JP4172949B2 - Method for producing water / oil repellent polyolefin fiber - Google Patents
Method for producing water / oil repellent polyolefin fiber Download PDFInfo
- Publication number
- JP4172949B2 JP4172949B2 JP2002144844A JP2002144844A JP4172949B2 JP 4172949 B2 JP4172949 B2 JP 4172949B2 JP 2002144844 A JP2002144844 A JP 2002144844A JP 2002144844 A JP2002144844 A JP 2002144844A JP 4172949 B2 JP4172949 B2 JP 4172949B2
- Authority
- JP
- Japan
- Prior art keywords
- water
- acrylate
- emulsion
- oil
- oil repellent
- 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 - Fee Related
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims description 81
- 239000000835 fiber Substances 0.000 title claims description 58
- 239000005871 repellent Substances 0.000 title claims description 52
- 229920000098 polyolefin Polymers 0.000 title claims description 47
- 230000002940 repellent Effects 0.000 title claims description 47
- 238000004519 manufacturing process Methods 0.000 title claims description 21
- 239000000839 emulsion Substances 0.000 claims description 38
- -1 polypropylene Polymers 0.000 claims description 36
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 claims description 27
- 229910052731 fluorine Inorganic materials 0.000 claims description 27
- 239000011737 fluorine Substances 0.000 claims description 27
- 125000003709 fluoroalkyl group Chemical group 0.000 claims description 16
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 claims description 15
- 238000000034 method Methods 0.000 claims description 13
- 239000005056 polyisocyanate Substances 0.000 claims description 13
- 229920001228 polyisocyanate Polymers 0.000 claims description 13
- 239000004814 polyurethane Substances 0.000 claims description 12
- 229920002635 polyurethane Polymers 0.000 claims description 12
- 239000011347 resin Substances 0.000 claims description 9
- 229920005989 resin Polymers 0.000 claims description 9
- 239000004743 Polypropylene Substances 0.000 claims description 7
- 239000000178 monomer Substances 0.000 claims description 7
- 229920001155 polypropylene Polymers 0.000 claims description 7
- 229920001577 copolymer Polymers 0.000 claims description 6
- 125000000129 anionic group Chemical group 0.000 claims description 5
- 239000003795 chemical substances by application Substances 0.000 claims description 4
- 239000007788 liquid Substances 0.000 claims description 4
- 239000000203 mixture Substances 0.000 claims description 4
- 239000004744 fabric Substances 0.000 description 25
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 description 21
- 239000004745 nonwoven fabric Substances 0.000 description 15
- 229920005862 polyol Polymers 0.000 description 13
- 150000001875 compounds Chemical class 0.000 description 12
- 230000000052 comparative effect Effects 0.000 description 10
- 239000006185 dispersion Substances 0.000 description 8
- ONIKNECPXCLUHT-UHFFFAOYSA-N 2-chlorobenzoyl chloride Chemical compound ClC(=O)C1=CC=CC=C1Cl ONIKNECPXCLUHT-UHFFFAOYSA-N 0.000 description 7
- 239000004480 active ingredient Substances 0.000 description 6
- 125000000217 alkyl group Chemical group 0.000 description 6
- 125000004432 carbon atom Chemical group C* 0.000 description 6
- 229920000642 polymer Polymers 0.000 description 5
- 150000003077 polyols Chemical class 0.000 description 5
- 239000004721 Polyphenylene oxide Substances 0.000 description 4
- 125000006297 carbonyl amino group Chemical group [H]N([*:2])C([*:1])=O 0.000 description 4
- 238000007720 emulsion polymerization reaction Methods 0.000 description 4
- DCAYPVUWAIABOU-UHFFFAOYSA-N hexadecane Chemical compound CCCCCCCCCCCCCCCC DCAYPVUWAIABOU-UHFFFAOYSA-N 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 229920000570 polyether Polymers 0.000 description 4
- 229920002994 synthetic fiber Polymers 0.000 description 4
- 239000012209 synthetic fiber Substances 0.000 description 4
- ZWEHNKRNPOVVGH-UHFFFAOYSA-N 2-Butanone Chemical compound CCC(C)=O ZWEHNKRNPOVVGH-UHFFFAOYSA-N 0.000 description 3
- JTHZUSWLNCPZLX-UHFFFAOYSA-N 6-fluoro-3-methyl-2h-indazole Chemical compound FC1=CC=C2C(C)=NNC2=C1 JTHZUSWLNCPZLX-UHFFFAOYSA-N 0.000 description 3
- IMNFDUFMRHMDMM-UHFFFAOYSA-N N-Heptane Chemical compound CCCCCCC IMNFDUFMRHMDMM-UHFFFAOYSA-N 0.000 description 3
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 3
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- ZMANZCXQSJIPKH-UHFFFAOYSA-N Triethylamine Chemical compound CCN(CC)CC ZMANZCXQSJIPKH-UHFFFAOYSA-N 0.000 description 3
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 3
- 238000011156 evaluation Methods 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 125000004435 hydrogen atom Chemical group [H]* 0.000 description 3
- 229920005906 polyester polyol Polymers 0.000 description 3
- 239000003505 polymerization initiator Substances 0.000 description 3
- 239000002904 solvent Substances 0.000 description 3
- VZXPHDGHQXLXJC-UHFFFAOYSA-N 1,6-diisocyanato-5,6-dimethylheptane Chemical compound O=C=NC(C)(C)C(C)CCCCN=C=O VZXPHDGHQXLXJC-UHFFFAOYSA-N 0.000 description 2
- CMCBDXRRFKYBDG-UHFFFAOYSA-N 1-dodecoxydodecane Chemical compound CCCCCCCCCCCCOCCCCCCCCCCCC CMCBDXRRFKYBDG-UHFFFAOYSA-N 0.000 description 2
- LCZVSXRMYJUNFX-UHFFFAOYSA-N 2-[2-(2-hydroxypropoxy)propoxy]propan-1-ol Chemical compound CC(O)COC(C)COC(C)CO LCZVSXRMYJUNFX-UHFFFAOYSA-N 0.000 description 2
