JP2003041221A - Emulsion type adhesive for water-repellent processed paper - Google Patents
Emulsion type adhesive for water-repellent processed paperInfo
- Publication number
- JP2003041221A JP2003041221A JP2001227836A JP2001227836A JP2003041221A JP 2003041221 A JP2003041221 A JP 2003041221A JP 2001227836 A JP2001227836 A JP 2001227836A JP 2001227836 A JP2001227836 A JP 2001227836A JP 2003041221 A JP2003041221 A JP 2003041221A
- Authority
- JP
- Japan
- Prior art keywords
- water
- repellent
- weight
- emulsion
- adhesive
- 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.)
- Pending
Links
- 239000000853 adhesive Substances 0.000 title claims abstract description 79
- 230000001070 adhesive effect Effects 0.000 title claims abstract description 79
- 239000005871 repellent Substances 0.000 title claims abstract description 51
- 239000000839 emulsion Substances 0.000 title claims abstract description 40
- 229920001577 copolymer Polymers 0.000 claims abstract description 27
- 229920005989 resin Polymers 0.000 claims abstract description 25
- 239000011347 resin Substances 0.000 claims abstract description 25
- 239000005038 ethylene vinyl acetate Substances 0.000 claims abstract description 19
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 claims abstract description 19
- BRLQWZUYTZBJKN-UHFFFAOYSA-N Epichlorohydrin Chemical compound ClCC1CO1 BRLQWZUYTZBJKN-UHFFFAOYSA-N 0.000 claims abstract description 10
- 239000004952 Polyamide Substances 0.000 claims abstract description 10
- 229920002647 polyamide Polymers 0.000 claims abstract description 10
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 claims abstract description 7
- 239000005977 Ethylene Substances 0.000 claims abstract description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 22
- 125000000217 alkyl group Chemical group 0.000 claims description 15
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 claims description 14
- 230000002940 repellent Effects 0.000 claims description 9
- 125000005396 acrylic acid ester group Chemical group 0.000 claims description 6
- 125000004432 carbon atom Chemical group C* 0.000 claims description 5
- ULUAUXLGCMPNKK-UHFFFAOYSA-N Sulfobutanedioic acid Chemical class OC(=O)CC(C(O)=O)S(O)(=O)=O ULUAUXLGCMPNKK-UHFFFAOYSA-N 0.000 abstract description 6
- 230000000052 comparative effect Effects 0.000 description 8
- -1 polyethylene Polymers 0.000 description 8
- 239000001993 wax Substances 0.000 description 8
- 239000000203 mixture Substances 0.000 description 6
- 239000012188 paraffin wax Substances 0.000 description 5
- 239000004925 Acrylic resin Substances 0.000 description 4
- 229920000178 Acrylic resin Polymers 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 3
- XTXRWKRVRITETP-UHFFFAOYSA-N Vinyl acetate Chemical compound CC(=O)OC=C XTXRWKRVRITETP-UHFFFAOYSA-N 0.000 description 3
- 239000011248 coating agent Substances 0.000 description 3
- 238000000576 coating method Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000011156 evaluation Methods 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- 239000000178 monomer Substances 0.000 description 3
- IANQTJSKSUMEQM-UHFFFAOYSA-N 1-benzofuran Chemical compound C1=CC=C2OC=CC2=C1 IANQTJSKSUMEQM-UHFFFAOYSA-N 0.000 description 2
- RSWGJHLUYNHPMX-UHFFFAOYSA-N Abietic-Saeure Natural products C12CCC(C(C)C)=CC2=CCC2C1(C)CCCC2(C)C(O)=O RSWGJHLUYNHPMX-UHFFFAOYSA-N 0.000 description 2
- 239000004698 Polyethylene Substances 0.000 description 2
- KHPCPRHQVVSZAH-HUOMCSJISA-N Rosin Natural products O(C/C=C/c1ccccc1)[C@H]1[C@H](O)[C@@H](O)[C@@H](O)[C@@H](CO)O1 KHPCPRHQVVSZAH-HUOMCSJISA-N 0.000 description 2
- 150000001252 acrylic acid derivatives Chemical class 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- DQXBYHZEEUGOBF-UHFFFAOYSA-N but-3-enoic acid;ethene Chemical compound C=C.OC(=O)CC=C DQXBYHZEEUGOBF-UHFFFAOYSA-N 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 239000003208 petroleum Substances 0.000 description 2
- 229920000573 polyethylene Polymers 0.000 description 2
- 238000009864 tensile test Methods 0.000 description 2
- KHPCPRHQVVSZAH-UHFFFAOYSA-N trans-cinnamyl beta-D-glucopyranoside Natural products OC1C(O)C(O)C(CO)OC1OCC=CC1=CC=CC=C1 KHPCPRHQVVSZAH-UHFFFAOYSA-N 0.000 description 2
- 239000004908 Emulsion polymer Substances 0.000 description 1
- CERQOIWHTDAKMF-UHFFFAOYSA-N Methacrylic acid Chemical compound CC(=C)C(O)=O CERQOIWHTDAKMF-UHFFFAOYSA-N 0.000 description 1
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 description 1
- 238000007718 adhesive strength test Methods 0.000 description 1
- 150000001298 alcohols Chemical class 0.000 description 1
- 125000001931 aliphatic group Chemical group 0.000 description 1
- 125000005250 alkyl acrylate group Chemical group 0.000 description 1
- 239000003945 anionic surfactant Substances 0.000 description 1
