JPH09188858A - Production of self-adhesive tape - Google Patents
Production of self-adhesive tapeInfo
- Publication number
- JPH09188858A JPH09188858A JP8002363A JP236396A JPH09188858A JP H09188858 A JPH09188858 A JP H09188858A JP 8002363 A JP8002363 A JP 8002363A JP 236396 A JP236396 A JP 236396A JP H09188858 A JPH09188858 A JP H09188858A
- Authority
- JP
- Japan
- Prior art keywords
- release agent
- self
- emulsion
- adhesive tape
- 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
- 239000002390 adhesive tape Substances 0.000 title claims abstract description 15
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 9
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 37
- 239000000839 emulsion Substances 0.000 claims abstract description 30
- 239000007787 solid Substances 0.000 claims abstract description 15
- 239000010410 layer Substances 0.000 claims abstract description 14
- 229920002689 polyvinyl acetate Polymers 0.000 claims abstract description 9
- 239000011118 polyvinyl acetate Substances 0.000 claims abstract description 9
- 239000012790 adhesive layer Substances 0.000 claims abstract description 7
- 229920001577 copolymer Polymers 0.000 claims abstract description 6
- 125000002887 hydroxy group Chemical group [H]O* 0.000 claims abstract description 6
- IMROMDMJAWUWLK-UHFFFAOYSA-N Ethenol Chemical group OC=C IMROMDMJAWUWLK-UHFFFAOYSA-N 0.000 claims abstract description 5
- 239000000463 material Substances 0.000 claims description 11
- 239000000203 mixture Substances 0.000 claims description 10
- 229920000098 polyolefin Polymers 0.000 claims description 6
- -1 alkyl compound Chemical class 0.000 claims description 5
- 125000004432 carbon atom Chemical group C* 0.000 claims description 4
- 239000000758 substrate Substances 0.000 abstract description 10
- 239000000853 adhesive Substances 0.000 abstract description 4
- 239000006185 dispersion Substances 0.000 abstract description 4
- 125000000217 alkyl group Chemical group 0.000 abstract description 3
- 238000001035 drying Methods 0.000 abstract description 3
- 229920000089 Cyclic olefin copolymer Polymers 0.000 abstract 1
- 230000032683 aging Effects 0.000 abstract 1
- 238000013329 compounding Methods 0.000 abstract 1
- 239000011248 coating agent Substances 0.000 description 10
- 238000000576 coating method Methods 0.000 description 10
- 239000004820 Pressure-sensitive adhesive Substances 0.000 description 7
- 239000004094 surface-active agent Substances 0.000 description 7
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 6
- 230000001070 adhesive effect Effects 0.000 description 6
- 239000004372 Polyvinyl alcohol Substances 0.000 description 5
- XTXRWKRVRITETP-UHFFFAOYSA-N Vinyl acetate Chemical compound CC(=O)OC=C XTXRWKRVRITETP-UHFFFAOYSA-N 0.000 description 5
- 239000000835 fiber Substances 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 239000004745 nonwoven fabric Substances 0.000 description 5
- 229920002451 polyvinyl alcohol Polymers 0.000 description 5
- 230000003578 releasing effect Effects 0.000 description 5
- 230000000052 comparative effect Effects 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- VLKZOEOYAKHREP-UHFFFAOYSA-N n-Hexane Chemical compound CCCCCC VLKZOEOYAKHREP-UHFFFAOYSA-N 0.000 description 3
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 239000000084 colloidal system Substances 0.000 description 2
- MWKFXSUHUHTGQN-UHFFFAOYSA-N decan-1-ol Chemical compound CCCCCCCCCCO MWKFXSUHUHTGQN-UHFFFAOYSA-N 0.000 description 2
- 235000014113 dietary fatty acids Nutrition 0.000 description 2
- 238000007720 emulsion polymerization reaction Methods 0.000 description 2
- 229930195729 fatty acid Natural products 0.000 description 2
- 239000000194 fatty acid Substances 0.000 description 2
- 150000004665 fatty acids Chemical class 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 239000004014 plasticizer Substances 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- 238000006116 polymerization reaction Methods 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229920002994 synthetic fiber Polymers 0.000 description 2
