JPH0626643B2 - Antifoam composition for paper processing - Google Patents
Antifoam composition for paper processingInfo
- Publication number
- JPH0626643B2 JPH0626643B2 JP62042359A JP4235987A JPH0626643B2 JP H0626643 B2 JPH0626643 B2 JP H0626643B2 JP 62042359 A JP62042359 A JP 62042359A JP 4235987 A JP4235987 A JP 4235987A JP H0626643 B2 JPH0626643 B2 JP H0626643B2
- Authority
- JP
- Japan
- Prior art keywords
- weight
- parts
- group
- composition
- defoaming
- 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
Links
- 239000000203 mixture Substances 0.000 title claims description 37
- 239000002518 antifoaming agent Substances 0.000 title description 35
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 23
- 229920001296 polysiloxane Polymers 0.000 claims description 23
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 15
- 239000000377 silicon dioxide Substances 0.000 claims description 7
- 125000004432 carbon atom Chemical group C* 0.000 claims description 6
- 125000001183 hydrocarbyl group Chemical group 0.000 claims description 6
- 239000000843 powder Substances 0.000 claims description 5
- 239000004094 surface-active agent Substances 0.000 claims description 5
- 125000002887 hydroxy group Chemical group [H]O* 0.000 claims description 3
- -1 fatty acid ester Chemical class 0.000 description 22
- 239000000123 paper Substances 0.000 description 19
- 238000000576 coating method Methods 0.000 description 16
- 239000011248 coating agent Substances 0.000 description 14
- 230000000052 comparative effect Effects 0.000 description 7
- 238000000034 method Methods 0.000 description 7
- 238000010998 test method Methods 0.000 description 7
- 239000004965 Silica aerogel Substances 0.000 description 6
- 239000000839 emulsion Substances 0.000 description 5
- 238000002156 mixing Methods 0.000 description 5
- HVUMOYIDDBPOLL-XWVZOOPGSA-N Sorbitan monostearate Chemical compound CCCCCCCCCCCCCCCCCC(=O)OC[C@@H](O)[C@H]1OC[C@H](O)[C@H]1O HVUMOYIDDBPOLL-XWVZOOPGSA-N 0.000 description 4
- 235000014113 dietary fatty acids Nutrition 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 239000000194 fatty acid Substances 0.000 description 4
- 229930195729 fatty acid Natural products 0.000 description 4
- 239000004816 latex Substances 0.000 description 4
- 229920000126 latex Polymers 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000003825 pressing Methods 0.000 description 4
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 3
- 229920001214 Polysorbate 60 Polymers 0.000 description 3
- 239000004205 dimethyl polysiloxane Substances 0.000 description 3
- 235000013870 dimethyl polysiloxane Nutrition 0.000 description 3
- 238000005187 foaming Methods 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 229920000435 poly(dimethylsiloxane) Polymers 0.000 description 3
- RZRNAYUHWVFMIP-KTKRTIGZSA-N 1-oleoylglycerol Chemical compound CCCCCCCC\C=C/CCCCCCCC(=O)OCC(O)CO RZRNAYUHWVFMIP-KTKRTIGZSA-N 0.000 description 2
- 229920003171 Poly (ethylene oxide) Polymers 0.000 description 2
- 239000004372 Polyvinyl alcohol Substances 0.000 description 2
- 125000000484 butyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 239000000084 colloidal system Substances 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 238000004945 emulsification Methods 0.000 description 2
- 150000002148 esters Chemical class 0.000 description 2
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 2
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 2
- 229920002451 polyvinyl alcohol Polymers 0.000 description 2
- 125000001436 propyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])[H] 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 235000011076 sorbitan monostearate Nutrition 0.000 description 2
- 239000001587 sorbitan monostearate Substances 0.000 description 2
- 229940035048 sorbitan monostearate Drugs 0.000 description 2
- 229950011392 sorbitan stearate Drugs 0.000 description 2
- JNYAEWCLZODPBN-JGWLITMVSA-N (2r,3r,4s)-2-[(1r)-1,2-dihydroxyethyl]oxolane-3,4-diol Chemical compound OC[C@@H](O)[C@H]1OC[C@H](O)[C@H]1O JNYAEWCLZODPBN-JGWLITMVSA-N 0.000 description 1
- XZIIFPSPUDAGJM-UHFFFAOYSA-N 6-chloro-2-n,2-n-diethylpyrimidine-2,4-diamine Chemical compound CCN(CC)C1=NC(N)=CC(Cl)=N1 XZIIFPSPUDAGJM-UHFFFAOYSA-N 0.000 description 1
- 241000251468 Actinopterygii Species 0.000 description 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerol Natural products OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 1
- 244000043261 Hevea brasiliensis Species 0.000 description 1
- 229920001328 Polyvinylidene chloride Polymers 0.000 description 1
- 229920001131 Pulp (paper) Polymers 0.000 description 1
