JPH01215879A - Pressure-sensitive adhesive composition - Google Patents
Pressure-sensitive adhesive compositionInfo
- Publication number
- JPH01215879A JPH01215879A JP3951388A JP3951388A JPH01215879A JP H01215879 A JPH01215879 A JP H01215879A JP 3951388 A JP3951388 A JP 3951388A JP 3951388 A JP3951388 A JP 3951388A JP H01215879 A JPH01215879 A JP H01215879A
- Authority
- JP
- Japan
- Prior art keywords
- adhesive
- pressure
- component
- polymer
- sensitive 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
- 239000000203 mixture Substances 0.000 title claims abstract description 36
- 239000004820 Pressure-sensitive adhesive Substances 0.000 title claims description 33
- 229920000642 polymer Polymers 0.000 claims abstract description 28
- 239000004005 microsphere Substances 0.000 claims abstract description 23
- 239000007787 solid Substances 0.000 claims abstract description 19
- 239000000853 adhesive Substances 0.000 abstract description 39
- 239000000178 monomer Substances 0.000 abstract description 9
- 239000002998 adhesive polymer Substances 0.000 abstract description 6
- 238000005520 cutting process Methods 0.000 abstract description 6
- 239000002245 particle Substances 0.000 abstract description 6
- 239000000126 substance Substances 0.000 abstract description 5
- 239000002904 solvent Substances 0.000 abstract description 4
- 239000003795 chemical substances by application Substances 0.000 abstract description 3
- 230000009477 glass transition Effects 0.000 abstract description 3
- 238000002156 mixing Methods 0.000 abstract description 3
- 229920000620 organic polymer Polymers 0.000 abstract description 3
- 239000002518 antifoaming agent Substances 0.000 abstract description 2
- 239000000725 suspension Substances 0.000 abstract description 2
- 230000002421 anti-septic effect Effects 0.000 abstract 1
- 239000002775 capsule Substances 0.000 abstract 1
- 230000001070 adhesive effect Effects 0.000 description 37
- 239000000839 emulsion Substances 0.000 description 13
- 230000000052 comparative effect Effects 0.000 description 8
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 6
- 244000043261 Hevea brasiliensis Species 0.000 description 6
- 229920003052 natural elastomer Polymers 0.000 description 6
- 229920001194 natural rubber Polymers 0.000 description 6
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 5
- 229920001577 copolymer Polymers 0.000 description 5
- 238000001035 drying Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000000704 physical effect Effects 0.000 description 4
- 150000003097 polyterpenes Chemical class 0.000 description 4
- 229920005989 resin Polymers 0.000 description 4
- 239000011347 resin Substances 0.000 description 4
- KAKZBPTYRLMSJV-UHFFFAOYSA-N Butadiene Chemical compound C=CC=C KAKZBPTYRLMSJV-UHFFFAOYSA-N 0.000 description 3
- 239000004698 Polyethylene Substances 0.000 description 3
- 238000005299 abrasion Methods 0.000 description 3
- 229920006267 polyester film Polymers 0.000 description 3
- -1 polyethylene Polymers 0.000 description 3
- 229920000573 polyethylene Polymers 0.000 description 3
- MYRTYDVEIRVNKP-UHFFFAOYSA-N 1,2-Divinylbenzene Chemical compound C=CC1=CC=CC=C1C=C MYRTYDVEIRVNKP-UHFFFAOYSA-N 0.000 description 2
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- VZCYOOQTPOCHFL-OWOJBTEDSA-N Fumaric acid Chemical compound OC(=O)\C=C\C(O)=O VZCYOOQTPOCHFL-OWOJBTEDSA-N 0.000 description 2
- RRHGJUQNOFWUDK-UHFFFAOYSA-N Isoprene Chemical compound CC(=C)C=C RRHGJUQNOFWUDK-UHFFFAOYSA-N 0.000 description 2
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 2
- BZHJMEDXRYGGRV-UHFFFAOYSA-N Vinyl chloride Chemical compound ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 description 2
- 239000002390 adhesive tape Substances 0.000 description 2
- 235000011114 ammonium hydroxide Nutrition 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 239000000049 pigment Substances 0.000 description 2
- 229920000915 polyvinyl chloride Polymers 0.000 description 2
- 239000004800 polyvinyl chloride Substances 0.000 description 2
- 239000002562 thickening agent Substances 0.000 description 2
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 2