- VZCYOOQTPOCHFL-UHFFFAOYSA-N trans-butenedioic acid Natural products OC(=O)C=CC(O)=O VZCYOOQTPOCHFL-UHFFFAOYSA-N 0.000 description 2
- 239000005968 1-Decanol Substances 0.000 description 1
- QWDQYHPOSSHSAW-UHFFFAOYSA-N 1-isocyanatooctadecane Chemical compound CCCCCCCCCCCCCCCCCCN=C=O QWDQYHPOSSHSAW-UHFFFAOYSA-N 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 241001265525 Edgeworthia chrysantha Species 0.000 description 1
- 241000196324 Embryophyta Species 0.000 description 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 1
- 239000005977 Ethylene Substances 0.000 description 1
- VZCYOOQTPOCHFL-OWOJBTEDSA-N Fumaric acid Natural products OC(=O)\C=C\C(O)=O VZCYOOQTPOCHFL-OWOJBTEDSA-N 0.000 description 1
- 244000043261 Hevea brasiliensis Species 0.000 description 1
- 240000000907 Musa textilis Species 0.000 description 1
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical group CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 description 1
- OFOBLEOULBTSOW-UHFFFAOYSA-N Propanedioic acid Natural products OC(=O)CC(O)=O OFOBLEOULBTSOW-UHFFFAOYSA-N 0.000 description 1
- 239000004902 Softening Agent Substances 0.000 description 1
- 229920002978 Vinylon Polymers 0.000 description 1
- UKLDJPRMSDWDSL-UHFFFAOYSA-L [dibutyl(dodecanoyloxy)stannyl] dodecanoate Chemical compound CCCCCCCCCCCC(=O)O[Sn](CCCC)(CCCC)OC(=O)CCCCCCCCCCC UKLDJPRMSDWDSL-UHFFFAOYSA-L 0.000 description 1
- 125000005396 acrylic acid ester group Chemical group 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 239000002313 adhesive film Substances 0.000 description 1
- 125000003172 aldehyde group Chemical group 0.000 description 1
- 239000003963 antioxidant agent Substances 0.000 description 1
- 230000003078 antioxidant effect Effects 0.000 description 1
- 229910000019 calcium carbonate Inorganic materials 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 125000002843 carboxylic acid group Chemical group 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 239000012975 dibutyltin dilaurate Substances 0.000 description 1
- 238000004945 emulsification Methods 0.000 description 1
- 125000003700 epoxy group Chemical group 0.000 description 1
- 229920006242 ethylene acrylic acid copolymer Polymers 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 239000001530 fumaric acid Substances 0.000 description 1
- 125000000524 functional group Chemical group 0.000 description 1
- 150000004820 halides Chemical group 0.000 description 1
- 238000005470 impregnation Methods 0.000 description 1
- IQPQWNKOIGAROB-UHFFFAOYSA-N isocyanate group Chemical group [N-]=C=O IQPQWNKOIGAROB-UHFFFAOYSA-N 0.000 description 1
- 125000000468 ketone group Chemical group 0.000 description 1
- VZCYOOQTPOCHFL-UPHRSURJSA-N maleic acid Chemical compound OC(=O)\C=C/C(O)=O VZCYOOQTPOCHFL-UPHRSURJSA-N 0.000 description 1
- 239000011976 maleic acid Substances 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- 229920003052 natural elastomer Polymers 0.000 description 1
- 229920001194 natural rubber Polymers 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 229920003051 synthetic elastomer Polymers 0.000 description 1
- 239000012209 synthetic fiber Substances 0.000 description 1
- 239000005061 synthetic rubber Substances 0.000 description 1
- 229920001567 vinyl ester resin Polymers 0.000 description 1
Landscapes
- Lubricants (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Adhesive Tapes (AREA)
- Polymerisation Methods In General (AREA)
- Adhesives Or Adhesive Processes (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、不織布や和紙等の
繊維質基材の片面に粘着剤層、他面に離型層が設けられ
た粘着テープの製造方法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for producing an adhesive tape having a fibrous base material such as non-woven fabric or Japanese paper provided with an adhesive layer on one side and a release layer on the other side.