- OMIGHNLMNHATMP-UHFFFAOYSA-N 2-hydroxyethyl prop-2-enoate Chemical compound OCCOC(=O)C=C OMIGHNLMNHATMP-UHFFFAOYSA-N 0.000 description 2
- VHSHLMUCYSAUQU-UHFFFAOYSA-N 2-hydroxypropyl methacrylate Chemical compound CC(O)COC(=O)C(C)=C VHSHLMUCYSAUQU-UHFFFAOYSA-N 0.000 description 2
- GWZMWHWAWHPNHN-UHFFFAOYSA-N 2-hydroxypropyl prop-2-enoate Chemical compound CC(O)COC(=O)C=C GWZMWHWAWHPNHN-UHFFFAOYSA-N 0.000 description 2
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 2
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- KAKZBPTYRLMSJV-UHFFFAOYSA-N Butadiene Chemical compound C=CC=C KAKZBPTYRLMSJV-UHFFFAOYSA-N 0.000 description 2
- SOGAXMICEFXMKE-UHFFFAOYSA-N Butylmethacrylate Chemical compound CCCCOC(=O)C(C)=C SOGAXMICEFXMKE-UHFFFAOYSA-N 0.000 description 2
- 239000004970 Chain extender Substances 0.000 description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 2
- 239000005057 Hexamethylene diisocyanate Substances 0.000 description 2
- OAKJQQAXSVQMHS-UHFFFAOYSA-N Hydrazine Chemical compound NN OAKJQQAXSVQMHS-UHFFFAOYSA-N 0.000 description 2
- WOBHKFSMXKNTIM-UHFFFAOYSA-N Hydroxyethyl methacrylate Chemical compound CC(=C)C(=O)OCCO WOBHKFSMXKNTIM-UHFFFAOYSA-N 0.000 description 2
- 239000005058 Isophorone diisocyanate Substances 0.000 description 2
- RRHGJUQNOFWUDK-UHFFFAOYSA-N Isoprene Chemical compound CC(=C)C=C RRHGJUQNOFWUDK-UHFFFAOYSA-N 0.000 description 2
- CNCOEDDPFOAUMB-UHFFFAOYSA-N N-Methylolacrylamide Chemical compound OCNC(=O)C=C CNCOEDDPFOAUMB-UHFFFAOYSA-N 0.000 description 2
- 239000004677 Nylon Substances 0.000 description 2
- 229920003171 Poly (ethylene oxide) Polymers 0.000 description 2
- VBIIFPGSPJYLRR-UHFFFAOYSA-M Stearyltrimethylammonium chloride Chemical compound [Cl-].CCCCCCCCCCCCCCCCCC[N+](C)(C)C VBIIFPGSPJYLRR-UHFFFAOYSA-M 0.000 description 2
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 2
- BZHJMEDXRYGGRV-UHFFFAOYSA-N Vinyl chloride Chemical compound ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 description 2
- LXEKPEMOWBOYRF-UHFFFAOYSA-N [2-[(1-azaniumyl-1-imino-2-methylpropan-2-yl)diazenyl]-2-methylpropanimidoyl]azanium;dichloride Chemical compound Cl.Cl.NC(=N)C(C)(C)N=NC(C)(C)C(N)=N LXEKPEMOWBOYRF-UHFFFAOYSA-N 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- KBLWLMPSVYBVDK-UHFFFAOYSA-N cyclohexyl prop-2-enoate Chemical compound C=CC(=O)OC1CCCCC1 KBLWLMPSVYBVDK-UHFFFAOYSA-N 0.000 description 2
- DIOQZVSQGTUSAI-UHFFFAOYSA-N decane Chemical compound CCCCCCCCCC DIOQZVSQGTUSAI-UHFFFAOYSA-N 0.000 description 2
- 150000002009 diols Chemical class 0.000 description 2
- 238000007598 dipping method Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 235000019441 ethanol Nutrition 0.000 description 2
- VOZRXNHHFUQHIL-UHFFFAOYSA-N glycidyl methacrylate Chemical compound CC(=C)C(=O)OCC1CO1 VOZRXNHHFUQHIL-UHFFFAOYSA-N 0.000 description 2
- RRAMGCGOFNQTLD-UHFFFAOYSA-N hexamethylene diisocyanate Chemical compound O=C=NCCCCCCN=C=O RRAMGCGOFNQTLD-UHFFFAOYSA-N 0.000 description 2
- 239000012948 isocyanate Chemical group 0.000 description 2
- 150000002513 isocyanates Chemical group 0.000 description 2
- 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 2
- FQPSGWSUVKBHSU-UHFFFAOYSA-N methacrylamide Chemical compound CC(=C)C(N)=O FQPSGWSUVKBHSU-UHFFFAOYSA-N 0.000 description 2
- OMNKZBIFPJNNIO-UHFFFAOYSA-N n-(2-methyl-4-oxopentan-2-yl)prop-2-enamide Chemical compound CC(=O)CC(C)(C)NC(=O)C=C OMNKZBIFPJNNIO-UHFFFAOYSA-N 0.000 description 2
- 229920001778 nylon Polymers 0.000 description 2
- TVMXDCGIABBOFY-UHFFFAOYSA-N octane Chemical compound CCCCCCCC TVMXDCGIABBOFY-UHFFFAOYSA-N 0.000 description 2
- 239000005022 packaging material Substances 0.000 description 2
- 239000004417 polycarbonate Substances 0.000 description 2
- 229920000515 polycarbonate Polymers 0.000 description 2
- 229920000728 polyester Polymers 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- 239000004094 surface-active agent Substances 0.000 description 2
- 238000003786 synthesis reaction Methods 0.000 description 2
- BGHCVCJVXZWKCC-UHFFFAOYSA-N tetradecane Chemical compound CCCCCCCCCCCCCC BGHCVCJVXZWKCC-UHFFFAOYSA-N 0.000 description 2
- GETQZCLCWQTVFV-UHFFFAOYSA-N trimethylamine Chemical compound CN(C)C GETQZCLCWQTVFV-UHFFFAOYSA-N 0.000 description 2
- DDKMFQGAZVMXQV-UHFFFAOYSA-N (3-chloro-2-hydroxypropyl) 2-methylprop-2-enoate Chemical compound CC(=C)C(=O)OCC(O)CCl DDKMFQGAZVMXQV-UHFFFAOYSA-N 0.000 description 1
- FKTHNVSLHLHISI-UHFFFAOYSA-N 1,2-bis(isocyanatomethyl)benzene Chemical compound O=C=NCC1=CC=CC=C1CN=C=O FKTHNVSLHLHISI-UHFFFAOYSA-N 0.000 description 1
- PCHXZXKMYCGVFA-UHFFFAOYSA-N 1,3-diazetidine-2,4-dione Chemical compound O=C1NC(=O)N1 PCHXZXKMYCGVFA-UHFFFAOYSA-N 0.000 description 1
- OVBFMUAFNIIQAL-UHFFFAOYSA-N 1,4-diisocyanatobutane Chemical compound O=C=NCCCCN=C=O OVBFMUAFNIIQAL-UHFFFAOYSA-N 0.000 description 1
- DFPJRUKWEPYFJT-UHFFFAOYSA-N 1,5-diisocyanatopentane Chemical compound O=C=NCCCCCN=C=O DFPJRUKWEPYFJT-UHFFFAOYSA-N 0.000 description 1
- PTBDIHRZYDMNKB-UHFFFAOYSA-N 2,2-Bis(hydroxymethyl)propionic acid Chemical compound OCC(C)(CO)C(O)=O PTBDIHRZYDMNKB-UHFFFAOYSA-N 0.000 description 1
- JVYDLYGCSIHCMR-UHFFFAOYSA-N 2,2-bis(hydroxymethyl)butanoic acid Chemical compound CCC(CO)(CO)C(O)=O JVYDLYGCSIHCMR-UHFFFAOYSA-N 0.000 description 1
- OEPOKWHJYJXUGD-UHFFFAOYSA-N 2-(3-phenylmethoxyphenyl)-1,3-thiazole-4-carbaldehyde Chemical compound O=CC1=CSC(C=2C=C(OCC=3C=CC=CC=3)C=CC=2)=N1 OEPOKWHJYJXUGD-UHFFFAOYSA-N 0.000 description 1
