JP2006297046A - Pressure-sensitive adhesive tape and first-aid adhesive plaster - Google Patents
Pressure-sensitive adhesive tape and first-aid adhesive plaster Download PDFInfo
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- JP2006297046A JP2006297046A JP2005170699A JP2005170699A JP2006297046A JP 2006297046 A JP2006297046 A JP 2006297046A JP 2005170699 A JP2005170699 A JP 2005170699A JP 2005170699 A JP2005170699 A JP 2005170699A JP 2006297046 A JP2006297046 A JP 2006297046A
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- pressure
- sensitive adhesive
- adhesive layer
- adhesive tape
- skin
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- 239000004820 Pressure-sensitive adhesive Substances 0.000 title claims abstract description 87
- 239000000853 adhesive Substances 0.000 title abstract description 44
- 230000001070 adhesive effect Effects 0.000 title abstract description 44
- 239000011505 plaster Substances 0.000 title abstract 2
- 239000010410 layer Substances 0.000 claims abstract description 44
- 239000000463 material Substances 0.000 claims abstract description 19
- 206010013786 Dry skin Diseases 0.000 claims abstract description 10
- 230000037336 dry skin Effects 0.000 claims abstract description 10
- 239000002390 adhesive tape Substances 0.000 claims description 26
- CERQOIWHTDAKMF-UHFFFAOYSA-N Methacrylic acid Chemical compound CC(=C)C(O)=O CERQOIWHTDAKMF-UHFFFAOYSA-N 0.000 claims description 16
- 238000000034 method Methods 0.000 claims description 13
- 229920000642 polymer Polymers 0.000 claims description 11
- 125000005907 alkyl ester group Chemical group 0.000 claims description 9
- BVKZGUZCCUSVTD-UHFFFAOYSA-N carbonic acid Chemical compound OC(O)=O BVKZGUZCCUSVTD-UHFFFAOYSA-N 0.000 claims description 8
- ZIIVEKCKOPDBLT-UHFFFAOYSA-N 2-octyldodecyl 2-hydroxypropanoate Chemical compound CCCCCCCCCCC(COC(=O)C(C)O)CCCCCCCC ZIIVEKCKOPDBLT-UHFFFAOYSA-N 0.000 claims description 7
- 229940077397 octyldodecyl lactate Drugs 0.000 claims description 7
- HGKOWIQVWAQWDS-UHFFFAOYSA-N bis(16-methylheptadecyl) 2-hydroxybutanedioate Chemical compound CC(C)CCCCCCCCCCCCCCCOC(=O)CC(O)C(=O)OCCCCCCCCCCCCCCCC(C)C HGKOWIQVWAQWDS-UHFFFAOYSA-N 0.000 claims description 4
- 238000005034 decoration Methods 0.000 claims description 3
- 230000035699 permeability Effects 0.000 abstract description 14
- 239000011248 coating agent Substances 0.000 abstract description 11
- 238000000576 coating method Methods 0.000 abstract description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 8
- 210000004243 sweat Anatomy 0.000 abstract description 6
- 208000003251 Pruritus Diseases 0.000 abstract description 4
- 230000035900 sweating Effects 0.000 abstract description 4
- 229920006222 acrylic ester polymer Polymers 0.000 abstract description 2
- 230000002349 favourable effect Effects 0.000 abstract 2
- 239000007788 liquid Substances 0.000 abstract 2
- BJEPYKJPYRNKOW-REOHCLBHSA-N (S)-malic acid Chemical compound OC(=O)[C@@H](O)CC(O)=O BJEPYKJPYRNKOW-REOHCLBHSA-N 0.000 abstract 1
- JVTAAEKCZFNVCJ-UHFFFAOYSA-N Lactic Acid Natural products CC(O)C(O)=O JVTAAEKCZFNVCJ-UHFFFAOYSA-N 0.000 abstract 1
- BJEPYKJPYRNKOW-UHFFFAOYSA-N alpha-hydroxysuccinic acid Natural products OC(=O)C(O)CC(O)=O BJEPYKJPYRNKOW-UHFFFAOYSA-N 0.000 abstract 1
- 239000004310 lactic acid Substances 0.000 abstract 1
- 235000014655 lactic acid Nutrition 0.000 abstract 1
- 239000001630 malic acid Substances 0.000 abstract 1
- 235000011090 malic acid Nutrition 0.000 abstract 1
- 239000012790 adhesive layer Substances 0.000 description 16
- 239000000123 paper Substances 0.000 description 14
- 239000000758 substrate Substances 0.000 description 10
- 238000001035 drying Methods 0.000 description 8
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 7
- 150000001875 compounds Chemical class 0.000 description 7
- 239000000178 monomer Substances 0.000 description 7
- 229920000728 polyester Polymers 0.000 description 7
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 description 6
- 230000000052 comparative effect Effects 0.000 description 6
- 238000012360 testing method Methods 0.000 description 6
- 238000004132 cross linking Methods 0.000 description 5
- 239000000835 fiber Substances 0.000 description 5
- -1 hydroxyethyl ester Chemical class 0.000 description 5
- 239000004745 nonwoven fabric Substances 0.000 description 5
- 125000000217 alkyl group Chemical group 0.000 description 4
- 239000003795 chemical substances by application Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 description 3
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 3
- 239000004593 Epoxy Substances 0.000 description 3
- 238000003287 bathing Methods 0.000 description 3
- 238000004049 embossing Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 239000003431 cross linking reagent Substances 0.000 description 2
- 125000003438 dodecyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 2
- RTZKZFJDLAIYFH-UHFFFAOYSA-N ether Substances CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 2
- 239000006260 foam Substances 0.000 description 2
- 230000007803 itching Effects 0.000 description 2
- DNIAPMSPPWPWGF-UHFFFAOYSA-N monopropylene glycol Natural products CC(O)CO DNIAPMSPPWPWGF-UHFFFAOYSA-N 0.000 description 2
- 229920001228 polyisocyanate Polymers 0.000 description 2
- 239000005056 polyisocyanate Substances 0.000 description 2
- 229920003067 (meth)acrylic acid ester copolymer Polymers 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
- GOXQRTZXKQZDDN-UHFFFAOYSA-N 2-Ethylhexyl acrylate Chemical compound CCCCC(CC)COC(=O)C=C GOXQRTZXKQZDDN-UHFFFAOYSA-N 0.000 description 1
- XNWFRZJHXBZDAG-UHFFFAOYSA-N 2-METHOXYETHANOL Chemical compound COCCO XNWFRZJHXBZDAG-UHFFFAOYSA-N 0.000 description 1
- FWWXYLGCHHIKNY-UHFFFAOYSA-N 2-ethoxyethyl prop-2-enoate Chemical compound CCOCCOC(=O)C=C FWWXYLGCHHIKNY-UHFFFAOYSA-N 0.000 description 1
- OMIGHNLMNHATMP-UHFFFAOYSA-N 2-hydroxyethyl prop-2-enoate Chemical compound OCCOC(=O)C=C OMIGHNLMNHATMP-UHFFFAOYSA-N 0.000 description 1
- AGBXYHCHUYARJY-UHFFFAOYSA-N 2-phenylethenesulfonic acid Chemical compound OS(=O)(=O)C=CC1=CC=CC=C1 AGBXYHCHUYARJY-UHFFFAOYSA-N 0.000 description 1
- HRPVXLWXLXDGHG-UHFFFAOYSA-N Acrylamide Chemical compound NC(=O)C=C HRPVXLWXLXDGHG-UHFFFAOYSA-N 0.000 description 1