【０００２】[0002]
【従来の技術】不織布や和紙等の繊維質基材を用いた粘
着テープは基材のしなやかさ、手切れ性を兼ね備え、強
伸度のバランス等にもすぐれているためマスキングテー
プなど養生用にも多く用いられている。粘着テープは、
一般に粘着剤層が設けられている表面を内側にして粘着
フィルムをロール状に巻き、適宜幅に切断しテープ状と
して市販される。不織布や和紙等の繊維質基材を支持体
とする粘着テープにおいては、これを巻き戻して使用す
る際に粘着剤層が背面に接着して剥ぎ取られず、容易に
巻き戻すことができるように、テープ背面に安価な酢酸
ビニル樹脂の如き下塗り剤をコーティングし、この上に
離型剤を塗布して離型層が設けられる。2. Description of the Related Art Adhesive tapes using fibrous base materials such as non-woven fabrics and Japanese paper have flexibility and hand-cutting properties of the base materials, and also have excellent balance of strength and elongation. Is also often used. Adhesive tape
In general, the adhesive film is wound in a roll shape with the surface provided with the adhesive layer inside and cut into a suitable width to be commercially available as a tape. In an adhesive tape that uses a fibrous base material such as non-woven fabric or Japanese paper as a support, the adhesive layer does not adhere to the back surface and is not peeled off when it is rewound and used, so that it can be easily rewound. An undercoating agent such as an inexpensive vinyl acetate resin is coated on the back surface of the tape, and a release agent is applied thereon to form a release layer.
【０００３】特開昭４９−９５４９号公報には、ポリ酢
酸ビニルエマルジョン等に界面活性剤を添加した処理液
で基材の背面を処理し乾燥させた離型層を設けることが
記載されている。Japanese Unexamined Patent Publication No. 49-9549 discloses that a release layer is formed by treating the back surface of a substrate with a treatment liquid prepared by adding a surfactant to polyvinyl acetate emulsion or the like and drying it. .
【０００４】[0004]
【発明が解決しようとする課題】従来のように下塗り剤
をコーティングし、この上に離型剤を塗布して離型層を
設ける方法では下塗り剤のコーティングと離型剤の塗布
乾燥という２工程が必要であり、製造能率はよくない。In the conventional method of coating an undercoating agent and then applying a release agent thereon to form a release layer, there are two steps of coating the undercoating agent and coating and drying the release agent. Is required, and the production efficiency is not good.
【０００５】また、上記公報に記載のように、ポリ酢酸
ビニルエマルジョンに界面活性剤を添加した処理液で処
理した離型層は、エマルジョンの粒子同士が融着し皮膜
化しているが、離型層表面の界面活性剤がこれに接する
粘着剤層に移行して粘着性能を阻害することがある。
又、界面活性剤の親水性が非常に高いので基材の耐水性
を低下させる場合がある。更に、ポリ酢酸ビニルエマル
ジョンに界面活性剤を添加したものは離型性能が不充分
でロール状の粘着テープを展開し難く、場合によっては
粘着剤層が離型層面に剥ぎ取られることもある。Further, as described in the above publication, in the release layer treated with a treatment liquid in which a surfactant is added to polyvinyl acetate emulsion, emulsion particles are fused and formed into a film. The surface-active agent on the surface of the layer may migrate to the pressure-sensitive adhesive layer in contact with the surface-active agent to impair the adhesive performance.
Further, since the surfactant has a very high hydrophilicity, the water resistance of the substrate may be lowered. Further, a polyvinyl acetate emulsion to which a surfactant is added has an insufficient releasing performance, and it is difficult to develop a roll-shaped adhesive tape, and in some cases, the adhesive layer may be peeled off to the release layer surface.