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 2
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 description 1
- JAHNSTQSQJOJLO-UHFFFAOYSA-N 2-(3-fluorophenyl)-1h-imidazole Chemical compound FC1=CC=CC(C=2NC=CN=2)=C1 JAHNSTQSQJOJLO-UHFFFAOYSA-N 0.000 description 1
- KGIGUEBEKRSTEW-UHFFFAOYSA-N 2-vinylpyridine Chemical compound C=CC1=CC=CC=N1 KGIGUEBEKRSTEW-UHFFFAOYSA-N 0.000 description 1
- DBCAQXHNJOFNGC-UHFFFAOYSA-N 4-bromo-1,1,1-trifluorobutane Chemical compound FC(F)(F)CCCBr DBCAQXHNJOFNGC-UHFFFAOYSA-N 0.000 description 1
- HRPVXLWXLXDGHG-UHFFFAOYSA-N Acrylamide Chemical compound NC(=O)C=C HRPVXLWXLXDGHG-UHFFFAOYSA-N 0.000 description 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 1
- 229920000459 Nitrile rubber Polymers 0.000 description 1
- OKKRPWIIYQTPQF-UHFFFAOYSA-N Trimethylolpropane trimethacrylate Chemical compound CC(=C)C(=O)OCC(CC)(COC(=O)C(C)=C)COC(=O)C(C)=C OKKRPWIIYQTPQF-UHFFFAOYSA-N 0.000 description 1
- XTXRWKRVRITETP-UHFFFAOYSA-N Vinyl acetate Chemical compound CC(=O)OC=C XTXRWKRVRITETP-UHFFFAOYSA-N 0.000 description 1
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 150000001252 acrylic acid derivatives Chemical class 0.000 description 1
- 125000005396 acrylic acid ester group Chemical group 0.000 description 1
- 239000003522 acrylic cement Substances 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 239000012790 adhesive layer Substances 0.000 description 1
- 125000005907 alkyl ester group Chemical group 0.000 description 1
- 125000000217 alkyl group Chemical group 0.000 description 1
- QGZKDVFQNNGYKY-UHFFFAOYSA-N ammonia Natural products N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 1
- 239000012736 aqueous medium Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000004132 cross linking Methods 0.000 description 1
- 150000001993 dienes Chemical class 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- UIWXSTHGICQLQT-UHFFFAOYSA-N ethenyl propanoate Chemical compound CCC(=O)OC=C UIWXSTHGICQLQT-UHFFFAOYSA-N 0.000 description 1
- STVZJERGLQHEKB-UHFFFAOYSA-N ethylene glycol dimethacrylate Substances CC(=C)C(=O)OCCOC(=O)C(C)=C STVZJERGLQHEKB-UHFFFAOYSA-N 0.000 description 1
- 239000001530 fumaric acid Substances 0.000 description 1
- 229920001519 homopolymer Polymers 0.000 description 1
- 239000001023 inorganic pigment Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- LVHBHZANLOWSRM-UHFFFAOYSA-N methylenebutanedioic acid Natural products OC(=O)CC(=C)C(O)=O LVHBHZANLOWSRM-UHFFFAOYSA-N 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 229920006113 non-polar polymer Polymers 0.000 description 1
- 239000012875 nonionic emulsifier Substances 0.000 description 1
- SOQBVABWOPYFQZ-UHFFFAOYSA-N oxygen(2-);titanium(4+) Chemical compound [O-2].[O-2].[Ti+4] SOQBVABWOPYFQZ-UHFFFAOYSA-N 0.000 description 1
- ULLDRQCJTSHDDT-UHFFFAOYSA-N penta-2,3,4-trienenitrile Chemical compound C=C=C=CC#N ULLDRQCJTSHDDT-UHFFFAOYSA-N 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 229920001084 poly(chloroprene) Polymers 0.000 description 1
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 229920002689 polyvinyl acetate Polymers 0.000 description 1
- 239000011118 polyvinyl acetate Substances 0.000 description 1
- 239000003755 preservative agent Substances 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
- VZCYOOQTPOCHFL-UHFFFAOYSA-N trans-butenedioic acid Natural products OC(=O)C=CC(O)=O VZCYOOQTPOCHFL-UHFFFAOYSA-N 0.000 description 1
- 229920001567 vinyl ester resin Polymers 0.000 description 1
- 229920002554 vinyl polymer Polymers 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 235000014692 zinc oxide Nutrition 0.000 description 1
- 239000011787 zinc oxide Substances 0.000 description 1
Landscapes
- Adhesives Or Adhesive Processes (AREA)
Abstract
Description
【発明の詳細な説明】
（イ）発明の目的
〔産業上の利用分野〕
本発明は、紙ラベル、粘着テープおよび表面保護フィル
ム等に使用される感圧性接着剤組成物に関するものであ
る。Detailed Description of the Invention (a) Object of the Invention [Field of Industrial Application] The present invention relates to a pressure-sensitive adhesive composition used for paper labels, adhesive tapes, surface protection films, and the like.
