JPH03200885A - Pressure-sensitive adhesive tape and material for protecting wounded surface - Google Patents
Pressure-sensitive adhesive tape and material for protecting wounded surfaceInfo
- Publication number
- JPH03200885A JPH03200885A JP34294789A JP34294789A JPH03200885A JP H03200885 A JPH03200885 A JP H03200885A JP 34294789 A JP34294789 A JP 34294789A JP 34294789 A JP34294789 A JP 34294789A JP H03200885 A JPH03200885 A JP H03200885A
- Authority
- JP
- Japan
- Prior art keywords
- pressure
- sensitive adhesive
- adhesive tape
- nonwoven fabric
- adhesive layer
- 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.)
- Granted
Links
- 239000004820 Pressure-sensitive adhesive Substances 0.000 title claims abstract description 82
- 239000000463 material Substances 0.000 title claims abstract description 31
- 239000004745 nonwoven fabric Substances 0.000 claims abstract description 40
- 239000012790 adhesive layer Substances 0.000 claims abstract description 28
- 230000035699 permeability Effects 0.000 claims abstract description 19
- 229920001296 polysiloxane Polymers 0.000 claims abstract description 19
- 238000011084 recovery Methods 0.000 claims abstract description 8
- 238000005452 bending Methods 0.000 claims abstract description 6
- 229920002635 polyurethane Polymers 0.000 claims description 14
- 239000004814 polyurethane Substances 0.000 claims description 14
- 210000004177 elastic tissue Anatomy 0.000 claims description 11
- 238000010030 laminating Methods 0.000 claims description 2
- 229920001971 elastomer Polymers 0.000 abstract description 7
- 239000004433 Thermoplastic polyurethane Substances 0.000 abstract description 5
- 239000000806 elastomer Substances 0.000 abstract description 5
- 229920002803 thermoplastic polyurethane Polymers 0.000 abstract description 5
- 239000011248 coating agent Substances 0.000 abstract description 3
- 238000000576 coating method Methods 0.000 abstract description 3
- 239000010410 layer Substances 0.000 abstract description 3
- 229920006306 polyurethane fiber Polymers 0.000 abstract 2
- 238000002074 melt spinning Methods 0.000 abstract 1
- 239000002390 adhesive tape Substances 0.000 description 12
- 239000000853 adhesive Substances 0.000 description 11
- 230000001070 adhesive effect Effects 0.000 description 11
- 230000000052 comparative effect Effects 0.000 description 7
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 230000000704 physical effect Effects 0.000 description 6
- 230000008602 contraction Effects 0.000 description 5
- 239000004744 fabric Substances 0.000 description 5
- 239000000123 paper Substances 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 229920000742 Cotton Polymers 0.000 description 4
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 4
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 description 4
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 3
- 239000003795 chemical substances by application Substances 0.000 description 3
- 239000002537 cosmetic Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000002904 solvent Substances 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- -1 bandages Substances 0.000 description 2
- 238000010292 electrical insulation Methods 0.000 description 2
- 150000001451 organic peroxides Chemical class 0.000 description 2
- 239000003960 organic solvent Substances 0.000 description 2
- 239000005060 rubber Substances 0.000 description 2
- 229920002050 silicone resin Polymers 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- JVJVAVWMGAQRFN-UHFFFAOYSA-N 1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,8-heptadecafluorooctyl 2-methylprop-2-enoate Chemical compound CC(=C)C(=O)OC(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)F JVJVAVWMGAQRFN-UHFFFAOYSA-N 0.000 description 1
- XMNIXWIUMCBBBL-UHFFFAOYSA-N 2-(2-phenylpropan-2-ylperoxy)propan-2-ylbenzene Chemical compound C=1C=CC=CC=1C(C)(C)OOC(C)(C)C1=CC=CC=C1 XMNIXWIUMCBBBL-UHFFFAOYSA-N 0.000 description 1
- UPMLOUAZCHDJJD-UHFFFAOYSA-N 4,4'-Diphenylmethane Diisocyanate Chemical compound C1=CC(N=C=O)=CC=C1CC1=CC=C(N=C=O)C=C1 UPMLOUAZCHDJJD-UHFFFAOYSA-N 0.000 description 1
- 239000004342 Benzoyl peroxide Substances 0.000 description 1
- OMPJBNCRMGITSC-UHFFFAOYSA-N Benzoylperoxide Chemical compound C=1C=CC=CC=1C(=O)OOC(=O)C1=CC=CC=C1 OMPJBNCRMGITSC-UHFFFAOYSA-N 0.000 description 1
- 229920003043 Cellulose fiber Polymers 0.000 description 1
- JIGUQPWFLRLWPJ-UHFFFAOYSA-N Ethyl acrylate Chemical compound CCOC(=O)C=C JIGUQPWFLRLWPJ-UHFFFAOYSA-N 0.000 description 1
- 208000010201 Exanthema Diseases 0.000 description 1
- 206010028347 Muscle twitching Diseases 0.000 description 1
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 description 1
- 206010040880 Skin irritation Diseases 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- 125000002947 alkylene group Chemical group 0.000 description 1
- 239000002635 aromatic organic solvent Substances 0.000 description 1
- 235000019400 benzoyl peroxide Nutrition 0.000 description 1
- 125000004432 carbon atom Chemical group C* 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000036461 convulsion Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 230000002596 correlated effect Effects 0.000 description 1
- 238000002788 crimping Methods 0.000 description 1
- 125000005442 diisocyanate group Chemical group 0.000 description 1
- 150000002009 diols Chemical class 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000004049 embossing Methods 0.000 description 1
- 201000005884 exanthem Diseases 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000007794 irritation Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 208000035824 paresthesia Diseases 0.000 description 1
- PNJWIWWMYCMZRO-UHFFFAOYSA-N pent‐4‐en‐2‐one Natural products CC(=O)CC=C PNJWIWWMYCMZRO-UHFFFAOYSA-N 0.000 description 1
- 125000005010 perfluoroalkyl group Chemical group 0.000 description 1
- 239000002985 plastic film Substances 0.000 description 1