- GOXQRTZXKQZDDN-UHFFFAOYSA-N 2-Ethylhexyl acrylate Chemical compound CCCCC(CC)COC(=O)C=C GOXQRTZXKQZDDN-UHFFFAOYSA-N 0.000 description 1
- JGRXEBOFWPLEAV-UHFFFAOYSA-N 2-ethylbutyl prop-2-enoate Chemical compound CCC(CC)COC(=O)C=C JGRXEBOFWPLEAV-UHFFFAOYSA-N 0.000 description 1
- IEVADDDOVGMCSI-UHFFFAOYSA-N 2-hydroxybutyl 2-methylprop-2-enoate Chemical compound CCC(O)COC(=O)C(C)=C IEVADDDOVGMCSI-UHFFFAOYSA-N 0.000 description 1
- NJRHMGPRPPEGQL-UHFFFAOYSA-N 2-hydroxybutyl prop-2-enoate Chemical compound CCC(O)COC(=O)C=C NJRHMGPRPPEGQL-UHFFFAOYSA-N 0.000 description 1
- JMADMUIDBVATJT-UHFFFAOYSA-N 2-methylprop-2-enamide;propan-2-one Chemical compound CC(C)=O.CC(C)=O.CC(=C)C(N)=O JMADMUIDBVATJT-UHFFFAOYSA-N 0.000 description 1
- RUMACXVDVNRZJZ-UHFFFAOYSA-N 2-methylpropyl 2-methylprop-2-enoate Chemical compound CC(C)COC(=O)C(C)=C RUMACXVDVNRZJZ-UHFFFAOYSA-N 0.000 description 1
- ZDKYYMRLZONTFK-UHFFFAOYSA-N 3,4-bis(isocyanatomethyl)bicyclo[2.2.1]heptane Chemical compound C1CC2(CN=C=O)C(CN=C=O)CC1C2 ZDKYYMRLZONTFK-UHFFFAOYSA-N 0.000 description 1
- ZVYGIPWYVVJFRW-UHFFFAOYSA-N 3-methylbutyl prop-2-enoate Chemical compound CC(C)CCOC(=O)C=C ZVYGIPWYVVJFRW-UHFFFAOYSA-N 0.000 description 1
- UPMLOUAZCHDJJD-UHFFFAOYSA-N 4,4'-Diphenylmethane Diisocyanate Chemical compound C1=CC(N=C=O)=CC=C1CC1=CC=C(N=C=O)C=C1 UPMLOUAZCHDJJD-UHFFFAOYSA-N 0.000 description 1
- MVFNWZHRHUOGKQ-UHFFFAOYSA-N 4-methyl-1,7-dioxacyclotridecane-8,13-dione Chemical compound CC1CCOC(=O)CCCCC(=O)OCC1 MVFNWZHRHUOGKQ-UHFFFAOYSA-N 0.000 description 1
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- 244000025254 Cannabis sativa Species 0.000 description 1
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- KXBFLNPZHXDQLV-UHFFFAOYSA-N [cyclohexyl(diisocyanato)methyl]cyclohexane Chemical compound C1CCCCC1C(N=C=O)(N=C=O)C1CCCCC1 KXBFLNPZHXDQLV-UHFFFAOYSA-N 0.000 description 1
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- 125000001931 aliphatic group Chemical group 0.000 description 1
- 125000005250 alkyl acrylate group Chemical group 0.000 description 1
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- FNQYSFPUFCSLAS-UHFFFAOYSA-N aziridin-1-yl 2-methylprop-2-enoate Chemical compound CC(=C)C(=O)ON1CC1 FNQYSFPUFCSLAS-UHFFFAOYSA-N 0.000 description 1
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- OIWOHHBRDFKZNC-UHFFFAOYSA-N cyclohexyl 2-methylprop-2-enoate Chemical compound CC(=C)C(=O)OC1CCCCC1 OIWOHHBRDFKZNC-UHFFFAOYSA-N 0.000 description 1
- BTQLDZMOTPTCGG-UHFFFAOYSA-N cyclopentyl prop-2-enoate Chemical compound C=CC(=O)OC1CCCC1 BTQLDZMOTPTCGG-UHFFFAOYSA-N 0.000 description 1
- 239000000539 dimer Substances 0.000 description 1
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- 239000003995 emulsifying agent Substances 0.000 description 1
- 125000005670 ethenylalkyl group Chemical group 0.000 description 1
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- SUPCQIBBMFXVTL-UHFFFAOYSA-N ethyl 2-methylprop-2-enoate Chemical compound CCOC(=O)C(C)=C SUPCQIBBMFXVTL-UHFFFAOYSA-N 0.000 description 1
- 239000002657 fibrous material Substances 0.000 description 1
- 230000005251 gamma ray Effects 0.000 description 1
- 239000011487 hemp Substances 0.000 description 1
- YCOZIPAWZNQLMR-UHFFFAOYSA-N heptane - octane Natural products CCCCCCCCCCCCCCC YCOZIPAWZNQLMR-UHFFFAOYSA-N 0.000 description 1
- XXMIOPMDWAUFGU-UHFFFAOYSA-N hexane-1,6-diol Chemical compound OCCCCCCO XXMIOPMDWAUFGU-UHFFFAOYSA-N 0.000 description 1
- LNMQRPPRQDGUDR-UHFFFAOYSA-N hexyl prop-2-enoate Chemical compound CCCCCCOC(=O)C=C LNMQRPPRQDGUDR-UHFFFAOYSA-N 0.000 description 1
- 229920001519 homopolymer Polymers 0.000 description 1
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- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 description 1
- 239000012770 industrial material Substances 0.000 description 1
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- 150000002576 ketones Chemical class 0.000 description 1
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Landscapes
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Description
【0001】
【発明の属する技術分野】
本発明は、良好な撥水性および撥油性が付与されたポリオレフィン繊維の製造方法に関する。
【0002】
【従来の技術】
従来より繊維に撥水撥油性を付与するために、フルオロアルキル基を含有する(メタ)アクリレートの如き化合物の重合体を水に分散させたフッ素系撥水撥油剤を用いることが知られている。このようなフッ素系撥水撥油剤により合成繊維に撥水性や撥油性を付与する場合、ポリエステル、ナイロンなどの合成繊維では撥水性や撥油性が比較的容易に得られるが、ポリオレフィン繊維の場合には撥水性および、特に撥油性を得ることが難しい。これは、ポリオレフィン繊維の表面特性が比較的疎水性であるためと考えられている。
【0003】
特開平11−189976号公報には、ポリオレフィン繊維に撥水撥油性を付与する場合に、フッ素系撥水撥油剤に架橋剤を併用した処理浴でポリオレフィン繊維を処理した後、熱処理を行う方法が開示されているが、その効果はまだ不十分であり、特に撥油性が得られ難いものであった。
【0004】
【発明が解決しようとする課題】
本発明は、従って、ポリオレフィン繊維に対してフッ素系撥水撥油剤の性能を効果的に発揮させる方法であって、優れた撥水撥油性を有するポリオレフィン繊維を製造することのできる方法を提供することを目的とする。
【0005】
【課題を解決するための手段】
本発明者等は、上記課題を解決するために鋭意研究を重ねた結果、ポリオレフィン繊維を特定の溶解性パラメーター(SP)を有する水性樹脂エマルジョンで前処理した後に、フッ素系撥水撥油剤で処理することにより、優れた撥水撥油性を有するポリオレフィン繊維が得られることを見出し、この知見に基づき本発明を完成させる至ったものである。
【0006】
すなわち、本発明は、ポリオレフィン繊維に、溶解性パラメーター(SP)が7.5〜13.0である水性樹脂エマルジョンで処理し、次いでフッ素系撥水撥油剤で処理することを含む撥水撥油性ポリオレフィン繊維の製造方法を提供する。
【0007】
【発明の実施の形態】
本発明は、溶解性パラメーター(SP)が7.5〜13.0である水性樹脂エマルジョンでポリオレフィン繊維を処理した後、次いでフッ素系撥水撥油剤で処理することを含む撥水撥油性のポリオレフィン繊維の製造方法である。ここで、溶解性パラメーター(SP)は、沖津法(日本接着学会誌Vol.29、No.5(1993年))によって算出されるパラメーターであり、化合物の各原子団のモル引力定数を積算し、モル容積で除して求められるものである。
【0008】
本発明に用いることのできる水性樹脂エマルジョンとしては、溶解性パラメーター(SP)が7.5〜13.0である水性樹脂エマルジョンであれば特に制限は無いが、なかでも水性ポリウレタンエマルジョン、水性ポリイソシアネートエマルジョンおよび水性ポリアクリルエマルジョンが好ましい。