- 125000003118 aryl group Chemical group 0.000 description 1
- 125000000484 butyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- GXWYPDIMYLFZIY-UHFFFAOYSA-N butyl prop-2-enoate;2-ethylhexyl prop-2-enoate;prop-2-enoic acid Chemical compound OC(=O)C=C.CCCCOC(=O)C=C.CCCCC(CC)COC(=O)C=C GXWYPDIMYLFZIY-UHFFFAOYSA-N 0.000 description 1
- 159000000007 calcium salts Chemical class 0.000 description 1
- 230000006837 decompression Effects 0.000 description 1
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 1
- 239000003350 kerosene Substances 0.000 description 1
- 239000004240 magnesium diglutamate Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 230000000379 polymerizing effect Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- APSBXTVYXVQYAB-UHFFFAOYSA-M sodium docusate Chemical compound [Na+].CCCCC(CC)COC(=O)CC(S([O-])(=O)=O)C(=O)OCC(CC)CCCC APSBXTVYXVQYAB-UHFFFAOYSA-M 0.000 description 1
- 159000000000 sodium salts Chemical class 0.000 description 1
- 229920006027 ternary co-polymer Polymers 0.000 description 1
- 150000003505 terpenes Chemical class 0.000 description 1
- 235000007586 terpenes Nutrition 0.000 description 1
- 239000008096 xylene Substances 0.000 description 1
Landscapes
- Adhesives Or Adhesive Processes (AREA)
- Paper (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は撥水加工紙用エマル
ジョン型接着剤に関するものであって、高い撥水性を持
つ加工紙に対しても、初期接着力、皮膜形成後の接着強
度、耐水性等に優れているエマルジョン型接着剤に関す
るものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an emulsion type adhesive for water-repellent processed papers, and even for processed papers having high water repellency, initial adhesive strength, adhesive strength after film formation, and water resistance. The present invention relates to an emulsion type adhesive excellent in the above.
【０００２】[0002]
【従来の技術】従来、紙用接着剤としてエマルジョン型
接着剤が利用されている。しかし、エマルジョン型接着
剤は、通常、水を含むので、ワックス等で撥水加工され
た撥水加工紙を接着しようとすると接着剤が紙面に十分
濡れず界面剥離が起ってしまうという問題点があった。2. Description of the Related Art Conventionally, emulsion type adhesives have been used as adhesives for paper. However, since emulsion-type adhesives usually contain water, the problem is that when attempting to adhere water-repellent paper that has been water-repellent processed with wax, etc., the adhesive does not sufficiently wet the paper surface and interface peeling occurs. was there.
【０００３】そこで、撥水加工紙であっても接着可能な
エマルジョン型接着剤として、酢酸ビニル樹脂エマルジ
ョンと灯油とを含有するエマルジョン型接着剤が提案さ
れている（特開昭５９−９１１６６号公報参照）。Therefore, an emulsion type adhesive containing a vinyl acetate resin emulsion and kerosene has been proposed as an emulsion type adhesive capable of adhering even water repellent processed paper (Japanese Patent Laid-Open No. 59-91166). reference).
【０００４】また、搬送・保管時の水濡れが避けられな
い物や湿気に敏感な物を包む紙容器に使用される原料紙
としては、これまで内部にポリエチレンフィルム層を持
つ耐湿加工紙が広く利用されていたが、ポリエチレンフ
ィルム層が紙資源の再利用の障害となるため、パラフィ
ンとアクリル樹脂の混合物からなるワックス等で撥水加
工された撥水加工紙を使用することが検討されてきてい
る。Further, as a raw material paper used for a paper container for wrapping a material which is inevitably wet with water during transportation and storage or a material which is sensitive to moisture, a moisture resistant processed paper having a polyethylene film layer inside has been widely used. Although it has been used, since the polyethylene film layer hinders the reuse of paper resources, it has been considered to use water-repellent paper that has been water-repellent treated with wax or the like made of a mixture of paraffin and acrylic resin. There is.
【０００５】[0005]
【発明が解決しようとする課題】しかしながら、本発明
者の検討によれば、上記公報記載のエマルジョン型接着
剤は、初期接着力が不十分で、接着面で被着体同士がず
れるという問題点があり、また、単にパラフィンワック
スを用いた程度の撥水加工紙であれば接着することがで
きるが、パラフィンとアクリル樹脂の混合物からなるワ
ックス等を用いた、高度な撥水処理が施された撥水加工
紙では、十分な接着力が得られないという問題点があっ
た。However, according to the study by the present inventor, the emulsion-type adhesive described in the above publication has a problem that the initial adhesive strength is insufficient and the adherends are displaced from each other on the adhesive surface. In addition, it can be adhered if it is a water-repellent processed paper to the extent that only paraffin wax is used, but it has been subjected to an advanced water-repellent treatment using a wax made of a mixture of paraffin and acrylic resin. The water-repellent processed paper has a problem that sufficient adhesive force cannot be obtained.
【０００６】本発明の目的は、上記従来の撥水加工紙用
エマルジョン型接着剤の問題点に鑑みて、高度な撥水処
理が施された撥水加工紙に対しても、十分な接着力を発
現し得る撥水加工紙用エマルジョン型接着剤を提供する
ことにある。In view of the problems of the conventional emulsion-type adhesives for water-repellent processed paper, an object of the present invention is to provide a sufficient adhesive force even for water-repellent processed paper that has been subjected to a high degree of water-repellent treatment. Another object of the present invention is to provide an emulsion-type adhesive for water-repellent processed paper that can exhibit the following.
