JPH09157627A - Water-soluble tacky adhesive agent composition - Google Patents
Water-soluble tacky adhesive agent compositionInfo
- Publication number
- JPH09157627A JPH09157627A JP32434995A JP32434995A JPH09157627A JP H09157627 A JPH09157627 A JP H09157627A JP 32434995 A JP32434995 A JP 32434995A JP 32434995 A JP32434995 A JP 32434995A JP H09157627 A JPH09157627 A JP H09157627A
- Authority
- JP
- Japan
- Prior art keywords
- water
- soluble
- sensitive adhesive
- adhesive
- weight
- 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 32
- 239000000203 mixture Substances 0.000 title claims abstract description 21
- 239000004372 Polyvinyl alcohol Substances 0.000 claims abstract description 13
- 229920002451 polyvinyl alcohol Polymers 0.000 claims abstract description 13
- 229920002873 Polyethylenimine Polymers 0.000 claims abstract description 7
- 239000004014 plasticizer Substances 0.000 claims abstract description 7
- 238000007127 saponification reaction Methods 0.000 claims abstract description 6
- 239000004721 Polyphenylene oxide Substances 0.000 claims abstract description 5
- 229920000570 polyether Polymers 0.000 claims abstract description 5
- 229920005862 polyol Polymers 0.000 claims abstract description 5
- 150000003077 polyols Chemical class 0.000 claims abstract description 5
- 230000001070 adhesive effect Effects 0.000 claims description 30
- 235000000346 sugar Nutrition 0.000 claims description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 15
- 150000001720 carbohydrates Chemical class 0.000 abstract 1
- 238000002156 mixing Methods 0.000 abstract 1
- 239000004820 Pressure-sensitive adhesive Substances 0.000 description 29
- 239000000123 paper Substances 0.000 description 11
- 239000002390 adhesive tape Substances 0.000 description 6
- 239000011111 cardboard Substances 0.000 description 5
- 230000007423 decrease Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 238000000576 coating method Methods 0.000 description 4
- FBPFZTCFMRRESA-FSIIMWSLSA-N D-Glucitol Natural products OC[C@H](O)[C@H](O)[C@@H](O)[C@H](O)CO FBPFZTCFMRRESA-FSIIMWSLSA-N 0.000 description 3
- FBPFZTCFMRRESA-JGWLITMVSA-N D-glucitol Chemical compound OC[C@H](O)[C@@H](O)[C@H](O)[C@H](O)CO FBPFZTCFMRRESA-JGWLITMVSA-N 0.000 description 3
- 239000002585 base Substances 0.000 description 3
- 239000011248 coating agent Substances 0.000 description 3
- 238000011156 evaluation Methods 0.000 description 3
- 239000002655 kraft paper Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000004806 packaging method and process Methods 0.000 description 3
- 239000011087 paperboard Substances 0.000 description 3
- 239000002904 solvent Substances 0.000 description 3
- 239000000600 sorbitol Substances 0.000 description 3
- 229920003179 starch-based polymer Polymers 0.000 description 3
- 239000004628 starch-based polymer Substances 0.000 description 3
- NOWKCMXCCJGMRR-UHFFFAOYSA-N Aziridine Chemical compound C1CN1 NOWKCMXCCJGMRR-UHFFFAOYSA-N 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- GSEJCLTVZPLZKY-UHFFFAOYSA-N Triethanolamine Chemical compound OCCN(CCO)CCO GSEJCLTVZPLZKY-UHFFFAOYSA-N 0.000 description 2
- 239000007864 aqueous solution Substances 0.000 description 2
- 238000004090 dissolution Methods 0.000 description 2
- 238000006116 polymerization reaction Methods 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- 150000008163 sugars Chemical class 0.000 description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- 239000002202 Polyethylene glycol Substances 0.000 description 1
- 229920002472 Starch Polymers 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- 239000012790 adhesive layer Substances 0.000 description 1
- 150000001447 alkali salts Chemical class 0.000 description 1
- 125000005250 alkyl acrylate group Chemical group 0.000 description 1