【0009】
水性ポリウレタンエマルジョンとしては、有機ポリイソシアネート化合物、高分子ポリオール化合物、アニオン性親水基と2個以上の活性水素を有する化合物および場合により用いられる鎖伸長剤を反応させて得られるイソシアネート基末端プレポリマーの中和物に、水溶性ポリアミン、ヒドラジンおよびそれらの誘導体から選ばれる1種以上の鎖伸長剤を加え、水中で鎖伸長して得られる共重合物が好ましい。
【0010】
上記の水性ポリウレタンエマルジョンを合成する際に用いられる有機ポリイソシアネート化合物としては、特に制限はないが、溶解性パラメーター(SP)が7.5〜13.0であるものが好ましく、例えば、ヘキサメチレンジイソシアネート、トリメチルヘキサメチレンジイソシアネートなどの脂肪族ジイソシアネート化合物、イソホロンジイソシアネート、ジシクロヘキシルメタンジイソシアネート、ビス(イソシアナートメチル)ノルボルナンなどの脂環式ジイソシアネート、トリレンジイソシアネート、キシリレンジイソシアネート、ジフェニルメタンジイソシアネート、ナフタレンジイソシアネートなどの芳香族ジイソシアネート等を挙げることができ、これらの有機ポリイソシアネート化合物をそれぞれ単独でまたは2種以上を組み合わせて用いることができる。
【0011】
本発明に用いられる水性ポリウレタンエマルジョンを合成する際に用いられる高分子ポリオール化合物としては、特に制限はないが、溶解性パラメーター(SP)が7.5〜13.0であるものが好ましく、このような溶解性パラメーター(SP)を有するポリエステルポリオール、ポリカーボネートポリオール、ポリエーテルポリオールを好適に用いることができる。
【0012】
ポリエステルポリオールとしては、例えば、ポリエチレンアジペート、ポリブチレンアジペート、ポリエチレンブチレンアジペート、ポリヘキサメチレンイソフタレートアジペート、ポリヘキサメチレンテレフタレートアジペート、ポリエチレンサクシネート、ポリブチレンサクシネート、ポリエチレンセバケート、ポリブチレンセバケート、ポリ−ε−カプロラクトン、ポリ(3−メチル−1,5−ペンチレンアジペート)、1,6−ヘキサンジオールとダイマー酸の重縮合物等を挙げることができる。
【0013】
ポリカーボネートポリオールとしては、例えば、ポリテトラメチレンカーボネートジオール、ポリヘキサメチレンカーボネートジオールなどを挙げることができる。
【0014】
ポリエーテルポリオールとしては、例えば、ポリエチレングリコール、ポリプロピレングリコール、ポリテトラメチレングリコールの単独重合体、及びこれらのブロック共重合体、ランダム共重合体などを挙げることができる。
【0015】
また、ポリエーテルポリオールとポリエステルポリオールを組み合わせた、ポリエーテルエステルポリオールを用いることもできる。これらの高分子ポリオール化合物は、それぞれ単独で用いてもよく、または2種以上を組み合わせて用いてもよい。
【0016】
水性ポリウレタンエマルジョンを合成する際に用いられるアニオン性親水基と2個以上の活性水素を有する化合物としては、例えば、2,2−ジメチロールプロピオン酸、2,2−ジメチロールブタン酸などを挙げることができる。これらの化合物は、それぞれ単独で用いてもよく、または2種以上を組み合わせて用いてもよい。
【0017】
本発明においては、アニオン性親水基と2個以上の活性水素を有する化合物のアニオン性親水基は、イソシアネート基末端プレポリマーを合成する前または合成の後に、トリメチルアミン、トリエチルアミン、トリ−n−プロピルアミン、トリブチルアミン、N−メチルジエタノールアミン、N,N−ジメチルモノエタノールアミン、トリエタノールアミンなどのアミン類、水酸化カリウム、水酸化ナトリウム、アンモニアなどにより中和されるのがよい。
【0018】
本発明に有用な水性ポリウレタンエマルジョンの具体例としては、アイオノマー型アクリルポリオール系ポリウレタンエマルジョンであるネオステッカー700(日華化学(株)製)、アクリルポリオール系ポリウレタンエマルジョンであるネオステッカー400(日華化学(株)製)、ポリマーラルポリオール系ポリウレタンエマルジョンであるエバファノールHA−10およびエバファノールHA−14(日華化学(株)製)などが挙げられる。
【0019】
本発明に有用な水性ポリイソシアネートエマルジョンは、イオン性界面活性剤および/またはノニオン性親水基含有化合物を含有する水分散型で、ポリイソシアネート分子内にビュレット、イソシアヌレート、ウレタン、ウレトジオン、アロファネートなどの構造を有するものであるのが好ましい。かかるポリイソシアネート分子を構成する化合物としては、脂肪族および脂環族ジイソシアネートがあり、例えば、テトラメチレンジイソシアネート、ペンタメチレンジイソシアネート、ヘキサメチレンジイソシアネート、トリメチルヘキサメチレンジイソシアネート、リジンジイソシアネート、イソホロンジイソシアネート、水添キシレンジイソシアネート、1,4−ジイソシアネートシクロヘキサンなどが挙げられる。
【0020】
本発明に有用な水性ポリイソシアネートエマルジョンの具体例としては、ヌレート型ポリイソシアネートエマルジョンであるバイヒジュール3100(住化バイエルウレタン(株)製)、NKアシストIS−80D(日華化学(株)製)、アダクト型ポリイソシアネートエマルジョンであるデュラネートWB−40−80D(旭化成工業(株)製)などが挙げられる。
【0021】
本発明に有用な水性アクリルエマルジョンは、アルキル基の炭素数が1〜12であるメタクリル酸アルキルエステルおよび/またはアルキル基の炭素数が1〜8であるアクリル酸アルキルエステルを含有するアクリル樹脂の水性エマルジョンであるのが好ましい。これらのメタクリル酸アルキルエステルおよびアクリル酸アルキルエステルのアルキル基は、ヒドロキシル基を有するアルキル基であってもよい。
【0022】
アルキル基の炭素数が1〜12であるメタクリル酸アルキルエステルとしては、例えば、メチルメタクリレート、エチルメタクリレート、2−ヒドロキシエチルメタクリレート、イソプロピルメタクリレート、n−プロピルメタクリレート、2−ヒドロキシプロピルメタクリレート、n−ブチルメタクリレート、イソブチルメタクリレート、2−ヒドロキシブチルメタクリレート、t−ブチルメタクリレート、シクロヘキシルメタクリレートなどを挙げることができる。
【0023】
また、アルキル基の炭素数が1〜8であるアクリル酸エステルとしては、例えば、エチルアクリレート、2−ヒドロキシエチルアクリレート、イソプロピルアクリレート、n−プロピルアクリレート、2−ヒドロキシプロピルアクリレート、n−ブチルアクリレート、イソブチルアクリレート、t−ブチルアクリレート、2−ヒドロキシブチルアクリレート、n−アミルアクリレート、イソアミルアクリレート、n−ヘキシルアクリレート、6−ヒドロキシヘキシルアクリレート、2−エチルブチルアクリレート、シクロペンチルアクリレート、シクロヘキシルアクリレート、n−オクチルアクリレート、2−エチルヘキシルアクリレートなどを挙げることができる。
【0024】
本発明に有用な水性アクリルエマルジョンの具体例としては、アクロナールシリーズ(BASFディスパージョン社製)、ニッポールシリーズ(日本ゼオン(株)製)などが挙げられる。
【0025】
本発明に用いることのできるフッ素系撥水撥油剤は、フルオロアルキル基を有する(メタ)アクリレートと、フルオロアルキル基を有する(メタ)アクリレートと共重合可能なフッ素を含まない単量体とを、水性液中で乳化重合して得られる共重合体組成物を含有する撥水撥油剤であるのが好ましい。ここで、フルオロアルキル基を有する(メタ)アクリレートとは、フルオロアルキル基を有するアクリレートまたはフルオロアルキル基を有するメタクリレートを意味する。本発明に有用なかかるフッ素系撥水撥油剤の具体例としては、NKガードNDN−FA、NKガードNDN−7E、NKガードNDN−23E、NKガードNDN−2000(いずれも日華化学(株)製)等が挙げられる。
【0026】
フルオロアルキル基を有する(メタ)アクリレートとしては、特に制限はないが、フルオロアルキル基の炭素数が3〜21のものが好ましく、特に6〜18のものが好ましい。好ましく用いられるフルオロアルキル基を有する(メタ)アクリレートとしては、例えば、次のような化合物が挙げられる。
【0027】
1. CF3 (CF2 )4 CH2 OCOC(CH3 )=CH2
2. CF3 (CF2 )7 (CH2 )2 OCOC(CH3 )=CH2
3. CF3 (CF2 )7 (CH2 )2 OCOCH=CH2
4. (CF3 )2 CF(CF2 )4 (CH2 )2 OCOCH=CH2
5. CF3 (CF2 )7 SO2 N(C3 H7 )(CH2 )2 OCOCH=CH2
6. CF3 (CF2 )7 (CH2 )4 OCOCH=CH2
7. CF3 (CF2 )7 SO2 N(CH3 )(CH2 )2 OCOC(CH3 )=CH2
8. CF3 (CF2 )7 SO2 N(C2 H5 )(CH2 )2 OCOCH=CH2
9. CF3 (CF2 )7 CONH(CH2 )2 OCOCH=CH2
10. (CF3 )2 CF(CF2 )6 (CH2 )3 OCOCH=CH2
11. (CF3 )2 CF(CF2 )8 CH2 CH(OCOCH3 )CH2 OCOC(CH3 )=CH2
12. (CF3 )2 CF(CF2 )8 CH2 CH(OH)CH2 OCOCH=CH2
13. CF3 (CF2 )9 (CH2 )2 OCOCH=CH2
14. CF3 (CF2 )9 (CH2 )2 OCOC(CH3 )=CH2
15. CF3 (CF2 )9 CONH(CH2 )2 OCOC(CH3 )=CH2
16. (CF2 Cl)(CF3 )CF(CF2 )7 CONH(CH2 )2 OCOCH=CH2
17. H(CF2 )10CH2 OCOCH=CH2
18. CF2 Cl(CF2 )10CH2 OCOC(CH3 )=CH2
19. CF3 (CF2 )5 (CH2 )2 O(CH2 )2 OCOCH=CH2
20. (CF2 Cl)(CF3 )CF(CF2 )7 CONH(CH2 )2 OCOCH=CH2
21. CF3 CF2 CH2 CH(OH)CH2 O(CH2 )2 OCOCH=CH2
これらのフルオロアルキル基を有する(メタ)アクリレートは、それぞれ単独で用いられてもよく、または2種以上を組み合わせて用いられてもよい。
【0028】
上記フルオロアルキル基を有する(メタ)アクリレートと共重合可能なフッ素を含まない単量体としては、特に制限はないが、例えば、ラウリルアクリレート、ラウリルメタクリレート、ステアリルアクリレート、ステアリルメタクリレート、グリシジルアクリレート、グリシジルメタクリレート、アジリジニルアクリレート、アジリジニルメタクリレート、2−ヒドロキシエチルアクリレート、2−ヒドロキシエチルメタクリレート、2−ヒドロキシプロピルアクリレート、2−ヒドロキシプロピルメタクリレート、3−クロロ−2−ヒドロキシプロピルメタクリレート、ベンジルアクリレート、ベンジルメタクリレート、シクロヘキシルアクリレート、シクロヘキシルメタクリレートなどのアクリル酸エステルまたはメタクリル酸エステル、アクリルアミド、メタクリルアミド、N−メチルロールアクリルアミド、N−メチロールメタクリルアミド、ジアセトンアクリルアミド、ジアセトンメタクリルアミド、メチロール化ジアセトンアクリルアミドなどのアクリルアミドまたはメタクリルアミド、その他マレイン酸アルキルエステル、フタル酸アルキルエステル、アルキレンジオールアクリレート、アルキレンジオールジメタクリレート、塩化ビニル、塩化ビニリデン、エチレン、酢酸ビニル、スチレン、α−メチルスチレン、β−メチルスチレン、ビニルアルキルエーテル、ハロゲン化アルキルビニルエーテル、ビニルアルキルケトン、無水マレイン酸、ブタジエン、イソプレン、クロロプレンなどが挙げられる。
【0029】
これらのフルオロアルキル基を有する(メタ)アクリレートと共重合可能なフッ素を含まない単量体は、それぞれ単独で用いられてもよく、または2種以上を組み合わせて用いられてもよい。
【0030】
フッ素系撥水撥油剤の製造の際の乳化重合における溶媒としては、通常、水性溶媒、特に水であることが好ましい。