【０００７】[0007]
【課題を解決するための手段】上記目的を達成するため
に、請求項１記載の発明は、アクリル酸エステル系共重
合体及びエチレン−酢酸ビニル系共重合体の合計量１０
０重量部に対して、粘着付与樹脂が５〜１００重量部、
ジアルキルスルホ琥珀酸塩が１重量部以上及びポリアミ
ドエピクロルヒドリンが１重量部以上含有されてなる撥
水加工紙用エマルジョン型接着剤を提供する。In order to achieve the above object, the invention according to claim 1 provides a total amount of 10 parts by weight of an acrylic acid ester copolymer and an ethylene-vinyl acetate copolymer.
5 to 100 parts by weight of the tackifying resin with respect to 0 parts by weight,
Provided is an emulsion-type adhesive for water-repellent paper, which comprises 1 part by weight or more of dialkyl sulfosuccinate and 1 part by weight or more of polyamide epichlorohydrin.
【０００８】又、請求項２記載の発明は、アクリル酸エ
ステル系共重合体が、アルキル基の炭素数が２〜１２の
アルキル（メタ）アクリレートの共重合体である請求項
１記載の撥水加工紙用エマルジョン型接着剤を提供す
る。又、請求項３記載の発明は、エチレン−酢酸ビニル
系共重合体のエチレン含有量が１５〜３６重量％である
請求項１又は２記載の撥水加工紙用エマルジョン型接着
剤を提供する。The invention according to claim 2 is the water repellent according to claim 1, wherein the acrylic acid ester-based copolymer is a copolymer of an alkyl (meth) acrylate having an alkyl group having 2 to 12 carbon atoms. An emulsion type adhesive for processed paper is provided. The invention according to claim 3 provides the emulsion adhesive for water-repellent processed paper according to claim 1 or 2, wherein the ethylene content of the ethylene-vinyl acetate copolymer is 15 to 36% by weight.
【０００９】以下、本発明を更に詳細に説明する。本発
明におけるアクリル酸エステル系共重合体とは、アルキ
ル（メタ）アクリレート同士、又は、アルキル（メタ）
アクリレートと該アルキル（メタ）アクリレートと共重
合可能な重合モノマーとの共重合体である。なお、本明
細書において、例えば、アルキル（メタ）アクリレート
は、アルキルアクリレート又は／及びアルキルメタクリ
レートを意味する。アルキル（メタ）アクリレートとし
ては、特に限定されるものではないが、アルキル基の炭
素数が２〜１２のアルキル（メタ）アクリレートが好ま
しく用いられ、例えば、エチル（メタ）アクリレート、
ブチル（メタ）アクリレート、２−エチルヘキシル（メ
タ）アクリレート等が挙げられる。The present invention will be described in more detail below. The acrylic acid ester-based copolymer in the present invention means alkyl (meth) acrylates or alkyl (meth) acrylates.
It is a copolymer of an acrylate and a polymerizing monomer copolymerizable with the alkyl (meth) acrylate. In the present specification, for example, alkyl (meth) acrylate means alkyl acrylate and / or alkyl methacrylate. The alkyl (meth) acrylate is not particularly limited, but an alkyl (meth) acrylate having an alkyl group having 2 to 12 carbon atoms is preferably used, and for example, ethyl (meth) acrylate,
Butyl (meth) acrylate, 2-ethylhexyl (meth) acrylate, etc. are mentioned.
【００１０】上記アルキル（メタ）アクリレートのアル
キル基の炭素数が２未満であると、得られるエマルジョ
ン型接着剤の被着体に対する密着性や初期接着力が不十
分となることがあり、逆にアルキル基の炭素数が１２を
超えると、得られるエマルジョン型接着剤の乾燥皮膜の
凝集力が低くなり、接着強度や耐熱性が不十分となるこ
とがあるからである。また、上記アルキル（メタ）アク
リレートと共重合可能なモノマーとしては、（メタ）ア
クリル酸、メチル（メタ）アクリレート、エチレングリ
コール（メタ）アクリレート等が、好適に用いられる例
として挙げられる。If the alkyl group of the above alkyl (meth) acrylate has less than 2 carbon atoms, the resulting emulsion-type adhesive may have insufficient adhesion or initial adhesion to the adherend, and conversely. This is because when the alkyl group has more than 12 carbon atoms, the cohesive force of the dry film of the obtained emulsion-type adhesive becomes low, and the adhesive strength and heat resistance may become insufficient. Further, as the monomer copolymerizable with the alkyl (meth) acrylate, (meth) acrylic acid, methyl (meth) acrylate, ethylene glycol (meth) acrylate and the like can be mentioned as examples that are preferably used.
【００１１】本発明におけるエチレン−酢酸ビニル系共
重合体とは、エチレンと酢酸ビニルとを共重合させたも
のであり、更に、必要により他の共重合可能なモノマー
と共重合されたものであっても良い。上記エチレン−酢
酸ビニル系共重合体におけるエチレン含有量は、好まし
くは１５〜３６重量％とされる。１５重量％未満では、
撥水面への接着性が低下するおそれがあり、３６重量％
を越えると工業製品としての安定的入手が困難となる場
合がある。The ethylene-vinyl acetate copolymer in the present invention is a copolymer of ethylene and vinyl acetate, and is further copolymerized with another copolymerizable monomer, if necessary. May be. The ethylene content in the ethylene-vinyl acetate copolymer is preferably 15 to 36% by weight. Below 15% by weight,
There is a risk that the adhesion to the water repellent surface will decrease, 36% by weight
If it exceeds, it may be difficult to stably obtain it as an industrial product.