【０００６】本発明は上記従来の問題点を解消し、適度
な離型性により展開し易く、経時で粘着特性を阻害せ
ず、簡単な工程で製造することのできる粘着テープの製
造方法を提供することを目的とする。The present invention solves the above-mentioned conventional problems, provides a method for producing an adhesive tape which is easy to develop due to an appropriate mold releasability, does not impair the adhesive property over time, and can be produced by a simple process. The purpose is to do.
【０００７】[0007]
【課題を解決するための手段】本発明の粘着テープの製
造方法は、ポリ酢酸ビニルエマルジョンの固形分１００
重量部に対し、ビニルアルコール部分を５０モル％以上
含有する酢酸ビニル共重合体の水酸基１当量と炭素数６
〜３０である長鎖アルキル化合物０．５当量以上とを反
応させて得られる離型剤成分と酸変性ポリオレフィン共
重合体とからなる離型剤エマルジョンの固形分０．１〜
３０重量部が添加されてなる水分散系離型剤組成物を繊
維質基材の片面に塗布乾燥して離型層を形成し、該基材
の他の面に粘着剤層を設けることを特徴とする。A method for producing an adhesive tape according to the present invention comprises a polyvinyl acetate emulsion having a solid content of 100.
1 part by weight of hydroxyl group and 6 carbon atoms of a vinyl acetate copolymer containing 50 mol% or more of vinyl alcohol portion based on parts by weight.
The solid content of the release agent emulsion comprising a release agent component obtained by reacting with 0.5 equivalents or more of a long-chain alkyl compound of 30 to 30 and an acid-modified polyolefin copolymer
An aqueous dispersion release agent composition containing 30 parts by weight is applied to one side of a fibrous base material and dried to form a release layer, and an adhesive layer is provided on the other side of the base material. Characterize.
【０００８】本発明で使用する繊維質基材とは、パル
プ、マニラ麻、ミツマタ繊維、コウゾ繊維等の植物繊
維、ビニロン繊維等の合成繊維、スフ等の人造繊維やこ
れらの混合物を水中に分散させ、これを漉いたものや不
織布のように繊維を絡み合わせたものなど、通孔の多い
ものである。The fibrous base material used in the present invention means pulp, manila hemp, mitsumata fiber, kouzo fiber and other plant fibers, vinylon fiber and other synthetic fibers, suf and other artificial fibers and mixtures thereof dispersed in water. , Those with many holes, such as those made by squeezing this and entangled fibers like non-woven fabric.
【０００９】ポリ酢酸ビニルエマルジョンは乳化重合に
より得られるもので、ポリビニルアルコールを保護コロ
イドとし、可塑剤を含有する酢酸ビニルモノマー単体の
重合物が最も一般的であるが、これに界面活性剤やその
他の添加物を含有していてもよい。更に乳化重合に際し
ては他のモノマーを共重合してもよく、例えば、アクリ
ル酸エステル、マレイン酸／フマル酸エステル、脂肪酸
ビニルエステル、エチレン等が各種の性能を付与するた
めに用いられる。Polyvinyl acetate emulsion is obtained by emulsion polymerization, and is most commonly a polymer of vinyl acetate monomer simple substance containing polyvinyl alcohol as a protective colloid and containing a plasticizer. The additive may be included. Further, during emulsion polymerization, other monomers may be copolymerized, and for example, acrylic acid ester, maleic acid / fumaric acid ester, fatty acid vinyl ester, ethylene and the like are used to impart various properties.