従来、アクリル酸アルキルエステル等の共重合体等を粘
着性成分とする感圧性接着剤は、−般にポリエチレン等
の非極性ポリマーの被着材に対する粘着力が不十分であ
るという短所が知られていた。Conventionally, pressure-sensitive adhesives containing copolymers such as acrylic acid alkyl esters as adhesive components have been known to have the disadvantage of insufficient adhesion to adherends of non-polar polymers such as polyethylene. was.
一方、隠蔽力の低い紙や合成樹脂フィルムを用い、各種
ラベルを製造する場合、酸化チタンや亜鉛華等の無機顔
料を添加して、接着剤自身に隠蔽力を付与した感圧性接
着剤が用いられるが、かかる感圧性接着剤は、顔料が添
加されていない感圧性接着剤よりさらに粘着力が劣ると
いう問題があるとともにラベル製造のためのダイカット
加工においてダイカットロールの摩耗が激しいという問
題があった。On the other hand, when manufacturing various labels using paper or synthetic resin films with low hiding power, pressure-sensitive adhesives that have added inorganic pigments such as titanium oxide or zinc white to give the adhesive itself hiding power are used. However, such pressure-sensitive adhesives have a problem in that their adhesive strength is even worse than pressure-sensitive adhesives to which pigments are not added, and there is also a problem in that the die-cut roll is severely worn during the die-cutting process for manufacturing labels. .
本発明は、強力な粘着力を有する感圧性接着剤組成物で
あって、かつ大きな隠蔽力を有しながら、ダイカット加
工においてダイカットロールの摩耗の少ない感圧性接着
剤組成物を提供するものである。The present invention provides a pressure-sensitive adhesive composition that has strong adhesive strength, has a large hiding power, and causes less wear on die-cut rolls during die-cut processing. .
（ロ）発明の構成
〔課題を解決するための手段〕
本発明者らは、大きな隠蔽力を有し、しかもそれを用い
た粘着シート等のラベル製造のためのダイカット加工に
おいてダイカットロールの摩耗の極力少ない感圧性接着
剤を得るために鋭意検討した結果、粘着性重合体ととも
に全固形分を基準にして高分子中空微細球を２〜３５重
量％含有する感圧性接着剤組成物が十分な隠蔽力を有し
、しかもダイカットにおいてダイカットロールの摩耗が
極めて少ないことを見出すとともに、驚（べきことにそ
の粘着力が顔料を含まない粘着性重合体からなる従来の
感圧性接着剤より強いことを見出し、本発明を完成する
に至った。(B) Structure of the Invention [Means for Solving the Problems] The present inventors have discovered that the present inventors have a large hiding power and that there is no abrasion of die-cut rolls in die-cut processing for manufacturing labels such as adhesive sheets using the same. As a result of intensive studies to obtain as little pressure-sensitive adhesive as possible, we found that a pressure-sensitive adhesive composition containing 2 to 35% by weight of polymeric hollow microspheres based on the total solid content together with an adhesive polymer had sufficient concealment. In addition to discovering that the die-cutting roll has extremely low wear during die-cutting, the adhesive strength is surprisingly stronger than that of conventional pressure-sensitive adhesives made of adhesive polymers that do not contain pigments. , we have completed the present invention.
すなわち、本発明は、全固形分を基準にして、高分子中
空微細球を２〜３５重量％含有することを特徴とする感
圧性接着剤組成物である。That is, the present invention is a pressure-sensitive adhesive composition characterized by containing 2 to 35% by weight of polymer hollow microspheres based on the total solid content.
以下、本発明について更に詳しく説明する。The present invention will be explained in more detail below.