【００１２】本発明のエマルジョン型接着剤において、
上記アクリル酸エステル系共重合体は、通常、アクリル
酸エステル系共重合体エマルジョンの形態で用いられ、
上記エチレン−酢酸ビニル系共重合体は、通常、エチレ
ン−酢酸ビニル系共重合体エマルジョンの形態で用いら
れる。In the emulsion type adhesive of the present invention,
The acrylic acid ester-based copolymer is usually used in the form of an acrylic acid ester-based copolymer emulsion,
The above ethylene-vinyl acetate copolymer is usually used in the form of an ethylene-vinyl acetate copolymer emulsion.
【００１３】本発明のエマルジョン型接着剤において、
上記アクリル酸エステル系共重合体及び上記エチレン−
酢酸ビニル系共重合体は、両共重合体の合計量に対し、
好ましくは、アクリル酸エステル系共重合体３０〜７０
重量％及びエチレン−酢酸ビニル系共重合体７０〜３０
重量％の割合で用いられる。In the emulsion type adhesive of the present invention,
The acrylic ester-based copolymer and the ethylene-
Vinyl acetate-based copolymer, the total amount of both copolymers,
Preferably, the acrylic ester copolymer 30 to 70
% By weight and ethylene-vinyl acetate copolymer 70 to 30
Used in a weight percentage.
【００１４】本発明における粘着付与樹脂は、特にその
種類は限定されるものではなく、例えば、重合ロジン系
樹脂、テルペン系樹脂、脂肪族系石油樹脂、芳香族系石
油樹脂、クマロン樹脂、アルキルフェノール樹脂、キシ
レン樹脂等が挙げられる。含有量は、上記アクリル酸エ
ステル系共重合体及びエチレン−酢酸ビニル系共重合体
の合計量１００重量部に対し、５〜１００重量部であ
り、好ましくは２５〜４０重量部である。配合される粘
着付与樹脂が５重量部未満であると撥水面に対する接着
性が極端に低下し、逆に１００重量部を越えると、低温
接着性が低下する。The type of the tackifying resin in the present invention is not particularly limited, and examples thereof include polymerized rosin resin, terpene resin, aliphatic petroleum resin, aromatic petroleum resin, coumarone resin and alkylphenol resin. , Xylene resin and the like. The content is 5 to 100 parts by weight, and preferably 25 to 40 parts by weight, based on 100 parts by weight of the total amount of the acrylic acid ester copolymer and the ethylene-vinyl acetate copolymer. If the tackifying resin to be blended is less than 5 parts by weight, the adhesiveness to the water-repellent surface will be extremely lowered, while if it exceeds 100 parts by weight, the low temperature adhesiveness will be lowered.
【００１５】なお、上記粘着付与樹脂も、通常、エマル
ジョンの形態で用いられ、アクリル酸エステル系共重合
体及びエチレン−酢酸ビニル系共重合体の合計量１００
重量部に対して、５〜１００重量部とは、各樹脂分を基
準として、即ち各樹脂分の乾燥重量を基準としての値を
意味することは勿論である。The above tackifying resin is also usually used in the form of an emulsion, and the total amount of the acrylic ester copolymer and the ethylene-vinyl acetate copolymer is 100.
Of course, 5 to 100 parts by weight with respect to parts by weight means a value based on each resin component, that is, based on the dry weight of each resin component.
【００１６】本発明の撥水加工紙用エマルジョン型接着
剤は、上記成分の他に、ジアルキルスルホ琥珀酸塩、及
び、ポリアミドエピクロルヒドリンが含有されてなるも
のである。上記ジアルキルスルホ琥珀酸エステル塩は、
分子の中心部にスルホ琥珀酸の原子団が存在し、このス
ルホ琥珀酸が種々のアルコールによりエステル化された
もののカルシウム塩もしくはナトリウム塩であり、いわ
ゆる陰イオン（アニオン）型界面活性剤である。これら
のジアルキルスルホ琥珀酸エステル塩は、単独で用いら
れても良いし、２種類以上が併用されても良い。The emulsion adhesive for water-repellent processed paper of the present invention contains dialkylsulfosuccinate and polyamide epichlorohydrin in addition to the above components. The dialkyl sulfosuccinate ester salt,
An atomic group of sulfosuccinic acid is present in the center of the molecule, and this sulfosuccinic acid is a calcium salt or sodium salt of what is esterified with various alcohols, which is a so-called anionic surfactant. These dialkylsulfosuccinate ester salts may be used alone or in combination of two or more kinds.
【００１７】ジアルキルスルホ琥珀酸塩の含有量は上記
アクリル酸エステル系共重合体及びエチレン−酢酸ビニ
ル系共重合体の合計量１００重量部に対し、１重量部以
上とされる。１重量部未満であると撥水面への接着剤の
濡れ性が悪化し、ひいては接着力が低下する。また、配
合されるジアルキルスルホ琥珀酸塩量の上限は特に認め
られず、多量に添加しても特段の効果は得られない。The content of the dialkyl sulfosuccinate is 1 part by weight or more based on 100 parts by weight of the total amount of the acrylic ester copolymer and the ethylene-vinyl acetate copolymer. If the amount is less than 1 part by weight, the wettability of the adhesive to the water-repellent surface is deteriorated and the adhesive strength is lowered. Further, the upper limit of the amount of dialkylsulfosuccinate to be blended is not particularly recognized, and no particular effect can be obtained even if a large amount is added.