- 229920006255 plastic film Polymers 0.000 description 1
- 229920001515 polyalkylene glycol Polymers 0.000 description 1
- 229920003225 polyurethane elastomer Polymers 0.000 description 1
- 229920006264 polyurethane film Polymers 0.000 description 1
- 230000001012 protector Effects 0.000 description 1
- 206010037844 rash Diseases 0.000 description 1
- 230000002940 repellent Effects 0.000 description 1
- 239000005871 repellent Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 238000007665 sagging Methods 0.000 description 1
- 230000035807 sensation Effects 0.000 description 1
- 230000036556 skin irritation Effects 0.000 description 1
- 231100000475 skin irritation Toxicity 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 210000004243 sweat Anatomy 0.000 description 1
- 230000035900 sweating Effects 0.000 description 1
- 230000008961 swelling Effects 0.000 description 1
- 238000010345 tape casting Methods 0.000 description 1
- 229920001187 thermosetting polymer Polymers 0.000 description 1
- 239000002759 woven fabric Substances 0.000 description 1
- 230000037303 wrinkles Effects 0.000 description 1
- 239000008096 xylene Substances 0.000 description 1
Landscapes
- Laminated Bodies (AREA)
- Adhesive Tapes (AREA)
- Adhesives Or Adhesive Processes (AREA)
Abstract
Description
［産業上の利用分野］
本発明は感圧粘着テープおよび創傷面保護材に関する。
さらに詳しくは、通気性および伸縮性にすぐれ、医療用
粘着テープ、化粧用粘着テープなどとして好適に使用し
うる感圧粘着テープおよび該感圧粘着テープを用いてな
る創傷面保護材に関する。
［従来の技術］
近年、絆創膏などの医療用粘着テープ、化粧用粘着テー
プなどとして用いられる感圧粘着テープには種々の素材
からなるものが開発されており、なかでもたとえば特公
昭５７−５６５０９号公報ムどに記載された基材上にオ
ルガノポリシロキサンとアルキルアリールポリシロキサ
ン生ゴムを含有した粘着剤を積層した粘着シートは、耐
熱性、耐水性、耐寒性などにすぐれたものとして注目さ
れている。
しかしながら、前記粘着シートの基材には樹脂シートが
用いられているため、該粘着シートは伸縮性および通気
性に劣るものであった。
また、前記粘着シートの基材の伸縮性を改善しつるシー
トとして基材自体が伸縮性を有するシート（実公昭５５
−１８２７号公報）や基材に凹凸状の縮み模様を付与し
たシート（特公昭４８−２８３８７号公報）などがある
が、これらのシートはいずれも通気性に劣るものであっ
た。
そこで、本発明者は、前記粘着シートの伸縮性および通
気性が改良された粘着シートとして極薄感圧粘着テープ
を見出し、先に特許出願をしている（特開昭８２−１７
６８３９号公報）。
［発明が解決しようとする課題］
前記極薄感圧粘着テープは、確かに従来の粘着シートよ
りも伸縮性および通気性にすぐれたものである。
しかしながら、粘着テープの基材としてフィルムが用い
られているため、たとえば夏季などのように高温期に長
時間皮膚に貼付したばあいには、皮膚がむれることかあ
り、また人体の関節部などのように大きな伸縮性が要求
される箇所に貼付したときには、伸縮時に粘着テープが
ずれ動いたり、粘着テープが皮膚から剥離して浮きが生
じることがある。
そこで本発明者は、前記極薄感圧粘着テープに着目し、
さらに通気性および伸縮性にすぐれた感圧粘着テープを
開発するべく鋭意研究を重ねたところ、感圧粘着テープ
の基材としてポリウレタン弾性繊維からなる不織布を用
いたばあいには、前記極薄感圧粘着テープよりも通気性
がはるかに向上し、高温期において使用したばあいでも
むれなどの発生がなく、しかも人体の関節部などに貼付
し、関節部を伸縮させたばあいでも皮膚の伸縮に追随す
るので皮膚から剥離したり、ずれ動くことがなく、さら
に関節部などを伸縮させたときに皮膚にひきつり感を与
えないという前記極薄感圧粘着テープの欠点がことごと
く解消されることを初めて見出し、本発明を完成するに
いたった。[Industrial Field of Application] The present invention relates to a pressure-sensitive adhesive tape and a wound surface protection material. More specifically, the present invention relates to a pressure-sensitive adhesive tape that has excellent air permeability and elasticity and can be suitably used as a medical adhesive tape, a cosmetic adhesive tape, etc., and a wound surface protection material using the pressure-sensitive adhesive tape. [Prior Art] In recent years, pressure-sensitive adhesive tapes made of various materials have been developed for use as medical adhesive tapes such as bandages, cosmetic adhesive tapes, etc. Among them, for example, Japanese Patent Publication No. 57-56509 The adhesive sheet, which is made by laminating an adhesive containing organopolysiloxane and alkylarylpolysiloxane raw rubber on the base material described in the publication, is attracting attention as having excellent heat resistance, water resistance, cold resistance, etc. . However, since a resin sheet is used as the base material of the adhesive sheet, the adhesive sheet has poor elasticity and air permeability. In addition, by improving the elasticity of the base material of the pressure-sensitive adhesive sheet, a sheet in which the base material itself has elasticity can be used as a vine sheet (1983).
1827 (Japanese Patent Publication No. 1827) and a sheet in which the base material is provided with an uneven shrinkage pattern (Japanese Patent Publication No. 48-28387), all of these sheets had poor air permeability. Therefore, the present inventor discovered an ultra-thin pressure-sensitive adhesive tape as an adhesive sheet with improved elasticity and air permeability, and previously filed a patent application (Japanese Patent Laid-Open No. 82-17
Publication No. 6839). [Problems to be Solved by the Invention] The ultra-thin pressure-sensitive adhesive tape certainly has better elasticity and air permeability than conventional adhesive sheets. However, since a film is used as the base material of the adhesive tape, if it is applied to the skin for a long period of time during high temperatures such as summer, the skin may peel, and it may cause irritation to the joints of the human body. When applied to areas that require great elasticity, such as areas where a large degree of elasticity is required, the adhesive tape may shift during expansion or contraction, or the adhesive tape may peel off from the skin and float. Therefore, the present inventor focused on the ultra-thin pressure-sensitive adhesive tape,
Furthermore, we conducted intensive research to develop a pressure-sensitive adhesive tape with excellent breathability and elasticity, and found that when a nonwoven fabric made of polyurethane elastic fibers was used as the base material of the pressure-sensitive adhesive tape, It has much better breathability than pressure-adhesive tape, does not cause stuffiness when used in high temperatures, and even when applied to the joints of the human body and the joints are expanded and contracted, the skin does not expand or contract. It is hoped that all the drawbacks of the ultra-thin pressure-sensitive adhesive tapes described above, such as not peeling off or shifting from the skin as it follows the movement of the skin, and not causing a twitching sensation on the skin when expanding and contracting joints, etc., will be completely eliminated. This discovery led to the completion of the present invention.
