JP6417823B2 - Adhesive film for emergency bandage and emergency bandage using the same - Google Patents
Adhesive film for emergency bandage and emergency bandage using the same Download PDFInfo
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- JP6417823B2 JP6417823B2 JP2014196283A JP2014196283A JP6417823B2 JP 6417823 B2 JP6417823 B2 JP 6417823B2 JP 2014196283 A JP2014196283 A JP 2014196283A JP 2014196283 A JP2014196283 A JP 2014196283A JP 6417823 B2 JP6417823 B2 JP 6417823B2
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- 239000002313 adhesive film Substances 0.000 title claims description 21
- 239000010419 fine particle Substances 0.000 claims description 37
- 239000000853 adhesive Substances 0.000 claims description 33
- 230000001070 adhesive effect Effects 0.000 claims description 33
- 239000004820 Pressure-sensitive adhesive Substances 0.000 claims description 28
- 239000000463 material Substances 0.000 claims description 15
- 239000010410 layer Substances 0.000 claims description 12
- 238000010521 absorption reaction Methods 0.000 claims description 9
- 229920001971 elastomer Polymers 0.000 claims description 9
- 239000000806 elastomer Substances 0.000 claims description 8
- 229920002725 thermoplastic elastomer Polymers 0.000 claims description 8
- 239000012790 adhesive layer Substances 0.000 claims description 6
- 229910052751 metal Inorganic materials 0.000 claims description 6
- 239000002184 metal Substances 0.000 claims description 6
- 239000011347 resin Substances 0.000 claims description 6
- 229920005989 resin Polymers 0.000 claims description 6
- 239000004952 Polyamide Substances 0.000 claims description 3
- 125000000524 functional group Chemical group 0.000 claims description 3
- 125000002887 hydroxy group Chemical group [H]O* 0.000 claims description 3
- 229920002647 polyamide Polymers 0.000 claims description 3
- 229920000728 polyester Polymers 0.000 claims description 3
- 229920000642 polymer Polymers 0.000 claims description 3
- 229920003225 polyurethane elastomer Polymers 0.000 claims description 3
- LSNNMFCWUKXFEE-UHFFFAOYSA-M Bisulfite Chemical compound OS([O-])=O LSNNMFCWUKXFEE-UHFFFAOYSA-M 0.000 claims description 2
- 150000001732 carboxylic acid derivatives Chemical class 0.000 claims description 2
- 239000011505 plaster Substances 0.000 claims description 2
- 230000035699 permeability Effects 0.000 description 16
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 9
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 6
- 238000000034 method Methods 0.000 description 5
- 239000000203 mixture Substances 0.000 description 5
- 239000004745 nonwoven fabric Substances 0.000 description 5
- 239000002245 particle Substances 0.000 description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- OAKJQQAXSVQMHS-UHFFFAOYSA-N Hydrazine Chemical compound NN OAKJQQAXSVQMHS-UHFFFAOYSA-N 0.000 description 4
- 230000000052 comparative effect Effects 0.000 description 4
- 239000006185 dispersion Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 238000001125 extrusion Methods 0.000 description 4
- 238000003756 stirring Methods 0.000 description 4
- 229920000297 Rayon Polymers 0.000 description 3
- 239000002964 rayon Substances 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
- NLHHRLWOUZZQLW-UHFFFAOYSA-N Acrylonitrile Chemical compound C=CC#N NLHHRLWOUZZQLW-UHFFFAOYSA-N 0.000 description 2
- BAPJBEWLBFYGME-UHFFFAOYSA-N Methyl acrylate Chemical compound COC(=O)C=C BAPJBEWLBFYGME-UHFFFAOYSA-N 0.000 description 2
- 239000004433 Thermoplastic polyurethane Substances 0.000 description 2
- 206010052428 Wound Diseases 0.000 description 2
- 208000027418 Wounds and injury Diseases 0.000 description 2
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 2
- 238000000149 argon plasma sintering Methods 0.000 description 2
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 238000004132 cross linking Methods 0.000 description 2
- 238000011033 desalting Methods 0.000 description 2
- 238000000502 dialysis Methods 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 230000003301 hydrolyzing effect Effects 0.000 description 2