本発明の感圧性接着剤組成物の主体は粘着性成分であり
、かかる粘着性成分としては一般的な感圧性接着剤にお
いて使用されている粘着性重合体のいずれを用いても良
く、例えば（メタ）アクリル酸エステル系重合体、エチ
レン−酢酸ビニル共重合体、ポリ酢酸ビニル、塩化ビニ
ル重合体、８ＢＲ，ＮＢＲ、ポリクロロプレンおよび天
然ゴム等が挙げられ、中でもガラス転移温度が２０℃以
下の重合体がより好適である。The main component of the pressure-sensitive adhesive composition of the present invention is an adhesive component, and the adhesive component may be any adhesive polymer used in general pressure-sensitive adhesives, such as ( Examples include meth)acrylic acid ester polymers, ethylene-vinyl acetate copolymers, polyvinyl acetate, vinyl chloride polymers, 8BR, NBR, polychloroprene, and natural rubber, among which polymers with a glass transition temperature of 20°C or lower Combination is more preferred.
ガラス転移温度が２０℃を超えると、十分な粘着力を得
ることが困難となる。かかる重合体は、溶剤系、エマル
ジョン系または無溶剤系のいずれであっても良（溶剤系
重合体を使用する場合には、高分子中空微細球を溶解し
ない溶剤が使われた重合体溶液を使用すると良い。When the glass transition temperature exceeds 20°C, it becomes difficult to obtain sufficient adhesive strength. Such polymers may be solvent-based, emulsion-based, or solvent-free (if a solvent-based polymer is used, a polymer solution containing a solvent that does not dissolve the polymer hollow microspheres) may be used. Good to use.
本発明において使用する高分子中空微細球は、有機高分
子で外殻が形成され、その内部が中空の微細球であり、
外径が０１〜１μｍであって内径が外径の０．２〜０．
９倍である微細球が好ましく、外径が０．１〜０．６μ
ｍであって内径が外径の０６〜０．８倍のものがさらに
好ましい。The polymer hollow microspheres used in the present invention are microspheres whose outer shell is formed of an organic polymer and whose interior is hollow.
The outer diameter is 0.1 to 1 μm and the inner diameter is 0.2 to 0.0 μm of the outer diameter.
Preferably, microspheres are 9 times larger, and have an outer diameter of 0.1 to 0.6μ.
It is more preferable that the inner diameter is 0.6 to 0.8 times the outer diameter.
外径が０．１μｍ未満であると、感圧性接着剤組成物の
隠蔽力がさほど上がらず、１μｍを超えると粘着シート
等を製造した場合に、粘着剤塗工面に凹凸が表われる。If the outer diameter is less than 0.1 μm, the hiding power of the pressure-sensitive adhesive composition will not increase significantly, and if it exceeds 1 μm, unevenness will appear on the adhesive coated surface when producing a pressure-sensitive adhesive sheet or the like.
上記高分子中空微細球としては、例えば商品名オペツク
・ポリマーＯＰ−４２Ｍおよヒ０Ｐ−８４Ｊ（いずれも
ロームアンドハース社製）等の如き市販の高分子中空微
細球を使用でき、それら以外にも例えば親水性モノマー
５〜７０重量部および架橋性モノマー１〜４０重量部を
含むモノマー成分１００重量部と、油性物質１〜１．０
００重量部とが共存する懸濁液を調製し、この懸濁液に
おいて前記モノマー成分を重合させ、前記油性物質を内
部に含むカプセル状のポリマー粒子を製造した後、該ポ
リマー粒子中の□油性物質を除去するという方法（特開
昭６１−８７７３４号公報）によって製造された高分子
中空微細球等も好適に使用できる。As the polymer hollow microspheres, commercially available polymer hollow microspheres such as the trade name OPETSUQ Polymer OP-42M and OP-84J (both manufactured by Rohm and Haas) can be used. For example, 100 parts by weight of a monomer component containing 5 to 70 parts by weight of a hydrophilic monomer and 1 to 40 parts by weight of a crosslinking monomer, and 1 to 1.0 parts by weight of an oily substance.
00 parts by weight is prepared, and the monomer components are polymerized in this suspension to produce capsule-shaped polymer particles containing the oily substance inside. Polymer hollow microspheres produced by a method of removing substances (Japanese Unexamined Patent Publication No. 61-87734) can also be suitably used.