- 229920002972 Acrylic fiber Polymers 0.000 description 1
- 229920001342 Bakelite® Polymers 0.000 description 1
- 229920000742 Cotton Polymers 0.000 description 1
- SNRUBQQJIBEYMU-UHFFFAOYSA-N Dodecane Natural products CCCCCCCCCCCC SNRUBQQJIBEYMU-UHFFFAOYSA-N 0.000 description 1
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 description 1
- 240000000907 Musa textilis Species 0.000 description 1
- WHNWPMSKXPGLAX-UHFFFAOYSA-N N-Vinyl-2-pyrrolidone Chemical compound C=CN1CCCC1=O WHNWPMSKXPGLAX-UHFFFAOYSA-N 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 239000002202 Polyethylene glycol Substances 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- OFOBLEOULBTSOW-UHFFFAOYSA-N Propanedioic acid Natural products OC(=O)CC(O)=O OFOBLEOULBTSOW-UHFFFAOYSA-N 0.000 description 1
- 229920000297 Rayon Polymers 0.000 description 1
- GUGOEEXESWIERI-UHFFFAOYSA-N Terfenadine Chemical compound C1=CC(C(C)(C)C)=CC=C1C(O)CCCN1CCC(C(O)(C=2C=CC=CC=2)C=2C=CC=CC=2)CC1 GUGOEEXESWIERI-UHFFFAOYSA-N 0.000 description 1
- 229920002978 Vinylon Polymers 0.000 description 1
- 239000002313 adhesive film Substances 0.000 description 1
- 125000003545 alkoxy group Chemical group 0.000 description 1
- 125000003368 amide group Chemical group 0.000 description 1
- 230000000202 analgesic effect Effects 0.000 description 1
- 230000003712 anti-aging effect Effects 0.000 description 1
- 230000001387 anti-histamine Effects 0.000 description 1
- 229940121363 anti-inflammatory agent Drugs 0.000 description 1
- 239000002260 anti-inflammatory agent Substances 0.000 description 1
- 239000000739 antihistaminic agent Substances 0.000 description 1
- 239000003963 antioxidant agent Substances 0.000 description 1
- 230000003078 antioxidant effect Effects 0.000 description 1
- 239000012298 atmosphere Substances 0.000 description 1
- 239000004637 bakelite Substances 0.000 description 1
- 230000001588 bifunctional effect Effects 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
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 description 1
- 239000013522 chelant Substances 0.000 description 1
- 238000010382 chemical cross-linking Methods 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 239000003246 corticosteroid Substances 0.000 description 1
- 238000010227 cup method (microbiological evaluation) Methods 0.000 description 1
- 125000002704 decyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 1
- 230000003292 diminished effect Effects 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 238000010894 electron beam technology Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 210000000245 forearm Anatomy 0.000 description 1
- 125000003187 heptyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 125000004051 hexyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- 125000002768 hydroxyalkyl group Chemical group 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 239000011256 inorganic filler Substances 0.000 description 1
- 229910003475 inorganic filler Inorganic materials 0.000 description 1
- 238000005342 ion exchange Methods 0.000 description 1
- 239000002655 kraft paper Substances 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- PBOSTUDLECTMNL-UHFFFAOYSA-N lauryl acrylate Chemical compound CCCCCCCCCCCCOC(=O)C=C PBOSTUDLECTMNL-UHFFFAOYSA-N 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
- FPYJFEHAWHCUMM-UHFFFAOYSA-N maleic anhydride Chemical compound O=C1OC(=O)C=C1 FPYJFEHAWHCUMM-UHFFFAOYSA-N 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- SINFYWWJOCXYFD-UHFFFAOYSA-N methoxymethyl prop-2-enoate Chemical compound COCOC(=O)C=C SINFYWWJOCXYFD-UHFFFAOYSA-N 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
- 239000000203 mixture Substances 0.000 description 1
- 125000001400 nonyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 125000002347 octyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 150000001451 organic peroxides Chemical class 0.000 description 1
- 125000001147 pentyl group Chemical group C(CCCC)* 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 229920000058 polyacrylate Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920001223 polyethylene glycol Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
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- 239000004814 polyurethane Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
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- 150000003839 salts Chemical class 0.000 description 1
- 210000002374 sebum Anatomy 0.000 description 1
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- 125000004962 sulfoxyl group Chemical group 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
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- 230000001225 therapeutic effect Effects 0.000 description 1
- 230000008719 thickening Effects 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
- 238000013519 translation Methods 0.000 description 1
- 125000002889 tridecyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 239000006097 ultraviolet radiation absorber Substances 0.000 description 1
- 125000002948 undecyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 229920006307 urethane fiber Polymers 0.000 description 1
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 1
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Abstract
Description
本発明は、粘着テープに関し、詳しくは、皮膚に適用される医療用貼付製品、たとえば、救急絆創膏として好適に用いられる粘着テープに関する。 The present invention relates to an adhesive tape, and more particularly, to an adhesive tape suitably used as a medical patch product applied to the skin, for example, an emergency bandage.
従来、医療用貼付製品として粘着包帯、絆創膏、サージカルテープ等が使用されているが、汗が滲んだ人体に貼付する場合に汗によって粘着テープの初期タックが妨げられ、貼付出来ないといった問題や、これらを人体に長時間貼り付けておくと皮膚表面からの発汗によるテープの剥がれが生じるという問題があり、医療用粘着テープには湿潤面への接着性や透湿性が要求されている。 Conventionally, adhesive bandages, bandages, surgical tapes, etc. have been used as medical patch products. However, when sticking to a human body that has perspired, the problem is that the initial tack of the adhesive tape is hindered by sweat and the sticking cannot be done. If this is applied to the human body for a long time, there is a problem that the tape peels off due to sweating from the skin surface, and the adhesive tape for medical use and moisture permeability are required.