本発明はポリウレタン弾性繊維からなる不織布の一方表
面上にオルガノポリシロキサン系感圧粘着剤からなる粘
着層を設けてなる感圧粘着テープおよび前記感圧粘着テ
ープの粘着層の一部に吸湿性シートを貼着し、さらに剥
離性シートを全面に貼着してなる創傷面保護材に関する
。
［作用および実施例コ
本発明の感圧粘着テープは、ポリウレタン弾性繊維から
なる不織布の一方表面上に粘着層が設けられたものであ
る。
本発明においては基材としては、前記したように、ポリ
ウレタン弾性繊維からなる不織布が用られる。ポリウレ
タン弾性繊維は、すぐれた耐熱性（金属接触時１５０℃
以上）、耐寒性（−４０℃以下）、電気絶縁性（体積固
有抵抗：１０１３Ω・０１１１以上）、耐水性および耐
薬品性を有するものである。したがって、これらの諸物
性を有するような粘着層を前記ポリウレタン弾性繊維か
らなる不織布と組合せたばあいには、前記諸物性をすべ
て具備した感圧粘着テープかえられる。
前記諸物性を有する粘着層としては、たとえば後で詳述
するオルガノポリシロキサン系感圧接着剤などがあげら
れる。
本発明に用いられるポリウレタン弾性繊維からなる不織
布は、熱可塑性ポリウレタンエラストマーからなるフィ
ラメントを集積したいわゆるスパンボンド不織布であり
、通常熱可塑性ポリウレタンエラストマーを溶融し、該
溶融物を急速にノズルから空気中に噴出させ、えられた
フィラメントを集積したのち、冷却することによりえら
れるものである。かかるポリウレタン弾性繊維からなる
不織布のなかでは、溶融紡糸されたポリウレタン弾性フ
ィラメントが実質的に集束されずに積層され、前記積層
されたフィラメントの接触点が該フィラメント自体によ
り接合され、かつ不織布の剛軟度が式：
％式％
（式中、Ｙハ剛軟度（ｌＩｌｌ）、ｘは目付（ｇ／ｒｒ
ｒ）を示す）を満足するものは、とくに伸縮性、通気性
および柔軟性にすぐれているので好適に使用しうるちの
である。なお、前記不織布の剛軟度は、ＪＩＳ Ｌ−１
０９６に規定された４５度カンチレバー法に準じて測定
された値を示し、本発明において０．２Ｘ＋２０未満で
あるばあいには不織布の伸度が充分に大きくなるので好
ましい。とくに好ましい前記不織布の剛軟度は、０．２
Ｘ＋ １０未満である。前記熱可塑性ポリウレタンエラ
ストマーとしては、たとえばソフトセグメントが、アル
キレン基の炭素数が２〜８であるポリアルキレングリコ
ールやポリブチレンアジペートなどであり、またハード
セグメントが、ジフェニルメタンジイソシアネートなど
のジイソシアネートと低分子ジオールとの反応によるウ
レタン結合などである熱可塑性ポリウレタンエラストマ
ーなどがあげられるが、かかるポリウレタンエラストマ
ーは、はんの−例であり、本発明はこれら例示のみによ
って限定されるものではない。
前記不織布の厚さおよび目付は、伸縮性および通気性に
対して相関関係にあるので一概には決定することができ
ない。たとえば、不織布の日付を大きくすれば通気性が
低下する傾向にあるのでその厚さを小さくする必要があ
る。したがって、前記不織布の厚さおよび目付は、えら
れる感圧粘着テープの用途などに応じて適宜調整するこ
とが望ましい。本発明の感圧粘着テープをたとえば創傷
面保護材に使用するばあいには、前記不織布の通気性は
、皮膚などに貼付したばあいであってもむれなどが発生
しないようにするために、ＪＩＳ Ｌ−１０９８に規定
されたフラジール形試験機を用いて測定したときにｌｏ
ｏｍｌ／ｃｄ−８ｅｃ以上であることが好ましい。なお
、前記不織布の厚さは、あまりにも薄いばあいには、え
られる感圧粘着テープの引張り強度が充分でなくなり、
またあまりにも厚すぎるばあいには、伸縮性が小さくな
りすぎる傾向にあるので、通常１００〜７００．ｃａｎ
、なかんづ＜１５０〜４００Ｉｓとすることが好ましい
。また、前記不織布の目付は、えられる感圧粘着テープ
に実用に適した引張り強度および適度な通気性を付与せ
しめるために、通常ｌＯ〜２００ｆ／ポ、なかんづ＜５
５０−１ｏｎ／イであることが好ましい。
前記不織布としては、たとえば鐘紡■製、エスバンシオ
ーネ［Ｆ］ＥＳ２５＾、ＥＳ５０Ａ 、 ＥＳ７５Ａ、
ＥＳ８５Ａ 、 ＥＳ８５Ａ 、 ＥＳ２５、ＥＳ５０
、ＥＳ１５０ 、ＵＨ２５、ＵＨ５０、ＵＨ７５、ＵＨ
ｌｏｏ 、０１１１２５ 、ＵＨＤ２５ 、ＵＨＤ５Ｇ
、υＨＤ７５ 、ＵｌｌＤｌｏｏ、ＵＨＤ１２５、Ｅ１
１２５、Ｅｕ２Ｏ、ＥＨ７５、Ｅ ［８５、ＥＩＩｌｏ
ｏ 、ＥＨ１２５、ＥＨＬ８Ｑなどがあげられ、これら
の不織布はいずれも１００％伸長時における応力は４０
〜４７０ｇ／ｃｇ＋と小さく、またそのときの回復率は
約９０％以上とすぐれ、破断強度は０．１ｇ／ａｍ以上
、破断時における伸度は４００％以上であり、伸縮性お
よび引張り強度にすぐれ、かつ適度な通気性を有するも
のであるから、本発明において好適に使用しうるちので
ある。なお、本発明は、前記したような伸縮性および引
張り強度を有し、かつ適度な通気性を有する不織布であ
れば、前記例示したちの以外のものであっても使用しう
ろことは勿論のことである。
また、前記不織布は加熱すれば柔かくなるものであるの
で、その性質を利用して加熱下で該不織布にたとえばエ
ンボス加工を施してその表面上に凹凸模様を設け、該凸
部の上部にのみ粘着層を設けてもよい。このように凸部
の上部にのみ粘着層を設けたばあいには、凹部は粘着層
が設けられていないので被着物に粘着することなく自由
に伸縮しうるため、さらに貼付後の感圧粘着テープの伸
縮性が向上するので好ましい。
不織布の一方表面上に設けられる粘着層には、とくに限
定はないが、えられる感圧粘着テープに耐熱性、耐水性
、耐寒性、耐薬品性などを付与せしめるために、たとえ
ばオルガノポリシロキサン系感圧粘着剤などが用いられ
ることが好ましい。
前記オルガノポリシロキサン系感圧粘着剤の代表例とし
ては、たとえば一般式（■）：（式中、Ｒ１およびＲ２
はそれぞれメチル基またはフェニル基、ｎは整数を示す
）で表わされるシリコーンゴムに一般式（■）：
（式中、ｍは整数を示す）で表わされるシリコーンレジ
ンを配合して脱水縮合することによりえられるオルガノ
ポリシロキサンを溶剤で溶解したものなどがあげられる
が、本発明はかかる例示のみに限定されるものではない
。
なお、前記一般式（１）において、Ｒ＋およびＲ２はそ
れぞれメチル基またはフェニル基であるが、粘着層に耐
熱性などを付与せしめるためには、メチル基とフェニル
基のモル比（メチル基／フェニル基）は、２５／ ７５
〜９８／２、なかんづ＜８５／１５〜９５１５であるこ
とが好ましい。また、前記オルガノポリシロキサンを溶
解するために用いられる溶剤としては、たとえばベンゼ
ン、トルエン、キシレン、ナフサなどの芳香族系有機溶
剤があげられる。該溶剤の使用量は、前記オルガノポリ
シロキサンの分子量やえられる感圧粘着テープの用途な
どに異なるので一概には決定することができないが、通
常、不織布上へ粘着層を形成する作業性を考慮すれば、
感圧粘着剤の粘度が２０００〜２０００００ｃＰ、なか
んづく５０００〜２５０００ｃＰ （２５℃）となるよ
うに調整されることが好ましい。さらに、感圧粘着剤に
熱硬化性を付与し、高温下における粘着性を向上せしめ
るために、たとえば過酸化ベンゾイル、過酸化ジクミル
などの有機過酸化物を、前記感圧粘着剤の固形分に対し
て１．５〜３重量％程度配合することが好ましい。
前記オルガノポリシロキサン系感圧粘着剤としては、た
とえばダウ・コーニング社製３５５；ゼネラル・エレク
トリック社製ＰＳＡ ５１ｇ 、ＰＳＡ５９０ 、ＰＳ
Ａ ５９５ 、ＰＳＡ ８５７４ 、東芝シリコーン■
製ＹＲ３３４０などを好適に使用することができる。
不織布の一方表面上に粘着層を設ける方法についてはと
くに限定はないが、その−例をあげれば、たとえば感圧
粘着剤を不織布の一方表面上に刷毛塗り、スプレーコー
ティング、ナイフコーティングなどにより付着せしめた
のち、感圧粘着剤に含まれた有機溶剤を除去する方法な
どがあげられる。なお、感圧粘着剤に有機過酸化物を配
合したばあいには、有機溶剤を除去したのちに、さらに
１００〜１２０℃程度に感圧粘着剤を加熱して硬化さ
せることが好ましい。なお、不織布の一方表面上に設け
