビス〔p−(メタクリロイルオキシエトキシ)フェニル〕ジメチルメタン等を挙げることができる。
【0022】
イタコン酸エステルとしては、エチレングリコールジイタコネート、プロピレングリコールジイタコネート、1,3−ブタンジオールジイタコネート、テトラメチレングリコールジイタコネート、ペンタエリスリトールジイタコネート、ソルビトールテトライタコネート等を挙げることができる。
【0023】
クロトン酸エステルとしては、エチレングリコールジクロトネート、テトラメチレングリコールジクロトネート、ペンタエリスリトールジクロトネート、ソルビトールテトラクロトネート等がある。イソクロトン酸エステルとしては、エチレングリコールジイソクロトネート、ペンタエリスリトールジイソクロトネート、ソルビトールテトライソクロトネート等を挙げることができる。
【0024】
マレイン酸エステルとしては、エチレングリコールジマレート、トリエチレングリコールジマレート、ペンタエリスリトールジマレート、ソルビトールテトラマレート等がある。更に、前述のエステルモノマーの混合物も挙げることができる。
【0025】
多価アミン化合物と不飽和カルボン酸とのアミドのモノマーの具体例としては、メチレンビス−アクリルアミド、メチレンビス−メタクリルアミド、1,6−ヘキサメチレンビス−アクリルアミド、1,6−ヘキサメチレンビス−メタクリルアミド、ジエチレントリアミントリスアクリルアミド、キシリレンビスアクリルアミド、キシリレンビスメタクリルアミド等を挙げることができる。
【0026】
ウレタン化合物としては、パラフェニレンジイソシアネート、2,4−トリレンジイソシアネート、2,6−トリレンジイソシアネート、4,4’−ジフェニルメタンジイソシアネート、ナフタレン−1,5−ジイソシアネート、トリジンジイソシアネート等の芳香族ジイソシアネート、ヘキサメチレンジイソシアネート、リジンメチルエステルジイソシアネート、2,4,4−トリメチルヘキサメチレンジイソシアネート、ダイマー酸ジイソシアネート等の脂肪族ジイソシアネート、イソホロンジイソシアネート、4,4’−メチレンビス(シクロヘキシルイソシアネート)、ω,ω’−ジイソシアネートジメチルシクロヘキサン等の脂環式ジイソシアネート、キシリレンジイソシアネート、α,α,α’,α’−テトラメチルキシリレンジイソシアネート等の芳香環を有する脂肪族ジイソシアネート、リジンエステルトリイソシアネート、1,6,11−ウンデカントリイソシアネート、1,8−ジイソシアネート−4−イソシアネートメチルオクタン、1,3,6−ヘキサメチレントリイソシアネート、ビシクロヘプタントリイソシアネート、トリス(イソシアネートフェニルメタン)、トリス(イソシアネートフェニル)チオホスフェート等のトリイソシアネートにヒドロキシメチル(メタ)アクリレート、ヒドロキシエチル(メタ)アクリレート、ペンタエリスリトールトリ(メタ)アクリレート、ジペンタエリスリトールペンタ(メタ)アクリレート、2−ヒドロキシ−3−アクリロイルオキシプロピル(メタ)アクリレート、ジトリメチロールプロパントリ(メタ)アクリレート、イソシアヌル酸アルキレンオキサイド付加ジ(メタ)アクリレート、ペンタエリスリトールジ(メタ)アクリレートモノステアレート等のような水酸基を有するアクリル化合物を反応させた化合物を挙げることができる。
【0027】
不飽和カルボン酸とエポキシ化合物のエステルとしては、グリシジル基或いは脂環式エポキシ基等のエポキシ環を有するエポキシ化合物にα、β−不飽和カルボン酸を付加反応させた化合物が挙げられる。
エポキシ化合物としては、エポキシ環を結合させている基体骨格としては脂肪族、芳香族、ヘテロ環、或いはこれらが種々入り交じった構造の種々のエポキシ化合物であり、芳香族エポキシ化合物としては、例えばフェノールノボラックエポキシ化合物、(o,m,p)−クレゾールノボラックエポキシ化合物、ビスフェノール−Aエポキシ化合物、ビスフェノール−Fエポキシ化合物、或いはブロム化フェノールノボラックエポキシ化合物のようにハロゲン化されたエポキシ化合物等が挙げられる。これらの化合物は低分子化合物であっても、樹脂となるようなオリゴマー、高分子であってもよい。
【0028】
脂肪族エポキシ化合物としては、例えばソルビトールポリグリシジルエーテル、ソルビタンポリグリシジルエーテル、(ポリ)グリセロールポリグリシジルエーテル、トリメチロールプロパンポリグリシジルエーテル、ネオペンチルグリコールジグリシジルエーテル、ヘキサンジオールジグリシジルエーテル、(ポリ)エチレングリコールジグリシジルエーテル、(ポリ)プロピレングリコールジグリシジルエーテル、(ポリ)テトラメチレングリコールジグリシジルエーテル、(ポリ)ペンタメチレングリコールジグリシジルエーテル等が挙げられる。
ヘテロ環構造を有するエポキシ化合物としては、トリグリシジルイソシアヌレート、トリグリシジルトリス(2−ヒドロキシエチル)イソシアヌレート等を挙げることができる。
脂環式エポキシ化合物としては、ダイセル化学社製のセロキサイド2021、2080、3000、2000、エポリードGT300、GT400等を挙げることができる。
更に、無水マレイン酸、テトラヒドロ無水フタル酸等の酸無水物等で更に変性させた変性エポキシアクリレートも好ましく用いることができる。
【0029】
赤外吸収色素として用いるフタロシアニン化合物は650nmから1300nm、より好ましくは750nmから1200nmの範囲に吸収極大を有する化合物であり、下記式(III) 又は(IV)で表されるフタロシアニン基本骨格を有する化合物である。光吸収特性並びに溶解性向上のため、下記基本骨格の芳香環へ置換基導入が行われたフタロシアニン化合物である。
【0030】
【化8】
【0031】
〔式中、Mはフタロシアニン錯塩を形成する金属元素を表し、芳香環は置換基を有してもよく、該置換基が互いに連結して縮合環を形成してもよく、さらに該縮合環は置換基を有してもよい。〕
【0032】
上記中心金属Mとしては、アルカリ金属(Ia)、アリカリ土類金属(IIa) 、IIIb族、IVb 族、Vb族、VIb 族、VIIb族、VIIIb 族、Ib族、IIb 族、IIIa族、IVa 族、Va族、ランタニド、アクチニドの種々の金属が挙げられる。
芳香環及び縮合環の置換基としてはアルキル基、アルコキシ基、アルコキシアルキル基、アリール基、ハロゲン原子、ニトロ基、シアノ基、アミノ基、アルコキシカルボニル基、ビニル基、カルボキシル基、アクリロイル基、チオエーテル基等が挙げられ、複数の置換基は同一でも異なっていてもよい。
【0033】
このような化合物としては、例えば、特開昭64−60660号公報、特開平1−100171号公報、特開平3−31247号公報、特開平4−15263号公報、特開平4−15264号公報、特開平4−15265号公報、特開平4−15266号公報に記載のフタロシアニン化合物、特開平2−138382号公報に記載のアルキルフタロシアニン化合物、特開平3−77840号公報、特開平3−100066号公報に記載のアシロキシフタロシアニン化合物、特開平4−348168号公報に記載のアルコキシフタロシアニン化合物、特開昭60−23451号公報、特開昭61−215662号公報、特開昭61−215663号公報、特開昭63−270765号公報、特開平1−287175号公報、特開平2−43269号公報、特開平2−296885号公報、特開平3−43461号公報、特開平3−265664号公報、特開平3−265665号公報に記載のナフタロシアニン化合物、特開平1−108264号公報、特開平1−108265号公報に記載のジナフタロシアニン化合物、特開平10−182995号公報、特開平10−120927号公報、特開平9−202860号公報、特開平8−325468号公報、特開平8−225751号公報、特開平8−120186号公報に記載の含ハロゲンフタロシアニン化合物等から選択することができる。
【0034】
上記のうち、式(IV)で表され、中心金属Mが亜鉛等のIIb 族、錫等のIVb 族、アルミニウム、ガリウム等のIIIb族、銅等のIb族、バナジウム等のVa族の錯塩が好ましく、中でも、IIb 族、IVb 族の錯塩、特に亜鉛、又は錫の錯塩が好ましい。又、フタロシアニン化合物の溶解性の点から、少なくとも一つの芳香環が置換基を有する化合物が好ましく、その置換基として、炭素数1〜6のアルキル基、炭素数1〜6のアルコキシ基、炭素数2〜8のアルコキシアルキル基、又はハロゲン原子のいずれかを有するか、或いは、置換基が互いに連結してナフタロシアニン構造を形成し、かつ、炭素数1〜6のアルキル基、炭素数1〜6のアルコキシ基、炭素数2〜8のアルコキシアルキル基、又はハロゲン原子のいずれかの置換基を有する化合物が好ましい。
【0035】
具体的な化学構造を吸収極大(λmax )及び吸収極大(λmax )におけるモル吸光係数(ε)と共に例示するならば、例えば、下記のR−1〜R−21の化合物を挙げることができる。なお、以下の例示において、Meはメチル基を、Etはエチル基を、Buはブチル基を、Phはフェニル基をそれぞれ示す。
【0036】
【化9】
【0037】
【化10】
【0038】
【化11】
【0039】
【化12】
【0040】
【化13】
【0041】
【化14】
【0042】
【化15】
【0043】
【化16】
【0044】
【化17】
【0045】
【化18】
【0046】
【化19】
【0047】
なお、吸収極大(λmax )は上記化合物を塗布溶剤として用いる有機溶剤に溶解させて分光光度計にて測定したものである。このような有機溶剤としてはジクロロメタン、クロロホルム、四塩化炭素、テトラクロロエチレン等のハロゲン化炭化水素、テトラヒドロフラン、ジエチルエーテル等のエーテル類、アセトン、メチルエチルケトン、シクロヘキサノン等のケトン類、メタノール、エタノール、プロパノール等のアルコール類、メチルセロソルブ、エチルセロソルブ、プロピレングリコールモノメチルエーテル、プロピレングリコールモノエチルエーテル等のグリコールエーテル類、ベンゼン、トルエン、キシレン等の炭化水素類が挙げられる。
【0048】
以上掲げたフタロシアニン化合物で好ましいものはレーザー照射波長に対して±50nmの範囲に吸収極大を有するものである。
また、モル吸光係数(ε)は10000以上、好ましくは20000以上、より好ましくは30000以上である。
吸収極大(λmax )、吸光係数(ε)が上記範囲からずれた場合には充分な感度を得られなくなる傾向がある。
【0049】
重合開始剤としては、活性光線照射により不飽和二重結合化合物を重合させることのできるラジカル種を生成できる化合物であれば特に制限を受けない。
このような化合物としては例えば、
(a)炭素ハロゲン結合を有する化合物
(b)カルボニル化合物
(c)有機過酸化物化合物
(d)ヘキサアリールビイミダゾール化合物
(e)ボレート化合物
(f)メタロセン化合物
等を挙げることができる。
【0050】
炭素−ハロゲン結合を有する化合物として好ましいものは、ハロメチル基を有するトリアジンである。例えば、若林等,Bull.Chem.Soc.Japan,42,2924(1969)記載の化合物、例えば、2−フェニル−4,6−ビス(トリクロロメチル)−s−トリアジン、2−(p−クロロフェニル)−4,6−ビス(トリクロロメチル)−s−トリアジン、2−(p−トリル)−4,6−ビス(トリクロロメチル)−s−トリアジン、2−(p−メトキシフェニル)−4,6−ビス(トリクロロメチル)−s−トリアジン、2−(2’,4’−ジクロロフェニル)−4,6−ビス(トリクロロメチル)−s−トリアジン、2,4,6−トリス(トリクロロメチル)−s−トリアジン、2−メチル−4,6−ビス(トリクロロメチル)−s−トリアジン、2−n−ノニル−4,6−ビス(トリクロロメチル)−s−トリアジン、2−(α,α,β−トリクロロエチル)−4,6−ビス(トリクロロメチル)−s−トリアジン等が挙げられる。その他、英国特許第1388492号明細書記載の化合物、例えば、2−スチリル−4,6−ビス(トリクロロメチル)−s−トリアジン、2−(p−メチルスチリル)−4,6−ビス(トリクロロメチル)−s−トリアジン、2−(p−メトキシスチリル)−4,6−ビス(トリクロロメチル)−s−トリアジン、2−(p−メトキシスチリル)−4−アミノ−6−トリクロロメチル−s−トリアジン等、特開昭53−133428号公報記載の化合物、例えば、2−(4−メトキシ−ナフト−1−イル)−4,6−ビス(トリクロロメチル)−s−トリアジン、2−(4−エトキシ−ナフト−1−イル)−4,6−ビス(トリクロロメチル)−s−トリアジン、2−〔4−(2−エトキシエチル)ナフト−1−イル〕−4,6−ビス(トリクロロメチル)−s−トリアジン、2−(4,7−ジメトキシナフト−1−イル)−4,6−ビス(トリクロロメチル)−s−トリアジン、2−(アセナフト−5−イル)−4,6−ビス(トリクロロメチル)−s−トリアジン等、また、F.C.Schaefer等,J.Org.Chem.,29,1527(1964)記載の化合物、例えば、2−メチル−4,6−ビス(トリブロモメチル)−s−トリアジン、2,4,6−トリス(トリブロモメチル)−s−トリアジン、2,4,5−トリス(ジブロモメチル)−s−トリアジン、2−アミノ−4−メチル−6−トリブロモメチル−s−トリアジン、2−メトキシ−4−メチル−6−トリクロロメチル−s−トリアジン等を挙げることができる。
【0051】
カルボニル化合物としては、ベンゾフェノン、ミヒラーケトン、2−メチルベンゾフェノン、3−メチルベンゾフェノン、4−メチルベンゾフェノン、2−クロロベンゾフェノン、4−ブロモベンゾフェノン、2−カルボキシベンゾフェノン等のベンゾフェノン誘導体、2,2−ジメトキシ−2−フェニルアセトフェノン、2,2−ジエトキシアセトフェノン、1−ヒドロキシシクロヘキシルフェニルケトン、α−ヒドロキシ−2−メチルフェニルプロパノン、1−ヒドロキシ−1−メチルエチル−(p−イソプロピルフェニル)ケトン、1−ヒドロキシ−1−(p−ドデシルフェニル)ケトン、2−メチル−(4’−(メチルチオ)フェニル)−2−モルホリノ−1−プロパノン、1,1,1−トリクロロメチル−(p−ブチルフェニル)ケトン等のアセトフェノン誘導体、チオキサントン、2−エチルチオキサントン、2−イソプロピルチオキサントン、2−クロロチオキサントン、2,4−ジメチルチオキサントン、2,4−ジエチルチオキサントン、2,4−ジイソプロピルチオキサントン等のチオキサントン誘導体、p−ジメチルアミノ安息香酸エチル、p−ジエチルアミノ安息香酸エチル等の安息香酸エステル誘導体等を挙げることができる。
【0052】