【００１０】離型剤エマルジョンは離型剤成分と酸変性
ポリオレフィン共重合体とからなる。離型剤成分は、ビ
ニルアルコール部分が５０モル％以上の酢酸ビニル共重
合体の水酸基１当量に対して、イソシアネート基、カル
ボン酸基、酸ハライド基、ケトン基、アルデヒド基、エ
ポキシ基の群から選ばれ、上記水酸基と反応する官能基
を有するアルキル基の炭素数が６〜３０である長鎖アル
キル化合物を０．５当量以上反応させて得られる。上記
酢酸ビニル共重合体の重合度は３００〜５０００である
ものが好ましい。酸変性ポリオレフィン共重合体は炭素
数が１０〜３０である１種類以上の脂肪酸、又は０．２
〜８００の酸価を有するものである。The release agent emulsion comprises a release agent component and an acid-modified polyolefin copolymer. The release agent component is a group of isocyanate group, carboxylic acid group, acid halide group, ketone group, aldehyde group, epoxy group per 1 equivalent of hydroxyl group of vinyl acetate copolymer having vinyl alcohol portion of 50 mol% or more. It is obtained by reacting 0.5 equivalent or more of a long-chain alkyl compound having an alkyl group having a functional group that reacts with the hydroxyl group and has 6 to 30 carbon atoms. The vinyl acetate copolymer preferably has a degree of polymerization of 300 to 5,000. The acid-modified polyolefin copolymer is one or more kinds of fatty acids having 10 to 30 carbon atoms, or 0.2
It has an acid value of ˜800.
【００１１】本発明で用いる水分散系離型剤組成物は上
記２種類のエマルジョンを所定量混合したものである。
混合比はポリ酢酸ビニルエマルジョンの固形分１００重
量部に対して離型剤エマルジョンの固形分が０．１〜３
０重量部が好ましい。離型剤エマルジョンの固形分が
０．１重量部よりも少ないと良好な剥離効果が得られ
ず、又、３０重量部を超えると含浸効果が大きくなり皮
膜の性能が低下する。The water-dispersed release agent composition used in the present invention is a mixture of the above-mentioned two kinds of emulsions in predetermined amounts.
The mixing ratio is such that the solid content of the release agent emulsion is 0.1 to 3 with respect to 100 parts by weight of the solid content of the polyvinyl acetate emulsion.
0 parts by weight is preferred. If the solid content of the release agent emulsion is less than 0.1 parts by weight, a good peeling effect cannot be obtained, and if it exceeds 30 parts by weight, the impregnation effect becomes large and the performance of the coating deteriorates.
【００１２】上記２種類のエマルジョンの混合は攪拌し
ながら行うが、エマルジョン同士であるから分散性はよ
く混合作業は非常に容易にできる。上記混合エマルジョ
ンを繊維質基材に塗布する。塗布物はエマルジョンであ
るから、塗布手段はバーコーターやブレードコーターに
よる塗布、グラビアロールによる塗布等が好適である。
塗布したエマルジョンに最低造膜温度（ＭＦＴ）以上の
熱を与えて乾燥し、離型層が得られる。The above-mentioned two kinds of emulsions are mixed with stirring, but since they are emulsions, the dispersibility is good and the mixing operation can be very easy. The mixed emulsion is applied to a fibrous base material. Since the coating material is an emulsion, the coating means is preferably coating with a bar coater or blade coater, coating with a gravure roll, or the like.
The applied emulsion is dried by applying heat above the minimum film-forming temperature (MFT) to obtain a release layer.
【００１３】本発明で使用する粘着剤としては、天然ゴ
ム系、合成ゴム系、アクリル系等、各種のものが使用で
きる。これら粘着剤には粘着付与樹脂、軟化剤、ワック
ス、老化防止剤、その他炭酸カルシウム等の充填剤を適
宜添加することができる。As the pressure-sensitive adhesive used in the present invention, various types such as natural rubber type, synthetic rubber type and acrylic type can be used. A tackifying resin, a softening agent, a wax, an antioxidant, and other fillers such as calcium carbonate can be added to these pressure-sensitive adhesives as appropriate.