- 239000003963 antioxidant agent Substances 0.000 description 1
- 230000003078 antioxidant effect Effects 0.000 description 1
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 238000013329 compounding Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000012024 dehydrating agents Substances 0.000 description 1
- 239000008367 deionised water Substances 0.000 description 1
- 229910021641 deionized water Inorganic materials 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 229920001519 homopolymer Polymers 0.000 description 1
- 238000007757 hot melt coating Methods 0.000 description 1
- 239000012943 hotmelt Substances 0.000 description 1
- 239000003112 inhibitor Substances 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 239000000845 maltitol Substances 0.000 description 1
- VQHSOMBJVWLPSR-WUJBLJFYSA-N maltitol Chemical compound OC[C@H](O)[C@@H](O)[C@@H]([C@H](O)CO)O[C@H]1O[C@H](CO)[C@@H](O)[C@H](O)[C@H]1O VQHSOMBJVWLPSR-WUJBLJFYSA-N 0.000 description 1
- 229940035436 maltitol Drugs 0.000 description 1
- 235000010449 maltitol Nutrition 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 230000003020 moisturizing effect Effects 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 229920001223 polyethylene glycol Polymers 0.000 description 1
- 230000003449 preventive effect Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- -1 sorbitol Chemical class 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 235000019698 starch Nutrition 0.000 description 1
- 239000008107 starch Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 150000005846 sugar alcohols Polymers 0.000 description 1
- 230000008961 swelling Effects 0.000 description 1
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 1
- 229920002554 vinyl polymer Polymers 0.000 description 1
Landscapes
- Compositions Of Macromolecular Compounds (AREA)
- Adhesives Or Adhesive Processes (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は水溶性粘着剤組成物
に関するもので、特に、被着体である紙、ダンボールの
回収性を向上させることを目的とする。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a water-soluble pressure-sensitive adhesive composition, and it is an object of the present invention to improve the recoverability of paper and cardboard as adherends.
【０００２】[0002]
【従来の技術】使用済みの紙、ダンボールを回収する場
合、包装テープ類が貼り付けられたままの状態で、その
まま裁断して、水に分散させ、繊維をほぐして、パルプ
化し、再度、ダンボールなどに加工される。紙、ダンボ
ールの包装に使用する粘着テープは、ゴム系やアクリル
系の粘着剤が使用され、実用上十分な粘着強度を持って
いるが、紙製品の再生工程で、粘着剤が水に溶解しない
為、テープと共に異物となり、配管を詰まらせたり、回
収紙製品に汚れを作ったりする問題があった。2. Description of the Related Art When recovering used paper and cardboard, the packaging tapes are still cut and cut as they are, dispersed in water, fibers are loosened, pulped, and then cardboard is re-used. It is processed into. Adhesive tapes used for paper and cardboard packaging use rubber-based or acrylic-based adhesives that have practically sufficient adhesive strength, but the adhesives do not dissolve in water during the paper product recycling process. Therefore, there is a problem that the tape becomes a foreign substance, clogging the pipes, and making the collected paper products dirty.
【０００３】かかる問題を解決する為には、適度に水に
溶解する粘着剤が要求される。例えば、特公昭５０─３
４５７８号公報には、アルキルアクリレートとカルボキ
シル基を有するビニルモノマーとの共重合体をアルカリ
塩にして、親水性となし、これにポリエーテルポリオー
ル、多価アルコール、ポリエポキシドなどの水溶性可塑
剤が配合されている水溶性粘着剤が開示されている。
又、特公昭５２─３２７６８号公報は、ポリエチレンイ
ミンと澱粉系高分子化合物とからなる水溶性粘着剤が提
案されている。In order to solve such a problem, a pressure sensitive adhesive which is appropriately dissolved in water is required. For example, Japanese Patent Publication Sho-50-3
No. 4578 discloses that a copolymer of an alkyl acrylate and a vinyl monomer having a carboxyl group is made into an alkali salt to make it hydrophilic, and a water-soluble plasticizer such as a polyether polyol, a polyhydric alcohol, or a polyepoxide is added thereto. There are disclosed water-soluble adhesives.