有機過酸化物としては、メチルエチルケトンパーオキサイド、シクロヘキサノンパーオキサイド、3,3,5−トリメチルシクロヘキサノンパーオキサイド、メチルシクロヘキサノンパーオキサイド、アセチルアセトンパーオキサイド、1,1−ビス(tert−ブチルパーオキシ)−3,3,5−トリメチルシクロヘキサン、1,1−ビス(tert−ブチルパーオキシ)シクロヘキサン、2,2−ビス(tert−ブチルパーオキシ)ブタン、tert−ブチルハイドロパーオキサイド、クメンハイドロパーオキサイド、ジイソプロピルベンゼンハイドロパーオキサイド、p−メンタンハイドロパーオキサイド、2,5−ジメチルヘキサン−2,5−ジハイドロパーオキサイド、1,1,3,3−テトラメチルブチルハイドロパーオキサイド、ジ−tert−ブチルパーオキサイド、tert−ブチルクミルパーオキサイド、ジクミルパーオキサイド、ビス(tert−ブチルパーオキシイソプロピル)ベンゼン、2,5−ジメチル−2,5−ジ(tert−ブチルパーオキシ)ヘキサン、過酸化こはく酸、過酸化ベンゾイル、2,4−ジクロロベンゾイルパーオキサイド、m−トルオイルパーオキサイド、ジイソプロピルパーオキシジカーボネート、ジ−2−エチルヘキシルパーオキシジカーボネート、ジ−2−エトキシエチルパーオキシジカーボネート、ジメトキシイソプロピルパーオキシジカーボネート、ビス(3−メチル−3−メトキシブチル)パーオキシジカーボネート、tert−ブチルパーオキシアセテート、tert−ブチルパーオキシピバレート、tert−ブチルパーオキシネオデカノエート、tert−ブチルパーオキシオクトエート、tert−ブチルパーオキシ−3,5,5−トリメチルヘキサノエート、tert−ブチルパーオキシラウレート、3,3’,4,4’−テトラ(t−ブチルパーオキシカルボニル)ベンゾフェノン、3,3’,4,4’−テトラ(アミノパーオキシカルボニル)ベンゾフェノン、3,3’,4,4’−テトラ(t−ヘキシルパーオキシカルボニル)ベンゾフェノン、3,3’,4,4’−テトラ(t−オクチルパーオキシカルボニル)ベンゾフェノン、3,3’,4,4’−テトラ(クミルパーオキシカルボニル)ベンゾフェノン、3,3’,4,4’−テトラ(p−イソプロピルクミルパーオキシカルボニル)ベンゾフェノン、カルボニルビス(t−ブチルパーオキシ二水素二フタレート)、カルボニルビス(t−ヘキシルパーオキシ二水素二フタレート)等を挙げることができる。
【0053】
ヘキサアリールビイミダゾール化合物としては、2,2’−ビス(o−クロロフェニル)−4,4’,5,5’−テトラフェニルビイミダゾール、2,2’−ビス(o−ブロモフェニル)−4,4’,5,5’−テトラフェニルビイミダゾール、2,2’−ビス(o,p−ジクロロフェニル)−4,4’,5,5’−テトラフェニルビイミダゾール、2,2’−ビス(o−クロロフェニル)−4,4’,5,5’−テトラ(m−メトキシフェニル)ビイミダゾール、2,2’−ビス(o,p−ジクロロフェニル)−4,4’,5,5’−テトラフェニルビイミダゾール、2,2’−ビス(o−ニトロフェニル)−4,4’,5,5’−テトラフェニルビイミダゾール、2,2’−ビス(o−メチルフェニル)−4,4’,5,5’−テトラフェニルビイミダゾール、2,2’−ビス(o−フルオロフェニル)−4,4’,5,5’−テトラフェニルビイミダゾール等が挙げられる。
【0054】
ボレート化合物としては、特開平9−188686号公報、特開平9−188685号公報、特開平9−188710号公報、特開平9−106242号公報、特開平8−217813号公報に記載の有機ホウ素アンモニウム錯体、特開平6−157623号公報、特開平6−175564号公報、特開平6−175561号公報に記載の有機ホウ素スルホニウム錯体或いは有機ホウ素オキソスルホニウム錯体、特開平6−175554号公報、特開平6−175553号公報に記載の有機ホウ素ヨードニウム錯体、特開平9−188710号公報に記載の有機ホウ素ホスホニウム錯体、特開平6−348011号公報、特開平7−128785号公報、特開平7−140589号公報、特開平7−306527号公報、特開平7−292014号公報等の有機ホウ素遷移金属配位錯体等を具体例として挙げることができ、具体的な構造としては例えば下記のものを挙げることができる。
好ましい有機ホウ素錯体は下記式(V) に示される基本構造を有する化合物である。
【0055】
【化20】
【0056】
(式中、R3 、R4 、R5 及びR6 は、それぞれ独立に、置換基を有してもよいアルキル基、置換基を有してもよいアリール基、置換基を有してもよいアラルキル基、置換基を有してもよいアルカリール基、置換基を有してもよいアルケニル基、置換基を有してもよいアルキニル基、置換基を有してもよい脂環式基、又は置換基を有してもよい複素環基を表し、これらは互いに連結して環状構造を形成していてもよく、X+ は対カチオン基を表す)
【0057】
ここで、R3 、R4 、R5 及びR6 のアルキル基、及び脂環式基としては、炭素数が1〜10のものが、アルケニル基、及びアルキニル基としては、炭素数が1〜15のものが、又、アリール基、アラルキル基、及びアルカリール基としては、炭素数が6〜20のものが、それぞれ好ましく、アリール基としてはフェニル基が特に好ましい。又、それらの置換基としてはアルキル基、アルコキシ基、カルボキシ基、アシルオキシ基、アルコキシカルボニル基、ヒドロキシ基、アミノ基、アルキルアミノ基、ハロゲン化アルキル基、又はハロゲン原子等が挙げられ、ハロゲン原子が特に好ましい。
【0058】
安定性並びに高重合活性の観点からR3 、R4 、R5 及びR6 の内3個が置換基を有してもよいアリール基、1個が置換基を有してもよいアルキル基であるトリアリールアルキルホウ素錯体が好ましい。
また、ホウ素と結合したアリール基同士が下記のように化学結合を有したものも好ましい。なお、ここで、Rはアルキル基である。
【0059】
【化21】
【0060】
これらの有機ホウ素錯体における好ましいアニオンの具体例としては、例えば、n−ブチル−トリフェニルホウ素アニオン、n−ブチル−トリス(p−メチルフェニル)ホウ素アニオン、n−ブチル−トリス(2,4,6−トリメチルフェニル)ホウ素アニオン、n−ブチル−トリス(p−メトキシフェニル)ホウ素アニオン、n−ブチル−トリス(m−クロロフェニル)ホウ素アニオン、n−ブチル−トリス(p−クロロフェニル)ホウ素アニオン、n−ブチル−トリス(m−フルオロフェニル)ホウ素アニオン、n−ブチル−トリス(p−フルオロフェニル)ホウ素アニオン、n−ブチル−トリス(2,6−ジフルオロフェニル)ホウ素アニオン、n−ブチル−トリス(2,4,6−トリフルオロフェニル)ホウ素アニオン、n−ブチル−トリス(2,3,4,5,6−ペンタフルオロフェニル)ホウ素アニオン、n−ブチル−トリス(m−トリフルオロメチルフェニル)ホウ素アニオン、n−ブチル−トリス(3,5−ジ−トリフルオロメチルフェニル)ホウ素アニオン、n−ブチル−トリス(2,6−ジフルオロ−3−ピロリルフェニル)ホウ素アニオン、n−ヘキシル−トリス(m−フルオロフェニル)ホウ素アニオン等が挙げられる。
【0061】
対カチオン基としては特開昭62−143044号公報、特開昭62−150242号公報に記載のカチオン染料のような可視光領域に吸収のあるものは安定性の観点で劣るため、できるだけ可視光領域に吸収の無いものが好ましい。例えば、アンモニウム、ホスホニウム、アルソニウム、スチボニウム、オキソニウム、スルホニウム、セレノニウム、スタンノニウム、ヨードニウム等のオニウムカチオン基、遷移金属配位カチオン錯体等を挙げることができる。中でも、アンモニウムカチオンが好ましく、テトラアルキル(炭素数1〜10)アンモニウムカチオンが特に好ましい。
【0062】
具体的構造を例示するならば、例えば、以下の化合物を挙げることができる。なお、以下の例示において、Meはメチル基を、Etはエチル基を、Buはブチル基をそれぞれ示す。
【0063】
【化22】
【0064】
【化23】
【0065】
【化24】
【0066】
【化25】
【0067】
【化26】
【0068】
メタロセン化合物としては、特開昭59−152396号公報、特開昭61−151197号公報、特開昭63−41484号公報、特開平2−249号公報、特開平2−4705号公報、特開平5−83588号公報記載の種々のチタノセン化合物、例えばジ−シクロペンタジエニル−Ti−ビス−フェニル、ジ−シクロペンタジエニル−Ti−ビス(2,6−ジフルオロフェニ−1−イル)、ジ−シクロペンタジエニル−Ti−ビス(2,4−ジフルオロフェニ−1−イル)、ジ−シクロペンタジエニル−Ti−ビス(2,4,6−トリフルオロフェニ−1−イル)、ジ−シクロペンタジエニル−Ti−ビス(2,3,5,6−テトラフルオロフェニ−1−イル)、ジ−シクロペンタジエニル−Ti−ビス(2,3,4,5,6−ペンタフルオロフェニ−1−イル)、ジ(メチルシクロペンタジエニル)−Ti−ビス(2,6−ジフルオロフェニ−1−イル)、ジ(メチルシクロペンタジエニル)−Ti−ビス(2,4,6−トリフルオロフェニ−1−イル)、ジ(メチルシクロペンタジエニル)−Ti−ビス(2,3,5,6−テトラフルオロフェニ−1−イル)、ジ(メチルシクロペンタジエニル)−Ti−ビス(2,3,4,5,6−ペンタフルオロフェニ−1−イル)等を挙げることができる。また、特開平1−304453号公報、特開平1−152109号公報記載の鉄−アレーン錯体も好適である。
以上掲げた光重合開始剤の中で特に好ましいものは炭素ハロゲン結合を有する化合物並びにボレート化合物である。特にボレート化合物が好ましい。
【0069】
以上説明した必須成分以外にバインダー樹脂としてアルカリ可溶性樹脂を含有させることがアルカリ現像性、塗膜特性の点で好ましい。
アルカリ可溶性樹脂は水には不溶であり、希アルカリ水溶液には可溶な樹脂であり、このような性質を有するものとしてフェノール性水酸基、アルボキシル基を有する樹脂を挙げることができる。
フェノール性水酸基を有する樹脂としてはフェノール誘導体を酸性或いはアルカリ性の条件下、ホルムアルデヒド、パラホルムアルデヒド、アセトアルデヒド、アセトン等で縮重合させたフェノール樹脂、ノボラック樹脂、レゾール樹脂或いはフェノール性水酸基とエチレン性不飽和基を併せ持つモノマーをラジカル又はイオン重合させたポリビニルフェノール樹脂を挙げることができる。
【0070】
フェノール誘導体としてはフェノール、(o,m,p−)クレゾール、キシレノール、レゾール、ピロガロール、ビスフェノール等種々のものを用いることができる。
一方、カルボキシル基を有する樹脂としては不飽和カルボン酸を単独或いは他の共重合モノマーとラジカル或いはイオン重合させた樹脂、不飽和基を有する酸無水物を重合させ、酸無水物の部分をハーフエステル化させた樹脂、エポキシアクリレート等のOH基部分に酸無水物を付加させることによりカルボキシル基を付与した樹脂等を挙げることができる。
【0071】
以上挙げた樹脂の中では現像性の高さからカルボキシル基を有する樹脂が好ましく、中でも不飽和カルボン酸を重合させた樹脂が合成の容易さ、コスト等の観点から好ましい。
不飽和カルボン酸としては(メタ)アクリル酸、イタコン酸、クロトン酸、マレイン酸、フマル酸等を挙げることができるが、中でも(メタ)アクリル酸を含有するアクリル樹脂が好ましいものである。単独重合させた樹脂を用いることも可能であるが、スチレン、α−メチルスチレン、ビニルフェノール、(メタ)アクリル酸メチルエステル、(メタ)アクリル酸エチルエステル、(メタ)アクリル酸プロピルエステル、(メタ)アクリル酸ブチルエステル、(メタ)アクリル酸ペンチルエステル、(メタ)アクリル酸ヘキシルエステル、(メタ)アクリル酸ドデシルエステル、(メタ)アクリル酸ベンジルエステル、(メタ)アクリル酸2−エチルヘキシルエステル、(メタ)アクリル酸ヒドロキシメチルエステル、(メタ)アクリル酸ヒドロキシエチルエステル、アクリロニトリル、酢酸ビニル、アクリルアミド、N−メチロールアクリルアミド、(メタ)アクリル酸グリシジルエステル等のモノマーを共重合させたアクリル共重合樹脂がより好適である。
【0072】
具体的な共重合体としては、例えば、特開昭60−208748号公報記載のメタクリル酸メチル/メタクリル酸共重合体、特開昭60−214354号公報記載のメタクリル酸メチル/アクリル酸メチル/メタクリル酸共重合体、特開平5−36581号公報記載のベンジルメタクリレート/メタクリル酸メチル/メタクリル酸/アクリル酸2−エチルヘキシル共重合体、特開平5−333542号公報記載のメタクリル酸メチル/メタクリル酸n−ブチル/アクリル酸2−エチルヘキシル/メタクリル酸共重合体、特開平7−261407号公報記載のスチレン/メタクリル酸メチル/アクリル酸メチル/メタクリル酸共重合体、特開平10−110008号公報記載のメタクリル酸メチル/アクリル酸n−ブチル/アクリル酸2−エチルヘキシル/メタクリル酸共重合体、特開平10−198031号公報記載のメタクリル酸メチル/アクリル酸n−ブチル/アクリル酸2−エチルヘキシル/スチレン/メタクリル酸共重合体等を挙げることができる。
【0073】
アルカリ可溶性樹脂の好ましい分子量としては、ゲルパーミエーションクロマトグラフィー(GPC)で測定したポリスチレン換算の重量平均分子量で1000〜400000の範囲である。また、樹脂中に含有されるフェノール性水酸基、カルボキシル基等の酸性基の好ましい含有量は苛性カリによる中和滴定で求められる酸価で20〜500mg・KOH/gの範囲である。この範囲から外れた場合には、現像性や塗布特性の点で問題を生じる場合がある。
【0074】
以上述べた感光性組成物の好ましい配合割合は、エチレン性不飽和二重結合化合物100重量部に対して、赤外吸収色素が0.01〜30重量部、より好ましくは0.05〜25重量部、重合開始剤が0.01〜30重量部、より好ましくは0.05〜25重量部の範囲である。また、赤外吸収色素と重合開始剤の配合比率は赤外吸収色素1重量部に対して重合開始剤0.1〜10重量部の範囲にするとよい。
【0075】
(メタ)アクリロイルオキシアルキル基含有アミン化合物又は/及び(メタ)アクリロイルオキシアルキル基含有ホスフェート化合物はエチレン性不飽和化合物中1〜100重量%、好ましくは2〜90重量%、更に好ましくは3〜80重量%の範囲にするとよい。
更に、アルカリ可溶性樹脂を含有させる場合には50〜600重量部、より好ましくは50〜500重量部の範囲にするとよい。
【0076】
次に感光性印刷版の作製について説明する。感光性印刷版は前述した感光性組成物を有機溶剤に溶解させた感光液をアルミニウム支持体上に塗布、乾燥させればよい。塗布方法としては特に制限されないが、例えば、回転塗布、ワイヤーバー塗布、ディップ塗布、エアーナイフ塗布、スプレー塗布、エアースプレー塗布、静電エアースプレー塗布、ロール塗布、ブレード塗布及びカーテン塗布等公知の塗布方法を用いることができる。
【0077】