- 238000010030 laminating Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000178 monomer Substances 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- -1 polypropylene Polymers 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 230000029058 respiratory gaseous exchange Effects 0.000 description 2
- XFTALRAZSCGSKN-UHFFFAOYSA-M sodium;4-ethenylbenzenesulfonate Chemical compound [Na+].[O-]S(=O)(=O)C1=CC=C(C=C)C=C1 XFTALRAZSCGSKN-UHFFFAOYSA-M 0.000 description 2
- 229920002803 thermoplastic polyurethane Polymers 0.000 description 2
- 241000894006 Bacteria Species 0.000 description 1
- UXVMQQNJUSDDNG-UHFFFAOYSA-L Calcium chloride Chemical compound [Cl-].[Cl-].[Ca+2] UXVMQQNJUSDDNG-UHFFFAOYSA-L 0.000 description 1
- 229920000742 Cotton Polymers 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 206010040880 Skin irritation Diseases 0.000 description 1
- 239000003522 acrylic cement Substances 0.000 description 1
- 238000000071 blow moulding Methods 0.000 description 1
- 239000001110 calcium chloride Substances 0.000 description 1
- 229910001628 calcium chloride Inorganic materials 0.000 description 1
- 150000007942 carboxylates Chemical class 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000010227 cup method (microbiological evaluation) Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 230000007794 irritation Effects 0.000 description 1
- 238000004898 kneading Methods 0.000 description 1
- 210000003127 knee Anatomy 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 239000003505 polymerization initiator Substances 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 229920000346 polystyrene-polyisoprene block-polystyrene Polymers 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 229920000915 polyvinyl chloride Polymers 0.000 description 1
- 239000004800 polyvinyl chloride Substances 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 239000005060 rubber Substances 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 230000036556 skin irritation Effects 0.000 description 1
- 231100000475 skin irritation Toxicity 0.000 description 1
- BDHFUVZGWQCTTF-UHFFFAOYSA-M sulfonate Chemical compound [O-]S(=O)=O BDHFUVZGWQCTTF-UHFFFAOYSA-M 0.000 description 1
- 229920000247 superabsorbent polymer Polymers 0.000 description 1
- 230000008961 swelling Effects 0.000 description 1
- 239000002759 woven fabric Substances 0.000 description 1
Landscapes
- Materials For Medical Uses (AREA)
Description
本発明は、救急絆創膏用粘着フィルムおよびそれを用いた救急絆創膏に関する。さらに詳しくは、本発明は、透湿性と防水性を兼ね備えた、皮膚のムレのない救急絆創膏用粘着フィルムおよびそれを用いた救急絆創膏に関する。 The present invention relates to an adhesive film for an emergency bandage and an emergency bandage using the same. More specifically, the present invention relates to a pressure-sensitive adhesive film for emergency adhesive bandage that has both moisture permeability and waterproofness and has no skin stuffiness, and an emergency adhesive bandage using the same.
従来、指などの小さな傷や、肘、膝などのすり傷の保護材として救急絆創膏が、医療機関や一般家庭の必需品として広く普及している。救急絆創膏は、従来から、粘着剤層を有するフィルムの中央にガーゼや不織布などのパッド材を粘着したものが用いられている。 Conventionally, an emergency bandage has been widely used as a necessity for medical institutions and general households as a protective material for small wounds such as fingers and scratches such as elbows and knees. Conventionally, an adhesive bandage in which a pad material such as gauze or non-woven fabric is adhered to the center of a film having an adhesive layer has been used.
しかしながら、従来の絆創膏は、ポリ塩化ビニル、ポリプロピレン、ポリエチレン等のフィルムが用いられているため、皮膚に貼付したときに皮膚呼吸を妨げてムレを生じる問題があった。そのため、例えば、フィルムに多数の小孔を設ける方法、フィルムを薄くする方法などの通気性を向上する改良がなされてきたが、パッド材の防水性が十分でなかったり、患部への貼付が容易でなかったりする問題を生じていた。 However, since the conventional adhesive bandages use films such as polyvinyl chloride, polypropylene, and polyethylene, there is a problem that the skin respiration is disturbed when applied to the skin. Therefore, for example, improvements have been made to improve air permeability, such as a method of providing a large number of small holes in the film, a method of thinning the film, etc., but the waterproofness of the pad material is not sufficient, or it can be easily applied to the affected area It was not a problem.