In addition, Japanese Patent Publication No. 52-32768 proposes a water-soluble pressure-sensitive adhesive comprising polyethyleneimine and a starch-based polymer compound.
【０００４】[0004]
【発明が解決しようとする課題】しかしながら、特公昭
５０─３４５７８号公報に開示された水溶性粘着剤は、
クラフトテープに使用すると、該水溶性粘着剤に配合さ
れた水溶性可塑剤が、時間の経過と共に、徐々に紙基材
に移行して、粘着剤の配合組成を変化させる為、最初に
設計した粘着物性が維持できなくなり、実際の粘着力が
低下してしまう欠陥があった。However, the water-soluble pressure-sensitive adhesive disclosed in Japanese Examined Patent Publication No. 50-34578 has the following problems.
When used for kraft tape, the water-soluble plasticizer compounded in the water-soluble pressure-sensitive adhesive gradually migrates to the paper base material with the passage of time and changes the compounding composition of the pressure-sensitive adhesive. There was a defect that the adhesive property could not be maintained and the actual adhesive strength was reduced.
【０００５】又、特公昭５２─３２７６８号公報に開示
された水溶性粘着剤は、経時の粘着力の安定性は良い
が、強固な凝集力のある成分を持たない為に、澱粉系高
分子の比率が少ないと、粘着力とタックとのバランスが
取り難く、澱粉系高分子の比率が多いと、粘着力とタッ
クが共に低下して、テープを被着体に貼り付けても、直
ぐに外れる。さらに、冬場のような湿度が低い条件で
は、粘着剤の含水率が自然に低下して、粘着力が低下す
る問題点があった。Further, the water-soluble pressure-sensitive adhesive disclosed in Japanese Patent Publication No. 52-32768 has good stability of the pressure-sensitive adhesive strength over time, but since it does not have a strong cohesive component, it is a starch-based polymer. If the ratio is low, it is difficult to balance the adhesive force and tack, and if the ratio of starch-based polymer is high, both the adhesive force and tack decrease, and even if the tape is attached to the adherend, it quickly comes off. . Furthermore, under low humidity conditions such as in winter, the water content of the pressure-sensitive adhesive naturally lowers, resulting in a decrease in the adhesive strength.
【０００６】本発明は、上記の如き従来の問題点を解消
し、テープの粘着力が湿度条件に影響を受けることなく
良好で、経時の安定性が良く、且つ、紙の回収・再生工
程に於いて、粘着剤が凝集せず、完全に水に溶解する水
溶性粘着剤組成物を提供することを目的としてなされた
ものである。The present invention solves the above-mentioned conventional problems, the adhesive strength of the tape is good without being affected by humidity conditions, the stability with time is good, and the paper recovery / recycle process is performed. The purpose of the present invention is to provide a water-soluble pressure-sensitive adhesive composition in which the pressure-sensitive adhesive does not aggregate and is completely soluble in water.
【０００７】[0007]
【課題を解決するための手段】本発明の水溶性粘着剤組
成物は、（ａ）鹸化度が７０〜１００％のポリビニルア
ルコール１００重量部に対し、（ｂ）糖、アルカノール
アミン、ポリエーテルポリオールからなる群より選ばれ
る少なくとも１種の水溶性可塑剤１０〜１６０重量部
と、（ｃ）ポリエチレンイミン１００〜５００重量部と
が配合されてなるものである。The water-soluble pressure-sensitive adhesive composition of the present invention comprises (a) 100 parts by weight of polyvinyl alcohol having a saponification degree of 70 to 100%, and (b) sugar, alkanolamine, and polyether polyol. 10 to 160 parts by weight of at least one water-soluble plasticizer selected from the group consisting of and 100 to 500 parts by weight of (c) polyethyleneimine are blended.