【0031】
本発明に用いられるフッ素系撥水撥油剤に含有される共重合体組成物において、共重合体中のフルオロアルキル基を有する(メタ)アクリレートの割合は、全単量体100重量部に対して少なくとも40重量部以上であるのが好ましく、50〜80重量部であるのがさらに好ましい。また、このフルオロアルキル基を有する(メタ)アクリレートと共重合可能なフッ素を含まない単量体の割合は、全単量体100重量部に対して60重量部以下であるのが好ましく、50〜20重量部であるのがさらに好ましい。
【0032】
本発明に用いられるフッ素系撥水撥油剤に含有される共重合体組成物の製造において、乳化重合の際に用いられる界面活性剤や重合開始剤には特に制限はなく、従来より乳化重合で用いられている乳化剤としての非イオン界面活性剤、アニオン界面活性剤、カチオン界面活性剤、両性界面活性剤等の界面活性剤のいずれをも使用することができる。また、重合開始剤としては、有機過酸化物、アゾ化合物、過硫酸塩などの重合開始剤や、さらにはγ線のような電離性放射線などを用いることができる。
【0033】
本発明に用いられるポリオレフィン繊維としては、例えば、ポリエチレン、ポリプロピレンなどの繊維が挙げられ、またポリオレフィン繊維以外に他の繊維を含んでいてもよく、そのような他の繊維の例としてはポリエステル、ナイロンなどの合成繊維、綿、麻などの天然繊維、レーヨン、アセテートなどの半合成繊維との混合物が挙げられる。そして、その形態としては、繊維状のものや、糸、織物、編物、不織布などが挙げられ、いずれの形態であってもよい。不織布の形態にも特に制限はなく、例えば、スパンボンド不織布、メルトブロー不織布およびそれらの不織布を複数枚積載してなる積層不織布などが挙げられる。また、積層不織布を構成する各不織布は、異なる材質からなるものであってもよいし、同じ材質からなるものであってもよい。
【0034】
本発明の撥水撥油性ポリオレフィン繊維の製造方法においては、例えば、上記フッ素系撥水撥油剤でポリオレフィン繊維を処理するに先立ち、溶解性パラメーター(SP)が7.5〜13.0である上記水性樹脂エマルジョンをポリオレフィン繊維にスプレー法、浸漬法、塗布法などの従来公知の方法により、被処理物の表面に付着させる。また、付着させた後には、用いられた繊維素材や繊維形態などに応じた条件により、熱処理することが好ましい。その後、この前処理されたポリオレフィン繊維に上記フッ素系撥水撥油剤を、スプレー法、浸漬法、塗布法などの従来公知の方法により、被処理物の表面に付着させる。また、この場合も、付着させた後には、用いられた繊維素材や繊維形態などに応じた条件により、熱処理することが好ましい。このとき用いられる溶解性パラメーター(SP)が7.5〜13.0である水性樹脂エマルジョンは、被処理物に対して、0.1〜50重量%の量で付着されるのが好ましく、熱処理は60〜130℃で0.5〜10分間行われるのが好ましい。また、同様に、フッ素系撥水撥油剤も、被処理物に対して、0.1〜50重量%の量で付着されるのが好ましく、熱処理は60〜130℃で0.5〜10分間行われるのが好ましい。
【0035】
さらに、本発明の方法に用いられる処理液は、上記水性エマルジョンやフッ素系撥水撥油剤の所定量を溶媒に溶解することに調製することができる。ここで、用いられる溶媒としては、特に制限はなく、通常水が用いられるが、特に処理液中の各成分の分散性を向上させ、さらにはポリオレフィン繊維への塗布等の処理が容易となる点で、アセトン、メチルエチルケトンなどのケトン類、エチルアルコール、イソプロピルアルコールなどのアルコール類の適当量を処理浴に加えることが好ましい。
【0036】
【実施例】
以下、本発明を実施例によりさらに説明するが、本発明はこれらの実施例により何ら限定されるものではない。
【0037】
なお、実施例中に示す撥水性、撥油性は、以下のようにして評価した。
【0038】
撥水性
JIS L 1092(1998)のはっ水度試験(スプレー試験)に準じて評価した。撥水性の格付け基準を以下に示す。
【0039】
5:表面に湿潤や水滴の付着がないもの
4:表面に湿潤しないが、小さな水滴の付着を示すもの
3:表面に小さな個々の水滴状の湿潤を示すもの
2:表面の半分に湿潤を示し、小さな個々の湿潤が布を浸透する状態を示すもの
1:表面全体に湿潤を示すもの
撥油性
AATCCテスト法118(1992)に準じて評価した。撥油性の評価は、以下の格付けに示された試験液を試料布上に2箇所、数滴(径約5mm)置き、30秒後の浸透状態により判定する。
【0040】
8:n−ヘプタン
7:n−オクタン
6:n−デカン
5:n−ドデカン
4:n−テトラデカン
3:n−ヘキサデカン
2:n−ヘキサデカン/Kaydol(35/65)
1:Kaydol
0:1におよばないもの
なお、撥水性、撥油性の評価で、格付けの数値に+印を付したものは、その格付けよりも僅かに良好なことを示し、−印を付したものは、その格付けよりも僅かに劣ることを示す。
【0041】
また、実施例中で用いたフッ素系撥水撥油剤は、次の製造例に示す方法により製造されたものである。
【0042】
製造例1
500mLフラスコにCn F2n+1CH2 CH2 OCOCH=CH2 (n=6、8、10、12、14:平均8)57.6g、ステアリルアクリレート17.8g、N−メチロールアクリルアミド1.2g、純水162.9g、トリプロピレングリコール33g、ポリオキシエチレン(10モル)ラウリルエーテル8.6gおよびステアリルトリメチルアンモニウムクロライド1.9gを入れ、45℃で攪拌混合し、超音波をかけて乳化分散させた。得られた乳化物を1Lオートクレーブに仕込み、2,2’−アゾビス(2−メチルプロピオンアミジン)二塩酸塩1gを添加し、密閉した後、塩化ビニル16gを圧入し、60℃で6時間反応させて、有効成分が30重量%であるフッ素系撥水撥油剤を得た。
【0043】
製造例2
500mLフラスコにCn F2n+1CH2 CH2 OCOCH=CH2 (n=6、8、10、12、14:平均8)85g、ステアリルアクリレート60g、グリシジルメタクリレート5g、純水240g、トリプロピレングリコール50g、ポリオキシエチレン(10モル)ラウリルエーテル15gおよびステアリルトリメチルアンモニウムクロライド6gを入れ、45℃で攪拌混合し、超音波をかけて乳化分散させた。次いで、2,2’−アゾビス(2−メチルプロピオンアミジン)二塩酸塩1.5gを添加し、50℃で4時間反応させて、有効成分が30重量%であるフッ素系撥水撥油剤を得た。
【0044】
実施例1
ポリプロピレン繊維からなるスパンポンド不織布を、NKアシストIS−80D(水性ポリイソシアネートエマルジョン、溶解性パラメーター(SP)9.2、日華化学(株)製、有効成分80重量%)0.5重量%およびイソプロピルアルコール5重量%の水分散液に浸漬し、マングルで絞った(ピックアップ120%)後、110℃で1分間熱処理した。
【0045】
次いで、上記スパンボンド不織布を製造例1で得られたフッ素系撥水撥油剤4重量%およびイソプロピルアルコール5重量%の水分散液に浸漬し、マングルで絞った(ピックアップ120%)後、110℃で1分間熱処理して、撥水撥油性ポリオレフィン繊維布を得た。
【0046】
この撥水撥油性ポリオレフィン繊維布の撥水性および撥油性を評価した結果を表1に示す。
【0047】
実施例2
ポリプロピレン繊維からなるスパンポンド不織布を、ネオステッカー700(水性ポリウレタンエマルジョン、溶解性パラメーター(SP)11.0、日華化学(株)製、有効成分35重量%)1重量%およびイソプロピルアルコール5重量%の水分散液に浸漬し、マングルで絞った(ピックアップ120%)後、110℃で1分間熱処理した。
【0048】
次いで、上記スパンボンド不織布を製造例1で得られたフッ素系撥水撥油剤4重量%およびイソプロピルアルコール5重量%の水分散液に浸漬し、マングルで絞った(ピックアップ120%)後、110℃で1分間熱処理して、撥水撥油性ポリオレフィン繊維布を得た。
【0049】
この撥水撥油性ポリオレフィン繊維布の撥水性および撥油性を評価した結果を表1に示す。
【0050】
実施例3
フッ素系撥水撥油剤を製造例2で得られたフッ素系撥水撥油剤に代えたことを除き、実施例1の操作を繰り返して、撥水撥油性ポリオレフィン繊維布を得た。この撥水撥油性ポリオレフィン繊維布の撥水性および撥油性を評価した結果を表1に示す。
【0051】
実施例4
フッ素系撥水撥油剤を製造例2で得られたフッ素系撥水撥油剤に代えたことを除き、実施例1の操作を繰り返して、撥水撥油性ポリオレフィン繊維布を得た。この撥水撥油性ポリオレフィン繊維布の撥水性および撥油性を評価した結果を表1に示す。
【0052】
比較例1
ポリプロピレンからなるスパンポンド不織布を、製造例1で得られたフッ素系撥水撥油剤4重量%およびイソプロピルアルコール5重量%の水分散液に浸漬し、マングルで絞った(ピックアップ120%)後、110℃で1分間熱処理して、処理ポリオレフィン繊維布を得た。
【0053】
この処理ポリオレフィン繊維布の撥水性および撥油性を評価した結果を表1に示す。
【0054】
比較例2
ポリプロピレンからなるスパンポンド不織布を、NKアシストIS−80D(水性ポリイソシアネートエマルジョン、溶解性パラメーター(SP)9.2、日華化学(株)製、有効成分80重量%)1重量%、製造例1で得られたフッ素系撥水撥油剤4重量%およびイソプロピルアルコール5重量%の水分散液に浸漬し、マングルで絞った(ピックアップ120%)後、110℃で1分間熱処理して、処理ポリオレフィン繊維布を得た。
【0055】
この処理ポリオレフィン繊維布の撥水性および撥油性を評価した結果を表1に示す。
【0056】
比較例3
ポリプロピレンからなるスパンポンド不織布を、ネオステッカー700(水性ポリウレタンエマルジョン、溶解性パラメーター(SP)11.0、日華化学(株)製、有効成分35重量%)0.5重量%および製造例1で得られたフッ素系撥水撥油剤4重量%の水分散液に浸漬し、マングルで絞った(ピックアップ120%)後、110℃で1分間熱処理して、処理ポリオレフィン繊維布を得た。
【0057】
この処理ポリオレフィン繊維布の撥水性および撥油性を評価した結果を表1に示す。
【0058】
比較例4
フッ素系撥水撥油剤を製造例2で得られたフッ素系撥水撥油剤に代えたことを除き、比較例1の操作を繰り返して、処理ポリオレフィン繊維布を得た。
【0059】
この処理ポリオレフィン繊維布の撥水性および撥油性を評価した結果を表1に示す。
【0060】
比較例5
フッ素系撥水撥油剤を製造例2で得られたフッ素系撥水撥油剤に代えたことを除き、比較例2の操作を繰り返して、処理ポリオレフィン繊維布を得た。
【0061】
この処理ポリオレフィン繊維布の撥水性および撥油性を評価した結果を表1に示す。
【0062】
比較例6
フッ素系撥水撥油剤を製造例2で得られたフッ素系撥水撥油剤に代えたことを除き、比較例3の操作を繰り返して、処理ポリオレフィン繊維布を得た。
【0063】
この処理ポリオレフィン繊維布の撥水性および撥油性を評価した結果を表1に示す。
【0064】
【表1】
【0065】
表1に示す結果からわかるよう、本発明の実施例1〜4のポリオレフィン繊維布は、比較例1〜6で得られたポリオレフィン繊維布に比べ、撥水性および撥油性がともに大幅に改善されている。
【0066】
【発明の効果】
本発明の方法により得られる撥水撥油性ポリオレフィン繊維は、撥水性および、特に撥油性に優れているため、各種用途に幅広く用いることが期待できる。例えば、ポリオレフィン繊維が不織布の場合、手術用ガウン、シーツ、シューズカバー、キャップ、エプロンなどの医療材、紙おむつなどの衛生材、各種保護具、包装材などの工業資材、風呂敷などの包装材、ランドリー袋などの収納用品、エプロンなどの家庭用材の素材として好適である。また、カーペットなどへの応用も期待できる。[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a method for producing a polyolefin fiber imparted with good water repellency and oil repellency.