【００１８】ポリアミドエピクロルヒドリンの含有量
は、上記アクリル酸エステル系共重合体及びエチレン−
酢酸ビニル系共重合体の合計量１００重量部に対し、１
重量部以上とされる。１重量部未満では接着後の耐水性
が低下する。また、配合されるポリアミドエピクロルヒ
ドリンにアルキルスルホ琥珀酸塩量の上限は特に認めら
れず、多量に添加しても特段の効果は得られない。The content of polyamide epichlorohydrin is the same as that of the above acrylic ester copolymer and ethylene-
1 to 100 parts by weight of the total amount of vinyl acetate copolymer
It is considered to be more than part by weight. If it is less than 1 part by weight, the water resistance after adhesion is lowered. Further, the upper limit of the amount of alkylsulfosuccinate in the polyamide epichlorohydrin to be blended is not particularly recognized, and no particular effect can be obtained even if added in a large amount.
【００１９】（作用）本発明の撥水加工紙用エマルジョ
ン型接着剤は、アクリル酸エステル系共重合体及びエチ
レン−酢酸ビニル系共重合体を含有するエマルジョンで
あるので、優れた初期粘着力を有するとともに、乾燥被
膜の凝集力が高く、優れた常態接着強度を発現する。加
えて、粘着付与樹脂によりワックス処理面等への接着性
が付与され、ジアルキルスルホ琥珀酸塩により撥水面に
対する接着剤の濡れ性が確保されるので、更に撥水面へ
の接着力が向上し、パラフィンとアクリル樹脂の混合物
からなるワックス等を用いて高度な撥水処理が施された
表面に対しても、優れた接着性を発揮し得るのであり、
また、ポリアミドエピクロルヒドリンが含有されている
ので接着後の耐水性が高められている。(Function) Since the emulsion adhesive for water-repellent paper of the present invention is an emulsion containing an acrylic ester copolymer and an ethylene-vinyl acetate copolymer, it has an excellent initial adhesive strength. In addition to that, the dry film has high cohesive force and exhibits excellent normal-state adhesive strength. In addition, the tackifying resin imparts adhesiveness to the wax-treated surface and the like, and the dialkylsulfosuccinate ensures the wettability of the adhesive to the water repellent surface, further improving the adhesive strength to the water repellent surface, It is possible to exhibit excellent adhesiveness even on a surface that has been subjected to a high degree of water repellent treatment using a wax or the like made of a mixture of paraffin and acrylic resin,
Further, since the polyamide epichlorohydrin is contained, the water resistance after adhesion is enhanced.
【００２０】[0020]
【実施例】以下に実施例及び比較例を説明することによ
り、本発明を具体的に説明する。
<実施例１>アクリル酸エステル系共重合体エマルジョン
（ブチルアクリレート−２- エチルヘキシルアクリレー
ト−アクリル酸の３元共重合体エマルジョン）及びエチ
レン−酢酸ビニル系共重合体エマルジョン（クラレ社
製、商品名「ＯＭ−４０００」、エチレン含有量１８重
量％）の混合物の樹脂分１００重量部（アクリル酸エス
テル系共重合体エマルジョン／エチレン−酢酸ビニル系
共重合体エマルジョンの各樹脂分比＝５／５）に対し
て、重合ロジン系粘着付与樹脂（商品名荒川化学社製、
「スーパーエステルＥ−６２５」）を樹脂分換算して３
０重量部、ジアルキルスルホ琥珀酸塩（三洋化成社製、
商品名「サンモリンＯＴ−７０」）を１．５重量部、ポ
リアミドエピクロルヒドリン（住友化学社製、商品名
「スミレン６５０」）を１．５重量部配合した後、水等
で粘度を調整し、粘度８００ｍＰａ・ｓ、不揮発分４７
重量％のエマルジョン型接着剤Ａを得た。EXAMPLES The present invention will be described in detail by describing Examples and Comparative Examples below. <Example 1> Acrylic ester-based copolymer emulsion (butyl acrylate-2-ethylhexyl acrylate-acrylic acid ternary copolymer emulsion) and ethylene-vinyl acetate-based copolymer emulsion (trade name, manufactured by Kuraray Co., Ltd.) OM-4000 ", ethylene content 18% by weight) to 100 parts by weight of resin content (each resin component ratio of acrylic acid ester copolymer emulsion / ethylene-vinyl acetate copolymer emulsion = 5/5). In contrast, polymerized rosin-based tackifying resin (trade name, manufactured by Arakawa Chemical Co., Ltd.,
"Super Ester E-625") converted to resin and 3
0 parts by weight, dialkyl sulfosuccinate (manufactured by Sanyo Kasei Co.,
1.5 parts by weight of the product name "San Morin OT-70") and 1.5 parts by weight of polyamide epichlorohydrin (manufactured by Sumitomo Chemical Co., Ltd., product name "Sumilen 650") are mixed, and then the viscosity is adjusted with water or the like to obtain a viscosity. 800 mPa · s, non-volatile content 47
A weight% emulsion type adhesive A was obtained.