- 229920002125 Sokalan® Polymers 0.000 description 1
- 229920002472 Starch Polymers 0.000 description 1
- 229930006000 Sucrose Natural products 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 125000000217 alkyl group Chemical group 0.000 description 1
- 230000003254 anti-foaming effect Effects 0.000 description 1
- 239000004599 antimicrobial Substances 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 125000003118 aryl group Chemical group 0.000 description 1
- 125000001797 benzyl group Chemical group [H]C1=C([H])C([H])=C(C([H])=C1[H])C([H])([H])* 0.000 description 1
- QABCGOSYZHCPGN-UHFFFAOYSA-N chloro(dimethyl)silicon Chemical compound C[Si](C)Cl QABCGOSYZHCPGN-UHFFFAOYSA-N 0.000 description 1
- 125000002704 decyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 1
- 125000003438 dodecyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 1
- 238000004043 dyeing Methods 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 230000001804 emulsifying effect Effects 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 229910021485 fumed silica Inorganic materials 0.000 description 1
- 239000005350 fused silica glass Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000011086 glassine Substances 0.000 description 1
- 235000011187 glycerol Nutrition 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 125000004051 hexyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 125000000959 isobutyl group Chemical group [H]C([H])([H])C([H])(C([H])([H])[H])C([H])([H])* 0.000 description 1
- 230000005012 migration Effects 0.000 description 1
- 238000013508 migration Methods 0.000 description 1
- 125000001421 myristyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 229920003052 natural elastomer Polymers 0.000 description 1
- 229920001194 natural rubber Polymers 0.000 description 1
- 125000002347 octyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 150000001367 organochlorosilanes Chemical class 0.000 description 1
- 125000000913 palmityl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 125000001147 pentyl group Chemical group C(CCCC)* 0.000 description 1
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 description 1
- 229920002401 polyacrylamide Polymers 0.000 description 1
- 239000004584 polyacrylic acid Substances 0.000 description 1
- 229920001515 polyalkylene glycol Polymers 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 229920002689 polyvinyl acetate Polymers 0.000 description 1
- 239000011118 polyvinyl acetate Substances 0.000 description 1
- 229920000915 polyvinyl chloride Polymers 0.000 description 1
- 239000004800 polyvinyl chloride Substances 0.000 description 1
- 239000005033 polyvinylidene chloride Substances 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 239000010453 quartz Substances 0.000 description 1
- 230000001846 repelling effect Effects 0.000 description 1
- 239000005060 rubber Substances 0.000 description 1
- 229940035044 sorbitan monolaurate Drugs 0.000 description 1
- 239000008107 starch Substances 0.000 description 1
- 235000019698 starch Nutrition 0.000 description 1
- 125000004079 stearyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 125000003011 styrenyl group Chemical group [H]\C(*)=C(/[H])C1=C([H])C([H])=C([H])C([H])=C1[H] 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 125000000547 substituted alkyl group Chemical group 0.000 description 1
- 125000003107 substituted aryl group Chemical group 0.000 description 1
- 239000005720 sucrose Substances 0.000 description 1
- 229920003051 synthetic elastomer Polymers 0.000 description 1
- 239000005061 synthetic rubber Substances 0.000 description 1
- 125000003944 tolyl group Chemical group 0.000 description 1
- 238000004065 wastewater treatment Methods 0.000 description 1
Classifications
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
- D21H17/03—Non-macromolecular organic compounds
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
- D21H17/20—Macromolecular organic compounds
- D21H17/33—Synthetic macromolecular compounds
- D21H17/46—Synthetic macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- D21H17/59—Synthetic macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Degasification And Air Bubble Elimination (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Paper (AREA)
Description
【発明の詳細な説明】 ［産業上の利用分野］ 本発明は、紙加工工程用消泡剤組成物に関する。詳しく
は、サイズプレス工程、コーティング工程等の紙加工工
程で使用される消泡剤に関する。TECHNICAL FIELD The present invention relates to an antifoam composition for paper processing. Specifically, it relates to an antifoaming agent used in a paper processing process such as a size pressing process and a coating process.