感光性組成物を溶解させる溶媒としては、メタノール、エタノール、n−プロパノール、i−プロパノール、n−ブタノール、n−ペンタノール、ヘキサノール等の脂肪族アルコール類、アリルアルコール、ベンジルアルコール、アニソール、フェネトール、n−ヘキサン、シクロヘキサン、ヘプタン、オクタン、ノナン、デカン等の炭化水素類、ジアセトンアルコール、3−メトキシ−1−ブタノール、4−メトキシ−1−ブタノール、3−エトキシ−1−ブタノール、3−メトキシ−3−メチル−1−ブタノール、3−メトキシ−3−エチル−1−ペンタノール、4−エトキシ−1−ペンタノール、5−メトキシ−1−ヘキサノール、アセトン、メチルエチルケトン、メチルプロピルケトン、ジエチルケトン、メチルイソブチルケトン、メチルペンチルケトン、メチルヘキシルケトン、エチルブチルケトン、ジブチルケトン、シクロペンタノン、シクロヘキサノン、メチルシクロヘキサノン、γ−ブチロラクトン、3−ヒドロキシ−2−ブタノン、4−ヒドロキシ−2−ブタノン、4−ヒドロキシ−2−ペンタノン、5−ヒドロキシ−2−ペンタノン、4−ヒドロキシ−3−ペンタノン、6−ヒドロキシ−2−ヘキサノン、3−メチル−3−ヒドロキシ−2−ペンタノン等のケトン類、エチレングリコール、ジエチレングリコール、トリエチレングリコール、テトラエチレングリコール、プロピレングリコール、エチレングリコールモノアセテート、エチレングリコールジアセテート、プロピレングリコールモノアセテート、プロピレングリコールジアセテート、エチレングリコールアルキルエーテル類及びそのアセテート(MC、EC、ブチルセロソルブ、フェニルセロソルブ、エチレングリコールジメチルエーテル、エチレングリコールジエチルエーテル、エチレングリコールジブチルエーテル、MCアセテート、ECアセテート)、ジエチレングリコールモノアルキルエーテル類及びそのアセテート(ジエチレングリコールモノメチルエーテル、モノエチルエーテル、モノi−プロピルエーテル、モノブチルエーテル、ジエチレングリコールモノメチルエーテルアセテート等)、ジエチレングリコールジアルキルエーテル類(DMDG、DEDG、DBDG、MEDG)、トリエチレングリコールアルキルエーテル類(モノメチルエーテル、モノエチルエーテル、ジメチルエーテル、ジエチルエーテル、メチルエチルエーテル等)、プロピレングリコールアルキルエーテル類及びそのアセテート(モノメチルエーテル、モノエチルエーテル、n−プロピルエーテル、モノブチルエーテル、ジメチルエーテル、ジエチルエーテル、モノメチルエーテルアセテート、モノエチルエーテルアセテート等)、ジプロピレングリコールアルキルエーテル類(モノメチルエーテル、モノエチルエーテル、n−プロピルエーテル、モノブチルエーテル、ジメチルエーテル、ジエチルエーテル)、ギ酸エチル、ギ酸プロピル、ギ酸ブチル、ギ酸アミル、酢酸メチル、酢酸エチル、酢酸プロピル、酢酸ブチル、プロピオン酸メチル、プロピオン酸エチル、酪酸メチル、酪酸エチル等のカルボン酸エステル類、ジメチルホルムアミド、ジメチルスルホキシド、ジオキサン、テトラヒドロフラン、乳酸メチル、乳酸エチル、安息香酸メチル、安息香酸エチル、炭酸プロピレン等を挙げることができる。これらの溶媒は、単独或いは二種以上を混合して使用できる。
【0078】
アルミニウム支持体の材質としては、純アルミニウム及びアルミニウム合金が好適に使用できる。アルミニウム合金としては種々のものが使用でき、例えば珪素、銅、マンガン、マグネシウム、クロム、亜鉛、鉛、ビスマス、ニッケル、チタン、ナトリウム、鉄等の金属とアルミニウムの合金が用いられる。
【0079】
アルミニウム支持体は、脱脂処理、粗面化処理、陽極酸化処理等の前処理を施すことが好ましい。脱脂処理としては、トリクレン、シンナー等の溶剤を用いる脱脂処理、ケロシンとトリエタノール等のエマルジョンを用いたエマルジョン脱脂処理、苛性ソーダ等のアルカリの水溶液による脱脂処理等を挙げることができる。
脱脂処理に苛性ソーダ等のアルカリの水溶液を用いた場合、上記脱脂処理のみでは除去できない汚れや酸化皮膜も除去することができる。脱脂処理に苛性ソーダ等のアルカリ水溶液を用いた場合、支持体の表面にはスマットが生成するので、この場合には燐酸、硝酸、硫酸、クロム酸等の酸、或いはそれらの混酸に浸漬してデスマット処理を施すことが好ましい。
【0080】
粗面化処理方法としては、機械的に表面を粗面化する、いわゆる機械的粗面化法と、電気化学的に表面を粗面化する、いわゆる電気化学的粗面化法と、アルカリ又は酸或いはそれらの混合物からなるエッチング剤で表面を粗面化する、いわゆる化学的粗面化法がある。また、これらを組み合わせた方法も利用することができる。
【0081】
機械的粗面化法には、例えば、ボール研磨、ブラシ研磨、ブラスト研磨、バフ研磨、ホーニング研磨等の方法がある。この中でも、ブラシ研磨、ホーニング研磨が好ましい。
電気化学的粗面化法には、例えば、塩酸又は硝酸等を含む電解液中で交流或いは直流によって支持体を電解処理する方法である。この内いずれか一つ、若しくは二つ以上の方法を併用することにより、支持体を粗面化することができる。電気化学的粗面化法については、例えば、特公昭48−28123号公報、英国特許第896563号明細書、特開昭53−67507号公報に記載されている方法を用いることができる。
電気化学的粗面化において印加される電圧は、1〜50Vが好ましく、5〜30Vが更に好ましい。電流密度は、10〜200A/dm2 が好ましく、20〜150A/dm2 が更に好ましい。電気量は、100〜2000C/dm2 、好ましくは200〜1500C/dm2 、より好ましくは200〜1000C/dm2 である。温度は、10〜50℃が好ましく、15〜45℃が更に好ましい。塩酸又は硝酸濃度は0.1〜5重量%が好ましい。電解液には、必要に応じて硝酸塩、塩化物、アミン類、アルデヒド類、燐酸、クロム酸、ホウ酸、酢酸、蓚酸等を加えることができる。
【0082】
粗面化処理を二つ以上組み合わせる場合は、各処理の間に酸又はアルカリの水溶液に浸漬して表面をエッチングすることが好ましい。酸としては、例えば、硫酸、過硫酸、弗素、燐酸、硝酸、塩酸等が含まれ、塩基としては、例えば、水酸化ナトリウム、水酸化カリウム等が含まれる。これらの中でもアルカリの水溶液を用いるのが好ましい。これらの酸又はアルカリの0.05〜40重量%水溶液を用い、40〜100℃の液温において5〜300秒処理する。上記をアルカリの水溶液で浸漬処理を行った場合、支持体の表面にはスマットが生成するので、この場合には、燐酸、硝酸、硫酸、クロム酸等の酸、或いはそれらの混酸に浸漬し、デスマット処理を施すことが好ましい。
【0083】
以上説明した粗面化処理によりアルミニウム支持体の表面粗さをJIS B0601−1982で規定された中心線平均粗さRa値で0.1〜1.2μmに制御する。表面粗さが上記範囲から外れると赤外線感光性層と支持体との密着、現像ムラ、耐刷性、解像性、安定性に問題を生じることがある。
【0084】
粗面化処理されたアルミニウム支持体は、次いで陽極酸化処理が施される。陽極酸化処理に用いられる電解液としては、多孔質酸化皮膜を形成するものならば、いかなるものでも使用でき、一般に硫酸、燐酸、蓚酸、クロム酸、スルファミン酸、ベンゼンスルホン酸等或いはこれらの二種類以上を組み合わせた混酸が用いられる。陽極酸化の処理条件は、使用する電解液により種々変化するので一概に特定し得ないが、一般的には、電解液の濃度が1〜80重量%、温度5〜70℃、電流密度1〜60A/dm2 、電圧1〜100V、電解時間10秒〜5分の範囲が適当である。好ましいのは硫酸法で、通常、直流電流で処理が行われるが、交流を用いることもできる。硫酸の濃度は10〜50重量%、温度20〜50℃、電流密度1〜20A/dm2 で20〜250秒間電解処理されるのが好ましい。電解液中にはアルミニウムイオンが含まれているほうが好ましい。
【0085】
アルミニウム支持体は、陽極酸化処理の後、封孔処理を施してもよい。封孔処理としては、熱水処理、沸騰水処理、水蒸気処理、珪酸ソーダ処理、重クロム酸塩水溶液処理、亜硝酸塩処理、酢酸アンモン処理等が挙げられる。
また、場合により更にアルミニウム支持体は、陽極酸化処理後(封孔処理を施した場合は更にその後)、親水化処理を施すこともできる。親水化処理としては、米国特許第3,181,461号明細書に記載のアルカリ金属珪酸塩、米国特許第1,860,426号明細書に記載の親水性セルロース、特開昭60−149491号公報、同63−165183号公報に記載のアミノ酸及びその塩、特開昭60−232998号公報に記載の水酸基を有するアミン類及びその塩、特開昭62−19494号公報に記載の燐酸塩、特開昭59−101651号公報に記載のスルホ基を有するモノマー単位を含む高分子化合物等による処理が挙げられる。
【0086】
更に、感光性平版印刷版を重ねたときの感光性層への擦れ傷を防ぐために、また、現像時、現像液中へのアルミニウム成分の溶出を防ぐために、特開昭50−151136号公報、同57−63293号公報、同60−73538号公報、同61−67863号公報、特開平6−35174号公報等に記載されている、支持体裏面に保護層を設ける処理を行うことができる。支持体の裏面には、意匠を具現化するための任意の模様、図形、文字等及びバーコード等を、インクジェット方式や印刷方式等により形成してもよい。
【0087】
支持体上に設けられる感光性層の厚さは0.3〜10μmの範囲が好ましい。より好ましくは0.5〜8μmの範囲である。感光性層の厚みが上記範囲から外れた場合には、塗膜の均一性、現像性、コスト等の点で問題が生じる場合が多い。
【0088】
感光性層上には保護膜として有機透明膜を設けることができる。保護膜は感光性層の保護ばかりでなく感度の向上や感光性層の安定化にも寄与するため、このような保護膜を設けることは好ましい。
保護膜としてはポリエチレン、ポリプロピレン、ポリエチレンテレフタレート、ポリイミド、ポリアミド、アクリル樹脂、ポリビニルブチラール等のフィルム或いはシートを感光性層上にラミネートすることやポリビニルアルコール、部分ケン化ポリ酢酸ビニル、ポリビニルピロリドン、ゼラチン、セルロース等の水溶性樹脂を塗布することで設けることができる。
これらの保護膜の中では現像時に剥離する必要のない水溶性樹脂が好ましいものである。保護膜の厚さは0.3〜100μmのものを好ましく用いることができる。
【0089】
本発明の感光性印刷版に適用し得る露光光源としては赤外光を発するものであれば特に制限を受けない。好ましいものとしては、半導体レーザーやYAGレーザー等のレーザーが挙げられる。レーザー光として特に好ましいものは、赤外光の波長が780〜1200nmの範囲のものである。
【0090】
本発明の感光性印刷版は、かかる光源にて走査露光を行った後、アルカリを含有する水溶液を用いて現像すれば、支持体上に画像を形成することができる。この現像液には、更に、界面活性剤、有機溶剤、緩衝剤、染料又は顔料を含有することができる。
適当なアルカリ剤としては、ケイ酸ナトリウム、ケイ酸カリウム、ケイ酸アンモニウム、メタケイ酸ナトリウム、メタケイ酸カリウム、水酸化ナトリウム、水酸化カリウム、水酸化リチウム、第三リン酸ナトリウム、第二リン酸ナトリウム、炭酸ナトリウム、炭酸カリウム、重炭酸ナトリウム等の無機アルカリ剤及びトリメチルアミン、ジエチルアミン、モノイソプロピルアミン、n−ブチルアミン、モノエタノールアミン、ジエタノールアミン、トリエタノールアミン等の有機アミン化合物が挙げられ、これらは単独若しくは組み合わせて、0.1〜10重量%程度の水溶液として使用できる。
現像液に界面活性剤を添加するのは好ましく、例えば、ポリオキシエチレンアルキルエーテル類、ポリオキシエチレンアルキルアリルエーテル類、ポリオキシエチレンアルキルエステル類、ソルビタンアルキルエステル類、モノグリセリドアルキルエステル類等のノニオン界面活性剤、アルキルベンゼンスルホン酸塩類、アルキルナフタレンスルホン酸塩類、アルキル硫酸塩類、アルキルスルホン酸塩類、スルホコハク酸エステル塩類等のアニオン界面活性剤、アルキルベタイン類、アミノ酸類等の両面界面活性剤が使用可能である。
また、有機溶剤としては、例えば、イソプロピルアルコール、ベンジルアルコール、エチルセロソルブ、ブチルセロソルブ、フェニルセロソルブ、プロピレングリコール、ジアセトングリコール等を必要により含有させることができる。
【0091】
【実施例】
以下、本発明を実施例及び比較例により更に具体的に説明するが、本発明は、その要旨を越えない限り、これらの実施例により限定されるものではない。
実施例−1
アルカリ可溶性樹脂の合成
酸価200、重量平均分子量5000のスチレン・アクリル酸共重合樹脂20g、p−メトキシフェノール0.2g、ドデシルトリメチルアンモニウムクロリド0.2g、プロピレングリコールモノメチルエーテルアセテート(PGMEA)40gをフラスコに仕込み、(3,4−エポキシシクロヘキシル)メチルアクリレート7.6gを滴下し100℃の温度で30時間反応させた。反応液を水に再沈澱、乾燥させて樹脂を得た。水酸化カリウムによる中和滴定を行ったところ樹脂酸価は80mg・KOH/gであった。また、GPCにより分子量測定を行った結果、重量平均分子量Mwは8000、数平均分子量Mnは3000、分子量分布Mw/Mnは2.7であった。
【0092】
支持体の作製
厚さ0.24mm、JIS1050のアルミニウム板を3%水酸化ナトリウムにて脱脂し、これを11.5g/l塩酸浴中で25℃、80A/dm2 の電流密度で11秒電解エッチングし、水洗後30%硫酸浴中で30℃、11.5A/dm2 の条件で15秒間陽極酸化した。得られた支持体の中心線平均粗さRaを表面粗さ計(サーフコーダー SE−30H 小坂研究所製)にて測定したところ0.6μmであった。
この支持体上に、下記の感光性組成物塗布液をバーコーターを用いて乾燥膜厚2μmとなるように塗布、乾燥した。更にこの上に、ポリビニルアルコール水溶液をバーコーターを用いて乾燥膜厚3μmとなるように塗布、乾燥し感光性平版印刷版を作製した。
【0093】
感光性組成物塗布液
アルカリ可溶性樹脂;合成例−1 100重量部
エチレン性不飽和二重結合化合物
;A−1(但し、R0 =H) 50重量部
;2,2−ビス(4−ヒドロキシフェニル)プロパン
のアクリロイルジエチレンオキシド付加物 50重量部
フタロシアニン化合物;R−16 5重量部
開始剤;B−1 10重量部
界面活性剤;S−381 0.1重量部
シクロヘキサノン 1500重量部
【0094】
画像特性
得られた感光性印刷版を直径10cmのアルミニウム製の回転ドラムに取り付け、感光性層が外側になるよう固定した後、波長830nm、出力40mWの半導体レーザー(日立製作所製「HL8325C」)で感光性層表面を30μのビームスポット径にてドラムを回転させながら露光した。回転速度は5rpmに設定した。
現像は珪酸カリ3重量%、ペレックスNBL5重量%(花王社製界面活性剤)を含有するアルカリ現像液で25℃で1分間ディップして行った。
得られた画像を倍率100倍のルーペにて観察したところ、線幅30μのエッジのシャープな画像が得られた。
一方、非画像部の地汚れは反射吸光度を、フィルターなしの反射濃度計(マクベス社製「RD−514」)を用いて測定し、この値から、感光性組成物塗布前の支持体表面の反射吸光度の値を差し引いた値より、以下の基準で支持体上に残存する地汚れ量を評価した。
【0095】
A;反射吸光度が0.02未満
B;反射吸光度が0.02以上、0.04未満
C;反射吸光度が0.04以上、0.06未満
D;反射吸光度が0.06以上
結果はAであり、非画像部の地汚れはなく良好な現像性を示した。
【0096】
セーフライト性
感光性印刷版を白色蛍光灯で照明された室内に3時間放置した後に前記と同様の条件で露光、現像したところ、白色灯によるカブリは全く見られず、30μのシャープなエッジを有する画像を得ることができ、セーフライト性が良好であることが判った。また、非画像部の地汚れも皆無であった。