感圧接着テープおよびその他の同種類のものは、医療用テープ、創傷または外科用包帯、スポーツ用テープ、外科的ドレープ、あるいはセンサー、電極、ストーマ装具などの医療用具の接着に使用されるテープまたはタブなど、皮膚に対する接着が必要となる多種多様な用途で使用されている。これらの接着剤がコーティングされた製品のすべてに関係する問題は、乾燥した皮膚と同様に濡れた皮膚に対しても十分高い接着力を実現するという目標のバランスをとる必要があるということである。汗が滲んだ人体に貼付する場合に汗によって粘着テープの初期タックが妨げられ、貼付出来ないといった問題が生じ、医療用粘着テープには湿潤面への接着性が要求されている。 Pressure sensitive adhesive tapes and other similar types are medical tapes, wound or surgical bandages, sports tapes, surgical drapes, or tapes used for bonding medical devices such as sensors, electrodes, stoma appliances, etc. It is used in a wide variety of applications that require adhesion to the skin, such as tabs. The problem associated with all of these adhesive-coated products is that the goal of achieving sufficiently high adhesion on wet as well as dry skin must be balanced. . When affixed to a human body that has perspired sweat, the initial tack of the adhesive tape is hindered by the sweat, causing a problem that it cannot be applied, and the adhesive tape for medical use is required to adhere to a wet surface.
このような問題を解決するため特許文献１では粘着剤を吸水性基材にパターンコーティングする方法が公開されている。しかし、特表２００２−５３１１７１の方法では、粘着剤そのものに湿潤接着性を持たせたものでは無いと言うことと、基材構成が限定されるため汎用性が低いという問題があった。 In order to solve such a problem, Patent Document 1 discloses a method of pattern-coating an adhesive on a water-absorbing substrate. However, the method disclosed in Japanese Translation of PCT International Publication No. 2002-53171 has a problem that versatility is low because the adhesive itself is not provided with wet adhesiveness and the base material configuration is limited.
本発明は、上記欠点に鑑み、濡れた皮膚への良好な接着性と乾燥した皮膚への接着力及び凝集力のバランスが良好で且つ使用基材（材料）の制限無く、高い透湿性を有する医療用貼付製品として好適に使用しうる粘着テープ、好ましくは絆創膏、パップ剤、ドレッシング材などに用いられ、水や汗で濡れた皮膚にも良好な接着性を有し、且つ貼付後発汗による蒸れ・かゆみを極限まで低下した粘着テープを提供することを目的とする。尚、本発明に於ける粘着テープには、粘着シート及び粘着フィルムも含まれる。 In view of the above drawbacks, the present invention has a good balance between good adhesion to wet skin, adhesion to dry skin, and cohesion, and has high moisture permeability without limitation on the substrate (material) used. Adhesive tape that can be suitably used as a medical patch product, preferably used in adhesive bandages, poultices, dressing materials, etc., has good adhesion to water and sweat wet skin, and stuffiness due to sweating after application -It aims at providing the adhesive tape which reduced the itch to the limit. In addition, an adhesive sheet and an adhesive film are also contained in the adhesive tape in this invention.
上記目的を達成するために、請求項１の発明は、少なくとも粘着剤層を有する粘着テープにおいて、粘着剤層が（メタ）アクリル酸エステル系重合体１００重量部と、この（メタ）アクリル酸エステル系重合体と相溶性を有するヒドロキシカルボン酸高級アルキルエステル３〜３０重量部とを含むことを特徴とする粘着テープである。 In order to achieve the above object, the invention of claim 1 is the pressure-sensitive adhesive tape having at least a pressure-sensitive adhesive layer, wherein the pressure-sensitive adhesive layer comprises 100 parts by weight of a (meth) acrylic acid ester-based polymer and the (meth) acrylic acid ester. A pressure-sensitive adhesive tape comprising 3 to 30 parts by weight of a higher alkyl ester of a hydroxycarboxylic acid having compatibility with a polymer.
請求項２の発明は、ヒドロキシカルボン酸高級アルキルエステルが、乳酸オクチルドデシルおよびリンゴ酸ジイソステアリルの少なくともいずれかであることを特徴とする請求項１記載の粘着テープである。 The invention according to claim 2 is the pressure-sensitive adhesive tape according to claim 1, wherein the higher alkyl ester of hydroxycarboxylic acid is at least one of octyldodecyl lactate and diisostearyl malate.
請求項３の発明は、濡れた皮膚に対する初期接着力が少なくとも０．０８Ｎ／ｃｍであり、乾燥した皮膚に対する初期接着力が少なくとも０．０８Ｎ／ｃｍであり、濡れた皮膚に対する初期接着力が、乾燥した皮膚に対する初期接着力の少なくとも７０％であることを特徴とする請求項１又は請求項２に記載の粘着テープである。 The invention of claim 3 has an initial adhesion to wet skin of at least 0.08 N / cm, an initial adhesion to dry skin of at least 0.08 N / cm, and an initial adhesion to wet skin of The pressure-sensitive adhesive tape according to claim 1 or 2, wherein the pressure-sensitive adhesive tape is at least 70% of the initial adhesive force to dry skin.
請求項４の発明は、基材に沿って積層された粘着剤層を備え、粘着剤層が、基材に対する粘着剤層の占有塗工面積率が７０〜９８％になるように規則的に基材に部分塗工されていることを特徴とする請求項１〜請求項３のいずれかに記載の粘着テープである。 Invention of Claim 4 is equipped with the adhesive layer laminated | stacked along the base material, and an adhesive layer is regularly so that the occupation area ratio of the adhesive layer with respect to a base material may be 70 to 98%. The pressure-sensitive adhesive tape according to claim 1, wherein the pressure-sensitive adhesive tape is partially coated on a substrate.
請求項５の発明は、圧着圧力８０ｇ／ｃｍ2で皮膚に粘着剤層を圧着させたとき、５０ｍｍ×５０ｍｍの貼付面積当たりの皮膚に接する粘着剤の総面積が、貼付面積の５０〜９５％になるように粘着剤層表面が凹凸に形成されていることを特徴とする請求項１〜請求項４のいずれかに記載の粘着テープである。 In the invention of claim 5, when the pressure-sensitive adhesive layer is pressure-bonded to the skin at a pressure pressure of 80 g / cm 2 , the total area of the pressure-sensitive adhesive contacting the skin per 50 mm × 50 mm sticking area is 50 to 95% of the sticking area. The pressure-sensitive adhesive tape according to any one of claims 1 to 4, wherein the pressure-sensitive adhesive layer surface is formed to be uneven.
請求項６の発明は、粘着剤層表面の凹凸が粘着剤層側に凹凸装飾加工が施された離型シートに粘着剤を塗工することによって形成されていることを特徴とする請求項５に記載の粘着テープである。 The invention according to claim 6 is characterized in that the surface of the pressure-sensitive adhesive layer is formed by applying a pressure-sensitive adhesive to a release sheet having a concave-convex decorative process on the pressure-sensitive adhesive layer side. It is the adhesive tape of description.
請求項７の発明は、救急絆創膏として用いられる請求項１〜請求項６のいずれかに記載の粘着テープである。 Invention of Claim 7 is an adhesive tape in any one of Claims 1-6 used as an emergency bandage.