【００１４】（作用）本発明では、ポリ酢酸ビニルエマ
ルジョンの固形分１００重量部に対し、ビニルアルコー
ル部分を５０モル％以上含有する酢酸ビニル共重合体の
水酸基１当量と炭素数６〜３０である長鎖アルキル化合
物０．５当量以上とを反応させて得られる離型剤成分と
酸変性ポリオレフィン共重合体とからなる離型剤エマル
ジョンの固形分０．１〜３０重量部が添加された水分散
系離型剤組成物による離型層を形成するので、該離型層
の表面張力が改質される。これにより粘着テープの背面
に適度な離型性が付与され、特に離型剤を塗布せずとも
ロール状とした粘着テープは展開され易くなる。又、粘
着特性が低下することがなく、簡単な工程で粘着テープ
を製造することができる。(Function) In the present invention, 1 equivalent of hydroxyl group and carbon number of 6 to 30 of a vinyl acetate copolymer containing 50 mol% or more of vinyl alcohol portion relative to 100 parts by weight of solid content of polyvinyl acetate emulsion. A water dispersion in which 0.1 to 30 parts by weight of the solid content of a release agent emulsion comprising a release agent component obtained by reacting a long-chain alkyl compound with 0.5 equivalent or more and an acid-modified polyolefin copolymer is added Since the release layer is formed by the system release agent composition, the surface tension of the release layer is modified. As a result, an appropriate releasing property is imparted to the back surface of the pressure-sensitive adhesive tape, and the roll-shaped pressure-sensitive adhesive tape is easily spread without applying a release agent. Further, the adhesive property does not deteriorate, and the adhesive tape can be manufactured by a simple process.
【００１５】[0015]
【発明の実施の形態】次に本発明の実施例を説明する。離型剤エマルジョンの作製 脱水したキシレン５０ｇ中にポリビニルアルコール（重
合度１１００，完全鹸化物）１０ｇを分散し、これにオ
クタデシルイソシアネート６７ｇと触媒（ジラウリン酸
ジブチル錫）０．０１ｇを加え、上記のポリビニルアル
コールと反応させた。この反応溶液を１０００ｇのメタ
ノール中に注いで得られた白色沈澱物をメタノールに次
いでヘキサンで洗浄し、乾燥して離型剤を得た。Next, embodiments of the present invention will be described. Preparation of Release Agent Emulsion In 50 g of dehydrated xylene, 10 g of polyvinyl alcohol (polymerization degree: 1100, completely saponified product) was dispersed, and 67 g of octadecyl isocyanate and 0.01 g of catalyst (dibutyltin dilaurate) were added to the polyvinyl alcohol. Reacted with alcohol. The reaction solution was poured into 1000 g of methanol, and the obtained white precipitate was washed with methanol and then with hexane and dried to obtain a release agent.
【００１６】得られた離型剤を用いて、以下の配合で高
圧乳化法により離型剤エマルジョンを作製した。 離型剤 １５ｇ 酸変性ポリオレフィン（エチレン−アクリル酸共重合体） ４ｇ 界面活性剤 １ｇ 油分（１−デカノール） ４ｇ 水 ７６ｇUsing the obtained releasing agent, a releasing agent emulsion was prepared by the high pressure emulsification method with the following composition. Release agent 15 g Acid-modified polyolefin (ethylene-acrylic acid copolymer) 4 g Surfactant 1 g Oil (1-decanol) 4 g Water 76 g
【００１７】（実施例１）酢酸ビニル１００重量部に対
し、保護コロイドとしてＰＶＡ（ポリビニルアルコー
ル）２０重量部、可塑剤１５重量部を含有する酢酸ビニ
ルエマルジョンの固形分１００重量部に、上記離型剤エ
マルジョンを固形分で３０重量部混合し、充分に攪拌し
て水分散系離型剤組成物とした。坪量３０ｇ／ｍ2 の不
織布基材に上記組成物をアプリケーターで手引き塗布
し、１４０℃に加熱したオーブンで乾燥して坪量４３ｇ
／ｍ2 のコーティング基材を得た。(Example 1) 100 parts by weight of vinyl acetate, 100 parts by weight of a solid content of a vinyl acetate emulsion containing 20 parts by weight of PVA (polyvinyl alcohol) as a protective colloid and 15 parts by weight of a plasticizer were added to the above mold release. The agent emulsion was mixed in a solid content of 30 parts by weight and sufficiently stirred to obtain a water-dispersed release agent composition. The above composition is manually applied to a non-woven fabric substrate having a basis weight of 30 g / m 2 with an applicator and dried in an oven heated to 140 ° C. to obtain a basis weight of 43 g.