［従来の技術］ 従来、ジメチルポリシロキサンを主成分とする消泡剤
は、他の有機系消泡剤に比べ種々の優れた性質を有し、
医薬工業、醸造工業、染色工業、廃水処理工業、ゴム工
業、石油化学工業、紙パルプ工業、その他一般化学工業
などの発泡を伴なう産業工程に広く使用されている。[Prior Art] Conventionally, an antifoaming agent mainly containing dimethylpolysiloxane has various excellent properties as compared with other organic antifoaming agents,
It is widely used in industrial processes involving foaming such as pharmaceutical industry, brewing industry, dyeing industry, wastewater treatment industry, rubber industry, petrochemical industry, paper pulp industry, and other general chemical industries.
しかしながら、ジメチルポリシロキサンを主成分とする
消泡剤を有機樹脂の消泡に使用すると、ジメチルポリシ
ロキサンと該有機樹脂との相溶性が乏しいために、フィ
ッシュアイやクレタリング等のはじき現象が起るという
欠点があった。そのために、ポリオキシアルキレン基含
有オルガノポリシロキサンをベースとした消泡剤によっ
て、上記した欠点を解決しようとする試みが行なわれて
いた（特開昭５４−１４９３８８号、特開昭５６−１３
６６０９号参照）。However, when an antifoaming agent containing dimethylpolysiloxane as a main component is used for defoaming an organic resin, repelling phenomena such as fish eyes and lettering occur due to poor compatibility between the dimethylpolysiloxane and the organic resin. There was a drawback that For this reason, attempts have been made to solve the above-mentioned drawbacks by using an antifoaming agent based on a polyoxyalkylene group-containing organopolysiloxane (JP-A-54-149388 and JP-A-56-13).
6609).
［発明が解決しようとする問題点］ しかしながら、上記したポリオキシアルキレン基含有オ
ルガノポリシロキサンをベースとする消泡剤を、紙加工
工程すなわちサイズプレス工程、コーティング工程等で
使用した場合、サイズ剤やコーティングカラーとの相溶
性に起因するフィッシュアイやクレタリング等のはじき
現象の点で改善がみられるが、その後の工程において印
字むらが発生するという重大な欠点があった。[Problems to be Solved by the Invention] However, when the antifoaming agent based on the above-mentioned polyoxyalkylene group-containing organopolysiloxane is used in a paper processing step, that is, a size pressing step, a coating step, etc., Although there is an improvement in the repellency phenomenon such as fish-eye and lettering caused by the compatibility with the coating color, there was a serious drawback that uneven printing occurs in the subsequent steps.
さらに、消泡剤中のポリオキシアルキレン基含有オルガ
ノポリシロキサンが親水性を付与するために、吸湿しや
すく耐水性に劣った紙が製造されるという重大な欠点が
あった。Further, since the polyoxyalkylene group-containing organopolysiloxane in the defoaming agent imparts hydrophilicity, there is a serious drawback that paper which is easy to absorb moisture and is poor in water resistance is produced.
本発明は、かかる欠点を解消することを目的とし、サイ
ズプレス工程、コーティング工程等の紙加工工程におい
て優れた消泡剤を有し、かつその後の工程において印字
むら、塗工むらの発生がなく、また製造後の紙の耐水性
が低下することのない紙加工工程用消泡剤組成物を提供
するものである。The present invention aims to eliminate such drawbacks, and has an excellent defoaming agent in a paper processing process such as a size pressing process and a coating process, and print unevenness and coating unevenness do not occur in the subsequent processes. Further, the present invention provides a defoaming composition for paper processing, which does not reduce the water resistance of paper after production.
［発明の構成と作用の説明］ 上記した目的は、 (A)一般式 （式中、Ｒ１は炭素数１〜４の一価炭化水素基、Ｒ２は
炭素数４〜２０の一価炭化水素基、Ｒ３はＲ１，Ｒ２ま
たは水酸基、n は５〜５００の整数）で示されるオルガ
ノポリシロキサン ０．１〜５０重量％ (B)シリカ微粉末 ０．０１〜２０重量％ (C)非シリコーン系界面活性剤 ０．１〜４０重量％ および (D)水 ３０〜９８重量％ からなることを特徴とする紙加工工程用消泡剤組成物に
より達成される。[Explanation of Structure and Action of Invention] The above-mentioned object is (A) general formula (In the formula, R 1 is a monovalent hydrocarbon group having 1 to 4 carbon atoms, R 2 is a monovalent hydrocarbon group having 4 to 20 carbon atoms, R 3 is R 1 , R 2 or a hydroxyl group, and n is 5 to 500. 0.1 to 50% by weight (B) silica fine powder 0.01 to 20% by weight (C) non-silicone surfactant 0.1 to 40% by weight and (D) water It is achieved by a defoaming composition for paper processing, which is characterized by comprising 30 to 98% by weight.
