JP2000201967A - Medical dressing and emergency adhesive plaster - Google Patents
Medical dressing and emergency adhesive plasterInfo
- Publication number
- JP2000201967A JP2000201967A JP11007178A JP717899A JP2000201967A JP 2000201967 A JP2000201967 A JP 2000201967A JP 11007178 A JP11007178 A JP 11007178A JP 717899 A JP717899 A JP 717899A JP 2000201967 A JP2000201967 A JP 2000201967A
- Authority
- JP
- Japan
- Prior art keywords
- film
- layer
- medical
- ethylene
- olefin
- 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
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は医療衛生分野などで
皮膚貼付用途に使用される医療用貼付材に関するもので
あり、詳しくは救急絆創膏や大型絆創膏、ドレッシング
材、ドレープ材などに好適に使用される医療用貼付材に
関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a medical patch used for application to the skin in the field of medical hygiene and the like. More specifically, the present invention is suitably used for emergency bandages, large bandages, dressings, drapes and the like. Medical patch.
【０００２】[0002]
【従来の技術】医療用貼付材は、通常、基材フィルムの
片面に粘着剤層を設けてなるものであり、該粘着剤層を
介して適用すべき皮膚面に貼着使用される。2. Description of the Related Art A medical adhesive material is generally provided with a pressure-sensitive adhesive layer on one side of a base film, and is applied to the skin surface to be applied via the pressure-sensitive adhesive layer.
【０００３】このような医療用途の貼付材に用いる基材
フィルムは、貼付中の皮膚追従性（柔軟性）や伸縮性、
風合いなどの点から、軟質のポリ塩化ビニルを主成分と
するものが主に用いられている。[0003] A base film used for such a patch for medical use has skin followability (flexibility) and elasticity during sticking.
From the viewpoint of texture, etc., those mainly composed of soft polyvinyl chloride are mainly used.
【０００４】しかしながら、一般に軟質ポリ塩化ビニル
は柔軟性を付与するために、可塑剤が多く配合されてお
り、この可塑剤が粘着剤層中に移行して粘着剤層の凝集
力を低下させ糊残り現象が生じたり、粘着力が低下する
などの問題を有することが指摘されている。さらに近
年、環境問題重視の観点から、ハロゲンである塩素を含
有しているポリ塩化ビニル樹脂の使用量を減少させよう
とする動きが各分野で進んでいる。[0004] However, in general, soft polyvinyl chloride contains a large amount of plasticizer in order to impart flexibility, and this plasticizer migrates into the pressure-sensitive adhesive layer to reduce the cohesive force of the pressure-sensitive adhesive layer and reduce the size of the adhesive. It has been pointed out that there are problems such as the occurrence of a residual phenomenon and a decrease in adhesive strength. Further, in recent years, from the viewpoint of emphasizing environmental issues, there has been a movement in various fields to reduce the amount of polyvinyl chloride resin containing chlorine, which is a halogen.
【０００５】そこで、ポリ塩化ビニル代替樹脂として、
ポリオレフィン系樹脂が注目されており、本発明のよう
な医療用途の貼付材の基材フィルムとしても検討、利用
されるようになっている。これらポリオレフィン系樹脂
からなる基材フィルムは、柔軟性や伸縮性には優れてお
り、ポリ塩化ビニル代替フィルムとして有用である。[0005] Therefore, as a polyvinyl chloride substitute resin,
Polyolefin resins have attracted attention, and have been studied and used as base films of adhesives for medical applications as in the present invention. The base film made of these polyolefin-based resins is excellent in flexibility and stretchability, and is useful as a polyvinyl chloride substitute film.
【０００６】[0006]
【発明が解決しようとする課題】しかしながら、これら
の医療用貼付材を製品化するにおいて、例えば救急絆創
膏や大型絆創膏などでは片面に印刷層を施して製品化す
ることがあるが、印刷層を形成する際に、オレフィン系
フィルムの場合では、フィルム表面の表面粗さに最適範
囲があることが判明した。However, when commercializing these medical adhesive materials, for example, in the case of emergency bandages or large bandages, there is a case where a printed layer is applied to one side to produce a product, but the printed layer is formed. In the case of the olefin-based film, it was found that there was an optimum range in the surface roughness of the film surface.