A coating substrate of / m 2 was obtained.
【００１８】（実施例２）離型剤エマルジョンの固形分
の混合量を２０重量部とした以外は実施例１と同様にし
てコーティング基材を得た。Example 2 A coated substrate was obtained in the same manner as in Example 1 except that the solid content of the release agent emulsion was changed to 20 parts by weight.
【００１９】（実施例３）離型剤エマルジョンの固形分
の混合量を１０重量部とした以外は実施例１と同様にし
てコーティング基材を得た。Example 3 A coating substrate was obtained in the same manner as in Example 1 except that the solid content of the release agent emulsion was changed to 10 parts by weight.
【００２０】（比較例１）水分散系離型剤組成物の代わ
りに、酢酸ビニルだけをコーティングした以外は実施例
１と同様にしてコーティング基材を得た。Comparative Example 1 A coated substrate was obtained in the same manner as in Example 1 except that only vinyl acetate was coated instead of the water-dispersed release agent composition.
【００２１】（比較例２）比較例１で得た基材のコーテ
ィング面に、更に、トルエンに溶解した長鎖アルキル系
ポリマー（一方社油脂社製，商品名「ピーロイル１０１
０」）を厚み０．５μｍで塗布した以外は実施例１と同
様にしてコーティング基材を得た。Comparative Example 2 On the coated surface of the substrate obtained in Comparative Example 1, a long-chain alkyl polymer dissolved in toluene (manufactured by Yatsha Yushi Co., Ltd., trade name "Piroyl 101") was used.
0 ″) was applied in a thickness of 0.5 μm to obtain a coated substrate in the same manner as in Example 1.
【００２２】性能評価 （１）高速剥離力 展開力の代用特性値として高速剥離力を測定した。この
方法は試料のコーティング面に粘着テープ（積水化学社
製，商品名「セロテープ＃２５２」，幅１８ｍｍ）を圧
着し、高速剥離試験機で６０ｍ／分の速度で１８０度剥
離したときの剥離力を測定した。 （２）ボールタック コーティング面に粘着テープを貼り付けた後、即座に剥
がしたものと、４０℃で１週間促進劣化した後に剥がし
たものとについて調べた。以上の結果を表１に示す。 Performance Evaluation (1) High Speed Peeling Force The high speed peeling force was measured as a substitute characteristic value of the developing force. This method is a peeling force when a pressure-sensitive adhesive tape (manufactured by Sekisui Chemical Co., Ltd., trade name "Cellotape # 252", width 18 mm) is pressure-bonded to the coated surface of the sample and peeled 180 degrees at a speed of 60 m / min with a high-speed peel tester Was measured. (2) Ball Tack The adhesive tape was affixed to the coated surface and then immediately peeled off, and the one that was peeled off after accelerated deterioration at 40 ° C. for one week was examined. Table 1 shows the above results.
【００２３】[0023]
【表１】 [Table 1]
【００２４】表１から明らかなとおり、実施例１〜３の
ものは展開性がよいので高速剥離することができ、経時
においても粘着力は殆ど低下しない。しかし、本発明に
おける離型剤エマルジョンを用いていない比較例１及び
比較例２のものは、剥離力が大きく展開し難いか、剥離
し易いが粘着力が低下する。As is clear from Table 1, the products of Examples 1 to 3 have good spreadability and therefore can be peeled at a high speed, and the adhesive strength hardly decreases even with the passage of time. However, in Comparative Examples 1 and 2 in which the release agent emulsion according to the present invention is not used, the peeling force is difficult to develop greatly, and the peeling is easy, but the adhesive force is lowered.
【００２５】[0025]
【発明の効果】本発明粘着テープの製造方法は以上の構
成であり、粘着テープの背面に適度な離型性が付与され
て展開し易く、ロール状に巻いて保管しても経時で粘着
特性が低下することのない粘着テープを簡単な工程で製
造することができる。EFFECT OF THE INVENTION The method for producing an adhesive tape of the present invention has the above-mentioned constitution. The adhesive tape has an appropriate releasing property and is easily spread, and the adhesive property is improved with time even when wound in a roll and stored. It is possible to manufacture a pressure-sensitive adhesive tape which does not deteriorate in a simple process.