以下に、本発明を詳細に説明する。
本発明でいう（メタ）アクリル酸エステル系重合体としては、特に限定されないが、たとえば、アルキル基がブチル、ペンチル、ヘキシル、ヘプチル、オクチル、ノニル、デシル、ウンデシル、ドデシル、トリデシル、ラウリルなどの直鎖アルキル基や分岐アルキル基を有する（メタ）アクリル酸アルキルエステル重合体、（メタ）アクリル酸メチルセロソルブ（アクリル酸エチレングリコール）等の側鎖にエーテル結合含有する（メタ）アクリル酸エステル等の重合体が挙げられ、これらを１種もしくは２種以上用いることが出来る。
The present invention is described in detail below.
The (meth) acrylic acid ester polymer referred to in the present invention is not particularly limited. For example, the alkyl group is a straight chain such as butyl, pentyl, hexyl, heptyl, octyl, nonyl, decyl, undecyl, dodecyl, tridecyl, lauryl and the like. (Meth) acrylic acid alkyl ester polymers having a chain alkyl group or branched alkyl group, and (meth) acrylic acid esters such as (meth) acrylic acid ester containing an ether bond in the side chain such as (meth) acrylic acid methyl cellosolve (ethylene glycol acrylate) These may be combined, and one or more of these may be used.
また、上記（メタ）アクリル酸エステル系重合体としては（メタ）アクリル酸エステルと共重合可能な他のモノマーの共重合体も用いることができる。共重合可能な他のモノマーとしては、例えば、アクリル酸、イタコン酸、マレイン酸、無水マレイン酸などのカルボキシル基含有モノマー、スチレンスルホン酸などのスルホキシル基含有モノマー、アクリル酸ヒドロキシエチルエステルなどのヒドロキシ基含有モノマー、アクリルアミドなどのアミド基含有モノマー、（メタ）アクリル酸メトキシ（エトキシ）プロピレングリコール、（メタ）アクリル酸メトキシ（エトキシ）ポリエチレングリコールなどのアルコキシ基、またはエーテル結合含有の（メタ）アクリル酸エステル、Ｎ−ビニル−２−ピロリドンなどのビニルモノマーなどが挙げられる。これらは、凝集力調整や相溶性向上の為に用いることが出来る。 Moreover, as the (meth) acrylic acid ester-based polymer, a copolymer of another monomer that can be copolymerized with the (meth) acrylic acid ester can also be used. Examples of other copolymerizable monomers include, for example, carboxyl group-containing monomers such as acrylic acid, itaconic acid, maleic acid, and maleic anhydride, sulfoxyl group-containing monomers such as styrenesulfonic acid, and hydroxy groups such as hydroxyethyl ester of acrylic acid. -Containing monomers, amide group-containing monomers such as acrylamide, alkoxy groups such as (meth) acrylic acid methoxy (ethoxy) propylene glycol, (meth) acrylic acid methoxy (ethoxy) polyethylene glycol, or ether bond-containing (meth) acrylic acid esters And vinyl monomers such as N-vinyl-2-pyrrolidone. These can be used for adjusting cohesion and improving compatibility.
本発明に於いて、上記（メタ）アクリル酸エステル系重合体１００重量部に対し、ヒドロキシカルボン酸高級アルキルエステルが３〜３０重量部が添加される。これにより、濡れた皮膚への良好な接着性を有し、かつ、乾燥した皮膚への接着力及び凝集力のバランスが飛躍的に向上することを見いだした。すなわち、上記（メタ）アクリル酸エステル系共重合体に対しヒドロキシカルボン酸高級アルキルエステルが３重量部未満であると肌の凹凸に充分追従せず、初期接着力が低下し、結果的に濡れた肌への貼付性が不足する。３０重量部より多くなると、濡れた肌への貼付性は向上するが、凝集性能が悪化し、粘着テープを皮膚から剥離する際に糊残りが発生しやすくなる。
また、ヒドロキシカルボン酸高級アルキルエステルとしては、特に限定されないが、乳酸オクチルドデシル、および、リンゴ酸ジイソステアリルの少なくともいずれか１種が好適に用いられる。
In the present invention, 3 to 30 parts by weight of a hydroxyalkyl higher alkyl ester is added to 100 parts by weight of the (meth) acrylic acid ester polymer. As a result, it has been found that it has a good adhesion to wet skin and the balance between the adhesion force and the cohesion force to dry skin is dramatically improved. That is, if the hydroxycarboxylic acid higher alkyl ester is less than 3 parts by weight relative to the (meth) acrylic acid ester copolymer, the unevenness of the skin is not sufficiently followed, and the initial adhesive force is reduced, resulting in wetness. Insufficient adhesion to skin. If it exceeds 30 parts by weight, the adhesiveness to wet skin is improved, but the cohesive performance is deteriorated, and adhesive residue tends to be generated when the adhesive tape is peeled from the skin.
Moreover, the hydroxycarboxylic acid higher alkyl ester is not particularly limited, but at least one of octyldodecyl lactate and diisostearyl malate is preferably used.
本発明で用いる粘着剤層は、架橋されてもよい。架橋方法としては、任意の方法が採用されてよく、例えば、紫外線照射法や電子線照射等の放射線照射による物理的架橋やポリイソシアネート化合物、エポキシ化合物、有機過酸化物、有機金属塩、金属アルコラート、金属キレート化合物、他官能性化合物等の架橋剤を用いる化学的架橋が挙げられるが、反応性や取り扱いの点からポリイソシアネート化合物、エポキシ化合物が好適に用いられ、これらは、塗工、乾燥までは溶液の増粘現象を起こさず、極めて作業性に優れる。 The pressure-sensitive adhesive layer used in the present invention may be cross-linked. As the crosslinking method, any method may be employed, for example, physical crosslinking by irradiation with radiation such as ultraviolet irradiation or electron beam irradiation, polyisocyanate compound, epoxy compound, organic peroxide, organic metal salt, metal alcoholate. Chemical cross-linking using cross-linking agents such as metal chelate compounds and other functional compounds, but polyisocyanate compounds and epoxy compounds are preferably used from the viewpoint of reactivity and handling. Does not cause thickening of the solution and is extremely excellent in workability.
この場合の上記架橋剤の配合量は、添加量が少なくなると、架橋密度が低下し、粘着テープを剥離紙や皮膚から剥離する際に糊残りが発生しやすくなり、多くなると、ゲル分率が高くなり架橋密度が高くなるため流動性が低下して十分な粘着性が得られなくなるので（メタ）アクリル酸エステル系重合体１００重量部に対して、０．０１〜３重量部が適当である。 In this case, the amount of the crosslinking agent is reduced when the addition amount is reduced, the crosslinking density is lowered, and adhesive residue is easily generated when the adhesive tape is peeled from the release paper or the skin. When the addition amount is increased, the gel fraction is increased. Since it becomes higher and the crosslinking density becomes higher, the fluidity is lowered and sufficient tackiness cannot be obtained, so 0.01 to 3 parts by weight is appropriate for 100 parts by weight of the (meth) acrylate polymer. .