一方、粘着剤層の通気性を改善する方法が検討され、例えば特許文献１では、通気性向上剤として高吸水性ポリマ−を分散させたアクリル系粘着剤層を設けた絆創膏が提案されている。しかし、特許文献１の絆創膏は、粘着剤層の通気性向上剤により皮膚のムレはやや改善するにすぎず、皮膚のムレの問題は根本的に解決できるものではなかった。したがって、従来の救急絆創膏では、パッド材への防水性を保持しながら皮膚のムレを十分に防止したものは得られていないのが現状である。 On the other hand, a method for improving the air permeability of the pressure-sensitive adhesive layer has been studied. For example, Patent Document 1 proposes an adhesive bandage provided with an acrylic pressure-sensitive adhesive layer in which a superabsorbent polymer is dispersed as a gas permeability improver. . However, the adhesive bandage of Patent Document 1 only slightly improves the skin stuffiness due to the air permeability improver of the pressure-sensitive adhesive layer, and the problem of skin stuffiness cannot be fundamentally solved. Therefore, in the present emergency adhesive bandage, the thing which prevented the swelling of the skin fully was obtained, maintaining the waterproofness to a pad material.
本発明は、上記の従来技術の現状に鑑みなされたものであり、その目的は、樹脂性フィルムと粘着剤層とパッド材を積層した構成を有する救急絆創膏用フィルムにおいて、パッド材への防水性を保持しながら皮膚のムレを十分に改善したものを提供することにある。 The present invention has been made in view of the current state of the prior art described above. The purpose of the present invention is to provide a waterproof film for an emergency adhesive bandage having a configuration in which a resinous film, an adhesive layer, and a pad material are laminated. The object of the present invention is to provide a skin skin with a sufficiently improved skin moistness.
本発明者は、上記目的を達成するためにパッド材の防水性と皮膚のムレを改善する通気性を併せ持つ救急絆創膏用粘着フィルムについて鋭意検討した結果、構成材料の樹脂性フィルムを熱可塑性エラストマーによって作製し、これに吸放湿性微粒子を含有させることにより、本発明の目的を達成できることを見出し、本発明の完成に至った。 In order to achieve the above object, the present inventor has intensively studied a pressure-sensitive adhesive film for emergency adhesive plaster that has both the waterproofness of the pad material and the air permeability that improves the stuffiness of the skin. It was found that the object of the present invention can be achieved by producing and incorporating hygroscopic fine particles therein, and the present invention has been completed.
即ち、本発明は、以下の（１）〜（７）の構成を有するものである。
（１）樹脂性フィルム、樹脂性フィルムの少なくとも片面に設けられた粘着剤層、粘着剤層の少なくとも一部表面に設けられたパッド材を有する救急絆創膏用粘着フィルムにおいて、樹脂性フィルムが、熱可塑性エラストマーによって作製されたものであり、且つ吸放湿性微粒子を５〜５０重量％含有する透湿性フィルムであることを特徴とする救急絆創膏用粘着フィルム。
（２）吸放湿性微粒子が粘着剤層にも含有されていることを特徴とする（１）に記載の救急絆創膏用粘着フィルム。
（３）熱可塑性エラストマーが、ポリウレタン系エラストマー、ポリエステル系エラストマー、及びポリアミド系エラストマーからなる群から選択されることを特徴とする（１）又は（２）に記載の救急絆創膏用粘着フィルム。
（４）吸放湿性微粒子の２０℃×９５％ＲＨ条件下での吸湿率が４０〜１４０％であることを特徴とする（１）〜（３）のいずれかに記載の救急絆創膏用粘着フィルム。
（５）吸放湿性微粒子が、カルボン酸金属塩基、スルホン酸金属塩基、及び水酸基からなる群から選択される少なくとも一種の官能基を有する有機系吸放湿性微粒子であることを特徴とする（１）〜（４）のいずれかに記載の救急絆創膏用粘着フィルム。
（６）粘着剤層における吸放湿性微粒子の含有率が５〜５０重量％であることを特徴とする（２）〜（５）のいずれかに記載の救急絆創膏用粘着フィルム。
（７）（１）〜（６）のいずれかに記載の救急絆創膏用粘着フィルムを用いた救急絆創膏。
That is, the present invention has the following configurations (1) to (7).
(1) In a pressure sensitive adhesive bandage adhesive film having a resinous film, a pressure sensitive adhesive layer provided on at least one surface of the resinous film, and a pad material provided on at least a part of the pressure sensitive adhesive layer, the resinous film is heated. A pressure-sensitive adhesive film for an emergency bandage, which is made of a plastic elastomer and is a moisture-permeable film containing 5 to 50% by weight of hygroscopic fine particles.