これを説明するに、(A)成分のオルガノポリシロキサン
は、一般式 で示されるものであり、紙加工工程後の工程で印刷む
ら、塗工むらの発生がなく、また製造後の紙の耐水性を
損うことなく消泡性を付与する成分である。To explain this, the organopolysiloxane of component (A) has the general formula Is a component that imparts defoaming properties without causing print unevenness or coating unevenness in the process after the paper processing process and without impairing the water resistance of the manufactured paper.
前記した式中、Ｒ１は炭素数１〜４の一価炭化水素基で
あり、これにはメチル基、エチル基、プロピル基、n −
ブチル基、イソブチル基が例示される。消泡性の点か
ら、Ｒ１はメチル基、エチル基、プロピル基が好まし
い。Ｒ２は炭素数４〜２０の一価炭化水素基であり、こ
れにはブチル基、ペンチル基、ヘキシル基、オクチル
基、デシル基、ドデシル基、テトラデシル基、ヘキサデ
シル基、オクタデシル基のようなアルキル基；スチレニ
ル基、ベンジル基のような置換アルキル基；フェニル
基、トリル基のようなアリール基または置換アリール基
が例示される。Ｒ３はＲ１，Ｒ２または水酸基である。
ここでＲ１，Ｒ２およびＲ３は、分子中それぞれ１種で
あってよく、また２種以上であってよい。n は５〜５０
０の整数である。これはn が５未満では充分な消泡性が
得られず、また５００を超えると乳化が困難となるため
である。In the above formula, R 1 is a monovalent hydrocarbon group having 1 to 4 carbon atoms, which includes a methyl group, an ethyl group, a propyl group, n-
A butyl group and an isobutyl group are exemplified. From the viewpoint of defoaming property, R 1 is preferably a methyl group, an ethyl group or a propyl group. R 2 is a monovalent hydrocarbon group having 4 to 20 carbon atoms, including alkyl groups such as butyl group, pentyl group, hexyl group, octyl group, decyl group, dodecyl group, tetradecyl group, hexadecyl group, octadecyl group. Examples thereof include a substituted alkyl group such as a styrenyl group and a benzyl group; an aryl group such as a phenyl group and a tolyl group, or a substituted aryl group. R 3 is R 1 , R 2 or a hydroxyl group.
Here, R 1 , R 2 and R 3 may each be one type in the molecule, or may be two or more types. n is 5 to 50
It is an integer of 0. This is because if n is less than 5, sufficient defoaming properties cannot be obtained, and if it exceeds 500, emulsification becomes difficult.
本成分の具体例としては、 がある。Specific examples of this component include: There is.
本発明で使用される(B)成分のシリカ微粉末としては、
シリカアエロゲル、沈降シリカ、ヒュームドシリカ、溶
融シリカ、焼成シリカ、石英微粉末が例示される。これ
らはそのまま用いてよく、またオルガノクロロシラン、
オルガノアルコキシシラン、オルガノジシラザン、オル
ガノポリシロキサン等で疎水化処理したものを用いてよ
い。As the silica fine powder of the component (B) used in the present invention,
Examples include silica aerogel, precipitated silica, fumed silica, fused silica, calcined silica, and fine quartz powder. These may be used as they are, or organochlorosilane,
A hydrophobized product such as organoalkoxysilane, organodisilazane, or organopolysiloxane may be used.
本発明で使用される(C)成分は、(A)成分のオルガノポリ
シロキサンを乳化分散させるに必要なものであり、非シ
リコーン系の界面活性剤である。ポリオキシアルキレン
基含有オルガノポリシロキサンのようなシリコーン系界
面活性剤は、製造後の紙に対し吸湿性を付与し、耐水性
を低下させてしまうので、本発明組成物には使用できな
い。The component (C) used in the present invention is necessary for emulsifying and dispersing the organopolysiloxane of the component (A), and is a non-silicone type surfactant. Silicone-based surfactants such as polyoxyalkylene group-containing organopolysiloxane impart hygroscopicity to the paper after production and reduce water resistance, and therefore cannot be used in the composition of the present invention.
本成分の具体例としては、ポリオキシエチレンソルビタ
ン脂肪酸エステル、ポリオキシエチレン脂肪酸エステ
ル、ソルビタン酸エステル、グリセリン脂肪酸エステ
ル、ショ糖脂肪酸エステル、ポリオキシエチレン高級ア
ルコールエーテル、アルキルフェニルエーテルがあり、
これらの１種または２種以上を使用してよい。Specific examples of this component include polyoxyethylene sorbitan fatty acid ester, polyoxyethylene fatty acid ester, sorbitan acid ester, glycerin fatty acid ester, sucrose fatty acid ester, polyoxyethylene higher alcohol ether, alkylphenyl ether,
One or more of these may be used.