【００２１】<実施例２>配合した粘着付与樹脂を５０重
量部にしたこと以外は、実施例１と全く同様にして、粘
度８００ｍＰａ・ｓ、不揮発分４７重量％のエマルジョ
ン型接着剤Ｂを得た。<Example 2> An emulsion type adhesive B having a viscosity of 800 mPa · s and a nonvolatile content of 47% by weight was obtained in the same manner as in Example 1 except that the compounded tackifying resin was changed to 50 parts by weight. It was
【００２２】<比較例１>実施例１で用いたアクリル酸エ
ステル系共重合体エマルジョン及びエチレン−酢酸ビニ
ル系共重合体エマルジョンの混合物の代りにエチレン−
酢酸ビニル系共重合体エマルジョン（クラレ社製: 商品
名「ＯＭ−４０００」）を用いたこと以外は、実施例１
と全く同様にして、粘度８００ｍＰａ・ｓ、不揮発分４
８重量％のエマルジョン型接着剤Ｃを得た。
<比較例２>配合した粘着付与樹脂の量を３重量部にした
こと以外は、実施例１と全く同様にして、粘度７００ｍ
Ｐａ・ｓ、不揮発分４６重量％のエマルジョン型接着剤
Ｄを得た。
<比較例３>配合した粘着付与樹脂の量を１２０重量部に
したこと以外は、実施例１と全く同様にして、粘度２，
８００ｍＰａ・ｓ、不揮発分３８重量％のエマルジョン
型接着剤Ｋを得た。Comparative Example 1 Ethylene was used instead of the mixture of the acrylic ester copolymer emulsion and the ethylene-vinyl acetate copolymer emulsion used in Example 1.
Example 1 except that a vinyl acetate-based copolymer emulsion (manufactured by Kuraray Co., Ltd .: trade name "OM-4000") was used.
Same as above, viscosity 800mPa · s, non-volatile content 4
8% by weight of emulsion type adhesive C was obtained. <Comparative Example 2> A viscosity of 700 m was obtained in the same manner as in Example 1 except that the amount of the tackifying resin blended was 3 parts by weight.
An emulsion type adhesive D having a Pa · s and a nonvolatile content of 46% by weight was obtained. <Comparative Example 3> A viscosity of 2, was obtained in the same manner as in Example 1 except that the amount of the tackifying resin blended was 120 parts by weight.
An emulsion type adhesive K having 800 mPa · s and a nonvolatile content of 38% by weight was obtained.
【００２３】<比較例４>配合したジアルキルスルホ琥珀
酸塩の量を０．５重量部としたこと以外は、実施例１と
全く同様にして、粘度３，２００ｍＰａ・ｓ、不揮発分
３８重量％のエマルジョン型接着剤を得た。
<比較例５>配合したポリアミドエピクロルヒドリンの量
を０．５重量部としたこと以外は、実施例１と全く同様
にして、粘度７００ｍＰａ・ｓ、不揮発分４７重量％の
エマルジョン型接着剤を得た。Comparative Example 4 A viscosity of 3,200 mPa · s and a non-volatile content of 38% by weight were obtained in the same manner as in Example 1 except that the amount of the blended dialkylsulfosuccinate was changed to 0.5 part by weight. The emulsion type adhesive of was obtained. <Comparative Example 5> An emulsion type adhesive having a viscosity of 700 mPa · s and a non-volatile content of 47% by weight was obtained in exactly the same manner as in Example 1 except that the amount of the polyamide epichlorohydrin blended was 0.5 part by weight. .
【００２４】（性能評価）得られたエマルジョン型接着
剤について次の方法により性能評価を行った。また評価
に用いた撥水加工紙はワックス等により表面が高度に撥
水処理されたライナー紙（撥水度：１０）を用いた。(Performance Evaluation) The obtained emulsion type adhesive was evaluated for performance by the following method. The water-repellent paper used for evaluation was liner paper (water repellency: 10) whose surface was highly water-repellently treated with wax or the like.
【００２５】１）常態（剪断）接着力
被着体として、幅２５ｍｍ×長さ５０ｍｍに裁断した撥
水加工紙２枚を準備し、一方の撥水加工紙の撥水処理面
に接着面積が２５ｍｍ×２５ｍｍ、塗布量（ｗｅｔ）が
５０ｇ／ｍ2 となるようにエマルジョン型接着剤を塗布
した後、このエマルジョン型接着剤上に他方の撥水加工
紙の撥水処理面を互い違い（剪断接着形式）に貼り合わ
せ、圧締圧１５．７ｋＰａ（１６０ｇ／ｃｍ2 ）で圧着
して、接着試験片を作製した。この接着試験片を２０℃
−６５％ＲＨの雰囲気下で７２時間養生した後、引張試
験機（商品名「インストロン１１９５」、インストロン
社製）を用いて、引張速度１００ｍｍ／分で引張試験を
行い、常態（剪断）接着力（Ｎ／ｃｍ2 ）を測定した。
また、同時に接着部分の撥水加工紙の材料破壊率（面積
％）を測定した。1) Normal state (shear) adhesive force As an adherend, two sheets of water-repellent processed paper cut into a width of 25 mm and a length of 50 mm are prepared. After applying an emulsion-type adhesive so that the coating amount is 25 mm × 25 mm and the applied amount (wet) is 50 g / m 2 , the water-repellent treated surface of the other water-repellent treated paper is staggered (shear adhesion) on this emulsion-type adhesive. Type) and pressure-bonded with a clamping pressure of 15.7 kPa (160 g / cm 2 ) to produce an adhesive test piece. This adhesion test piece
After curing in an atmosphere of −65% RH for 72 hours, a tensile tester (trade name “Instron 1195”, manufactured by Instron) is used to perform a tensile test at a tensile speed of 100 mm / min, and normal state (shear). The adhesive force (N / cm 2 ) was measured.