[0002]
[Prior art]
Conventionally, in order to impart water / oil repellency to a fiber, it is known to use a fluorine-based water / oil repellent in which a polymer of a compound such as a (meth) acrylate containing a fluoroalkyl group is dispersed in water. . In the case of imparting water repellency and oil repellency to synthetic fibers with such a fluorine-based water and oil repellent, water repellency and oil repellency can be obtained relatively easily with synthetic fibers such as polyester and nylon. It is difficult to obtain water repellency and particularly oil repellency. This is believed to be due to the relatively hydrophobic surface characteristics of the polyolefin fibers.
[0003]
Japanese Patent Application Laid-Open No. 11-189976 discloses a method in which when a polyolefin fiber is imparted with water and oil repellency, the polyolefin fiber is treated with a treatment bath in which a fluorinated water and oil repellent is used in combination with a crosslinking agent, followed by heat treatment. Although disclosed, the effect is still insufficient, and oil repellency is particularly difficult to obtain.
[0004]
[Problems to be solved by the invention]
Accordingly, the present invention provides a method for effectively producing the performance of a fluorine-based water and oil repellent agent on polyolefin fibers, and capable of producing polyolefin fibers having excellent water and oil repellency. For the purpose.
[0005]
[Means for Solving the Problems]
As a result of intensive studies to solve the above problems, the present inventors have pretreated polyolefin fibers with an aqueous resin emulsion having a specific solubility parameter (SP), and then treated them with a fluorine-based water and oil repellent. As a result, it has been found that polyolefin fibers having excellent water and oil repellency can be obtained, and the present invention has been completed based on this finding.
[0006]
That is, the present invention provides a water and oil repellency comprising treating a polyolefin fiber with an aqueous resin emulsion having a solubility parameter (SP) of 7.5 to 13.0, and then treating with a fluorine-based water and oil repellent. A method for producing a polyolefin fiber is provided.
[0007]
DETAILED DESCRIPTION OF THE INVENTION
The present invention relates to a water- and oil-repellent polyolefin comprising treating a polyolefin fiber with an aqueous resin emulsion having a solubility parameter (SP) of 7.5 to 13.0 and then treating with a fluorine-based water and oil repellent. It is a manufacturing method of a fiber. Here, the solubility parameter (SP) is a parameter calculated by the Okitsu method (Journal of Adhesion Society of Japan Vol. 29, No. 5 (1993)), and the molar attractive constant of each atomic group of the compound is integrated. , Divided by molar volume.
[0008]
The aqueous resin emulsion that can be used in the present invention is not particularly limited as long as it is an aqueous resin emulsion having a solubility parameter (SP) of 7.5 to 13.0, among which an aqueous polyurethane emulsion, an aqueous polyisocyanate. Emulsions and aqueous polyacrylic emulsions are preferred.
[0009]
Examples of the aqueous polyurethane emulsion include an organic polyisocyanate compound, a polymer polyol compound, a compound having an anionic hydrophilic group and two or more active hydrogens, and an isocyanate group-terminated prepolymer obtained by reacting an optional chain extender. A copolymer obtained by adding one or more chain extenders selected from water-soluble polyamines, hydrazine and derivatives thereof to the neutralized product and extending the chain in water is preferable.
[0010]
Although there is no restriction | limiting in particular as an organic polyisocyanate compound used when synthesize | combining said aqueous polyurethane emulsion, Although a solubility parameter (SP) is 7.5-13.0, for example, a hexamethylene diisocyanate is preferable. , Aliphatic diisocyanate compounds such as trimethylhexamethylene diisocyanate, alicyclic diisocyanates such as isophorone diisocyanate, dicyclohexylmethane diisocyanate, bis (isocyanatomethyl) norbornane, aromatics such as tolylene diisocyanate, xylylene diisocyanate, diphenylmethane diisocyanate, naphthalene diisocyanate Diisocyanate and the like can be mentioned, and these organic polyisocyanate compounds can be used alone or in combination of two or more. It can be used in conjunction seen.
[0011]
The polymer polyol compound used in synthesizing the aqueous polyurethane emulsion used in the present invention is not particularly limited, but preferably has a solubility parameter (SP) of 7.5 to 13.0. Polyester polyol, polycarbonate polyol and polyether polyol having a good solubility parameter (SP) can be preferably used.
[0012]
Examples of the polyester polyol include polyethylene adipate, polybutylene adipate, polyethylene butylene adipate, polyhexamethylene isophthalate adipate, polyhexamethylene terephthalate adipate, polyethylene succinate, polybutylene succinate, polyethylene sebacate, polybutylene sebacate, poly Examples include -ε-caprolactone, poly (3-methyl-1,5-pentylene adipate), polycondensate of 1,6-hexanediol and dimer acid.
[0013]
Examples of the polycarbonate polyol include polytetramethylene carbonate diol and polyhexamethylene carbonate diol.
[0014]
Examples of the polyether polyol include polyethylene glycol, polypropylene glycol, polytetramethylene glycol homopolymers, block copolymers, and random copolymers thereof.
[0015]
Moreover, the polyether ester polyol which combined polyether polyol and polyester polyol can also be used. These polymer polyol compounds may be used alone or in combination of two or more.
[0016]
Examples of the compound having an anionic hydrophilic group and two or more active hydrogens used in the synthesis of the aqueous polyurethane emulsion include 2,2-dimethylolpropionic acid and 2,2-dimethylolbutanoic acid. Can do. These compounds may be used alone or in combination of two or more.
[0017]
In the present invention, the anionic hydrophilic group of the compound having an anionic hydrophilic group and two or more active hydrogens is trimethylamine, triethylamine, tri-n-propylamine before or after the synthesis of the isocyanate group-terminated prepolymer. And neutralized with amines such as tributylamine, N-methyldiethanolamine, N, N-dimethylmonoethanolamine, triethanolamine, potassium hydroxide, sodium hydroxide, ammonia and the like.
[0018]
Specific examples of the aqueous polyurethane emulsion useful in the present invention include Neo Sticker 700 (manufactured by Nikka Chemical Co., Ltd.), which is an ionomer type acrylic polyol polyurethane emulsion, and Neo Sticker 400 (Nikka Chemical), which is an acrylic polyol polyurethane emulsion. And Evaphanol HA-10 and Evaphanol HA-14 (manufactured by Nikka Chemical Co., Ltd.) which are polymer polyol polyol polyurethane emulsions.
[0019]
The aqueous polyisocyanate emulsion useful in the present invention is a water-dispersed type containing an ionic surfactant and / or a nonionic hydrophilic group-containing compound, such as burette, isocyanurate, urethane, uretdione, and allophanate in the polyisocyanate molecule. It is preferable to have a structure. Examples of the compound constituting the polyisocyanate molecule include aliphatic and alicyclic diisocyanates, such as tetramethylene diisocyanate, pentamethylene diisocyanate, hexamethylene diisocyanate, trimethylhexamethylene diisocyanate, lysine diisocyanate, isophorone diisocyanate, hydrogenated xylene diisocyanate. 1,4-diisocyanate cyclohexane and the like.
[0020]
Specific examples of the aqueous polyisocyanate emulsion useful in the present invention include bairate 3100 (manufactured by Sumika Bayer Urethane Co., Ltd.), NK assist IS-80D (manufactured by Nikka Chemical Co., Ltd.), which is a nurate type polyisocyanate emulsion, Examples thereof include Duranate WB-40-80D (manufactured by Asahi Kasei Kogyo Co., Ltd.), which is an adduct type polyisocyanate emulsion.
[0021]
The aqueous acrylic emulsion useful in the present invention is an aqueous acrylic resin containing an alkyl methacrylate having an alkyl group having 1 to 12 carbon atoms and / or an alkyl acrylate having an alkyl group having 1 to 8 carbon atoms. An emulsion is preferred. The alkyl group of these methacrylic acid alkyl ester and acrylic acid alkyl ester may be an alkyl group having a hydroxyl group.
[0022]
Examples of the alkyl methacrylate having 1 to 12 carbon atoms in the alkyl group include, for example, methyl methacrylate, ethyl methacrylate, 2-hydroxyethyl methacrylate, isopropyl methacrylate, n-propyl methacrylate, 2-hydroxypropyl methacrylate, and n-butyl methacrylate. , Isobutyl methacrylate, 2-hydroxybutyl methacrylate, t-butyl methacrylate, cyclohexyl methacrylate and the like.
[0023]
Examples of the acrylic acid ester having an alkyl group with 1 to 8 carbon atoms include ethyl acrylate, 2-hydroxyethyl acrylate, isopropyl acrylate, n-propyl acrylate, 2-hydroxypropyl acrylate, n-butyl acrylate, and isobutyl. Acrylate, t-butyl acrylate, 2-hydroxybutyl acrylate, n-amyl acrylate, isoamyl acrylate, n-hexyl acrylate, 6-hydroxyhexyl acrylate, 2-ethylbutyl acrylate, cyclopentyl acrylate, cyclohexyl acrylate, n-octyl acrylate, 2 -Ethylhexyl acrylate can be mentioned.
[0024]
Specific examples of the aqueous acrylic emulsion useful in the present invention include the acronal series (BASF Dispersion), the Nippon series (manufactured by Nippon Zeon Co., Ltd.), and the like.
[0025]
The fluorine-based water and oil repellent that can be used in the present invention comprises a (meth) acrylate having a fluoroalkyl group and a fluorine-free monomer copolymerizable with a (meth) acrylate having a fluoroalkyl group, A water / oil repellent containing a copolymer composition obtained by emulsion polymerization in an aqueous liquid is preferred. Here, the (meth) acrylate having a fluoroalkyl group means an acrylate having a fluoroalkyl group or a methacrylate having a fluoroalkyl group. Specific examples of such fluorine-based water and oil repellents useful in the present invention include NK guard NDN-FA, NK guard NDN-7E, NK guard NDN-23E, and NK guard NDN-2000 (all of which are Nikka Chemical Co., Ltd.) Manufactured) and the like.