られる粘着層の付着量（乾！りは、前記感圧粘着剤の種
類、えられる感圧粘着テープの用途などによって異なる
ので、−概には決定することができないが、通常５〜５
０ｇ／ｒｄ、なかんづ＜２０〜４０ｇ／ボとなるように
調整されることが望ましい。
前記のごとく構成される本発明の感圧粘着テープは、通
気性にきわめてすぐれたものであるので、たとえば高温
期に人体の皮膚に貼付したばあいであってもむれなどが
発生することがなく、しかも伸縮性にすぐれたものであ
るので、人体の関節部などに貼付し、関節部を伸縮させ
たばあいでも皮膚の伸縮に追随するので皮膚から剥離し
たり、ずれ動くことがないのである。
なお、本発明の感圧粘着テープは、たとえば創傷面保護
材などに用いられるばあいには、外部からの水や汗など
によってむれないようにするために、防水性および透湿
性を有するものであることが好ましい。たとえば、汗な
どによってむれないようにするためには、ＪＩＳ Ｚ−
０２０８に準じて９０％Ｒ１１，４０℃、２４時間の条
件下で測定したときの透湿度は１０００ ｔ： ／ ｒ
ｄ ・２４ｈｒｓ以上、好ましくは１５００ ｔ ／
ｒｒｒ ・２４ｈｒｓ以上、さらに好ましくは１８００
〜８０００ｇ ／ ｒｒｒ ・２４ｈｒｓであることが
望ましい。かかる透湿度は、通常粘着層に用いられる粘
着剤の種類や付着量などにより調整される。また、感圧
粘着テープに防水性を付与せしめるためには、たとえば
パーフルオロアルキル基を有する化合物などの公知の撥
水剤を感圧粘着テープの粘着層が設けられていない側の
不織布面に固形分換算で０．ｌ〜５ｇ／ｒｄ程度付着さ
せるとよい。
なお、本発明の感圧粘着テープの粘着面には必要に応じ
て、剥離性シートが設けられていてもよい。かかる剥離
性シートは、粘着層から容易に剥離しうるちのであれば
とくに限定はなく、たとえば紙、布、プラスチックフィ
ルムなどの基材表面上にシリコーン系剥離剤を被覆した
ものなどがあげられる。なお、前記シリコーン系剥離剤
の一例をあげれば、たとえばゼネラル・エレクトリック
社製５Ｓ４３１５などがある。
つぎに本発明の創傷面保護材について説明する。
本発明の創傷面保護材は、前記感圧粘着テープの一部に
吸湿性シートを貼着し、さらに剥離性シートを全面に貼
着したものである。本発明の創傷面保護材の一実施例を
第１図に示す。また、第１図のＩ−Ｉ部における断面図
を第２図に示す。
第１および２図において、感圧粘着テープ（３）は、ポ
リウレタン弾性繊維からなる不織布（１）の一方表面上
に粘着層（２）が設けられることにより構成されており
、粘着層（２）のほぼ中央部分には吸湿性シート（４）
が設けられ、さらに吸湿性シート（４）上には剥離性シ
ート（５）が設けられている。
前記吸湿性シート（４）としては、公知のものを用いる
ことができる。その−例として、たとえば殺菌処理が施
された綿やセルロース系繊維からなる織布、編地や不織
布などを素材とする布地などがあげられるが、本発明は
かかる例示のみに限定されるものではない。これらの吸
湿シートのなかでは、綿の編地を素材とする布地は、適
度な伸びを呈するものであるから、とくに好ましいもの
である。なお、前記吸湿性シート（４）の大きさは、通
常感圧粘着テープ（３）よりも小さい寸法となるように
調整される。また、前記吸湿性シート（４）が設けられ
る位置は、とくに限定がなく、たとえば第２図に示され
るように感圧粘着テープ（３）の中央部であってもよく
、感圧粘着テープ（３）の端部であってもよい。
前記剥離性シート（５）とし′ては、前記感圧粘着テー
プ（３）に用いられるものと同じものが例示される。か
かる剥離性シート（５）は、通常感圧粘着テープ（３）
の粘着層（２）上に吸湿性シート（４）が貼付固定され
た面上に感圧粘着テープ（３）の全面を覆うように貼着
される。
なお、本発明の創傷面保護材に用いられる感圧粘着テー
プは、たとえば人体の関節部などに貼付したばあいであ
っても皮膚にひきつれ感などを与えず、また皮膚の伸縮
に追随せしめるためにＪＩＳ Ｌ−１０９８に規定の方
法にしたがって測定したときの伸び率は５０％以上、ま
た人体貼付時の伸縮の繰返しによるたるみをなくし、伸
長後にもこの状態に復元せしめるために５０％伸長時の
回復率は８０％以上であることが好ましい。
つぎに本発明の感圧粘着テープおよび創傷面保護材を実
施例に基づいてさらに詳細に説明するが、本発明はかか
る実施例のみに限定されるものではない。
実施例１および２
オルガノポリシロキサン系感圧粘着剤（ゼネ゛ラル・エ
レクトリック社製ＰＳＡ８５７４）をリバースロールコ
ータ−法により坪量（乾ｆｆ１）が２５ｔ／ｄまたは１
０ｔ／ｄとなるように剥離紙のシリコーン処理面上に塗
布したのち、この粘着層を７０℃で前乾燥してトルエン
を蒸発させ、さらに１２０℃で２分間加熱して後乾燥し
て硬化させ、ついで不織布（鐘紡■製エスパンシオーネ
■ＵＨＤ−７５；目付７５ｇ／ｒｒｒ、基材の厚さ ３
００μｍ）へ転写させて感圧粘着テープをえた。
えられた感圧粘着テープの物性として１００％伸長時の
応力および回復率、破断伸度、透湿度ならびに剥離強度
を下記方法にしたがって調べた。その結果を第１表に示
す。
（１００％伸長時の応力および回復率）ＪＩＳ Ｌ−１
０９６に準じて測定した。
（破断伸度）
ＪＩＳ Ｌ−１０９６に準じて測定した。
（透湿度）
ＪＩＳ Ｚ−０２０８１：準じテ９０％ＲＨ，４０℃、
２４時間の条件下で測定した。
（剥離強度）
えられた感圧粘着テープをステンレス板に貼付したのち
剥離試験機にかけ、剥離角１８０゜（Ｔ剥Ａｔ）、剥離
速度３００ｍｍ／ｓｅｃで剥離強度を調べた。
比較例１
実施例１において、基材としてポリウレタン弾性繊維か
らなる不織布のかわりにポリウレタンフィルム（厚さ：
０．０３ｍｍ）を用いたほかは実施例１と同様にして
感圧粘着テープを作製した。
つぎにえられた感圧粘着テープの物性を実施例１と同様
にして調べた。その結果を第１表に示す。
比較例２
実施例１において、感圧粘着剤としてオルガノポリシロ
キサン系感圧粘着剤のかわりにアクリル系感圧粘着剤を
用いたほかは実施例１と同様にして感圧粘着テープを作
製した。つぎにえられた感圧粘着テープの物性を実施例
１と同様にして調べた。その結果を第１表に示す。
［以下余白］
第１表に示した結果から明らかなように、実施例１およ
び２でえられた本発明の感圧粘着テープは、従来品の比
較例１でえられた感圧粘着テープと比較して１００％伸
長時の応力および回復率、破断伸度、透湿度ならびに剥
離強度のいずれにもすぐれたものであることがわかる。
また、実施例１および２でえられた感圧粘着テープを実
際にひじ部に貼付し、腕の伸縮を行なったが、いずれの
粘着テープも皮膚に追随して剥離などが生じず、また伸
縮時のひきつり感も感じなかった。
一方、比較例２でえられた感圧粘着テープは、透湿度に
やや劣るもρであることがわかる。
つぎに、実施例１〜２および比較例１〜２でえられた感
圧粘着テープを腕に貼付し、入浴したところ、実施例１
および２でえられた感圧粘着テープを貼付したばあいに
は、皮膚がむれることがなく、皮膚に充分に追随し、剥
離などが発生しなかったが、比較例１でえられた感圧粘
着テープでは、皮膚がむれてシワが発生し、また比較例
２でえられた感圧粘着テープでは、粘着性および皮膚に
対する追随性に劣り、風呂あがり後に剥れが生じた。
実施例３
実施例１でえられた感圧粘着テープを大きさが７０關×
２０關となるように切り取り、粘着層が設けられた綿の
中央部分に大きさが２５ｍｍ ８１５ｍｍの綿の編地か
らなるガーゼを貼付したのち、シリコーン系剥離剤が塗
布された剥離紙を貼付し、ゴムロールを用いて圧着して
創傷面保護材をえた。
えられた創傷面保護材の剥離紙を剥したのち、肘部に貼
付したところ、皮膚の伸縮に追随し、皮膚とのあいだで
剥離が発生せず、しかも皮膚にはひきつり感がなく、ま
ったく貼付していることを忘れさせるくらいに皮膚に馴
染むものであった。
実施例４
実施例３でえられた創傷面保護材の不織布面に撥水剤と
してパーフルオロオクチルメタクリレート／エチルアク
リレート／ブチルアクリレート共重合体（モル比８ ：
１ ： １）を固形分換算で２ｇ／ｒｄ塗布して防水