At the same time, the material destruction rate (area%) of the water-repellent processed paper at the bonded portion was measured.
【００２６】２）低温（剪断）接着力
上記と同様の試験片を０℃の雰囲気下で貼り合わせ、圧
締圧１５．７ｋＰａで圧着して、接着試験片を作製し
た。この接着試験片を０℃−５０％ＲＨの雰囲気下で２
４時間養生した後、雰囲気温度０℃−５０％ＲＨのもと
で、引張試験機（商品名「インストロン１１９５」、イ
ンストロン社製）を用いて、引張速度１００ｍｍ／分で
引張試験を行い、低温接着力（Ｎ／ｃｍ2 ）を測定し
た。また、同時に接着部分の撥水加工紙の材料破壊率
（面積％）を測定した。2) Low temperature (shear) adhesive strength Test pieces similar to those described above were bonded together in an atmosphere of 0 ° C. and pressure-bonded at a pressing pressure of 15.7 kPa to prepare adhesion test pieces. This adhesion test piece is subjected to 2 at 0 ° C. and 50% RH atmosphere.
After curing for 4 hours, a tensile tester (trade name "Instron 1195", manufactured by Instron Co., Ltd.) was used at an atmospheric temperature of 0 ° C to 50% RH to perform a tensile test at a tensile speed of 100 mm / min. The low temperature adhesive strength (N / cm 2 ) was measured. At the same time, the material destruction rate (area%) of the water-repellent processed paper at the bonded portion was measured.
【００２７】３）初期接着力（剪断接着力）
被着体として、幅４０ｍｍ×長さ１００ｍｍと幅５０ｍ
ｍ×長さ１００ｍｍに裁断した撥水加工紙を準備し、２
３℃−５０％ＲＨの雰囲気下で、この撥水加工紙の撥水
処理面同士をエマルジョン型接着剤で互い違い（剪断接
着形式）に接着して、接着試験片を作製した。次いで、
初期接着力測定装置（ＪＴトーシ社製）を用いて、初期
剪断接着力（Ｎ／ｃｍ2 ）を測定した。このときの接着
条件及び測定条件は以下のとおりであった。3) Initial adhesive strength (shear adhesive strength) As an adherend, width 40 mm × length 100 mm and width 50 m
Prepare water-repellent paper cut into m x 100 mm length, and
Under an atmosphere of 3 ° C.-50% RH, the water-repellent treated surfaces of this water-repellent paper were alternately bonded with an emulsion type adhesive (shear adhesion type) to prepare an adhesion test piece. Then
The initial shear adhesive force (N / cm 2 ) was measured using an initial adhesive force measuring device (manufactured by JT Toshi). The adhesion conditions and measurement conditions at this time were as follows.
【００２８】 〔接着条件〕接着面積：４０ｍｍ×４０ｍｍ、塗布量（ｗｅｔ）：５０ｇ／ｍ2 塗布スピード：０．６ｍ／秒、オープンタイム：５秒、圧締圧：２９４ｋＰａ 圧締時間：１０秒間、２０秒間、３０秒間の３条件 〔測定条件〕解圧後放置時間：３秒、引張速度：１００ｍｍ／分、測定温度及び 湿度: ２０℃×６５％ＲＨ[Adhesive conditions] Adhesive area: 40 mm × 40 mm, coating amount (wet): 50 g / m 2 coating speed: 0.6 m / sec, open time: 5 seconds, clamping pressure: 294 kPa clamping time: 10 seconds , 3 seconds of 20 seconds, 30 seconds [Measurement condition] Left time after decompression: 3 seconds, tensile speed: 100 mm / min, measurement temperature and humidity: 20 ° C x 65% RH
【００２９】４）耐水性（落下時間）
１）の場合と同様にして作製した接着試験片を２３℃−
５０％ＲＨの雰囲気下で７２時間養生した後、この接着
試験片の一方の撥水加工紙（被着体）の下端に１００ｇ
の分銅を吊り下げた状態で２０℃の水中に垂直に浸漬
し、撥水加工紙（被着体）が接着面で剥離して落下する
までの時間を測定した。4) Water resistance (falling time) An adhesive test piece prepared in the same manner as in 1) was prepared at 23 ° C.
After curing for 72 hours in an atmosphere of 50% RH, 100 g was applied to the lower end of one water-repellent paper (adherend) of this adhesive test piece.
The weight of No. 2 was vertically dipped in water at 20 ° C., and the time until the water-repellent paper (adherend) was peeled off at the adhesive surface and dropped was measured.
【００３０】５）濡れ性
エマルジョン型接着剤を厚み２５μのドクターブレード
で撥水加工紙の撥水面に塗布し、該接着剤の濡れ状態
を、目視により５段階評価をおこなった。数字が大きい
ほど濡れ性が優れていることを示す。表１に実施例１〜
２、比較例１〜５の評価結果を示した。5) Wettable emulsion type adhesive was applied to the water-repellent surface of the water-repellent paper with a doctor blade having a thickness of 25 μm, and the wet state of the adhesive was visually evaluated in 5 grades. The higher the number, the better the wettability. Table 1 shows Examples 1 to 1.