本発明消泡剤組成物は、前記した(A)成分０．１〜５０
重量％、好ましくは５〜３０重量％、(B)成分０．０１
〜２０重量％好ましくは０．５〜１０重量％、(C)成分
０．１〜４０重量％好ましくは２〜２０重量％および
(D)成分３０〜９８重量％、好ましくは５０〜９５重量
％を均一に混合することにより得られる。これは、(A)
成分が０．１重量％よりも少ないと消泡効果が低下し、
５０重量％より多いと乳化安定性が悪くなるためであ
る。(B)成分が０．０１重量％より少ないと組成物の消
泡効果の速効性、持続性が劣り、２０重量％より多いと
シリカの分散が困難となり乳化安定性が低下する。また
(C)成分が０．１重量％より少ないと乳化ができない
か、または乳化安定性が低下し、４０重量％より多いと
粘度が高くなって分散性が悪くなり作業性が低下する。
なお、混合に際して(A)成分と(B)成分とを１００〜２０
０℃で３０分〜５時間加熱処理しておくことが好まし
い。The antifoam composition of the present invention comprises the above-mentioned component (A) 0.1 to 50.
% By weight, preferably 5 to 30% by weight, component (B) 0.01
To 20% by weight, preferably 0.5 to 10% by weight, component (C) 0.1 to 40% by weight, preferably 2 to 20% by weight, and
The component (D) is obtained by uniformly mixing 30 to 98% by weight, preferably 50 to 95% by weight. This is (A)
If the content is less than 0.1% by weight, the defoaming effect will decrease,
This is because if it is more than 50% by weight, the emulsion stability becomes poor. When the amount of component (B) is less than 0.01% by weight, the defoaming effect of the composition is inferior in the rapid effect and sustainability, and when it is more than 20% by weight, it is difficult to disperse silica and emulsion stability is lowered. Also
If the amount of component (C) is less than 0.1% by weight, emulsification cannot be carried out or the emulsion stability is lowered, and if it exceeds 40% by weight, the viscosity is high and the dispersibility is poor and the workability is lowered.
In addition, the components (A) and (B) are mixed in an amount of 100 to 20 during mixing.
It is preferable to perform heat treatment at 0 ° C. for 30 minutes to 5 hours.
本発明の消泡剤組成物には、必要に応じて本発明の目的
を損わない程度に、保護コロイド剤、ポリアルキレング
リコールのような有機系消泡剤、防腐剤等を添加してよ
い。The defoaming agent composition of the present invention may optionally contain a protective colloid agent, an organic antifoaming agent such as polyalkylene glycol, an antiseptic agent, etc., to the extent that the object of the present invention is not impaired. .
かくして得られた本発明の消泡剤組成物は、サイズプレ
ス工程におけるでんぷん、ＰＶＡ、ポリアクリルアミド
等のサイズ液、コーティング工程における天然ゴム、Ｓ
ＢＲ、ＮＢＲ、ＣＲのような合成ゴム、ポリ塩化ビニ
ル、ポリ塩化ビニリデン、ポリ酢酸ビニル、ポリアクリ
ル酸エステル、ポリウレタン等のコーティングカラー液
等に適用される。添加量は特に制限はないが、好ましく
は５〜５００００ppm である。The thus obtained antifoam composition of the present invention comprises a size liquid such as starch, PVA, and polyacrylamide in the size pressing step, natural rubber in the coating step, and S.
It is applicable to synthetic rubbers such as BR, NBR and CR, coating color liquids such as polyvinyl chloride, polyvinylidene chloride, polyvinyl acetate, polyacrylic acid ester and polyurethane. The amount added is not particularly limited, but is preferably 5 to 50,000 ppm.
［実施例］ 次に本発明を実施例により説明する。実施例中、部はす
べて重量部を意味する。[Examples] Next, the present invention will be described with reference to Examples. In the examples, all parts are parts by weight.