上記粘着剤層のゲル分率は、架橋密度の目安となり、２０〜６０重量％が好ましく、より好ましくは３０〜５０重量％である。 The gel fraction of the pressure-sensitive adhesive layer is a measure of the crosslinking density, preferably 20 to 60% by weight, more preferably 30 to 50% by weight.
尚、本発明に使用される粘着剤層は、基材の片面に粘着剤層の占有塗工面積が７０〜９８％になるように規則的に部分塗工されていることを特徴とする。「占有塗工面積が７０〜９８％になるように規則的に部分塗工されている」とは粘着剤層が基材表面に条線状、水玉状、タイル状、ストライプ状などの規則的な形状で均一に塗工され、粘着剤層の全面積で基材上の粘着剤が塗工されている部分が７０〜９８％を占有していることを意味する。 The pressure-sensitive adhesive layer used in the present invention is characterized in that it is regularly and partially coated on one side of the substrate so that the area occupied by the pressure-sensitive adhesive layer is 70 to 98%. “Regularly coated so that the occupied coating area is 70 to 98%” means that the pressure-sensitive adhesive layer has a regular shape such as a line, polka dot, tile, or stripe on the surface of the substrate. This means that the portion that is uniformly coated in a uniform shape and the area where the pressure-sensitive adhesive on the substrate is coated occupies 70 to 98% of the entire area of the pressure-sensitive adhesive layer.
上記占有塗工率が７０％以下であると貼付時の接着力が極端に低下する。または貼付後水作業や入浴時に粘着剤が無い部分から水が進入し、剥がれやすくなる等の不具合が発生する。９８％を超えると、透湿性が悪化し、発汗時の蒸れ等に対する効果が希薄となるおそれがある。 If the occupation coating ratio is 70% or less, the adhesive force at the time of application is extremely reduced. Or after adhering, problems such as water entering from a portion where there is no adhesive during bathing or bathing, and peeling off easily occur. If it exceeds 98%, the moisture permeability is deteriorated, and the effect on dampness during sweating may be dilute.
また、粘着剤層の厚みは製造工程、使用上問題ない範囲で任意に設定してよく、０．０１〜３ｍｍが最も好適である。０．０１ｍｍ未満であると貼付時の関節等激しい運動時に皮膚に追従しにくく、３ｍｍを超えるとコーティング時に粘着剤が流れて粘着剤層が所定の形状に保持できない。 Further, the thickness of the pressure-sensitive adhesive layer may be arbitrarily set within the range where there is no problem in the production process and use, and 0.01 to 3 mm is most preferable. If it is less than 0.01 mm, it is difficult to follow the skin during intense exercise such as a joint at the time of application, and if it exceeds 3 mm, the adhesive flows during coating and the adhesive layer cannot be maintained in a predetermined shape.
さらに、本発明に使用される粘着剤層は、圧着圧力８０ｇ／ｃｍ2で皮膚に粘着剤層を圧着させたとき、５０ｍｍ×５０ｍｍの貼付面積当たりの皮膚に接する粘着剤の総面積が、貼付面積の５０〜９５％になるように粘着剤層表面が凹凸に形成されていることが好ましい。
すなわち、「圧着圧力８０ｇ／ｃｍ2で皮膚に粘着剤層を圧着させたとき、５０ｍｍ×５０ｍｍの貼付面積当たりの皮膚に接する粘着剤の総面積が、貼付面積の５０〜９５％になるように粘着剤層表面が凹凸に形成されている」とは、粘着剤組成物が基材表面に粘着剤層表面に条線状、水玉状、タイル状、ストライプ状などの凹凸形状に均一または不均一な塗工状態とされていることを意味する。
Further, the pressure-sensitive adhesive layer used in the present invention has a total area of the pressure-sensitive adhesive in contact with the skin of 50 mm × 50 mm when the pressure-sensitive adhesive layer is pressure-bonded to the skin at a pressure of 80 g / cm 2. It is preferable that the pressure-sensitive adhesive layer surface is formed to be uneven so as to be 50 to 95% of the area.
That is, “when the pressure-sensitive adhesive pressure is 80 g / cm 2 and the pressure-sensitive adhesive layer is pressure-bonded to the skin, the total area of the pressure-sensitive adhesive contacting the skin per 50 mm × 50 mm sticking area is 50 to 95% of the sticking area. `` The adhesive layer surface is unevenly formed '' means that the adhesive composition is uniform or non-uniform in the uneven shape such as a line, polka dot, tile, stripe on the surface of the adhesive layer on the substrate surface This means that the coating state is correct.
なお、貼付面積当たりの皮膚に接する粘着剤の総面積が、貼付面積の５０％未満であると、貼付時の接着力が極端に低下する、または貼付後水作業や入浴時に粘着層が無い部分から水が進入し、剥がれやすくなるなどの不具合が発生する恐れがあり、９５％以上であると、透湿性が悪化し、発汗時の蒸れ等に対する効果が希薄となる恐れがある。 In addition, when the total area of the adhesive in contact with the skin per application area is less than 50% of the application area, the adhesive strength at the time of application is extremely reduced, or there is no adhesive layer at the time of water work or bathing after application. If the water content is 95% or more, the moisture permeability may be deteriorated, and the effect on stuffiness during perspiration may be diminished.
このような粘着剤層を形成する方法としては、特に限定されないが、粘着剤層表面の凹凸が粘着剤層側に凹凸装飾加工が施された離型シートに粘着剤を塗工することによって形成する方法が挙げられる。粘着剤層は離型シートの片面あるいは両面に形成することができる。
すなわち、上記凹凸装飾加工を用いることで、粘着剤が凹部に落ち込むことで、離型紙からテープを展開した際、凹部の粘着剤が強制的に離型紙側に剥離され、微細孔を形成することで、粘着剤の透湿性が格段に向上することを見いだした。
The method for forming such a pressure-sensitive adhesive layer is not particularly limited, but the surface of the pressure-sensitive adhesive layer is formed by applying a pressure-sensitive adhesive to a release sheet that has been subjected to uneven decoration processing on the pressure-sensitive adhesive layer side. The method of doing is mentioned. The pressure-sensitive adhesive layer can be formed on one side or both sides of the release sheet.
In other words, by using the above-mentioned concave and convex decoration process, the adhesive drops into the recesses, and when the tape is developed from the release paper, the adhesive in the recesses is forcibly peeled to the release paper side to form micropores. Thus, it has been found that the moisture permeability of the pressure-sensitive adhesive is remarkably improved.
なお、粘着剤層の凹部の厚みは製造工程、使用上問題ない範囲で任意に設定してよく、０〜１ｍｍが最も好適である。すなわち、凹部部分の粘着剤層の厚みが限りなく０（すなわち非粘着塗工部がある）に近いほうが、透湿性に優れ、１ｍｍを超えると透湿性への効果が期待できなくなる恐れがある。 In addition, you may set arbitrarily the thickness of the recessed part of an adhesive layer in the range which does not have a problem in a manufacturing process and use, and 0-1 mm is the most suitable. That is, when the thickness of the pressure-sensitive adhesive layer in the recessed portion is as close as possible to 0 (that is, there is a non-adhesive coating portion), the moisture permeability is excellent, and if it exceeds 1 mm, the effect on moisture permeability may not be expected.