【0097】
安定性
感光性印刷版を55℃で3日間放置した後、前記と同様の条件で露光、現像したところ線幅30μのエッジのシャープな画像が得られ、また、地汚れも皆無であった。
【0098】
実施例−2
実施例−1の感光性組成物塗布液においてフタロシアニン化合物をR−11に変えた以外は実施例−1と同様にして画像特性、セーフライト性、安定性を評価した。画像特性は30μのシャープなエッジを有する画像が得られ、非画像部の地汚れもAランクであり良好であった。更にセーフライト性、安定性についても良好であった。
【0099】
実施例−3
実施例−1の感光性組成物塗布液においてエチレン性不飽和二重結合化合物をヘキサメチレンビス〔トリス(アクリロイルオキシメチル)エチルウレタン〕;80重量部、メタクリロイルオキシエチルホスフェートとビス(メタクリロイルオキシエチル)ホスフェートとの1:1混合物;20重量部に変えた以外は実施例−1と同様にして画像特性、セーフライト性、安定性を評価した。画像特性は30μのシャープなエッジを有する画像が得られ、非画像部の地汚れもAランクであり良好であった。更にセーフライト性、安定性についても良好であった。
【0100】
実施例−4
実施例−3の感光性組成物塗布液においてフタロシアニン化合物をR−11に変えた以外は実施例−1と同様にして画像特性、セーフライト性、安定性を評価した。画像特性は30μのシャープなエッジを有する画像が得られ、非画像部の地汚れもAランクであり良好であった。更にセーフライト性、安定性についても良好であった。
【0101】
実施例5
実施例−1の感光性組成物塗布液において開始剤を2−(p−メトキシスチリル)−4,6−ビス(トリクロロエチル)−s−トリアジンに変えた以外は実施例−1と同様にして画像特性、セーフライト性、安定性を評価した。画像特性は30μのシャープなエッジを有する画像が得られ、非画像部の地汚れもAランクであり良好であった。更にセーフライト性、安定性についても良好であった。
【0102】
比較例−1
実施例−1の感光性組成物塗布液においてフタロシアニン化合物をシアニン色素(日本化薬社製「CY−17」)に変えた以外は実施例−1と同じ条件にて感光性印刷版を作製し、実施例−1と同じ評価を行ったところ画像部が現像液に流されてしまい画像は得られなかった。
【0103】
比較例−2
実施例−1の感光性組成物塗布液においてフタロシアニン化合物をシアニン色素(日本化薬社製「CY−10」)に変えた以外は実施例−1と同じ条件にて感光性印刷版を作製し、実施例−1と同じ評価を行ったところ画像部が現像液に流されてしまい画像は得られなかった。
【0104】
比較例−3
実施例−1の感光性組成物塗布液においてエチレン性不飽和二重結合化合物をエチレングリコールジアクリレート(新中村化学社製「9G」)に変えた以外は実施例−1と同じ条件にて感光性印刷版を作製し、実施例−1と同じ評価を行ったところ30μのシャープなエッジを有する画像が形成された。非画像部の地汚れはCランクであり不良であった。また、セーフライトテスト、安定性テストにおいて地汚れがDランクへと更に悪化した。
【0105】
【発明の効果】
本発明の感光性組成物は赤外光に対し高い感光性を有するため半導体レーザー、YAGレーザー等の赤外レーザーにて直接描画可能である。得られる画像の解像性は高く、現像性にも優れ地汚れ等を生じないため印刷版へ応用した場合には高品質の印刷物が得られる。露光作業は白色灯等の明室下で行えるため作業性にも優れる。[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a photosensitive composition and a photosensitive printing plate. Specifically, the present invention relates to an improvement of a photosensitive composition containing a phthalocyanine compound as an infrared absorbing dye and a photosensitive printing plate using the same.
The photosensitive composition of the present invention has high sensitivity to infrared light such as a semiconductor laser and a YAG laser, is excellent in storage stability, has a safelight property under a white light, and further supports a support. Since it has high adhesiveness and developability, it is particularly useful as a photosensitive printing plate.
[0002]
[Prior art]
There is a need for a laser-sensitive material capable of directly forming an image by laser scanning exposure without using a mask such as a silver salt film based on digital information from a computer. In particular, since an infrared laser typified by a semiconductor laser is excellent in output, cost, size, and stability, a material sensitive to such infrared light is strongly demanded.
As such a photopolymerizable composition, for example, a sensitizing dye / unsaturated double bond compound may be a cyanine dye / aromatic polyhydroxy compound or a polyester (meth) acrylate of a polyhydric alcohol (Japanese Patent Laid-Open No. 2-189548) or A sensitizing dye having a squarylium dye (JP-A-2-306247) has been proposed.
[0003]
[Problems to be solved by the invention]
However, for these compositions, the photosensitive wavelength range is wide from visible light to near infrared light, and handling is necessary in a dark room such as a red coral, so there is a problem in workability and storage stability. Since it was insufficient, practical application was difficult. In particular, the adhesiveness of the photosensitive layer to the support is promoted over time, so that it has been difficult to solve the problem that unexposed portions are insufficiently removed during the development processing after image exposure and a residue is generated.
The object of the present invention is excellent in resolution, developability, adhesion, and storage stability, can be drawn directly using infrared light such as a semiconductor laser, and can be handled even in a bright room such as a white light. It is an object of the present invention to provide a novel photosensitive composition and a photosensitive printing plate.
[0004]
[Means for Solving the Problems]
As a result of intensive studies in view of such circumstances, the present inventors have found that a photosensitive composition containing a specific infrared absorbing dye and a specific ethylenically unsaturated double bond compound can solve the conventional problems. The headline and the present invention were completed.
[0005]
That is, the gist of the present invention is that in a photosensitive composition comprising an ethylenically unsaturated double bond compound, an infrared absorbing dye and a polymerization initiator, the infrared absorbing dye is a phthalocyanine compound, and the ethylenically unsaturated dye. A photosensitive composition and an anodized aluminum support, wherein the saturated double bond compound contains at least a (meth) acryloyloxyalkyl group-containing amine compound and / or a (meth) acryloyloxyalkyl group-containing phosphate compound There exists a photosensitive printing plate which has a layer which consists of the said photosensitive composition on it.
[0006]
DETAILED DESCRIPTION OF THE INVENTION
The photosensitive composition of the present invention includes a (meth) acryloyloxyalkyl group-containing amine compound or / and a (meth) acryloyloxyalkyl group-containing phosphate compound as an ethylenically unsaturated double bond compound, and a specific phthalocyanine as an infrared absorbing dye. It is characterized in that it contains a compound. By combining these specific infrared absorbing dyes and ethylenically unsaturated double bond compounds, it has high sensitivity selectively to infrared light, and can impart safe light properties to white light, etc. In addition, there is no change in the adhesion of the photosensitive layer over time, and it is possible to eliminate defects that are particularly problematic during printing, such as background stains.
These components will be described in detail below. In the present invention, “(meth) acryl” means acryl and methacryl.
[0007]
The (meth) acryloyloxyalkyl group-containing amine compound used in the present invention refers to an amine compound having a (meth) acryloyloxyalkyl partial structure, of which an alkylamine structure is a basic skeleton, and a (meth) acryloyloxyalkyl Those having a partial structure are preferred. Specific examples thereof include, for example, JP-A-49-36614, JP-A-50-129214, JP-A-61-151197, JP-A-6-65218. JP-A-6-35189, Japanese Patent No. 2700188, West German Patent No. 3710281, and the like can be mentioned. Of these, those represented by the following general formula (I) are preferred.