【０００８】本発明に使用されるポリビニルアルコール
（ａ）は、水溶性粘着剤に適切な塗膜形成能力を持たせ
て、凝集力を与える役目をし、完全鹸化物、部分鹸化物
いずれでも良いが、水に対する適切な溶解性を得るため
に、鹸化度が７０〜１００％の範囲のものが好ましい。
鹸化度が７０％以下では水に対する溶解性が不足する。The polyvinyl alcohol (a) used in the present invention has a function of giving a water-soluble pressure-sensitive adhesive an appropriate coating film forming ability to give a cohesive force, and may be a completely saponified product or a partially saponified product. However, the saponification degree is preferably in the range of 70 to 100% in order to obtain appropriate solubility in water.
If the degree of saponification is 70% or less, the solubility in water will be insufficient.
【０００９】ポリビニルアルコールの重合度が低くなる
と、水溶性粘着剤組成物の凝集力が低下し、充分な保持
力が得られない。ポリビニルアルコールの重合度は、パ
ラメーターとして、ポリビニルアルコールの４重量％水
溶液の２０℃に於ける粘度が利用され、好ましくは５万
ｃｐｓ以上、さらに、好ましくは２０万ｃｐｓ以上であ
る。When the degree of polymerization of polyvinyl alcohol is low, the cohesive force of the water-soluble pressure-sensitive adhesive composition is low and sufficient holding power cannot be obtained. As the degree of polymerization of polyvinyl alcohol, the viscosity of a 4 wt% aqueous solution of polyvinyl alcohol at 20 ° C. is used as a parameter, and it is preferably 50,000 cps or more, more preferably 200,000 cps or more.
【００１０】水溶性可塑剤（ｂ）は水溶性粘着剤の可塑
性と粘着力とを調整する為に配合する。添加量はポリビ
ニルアルコール１００重量部に対し、１０〜１６０重量
部であり、好ましくは、２０〜１００重量部である。添
加量が１０重量部より少ないと、ポリビニルアルコール
が可塑化されずに、水溶性粘着剤の粘着力が低くなる。
添加量が１６０重量部を越えると、水溶性粘着剤の凝集
力が低下して、テープの保持力が悪くなる。The water-soluble plasticizer (b) is added in order to adjust the plasticity and adhesive strength of the water-soluble adhesive. The addition amount is 10 to 160 parts by weight, preferably 20 to 100 parts by weight, based on 100 parts by weight of polyvinyl alcohol. If the addition amount is less than 10 parts by weight, the polyvinyl alcohol is not plasticized and the adhesive strength of the water-soluble adhesive becomes low.
If the amount added exceeds 160 parts by weight, the cohesive force of the water-soluble pressure-sensitive adhesive decreases, and the holding power of the tape deteriorates.
【００１１】具体的な水溶性可塑剤としては、例えば、
ソルビトール、マルチトールなどの糖、トリエタノール
アミン、トリプロパノールアミンなどのアルカノールア
ミン、ポリエチレングリコールなどのポリエーテルポリ
オールが挙げられ、これらの群から選ばれる少なくとも
１種が使用され、これは単独で使用されても良いし、こ
れらが併用されても良い。低湿度条件での、粘着力を確
保するには、糖類、特に、ソルビトールが保湿効果が優
れている点で好ましいが、これに限定されるものではな
い。Specific water-soluble plasticizers include, for example,
Examples include sugars such as sorbitol and maltitol, alkanolamines such as triethanolamine and tripropanolamine, and polyether polyols such as polyethylene glycol. At least one selected from these groups is used, and it is used alone. Or, these may be used together. In order to secure the adhesive strength under low humidity conditions, sugars, particularly sorbitol, are preferable because of their excellent moisturizing effect, but the invention is not limited thereto.