(2) The adhesive film for emergency bandages according to (1), wherein moisture-absorbing and releasing fine particles are also contained in the adhesive layer.
(3) The adhesive film for emergency bandages according to (1) or (2), wherein the thermoplastic elastomer is selected from the group consisting of polyurethane elastomers, polyester elastomers, and polyamide elastomers.
(4) The adhesive film for emergency adhesive bandages according to any one of (1) to (3), wherein the hygroscopic fine particles have a moisture absorption rate of 40 to 140% under 20 ° C. × 95% RH condition. .
(5) The hygroscopic fine particles are organic hygroscopic fine particles having at least one functional group selected from the group consisting of a carboxylate metal base, a sulfonate metal base, and a hydroxyl group (1) The adhesive film for emergency adhesive bandages according to any one of) to (4).
(6) The adhesive film for emergency bandages according to any one of (2) to (5), wherein the content of moisture-absorbing and releasing fine particles in the adhesive layer is 5 to 50% by weight.
(7) An emergency adhesive bandage using the adhesive film for emergency adhesive bandage according to any one of (1) to (6).
本発明の救急絆創膏用粘着フィルムは、構成材料の樹脂性フィルムが熱可塑性エラストマーから作られているため、防水性及び伸縮性に優れるとともに、樹脂性フィルムが吸放湿性微粒子を含有しているため、高い多孔性を有し、結果として通気性に優れ、貼着後に皮膚のムレを生じにくい効果を有する。 The pressure-sensitive adhesive film for emergency bandage of the present invention is excellent in waterproofness and stretchability because the resin film of the constituent material is made of a thermoplastic elastomer, and the resin film contains hygroscopic fine particles. It has high porosity, and as a result, has excellent air permeability and has an effect of hardly causing skin stuffiness after sticking.
本発明の救急絆創膏用粘着フィルムは、樹脂性フィルムの片面に粘着剤層を設け、さらにこの粘着剤層面の中央に不織布のパッド材を積層した構成を有するものであり、この構成自体は従来公知である。本発明の救急絆創膏用粘着フィルムは、この構成において樹脂性フィルムを熱可塑性エラストマーによって作製されたものとし、さらにこの樹脂性フィルムに吸放湿性微粒子を含有させたことを特徴とする。 The pressure-sensitive adhesive film for emergency bandage according to the present invention has a structure in which a pressure-sensitive adhesive layer is provided on one surface of a resinous film, and a non-woven pad material is laminated at the center of the pressure-sensitive adhesive layer surface. It is. The pressure-sensitive adhesive film for emergency bandage of the present invention is characterized in that in this configuration, the resinous film is made of a thermoplastic elastomer, and the resinous film further contains moisture-absorbing and releasing fine particles.
本発明の救急絆創膏用粘着フィルムに使用される樹脂性フィルムを構成する熱可塑性エラストマーは、ポリウレタン系エラストマー、ポリエステル系エラストマー、ポリアミド系エラストマーなどから選択されることが好ましい。これらのエラストマーは、フィルムに成形したときに防水性及び伸縮性に優れる効果を有する。熱可塑性エラストマーのフィルムへの成形方法は、押出成形、ブロー成形、延伸などの従来公知の方法によって行なうことができる。樹脂性フィルムの厚さは、１５〜３００μｍが好ましく、３０〜８０μｍがさらに好ましい。 The thermoplastic elastomer constituting the resinous film used in the adhesive film for emergency bandage of the present invention is preferably selected from polyurethane elastomers, polyester elastomers, polyamide elastomers and the like. These elastomers have an effect of being excellent in waterproofness and stretchability when formed into a film. The thermoplastic elastomer can be formed into a film by a conventionally known method such as extrusion, blow molding or stretching. The thickness of the resinous film is preferably 15 to 300 μm, more preferably 30 to 80 μm.