[0008]
[Chemical 3]
[0009]
(Wherein R0Represents a hydrogen atom or a methyl group, each Q independently represents a hydrogen atom, an optionally substituted alkyl group or an optionally substituted carbamoyl group, and the alkyl groups are directly Or i may be an integer from 1 to 12, j is an integer from 0 to 5, k is an integer from 2 to 12, m is 0 or 1. n is 0 or 1, o is an integer of 1 to 5, and p is an integer of 1 to 3. However, when p = 1, at least one of the remaining two Qs is an alkyl group having a (meth) acryloyloxyalkyl group or a carbamoyl group having a (meth) acryloyloxyalkyl group, and p = 2 (In some cases, the remaining Q represents a hydrogen atom, an alkyl group which may have a substituent, or a carbamoyl group which may have a substituent.)
[0010]
In the formula (I), when Q is an alkyl group which may have a substituent, the carbon number thereof is usually 1 to 15, preferably 1 to 5, and specific examples thereof include a methyl group, Ethyl group, hydroxyethyl group, acetoxyethyl group, N- (meth) acryloyloxyethyl-carbamoyl-oxymethyl group, N- (meth) acryloyloxyethyl-carbamoyl-oxyethyl group, N- (meth) acryloyloxyethyl-carbamoyl -An oxypropyl group etc. are mentioned.
[0011]
When the alkyl groups are linked to each other directly or via a nitrogen atom, it is preferable to form a piperidyl ring or piperazyl ring as the ring. When Q is a carbamoyl group which may have a substituent, specific examples thereof include N- (meth) acryloyloxyethyl-carbamoyl group.
I is preferably 1 to 3, j is preferably 0 or 1, o is preferably 1 to 3, and k is preferably 2 to 6.
And as a specific example of the compound of a formula (I), the compound of the following A-1 to A-14 can be illustrated, for example. R in each specific example0Represents a hydrogen atom or a methyl group.
[0012]
[Formula 4]
[0013]
[Chemical formula 5]
[0014]
[Chemical 6]
[0015]
The (meth) acryloyloxyalkyl group-containing phosphate compound used in the present invention refers to a phosphate compound having a (meth) acryloyloxyalkyl partial structure, and those represented by the following general formula (II) are particularly preferred.
[0016]
[Chemical 7]
[0017]
(Wherein R0Represents a hydrogen atom or a methyl group, R1And R2Each independently represents a hydrogen atom or an alkyl group, d is an integer of 1 to 25, and e is 1 or 2.
[0018]
In the formula (II), R1And R2Is an alkyl group, the carbon number is usually 1-15, preferably 1-5, preferably a hydrogen atom, and d is preferably in the range of 1-10. Specific examples include methacryloyloxyethyl phosphate, bis (methacryloyloxyethyl) phosphate, and the like.
[0019]
For the composition of the present invention, in addition to these essential ethylenically unsaturated double bond compounds, for example, the following monomers may be used in combination. By using other types of monomers in combination, characteristics such as tackiness can be improved, and it is desirable to use them in combination. If the monomer which can be used together is shown as a specific example, for example, unsaturated carboxylic acid (for example, acrylic acid, methacrylic acid, itaconic acid, crotonic acid, isocrotonic acid, maleic acid, etc.) and aliphatic, aromatic, alicyclic , Esters with polyhydric alcohol compounds such as heterocycles, amides with unsaturated carboxylic acids and aliphatic, aromatic and other polyvalent amine compounds, unsaturated alcohols and aliphatic, aromatic, alicyclic isocyanate compounds And esters of urethane, unsaturated carboxylic acid and aliphatic, aromatic, alicyclic and heterocyclic epoxy compounds.
[0020]
Specific examples of esters of polyhydric alcohol compounds and unsaturated carboxylic acids include acrylic acid esters such as ethylene glycol diacrylate, triethylene glycol diacrylate, 1,3-butanediol diacrylate, tetramethylene glycol diacrylate, and propylene. Glycol diacrylate, neopentyl glycol diacrylate, trimethylolpropane triacrylate, trimethylolpropane tri (acryloyloxypropyl) ether, trimethylolethane triacrylate, hexanediol diacrylate, 1,4-cyclohexanediol diacrylate, tetraethylene glycol Diacrylate, pentaerythritol diacrylate, pentaerythritol triacrylate, pentaerythris Examples include tall tetraacrylate, dipentaerythritol diacrylate, dipentaerythritol hexaacrylate, sorbitol triacrylate, sorbitol tetraacrylate, sorbitol pentaacrylate, sorbitol hexaacrylate, tri (acryloyloxyethyl) isocyanurate, and polyester acrylate oligomers. .
[0021]
Methacrylic acid esters include tetramethylene glycol dimethacrylate, triethylene glycol dimethacrylate, neopentyl glycol dimethacrylate, trimethylolpropane trimethacrylate, trimethylolethane trimethacrylate, ethylene glycol dimethacrylate, 1,3-butanediol dimethacrylate, Hexanediol dimethacrylate, pentaerythritol dimethacrylate, pentaerythritol trimethacrylate, pentaerythritol tetramethacrylate, dipentaerythritol dimethacrylate, dipentaerythritol hexamethacrylate, sorbitol trimethacrylate, sorbitol tetramethacrylate, bis [p- (3-methacryloyloxy- 2-hydroxy Propoxy) phenyl] dimethyl methane, and bis [p- (methacryloyloxy ethoxy) phenyl] dimethyl methane.
[0022]
Examples of itaconic acid esters include ethylene glycol diitaconate, propylene glycol diitaconate, 1,3-butanediol diitaconate, tetramethylene glycol diitaconate, pentaerythritol diitaconate, sorbitol tetritaconate, and the like. it can.
[0023]
Examples of crotonic acid esters include ethylene glycol dicrotonate, tetramethylene glycol dicrotonate, pentaerythritol dicrotonate, and sorbitol tetracrotonate. Examples of isocrotonic acid esters include ethylene glycol diisocrotonate, pentaerythritol diisocrotonate, and sorbitol tetraisocrotonate.
[0024]
Examples of maleic acid esters include ethylene glycol dimaleate, triethylene glycol dimaleate, pentaerythritol dimaleate, and sorbitol tetramaleate. Furthermore, the mixture of the above-mentioned ester monomer can also be mentioned.
[0025]
Specific examples of amide monomers of polyvalent amine compounds and unsaturated carboxylic acids include methylene bis-acrylamide, methylene bis-methacrylamide, 1,6-hexamethylene bis-acrylamide, 1,6-hexamethylene bis-methacrylamide, Examples include diethylenetriamine trisacrylamide, xylylene bisacrylamide, and xylylene bismethacrylamide.
[0026]
Urethane compounds include aromatic diisocyanates such as paraphenylene diisocyanate, 2,4-tolylene diisocyanate, 2,6-tolylene diisocyanate, 4,4′-diphenylmethane diisocyanate, naphthalene-1,5-diisocyanate, tolidine diisocyanate, hexa Aliphatic diisocyanates such as methylene diisocyanate, lysine methyl ester diisocyanate, 2,4,4-trimethylhexamethylene diisocyanate, dimer acid diisocyanate, isophorone diisocyanate, 4,4′-methylenebis (cyclohexyl isocyanate), ω, ω′-diisocyanate dimethylcyclohexane Such as alicyclic diisocyanate, xylylene diisocyanate, α, α, α ′, α′-tetramethylxylylene diisocyanate Aliphatic diisocyanate having an aromatic ring such as cyanate, lysine ester triisocyanate, 1,6,11-undecane triisocyanate, 1,8-diisocyanate-4-isocyanate methyloctane, 1,3,6-hexamethylene triisocyanate, bicyclo To triisocyanates such as heptane triisocyanate, tris (isocyanatephenylmethane), tris (isocyanatephenyl) thiophosphate, hydroxymethyl (meth) acrylate, hydroxyethyl (meth) acrylate, pentaerythritol tri (meth) acrylate, dipentaerythritol penta ( (Meth) acrylate, 2-hydroxy-3-acryloyloxypropyl (meth) acrylate, ditrimethylolpropane tri (meth) acrylate Rate, it may be mentioned compounds obtained by reacting isocyanuric acid alkylene oxide adduct di (meth) acrylate, acrylic compound having a hydroxyl group such as pentaerythritol di (meth) acrylate monostearate.
[0027]
Examples of the ester of an unsaturated carboxylic acid and an epoxy compound include a compound obtained by adding an α, β-unsaturated carboxylic acid to an epoxy compound having an epoxy ring such as a glycidyl group or an alicyclic epoxy group.
As the epoxy compound, the base skeleton to which the epoxy ring is bonded is aliphatic, aromatic, hetero ring, or various epoxy compounds having a structure in which these are mixed, and examples of the aromatic epoxy compound include phenol. Examples include novolak epoxy compounds, (o, m, p) -cresol novolac epoxy compounds, bisphenol-A epoxy compounds, bisphenol-F epoxy compounds, and halogenated epoxy compounds such as brominated phenol novolac epoxy compounds. These compounds may be low molecular weight compounds, oligomers or polymers that become resins.
[0028]
Examples of the aliphatic epoxy compound include sorbitol polyglycidyl ether, sorbitan polyglycidyl ether, (poly) glycerol polyglycidyl ether, trimethylolpropane polyglycidyl ether, neopentyl glycol diglycidyl ether, hexanediol diglycidyl ether, (poly) ethylene Examples include glycol diglycidyl ether, (poly) propylene glycol diglycidyl ether, (poly) tetramethylene glycol diglycidyl ether, and (poly) pentamethylene glycol diglycidyl ether.
Examples of the epoxy compound having a heterocyclic structure include triglycidyl isocyanurate and triglycidyl tris (2-hydroxyethyl) isocyanurate.
Examples of the alicyclic epoxy compound include Celoxide 2021, 2080, 3000, 2000, Epolide GT300, GT400 manufactured by Daicel Chemical Industries.
Furthermore, modified epoxy acrylates further modified with acid anhydrides such as maleic anhydride and tetrahydrophthalic anhydride can also be preferably used.
[0029]
The phthalocyanine compound used as an infrared absorbing dye is a compound having an absorption maximum in the range of 650 nm to 1300 nm, more preferably 750 nm to 1200 nm, and a compound having a phthalocyanine basic skeleton represented by the following formula (III) or (IV): is there. A phthalocyanine compound in which a substituent is introduced into an aromatic ring having the following basic skeleton in order to improve light absorption characteristics and solubility.
[0030]
[Chemical 8]
[0031]
[In the formula, M represents a metal element forming a phthalocyanine complex salt, the aromatic ring may have a substituent, the substituents may be connected to each other to form a condensed ring, and the condensed ring You may have a substituent. ]
[0032]
Examples of the central metal M include alkali metals (Ia), ants, earth metals (IIa), IIIb groups, IVb groups, Vb groups, VIb groups, VIIb groups, VIIIb groups, Ib groups, IIb groups, IIIa groups, IVa groups. , Various metals of group Va, lanthanides, actinides.
As substituents of aromatic rings and condensed rings, alkyl groups, alkoxy groups, alkoxyalkyl groups, aryl groups, halogen atoms, nitro groups, cyano groups, amino groups, alkoxycarbonyl groups, vinyl groups, carboxyl groups, acryloyl groups, thioether groups The plurality of substituents may be the same or different.
[0033]
Examples of such compounds include JP-A No. 64-60660, JP-A No. 1-110091, JP-A No. 3-11247, JP-A No. 4-15263, JP-A No. 4-15264, JP-A-4-15265, JP-A-4-15266, phthalocyanine compounds, JP-A-2-138382, alkyl-phthalocyanine compounds, JP-A-3-77840, JP-A-3-100066 The acyloxyphthalocyanine compound described in JP-A-4-348168, the alkoxyphthalocyanine compound described in JP-A-4-348168, JP-A-60-23451, JP-A-61-215662, JP-A-61-215663, Japanese Unexamined Patent Publication No. 63-270765, Japanese Unexamined Patent Publication No. 1-287175, Japanese Unexamined Patent Publication No. 2-4326 Japanese Patent Laid-Open No. 2-29685, Japanese Patent Laid-Open No. 3-43461, Japanese Patent Laid-Open No. 3-265664, Japanese Patent Laid-Open No. 3-265665, Japanese Patent Laid-Open No. 1-108264, The dinaphthalocyanine compounds described in JP-A-1-108265, JP-A-10-182959, JP-A-10-120927, JP-A-9-202860, JP-A-8-325468, JP-A-8-225751 And halogen-containing phthalocyanine compounds described in JP-A-8-120186.
[0034]
Among the above, complex salts of the formula (IV), in which the central metal M is IIb group such as zinc, IVb group such as tin, IIIb group such as aluminum and gallium, Ib group such as copper, and Va group such as vanadium. Among them, IIb group and IVb group complex salts, particularly zinc or tin complex salts are preferred. In addition, from the viewpoint of solubility of the phthalocyanine compound, a compound in which at least one aromatic ring has a substituent is preferable. As the substituent, an alkyl group having 1 to 6 carbon atoms, an alkoxy group having 1 to 6 carbon atoms, or a carbon number It has either a 2-8 alkoxyalkyl group or a halogen atom, or a substituent is connected to each other to form a naphthalocyanine structure, and an alkyl group having 1-6 carbon atoms, 1-6 carbon atoms And a compound having a substituent of any one of an alkoxyalkyl group having 2 to 8 carbon atoms and a halogen atom.
[0035]
Specific chemical structure is the absorption maximum (λmax) And absorption maxima (λmaxFor example, the following R-1 to R-21 compounds may be mentioned together with the molar extinction coefficient (ε) of In the following examples, Me represents a methyl group, Et represents an ethyl group, Bu represents a butyl group, and Ph represents a phenyl group.