高分子中空微細球の外殻を形成する有機高分子としては
、例えばスチレン、ビニルピリジン等の芳香族ビニル単
量体、酢酸ビニル、プロピオン酸ビニル等のビニルエス
テル類、（メタ）アクリル酸アルキルエステル等のエチ
レン性不飽和力尤ボン酸アルキルエステル類、（メタ）
アクリル酸、イタコン酸、フマル酸等のビニル系カルボ
ン酸、ブタジェン、イソプレン等の共役ジオレフィン類
、ジビニルベンゼン、エチレングリコールジメタクリレ
ート等のジビニル化合物、トリメチロールプロパントリ
メタクリレート等のトリビニル化合物、塩ビ、塩化ビニ
リデン、アクリロニトリル、アクリルアミド等のビニル
化合物等の単量体からなる単独重合体または共重合体が
挙げられる。Examples of organic polymers forming the outer shell of the polymer hollow microspheres include aromatic vinyl monomers such as styrene and vinylpyridine, vinyl esters such as vinyl acetate and vinyl propionate, and alkyl (meth)acrylates. ethylenically unsaturated acid alkyl esters, such as (meth)
Vinyl carboxylic acids such as acrylic acid, itaconic acid, and fumaric acid, conjugated diolefins such as butadiene and isoprene, divinyl compounds such as divinylbenzene and ethylene glycol dimethacrylate, trivinyl compounds such as trimethylolpropane trimethacrylate, vinyl chloride, and chloride. Examples include homopolymers or copolymers made of monomers such as vinyl compounds such as vinylidene, acrylonitrile, and acrylamide.
なお、上記高分子中空微細球は、通常水性媒体中に乳化
分散した状態で得られるが１、本発明においては得られ
た乳液をそのまま使用することができる。The polymer hollow microspheres are usually obtained in a state of being emulsified and dispersed in an aqueous medium (1), but in the present invention, the obtained emulsion can be used as it is.
本発明の感圧性接着剤組成物における高分子中空微細球
の配合割合は、該組成物における全固形分を基準にして
２〜３５重量係であり、好ましくは４〜１５重量％であ
る。配合割合が２重量％未満であると十分な隠蔽力が得
られず、一方３５重量係を超えると粘着力が極端に低下
する。The proportion of the polymer hollow microspheres in the pressure-sensitive adhesive composition of the present invention is 2 to 35% by weight, preferably 4 to 15% by weight, based on the total solid content of the composition. If the blending ratio is less than 2% by weight, sufficient hiding power will not be obtained, while if it exceeds 35% by weight, the adhesive strength will be extremely reduced.
次に、感圧性接着剤組成物の製造方法について説明する
。Next, a method for producing a pressure-sensitive adhesive composition will be explained.
例えば、前記粘着性重合体が固形分濃度４０〜７０重量
％程度のエマルジョンであれば、これを攪拌しながら乳
液状の高分子中空微細球を単に滴下することによって、
容易に製造することができる。For example, if the adhesive polymer is an emulsion with a solid content concentration of about 40 to 70% by weight, by simply dropping emulsion-like polymer hollow microspheres while stirring the emulsion,
It can be easily manufactured.
か（して得られた感圧性接着剤組成物は、そのまま感圧
性接着剤として用いることもでき、さらにポリテルペン
樹脂等の粘着付与剤をこれに添加して用いても良（、ま
た例えば東亜合成化学工業■製部品名Ｂ−３００等の増
粘剤およびアンモニア水を加えて粘度を高めて使用する
こともできる。さらに、所望により防腐剤、消泡剤およ
びレベリング剤等の各種添加剤を添加しても良い。The pressure-sensitive adhesive composition obtained can be used as a pressure-sensitive adhesive as it is, or it may be used by adding a tackifier such as a polyterpene resin. It can also be used by adding a thickener such as Part Name B-300 manufactured by Kagaku Kogyo ■ and aqueous ammonia to increase the viscosity.Furthermore, various additives such as preservatives, antifoaming agents, and leveling agents can be added as desired. You may do so.
上記感圧性接着剤組成物を、シリコーン系化合物等の離
型剤がコーティングされた離型紙上に、リバースロール
コータ−等によって塗布した後、８０〜１２０℃程度の
熱風で乾燥し、次いでポリエステルフィルム、ポリ塩化
ビニルフィルムまたは紙テープ等を接着剤塗布面に貼り
合わせるという公知の転写法等により、各種フィルムを
基材とする粘着シートを製造でき、また得られた粘着シ
ートにダイカットロール等を用いて、所望形状のカット
を入れることにより、各種ラベルに加工することができ
る。The above-mentioned pressure-sensitive adhesive composition was applied onto a release paper coated with a release agent such as a silicone compound using a reverse roll coater, and then dried with hot air at about 80 to 120°C, and then a polyester film was applied. Adhesive sheets based on various films can be manufactured by a known transfer method, etc., in which polyvinyl chloride film or paper tape is pasted onto an adhesive-coated surface, and the resulting adhesive sheet can be processed using a die-cut roll or the like. By making cuts in the desired shape, it can be processed into various types of labels.