【０００７】つまり、フィルム表面の表面粗さを最適範
囲に調整することによってオレフィン系フィルムをロー
ル状に巻き取る際に巻き込まれた空気の逃げ道が確保で
き、その結果、フィルムに巻き皺を発生しがたくなり、
巻き皺に起因する後工程での印刷不良（印刷欠け）を防
止できることが判ったのである。[0007] In other words, by adjusting the surface roughness of the film surface to an optimum range, an escape path for the air entrained when the olefin-based film is wound into a roll can be ensured, and as a result, the film is wrinkled. I feel nervous
It has been found that printing defects (printing deficiencies) in subsequent steps due to winding wrinkles can be prevented.
【０００８】特に、フィルム表面に多色印刷を施す場
合、高精度に合わせて一色ずつ印刷するので、フィルム
の巻き取りなどで僅かなシワが入っても印刷に欠けが生
じ易くなり、印刷面の表面粗さの調整が極めて重要とな
るのである。In particular, when performing multi-color printing on the film surface, printing is performed one color at a time in accordance with high precision. Therefore, even if a slight wrinkle is formed due to winding of the film, the printing is likely to be chipped, and the printing surface is not easily printed. Adjusting the surface roughness is extremely important.
【０００９】さらに、ロール状のオレフィン系フィルム
を巻き戻して片面に医療用粘着剤層を形成する場合、フ
ィルム表面の表面粗さを最適範囲に調整しておくと、巻
き戻し時のフィルムの滑り性が良好となり、特にフィル
ム厚が薄い場合でのフィルム切れも起こさず、また、巻
き取りロールへの密着による巻き皺の発生もなくなるこ
とが判った。Further, when a roll-shaped olefin-based film is rewound to form a medical pressure-sensitive adhesive layer on one side, if the surface roughness of the film surface is adjusted to an optimum range, the slippage of the film at the time of rewinding is improved. It was found that the film had good properties, and that the film did not break, especially when the film thickness was small, and that no wrinkles were generated due to close contact with the take-up roll.
【００１０】[0010]
【課題を解決するための手段】そこで、本発明者らは上
記課題を解決するために鋭意検討を重ねた結果、印刷層
形成側のフィルム表面の粗さを特定範囲に調整すること
で、印刷層形成性に優れ、貼付使用中の印刷層の磨耗も
少なくなることを見い出し、本発明を完成するに至っ
た。The inventors of the present invention have made intensive studies to solve the above-mentioned problems, and as a result, have adjusted the roughness of the film surface on the printing layer forming side to a specific range, thereby improving the printing quality. It has been found that the layer has excellent layer-forming properties and that the wear of the printing layer during use during application is reduced, and the present invention has been completed.
【００１１】即ち、本発明はオレフィン系フィルムの片
面に医療用粘着剤層を形成し、他面に多色印刷層を形成
してなる貼付材であって、印刷層形成側のオレフィン系
フィルム表面の表面粗さ（十点平均粗さ）が２〜１２μ
ｍであることを特徴とする医療用貼付材、および上記医
療用貼付材における粘着剤層表面の中央域に、吸液性パ
ッドを設けてなる救急絆創膏を提供するものである。That is, the present invention relates to an adhesive material comprising a medical pressure-sensitive adhesive layer formed on one side of an olefin-based film and a multicolor printing layer formed on the other side, wherein the surface of the olefin-based film on the print layer-forming side is provided. Has a surface roughness (ten-point average roughness) of 2 to 12 μm
m, and a rescue adhesive bandage provided with a liquid-absorbent pad in a central region of the surface of the pressure-sensitive adhesive layer in the medical patch.
【００１２】特に、本発明におけるオレフィン系フィル
ムとして、エチレン−酢酸ビニル共重合体フィルムや、
エチレン−メタクリル酸メチル共重合体層／Ａ−Ｂ−Ａ
型ブロック共重合体層／エチレン−メタクリル酸メチル
共重合体層からなる３層フィルムを用いることが好まし
く、Ａ−Ｂ−Ａ型ブロック共重合体としては、スチレン
−ブタジエン−スチレンブロック共重合体、またはスチ
レン−イソプレン−スチレンブロック共重合体を用いる
ことが好ましい。In particular, as the olefin film in the present invention, an ethylene-vinyl acetate copolymer film,
Ethylene-methyl methacrylate copolymer layer / ABA
It is preferable to use a three-layer film composed of a type block copolymer layer / ethylene-methyl methacrylate copolymer layer. As the ABA type block copolymer, a styrene-butadiene-styrene block copolymer, Alternatively, it is preferable to use a styrene-isoprene-styrene block copolymer.