[0036]
[Chemical 9]
[0037]
Embedded image
[0038]
Embedded image
[0039]
Embedded image
[0040]
Embedded image
[0041]
Embedded image
[0042]
Embedded image
[0043]
Embedded image
[0044]
Embedded image
[0045]
Embedded image
[0046]
Embedded image
[0047]
The absorption maximum (λmax) Is obtained by dissolving the above compound in an organic solvent used as a coating solvent and measuring with a spectrophotometer. Examples of such organic solvents include halogenated hydrocarbons such as dichloromethane, chloroform, carbon tetrachloride and tetrachloroethylene, ethers such as tetrahydrofuran and diethyl ether, ketones such as acetone, methyl ethyl ketone and cyclohexanone, alcohols such as methanol, ethanol and propanol. And glycol ethers such as methyl cellosolve, ethyl cellosolve, propylene glycol monomethyl ether and propylene glycol monoethyl ether, and hydrocarbons such as benzene, toluene and xylene.
[0048]
Preferable phthalocyanine compounds listed above have an absorption maximum in the range of ± 50 nm with respect to the laser irradiation wavelength.
The molar extinction coefficient (ε) is 10,000 or more, preferably 20000 or more, more preferably 30000 or more.
Absorption maximum (λmax), When the extinction coefficient (ε) deviates from the above range, there is a tendency that sufficient sensitivity cannot be obtained.
[0049]
The polymerization initiator is not particularly limited as long as it is a compound capable of generating radical species capable of polymerizing an unsaturated double bond compound by irradiation with actinic rays.
Examples of such compounds are:
(A) Compound having carbon halogen bond
(B) Carbonyl compound
(C) Organic peroxide compound
(D) Hexaarylbiimidazole compound
(E) Borate compound
(F) Metallocene compound
Etc.
[0050]
A preferable compound having a carbon-halogen bond is a triazine having a halomethyl group. For example, Wakabayashi et al., Bull. Chem. Soc. Japan, 42, 2924 (1969), for example, 2-phenyl-4,6-bis (trichloromethyl) -s-triazine, 2- (p-chlorophenyl) -4,6-bis (trichloromethyl) -s-triazine, 2- (p-tolyl) -4,6-bis (trichloromethyl) -s-triazine, 2- (p-methoxyphenyl) -4,6- Bis (trichloromethyl) -s-triazine, 2- (2 ′, 4′-dichlorophenyl) -4,6-bis (trichloromethyl) -s-triazine, 2,4,6-tris (trichloromethyl) -s— Triazine, 2-methyl-4,6-bis (trichloromethyl) -s-triazine, 2-n-nonyl-4,6-bis (trichloromethyl) -s-triazine, 2- (α, α, β-trichloro Ethyl) -4,6-bis (trichloromethyl) -s-triazine. In addition, compounds described in GB 1388492, for example, 2-styryl-4,6-bis (trichloromethyl) -s-triazine, 2- (p-methylstyryl) -4,6-bis (trichloromethyl) ) -S-triazine, 2- (p-methoxystyryl) -4,6-bis (trichloromethyl) -s-triazine, 2- (p-methoxystyryl) -4-amino-6-trichloromethyl-s-triazine Compounds described in JP-A-53-133428, such as 2- (4-methoxy-naphth-1-yl) -4,6-bis (trichloromethyl) -s-triazine, 2- (4-ethoxy) -Naphth-1-yl) -4,6-bis (trichloromethyl) -s-triazine, 2- [4- (2-ethoxyethyl) naphth-1-yl] -4,6-bis (to Chloromethyl) -s-triazine, 2- (4,7-dimethoxynaphth-1-yl) -4,6-bis (trichloromethyl) -s-triazine, 2- (acenaphtho-5-yl) -4,6 -Bis (trichloromethyl) -s-triazine and the like, and compounds described in FC Schaefer et al., J. Org. Chem., 29, 1527 (1964), such as 2-methyl-4,6-bis (tribromomethyl) ) -S-triazine, 2,4,6-tris (tribromomethyl) -s-triazine, 2,4,5-tris (dibromomethyl) -s-triazine, 2-amino-4-methyl-6-tri Examples include bromomethyl-s-triazine and 2-methoxy-4-methyl-6-trichloromethyl-s-triazine.
[0051]
Examples of the carbonyl compound include benzophenone, Michler ketone, 2-methylbenzophenone, 3-methylbenzophenone, 4-methylbenzophenone, 2-chlorobenzophenone, 4-bromobenzophenone, 2-carboxybenzophenone and other benzophenone derivatives, 2,2-dimethoxy-2 -Phenylacetophenone, 2,2-diethoxyacetophenone, 1-hydroxycyclohexyl phenyl ketone, α-hydroxy-2-methylphenylpropanone, 1-hydroxy-1-methylethyl- (p-isopropylphenyl) ketone, 1-hydroxy -1- (p-dodecylphenyl) ketone, 2-methyl- (4 ′-(methylthio) phenyl) -2-morpholino-1-propanone, 1,1,1-trichloromethyl- (p-butylphenyl) Acetophenone derivatives such as thioxanthone, thioxanthone, 2-ethylthioxanthone, 2-isopropylthioxanthone, 2-chlorothioxanthone, 2,4-dimethylthioxanthone, 2,4-diethylthioxanthone, thioxanthone derivatives such as 2,4-diisopropylthioxanthone, p- Examples thereof include benzoic acid ester derivatives such as ethyl dimethylaminobenzoate and ethyl p-diethylaminobenzoate.
[0052]
Examples of the organic peroxide include methyl ethyl ketone peroxide, cyclohexanone peroxide, 3,3,5-trimethylcyclohexanone peroxide, methylcyclohexanone peroxide, acetylacetone peroxide, 1,1-bis (tert-butylperoxy) -3, 3,5-trimethylcyclohexane, 1,1-bis (tert-butylperoxy) cyclohexane, 2,2-bis (tert-butylperoxy) butane, tert-butyl hydroperoxide, cumene hydroperoxide, diisopropylbenzene hydro Peroxide, p-menthane hydroperoxide, 2,5-dimethylhexane-2,5-dihydroperoxide, 1,1,3,3-tetramethylbutyl hydroperoxide, di-tert-butyl Oxide, tert-butylcumyl peroxide, dicumyl peroxide, bis (tert-butylperoxyisopropyl) benzene, 2,5-dimethyl-2,5-di (tert-butylperoxy) hexane, succinic peroxide, Benzoyl peroxide, 2,4-dichlorobenzoyl peroxide, m-toluoyl peroxide, diisopropyl peroxydicarbonate, di-2-ethylhexyl peroxydicarbonate, di-2-ethoxyethyl peroxydicarbonate, dimethoxyisopropyl peroxide Oxydicarbonate, bis (3-methyl-3-methoxybutyl) peroxydicarbonate, tert-butyl peroxyacetate, tert-butyl peroxypivalate, tert-butyl peroxyneodecanoate, tert-butyl peroxy Oh Toate, tert-butylperoxy-3,5,5-trimethylhexanoate, tert-butylperoxylaurate, 3,3 ′, 4,4′-tetra (t-butylperoxycarbonyl) benzophenone, 3, 3 ′, 4,4′-tetra (aminoperoxycarbonyl) benzophenone, 3,3 ′, 4,4′-tetra (t-hexylperoxycarbonyl) benzophenone, 3,3 ′, 4,4′-tetra ( t-octylperoxycarbonyl) benzophenone, 3,3 ′, 4,4′-tetra (cumylperoxycarbonyl) benzophenone, 3,3 ′, 4,4′-tetra (p-isopropylcumylperoxycarbonyl) benzophenone, Carbonylbis (t-butylperoxydihydrogen diphthalate), Carbonylbis (t-hexylperoxydiphthalate) Motoni phthalate), and the like.
[0053]
Examples of hexaarylbiimidazole compounds include 2,2′-bis (o-chlorophenyl) -4,4 ′, 5,5′-tetraphenylbiimidazole, 2,2′-bis (o-bromophenyl) -4, 4 ′, 5,5′-tetraphenylbiimidazole, 2,2′-bis (o, p-dichlorophenyl) -4,4 ′, 5,5′-tetraphenylbiimidazole, 2,2′-bis (o -Chlorophenyl) -4,4 ', 5,5'-tetra (m-methoxyphenyl) biimidazole, 2,2'-bis (o, p-dichlorophenyl) -4,4', 5,5'-tetraphenyl Biimidazole, 2,2′-bis (o-nitrophenyl) -4,4 ′, 5,5′-tetraphenylbiimidazole, 2,2′-bis (o-methylphenyl) -4,4 ′, 5 , 5'-Tetraf Two biimidazole, 2,2'-bis (o-fluorophenyl) -4,4 ', 5,5'-tetraphenyl biimidazole.
[0054]
Examples of the borate compound include organoboron ammonium described in JP-A-9-188686, JP-A-9-18885, JP-A-9-188710, JP-A-9-106242, and JP-A-8-217813. Complexes, organic boron sulfonium complexes or organic boron oxosulfonium complexes described in JP-A-6-157623, JP-A-6-175564, JP-A-6-175561, JP-A-6-175554, JP-A-6 Organoboron iodonium complexes described in JP-A-175553, organoboron phosphonium complexes described in JP-A-9-188710, JP-A-6-348011, JP-A-7-128785, JP-A-7-140589 JP-A-7-306527, JP-A-7-2920 Organoboron transition metal coordination complexes such as 4 JP can be cited as a specific example, a specific structure may be mentioned for example the following.
A preferred organoboron complex is a compound having a basic structure represented by the following formula (V).
[0055]
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[0056]
(Wherein RThree, RFour, RFiveAnd R6Each independently represents an alkyl group which may have a substituent, an aryl group which may have a substituent, an aralkyl group which may have a substituent, or an alkaryl group which may have a substituent. , An alkenyl group which may have a substituent, an alkynyl group which may have a substituent, an alicyclic group which may have a substituent, or a heterocyclic group which may have a substituent , These may be connected to each other to form a cyclic structure, and X+Represents a counter cation group)
[0057]
Where RThree, RFour, RFiveAnd R6As the alkyl group and alicyclic group, those having 1 to 10 carbon atoms, alkenyl groups and alkynyl groups having 1 to 15 carbon atoms, aryl groups, aralkyl groups, and As the alkaryl group, those having 6 to 20 carbon atoms are preferable, and as the aryl group, a phenyl group is particularly preferable. Examples of the substituent include an alkyl group, an alkoxy group, a carboxy group, an acyloxy group, an alkoxycarbonyl group, a hydroxy group, an amino group, an alkylamino group, a halogenated alkyl group, or a halogen atom. Particularly preferred.
[0058]
R from the viewpoint of stability and high polymerization activityThree, RFour, RFiveAnd R6Among them, a triarylalkyl boron complex in which three of them may have a substituent and one of them may be an alkyl group which may have a substituent is preferable.
Also preferred are those in which aryl groups bonded to boron have chemical bonds as described below. Here, R is an alkyl group.
[0059]
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[0060]
Specific examples of preferable anions in these organoboron complexes include, for example, n-butyl-triphenylboron anion, n-butyl-tris (p-methylphenyl) boron anion, n-butyl-tris (2, 4, 6 -Trimethylphenyl) boron anion, n-butyl-tris (p-methoxyphenyl) boron anion, n-butyl-tris (m-chlorophenyl) boron anion, n-butyl-tris (p-chlorophenyl) boron anion, n-butyl -Tris (m-fluorophenyl) boron anion, n-butyl-tris (p-fluorophenyl) boron anion, n-butyl-tris (2,6-difluorophenyl) boron anion, n-butyl-tris (2,4 , 6-Trifluorophenyl) boron anion, n-butyl Tris (2,3,4,5,6-pentafluorophenyl) boron anion, n-butyl-tris (m-trifluoromethylphenyl) boron anion, n-butyl-tris (3,5-di-trifluoromethyl) Phenyl) boron anion, n-butyl-tris (2,6-difluoro-3-pyrrolylphenyl) boron anion, n-hexyl-tris (m-fluorophenyl) boron anion, and the like.
[0061]
As the counter cation group, those having absorption in the visible light region such as the cationic dyes described in JP-A-62-143044 and JP-A-62-154024 are inferior from the viewpoint of stability. Those having no absorption in the region are preferred. Examples thereof include onium cation groups such as ammonium, phosphonium, arsonium, stibonium, oxonium, sulfonium, selenonium, stannonium, iodonium, transition metal coordination cation complexes, and the like. Among these, an ammonium cation is preferable, and a tetraalkyl (C1-10) ammonium cation is particularly preferable.
[0062]
Examples of specific structures include the following compounds. In the following examples, Me represents a methyl group, Et represents an ethyl group, and Bu represents a butyl group.
[0063]
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[0064]
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[0065]
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[0066]
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[0067]
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[0068]
Examples of the metallocene compound include JP-A-59-152396, JP-A-61-151197, JP-A-63-41484, JP-A-2-249, JP-A-2-4705, Various titanocene compounds described in JP-A-5-83588 such as di-cyclopentadienyl-Ti-bis-phenyl, di-cyclopentadienyl-Ti-bis (2,6-difluorophen-1-yl), di -Cyclopentadienyl-Ti-bis (2,4-difluorophen-1-yl), di-cyclopentadienyl-Ti-bis (2,4,6-trifluorophen-1-yl), di- Cyclopentadienyl-Ti-bis (2,3,5,6-tetrafluorophen-1-yl), di-cyclopentadienyl-Ti-bis (2,3,4,5,6-penta (Luurophen-1-yl), di (methylcyclopentadienyl) -Ti-bis (2,6-difluorophen-1-yl), di (methylcyclopentadienyl) -Ti-bis (2,4,6 -Trifluorophen-1-yl), di (methylcyclopentadienyl) -Ti-bis (2,3,5,6-tetrafluorophen-1-yl), di (methylcyclopentadienyl) -Ti -Bis (2,3,4,5,6-pentafluorophen-1-yl) and the like. Further, iron-arene complexes described in JP-A-1-304453 and JP-A-1-152109 are also suitable.