本発明の救急絆創膏用粘着フィルムに使用される粘着剤としては、人間の皮膚に対して低刺激性で感圧粘着性を有する従来公知のものを採用すればよく、例えばポリウレタン系粘着剤、シリコン系粘着剤、アクリル系粘着剤、ゴム系粘着剤、スチレン−イソプレン−スチレン型ブロック共重合体粘着剤などが使用可能である。粘着剤は、樹脂性フィルムの片面に設けられるが、フィルムの通気性を確保するために全面ではなく部分的にパターンコーティングされることが好ましい。 As the adhesive used in the adhesive film for emergency bandage of the present invention, a conventionally known adhesive having low irritation and pressure-sensitive adhesiveness to human skin may be employed. For example, polyurethane adhesive, silicon A system adhesive, an acrylic adhesive, a rubber adhesive, a styrene-isoprene-styrene block copolymer adhesive, and the like can be used. The pressure-sensitive adhesive is provided on one side of the resinous film, but it is preferable that the adhesive is partially pattern-coated instead of the entire surface in order to ensure air permeability of the film.
本発明の救急絆創膏用粘着フィルムに使用されるパッド材としては、通気性及び伸縮性を有する従来公知のものを採用すればよく、例えば不織布、織物、編み物、又はこれらの混合物であることができる。その中でもレーヨン不織布や綿ガーゼが好ましく、特にレーヨン不織布が好ましい。パッド材の目付は、３０〜１００ｇ／ｍ２が好ましく、厚さは、５０〜５００μｍが好ましい。 As the pad material used for the adhesive film for emergency bandage of the present invention, a conventionally known material having air permeability and stretchability may be adopted, and for example, it may be a nonwoven fabric, a woven fabric, a knitted fabric, or a mixture thereof. . Among these, rayon nonwoven fabric and cotton gauze are preferable, and rayon nonwoven fabric is particularly preferable. The basis weight of the pad material is preferably 30 to 100 g / m 2 , and the thickness is preferably 50 to 500 μm.
本発明で使用される樹脂性フィルムに含有される吸放湿性微粒子としては、吸放湿性の高さの点でカルボン酸金属塩基、スルホン酸金属塩基、及び水酸基からなる群から選択される少なくとも一種の官能基を有する有機系吸放湿性微粒子であることが好ましい。吸放湿性微粒子の２０℃×９５％ＲＨ条件下での吸湿率は４０〜１４０％であることが好ましい。また、吸放湿性微粒子の２０℃×６５％ＲＨ条件下での吸湿率は２０〜１００％であることが好ましい。吸放湿性微粒子の平均粒子径は０．１〜１００μｍであることが好ましい。樹脂性フィルム中の吸放湿性微粒子は、水分を吸収すると膨張した後、その水分が蒸発することによって樹脂性フィルムに多数の通気孔を形成し、これが皮膚への貼着時のムレの抑制効果を持つ。樹脂性フィルムにおける吸放湿性微粒子の含有率は、５〜５０重量％であり、好ましくは１０〜４０重量％である。吸放湿性微粒子は、樹脂性フィルムに加えて粘着剤層にも含有させると粘着剤層が存在する部分にも同様の効果を期待できる。この場合の粘着剤層における吸放湿性微粒子の含有率は、好ましくは５〜５０重量％、より好ましくは１０〜４０重量％である。 The hygroscopic fine particles contained in the resinous film used in the present invention are at least one selected from the group consisting of a carboxylic acid metal base, a sulfonic acid metal base, and a hydroxyl group in terms of high hygroscopicity. Organic fine moisture-absorbing / releasing fine particles having the above functional group are preferred. It is preferable that the hygroscopic fine particles have a moisture absorption rate of 40 to 140% under 20 ° C. × 95% RH condition. Moreover, it is preferable that the moisture absorption rate under 20 degreeC x 65% RH conditions of a moisture absorption / release fine particle is 20 to 100%. The average particle diameter of the hygroscopic fine particles is preferably 0.1 to 100 μm. Moisture-absorbing and releasing fine particles in a resinous film expand when it absorbs water, and then the water evaporates to form a large number of air holes in the resinous film, which suppresses stuffiness when sticking to the skin. have. The content of hygroscopic fine particles in the resinous film is 5 to 50% by weight, preferably 10 to 40% by weight. When the hygroscopic fine particles are contained in the pressure-sensitive adhesive layer in addition to the resinous film, the same effect can be expected in the portion where the pressure-sensitive adhesive layer exists. In this case, the content of hygroscopic fine particles in the pressure-sensitive adhesive layer is preferably 5 to 50% by weight, more preferably 10 to 40% by weight.