【００１３】また、オレフィン系フィルムとして上記３
層フィルムを用いた場合には、エチレン−メタクリル酸
メチル共重合体層はエチレン−メタクリル酸メチル共重
合体と低密度ポリエチレンを含有した層とすることが好
ましく、特に、エチレン−メタクリル酸メチル共重合体
を連続相とし、低密度ポリエチレンを分散相とするミク
ロドメイン構造（海島構造）を有するものが好ましい。Further, the above-mentioned 3
When a layer film is used, the ethylene-methyl methacrylate copolymer layer is preferably a layer containing an ethylene-methyl methacrylate copolymer and low-density polyethylene, and in particular, ethylene-methyl methacrylate copolymer Those having a microdomain structure (sea-island structure) in which the coalescence is a continuous phase and the low-density polyethylene is a dispersed phase are preferred.
【００１４】[0014]
【発明の実施の形態】本発明の医療用貼付材に用いるこ
とができるオレフィン系フィルムとは、ポリエチレンや
ポリプロピレン、エチレン−プロピレン共重合体などに
代表される炭化水素系不飽和単量体の重合物だけでな
く、これらの炭化水素系不飽和単量体と他の改質用単量
体との共重合体も含まれる。具体的には、ポリエチレ
ン、ポリプロピレン、エチレン−プロピレン共重合体、
エチレン／１−ブテン共重合体、エチレン／１−オクテ
ン共重合体、エチレン−メタクリル酸メチル共重合体、
エチレン−メタクリル酸共重合体、エチレン−酢酸ビニ
ル共重合体、ポリプロピレン−ポリブテン混合物、ポリ
エチレン−ポリブテン混合物から選ばれる少なくとも一
種であるポリオレフィン系の樹脂が好ましいものとして
挙げられる。DESCRIPTION OF THE PREFERRED EMBODIMENTS An olefin film that can be used for the medical patch of the present invention refers to a polymer of a hydrocarbon unsaturated monomer represented by polyethylene, polypropylene, ethylene-propylene copolymer and the like. And copolymers of these hydrocarbon-based unsaturated monomers and other modifying monomers. Specifically, polyethylene, polypropylene, ethylene-propylene copolymer,
Ethylene / 1-butene copolymer, ethylene / 1-octene copolymer, ethylene-methyl methacrylate copolymer,
Preferred are polyolefin-based resins that are at least one selected from ethylene-methacrylic acid copolymer, ethylene-vinyl acetate copolymer, polypropylene-polybutene mixture, and polyethylene-polybutene mixture.
【００１５】また、本発明において用いるオレフィン系
フィルムは単層フィルムだけでなく、複層フィルムであ
ってもよく、複層フィルムの場合には何れかの層がオレ
フィン系フィルムであればよいので、オレフィン系フィ
ルム／改質用樹脂フィルムやオレフィン系フィルム／改
質用樹脂フィルム／オレフィン系フィルム、改質用樹脂
フィルム／オレフィン系フィルム／改質用樹脂フィルム
などの構造であってもよい。このような改質用樹脂とし
ては、例えばスチレン／ブタジエン／スチレントリブロ
ック共重合体や、スチレン／イソプレン／スチレントリ
ブロック共重合体のようなＡ−Ｂ−Ａ型ブロック共重合
体などが挙げられる。Further, the olefin-based film used in the present invention is not limited to a single-layer film, and may be a multilayer film. In the case of a multilayer film, any one of the layers may be an olefin-based film. The structure may be an olefin-based film / modified resin film or an olefin-based film / modified resin film / olefin-based film, or a modified resin film / olefin-based film / modified-resin film. Examples of such a modifying resin include an ABA type block copolymer such as a styrene / butadiene / styrene triblock copolymer and a styrene / isoprene / styrene triblock copolymer. .