性を有する創傷面保護剤をえた。
えられた創傷面保護材の剥離紙を剥がし、ＪＩＳ Ｌ−
１０９６に規定の方法にしたがって伸び率を測定したと
ころ４７０％であり、また５０％伸長時の回復率は９Ｂ
％であった。
つぎに、実施例１および２と同様にして透湿度を調べた
ところ２１００〜２５００ｓｒ ／ ｎｆであり、また
風呂あがり後に剥れるようなことはなかった。
上記のことから、実施例４でえられた創傷面保護材は、
すぐれた伸縮性、透湿性および防水性を同時に満足する
ものであることがわかる。
［発明の効果］
本発明の感圧粘着テープは、基材として耐熱性、耐寒性
、耐薬品性および電気絶縁性にすぐれたポリウレタン弾
性繊維からなる不織布の一方表面上に粘着層が設けられ
たものであって、従来の感圧粘着テープに比して伸縮性
および通気性に顕著にすぐれたものであるので、たとえ
ば高温期に長時間皮膚に貼付したばあいであっても皮膚
がむれることかなく、また人体の関節部などのように大
きな伸縮性が要求される箇所に貼付したばあいであって
もずれ動いたり、皮膚から剥離して浮きが生じないなど
すぐれた効果を奏するものである。
したがって、本発明の感圧粘着テープは、医療用粘着テ
ープ、化粧用粘着テープをはじめ、電気絶縁用粘着テー
プなどとして広範囲に使用しうるちのである。
また、本発明の創傷面保護材は、剥離性シートを剥して
患部に貼付すればよく、伸縮性および通気性にすぐれた
感圧粘着テープからなるものであるので、人体の皮膚な
どに貼着したときに粘着面がむれることにより起因する
かぶれなどが生起することがなく、さらに人体の関節部
などのように伸縮性が大きい部分に貼着した際に、身体
の動きを妨げることが少なく、また粘着部が浮きあがる
ことがほとんどないというすぐれた効果を奏する。The present invention relates to a pressure-sensitive adhesive tape comprising an adhesive layer made of an organopolysiloxane-based pressure-sensitive adhesive on one surface of a nonwoven fabric made of polyurethane elastic fibers, and a hygroscopic sheet in a part of the adhesive layer of the pressure-sensitive adhesive tape. This invention relates to a wound surface protection material, which is made by attaching a releasable sheet to the entire surface of the wound surface. [Operations and Examples] The pressure-sensitive adhesive tape of the present invention has an adhesive layer provided on one surface of a nonwoven fabric made of polyurethane elastic fibers. In the present invention, as the base material, as described above, a nonwoven fabric made of polyurethane elastic fibers is used. Polyurethane elastic fiber has excellent heat resistance (150℃ when in contact with metal)
above), cold resistance (-40° C. or lower), electrical insulation (volume resistivity: 1013Ω.0111 or higher), water resistance, and chemical resistance. Therefore, if an adhesive layer having these physical properties is combined with the nonwoven fabric made of the polyurethane elastic fibers, a pressure-sensitive adhesive tape having all of the above physical properties can be obtained. Examples of the adhesive layer having the above-mentioned physical properties include organopolysiloxane pressure-sensitive adhesives, which will be described in detail later. The nonwoven fabric made of polyurethane elastic fibers used in the present invention is a so-called spunbond nonwoven fabric in which filaments made of a thermoplastic polyurethane elastomer are assembled, and the thermoplastic polyurethane elastomer is usually melted and the melt is rapidly poured into the air from a nozzle. It is obtained by ejecting the filaments, collecting the resulting filaments, and then cooling them. In such a nonwoven fabric made of polyurethane elastic fibers, melt-spun polyurethane elastic filaments are laminated without being substantially bundled, and the contact points of the laminated filaments are joined by the filaments themselves, and the nonwoven fabric has rigidity. The degree is the formula: % formula % (where Y is the bending resistance (lIll), x is the basis weight (g/rr
Those satisfying (r) are particularly suitable for use because they have excellent elasticity, air permeability, and flexibility. In addition, the bending resistance of the nonwoven fabric is JIS L-1
It is a value measured according to the 45 degree cantilever method specified in 096, and in the present invention, if it is less than 0.2X+20, it is preferable because the elongation of the nonwoven fabric becomes sufficiently large. A particularly preferable bending resistance of the nonwoven fabric is 0.2.