実施例１ 式 で示されるメチルデシルポリシロキサン２０部、シリカ
アエロゲル３部を混合後、１５０℃で２時間撹拌し、シ
リカアエロゲルをポリシロキサン中に均一に分散させ
た。これを室温まで冷却し、これにソルビタンモノステ
アレート３部、グリセリンモノオレート２部およびポリ
オキシエチレンソルビタンステアレート２部を添加して
混合した後、水７０部を加え、均一になるまで撹拌、本
発明の消泡剤組成物Ａを調製した。Example 1 Formula After mixing 20 parts of methyldecyl polysiloxane and 3 parts of silica aerogel, the mixture was stirred at 150 ° C. for 2 hours to uniformly disperse the silica aerogel in the polysiloxane. After cooling to room temperature, 3 parts of sorbitan monostearate, 2 parts of glycerin monooleate and 2 parts of polyoxyethylene sorbitan stearate were added and mixed, 70 parts of water was added, and the mixture was stirred until uniform. An antifoam composition A of the present invention was prepared.
また、消泡剤組成物Ａにおいてメチルデシルポリシロキ
サン２０部の代りに、式 で示されるメチルヘキシル・メチルドデシルポロシロキ
サン２０部を使用した他は全く同様に、消泡剤組成物Ｂ
を調製した。In the antifoam composition A, instead of 20 parts of methyldecyl polysiloxane, The antifoaming composition B was prepared in the same manner except that 20 parts of methylhexyl / methyldodecylpolysiloxane represented by
Was prepared.
また、比較例１として、消泡剤組成物Ａにおいてメチル
デシルポリシロキサン２０部の代りに、重合度４０の両
末端トリメチルシロキシ基封鎖ジメチルポリシロオキン
２０部を使用した他は全く同様に消泡剤組成物Ｐを調製
した。Further, as Comparative Example 1, in the same manner as in Example 1, except that 20 parts of methyldecylpolysiloxane in Defoaming Agent Composition A was replaced with 20 parts of dimethylsiloxyquine blocked with trimethylsiloxy groups at both ends and having a polymerization degree of 40, the defoaming composition was the same. Agent composition P was prepared.
また、比較例２として組成物Ｕを調整した。In addition, Composition U was prepared as Comparative Example 2.
すなわち、 式 で示されるメチルデシルポリシロキサン１５部およびシ
リカアエロゲル３部を混合後、１５０℃２時間撹拌し、
シリカアエロゲルをポリシロキサン中の均一分散させ
た。これを室温まで冷却し、これに式 で示されるポリオキシアルキレン基含有ポリシロキサン
５部、ソルビタンモノステアレート３部、グリセリンモ
ノオレート２部およびポリオキシエチレンソルビタンス
テアレート２部を添加してよく混合し、水７０部を加え
均一になるまで撹拌して組成物Ｕを調製した。That is, the expression After mixing 15 parts of methyldecylpolysiloxane and 3 parts of silica aerogel, the mixture is stirred at 150 ° C. for 2 hours,
The silica airgel was uniformly dispersed in the polysiloxane. Cool it to room temperature and apply 5 parts of polyoxyalkylene group-containing polysiloxane, 3 parts of sorbitan monostearate, 2 parts of glycerin monooleate and 2 parts of polyoxyethylene sorbitan stearate are added and mixed well, and 70 parts of water are added to homogenize the mixture. To prepare Composition U.
次に、消泡剤組成物Ａ、Ｂ、ＰおよびＵを用い次に示す
試験方法Ｉによりラテックスエマルジョンによる消泡性
試験を行ない、さらに試験方法IIに従ってコーティング
時の塗工むらの有無（塗工性）を観察した。また、コー
ティング後の紙を７０℃の熱風循環式オーブンで１時間
乾燥後、油性のマジックインキで字を書き、むらの有無
（印字性）を観察した。これらの結果を第１表に示し
た。Next, a defoaming property test with a latex emulsion was conducted by the following test method I using the defoaming agent compositions A, B, P and U, and further, according to the test method II, the presence or absence of coating unevenness during coating (coating Sex) was observed. Further, the coated paper was dried for 1 hour in a hot air circulation type oven at 70 ° C., a letter was written with an oil-based magic ink, and the presence or absence of unevenness (printability) was observed. The results are shown in Table 1.
（試験方法Ｉ） １メスシリンダーにラテックスエマルジョン（ＳＢＲ
系固形分４５重量％）２００mlおよび消泡剤を所定量
（５０、５００および５０００ppm ）入れ、該ラテック
ス中に室温でディフューザーストーンを通して空気を１
００ml／分の割合で連続的に送入し、送入開始から一定
時間毎の起泡量（発泡液と泡の全体積）を測定した。(Test Method I) Latex emulsion (SBR
200 ml of a system solid content of 45% by weight and a predetermined amount (50, 500 and 5000 ppm) of an antifoaming agent are put into the latex at room temperature and a diffuser stone is passed through the air to give 1
It was continuously fed at a rate of 00 ml / min, and the amount of foaming (the total volume of the foaming liquid and the foam) was measured at regular intervals from the start of the feeding.