【００１６】上記オレフィン系フィルムのうち、柔軟性
や伸縮性、適度な引張強度などの点から好ましく用いる
ことができるフィルムとしては、エチレン−酢酸ビニル
共重合体フィルム、またはエチレン−メタクリル酸メチ
ル共重合体層／Ａ−Ｂ−Ａ型ブロック共重合体層／エチ
レン−メタクリル酸メチル共重合体層からなる３層フィ
ルムであり、Ａ−Ｂ−Ａ型ブロック共重合体としてスチ
レン−ブタジエン−スチレンブロック共重合体、または
スチレン−イソプレン−スチレンブロック共重合体を用
いたものがさらに好適である。Among the above-mentioned olefin-based films, a film which can be preferably used from the viewpoint of flexibility, stretchability, appropriate tensile strength and the like includes an ethylene-vinyl acetate copolymer film and an ethylene-methyl methacrylate copolymer film. It is a three-layer film composed of a united layer / ABA type block copolymer layer / ethylene-methyl methacrylate copolymer layer, and a styrene-butadiene-styrene block copolymer as an ABA type block copolymer. Those using a polymer or a styrene-isoprene-styrene block copolymer are more preferred.
【００１７】オレフィン系フィルムとしてエチレン−酢
酸ビニル共重合体フィルムを用いた場合、適度な弾性や
柔軟性、伸縮性を有するという点から、酢酸ビニル含量
が１５〜２８重量％、好ましくは２０〜２５重量％の範
囲のものを用いることが好ましく、また、重量平均分子
量が１×１０4 〜１×１０5 であり、分子量分布が４以
下、好ましくは３．５以下の比較的分子量分布の狭いも
のを用いることが好ましい。さらに、ＪＩＳＫ−６７３
０に準じて測定するメルトフローレートが３ｇ／１０分
以下の流動性の低いものを用いることが、フィルム化し
た際の適度な引張強度の付与の点で好ましいものであ
る。When an ethylene-vinyl acetate copolymer film is used as the olefin-based film, the vinyl acetate content is 15 to 28% by weight, preferably 20 to 25%, from the viewpoint of having appropriate elasticity, flexibility and stretchability. It is preferable to use one having a weight-average molecular weight of 1 × 10 4 to 1 × 10 5 and a relatively narrow molecular weight distribution of 4 or less, preferably 3.5 or less. It is preferable to use Furthermore, JISK-673
It is preferable to use a material having a low fluidity with a melt flow rate of 3 g / 10 minutes or less measured according to 0 from the viewpoint of imparting an appropriate tensile strength when formed into a film.
【００１８】また、上記３層フィルムを構成するエチレ
ン−メタクリル酸メチル共重合体層は、エチレン−メタ
クリル酸メチル共重合体と低密度ポリエチレンを含有し
た層とすることが好ましい。低密度ポリエチレンを含有
させると、フィルム内に低密度ポリエチレンが相溶せず
に微粒子状に分散した状態で存在するので、フィルム表
面にこの微粒子によって適度な凹凸が生じ、その結果、
得られるフィルムに高級感を付与できると共に、目的と
する表面粗さが得られやすくなるのである。この場合、
低密度ポリエチレンの配合量は、エチレン−メタクリル
酸メチル共重合体層中に、５〜４５重量％、好ましくは
１５〜３５重量％程度にすることがよい。The ethylene-methyl methacrylate copolymer layer constituting the three-layer film is preferably a layer containing an ethylene-methyl methacrylate copolymer and low-density polyethylene. When low-density polyethylene is contained, the low-density polyethylene is present in a state in which the low-density polyethylene is not compatible with each other and is dispersed in the form of fine particles.
Not only can the resulting film be given a high quality feeling, but also the desired surface roughness can be easily obtained. in this case,
The blending amount of the low-density polyethylene is 5 to 45% by weight, preferably about 15 to 35% by weight in the ethylene-methyl methacrylate copolymer layer.