X+ is less than 10. As the thermoplastic polyurethane elastomer, for example, the soft segment is polyalkylene glycol or polybutylene adipate in which the alkylene group has 2 to 8 carbon atoms, and the hard segment is composed of a diisocyanate such as diphenylmethane diisocyanate and a low molecular diol. Examples include thermoplastic polyurethane elastomers, which have urethane bonds formed by the reaction of 1 to 2, but such polyurethane elastomers are merely examples of polyurethane, and the present invention is not limited to these examples. The thickness and basis weight of the nonwoven fabric cannot be determined unconditionally because they are correlated with stretchability and air permeability. For example, if the date of the nonwoven fabric is increased, its breathability tends to decrease, so it is necessary to reduce its thickness. Therefore, it is desirable to adjust the thickness and basis weight of the nonwoven fabric as appropriate depending on the intended use of the pressure-sensitive adhesive tape. When the pressure-sensitive adhesive tape of the present invention is used, for example, as a wound surface protection material, the breathability of the nonwoven fabric is determined to prevent swelling even when applied to the skin, etc. lo when measured using a Frazier type tester specified in JIS L-1098
It is preferable that it is oml/cd-8ec or more. Note that if the thickness of the nonwoven fabric is too thin, the resulting pressure-sensitive adhesive tape will not have sufficient tensile strength.
Also, if it is too thick, the elasticity tends to be too small, so it is usually 100 to 700. can
, it is preferable that <150 to 400 Is. In addition, the basis weight of the nonwoven fabric is usually 1O~200f/Po, and <5
It is preferable that it is 50-1 on/i. Examples of the nonwoven fabric include Esbancione [F] ES25^, ES50A, ES75A, manufactured by Kanebo ■,
ES85A, ES85A, ES25, ES50
, ES150, UH25, UH50, UH75, UH
loo, 011125, UHD25, UHD5G
, υHD75, UllDloo, UHD125, E1
125, Eu2O, EH75, E [85, EIIlo
o, EH125, EHL8Q, etc., and all of these nonwoven fabrics have a stress of 40% at 100% elongation.
It is small at ~470g/cg+, and the recovery rate is excellent at about 90% or more, the breaking strength is 0.1g/am or more, and the elongation at break is 400% or more, and it has excellent elasticity and tensile strength. , and has appropriate air permeability, so it can be suitably used in the present invention. It should be noted that the present invention can of course use non-woven fabrics other than those exemplified above as long as they have elasticity and tensile strength as described above and have appropriate air permeability. That's true. Furthermore, since the nonwoven fabric becomes soft when heated, it is also possible to take advantage of its properties and apply embossing to the nonwoven fabric under heating to form an uneven pattern on its surface, so that only the upper portions of the protrusions are adhesive. Layers may be provided. In this way, when an adhesive layer is provided only on the upper part of the convex part, the concave part is not provided with an adhesive layer and can freely expand and contract without adhering to the adherend. This is preferable because it improves the elasticity of the tape. The adhesive layer provided on one surface of the nonwoven fabric is not particularly limited, but in order to impart heat resistance, water resistance, cold resistance, chemical resistance, etc. to the resulting pressure-sensitive adhesive tape, for example, an organopolysiloxane-based adhesive layer is used. Preferably, a pressure sensitive adhesive or the like is used. Typical examples of the organopolysiloxane pressure sensitive adhesive include general formula (■): (wherein R1 and R2
is a methyl group or a phenyl group, respectively, n is an integer), and a silicone resin represented by the general formula (■): (in the formula, m is an integer) is blended with a silicone resin represented by the general formula (■), and m is an integer, and then dehydrated and condensed. Examples include those obtained by dissolving the organopolysiloxane obtained in a solvent, but the present invention is not limited to such examples. In the general formula (1), R+ and R2 are each a methyl group or a phenyl group, but in order to impart heat resistance to the adhesive layer, the molar ratio of methyl group to phenyl group (methyl group/phenyl group) must be adjusted. Base) is 25/75
It is preferable that it is 98/2 and <85/15 to 9515. Examples of the solvent used to dissolve the organopolysiloxane include aromatic organic solvents such as benzene, toluene, xylene, and naphtha. The amount of the solvent to be used cannot be determined unconditionally because it varies depending on the molecular weight of the organopolysiloxane and the intended use of the resulting pressure-sensitive adhesive tape, but it usually takes into consideration the workability of forming an adhesive layer on the nonwoven fabric. Ba,
The viscosity of the pressure sensitive adhesive is preferably adjusted to 2,000 to 200,000 cP, especially 5,000 to 25,000 cP (at 25°C). Furthermore, in order to impart thermosetting properties to the pressure-sensitive adhesive and improve its adhesion at high temperatures, organic peroxides such as benzoyl peroxide and dicumyl peroxide are added to the solid content of the pressure-sensitive adhesive. It is preferable to add about 1.5 to 3% by weight. Examples of the organopolysiloxane pressure sensitive adhesive include 355 manufactured by Dow Corning; PSA 51g, PSA590, and PS manufactured by General Electric.