以下、実施例および比較例を示すことにより、本発明を
さらに具体的に説明する。Hereinafter, the present invention will be explained in more detail by showing Examples and Comparative Examples.
なお、以下において部とあるのは重量部を、チとあるの
は重量％を意味する。また、各物性値の測定は、次の方
法で行った。In addition, in the following, "part" means part by weight, and "ch" means weight %. In addition, each physical property value was measured by the following method.
（ａ） 固形分
ＪＩＳ−に６８３３に準じ、１０７℃で３時間乾燥後秤
量。（単位二％）
（ｂ） 隠蔽力
離型紙をはがした粘着シートについて透過光な観察し、
接着剤層の白さを目視にて評価。(a) Solid content: Weighed after drying at 107°C for 3 hours according to JIS-6833. (Unit: 2%) (b) Hiding power After removing the release paper, observe the adhesive sheet using transmitted light.
Visually evaluate the whiteness of the adhesive layer.
（Ｃ） 摩耗性
粘着シートのダイカットをダイカットロールにて１日８
時間ずつ行い、ダイカットロールが研磨を必要になるま
での日数。(C) Die-cut the abrasive adhesive sheet using a die-cut roll for 8 days per day.
The number of days before the die-cut roll needs polishing, in hourly increments.
（ｄ） 粘着力
ＪＩＳ−Ｚ０２３７に準じて測定Ｌ？、＝１８０度引き
剥がし法での値（単位：、ｇ／２５ｍ、）。(d) Adhesive strength measured according to JIS-Z0237 L? ,=value by 180 degree peeling method (unit: g/25m).
実施例１〜２
常温で粘着性重合体として、市販のアクリル系粘着剤エ
マルジョン（東亜合成化学工業■製、商品名アロンタッ
クＡ−２４２２Ｈ）を用い、この中にアクリル／スチレ
ン共重合体からなる高分子中空微細球外径０６μｍ、固
形分２５％）の量を、表−１に記載の如くに変えて混合
して感圧性接着剤組成物を得た。Examples 1 to 2 A commercially available acrylic adhesive emulsion (manufactured by Toagosei Kagaku Kogyo ■, trade name Arontac A-2422H) was used as the adhesive polymer at room temperature. A pressure-sensitive adhesive composition was obtained by changing the amount of molecular hollow microspheres (outer diameter: 06 μm, solid content: 25%) as shown in Table 1 and mixing them.
この組成物を離型紙上へ乾燥後の厚みが２０μｍになる
ようリバースロールコータ−にて塗工した後、上質紙−
５５へ転写して粘着シートを得た。This composition was coated onto release paper using a reverse roll coater so that the thickness after drying was 20 μm, and then coated on high-quality paper.
55 to obtain an adhesive sheet.
この粘着シートの物性は表−１に示したとおりであった
。The physical properties of this pressure-sensitive adhesive sheet were as shown in Table-1.
表−１
実施例６および比較例１〜２
天然ゴム１級１００部と、粘着付与剤としてポリテルペ
ン樹脂（融点９０℃）６０部とを混合し、これを液体窒
素中で冷凍粉砕して、粒径５μｍの粘着性粒子を得た。Table 1 Example 6 and Comparative Examples 1 to 2 100 parts of first class natural rubber and 60 parts of polyterpene resin (melting point 90°C) as a tackifier were mixed, and the mixture was freeze-pulverized in liquid nitrogen to form particles. Adhesive particles with a diameter of 5 μm were obtained.
この粘着性粒子を水中に分散させて、固形分濃度５０％
のエマルジョンを得た。These sticky particles are dispersed in water to achieve a solid content of 50%.
An emulsion was obtained.
このエマルジョン中にアクリル／スチレン共重合体から
なる高分子中空微細球乳濁液（外径０．６３ｍ１固形分
２５％）の量を、表−２に記載の如（に変えて混合し感
圧性接着剤組成物を得た。Into this emulsion, the amount of a polymeric hollow microsphere emulsion (outer diameter 0.63 m, solid content 25%) consisting of an acrylic/styrene copolymer was mixed as shown in Table 2, and the pressure sensitive An adhesive composition was obtained.