[0026]
The (meth) acrylate having a fluoroalkyl group is not particularly limited, but those having 3 to 21 carbon atoms of the fluoroalkyl group are preferable, and those having 6 to 18 carbon atoms are particularly preferable. Examples of the (meth) acrylate having a fluoroalkyl group preferably used include the following compounds.
[0027]
1. CFThree (CF2 )Four CH2 OCOC (CHThree ) = CH2
2. CFThree (CF2 )7 (CH2 )2 OCOC (CHThree ) = CH2
3. CFThree (CF2 )7 (CH2 )2 OCOCH = CH2
4). (CFThree )2 CF (CF2 )Four (CH2 )2 OCOCH = CH2
5. CFThree (CF2 )7 SO2 N (CThree H7 ) (CH2 )2 OCOCH = CH2
6). CFThree (CF2 )7 (CH2 )Four OCOCH = CH2
7. CFThree (CF2 )7 SO2 N (CHThree ) (CH2 )2 OCOC (CHThree ) = CH2
8). CFThree (CF2 )7 SO2 N (C2 HFive ) (CH2 )2 OCOCH = CH2
9. CFThree (CF2 )7 CONH (CH2 )2 OCOCH = CH2
10. (CFThree )2 CF (CF2 )6 (CH2 )Three OCOCH = CH2
11. (CFThree )2 CF (CF2 )8 CH2 CH (OCOCHThree ) CH2 OCOC (CHThree ) = CH2
12 (CFThree )2 CF (CF2 )8 CH2 CH (OH) CH2 OCOCH = CH2
13. CFThree (CF2 )9 (CH2 )2 OCOCH = CH2
14 CFThree (CF2 )9 (CH2 )2 OCOC (CHThree ) = CH2
15. CFThree (CF2 )9 CONH (CH2 )2 OCOC (CHThree ) = CH2
16. (CF2 Cl) (CFThree ) CF (CF2 )7 CONH (CH2 )2 OCOCH = CH2
17. H (CF2 )TenCH2 OCOCH = CH2
18. CF2 Cl (CF2 )TenCH2 OCOC (CHThree ) = CH2
19. CFThree (CF2 )Five (CH2 )2 O (CH2 )2 OCOCH = CH2
20. (CF2 Cl) (CFThree ) CF (CF2 )7 CONH (CH2 )2 OCOCH = CH2
21. CFThree CF2 CH2 CH (OH) CH2 O (CH2 )2 OCOCH = CH2
These (meth) acrylates having a fluoroalkyl group may be used alone or in combination of two or more.
[0028]
The fluorine-free monomer copolymerizable with the (meth) acrylate having the fluoroalkyl group is not particularly limited, and examples thereof include lauryl acrylate, lauryl methacrylate, stearyl acrylate, stearyl methacrylate, glycidyl acrylate, and glycidyl methacrylate. Aziridinyl acrylate, aziridinyl methacrylate, 2-hydroxyethyl acrylate, 2-hydroxyethyl methacrylate, 2-hydroxypropyl acrylate, 2-hydroxypropyl methacrylate, 3-chloro-2-hydroxypropyl methacrylate, benzyl acrylate, benzyl methacrylate Acrylates or methacrylic acid esters such as cyclohexyl acrylate and cyclohexyl methacrylate Acrylamide, methacrylamide such as acrylamide, methacrylamide, N-methylol acrylamide, N-methylol methacrylamide, diacetone acrylamide, diacetone methacrylamide, methylolated diacetone acrylamide, other maleic acid alkyl ester, phthalic acid alkyl ester, Alkylenediol acrylate, alkylenediol dimethacrylate, vinyl chloride, vinylidene chloride, ethylene, vinyl acetate, styrene, α-methylstyrene, β-methylstyrene, vinyl alkyl ether, halogenated alkyl vinyl ether, vinyl alkyl ketone, maleic anhydride, butadiene , Isoprene, chloroprene and the like.
[0029]
These fluorine-free monomers copolymerizable with the (meth) acrylate having a fluoroalkyl group may be used singly or in combination of two or more.
[0030]
As a solvent in emulsion polymerization in the production of a fluorine-based water / oil repellent, it is usually preferable to use an aqueous solvent, particularly water.
[0031]
In the copolymer composition contained in the fluorine-based water / oil repellent used in the present invention, the proportion of the (meth) acrylate having a fluoroalkyl group in the copolymer is 100 parts by weight of the total monomers. The amount is preferably at least 40 parts by weight, and more preferably 50 to 80 parts by weight. Further, the proportion of the fluorine-free monomer copolymerizable with the (meth) acrylate having a fluoroalkyl group is preferably 60 parts by weight or less with respect to 100 parts by weight of the total monomers, More preferably, it is 20 parts by weight.
[0032]
In the production of the copolymer composition contained in the fluorine-based water and oil repellent used in the present invention, there is no particular limitation on the surfactant and polymerization initiator used in the emulsion polymerization, and emulsion polymerization has been conventionally performed. Any of surfactants such as a nonionic surfactant, an anionic surfactant, a cationic surfactant, and an amphoteric surfactant can be used as an emulsifier. Moreover, as a polymerization initiator, polymerization initiators, such as an organic peroxide, an azo compound, and a persulfate, Furthermore, ionizing radiation like a gamma ray etc. can be used.
[0033]
Examples of the polyolefin fiber used in the present invention include fibers such as polyethylene and polypropylene, and other fibers may be included in addition to the polyolefin fibers. Examples of such other fibers include polyester and nylon. And synthetic fibers such as cotton, natural fibers such as hemp, and semi-synthetic fibers such as rayon and acetate. And as the form, a fibrous thing, a thread | yarn, a textile fabric, a knitted fabric, a nonwoven fabric etc. are mentioned, Any form may be sufficient. There is no restriction | limiting in particular also in the form of a nonwoven fabric, For example, the spun bond nonwoven fabric, the melt blown nonwoven fabric, and the lamination | stacking nonwoven fabric formed by laminating | stacking those nonwoven fabrics etc. are mentioned. Moreover, each nonwoven fabric which comprises a laminated nonwoven fabric may consist of a different material, and may consist of the same material.
[0034]
In the method for producing a water- and oil-repellent polyolefin fiber of the present invention, for example, the solubility parameter (SP) is 7.5 to 13.0 before the polyolefin fiber is treated with the fluorine-based water- and oil-repellent agent. The aqueous resin emulsion is adhered to the surface of an object to be treated by a conventionally known method such as spraying, dipping, or coating methods on polyolefin fibers. Moreover, after making it adhere, it is preferable to heat-process on the conditions according to the used fiber raw material, fiber form, etc. Thereafter, the fluorine-based water / oil repellent agent is adhered to the surface of the object to be treated by a conventionally known method such as spraying, dipping or coating. Also in this case, it is preferable to heat-treat after adhesion under the conditions according to the fiber material and fiber form used. The aqueous resin emulsion having a solubility parameter (SP) of 7.5 to 13.0 used at this time is preferably attached in an amount of 0.1 to 50% by weight with respect to the object to be treated. Is preferably carried out at 60 to 130 ° C. for 0.5 to 10 minutes. Similarly, the fluorine-based water and oil repellent is preferably attached in an amount of 0.1 to 50% by weight with respect to the object to be processed, and the heat treatment is performed at 60 to 130 ° C. for 0.5 to 10 minutes. Preferably it is done.
[0035]
Furthermore, the treatment liquid used in the method of the present invention can be prepared by dissolving a predetermined amount of the above-mentioned aqueous emulsion or fluorine-based water / oil repellent in a solvent. Here, the solvent to be used is not particularly limited, and water is usually used. In particular, it improves the dispersibility of each component in the treatment liquid, and further facilitates treatment such as application to polyolefin fibers. It is preferable to add an appropriate amount of ketones such as acetone and methyl ethyl ketone and alcohols such as ethyl alcohol and isopropyl alcohol to the treatment bath.
[0036]
【Example】
EXAMPLES Hereinafter, although an Example demonstrates this invention further, this invention is not limited at all by these Examples.
[0037]
The water repellency and oil repellency shown in the examples were evaluated as follows.
[0038]
Water repellency
Evaluation was performed according to the water repellency test (spray test) of JIS L 1092 (1998). The rating criteria for water repellency are shown below.
[0039]
5: No wet or water droplets on the surface
4: Does not wet on the surface, but shows adhesion of small water droplets
3: Indicating small individual water droplets on the surface
2: Indicating wetness on half of the surface, showing small individual wetness penetrating the fabric
1: Wet on the entire surface
Oil repellency
Evaluation was performed according to AATCC test method 118 (1992). The oil repellency is evaluated by placing a few drops (about 5 mm in diameter) of the test solution shown in the following rating on the sample cloth and determining the penetration state after 30 seconds.
[0040]
8: n-heptane
7: n-octane
6: n-decane
5: n-dodecane
4: n-tetradecane
3: n-hexadecane
2: n-hexadecane / Kaydol (35/65)
1: Kaydol
Less than 0: 1
In addition, in the evaluation of water repellency and oil repellency, those with a + mark on the rating value indicate slightly better than the rating, and those with a-mark are slightly inferior to the rating. It shows that.
[0041]
Moreover, the fluorine-type water and oil repellent used in the Example was manufactured by the method shown to the following manufacture example.