A 595, PSA 8574, Toshiba Silicone■
YR3340 manufactured by YR3340 and the like can be suitably used. There are no particular limitations on the method of providing the adhesive layer on one surface of the non-woven fabric, but examples include, for example, applying a pressure-sensitive adhesive onto one surface of the non-woven fabric by brush coating, spray coating, knife coating, etc. Afterwards, the organic solvent contained in the pressure-sensitive adhesive can be removed. In addition, when an organic peroxide is blended into the pressure-sensitive adhesive, it is preferable to further heat the pressure-sensitive adhesive to about 100 to 120° C. to cure the pressure-sensitive adhesive after removing the organic solvent. The amount of adhesion (drying time) of the adhesive layer provided on one surface of the nonwoven fabric varies depending on the type of pressure-sensitive adhesive and the intended use of the pressure-sensitive adhesive tape, so it cannot be determined in general. Not possible, but usually 5-5
It is desirable to adjust it so that it becomes 0 g/rd and <20 to 40 g/rd. The pressure-sensitive adhesive tape of the present invention constructed as described above has excellent breathability, so even if it is applied to the human skin during hot weather, for example, it will not cause stuffiness. Moreover, it has excellent elasticity, so even if it is applied to the joints of the human body and the joints expand and contract, it will follow the expansion and contraction of the skin, so it will not peel off from the skin or shift. . Note that when the pressure-sensitive adhesive tape of the present invention is used, for example, as a wound surface protector, it must be waterproof and moisture-permeable to prevent it from getting wet due to external water or sweat. It is preferable that there be. For example, in order to prevent sweating, etc., JIS Z-
Moisture permeability when measured under the conditions of 90% R11, 40°C and 24 hours according to 0208 is 1000 t: / r
d ・24hrs or more, preferably 1500t/
rrr ・24hrs or more, more preferably 1800hrs
~8000g/rrr・24hrs is desirable. Such moisture permeability is usually adjusted by the type and amount of adhesive used in the adhesive layer. In addition, in order to impart waterproofness to the pressure-sensitive adhesive tape, a known water repellent such as a compound having a perfluoroalkyl group is solidified on the nonwoven fabric surface of the pressure-sensitive adhesive tape on the side where the adhesive layer is not provided. 0. It is advisable to deposit about 1 to 5 g/rd. Note that a releasable sheet may be provided on the adhesive surface of the pressure-sensitive adhesive tape of the present invention, if necessary. Such a releasable sheet is not particularly limited as long as it can be easily peeled off from the adhesive layer, and includes, for example, those coated with a silicone release agent on the surface of a base material such as paper, cloth, or plastic film. An example of the silicone release agent is 5S4315 manufactured by General Electric Company. Next, the wound surface protection material of the present invention will be explained. The wound surface protection material of the present invention has a hygroscopic sheet attached to a part of the pressure-sensitive adhesive tape, and a releasable sheet further attached to the entire surface. An embodiment of the wound surface protection material of the present invention is shown in FIG. Further, a sectional view taken along the line II in FIG. 1 is shown in FIG. 2. In Figures 1 and 2, the pressure-sensitive adhesive tape (3) is constructed by providing an adhesive layer (2) on one surface of a nonwoven fabric (1) made of polyurethane elastic fibers. There is a hygroscopic sheet (4) approximately in the center of the
A releasable sheet (5) is further provided on the hygroscopic sheet (4). As the hygroscopic sheet (4), known ones can be used. Examples include woven fabrics made of sterilized cotton or cellulose fibers, fabrics made from knitted fabrics, non-woven fabrics, etc., but the present invention is not limited to such examples. do not have. Among these moisture-absorbing sheets, fabrics made of knitted cotton are particularly preferred because they exhibit appropriate elongation. The size of the hygroscopic sheet (4) is usually adjusted to be smaller than the pressure sensitive adhesive tape (3). Further, the position where the hygroscopic sheet (4) is provided is not particularly limited, and may be, for example, at the center of the pressure-sensitive adhesive tape (3) as shown in FIG. The end portion of 3) may also be used. Examples of the releasable sheet (5) include those used for the pressure-sensitive adhesive tape (3). Such a releasable sheet (5) is usually a pressure-sensitive adhesive tape (3).
A hygroscopic sheet (4) is pasted onto the adhesive layer (2) of the adhesive layer (2) so as to cover the entire surface of the pressure-sensitive adhesive tape (3). Note that the pressure-sensitive adhesive tape used in the wound surface protection material of the present invention does not give a feeling of tightening to the skin even when applied to the joints of the human body, and it also follows the expansion and contraction of the skin. The elongation rate is 50% or more when measured according to the method specified in JIS L-1098, and the elongation rate is 50% or more when stretched by 50% to eliminate sagging due to repeated expansion and contraction when applied to the human body and to restore this state even after stretching. Preferably, the recovery rate is 80% or more. Next, the pressure-sensitive adhesive tape and wound surface protection material of the present invention will be explained in more detail based on Examples, but the present invention is not limited to these Examples. Examples 1 and 2 An organopolysiloxane pressure sensitive adhesive (PSA8574 manufactured by General Electric Co.) was coated with a reverse roll coater method to give a basis weight (dry ff1) of 25 t/d or 1
After coating the adhesive layer on the silicone-treated surface of release paper so as to give 0 t/d, the adhesive layer was pre-dried at 70°C to evaporate the toluene, and further heated at 120°C for 2 minutes, then dried and cured. , then non-woven fabric (Espansione UHD-75 manufactured by Kanebo ■; basis weight 75 g/rrr, base material thickness 3
00 μm) to obtain a pressure-sensitive adhesive tape. The physical properties of the resulting pressure-sensitive adhesive tape were examined for stress at 100% elongation, recovery rate, elongation at break, moisture permeability, and peel strength according to the following methods. The results are shown in Table 1. (Stress and recovery rate at 100% elongation) JIS L-1
Measured according to 096. (Elongation at break) Measured according to JIS L-1096. (Moisture permeability) According to JIS Z-02081: 90%RH, 40℃,
Measurement was performed under 24 hour conditions. (Peel strength) The obtained pressure-sensitive adhesive tape was applied to a stainless steel plate and then subjected to a peel tester to examine the peel strength at a peel angle of 180° (T peel At) and a peel speed of 300 mm/sec. Comparative Example 1 In Example 1, a polyurethane film (thickness:
A pressure-sensitive adhesive tape was produced in the same manner as in Example 1, except that 0.03 mm) was used. Next, the physical properties of the pressure-sensitive adhesive tape obtained were examined in the same manner as in Example 1. The results are shown in Table 1. Comparative Example 2 A pressure-sensitive adhesive tape was produced in the same manner as in Example 1, except that an acrylic pressure-sensitive adhesive was used instead of the organopolysiloxane-based pressure-sensitive adhesive. Next, the physical properties of the pressure-sensitive adhesive tape obtained were examined in the same manner as in Example 1. The results are shown in Table 1. [Margin below] As is clear from the results shown in Table 1, the pressure-sensitive adhesive tapes of the present invention obtained in Examples 1 and 2 are superior to the pressure-sensitive adhesive tape obtained in Comparative Example 1, which is a conventional product. In comparison, it can be seen that the stress at 100% elongation, recovery rate, elongation at break, moisture permeability, and peel strength are all excellent. In addition, the pressure-sensitive adhesive tapes obtained in Examples 1 and 2 were actually applied to the elbow and the arm was expanded and contracted, but none of the adhesive tapes followed the skin and did not peel off. I didn't feel the twitch of time. On the other hand, it can be seen that the pressure-sensitive adhesive tape obtained in Comparative Example 2 has a slightly inferior moisture permeability in terms of ρ. Next, when the pressure-sensitive adhesive tapes obtained in Examples 1 and 2 and Comparative Examples 1 and 2 were applied to the arm and the patient took a bath, Example 1
When the pressure-sensitive adhesive tape obtained in Comparative Example 1 and 2 was applied, the skin did not peel, it followed the skin well, and no peeling occurred. With the pressure-sensitive adhesive tape, the skin peeled and wrinkles appeared, and with the pressure-sensitive adhesive tape obtained in Comparative Example 2, the adhesiveness and followability to the skin were poor, and peeling occurred after taking a bath. Example 3 The pressure-sensitive adhesive tape obtained in Example 1 was
Cut the pieces into 20 pieces, stick gauze made of knitted cotton fabric with sizes of 25 mm and 815 mm on the center part of the cotton with the adhesive layer, and then stick release paper coated with a silicone release agent. A wound surface protection material was obtained by crimping using a rubber roll. After peeling off the release paper from the resulting wound surface protection material and applying it to the elbow, it followed the expansion and contraction of the skin, did not peel off from the skin, and did not cause any tingling sensation on the skin. It blends into the skin so well that you forget it's on. Example 4 Perfluorooctyl methacrylate/ethyl acrylate/butyl acrylate copolymer (molar ratio 8:
1: 1) was applied at 2 g/rd in terms of solid content to obtain a waterproof wound surface protectant. Peel off the release paper of the obtained wound surface protection material and apply JIS L-
When the elongation rate was measured according to the method specified in 1096, it was 470%, and the recovery rate at 50% elongation was 9B.