Particularly preferred among the photopolymerization initiators listed above are compounds having a carbon halogen bond and borate compounds. A borate compound is particularly preferable.
[0069]
In addition to the essential components described above, an alkali-soluble resin is preferably contained as a binder resin in terms of alkali developability and coating film characteristics.
Alkali-soluble resins are insoluble in water and are soluble in dilute aqueous alkali solutions. Examples of such a property include resins having phenolic hydroxyl groups and alkoxyl groups.
As a resin having a phenolic hydroxyl group, a phenol resin, a novolak resin, a resole resin, a phenolic hydroxyl group and an ethylenically unsaturated group obtained by condensation polymerization of a phenol derivative with formaldehyde, paraformaldehyde, acetaldehyde, acetone, or the like under acidic or alkaline conditions And a polyvinyl phenol resin obtained by radically or ionically polymerizing a monomer having the above.
[0070]
Various phenol derivatives such as phenol, (o, m, p-) cresol, xylenol, resol, pyrogallol, bisphenol can be used.
On the other hand, as a resin having a carboxyl group, a resin obtained by radically or ionically polymerizing an unsaturated carboxylic acid alone or with another copolymerization monomer, an acid anhydride having an unsaturated group is polymerized, and the acid anhydride portion is half-esterified. Examples thereof include a resin having a carboxyl group added by adding an acid anhydride to an OH group moiety such as an epoxy resin or an epoxy acrylate.
[0071]
Among the resins listed above, a resin having a carboxyl group is preferable because of its high developability, and among them, a resin obtained by polymerizing an unsaturated carboxylic acid is preferable from the viewpoint of ease of synthesis, cost, and the like.
Examples of the unsaturated carboxylic acid include (meth) acrylic acid, itaconic acid, crotonic acid, maleic acid, fumaric acid and the like. Among them, an acrylic resin containing (meth) acrylic acid is preferable. It is also possible to use a homopolymerized resin, but styrene, α-methylstyrene, vinylphenol, (meth) acrylic acid methyl ester, (meth) acrylic acid ethyl ester, (meth) acrylic acid propyl ester, (meth ) Acrylic acid butyl ester, (meth) acrylic acid pentyl ester, (meth) acrylic acid hexyl ester, (meth) acrylic acid dodecyl ester, (meth) acrylic acid benzyl ester, (meth) acrylic acid 2-ethylhexyl ester, (meth ) Acrylic copolymer resin obtained by copolymerizing monomers such as hydroxymethyl ester of acrylic acid, hydroxyethyl ester of (meth) acrylic acid, acrylonitrile, vinyl acetate, acrylamide, N-methylolacrylamide, glycidyl ester of (meth) acrylic acid It is more preferable.
[0072]
Specific examples of the copolymer include methyl methacrylate / methacrylic acid copolymer described in JP-A-60-208748, and methyl methacrylate / methyl acrylate / methacrylic described in JP-A-60-214354. Acid copolymer, benzyl methacrylate / methyl methacrylate / methacrylic acid / 2-ethylhexyl acrylate copolymer described in JP-A-5-36581, methyl methacrylate / n-methacrylic acid n- described in JP-A-5-333542 Butyl / 2-ethylhexyl acrylate / methacrylic acid copolymer, styrene / methyl methacrylate / methyl acrylate / methacrylic acid copolymer described in JP-A-7-261407, methacrylic acid described in JP-A-10-110008 Methyl / n-butyl acrylate / acrylic acid 2-ethyl Hexyl / methacrylic acid copolymer, it may be mentioned JP-A methyl methacrylate / acrylic acid n- butyl 10-198031 JP / 2-ethylhexyl acrylate / styrene / methacrylic acid copolymers.
[0073]
The preferred molecular weight of the alkali-soluble resin is in the range of 1000 to 400,000 in terms of polystyrene-equivalent weight average molecular weight measured by gel permeation chromatography (GPC). Moreover, the preferable content of acidic groups, such as a phenolic hydroxyl group and a carboxyl group, contained in the resin is in the range of 20 to 500 mg · KOH / g as an acid value determined by neutralization titration with caustic potash. If it is out of this range, problems may occur in terms of developability and coating characteristics.
[0074]
The preferable blending ratio of the photosensitive composition described above is 0.01 to 30 parts by weight, more preferably 0.05 to 25 parts by weight of the infrared absorbing dye with respect to 100 parts by weight of the ethylenically unsaturated double bond compound. Parts and a polymerization initiator are 0.01-30 weight part, More preferably, it is the range of 0.05-25 weight part. The blending ratio of the infrared absorbing dye and the polymerization initiator is preferably in the range of 0.1 to 10 parts by weight of the polymerization initiator with respect to 1 part by weight of the infrared absorbing dye.
[0075]
The (meth) acryloyloxyalkyl group-containing amine compound and / or the (meth) acryloyloxyalkyl group-containing phosphate compound is 1 to 100% by weight, preferably 2 to 90% by weight, more preferably 3 to 80% in the ethylenically unsaturated compound. It may be in the range of% by weight.
Furthermore, when it contains alkali-soluble resin, it is good to set it as the range of 50-600 weight part, More preferably, it is 50-500 weight part.
[0076]
Next, preparation of the photosensitive printing plate will be described. For the photosensitive printing plate, a photosensitive solution obtained by dissolving the above-described photosensitive composition in an organic solvent may be applied on an aluminum support and dried. Although it does not restrict | limit especially as an application | coating method, For example, well-known application | coating, such as spin coating, wire bar coating, dip coating, air knife coating, spray coating, air spray coating, electrostatic air spray coating, roll coating, blade coating, and curtain coating The method can be used.
[0077]
Solvents for dissolving the photosensitive composition include aliphatic alcohols such as methanol, ethanol, n-propanol, i-propanol, n-butanol, n-pentanol, hexanol, allyl alcohol, benzyl alcohol, anisole, phenetole, Hydrocarbons such as n-hexane, cyclohexane, heptane, octane, nonane, decane, diacetone alcohol, 3-methoxy-1-butanol, 4-methoxy-1-butanol, 3-ethoxy-1-butanol, 3-methoxy -3-methyl-1-butanol, 3-methoxy-3-ethyl-1-pentanol, 4-ethoxy-1-pentanol, 5-methoxy-1-hexanol, acetone, methyl ethyl ketone, methyl propyl ketone, diethyl ketone, Methyl isobutyl ketone, Tylpentyl ketone, methyl hexyl ketone, ethyl butyl ketone, dibutyl ketone, cyclopentanone, cyclohexanone, methyl cyclohexanone, γ-butyrolactone, 3-hydroxy-2-butanone, 4-hydroxy-2-butanone, 4-hydroxy-2- Ketones such as pentanone, 5-hydroxy-2-pentanone, 4-hydroxy-3-pentanone, 6-hydroxy-2-hexanone, 3-methyl-3-hydroxy-2-pentanone, ethylene glycol, diethylene glycol, triethylene glycol , Tetraethylene glycol, propylene glycol, ethylene glycol monoacetate, ethylene glycol diacetate, propylene glycol monoacetate, propylene glycol diacetate, ethylene glycol Alkyl ethers and acetates thereof (MC, EC, butyl cellosolve, phenyl cellosolve, ethylene glycol dimethyl ether, ethylene glycol diethyl ether, ethylene glycol dibutyl ether, MC acetate, EC acetate), diethylene glycol monoalkyl ethers and acetate thereof (diethylene glycol monomethyl) Ether, monoethyl ether, mono i-propyl ether, monobutyl ether, diethylene glycol monomethyl ether acetate, etc.), diethylene glycol dialkyl ethers (DMDG, DEDG, DBDG, MEDG), triethylene glycol alkyl ethers (monomethyl ether, monoethyl ether, Dimethyl ether, diethyl ether, methyl ether Ethers), propylene glycol alkyl ethers and acetates thereof (monomethyl ether, monoethyl ether, n-propyl ether, monobutyl ether, dimethyl ether, diethyl ether, monomethyl ether acetate, monoethyl ether acetate, etc.), dipropylene glycol alkyl ethers (Monomethyl ether, monoethyl ether, n-propyl ether, monobutyl ether, dimethyl ether, diethyl ether), ethyl formate, propyl formate, butyl formate, amyl formate, methyl acetate, ethyl acetate, propyl acetate, butyl acetate, methyl propionate, Carboxylic acid esters such as ethyl propionate, methyl butyrate and ethyl butyrate, dimethylformamide, dimethyl sulfoxide, dioxane, Rahidorofuran, methyl lactate, ethyl lactate, methyl benzoate, ethyl benzoate, may be mentioned propylene carbonate. These solvents can be used alone or in admixture of two or more.
[0078]
As a material of the aluminum support, pure aluminum and aluminum alloy can be preferably used. Various aluminum alloys can be used. For example, an alloy of a metal such as silicon, copper, manganese, magnesium, chromium, zinc, lead, bismuth, nickel, titanium, sodium, iron, and aluminum is used.
[0079]
The aluminum support is preferably subjected to a pretreatment such as a degreasing treatment, a roughening treatment, or an anodizing treatment. Examples of the degreasing treatment include a degreasing treatment using a solvent such as trichlene and thinner, an emulsion degreasing treatment using an emulsion such as kerosene and triethanol, and a degreasing treatment using an aqueous alkali solution such as caustic soda.
When an alkaline aqueous solution such as caustic soda is used for the degreasing treatment, dirt and oxide film that cannot be removed only by the degreasing treatment can be removed. When an alkaline aqueous solution such as caustic soda is used for the degreasing treatment, smut is generated on the surface of the support. In this case, it is immersed in an acid such as phosphoric acid, nitric acid, sulfuric acid, chromic acid, or a mixed acid thereof, It is preferable to perform the treatment.
[0080]
As the roughening treatment method, a so-called mechanical roughening method in which the surface is mechanically roughened, a so-called electrochemical roughening method in which the surface is electrochemically roughened, and alkali or There is a so-called chemical roughening method in which a surface is roughened with an etching agent made of an acid or a mixture thereof. Moreover, the method which combined these can also be utilized.
[0081]
Examples of the mechanical roughening method include ball polishing, brush polishing, blast polishing, buff polishing, and honing polishing. Among these, brush polishing and honing polishing are preferable.
The electrochemical surface roughening method is, for example, a method in which a support is electrolytically treated by alternating current or direct current in an electrolytic solution containing hydrochloric acid or nitric acid. The surface of the support can be roughened by using any one or two or more of these methods. As the electrochemical surface roughening method, for example, methods described in Japanese Patent Publication No. 48-28123, British Patent No. 896563, and Japanese Patent Laid-Open No. 53-67507 can be used.
The voltage applied in the electrochemical surface roughening is preferably 1 to 50V, more preferably 5 to 30V. Current density is 10 to 200 A / dm2Is preferred, 20 to 150 A / dm2Is more preferable. The amount of electricity is 100 to 2000 C / dm2, Preferably 200-1500 C / dm2, More preferably 200 to 1000 C / dm2It is. The temperature is preferably 10 to 50 ° C, more preferably 15 to 45 ° C. The concentration of hydrochloric acid or nitric acid is preferably 0.1 to 5% by weight. If necessary, nitrates, chlorides, amines, aldehydes, phosphoric acid, chromic acid, boric acid, acetic acid, oxalic acid, and the like can be added to the electrolytic solution.
[0082]
When two or more roughening treatments are combined, it is preferable to etch the surface by immersing in an acid or alkali aqueous solution between the treatments. Examples of the acid include sulfuric acid, persulfuric acid, fluorine, phosphoric acid, nitric acid, hydrochloric acid and the like, and examples of the base include sodium hydroxide and potassium hydroxide. Among these, it is preferable to use an alkaline aqueous solution. A 0.05 to 40% by weight aqueous solution of these acids or alkalis is used and treated at a liquid temperature of 40 to 100 ° C. for 5 to 300 seconds. When the above is immersed in an alkaline aqueous solution, smut is generated on the surface of the support. In this case, the substrate is immersed in an acid such as phosphoric acid, nitric acid, sulfuric acid, chromic acid, or a mixed acid thereof, It is preferable to perform a desmut treatment.
[0083]
By the roughening treatment described above, the surface roughness of the aluminum support is controlled to 0.1 to 1.2 μm with the centerline average roughness Ra value defined by JIS B0601-1982. If the surface roughness is out of the above range, problems may occur in the adhesion between the infrared photosensitive layer and the support, development unevenness, printing durability, resolution, and stability.
[0084]
The roughened aluminum support is then anodized. As the electrolytic solution used for the anodizing treatment, any electrolyte solution can be used as long as it forms a porous oxide film. Generally, sulfuric acid, phosphoric acid, oxalic acid, chromic acid, sulfamic acid, benzenesulfonic acid, etc., or these two kinds The mixed acid which combined the above is used. The treatment conditions for anodization vary depending on the electrolyte used, and thus cannot be specified in general. However, in general, the concentration of the electrolyte is 1 to 80% by weight, the temperature is 5 to 70 ° C., and the current density is 1 to 1. 60A / dm2A voltage of 1 to 100 V and an electrolysis time of 10 seconds to 5 minutes are suitable. The sulfuric acid method is preferred, and the treatment is usually performed with a direct current, but alternating current can also be used. The concentration of sulfuric acid is 10 to 50% by weight, the temperature is 20 to 50 ° C., and the current density is 1 to 20 A / dm.2The electrolytic treatment is preferably performed for 20 to 250 seconds. The electrolytic solution preferably contains aluminum ions.
[0085]
The aluminum support may be subjected to a sealing treatment after the anodizing treatment. Examples of the sealing treatment include hot water treatment, boiling water treatment, steam treatment, sodium silicate treatment, dichromate aqueous solution treatment, nitrite treatment, and ammonium acetate treatment.