【００１２】ポリエチレンイミン（ｃ）はエチレンイミ
ンのホモポリマーを意味し、ポリビニルアルコールと良
好に相溶して、水溶性粘着剤に強固な粘着力を付与す
る。分子量は１０００〜２０万の範囲が適当で、好まし
くは、５〜１０万が良い。分子量が１０００より小さい
と、水溶性粘着剤の凝集力が低下し、２０万を越える
と、水溶性粘着剤の粘着性が低下する。添加量はポリビ
ニルアルコール１００重量部に対し、１００〜５００重
量部であり、好ましくは、２００〜３５０重量部であ
る。添加量が１００重量部未満では、ポリエチレンイミ
ンが本来、有している初期粘着性が発揮されずに、粘着
力が低くなる。又、５００重量部を越えると、水溶性粘
着剤の凝集力が低下して、テープの保持力が悪くなる。Polyethyleneimine (c) means a homopolymer of ethyleneimine, which is well compatible with polyvinyl alcohol and imparts a strong adhesive force to a water-soluble adhesive. The molecular weight is appropriately in the range of 1,000 to 200,000, preferably 50,000 to 100,000. When the molecular weight is less than 1000, the cohesive force of the water-soluble pressure-sensitive adhesive decreases, and when it exceeds 200,000, the tackiness of the water-soluble pressure-sensitive adhesive decreases. The addition amount is 100 to 500 parts by weight, preferably 200 to 350 parts by weight, based on 100 parts by weight of polyvinyl alcohol. If the amount added is less than 100 parts by weight, the initial adhesiveness inherent to polyethyleneimine will not be exhibited and the adhesive strength will be reduced. On the other hand, if it exceeds 500 parts by weight, the cohesive force of the water-soluble pressure-sensitive adhesive is lowered and the holding power of the tape is deteriorated.
【００１３】本発明の水溶性粘着剤組成物の必須構成成
分は上記（ａ）、（ｂ）、（ｃ）からなるが、他の成分
として、必要に応じて、防錆剤、酸化防止剤、紫外線防
止剤、脱水剤などが配合されても構わない。The essential constituents of the water-soluble pressure-sensitive adhesive composition of the present invention are the above-mentioned (a), (b) and (c), but other components may be added as necessary, such as a rust preventive and an antioxidant. A UV inhibitor, a dehydrating agent, etc. may be added.
【００１４】本発明の水溶性粘着剤組成物は水、アルコ
ール、これらの混合物に溶解でき、これを溶剤として使
用できる。溶剤の使用量は、水溶性粘着剤組成物の各成
分が均一に溶解できるに足りる量であり、塗布工程の作
業性を考慮して、その濃度を適宜、定めることができ
る。更に、本発明の水溶性粘着剤組成物は、固形分のみ
で、無溶剤タイプのホットメルト粘着剤としても使用で
きる。The water-soluble pressure-sensitive adhesive composition of the present invention can be dissolved in water, alcohol or a mixture thereof, and this can be used as a solvent. The amount of the solvent used is an amount sufficient to uniformly dissolve each component of the water-soluble pressure-sensitive adhesive composition, and the concentration thereof can be appropriately determined in consideration of workability in the coating step. Furthermore, the water-soluble pressure-sensitive adhesive composition of the present invention can be used as a solventless hot-melt pressure-sensitive adhesive having only a solid content.
【００１５】本発明に使用されるテープ基材としては、
例えば、クラフト紙、上質紙、和紙などの紙基材が挙げ
られる。The tape base material used in the present invention includes:
For example, paper base materials such as kraft paper, high-quality paper, and Japanese paper can be mentioned.
【００１６】塗工方法としては、各種のロールコータ
ー、ナイフコーターなどによる基材への直接塗工のほか
に、離型処理した樹脂フィルム又は離型紙に塗工後、乾
燥させて粘着剤層を形成させた後、テープ基材に圧着・
転写する方法や溶剤を含まない水溶性粘着剤組成物を加
熱・溶融して、ホットメルト塗工する方法などが挙げら
れる。As a coating method, in addition to direct coating on a substrate with various roll coaters, knife coaters, etc., a resin film or release paper subjected to release treatment is coated and then dried to form an adhesive layer. After forming it, press it on the tape substrate.