この組成物を離型紙上へ乾燥後の厚みが２０μｍになる
ようリバースロールコーターニテ塗工した後、５０μｍ
の白色軟質塩ビフィルムへ転写して粘着シートを得た。This composition was coated with a reverse roll coater onto release paper so that the thickness after drying was 20 μm, and then 50 μm thick.
A pressure-sensitive adhesive sheet was obtained by transferring the mixture onto a white soft PVC film.
その粘着シートの表−２
実施例６および比較例２を対比すると、実施例６の感圧
性接着剤組成物は、隠蔽力が太きいうえに粘着力が著し
く優れていることが分る。Table 2 of the Adhesive Sheet Comparing Example 6 and Comparative Example 2, it can be seen that the pressure-sensitive adhesive composition of Example 6 has a large hiding power and extremely excellent adhesive strength.
比較例３〜４
実施例６で使用したエマルジョンと同一の天然ゴム系エ
マルジョン中に、市販の酸化チタン分散液（固形分５０
％）、および安定化剤として市販のノニオン性乳化剤（
固形分１００％）を、それぞれ表−３に記載の配合割合
で混合して感圧性接着剤組成物を得た。Comparative Examples 3 to 4 A commercially available titanium oxide dispersion (solid content 50
%), and a commercially available nonionic emulsifier as a stabilizer (
(solid content: 100%) were mixed in the proportions shown in Table 3 to obtain a pressure-sensitive adhesive composition.
この組成物を離型紙上へ乾燥後の厚みが２０μｍになる
ようリバースロールコータ−にて塗工した後、２５μｍ
のポリエステルフィルムへ転写して粘着シートを得た。This composition was coated onto release paper using a reverse roll coater so that the thickness after drying was 20 μm, and then 25 μm thick.
A pressure-sensitive adhesive sheet was obtained by transferring the mixture to a polyester film.
その粘着シートの表−６
実施例４
実施例６で使用したエマルジョンと同一の天然ゴム系エ
マルジョンに、アクリル／スチレン共重合体からなり、
外径が０．８μｍの高分子中空微細球乳濁液（固形分２
５チ）を、得られる接着剤の固形分組成が次の如（にな
るように添加して、感圧性接着剤組成物を得た。Table 6 of the adhesive sheet Example 4 The same natural rubber emulsion as that used in Example 6 was made of acrylic/styrene copolymer.
Emulsion of polymer hollow microspheres with an outer diameter of 0.8 μm (solid content 2
5) was added so that the resulting adhesive had a solid content composition as follows, to obtain a pressure-sensitive adhesive composition.
固形分組成
天然ゴム１級 ６１％
ポリテルペン樹脂 ６０％
高分子中空微細球 ９％
得られた接着剤組成物を、離型紙上に乾燥後の厚みが２
０μｍとなるように塗布した後、厚さ２５μｍのポリエ
ステルフィルムに転写して、粘着シートを得、その物性
を評価した。Solid content composition Natural rubber 1st grade 61% Polyterpene resin 60% Polymer hollow microspheres 9% The obtained adhesive composition was dried on a release paper with a thickness of 2.
After coating to a thickness of 0 μm, the adhesive sheet was transferred to a polyester film having a thickness of 25 μm, and its physical properties were evaluated.
その結果は次の如くであった。The results were as follows.
隠蔽力・・・良好
摩耗性−・・６０日
粘着力−・・対 ５ＩＪＳ ３８０＃／２５ｍ、対
ポリエチレン３００ 、ｌｉ’ ／ ２５ ｍ比較例４
と実施例４との対比すると、実施例４の感圧性接着剤組
成物は、酸化チタンを５％含有する比較例４の接着剤組
成物と同程度に隠蔽力が太き（、しかもダイカットロー
ルの摩耗速度が、比較例４の場合の１／２であることが
分る。Hiding power...Good abrasion resistance...60 day adhesive strength...vs. 5IJS 380#/25m, vs.
Polyethylene 300, li'/25 m Comparative Example 4
When compared with Example 4, the pressure-sensitive adhesive composition of Example 4 has a hiding power similar to that of the adhesive composition of Comparative Example 4 containing 5% titanium oxide (and also has a die-cut roll). It can be seen that the wear rate is 1/2 that of Comparative Example 4.