[0042]
Production Example 1
C in a 500 mL flaskn F2n + 1CH2 CH2 OCOCH = CH2 (N = 6, 8, 10, 12, 14: average 8) 57.6 g, stearyl acrylate 17.8 g, N-methylolacrylamide 1.2 g, pure water 162.9 g, tripropylene glycol 33 g, polyoxyethylene (10 Mol) 8.6 g of lauryl ether and 1.9 g of stearyltrimethylammonium chloride were added, stirred and mixed at 45 ° C., and emulsified and dispersed by applying ultrasonic waves. The obtained emulsion was charged into a 1 L autoclave, 1 g of 2,2′-azobis (2-methylpropionamidine) dihydrochloride was added and sealed, and then 16 g of vinyl chloride was injected and reacted at 60 ° C. for 6 hours. Thus, a fluorine-based water and oil repellent having an active ingredient of 30% by weight was obtained.
[0043]
Production Example 2
C in a 500 mL flaskn F2n + 1CH2 CH2 OCOCH = CH2 (N = 6, 8, 10, 12, 14: average 8) 85 g, stearyl acrylate 60 g, glycidyl methacrylate 5 g, pure water 240 g, tripropylene glycol 50 g, polyoxyethylene (10 mol) lauryl ether 15 g and stearyl trimethyl ammonium chloride 6 g was added, stirred and mixed at 45 ° C., and emulsified and dispersed by applying ultrasonic waves. Next, 1.5 g of 2,2′-azobis (2-methylpropionamidine) dihydrochloride was added and reacted at 50 ° C. for 4 hours to obtain a fluorine-based water and oil repellent having an active ingredient of 30% by weight. It was.
[0044]
Example 1
A spun pond non-woven fabric made of polypropylene fiber was added to NK Assist IS-80D (aqueous polyisocyanate emulsion, solubility parameter (SP) 9.2, manufactured by Nikka Chemical Co., Ltd., active ingredient 80% by weight) 0.5% by weight and After immersing in an aqueous dispersion of 5% by weight of isopropyl alcohol and squeezing with mangle (pickup 120%), heat treatment was performed at 110 ° C. for 1 minute.
[0045]
Next, the spunbonded nonwoven fabric was immersed in an aqueous dispersion of 4% by weight of the fluorine-based water / oil repellent obtained in Production Example 1 and 5% by weight of isopropyl alcohol, squeezed with a mangle (pickup 120%), and then 110 ° C. Was heat treated for 1 minute to obtain a water / oil repellent polyolefin fiber cloth.
[0046]
Table 1 shows the results of evaluating the water repellency and oil repellency of this water / oil repellent polyolefin fiber cloth.
[0047]
Example 2
A spun pond non-woven fabric made of polypropylene fiber is coated with Neo sticker 700 (aqueous polyurethane emulsion, solubility parameter (SP) 11.0, manufactured by Nikka Chemical Co., Ltd., active ingredient 35% by weight) 1% by weight and isopropyl alcohol 5% by weight. After being dipped in an aqueous dispersion of squeezed and squeezed with mangle (pickup 120%), it was heat treated at 110 ° C. for 1 minute.
[0048]
Next, the spunbonded nonwoven fabric was immersed in an aqueous dispersion of 4% by weight of the fluorine-based water / oil repellent obtained in Production Example 1 and 5% by weight of isopropyl alcohol, squeezed with a mangle (pickup 120%), and then 110 ° C. Was heat treated for 1 minute to obtain a water / oil repellent polyolefin fiber cloth.
[0049]
Table 1 shows the results of evaluating the water repellency and oil repellency of this water / oil repellent polyolefin fiber cloth.
[0050]
Example 3
The operation of Example 1 was repeated except that the fluorinated water / oil repellent was replaced with the fluorinated water / oil repellent obtained in Production Example 2 to obtain a water / oil repellent polyolefin fiber cloth. Table 1 shows the results of evaluating the water repellency and oil repellency of this water / oil repellent polyolefin fiber cloth.
[0051]
Example 4
The operation of Example 1 was repeated except that the fluorinated water / oil repellent was replaced with the fluorinated water / oil repellent obtained in Production Example 2 to obtain a water / oil repellent polyolefin fiber cloth. Table 1 shows the results of evaluating the water repellency and oil repellency of this water / oil repellent polyolefin fiber cloth.
[0052]
Comparative Example 1
A spun pond non-woven fabric made of polypropylene was immersed in an aqueous dispersion of 4% by weight of the fluorine-based water / oil repellent obtained in Production Example 1 and 5% by weight of isopropyl alcohol, squeezed with a mangle (pickup 120%), 110 Heat treated at 1 ° C. for 1 minute to obtain a treated polyolefin fiber cloth.
[0053]
The results of evaluating the water repellency and oil repellency of this treated polyolefin fiber cloth are shown in Table 1.
[0054]
Comparative Example 2
1% by weight of spun pond nonwoven fabric made of polypropylene, NK Assist IS-80D (aqueous polyisocyanate emulsion, solubility parameter (SP) 9.2, Nikka Chemical Co., Ltd., active ingredient 80% by weight), Production Example 1 After being immersed in an aqueous dispersion of 4% by weight of the fluorinated water / oil repellent and 5% by weight of isopropyl alcohol obtained in the above step, squeezed with mangle (pickup 120%), heat treated at 110 ° C. for 1 minute, and treated polyolefin fiber I got a cloth.
[0055]
The results of evaluating the water repellency and oil repellency of this treated polyolefin fiber cloth are shown in Table 1.
[0056]
Comparative Example 3
A spun pond non-woven fabric made of polypropylene is 0.5% by weight of Neo Sticker 700 (aqueous polyurethane emulsion, solubility parameter (SP) 11.0, manufactured by Nikka Chemical Co., Ltd., 35% by weight of active ingredient) and Production Example 1. The resulting fluorine-based water / oil repellent was immersed in an aqueous dispersion of 4% by weight, squeezed with mangle (pickup 120%), and then heat treated at 110 ° C. for 1 minute to obtain a treated polyolefin fiber cloth.
[0057]
The results of evaluating the water repellency and oil repellency of this treated polyolefin fiber cloth are shown in Table 1.
[0058]
Comparative Example 4
The operation of Comparative Example 1 was repeated except that the fluorine-based water / oil repellent was replaced with the fluorine-based water / oil repellent obtained in Production Example 2 to obtain a treated polyolefin fiber cloth.
[0059]
The results of evaluating the water repellency and oil repellency of this treated polyolefin fiber cloth are shown in Table 1.
[0060]
Comparative Example 5
The operation of Comparative Example 2 was repeated except that the fluorine-based water / oil repellent was replaced with the fluorine-based water / oil repellent obtained in Production Example 2 to obtain a treated polyolefin fiber cloth.
[0061]
The results of evaluating the water repellency and oil repellency of this treated polyolefin fiber cloth are shown in Table 1.
[0062]
Comparative Example 6
A treated polyolefin fiber cloth was obtained by repeating the operation of Comparative Example 3 except that the fluorinated water / oil repellent was replaced with the fluorinated water / oil repellent obtained in Production Example 2.
[0063]
The results of evaluating the water repellency and oil repellency of this treated polyolefin fiber cloth are shown in Table 1.
[0064]
[Table 1]
[0065]
As can be seen from the results shown in Table 1, both the water repellency and oil repellency of the polyolefin fiber cloths of Examples 1 to 4 of the present invention were significantly improved as compared to the polyolefin fiber cloths obtained in Comparative Examples 1 to 6. Yes.
[0066]
【The invention's effect】
The water / oil repellent polyolefin fiber obtained by the method of the present invention is excellent in water repellency and particularly oil repellency, and therefore can be expected to be widely used in various applications. For example, when the polyolefin fiber is non-woven fabric, medical materials such as surgical gowns, sheets, shoe covers, caps and aprons, hygiene materials such as disposable diapers, various protective equipment, industrial materials such as packaging materials, packaging materials such as furoshiki, laundry It is suitable as a storage material such as a bag and a material for household materials such as an apron. In addition, application to carpets can be expected.
Claims (5)
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010150725A (en) * | 2008-12-26 | 2010-07-08 | Mitsui Chemicals Inc | Synthetic fiber fabric |
| JP2013177726A (en) * | 2013-05-13 | 2013-09-09 | Mitsui Chemicals Inc | Synthetic fiber structure |
| JP2016075022A (en) * | 2015-12-08 | 2016-05-12 | 三井化学株式会社 | Synthetic fiber structure |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP4563041B2 (en) * | 2004-01-27 | 2010-10-13 | 日華化学株式会社 | Porous structure manufacturing method, porous structure and leather-like structure |
| JP2006207060A (en) * | 2005-01-27 | 2006-08-10 | Komatsu Seiren Co Ltd | Water repellent and oil repellent cloth and method for producing the same |
| TWI318868B (en) * | 2007-03-06 | 2010-01-01 | Formosa Taffeta Co Ltd | Fabrics having soiling resistance and no oil stains after wiping and manufacturing method thereof |
| JP4945623B2 (en) * | 2009-11-13 | 2012-06-06 | 明成化学工業株式会社 | Penetrant for water- and oil-repellent finishing of polyolefin fiber products |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010150725A (en) * | 2008-12-26 | 2010-07-08 | Mitsui Chemicals Inc | Synthetic fiber fabric |
| JP2013177726A (en) * | 2013-05-13 | 2013-09-09 | Mitsui Chemicals Inc | Synthetic fiber structure |
| JP2016075022A (en) * | 2015-12-08 | 2016-05-12 | 三井化学株式会社 | Synthetic fiber structure |
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Free format text: JAPANESE INTERMEDIATE CODE: R250 |
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| LAPS | Cancellation because of no payment of annual fees |