本発明の樹脂性フィルムは、貫通孔を有しないフィルムである。樹脂性フィルムは、吸放湿性微粒子を特定量含有することで透湿性を有し、貫通孔を設ける必要がない。又、本発明の樹脂性フィルムは、貫通孔を設ける必要がないので、防水性も確保できる優れた特性を有する。樹脂性フィルムの透湿性としては、１１００〜２４００ｇ／ｍ２・２４ｈｒの範囲が好ましい。 The resinous film of the present invention is a film having no through hole. The resinous film has moisture permeability by containing a specific amount of moisture-absorbing / releasing fine particles, and it is not necessary to provide a through hole. Moreover, since the resinous film of the present invention does not need to be provided with a through hole, it has excellent characteristics that can ensure waterproofness. The moisture permeability of the resinous film is preferably in the range of 1100 to 2400 g / m 2 · 24 hr.
本発明の救急絆創膏用粘着フィルムは、従来公知の方法によって様々な形態の救急絆創膏に形成することができる。例えば、まず吸放湿性微粒子を熱可塑性エラストマーに添加したものを混練して、ポリマーアロイチップを得た後、これを２軸押出延伸機でフィルム化し、このフィルムの片面に粘着剤（必要により吸放湿性微粒子を添加）をコーティングすることによって、救急絆創膏用粘着フィルムを得ることができる。この救急絆創膏用粘着フィルムの粘着剤面に所定の大きさの不織布のパッド材を積層し、全体を整形することにより救急絆創膏を作成することができる。また、必要によりパッド材及び粘着剤面に離型紙を積層することができる。 The adhesive film for emergency bandages of the present invention can be formed into various forms of emergency bandages by a conventionally known method. For example, a mixture of moisture-absorbing and releasing fine particles added to a thermoplastic elastomer is kneaded to obtain a polymer alloy chip, which is then formed into a film with a biaxial extrusion stretcher, and an adhesive (if necessary, absorbing on one side of the film). An adhesive film for emergency adhesive bandage can be obtained by coating with the addition of moisture-releasing fine particles. An emergency adhesive bandage can be created by laminating a non-woven pad material of a predetermined size on the adhesive surface of the adhesive film for emergency adhesive bandage and shaping the whole. Moreover, a release paper can be laminated | stacked on a pad material and an adhesive surface as needed.
本発明の救急絆創膏用粘着フィルムの効果を実施例によって具体的に示すが、本発明はこれらに限定されるものではない。 The effect of the adhesive film for emergency bandage of the present invention is specifically shown by Examples, but the present invention is not limited thereto.
（１）防水性
室内環境下における試料表面に水０．１ｍｌを２ｃｍの高さから落とし、水を落としてから、水が試料中に完全に浸透するまでの時間（秒）を測定した。この時間が長いほど防水性が高い。
(1) Waterproofness 0.1 ml of water was dropped from a height of 2 cm onto the sample surface in an indoor environment, and the time (seconds) from when the water was dropped until the water completely penetrated into the sample was measured. The longer this time, the higher the waterproofness.
（２）透湿度
ＪＩＳ−Ｌ１０９９に準拠して、塩化カルシウムを使用し、カップ法により透湿度（ｇ／ｍ２・２４ｈｒ）を測定した。
(2) Moisture permeability In accordance with JIS-L1099, calcium chloride was used, and moisture permeability (g / m 2 · 24 hr) was measured by the cup method.