Examples thereof include a method of transferring and a method of hot-melt coating by heating and melting a water-soluble pressure-sensitive adhesive composition containing no solvent.
【００１７】[0017]
【発明の実施の形態】以下に実施例を掲げて、本発明を
更に詳しく説明するが、本発明はこれら実施例のみに限
定されるものではない。BEST MODE FOR CARRYING OUT THE INVENTION The present invention will be described in more detail with reference to examples below, but the present invention is not limited to these examples.
【００１８】実施例１〜３、比較例１〜５ 水溶性粘着剤組成物（水溶性粘着剤Ａ）の作製 表１の配合表に従って、下記の如き原料をイオン交換水
５００重量部と共に配合し、充分に攪拌して、水溶性粘
着剤組成物を作製した。尚、表１におけるポリビニルア
ルコールとしては、クラレ（株）社製の商品名「ＰＶＡ
−２１７」で、鹸化度が８８ｍｏｌ％、２０℃に於ける
濃度４重量％水溶液の粘度が２２．５万ｃｐｓのものを
使用し、ヒドロキシプロピル化スターチとしては、松谷
化学（株）社製の商品名「ソルビトーゼ６５０」を使用
し、ソルビトールとしては、東和化成工業（株）社製の
商品名「ソルビットＬ−７０」を使用し、トリエタノー
ルアミンとしては、日本触媒（株）社製のものを使用
し、ポリエチレンイミンとしては、日本触媒（株）社製
の商品名「エポミンＰ−１０００」を使用した。 Examples 1 to 3 and Comparative Examples 1 to 5 Preparation of Water-Soluble Adhesive Composition (Water-Soluble Adhesive A) According to the formulation table of Table 1, the following raw materials were blended together with 500 parts by weight of deionized water. After sufficiently stirring, a water-soluble pressure-sensitive adhesive composition was prepared. The polyvinyl alcohol in Table 1 is "PVA" manufactured by Kuraray Co., Ltd.
-217 ", the degree of saponification is 88 mol%, and the viscosity of a 4% by weight aqueous solution at 20 ° C. is 225,000 cps. The hydroxypropylated starch manufactured by Matsutani Chemical Co., Ltd. is used. The product name "Sorbitose 650" is used, the product name "Sorbit L-70" manufactured by Towa Kasei Co., Ltd. is used as the sorbitol, and the triethanolamine manufactured by Nippon Shokubai Co., Ltd. As the polyethyleneimine, trade name "Epomin P-1000" manufactured by Nippon Shokubai Co., Ltd. was used.
【００１９】粘着テープの作製 水溶性粘着剤組成物Ａの溶液を、樹脂を片面にコートし
たクラフト紙（坪量４５ｇ／ｍ2 ）のコート面の反対側
に塗工し、１１０℃のオーブン中で、７分間、乾燥する
ことにより、水溶性粘着剤の厚さが３０μｍの粘着テー
プを得た。Preparation of Adhesive Tape A solution of the water-soluble adhesive composition A was applied to the opposite side of the coated surface of kraft paper (basis weight: 45 g / m 2 ) coated with resin on one side, and placed in an oven at 110 ° C. Then, by drying for 7 minutes, an adhesive tape having a water-soluble adhesive having a thickness of 30 μm was obtained.
【００２０】評価項目及び評価法を以下に示す。 （粘着力）幅１８ｍｍにカットした上記粘着テープを、
耐水研磨紙＃２８０で磨いたステンレス板に貼付し、２
０分間放置したのち、粘着力を１８０度角の剥離で、評
価した。結果は表１に示す。尚、粘着力の評価は湿度の
及ぼす効果を見るため、温度２３℃に於いて、３０％Ｒ
Ｈと６０％ＲＨとの両者の条件で測定した。The evaluation items and evaluation methods are shown below. (Adhesive strength) The adhesive tape cut into a width of 18 mm is
Attach it to a stainless steel plate polished with water resistant abrasive paper # 280 and
After leaving for 0 minutes, the adhesive strength was evaluated by peeling at a 180 degree angle. The results are shown in Table 1. In addition, in order to evaluate the effect of humidity in the evaluation of adhesive strength, at a temperature of 23 ° C, 30% R
It was measured under both conditions of H and 60% RH.