（試験方法II） 試験方法Ｉにより消泡性試験を終えたラテックスをグラ
シン紙にコーティングロッドを用い２ｇ／m2塗布し、塗
検むらの有無（塗工性）を観察した。(Test Method II) Latex which had been subjected to the defoaming test according to Test Method I was applied to glassine paper with a coating rod at 2 g / m 2 and the presence or absence of coating unevenness (coatability) was observed.
実施例２ 式 で示されるメチルオクチルポリシロキサン２５部および
ジメチルクロロシラン処理したシリカアエロゲル５部を
混合後、１７０℃で１時間撹拌し、シリカアエロゲルを
ポリシロキサン中に均一に分散させた。これを室温まで
冷却し、ポリオキシエチレンモノステアレート５部およ
びソルビタンモノラウレート５部を混合し、次に水６０
部を加え、均一になるまで撹拌後、コロイドミルに通し
て消泡剤Ｃを調製した。 Example 2 Formula After mixing 25 parts of methyloctylpolysiloxane represented by and 5 parts of dimethylchlorosilane-treated silica aerogel, the mixture was stirred at 170 ° C. for 1 hour to uniformly disperse the silica aerogel in the polysiloxane. It is cooled to room temperature, mixed with 5 parts of polyoxyethylene monostearate and 5 parts of sorbitan monolaurate, then 60 parts of water.
Parts were added, and the mixture was stirred until it became uniform, and then passed through a colloid mill to prepare an antifoaming agent C.
また比較例３として、消泡剤Ｃにおいてメチルオクチル
ポリシロキサン２５部の代りに式 で示されるジメチル・メチルオクチルポリシロキサン２
５部を使用した他は全く同様に消泡剤組成物Ｑを調製し
た。Further, as Comparative Example 3, in the defoaming agent C, 25 parts of methyloctylpolysiloxane was used instead of the formula. Dimethyl methyl octyl polysiloxane 2
An antifoam composition Q was prepared in exactly the same manner except that 5 parts were used.
また比較例４として、消泡剤組成物Ｃにおいてメチルオ
クチルポリシロキサン２５部の代りに、式 で示されるオルガノポリシロキサン２５部を使用した他
は全く同様に消泡剤組成物Ｒの調製を試みたが、ポリシ
ロキサンが固形状のため安定性の良い消泡剤組成物を得
ることができなかった。Further, as Comparative Example 4, in the antifoam composition C, instead of 25 parts of methyloctylpolysiloxane, An attempt was made to prepare the defoaming agent composition R in the same manner except that 25 parts of the organopolysiloxane represented by the formula (1) was used. However, since the polysiloxane was in a solid state, a stable defoaming agent composition could be obtained. There wasn't.
また比較例５として、消泡剤組成物Ｃにおいてメチルオ
クチルポリシロキサン２５部の代りに式 で示されるメチルオクチルポリシロキサン２５部を使用
して消泡剤組成物の調製を試みたが、ポリシロキサンが
非常に粘稠のため乳化できず、消泡剤組成物が得られな
かった。Also, as Comparative Example 5, in the defoaming agent composition C, 25 parts of methyloctylpolysiloxane was used instead of the formula. An attempt was made to prepare a defoaming agent composition by using 25 parts of methyloctylpolysiloxane represented by the formula (1), but the polysiloxane was so viscous that it could not be emulsified and a defoaming agent composition could not be obtained.
さらに比較例６として、消泡剤Ｃにおいてメチルオクチ
ルポリシロキサン２５部の代りに、式 で示されるメチルオクチルポリシロキサン２５部を使用
した他は全く同様に消泡剤組成物Ｔを調製した。Furthermore, as Comparative Example 6, in the defoaming agent C, instead of 25 parts of methyloctylpolysiloxane, An antifoam composition T was prepared in exactly the same manner except that 25 parts of methyloctylpolysiloxane represented by
これら消泡剤組成物Ｃ、ＱおよびＴを用いて実施例１と
同様に消泡性、塗工性および印字性を試験し、その結果
を第２表に示した。Using these defoaming agent compositions C, Q and T, the defoaming property, coating property and printability were tested in the same manner as in Example 1, and the results are shown in Table 2.
実施例３ 実施例１において調製した消泡剤組成物Ａ，ＢおよびＣ
ならびに比較例２において調製した消泡剤組成物Ｕにつ
いて次に示す試験方法IIIに従い、紙の耐水性を試験し
た。 Example 3 Antifoam compositions A, B and C prepared in Example 1
Also, the water resistance of the paper was tested for the antifoam composition U prepared in Comparative Example 2 in accordance with Test Method III shown below.