本発明においては上記のようにして得られた粘着剤層に必要に応じて、沈痛消炎剤、ビタミン剤、抗ヒスタミン剤、コルチコステロイド類、など粘着剤と相溶可能な薬物をその治療目的に応じて任意に含有させても良い。 In the present invention, the adhesive layer obtained as described above, if necessary, a drug compatible with the adhesive, such as an analgesic anti-inflammatory agent, vitamin, antihistamine, corticosteroid, etc., depending on its therapeutic purpose. And optionally contained.
本発明で用いる粘着剤層には、本発明の効果を損なわない範囲内で、一般に粘着剤に添加されている、粘着付与剤、無機充填剤、老化防止剤、酸化防止剤、紫外線吸収剤、顔料等が添加されてもよい The pressure-sensitive adhesive layer used in the present invention is generally added to the pressure-sensitive adhesive within a range not impairing the effects of the present invention, tackifier, inorganic filler, anti-aging agent, antioxidant, ultraviolet absorber, Pigments etc. may be added
本発明で使用される基材は、特に限定されず、例えば、パルプ、マニラ麻、綿布、ポリエステル繊維、レーヨン繊維、ナイロン繊維、アクリル繊維、ビニロン繊維、スパン繊維、ウレタン繊維等、又はこれらの混合繊維からなる不織布、織布等や、または発泡体またはラミネート品やウレタン等の透湿性フィルムの単独フィルムまたは発泡体またはラミネート品またはこれらを機械的に穿孔処理したものが挙げられる。 The substrate used in the present invention is not particularly limited, and examples thereof include pulp, manila hemp, cotton cloth, polyester fiber, rayon fiber, nylon fiber, acrylic fiber, vinylon fiber, spun fiber, urethane fiber, or a mixed fiber thereof. Non-woven fabrics, woven fabrics, etc., or foams or laminates, single films of moisture-permeable films such as urethane, foams or laminates, or those obtained by mechanically perforating them.
粘着剤層を形成する方法としては、特に限定されず、例えば、上記粘着剤を直接基材の片面に塗工する方法、予め離型紙上に粘着剤を塗工し、粘着剤層を形成した後、得られた粘着剤層を基材に転写し積層する方法が挙げられ、中でも、転写する方法が好適に用いられる。 The method for forming the pressure-sensitive adhesive layer is not particularly limited. For example, a method in which the pressure-sensitive adhesive is directly applied to one side of the substrate, a pressure-sensitive adhesive is previously applied on a release paper, and a pressure-sensitive adhesive layer is formed. Then, the method of transferring and laminating the obtained adhesive layer to a base material is mentioned, Among these, the method of transferring is used suitably.
上記離型紙は、粘着テープ用に使用されている任意の離型紙が使用可能であり、例えば、クラフト紙、クルパック紙、上質紙等の紙や、ポリエチレン、ポリプロピレン、ポリエステル、ポリウレタン等の合成樹脂フィルム及びその積層フィルムの表面に長鎖アルキル系離型剤、シリコーン系離型剤等の離型剤を塗布したものが挙げられる。 As the release paper, any release paper used for adhesive tapes can be used. For example, paper such as kraft paper, kurpack paper, and high-quality paper, and synthetic resin films such as polyethylene, polypropylene, polyester, and polyurethane. And those obtained by applying a release agent such as a long-chain alkyl release agent or a silicone release agent to the surface of the laminated film.
本発明の粘着テープは、粘着剤層が（メタ）アクリル酸エステル系重合体１００重量部と、この（メタ）アクリル酸エステル系重合体と相溶性を有するヒドロキシカルボン酸高級アルキルエステル３〜３０重量部とを含むので、濡れた皮膚への良好な接着性と乾燥した皮膚への接着力及び凝集力のバランスが良好で且つ使用基材（材料）の制限無い。 The pressure-sensitive adhesive tape of the present invention has a pressure-sensitive adhesive layer of 100 parts by weight of a (meth) acrylic acid ester polymer and 3 to 30 weights of a hydroxycarboxylic acid higher alkyl ester having compatibility with the (meth) acrylic acid ester polymer. Therefore, the balance between good adhesion to wet skin, adhesion to dry skin, and cohesion is good, and there is no limitation on the substrate (material) used.
そして、基材に沿って積層された粘着剤層を備え、粘着剤層が、基材に対する粘着剤層の占有塗工面積率が７０〜９８％になるように規則的に基材に部分塗工されている構成とすれば、高い透湿性を有すると共に、貼付後発汗による蒸れ・かゆみを極限まで低下した医療用貼付製品として好適に使用しうる。 And it is equipped with the adhesive layer laminated | stacked along the base material, and the adhesive layer regularly coats a base material so that the occupation area ratio of the adhesive layer with respect to a base material may be 70 to 98%. If it is constructed, it can be suitably used as a medical patch product that has high moisture permeability and has reduced the stuffiness and itching due to perspiration after sticking.
また、圧着圧力８０ｇ／ｃｍ２で皮膚に粘着剤層を圧着させたとき、５０ｍｍ×５０ｍｍの貼付面積当たりの皮膚に接する粘着剤の総面積が、貼付面積の５０〜９５％になるように粘着剤層表面が凹凸に形成されている構成とすれば、高い透湿性を有すると共に、貼付後発汗による蒸れ・かゆみを極限まで低下した医療用貼付製品として好適に使用しうる。 Further, when the pressure-sensitive adhesive layer is pressure-bonded to the skin at a pressure bonding pressure of 80 g / cm 2, the pressure-sensitive adhesive is such that the total area of the pressure-sensitive adhesive contacting the skin per 50 mm × 50 mm sticking area is 50 to 95% of the sticking area. If the surface of the layer is formed with irregularities, it can be suitably used as a medical patch product having high moisture permeability and reduced stuffiness and itching due to perspiration after sticking.
以下、実施例を挙げて本発明をより詳しく説明する。なお、本発明は以下の実施例に限
定されるものではない。
Hereinafter, the present invention will be described in more detail with reference to examples. In addition, this invention is not limited to a following example.