実施例５
実施例６で使用したエマルジョンと同一の天然ゴム系エ
マルジョンに、アクリル／スチレン共重合体からなり、
外径が０．１５μｍの高分子中空微細球乳濁液（固形分
２５％）を添加し、その固形分の組成が次に示される感
圧性接着剤組成物（固形分４２％ニブルツクフィールド
粘度１．０００〜２，０００ ｃｐｓ ） を得た。Example 5 In the same natural rubber emulsion as the emulsion used in Example 6, an acrylic/styrene copolymer was added,
A polymer hollow microsphere emulsion (solid content 25%) with an outer diameter of 0.15 μm is added to form a pressure-sensitive adhesive composition whose solid content is as shown below (solid content 42% Nibruckfield viscosity). 1.000-2,000 cps) was obtained.
固形分組成
天然ゴム１級 ４５％
ポリテルペン樹脂 ２２チ
高分子中空微細球 ６６％
次いで、得られた接着剤組成物中に、２５％アンモニア
水と増粘剤Ｂ−３００（東亜合成化学工業■製）を加え
、ブルックフィールド粘度を２０，０００ｃｐｓ に
上げた感圧性接着剤組成物を得た。高粘度化した接着剤
組成物を用い、実施例４と同様にして粘着テープを製造
し、その物性を評価した結果は、次の如（であった。Solid content composition: 1st grade natural rubber 45% Polyterpene resin 22% Polymer hollow microspheres 66% Next, in the obtained adhesive composition, 25% ammonia water and thickener B-300 (manufactured by Toagosei Chemical Industry Co., Ltd.) were added. ) to obtain a pressure sensitive adhesive composition with a Brookfield viscosity of 20,000 cps. An adhesive tape was produced in the same manner as in Example 4 using the highly viscous adhesive composition, and its physical properties were evaluated.The results were as follows.
隠蔽力・・・良好
摩耗性・・・６０日
粘着力・・・対 ８Ｕ８ ３３１／２５露、対ポリエチ
レン２５０１１／２５ｍ
（ハ）発明の効果
本発明の感圧性接着剤組成物は、従来の感圧性接着剤と
比べ粘着力が極めて強いので、強力な粘着力を必要とす
る各種粘着シート用に好適であり、更に隠蔽力に優れし
かもダイカット加工におゆるダイカットロールの摩耗が
少ないので、接着剤自体に隠蔽力が求められる感圧性接
着剤として特に好適である。Hiding power...good abrasion resistance...60 day adhesive strength...to 8U8 331/25 dew, to polyethylene 25011/25m (c) Effect of the invention The pressure-sensitive adhesive composition of the present invention has a It has extremely strong adhesive strength compared to pressure adhesives, so it is suitable for various adhesive sheets that require strong adhesive strength.It also has excellent hiding power and causes less wear on die-cut rolls during die-cutting process, so it is suitable for adhesive sheets that require strong adhesive strength. It is particularly suitable as a pressure-sensitive adhesive that requires its own hiding power.
Claims (1)
５重量％含有することを特徴とする感圧性接着剤組成物1. Based on the total solid content, 2 to 3 polymer hollow microspheres
A pressure-sensitive adhesive composition characterized by containing 5% by weight.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3951388A JPH01215879A (en) | 1988-02-24 | 1988-02-24 | Pressure-sensitive adhesive composition |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3951388A JPH01215879A (en) | 1988-02-24 | 1988-02-24 | Pressure-sensitive adhesive composition |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01215879A true JPH01215879A (en) | 1989-08-29 |
Family
ID=12555126
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3951388A Pending JPH01215879A (en) | 1988-02-24 | 1988-02-24 | Pressure-sensitive adhesive composition |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01215879A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6288172B1 (en) * | 1995-06-26 | 2001-09-11 | 3M Innovative Properties Company | Light diffusing adhesive |
| JP2006219606A (en) * | 2005-02-10 | 2006-08-24 | Fujicopian Co Ltd | Transfer type pressure sensitive adhesive tape |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5053434A (en) * | 1973-05-17 | 1975-05-12 | ||
| JPS63277290A (en) * | 1987-05-08 | 1988-11-15 | Junkosha Co Ltd | Adhesive of low dielectric constant |
-
1988
- 1988-02-24 JP JP3951388A patent/JPH01215879A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5053434A (en) * | 1973-05-17 | 1975-05-12 | ||
| JPS63277290A (en) * | 1987-05-08 | 1988-11-15 | Junkosha Co Ltd | Adhesive of low dielectric constant |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6288172B1 (en) * | 1995-06-26 | 2001-09-11 | 3M Innovative Properties Company | Light diffusing adhesive |
| JP2006219606A (en) * | 2005-02-10 | 2006-08-24 | Fujicopian Co Ltd | Transfer type pressure sensitive adhesive tape |
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