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.6 識別記号 庁内整理番号 ＦＩ 技術表示箇所 Ｃ０９Ｊ 131/04 ＪＣＹ Ｃ０９Ｊ 131/04 ＪＣＹ Ｃ１０Ｍ 159/12 Ｃ１０Ｍ 159/12 // Ｃ０８Ｌ 29/04 ＬＧＶ Ｃ０８Ｌ 29/04 ＬＧＶ (Ｃ１０Ｍ 159/12 145:04 133:22） Ｃ１０Ｎ 40:36 ─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. 6 Identification code Internal reference number FI Technical display location C09J 131/04 JCY C09J 131/04 JCY C10M 159/12 C10M 159/12 // C08L 29/04 LGV C08L 29/04 LGV (C10M 159/12 145: 04 133: 22) C10N 40:36
Claims (1)
００重量部に対し、ビニルアルコール部分を５０モル％
以上含有する酢酸ビニル共重合体の水酸基１当量と炭素
数６〜３０である長鎖アルキル化合物０．５当量以上と
を反応させて得られる離型剤成分と酸変性ポリオレフィ
ン共重合体とからなる離型剤エマルジョンの固形分０．
１〜３０重量部が添加されてなる水分散系離型剤組成物
を繊維質基材の片面に塗布乾燥して離型層を形成し、該
基材の他の面に粘着剤層を設けることを特徴とする粘着
テープの製造方法。1. Solid content 1 of polyvinyl acetate emulsion
50 mol% of vinyl alcohol portion with respect to 00 parts by weight
A release agent component obtained by reacting 1 equivalent of a hydroxyl group of the vinyl acetate copolymer contained above with 0.5 equivalent or more of a long-chain alkyl compound having 6 to 30 carbon atoms and an acid-modified polyolefin copolymer Release agent emulsion solids 0.
A water-dispersed release agent composition containing 1 to 30 parts by weight is applied to one side of a fibrous base material and dried to form a release layer, and an adhesive layer is provided on the other side of the base material. A method for producing an adhesive tape, comprising:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8002363A JPH09188858A (en) | 1996-01-10 | 1996-01-10 | Production of self-adhesive tape |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8002363A JPH09188858A (en) | 1996-01-10 | 1996-01-10 | Production of self-adhesive tape |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH09188858A true JPH09188858A (en) | 1997-07-22 |
Family
ID=11527183
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8002363A Pending JPH09188858A (en) | 1996-01-10 | 1996-01-10 | Production of self-adhesive tape |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH09188858A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6146756A (en) * | 1998-07-16 | 2000-11-14 | 3M Innovative Properties Company | Hot-melt processable release material, method of preparation, and articles therefrom |
| US10676592B2 (en) * | 2014-09-26 | 2020-06-09 | Ahlstrom-Munksjö Oyj | Cellulose fiber-based substrate, its manufacturing process and use as masking tape |
| US11649382B2 (en) | 2014-09-26 | 2023-05-16 | Ahlstrom Oyj | Biodegradable cellulose fiber-based substrate, its manufacturing process, and use in an adhesive tape |
-
1996
- 1996-01-10 JP JP8002363A patent/JPH09188858A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6146756A (en) * | 1998-07-16 | 2000-11-14 | 3M Innovative Properties Company | Hot-melt processable release material, method of preparation, and articles therefrom |
| US10676592B2 (en) * | 2014-09-26 | 2020-06-09 | Ahlstrom-Munksjö Oyj | Cellulose fiber-based substrate, its manufacturing process and use as masking tape |
| US11649382B2 (en) | 2014-09-26 | 2023-05-16 | Ahlstrom Oyj | Biodegradable cellulose fiber-based substrate, its manufacturing process, and use in an adhesive tape |
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