Further, in some cases, the aluminum support may be subjected to a hydrophilization treatment after the anodizing treatment (or further after the sealing treatment). As the hydrophilization treatment, alkali metal silicate described in US Pat. No. 3,181,461, hydrophilic cellulose described in US Pat. No. 1,860,426, and JP-A-60-149491 are disclosed. Amino acids and salts thereof described in JP-A-63-165183, amines having a hydroxyl group described in JP-A-60-232998 and salts thereof, phosphates described in JP-A-62-19494, Examples thereof include treatment with a polymer compound containing a monomer unit having a sulfo group described in JP-A-59-101651.
[0086]
Furthermore, in order to prevent scratches on the photosensitive layer when the photosensitive lithographic printing plates are stacked, and to prevent the aluminum component from eluting into the developer during development, JP-A-50-151136, The process which provides a protective layer in the back surface of a support body as described in said 57-63293 gazette, 60-73538 gazette, 61-67863 gazette, Unexamined-Japanese-Patent No. 6-35174, etc. can be performed. Arbitrary patterns, figures, characters, barcodes, and the like for embodying the design may be formed on the back surface of the support by an inkjet method, a printing method, or the like.
[0087]
The thickness of the photosensitive layer provided on the support is preferably in the range of 0.3 to 10 μm. More preferably, it is the range of 0.5-8 micrometers. When the thickness of the photosensitive layer is out of the above range, problems often occur in terms of coating film uniformity, developability, cost, and the like.
[0088]
An organic transparent film can be provided as a protective film on the photosensitive layer. Since the protective film contributes not only to protecting the photosensitive layer but also to improving the sensitivity and stabilizing the photosensitive layer, it is preferable to provide such a protective film.
As a protective film, a film or sheet of polyethylene, polypropylene, polyethylene terephthalate, polyimide, polyamide, acrylic resin, polyvinyl butyral or the like is laminated on the photosensitive layer, polyvinyl alcohol, partially saponified polyvinyl acetate, polyvinyl pyrrolidone, gelatin, It can be provided by applying a water-soluble resin such as cellulose.
Among these protective films, water-soluble resins that do not need to be peeled off during development are preferable. A protective film having a thickness of 0.3 to 100 μm can be preferably used.
[0089]
The exposure light source applicable to the photosensitive printing plate of the present invention is not particularly limited as long as it emits infrared light. Preferred examples include lasers such as semiconductor lasers and YAG lasers. Particularly preferable laser light is one having an infrared light wavelength in the range of 780 to 1200 nm.
[0090]
The photosensitive printing plate of the present invention can form an image on a support by developing with an aqueous solution containing an alkali after scanning exposure with such a light source. The developer can further contain a surfactant, an organic solvent, a buffer, a dye or a pigment.
Suitable alkali agents include sodium silicate, potassium silicate, ammonium silicate, sodium metasilicate, potassium metasilicate, sodium hydroxide, potassium hydroxide, lithium hydroxide, tribasic sodium phosphate, dibasic sodium phosphate. , Inorganic alkali agents such as sodium carbonate, potassium carbonate, sodium bicarbonate and the like, and organic amine compounds such as trimethylamine, diethylamine, monoisopropylamine, n-butylamine, monoethanolamine, diethanolamine, triethanolamine, and the like. In combination, it can be used as an aqueous solution of about 0.1 to 10% by weight.
It is preferable to add a surfactant to the developer, for example, nonionic interfaces such as polyoxyethylene alkyl ethers, polyoxyethylene alkyl allyl ethers, polyoxyethylene alkyl esters, sorbitan alkyl esters, monoglyceride alkyl esters, etc. Activators, anionic surfactants such as alkyl benzene sulfonates, alkyl naphthalene sulfonates, alkyl sulfates, alkyl sulfonates, sulfosuccinate esters, double-sided surfactants such as alkyl betaines and amino acids can be used. is there.
In addition, as the organic solvent, for example, isopropyl alcohol, benzyl alcohol, ethyl cellosolve, butyl cellosolve, phenyl cellosolve, propylene glycol, diacetone glycol and the like can be contained as necessary.
[0091]
【Example】
EXAMPLES Hereinafter, although an Example and a comparative example demonstrate this invention further more concretely, this invention is not limited by these Examples, unless the summary is exceeded.
Example-1
Synthesis of alkali-soluble resin
A flask was charged with 20 g of a styrene / acrylic acid copolymer resin having an acid value of 200 and a weight average molecular weight of 5000, 0.2 g of p-methoxyphenol, 0.2 g of dodecyltrimethylammonium chloride, and 40 g of propylene glycol monomethyl ether acetate (PGMEA). , 4-epoxycyclohexyl) methyl acrylate was added dropwise and reacted at a temperature of 100 ° C. for 30 hours. The reaction solution was reprecipitated in water and dried to obtain a resin. When neutralization titration with potassium hydroxide was performed, the resin acid value was 80 mg · KOH / g. Moreover, as a result of measuring molecular weight by GPC, weight average molecular weight Mw was 8000, number average molecular weight Mn was 3000, and molecular weight distribution Mw / Mn was 2.7.
[0092]
Fabrication of support
A 0.24 mm thick, JIS1050 aluminum plate was degreased with 3% sodium hydroxide, and this was degreased in a 11.5 g / l hydrochloric acid bath at 25 ° C. and 80 A / dm.2Electrolytic etching for 11 seconds at a current density of 1, 30 A in a 30% sulfuric acid bath after washing with water, 11.5 A / dm2And anodizing for 15 seconds. The center line average roughness Ra of the obtained support was measured with a surface roughness meter (Surfcoder SE-30H manufactured by Kosaka Laboratories) and found to be 0.6 μm.
On this support, the following photosensitive composition coating solution was applied and dried using a bar coater to a dry film thickness of 2 μm. Further, a polyvinyl alcohol aqueous solution was coated thereon using a bar coater so as to have a dry film thickness of 3 μm and dried to prepare a photosensitive lithographic printing plate.
[0093]
Photosensitive composition coating solution
Alkali-soluble resin; Synthesis Example-1 100 parts by weight
Ethylenically unsaturated double bond compound
; A-1 (however, R0= H) 50 parts by weight
2,2-bis (4-hydroxyphenyl) propane
50 parts by weight of acryloyl diethylene oxide adduct
Phthalocyanine compound; R-16 5 parts by weight
Initiator; 10 parts by weight of B-1
Surfactant; S-381 0.1 parts by weight
Cyclohexanone 1500 parts by weight
[0094]
Image characteristics
The obtained photosensitive printing plate is attached to an aluminum rotating drum having a diameter of 10 cm, fixed so that the photosensitive layer is on the outside, and then photosensitive with a semiconductor laser having a wavelength of 830 nm and an output of 40 mW (“HL8325C” manufactured by Hitachi, Ltd.). The layer surface was exposed while rotating the drum at a beam spot diameter of 30 μm. The rotation speed was set to 5 rpm.
Development was carried out by dipping for 1 minute at 25 ° C. with an alkaline developer containing 3% by weight of potassium silicate and 5% by weight of Perex NBL (surfactant manufactured by Kao Corporation).
When the obtained image was observed with a magnifying glass having a magnification of 100, a sharp image with an edge having a line width of 30 μm was obtained.
On the other hand, the ground stain of the non-image area is measured by using a reflection densitometer without a filter (“RD-514” manufactured by Macbeth Co.), and from this value, the surface of the support before coating the photosensitive composition is measured. From the value obtained by subtracting the value of the reflection absorbance, the amount of background soil remaining on the support was evaluated according to the following criteria.
[0095]
A: Reflectance absorbance is less than 0.02.
B: Reflectance absorbance is 0.02 or more and less than 0.04
C: Reflectance absorbance is 0.04 or more and less than 0.06
D: Reflectance absorbance is 0.06 or more
The result was A, and there was no background stain on the non-image area, indicating good developability.
[0096]
Safe light
When the photosensitive printing plate was left in a room illuminated with a white fluorescent lamp for 3 hours and then exposed and developed under the same conditions as described above, no fogging by the white lamp was observed and an image having a 30 μ sharp edge was obtained. It was found that the safelight property was good. In addition, there was no background stain on the non-image area.
[0097]
Stability
When the photosensitive printing plate was left at 55 ° C. for 3 days and exposed and developed under the same conditions as described above, a sharp image with an edge having a line width of 30 μm was obtained, and there was no background stain.
[0098]
Example-2
Image characteristics, safelight properties, and stability were evaluated in the same manner as in Example 1 except that the phthalocyanine compound was changed to R-11 in the photosensitive composition coating liquid of Example-1. An image characteristic having an image with a sharp edge of 30 μm was obtained, and the background stain of the non-image area was also A rank and good. Furthermore, safelight properties and stability were also good.
[0099]
Example-3
In the photosensitive composition coating solution of Example 1, the ethylenically unsaturated double bond compound was hexamethylenebis [tris (acryloyloxymethyl) ethylurethane]; 80 parts by weight, methacryloyloxyethyl phosphate and bis (methacryloyloxyethyl) 1: 1 mixture with phosphate; image properties, safelight properties, and stability were evaluated in the same manner as in Example 1 except that the mixture was changed to 20 parts by weight. An image characteristic having an image with a sharp edge of 30 μm was obtained, and the background stain of the non-image area was also A rank and good. Furthermore, safelight properties and stability were also good.
[0100]
Example-4
Image characteristics, safelight properties, and stability were evaluated in the same manner as in Example 1 except that the phthalocyanine compound was changed to R-11 in the photosensitive composition coating liquid of Example-3. An image characteristic having an image with a sharp edge of 30 μm was obtained, and the background stain of the non-image area was also A rank and good. Furthermore, safelight properties and stability were also good.
[0101]
Example 5
In the same manner as in Example 1, except that the initiator was changed to 2- (p-methoxystyryl) -4,6-bis (trichloroethyl) -s-triazine in the photosensitive composition coating solution of Example-1. Image characteristics, safe light properties, and stability were evaluated. An image characteristic having an image with a sharp edge of 30 μm was obtained, and the background stain of the non-image area was also A rank and good. Furthermore, safelight properties and stability were also good.
[0102]
Comparative Example-1
A photosensitive printing plate was prepared under the same conditions as in Example 1, except that the phthalocyanine compound was changed to a cyanine dye (“CY-17” manufactured by Nippon Kayaku Co., Ltd.) in the photosensitive composition coating liquid of Example-1. When the same evaluation as in Example-1 was performed, the image portion was washed away with the developer, and no image was obtained.
[0103]
Comparative Example-2
A photosensitive printing plate was prepared under the same conditions as in Example 1 except that the phthalocyanine compound was changed to a cyanine dye (“CY-10” manufactured by Nippon Kayaku Co., Ltd.) in the photosensitive composition coating liquid of Example-1. When the same evaluation as in Example-1 was performed, the image portion was washed away with the developer, and no image was obtained.
[0104]
Comparative Example-3
Photosensitive under the same conditions as in Example-1, except that the ethylenically unsaturated double bond compound was changed to ethylene glycol diacrylate (“9G” manufactured by Shin-Nakamura Chemical Co., Ltd.) in the photosensitive composition coating liquid of Example-1. When the same evaluation as in Example 1 was performed, an image having a sharp edge of 30 μm was formed. The background stain on the non-image area was C rank and was poor. In the safe light test and the stability test, the dirt was further deteriorated to D rank.
[0105]
【The invention's effect】
Since the photosensitive composition of the present invention has high sensitivity to infrared light, it can be directly drawn with an infrared laser such as a semiconductor laser or a YAG laser. Since the obtained image has high resolution and excellent developability and does not cause scumming or the like, a high-quality printed matter can be obtained when applied to a printing plate. Since the exposure work can be performed in a bright room such as a white light, the workability is excellent.
Claims (5)
で表される化合物であることを特徴とする感光性組成物。In the photosensitive composition comprising an ethylenically unsaturated double bond compound, an infrared absorbing dye and a polymerization initiator, the infrared absorbing dye is a phthalocyanine compound, and the ethylenically unsaturated double bond compound is at least ( A (meth) acryloyloxyalkyl group-containing amine compound and / or a (meth) acryloyloxyalkyl group-containing phosphate compound , wherein the (meth) acryloyloxyalkyl group-containing amine compound is represented by the following general formula (I):
The photosensitive composition characterized by the above-mentioned.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP36059299A JP4382225B2 (en) | 1999-02-19 | 1999-12-20 | Photosensitive composition and photosensitive printing plate |
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| Application Number | Priority Date | Filing Date | Title |
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| JP11-41667 | 1999-02-19 | ||
| JP4166799 | 1999-02-19 | ||
| JP36059299A JP4382225B2 (en) | 1999-02-19 | 1999-12-20 | Photosensitive composition and photosensitive printing plate |
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| JP2000305262A JP2000305262A (en) | 2000-11-02 |
| JP4382225B2 true JP4382225B2 (en) | 2009-12-09 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2006269416A (en) * | 2005-02-23 | 2006-10-05 | Jsr Corp | Plasma display panel manufacturing method and transfer film |
| KR101293787B1 (en) | 2010-07-28 | 2013-08-06 | 제일모직주식회사 | Transparent Thermoplastic Resin Composition with Excellent Flame-resistance and Heat-resistance |
| KR101351614B1 (en) | 2010-11-05 | 2014-02-17 | 제일모직주식회사 | Polycarbonate resin composition with flame retardancy and scratch resistance |
| KR101374360B1 (en) | 2010-12-14 | 2014-03-18 | 제일모직주식회사 | Polycarbonate resin composition with flame retardancy and scratch resistance |
| KR20130002789A (en) | 2011-06-29 | 2013-01-08 | 제일모직주식회사 | Photosensitive resin composition for color filter and color filter using the same |
| KR101674990B1 (en) | 2012-12-07 | 2016-11-10 | 제일모직 주식회사 | Photosensitive resin composition for color filter, and color filter using the same |
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