（実施例１）
（粘着剤溶液の製造）
不活性ガス雰囲気下でアクリル酸２エチルヘキシル７０重量部とアクリル酸５重量部とアクリル酸２メトキシメチル（商品名アクリックスＣ１：東亜合成社製）２０重量部を酢酸エチル中で共重合し（メタ）アクリル酸エステル系重合体を得たのち、さらに酢酸エチルを用いて粘度調整を行った。この溶液の固形分である（メタ）アクリル酸エステル系重合体１００重量部に対し、ヒドロキシカルボン酸高級アルキルエステルとしての乳酸オクチルドデシル１０重量部、２官能エポキシ化合物を０．５重量部加え、混合し粘着剤溶液を得た。
Example 1
(Manufacture of adhesive solution)
Under an inert gas atmosphere, 70 parts by weight of 2-ethylhexyl acrylate, 5 parts by weight of acrylic acid, and 20 parts by weight of 2-methoxymethyl acrylate (trade name Acrix C1: manufactured by Toagosei Co., Ltd.) were copolymerized in ethyl acetate (meta ) After obtaining an acrylic ester polymer, the viscosity was further adjusted using ethyl acetate. 10 parts by weight of octyldodecyl lactate as a higher alkyl ester of hydroxycarboxylic acid and 0.5 parts by weight of a bifunctional epoxy compound are added to 100 parts by weight of a (meth) acrylic acid ester polymer, which is the solid content of this solution, and mixed. A pressure-sensitive adhesive solution was obtained.
（部分塗工／パターンコーティング）
得られた粘着剤溶液をリバースコーターに条線状のナイフを取り付けて塗布し、乾燥後の厚みが６０μｍ、粘着剤層の占有塗工率が９５％となるよう５０μｍ厚みのポリエステル製セパレーターに塗工し、ギアオーブンにて１００℃５分間乾燥後、坪量１００ｇのポリエステル不織布にラミネートし粘着テープを得た。
(Partial coating / pattern coating)
Apply the resulting adhesive solution to a reverse coater with a striped knife attached, and apply it to a 50 μm thick polyester separator so that the thickness after drying is 60 μm and the adhesive coating ratio of the adhesive layer is 95%. And dried in a gear oven at 100 ° C. for 5 minutes, and then laminated on a polyester nonwoven fabric having a basis weight of 100 g to obtain an adhesive tape.
（実施例２）
アクリル酸セロソロブ５３重量部、アクリル酸ラウリル４２重量部、アクリル酸２メトキシメチル５重量部を共重合し、粘着剤層の占有塗工率を８５％にした以外は実施例１と同様にして粘着テープを得た。
(Example 2)
Adhesion was carried out in the same manner as in Example 1 except that 53 parts by weight of cellosolve acrylate, 42 parts by weight of lauryl acrylate, and 5 parts by weight of 2 methoxymethyl acrylate were copolymerized and the occupying coating rate of the adhesive layer was 85%. I got a tape.
（実施例３）
乳酸オクチルドデシルに替えて、リンゴ酸ジイソステアリルを１０重量部にした以外は実施例１と同様に粘着テープを得た。
(Example 3)
An adhesive tape was obtained in the same manner as in Example 1 except that 10 parts by weight of diisostearyl malate was used instead of octyldodecyl lactate.
（実施例４）
粘着剤層の占有塗工率を９９％にした以外は実施例１と同様に粘着テープを得た。
Example 4
An adhesive tape was obtained in the same manner as in Example 1 except that the occupation ratio of the adhesive layer was 99%.
（比較例１）
乳酸オクチルドデシルを用いなかった以外は実施例１と同様に粘着テープを得た。
(Comparative Example 1)
An adhesive tape was obtained in the same manner as in Example 1 except that octyl dodecyl lactate was not used.
（比較例２）
乳酸オクチルドデシルを４０重量部とした以外は実施例１と同様に粘着テープを得た。
(Comparative Example 2)
An adhesive tape was obtained in the same manner as in Example 1 except that 40 parts by weight of octyl dodecyl lactate was used.
実施例１〜３、比較例１〜３で得られた粘着テープについて、下記の試験を行なった。結果を表１に示す。 The following test was done about the adhesive tape obtained in Examples 1-3 and Comparative Examples 1-3. The results are shown in Table 1.
（評価方法）
接着力の測定に用いた側定機及び試験条件は下記のとおりである。
試験装置 荷重計付き引張試験機（ストログラフ）
・引張速度 ３００ｍｍ／ｍｉｎ
・引張角度 １８０°、試料数 各３
・測定は２３℃、６５％ＲＨ（恒温恒湿）環境下で行った。
(Evaluation methods)
The measuring machine and test conditions used for measuring the adhesive strength are as follows.
Test device Tensile tester with load cell (strograph)
・ Tensile speed 300mm / min
・ Tensile angle 180 °, 3 samples each
Measurement was performed in an environment of 23 ° C. and 65% RH (constant temperature and humidity).
（１）対ＢＰ板接着力
上記粘着テープから試験片の長さ方向と粘着剤の塗布方向が一致するように幅２０ｍｍ、長さ１５０ｍｍの試験片を作成した。ベークライト板（ＢＰ板）を＃３２０サンドペーパーにて長さ方向に片道１０回研磨後、アルコールにて充分洗浄する。アルコール処理後、アルコールが充分乾燥したＢＰ板に粘着テープを貼付、１ｋｇローラーにて１往復圧着し３０秒後の粘着力を測定し乾燥時の接着力とした。
(1) Adhesive force to BP plate A test piece having a width of 20 mm and a length of 150 mm was prepared so that the length direction of the test piece and the application direction of the pressure-sensitive adhesive coincided with each other from the pressure-sensitive adhesive tape. A bakelite plate (BP plate) is polished 10 times in one direction in the length direction with # 320 sandpaper and then thoroughly washed with alcohol. After the alcohol treatment, an adhesive tape was applied to a BP plate in which alcohol was sufficiently dried, and the adhesive strength after 30 seconds was measured by pressing and reciprocating once with a 1 kg roller.
上記アルコール分処理後、ＢＰ板をイオン交換水に１０分以上浸けておく。イオン交換水中からＢＰ板を引き上げ、濡れた面にテープを貼付、１ｋｇローラーにて１往復圧着し、３０秒後の接着力を測定し水濡れ時の接着力とした。 After the alcohol treatment, the BP plate is immersed in ion exchange water for 10 minutes or more. The BP plate was pulled up from the ion-exchanged water, the tape was applied to the wet surface, and one reciprocal pressure was applied with a 1 kg roller, and the adhesive strength after 30 seconds was measured to determine the adhesive strength when wet.
上記の接着力もちいて、水濡れ面の接着率＝水濡れ時の接着力／乾燥時の接着力×１００（％）として、水濡れ面の接着率を算出した。 Using the above adhesive strength, the adhesion rate of the wetted surface was calculated as follows: Adhesion rate of the wetted surface = adhesive strength when wetted / adhesive force when dried × 100 (%).
（２）対皮膚接着力
上記と同様に試験片を作成し、被着体は前腕前面皮膚を用いた。貼付前にアルコールを浸けたガーゼにて被着体の汗、皮脂を除去し、アルコールが充分乾燥した後に皮膚にテープを貼付、１ｋｇローラーにて１往復圧着し３０秒後の粘着力を測定し、乾燥時の接着力とした。
(2) Adhesion to skin A test piece was prepared in the same manner as described above, and the forearm front skin was used as the adherend. Remove the sweat and sebum from the adherend with gauze soaked in alcohol before application, and after the alcohol has dried sufficiently, apply the tape to the skin and press it once with a 1kg roller, and measure the adhesive strength after 30 seconds. It was set as the adhesive force at the time of drying.