有機系吸放湿性微粒子Ａの製造
アクリロニトリル４５０重量部、アクリル酸メチル４０重量部、ｐ−スチレンスルホン酸ソーダ１６重量部、及び水１１８重量部をオートクレーブに仕込み、重合開始剤としてジーｔｅｒ−ブチルパーオキサイドを単量体全量に対して０．５重量％添加した後、密閉し、次いで攪拌下において１５０℃の温度にて２０分間重合させた。反応終了後、攪拌を継続しながら約９０℃まで冷却し、平均粒子径２μｍ（光散乱光度計で測定）の原料微粒子の水分散体を得た。この水分散体に浴中濃度が３５重量％になるようにヒドラジンを加え、１０２℃で２．５時間架橋処理を行い、続いて浴中濃度が１０重量％となるようにＮａＯＨを加え、１０２℃で６０時間の加水分解処理を行った後、流水中で透析、脱塩、乾燥し、有機系吸放湿性微粒子Ａを得た。有機系吸放湿性微粒子Ａの窒素増加量は３．３重量％、塩型カルボキシル基濃度は８．３ｍｍｏｌ／ｇ、２０℃×６５％ＲＨ条件下での吸湿率は６２％、２０℃×９５％ＲＨ条件下での吸湿率は１３２％で、平均粒子径は２μｍであった。
Production of organic moisture-absorbing / releasing fine particles A 450 parts by weight of acrylonitrile, 40 parts by weight of methyl acrylate, 16 parts by weight of sodium p-styrene sulfonate, and 118 parts by weight of water were charged in an autoclave, and Oxide was added in an amount of 0.5% by weight based on the total amount of the monomers, sealed, and polymerized at 150 ° C. for 20 minutes with stirring. After completion of the reaction, the mixture was cooled to about 90 ° C. while continuing stirring, and an aqueous dispersion of raw material fine particles having an average particle size of 2 μm (measured with a light scattering photometer) was obtained. To this aqueous dispersion, hydrazine was added so that the concentration in the bath was 35% by weight, and a crosslinking treatment was performed at 102 ° C. for 2.5 hours. Subsequently, NaOH was added so that the concentration in the bath was 10% by weight. After hydrolyzing at 60 ° C. for 60 hours, dialysis, desalting and drying were performed in running water to obtain organic moisture absorbing / releasing fine particles A. The organic hygroscopic fine particles A have an increase in nitrogen of 3.3% by weight, a salt-type carboxyl group concentration of 8.3 mmol / g, and a moisture absorption rate of 20% at 20 ° C. × 65% RH. The moisture absorption rate under the% RH condition was 132%, and the average particle size was 2 μm.
有機系吸放湿性微粒子Ｂの製造
アクリロニトリル３５０重量部、ジビニルベンゼン１５０重量部、ｐ−スチレンスルホン酸ソーダ１６重量部、及び水１１８重量部をオートクレーブに仕込み、重合開始剤としてジーｔｅｒ−ブチルパーオキサイドを単量体全量に対して０．５重量％添加した後、密閉し、次いで攪拌下において１５０℃の温度にて２０分間重合させた。反応終了後、攪拌を継続しながら約９０℃まで冷却し、平均粒子径１６μｍ（光散乱光度計で測定）の原料微粒子の水分散体を得た。この水分散体に浴中濃度が３５重量％になるようにヒドラジンを加え、１０２℃で２．５時間架橋処理を行い、続いて浴中濃度が１０重量％となるようにＮａＯＨを加え、１０２℃で５時間の加水分解処理を行った後、流水中で透析、脱塩、乾燥し、有機系吸放湿性微粒子Ｂを得た。有機系吸放湿性微粒子Ｂの窒素増加量は３．３重量％、塩型カルボキシル基濃度は３．２ｍｍｏｌ／ｇ、２０℃×６５％ＲＨ条件下での吸湿率は３２％、２０℃×９５％ＲＨ条件下での吸湿率は５３％で、平均粒子径は１８μｍであった。
Production of organic moisture-absorbing and releasing fine particles B 350 parts by weight of acrylonitrile, 150 parts by weight of divinylbenzene, 16 parts by weight of sodium p-styrenesulfonate, and 118 parts by weight of water are charged into an autoclave, and ter-butyl peroxide is used as a polymerization initiator. Was added in an amount of 0.5% by weight based on the total amount of the monomers, sealed, and then polymerized for 20 minutes at 150 ° C. with stirring. After completion of the reaction, the mixture was cooled to about 90 ° C. while continuing stirring, and an aqueous dispersion of raw material fine particles having an average particle size of 16 μm (measured with a light scattering photometer) was obtained. To this aqueous dispersion, hydrazine was added so that the concentration in the bath was 35% by weight, and a crosslinking treatment was performed at 102 ° C. for 2.5 hours. Subsequently, NaOH was added so that the concentration in the bath was 10% by weight. After hydrolyzing at 5 ° C. for 5 hours, dialysis, desalting and drying were performed in running water to obtain organic moisture absorbing / releasing fine particles B. The organic hygroscopic fine particle B has an increase in nitrogen of 3.3% by weight, a salt-type carboxyl group concentration of 3.2 mmol / g, and a moisture absorption rate of 32% at 20 ° C. × 65% RH, 20 ° C. × 95. The moisture absorption rate under the% RH condition was 53%, and the average particle size was 18 μm.