2 and the evaluation results of Comparative Examples 1 to 5 are shown.
【００３１】[0031]
【表１】
表１により、本発明の撥水加工紙用エマルジョン型接着
剤においては、実施例１〜２に示す如く、比較例１〜５
に対して、常態（剪断）接着力、低温（剪断）接着力、
初期接着力等に優れており、耐水性、濡れ性等も含め
て、バランスの良い性能を発揮することが判る。[Table 1] According to Table 1, in the emulsion type adhesive for water repellent processed paper of the present invention, as shown in Examples 1 and 2, Comparative Examples 1 to 5
In contrast, normal (shear) adhesive force, low temperature (shear) adhesive force,
It can be seen that it has excellent initial adhesive strength, etc., and exhibits well-balanced performance, including water resistance and wettability.
【００３２】[0032]
【発明の効果】本発明の撥水加工紙用エマルジョン型接
着剤は上述の通り構成されており、初期粘着色、凝集
力、皮膜形成後の接着強度等を高める働きのあるアクリ
ル酸エステル系共重合体及びエチレン−酢酸ビニル系共
重合体の混合物に対して、初期接着力、撥水面への接着
性、耐水性等に効果を発揮する、粘着付与樹脂、ジアル
キルスルホ琥珀酸塩及びポリアミドエピクロルヒドリン
がバランスよく含有されているので、ワックス等により
撥水加工された撥水加工紙に対して、水を含むエマルジ
ョン系接着剤でありながらも、バランスの良い接着性能
を発揮することが出来るものである。このことにより、
接着面で被着体同士がずれることがなく、十分な接着力
が得られる撥水加工紙用エマルジョン型接着剤を提供す
ることが可能となる。更に、パラフィンとアクリル樹脂
の混合物からなるワックス等を用いて高度な撥水処理が
施された表面に対しても、優れた接着性を発揮し得る。The emulsion-type adhesive for water-repellent processed paper of the present invention is constituted as described above, and is an acrylic acid ester-based adhesive having a function of increasing initial tack color, cohesive force, adhesive strength after film formation and the like. With respect to the mixture of the polymer and the ethylene-vinyl acetate copolymer, the tackifying resin, the dialkylsulfosuccinate and the polyamide epichlorohydrin, which exert an effect on the initial adhesive force, the adhesiveness to the water-repellent surface, the water resistance, etc. Since it is contained in a well-balanced manner, it can exhibit a well-balanced adhesive performance to water-repellent paper that has been water-repellently processed with wax etc., even though it is an emulsion adhesive containing water. . By this,
It is possible to provide an emulsion-type adhesive for water-repellent processed paper which does not cause the adherends to be displaced from each other on the adhesive surface and can obtain a sufficient adhesive force. Furthermore, it can exhibit excellent adhesiveness even to a surface that has been subjected to a high degree of water repellent treatment using a wax or the like made of a mixture of paraffin and acrylic resin.
Claims (3)
レン−酢酸ビニル系共重合体の合計量１００重量部に対
して、粘着付与樹脂が５〜１００重量部、ジアルキルス
ルホ琥珀酸塩が１重量部以上及びポリアミドエピクロル
ヒドリンが１重量部以上含有されてなることを特徴とす
る撥水加工紙用エマルジョン型接着剤。1. A tackifying resin is 5 to 100 parts by weight, and a dialkylsulfosuccinate is 1 part by weight, based on 100 parts by weight of the total amount of the acrylic ester copolymer and the ethylene-vinyl acetate copolymer. An emulsion-type adhesive for water-repellent paper, which comprises the above and polyamide epichlorohydrin in an amount of 1 part by weight or more.
キル基の炭素数が２〜１２のアルキル（メタ）アクリレ
ートの共重合体であることを特徴とする請求項１記載の
撥水加工紙用エマルジョン型接着剤。2. The water-repellent processed paper according to claim 1, wherein the acrylic acid ester-based copolymer is a copolymer of an alkyl (meth) acrylate having an alkyl group having 2 to 12 carbon atoms. Emulsion type adhesive.
レン含有量が１５〜３６重量％であることを特徴とする
請求項１又は２記載の撥水加工紙用エマルジョン型接着
剤。3. The emulsion adhesive for water repellent paper according to claim 1, wherein the ethylene content of the ethylene-vinyl acetate copolymer is 15 to 36% by weight.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001227836A JP2003041221A (en) | 2001-07-27 | 2001-07-27 | Emulsion type adhesive for water-repellent processed paper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001227836A JP2003041221A (en) | 2001-07-27 | 2001-07-27 | Emulsion type adhesive for water-repellent processed paper |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2003041221A true JP2003041221A (en) | 2003-02-13 |
Family
ID=19060434
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2001227836A Pending JP2003041221A (en) | 2001-07-27 | 2001-07-27 | Emulsion type adhesive for water-repellent processed paper |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2003041221A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005187590A (en) * | 2003-12-25 | 2005-07-14 | Chuo Rika Kogyo Corp | Adhesive composition |
-
2001
- 2001-07-27 JP JP2001227836A patent/JP2003041221A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005187590A (en) * | 2003-12-25 | 2005-07-14 | Chuo Rika Kogyo Corp | Adhesive composition |
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