（試験方法III） １００mlガラスビンに１０重量％ポリビニルアルコール
水溶液５０ｇおよび消泡剤を入れて均一に混合後、これ
を２０cm×２０cmの原紙にコーティングロッドを用いて
２ｇ／m2塗布し、紙が曲がらないよう木わくにセットし
て７０℃の熱風循環式オーブンで１時間乾燥させた。(Test method III) 50 g of 10% by weight polyvinyl alcohol aqueous solution and a defoaming agent were put into a 100 ml glass bottle and uniformly mixed, and then 2 g / m 2 was applied to a 20 cm × 20 cm base paper using a coating rod to bend the paper. It was set on a wooden frame so as not to be dried and dried in a hot air circulation type oven at 70 ° C. for 1 hour.
これを室温まで冷却した後、木わくに固定した原紙を４
５゜に傾け、これに０．１ccの水をマイクロシリンジで
滴下し、１分後の水の移動距離を測定して耐水性試験と
した。After cooling this to room temperature, attach the base paper fixed to the wooden frame to
It was tilted at 5 °, 0.1 cc of water was dropped on it with a microsyringe, and the migration distance of water after 1 minute was measured to make a water resistance test.
これらの結果を第３表に示した。The results are shown in Table 3.
［発明の効果］ 本発明の紙加工工程用消泡剤組成物は、(A)成分のオル
ガノポリシロキサン０．１〜５０重量％、(B)成分のシ
リカ微粉末０．０１〜２０重量％、(C)成分の非シリコ
ーン系界面活性剤０．１〜４０重量％および(D)成分の
水３０〜９８重量％からなるので、紙加工工程において
優れた消泡性を有し、かつその後の工程において印字む
ら、塗工むらの発生がなく、さらに製造後の紙の耐水性
が低下しないという特徴を有している。 [Effects of the Invention] The defoaming agent composition for paper processing according to the present invention comprises 0.1 to 50% by weight of organopolysiloxane (A) and 0.01 to 20% by weight of silica fine powder (B). , 0.1 to 40% by weight of the non-silicone surfactant as the component (C) and 30 to 98% by weight of water as the component (D), it has an excellent defoaming property in the paper processing step, and In this step, uneven printing or uneven coating does not occur, and the water resistance of the paper after production does not decrease.
Claims (1)
炭素数４〜２０の一価炭化水素基、Ｒ３はＲ１，Ｒ２ま
たは水酸基、n は５〜５００の整数）で示されるオルガ
ノポリシロキサン ０．１〜５０重量％ (B)シリカ微粉末 ０．０１〜２０重量％ (C)非シリコーン系界面活性剤 ０．１〜４０重量％ および (D)水 ３０〜９８重量％ からなることを特徴とする紙加工工程用消泡剤組成物。1. A general formula (A) (In the formula, R 1 is a monovalent hydrocarbon group having 1 to 4 carbon atoms, R 2 is a monovalent hydrocarbon group having 4 to 20 carbon atoms, R 3 is R 1 , R 2 or a hydroxyl group, and n is 5 to 500. 0.1 to 50% by weight (B) silica fine powder 0.01 to 20% by weight (C) non-silicone surfactant 0.1 to 40% by weight and (D) water A defoaming composition for paper processing, comprising 30 to 98% by weight.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62042359A JPH0626643B2 (en) | 1987-02-25 | 1987-02-25 | Antifoam composition for paper processing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62042359A JPH0626643B2 (en) | 1987-02-25 | 1987-02-25 | Antifoam composition for paper processing |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63209708A JPS63209708A (en) | 1988-08-31 |
| JPH0626643B2 true JPH0626643B2 (en) | 1994-04-13 |
Family
ID=12633838
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62042359A Expired - Lifetime JPH0626643B2 (en) | 1987-02-25 | 1987-02-25 | Antifoam composition for paper processing |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0626643B2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ATE401945T1 (en) * | 1999-08-13 | 2008-08-15 | Dow Corning Sa | SILICONE FOAM REGULATOR |
| DE102004051897A1 (en) * | 2004-10-26 | 2006-04-27 | Wacker Chemie Ag | defoamer |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4005044A (en) * | 1975-06-20 | 1977-01-25 | General Electric Company | Method of making aqueous antifoam compositions |
-
1987
- 1987-02-25 JP JP62042359A patent/JPH0626643B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPS63209708A (en) | 1988-08-31 |
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