実施例１〜６、比較例１〜４
上記のようにして得られた有機系吸放湿性微粒子を表１に示す量で熱可塑性ポリウレタン（クラレ社製、「クラミロンＵ」）または熱可塑性ポリウレタン（大日精化社製、「レザミン」）に添加し、２軸押出混練機で混練した。この混練で得られたポリマーアロイチップを２軸押出延伸機（Ｔダイのギャップの長さ１２０ｍｍ、間隙の幅１ｍｍ）でフィルム加工した。押出機のシリンダー温度を、１５０〜２２０℃の間となるように樹脂の種類に応じて適宜調整した。この後、所定の厚みに押し出した直後に冷却ロールを通し、次の熱延伸ロールを通過させる際２〜８ｍ／分の回転速度範囲内で２つの延伸ロール回転比を適宜調整することで、フィルムの厚みが５０μｍのものを得た。そして、再度冷却ロールを通過させてからロール状に巻き取った。その後、有機系吸放湿性微粒子を表１に示す量でアクリル系粘着剤に添加したものを該フィルムの片面に５０μｍ膜厚でコーティング処理し、さらに粘着剤面に７０ｇ／ｍ２、厚さ１００μｍのレーヨン不織布を積層することによって各救急絆創膏用粘着フィルムを得た。
Examples 1-6, Comparative Examples 1-4
The organic moisture-absorbing / releasing fine particles obtained as described above are converted into thermoplastic polyurethane (Kuraray Co., “Curamylon U”) or thermoplastic polyurethane (Daiichi Seika Co., Ltd., “Rezamin”) in the amounts shown in Table 1. The mixture was added and kneaded with a twin-screw extrusion kneader. The polymer alloy chip obtained by this kneading was processed into a film by a biaxial extrusion stretching machine (T-die gap length 120 mm, gap width 1 mm). The cylinder temperature of the extruder was appropriately adjusted according to the type of resin so as to be between 150 and 220 ° C. Thereafter, the film is adjusted by appropriately adjusting the rotation ratio of the two drawing rolls within a rotation speed range of 2 to 8 m / min when passing through the cooling roll immediately after being extruded to a predetermined thickness and passing the next hot drawing roll. A thickness of 50 μm was obtained. And after making it pass a cooling roll again, it wound up in roll shape. Thereafter, an organic moisture-absorbing / releasing fine particle added to the acrylic pressure-sensitive adhesive in the amount shown in Table 1 was coated on one side of the film with a film thickness of 50 μm, and the pressure-sensitive adhesive surface was further 70 g / m 2 , thickness 100 μm. Each pressure-sensitive adhesive film for emergency adhesive bandage was obtained by laminating the non-woven fabric of rayon.
実施例１〜６、比較例１〜４の救急絆創膏用粘着フィルムの詳細と評価結果を表１に示す。 The details and evaluation results of the adhesive films for emergency bandages of Examples 1 to 6 and Comparative Examples 1 to 4 are shown in Table 1.
表１の結果から明らかなように、実施例１〜６の救急絆創膏用粘着フィルムは、透湿度と防水性がともに高いレベルを達成しているのに対して、比較例１〜２，４は透湿度に劣り、比較例３は防水性に劣る問題があった。 As is clear from the results in Table 1, the adhesive films for emergency adhesive bandages of Examples 1 to 6 achieved high levels of moisture permeability and waterproofness, whereas Comparative Examples 1 to 2 and 4 were The moisture permeability was inferior, and Comparative Example 3 had a problem inferior in waterproofness.
本発明の救急絆創膏用粘着フィルムによれば、防水性と透湿性の両方を高度に達成しているので、これを使用した救急絆創膏は、水分や細菌の侵入を防止しながら、皮膚呼吸を妨げず、皮膚のムレなどの皮膚刺激を効果的に抑制することができる。 According to the pressure-sensitive adhesive film for emergency bandage of the present invention, both waterproofness and moisture permeability are achieved to a high degree, so the emergency bandage using this prevents skin and breathing while preventing moisture and bacteria from entering. Therefore, skin irritation such as skin stuffiness can be effectively suppressed.
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| JPH0833673A (en) * | 1994-03-14 | 1996-02-06 | Johnson & Johnson Kk | Tacky adhesive film for first-and adhesive plaster and first-aid adhesive plaster using the same film |
| JP3650977B2 (en) * | 1994-12-13 | 2005-05-25 | 日本エクスラン工業株式会社 | Highly moisture-absorbing / releasing material, method for producing the same, and additive comprising the material |
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