【００２１】（ボールタック；Ｊ．Ｄｏｗ法）温度２３
℃、湿度６０％ＲＨの環境に於いて、傾斜角３０度の斜
面に、粘着テープを粘着剤面を上にして置き、１００ｍ
ｍの助走路から、直径が（２／３２）〜１インチの各種
鋼球を転がし、試料の粘着剤面上で、長さ１００ｍｍの
所で停止する鋼球の最大直径で、タック値を表す。結果
は表１に示す。 タック値＝止まったボールの直径（インチ）×３２(Ball tack; J. Dow method) Temperature 23
In an environment of ℃ and humidity of 60% RH, place an adhesive tape on the slope with an inclination angle of 30 degrees, 100m
Various steel balls having a diameter of (2/32) to 1 inch are rolled from the m runway, and the tack value is represented by the maximum diameter of the steel ball that stops at a length of 100 mm on the adhesive surface of the sample. . The results are shown in Table 1. Tack value = stopped ball diameter (inch) x 32
【００２２】（粘着剤の水による溶解性試験）トイレッ
トペーパーに粘着テープを貼り付けて、水の入ったガラ
ス瓶に入れ、振盪機で一昼夜攪拌する。粘着剤の溶解の
程度を目視で、溶解、膨潤、不溶の３段階で、評価す
る。結果は表１に示す。(Solubility Test of Adhesive with Water) An adhesive tape is attached to toilet paper, put in a glass bottle containing water, and stirred overnight with a shaker. The degree of dissolution of the pressure-sensitive adhesive is visually evaluated in three stages of dissolution, swelling, and insolubility. The results are shown in Table 1.
【００２３】[0023]
【表１】 [Table 1]
【００２４】[0024]
【発明の効果】本発明の水溶性粘着剤組成物は上述の通
りであるので、得られる水溶性粘着剤組成物は経時安定
性が良く、湿度条件に関係なく良好な粘着力を示し、且
つ、粘着剤の水溶性が優れている。その為、紙、ダンボ
ールなどの包装・梱包に用いた場合、使用後の粘着剤が
水に良好に溶解し、被着体のリサイクルに好適に機能す
る。Since the water-soluble pressure-sensitive adhesive composition of the present invention is as described above, the resulting water-soluble pressure-sensitive adhesive composition has good stability over time and exhibits good pressure-sensitive adhesive force regardless of humidity conditions, and , The water solubility of the adhesive is excellent. Therefore, when used for packaging and packing paper, cardboard, etc., the adhesive after use dissolves well in water, and functions favorably for recycling adherends.
Claims (1)
ルアルコール１００重量部に対し、（ｂ）糖、アルカノ
ールアミン、ポリエーテルポリオールからなる群より選
ばれる少なくとも１種の水溶性可塑剤１０〜１６０重量
部と、（ｃ）ポリエチレンイミン１００〜５００重量部
とが配合されてなる水溶性粘着剤組成物。1. At least one water-soluble plasticizer 10 selected from the group consisting of (b) sugar, alkanolamine, and polyether polyol with respect to (a) 100 parts by weight of polyvinyl alcohol having a saponification degree of 70 to 100%. ˜160 parts by weight and (c) 100 to 500 parts by weight of polyethyleneimine are blended in the water-soluble adhesive composition.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP32434995A JPH09157627A (en) | 1995-12-13 | 1995-12-13 | Water-soluble tacky adhesive agent composition |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP32434995A JPH09157627A (en) | 1995-12-13 | 1995-12-13 | Water-soluble tacky adhesive agent composition |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH09157627A true JPH09157627A (en) | 1997-06-17 |
Family
ID=18164794
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP32434995A Pending JPH09157627A (en) | 1995-12-13 | 1995-12-13 | Water-soluble tacky adhesive agent composition |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH09157627A (en) |
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