上記アルコール処理後、アルコールが充分乾燥した皮膚にイオン交換水を浸けたキムワイプにて、皮膚をしめらせ、濡れた面にテープを貼付、１ｋｇローラーにて１往復圧着し、３０秒後の接着力を測定し水濡れ時の接着力とした。 After the above alcohol treatment, the skin is fully dried with a Kimwipe dipped in ion-exchanged water, the skin is squeezed, tape is applied to the wet surface, and 1 reciprocating pressure is applied with a 1 kg roller. Was measured as the adhesive strength when wet.
上記の接着力もちいて、水濡れ面の接着率＝水濡れ時の接着力／乾燥時の接着力×１００（％）として水濡れ面の接着率を算出した。 Using the above adhesive strength, the adhesion rate of the wetted surface was calculated as follows: Adhesion rate of the wetted surface = adhesive force when wetted / adhesive force when dried × 100 (%).
（３）透湿度
実施例１〜３、比較例１〜３で得られた粘着テープについて、ＪＩＳ Ｚ０２０８（カップ法）に準じて透湿度を測定した。
(3) Moisture permeability For the adhesive tapes obtained in Examples 1 to 3 and Comparative Examples 1 to 3, moisture permeability was measured according to JIS Z0208 (cup method).
表１から明らかなように本発明の粘着テープは比較例と比べ、濡れた皮膚への良好な接着性を有し、かつ、乾燥した皮膚への粘着力及び凝集力のバランスが優れているとともに透湿性がめざましく向上することが判明した。 As is clear from Table 1, the pressure-sensitive adhesive tape of the present invention has better adhesion to wet skin than the comparative example, and has an excellent balance of adhesive strength and cohesive strength to dry skin. It has been found that the moisture permeability is remarkably improved.
（実施例５）
上記実施例１と同様にして粘着剤溶液を得たのち、得られた溶液を、高さが０．１ｍｍ、断面積が０.７８５ｍｍ2の突起が１００ｍｍ2あたり、３８個設けられたエンボスロールにより凹凸加工を施した離型紙に乾燥後の厚みが６０μｍとなるように塗工した。その後、ギアオーブンにて１００℃５分間乾燥後、基材としての坪量１００ｇのポリエステル不織布に得られた粘着剤層をラミネートし粘着テープを得た。
(Example 5)
After obtaining an adhesive solution in the same manner as in Example 1, the resulting solution, height 0.1 mm, is per 100 mm 2 cross-sectional area protrusions 0.785 mm 2, 38 pieces provided embossing roll Was applied to the release paper that had been subjected to unevenness processing so that the thickness after drying was 60 μm. Then, after drying for 5 minutes at 100 ° C. in a gear oven, the pressure-sensitive adhesive layer obtained was laminated on a polyester nonwoven fabric having a basis weight of 100 g as a base material to obtain an adhesive tape.
（実施例６）
上記実施例２と同様にして粘着剤溶液を得たのち、得られた溶液を、高さが０．１ｍｍ、断面積が０.２８３ｍｍ2の突起が１００ｍｍ2あたり、１７個設けられたエンボスロールにより凹凸加工を施した離型紙に乾燥後の厚みが６０μｍとなるように塗工した。その後、ギアオーブンにて１００℃５分間乾燥後、基材としての坪量１００ｇのポリエステル不織布に得られた粘着剤層をラミネートし粘着テープを得た。
(Example 6)
After obtaining an adhesive solution in the same manner as in Example 2, the resulting solution, height 0.1 mm, is per 100 mm 2 cross-sectional area protrusions 0.283Mm 2, 17 pieces provided embossing roll Was applied to the release paper that had been subjected to unevenness processing so that the thickness after drying was 60 μm. Then, after drying for 5 minutes at 100 ° C. in a gear oven, the pressure-sensitive adhesive layer obtained was laminated on a polyester nonwoven fabric having a basis weight of 100 g as a base material to obtain an adhesive tape.
（実施例７）
上記実施例３と同様にして粘着剤溶液を得たのち、得られた溶液を、高さが０．１ｍｍ、断面積が１０ｍｍ2の突起が１００ｍｍ2あたり、２個設けられたエンボスロールにより凹凸加工を施した離型紙に乾燥後の厚みが６０μｍとなるように塗工した。その後、ギアオーブンにて１００℃５分間乾燥後、基材としての坪量１００ｇのポリエステル不織布に得られた粘着剤層をラミネートし粘着テープを得た。
(Example 7)
After obtaining an adhesive solution in the same manner as in Example 3, the resulting solution, height 0.1 mm, projections per 100 mm 2 of cross-sectional area 10 mm 2, the two provided embossing roll irregularities It coated so that the thickness after drying might be set to 60 micrometers on the release paper which processed. Then, after drying for 5 minutes at 100 ° C. in a gear oven, the pressure-sensitive adhesive layer obtained was laminated on a polyester nonwoven fabric having a basis weight of 100 g as a base material to obtain an adhesive tape.
上記実施例５〜７で得られた粘着テープについて、圧着圧力８０ｇ／ｃｍ2で皮膚に粘着剤層を圧着させたときの、５０ｍｍ×５０ｍｍの貼付面積当たりの皮膚に接する粘着剤の総面積の割合を求めた結果、および、上記実施例１〜４および比較例１〜３と同様にして対ＢＰ板接着力、対皮膚接着力、透湿度を調べた結果を表２に示した。
なお、粘着剤の総面積の割合は、離型紙の突起以外の部分の面積、すなわち、離型紙の凹部分の面積割合とした。因みに、実施例５では、（100−0.785×38）=70.17（%）、約７０．２％となる。
About the pressure-sensitive adhesive tape obtained in Examples 5 to 7, the total area of the pressure-sensitive adhesive in contact with the skin per 50 mm × 50 mm applied area when the pressure-sensitive adhesive layer was pressure-bonded to the skin with a pressure of 80 g / cm 2 . Table 2 shows the results of determining the ratio and the results of examining the adhesion to the BP plate, the adhesion to the skin, and the moisture permeability in the same manner as in Examples 1 to 4 and Comparative Examples 1 to 3.
The ratio of the total area of the pressure sensitive adhesive was the area of the part other than the protrusion of the release paper, that is, the area ratio of the concave part of the release paper. Incidentally, in Example 5, (100−0.785 × 38) = 70.17 (%), which is about 70.2%.
Claims (7)
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| JP2005170699A JP2006297046A (en) | 2004-12-20 | 2005-06-10 | Pressure-sensitive adhesive tape and first-aid adhesive plaster |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2008167787A (en) * | 2007-01-09 | 2008-07-24 | Nitto Denko Corp | Adhesive agent composition for adhering to skin and skin adhesive material |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2008167787A (en) * | 2007-01-09 | 2008-07-24 | Nitto Denko Corp | Adhesive agent composition for adhering to skin and skin adhesive material |
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