%Met. Next, the moisture permeability was examined in the same manner as in Examples 1 and 2, and it was found to be 2100 to 2500 sr/nf, and there was no peeling after taking a bath. From the above, the wound surface protection material obtained in Example 4 is as follows:
It can be seen that it satisfies excellent elasticity, moisture permeability, and waterproofness at the same time. [Effects of the Invention] The pressure-sensitive adhesive tape of the present invention has an adhesive layer provided on one surface of a nonwoven fabric made of polyurethane elastic fibers having excellent heat resistance, cold resistance, chemical resistance, and electrical insulation properties as a base material. It has significantly superior elasticity and breathability compared to conventional pressure-sensitive adhesive tapes, so it does not cause skin irritation even if it is applied to the skin for a long time in hot weather, for example. Even if it is applied to areas that require great elasticity, such as the joints of the human body, it will not shift or peel off from the skin and cause floating, and has excellent effects. It is. Therefore, the pressure-sensitive adhesive tape of the present invention can be used in a wide range of applications such as medical adhesive tapes, cosmetic adhesive tapes, and electrically insulating adhesive tapes. In addition, the wound surface protection material of the present invention can be applied to the affected area by peeling off the releasable sheet, and since it is made of pressure-sensitive adhesive tape with excellent elasticity and breathability, it can be applied to the skin of the human body. There is no risk of rashes caused by the adhesive surface peeling off when the product is applied, and it also does not impede body movement when applied to highly elastic areas such as joints of the human body. Moreover, it has an excellent effect in that the adhesive part hardly lifts up.
第１図は、本発明の創傷面保護材の一実施例を示す斜視
図、第２図は第１図の１−１線における断面図である。
（図面の主要符号）
（１）：不織布
（３：粘着層
（３）：感圧粘着テープ
（４）：吸湿性シート
（５）：剥離性シートFIG. 1 is a perspective view showing an embodiment of the wound surface protection material of the present invention, and FIG. 2 is a sectional view taken along line 1-1 in FIG. 1. (Main symbols in the drawing) (1): Nonwoven fabric (3: Adhesive layer (3): Pressure-sensitive adhesive tape (4): Hygroscopic sheet (5): Peelable sheet
Claims (1)
にオルガノポリシロキサン系感圧粘着剤からなる粘着層
を設けてなる感圧粘着テープ。 ２ 不織布が、溶融紡糸されたポリウレタン弾性フィラ
メントが実質的に集束されずに積層され、前記積層され
たフィラメントの接触点が該フィラメント自体により接
合されてなり、かつ不織布の剛軟度が式： Ｙ＜０．２Ｘ＋２０ （式中、Ｙは剛軟度（ｍｍ）、Ｘは目付（ｇ／ｍ＾２）
を示す）を満足するものである請求項１記載の感圧粘着
テープ。 ３ 請求項１に記載の感圧粘着テープの粘着層の一部に
吸湿性シートを貼着し、さらに剥離性シートを全面に貼
着してなる創傷面保護材。 ４ 感圧粘着テープが防水性および透湿性を有し、かつ
伸び率が５０％以上であり、５０％伸長時の回復率が８
０％以上である請求項３記載の創傷面保護材。[Scope of Claims] 1. A pressure-sensitive adhesive tape comprising an adhesive layer made of an organopolysiloxane pressure-sensitive adhesive on one surface of a nonwoven fabric made of polyurethane elastic fibers. 2 The nonwoven fabric is formed by laminating melt-spun polyurethane elastic filaments without being substantially bundled, the contact points of the laminated filaments are joined by the filaments themselves, and the bending resistance of the nonwoven fabric is expressed by the formula: Y <0.2X+20 (In the formula, Y is bending resistance (mm), X is basis weight (g/m^2)
The pressure-sensitive adhesive tape according to claim 1, which satisfies the following. 3. A wound surface protection material comprising a hygroscopic sheet attached to a part of the adhesive layer of the pressure-sensitive adhesive tape according to claim 1, and a releasable sheet further attached to the entire surface. 4 The pressure-sensitive adhesive tape has waterproofness and moisture permeability, has an elongation rate of 50% or more, and has a recovery rate of 8 when elongated by 50%.
The wound surface protection material according to claim 3, which has a content of 0% or more.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP34294789A JP2865342B2 (en) | 1989-12-28 | 1989-12-28 | Pressure-sensitive adhesive tape and wound surface protection material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP34294789A JP2865342B2 (en) | 1989-12-28 | 1989-12-28 | Pressure-sensitive adhesive tape and wound surface protection material |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH03200885A true JPH03200885A (en) | 1991-09-02 |
| JP2865342B2 JP2865342B2 (en) | 1999-03-08 |
Family
ID=18357749
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP34294789A Expired - Lifetime JP2865342B2 (en) | 1989-12-28 | 1989-12-28 | Pressure-sensitive adhesive tape and wound surface protection material |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2865342B2 (en) |
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| Publication number | Publication date |
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| JP2865342B2 (en) | 1999-03-08 |
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