【００１９】さらに、上記のように、低密度ポリエチレ
ンを含有させた場合、各樹脂成分が相溶して均一化する
よりも、エチレン−メタクリル酸メチル共重合体が連続
相（海）としてマトリックスを形成し、低密度ポリエチ
レンがこのマトリックス中に分散相（島）として分散し
てなる、所謂ミクロドメイン構造（海島構造）を有する
ようにすることが好ましい。Further, as described above, when low-density polyethylene is contained, the ethylene-methyl methacrylate copolymer forms a matrix as a continuous phase (sea), rather than the resin components being compatible and uniform. It is preferable to form so-called microdomain structure (sea-island structure) in which low-density polyethylene is dispersed in this matrix as a dispersed phase (island).
【００２０】つまり、各樹脂成分が相溶して均一化する
と、各樹脂成分が有する特性の中間的な特性しか得るこ
とができないが、上記のようなミクロドメイン構造をと
ることによって、各樹脂成分が有する特性もある程度発
揮できるので、配合量の調整によって所望する特性を得
ることが容易になるのである。That is, if the respective resin components are compatible with each other and become uniform, only intermediate characteristics of the characteristics of the respective resin components can be obtained. Can also exhibit some of the properties, so that it is easy to obtain the desired properties by adjusting the blending amount.
【００２１】上記のようにして得られるオレフィン系フ
ィルムは、本発明の医療用貼付材に用いるためには、そ
の厚みが１０〜２００μｍ、好ましくは３０〜１３０μ
ｍ程度になるように成形される。また、得られたフィル
ムの表面には、粘着剤層を形成した際の投錨性を良好に
するために、コロナ放電処理や公知の下塗り剤塗布など
の処理を施すことが好ましい。The olefin-based film obtained as described above has a thickness of 10 to 200 μm, preferably 30 to 130 μm, for use in the medical patch of the present invention.
m. In addition, the surface of the obtained film is preferably subjected to a treatment such as corona discharge treatment or application of a known undercoating agent in order to improve anchoring properties when the pressure-sensitive adhesive layer is formed.
【００２２】本発明の医療用貼付材においては、上記オ
レフィン系フィルムの片面に粘着剤層を形成して本発明
の医療用貼付材を作製するが、形成する粘着剤として
は、医療用粘着剤として用いられているものであれば特
に限定されない。好ましく用いることができる粘着剤と
しては、アクリル系粘着剤やゴム系粘着剤、シリコーン
系粘着剤、これらのブレンド系粘着剤などがある。In the medical patch of the present invention, a pressure-sensitive adhesive layer is formed on one surface of the olefin-based film to prepare the medical patch of the present invention. There is no particular limitation as long as it is used as. Examples of the adhesive that can be preferably used include an acrylic adhesive, a rubber-based adhesive, a silicone-based adhesive, and a blend-based adhesive thereof.
【００２３】アクリル系粘着剤としては、好ましくは炭
素数が１〜１８、好ましくは４〜１２のアルキル基を有
する（メタ）アクリル酸アルキルエステルの単独重合体
や該エステルを主成分単量体として他の単量体（例え
ば、官能性単量体など）を３〜５０重量％、好ましくは
５〜４０重量％の範囲で共重合してなる共重合体などが
用いられる。The acrylic pressure-sensitive adhesive is preferably a homopolymer of an alkyl (meth) acrylate having an alkyl group having 1 to 18 carbon atoms, and preferably 4 to 12 carbon atoms, or a monomer containing the ester as a main monomer. A copolymer obtained by copolymerizing another monomer (for example, a functional monomer or the like) in a range of 3 to 50% by weight, preferably 5 to 40% by weight is used.
【００２４】上記（メタ）アクリル酸アルキルエステル
としては、ブチルエステル、ヘキシルエステル、オクチ
ルエステル、デシルエステル、ラウリルエステル、ステ
アリルエステルなどのエステルが挙げられ、これらのエ
ステル鎖は直鎖状や分岐鎖状であってもよい。Examples of the alkyl (meth) acrylate include esters such as butyl ester, hexyl ester, octyl ester, decyl ester, lauryl ester, and stearyl ester. These ester chains are linear or branched. It may be.
【００２５】また、上記エステルと共重合することがで
きる単量体としては、（メタ）アクリル酸２−ヒドロキ
シエチルエステルや（メタ）アクリル酸３−ヒドロキシ
プロピルエステルなどの（メタ）アクリル酸ヒドロキシ
アルキルエステル、（メタ）アクリル酸やマレイン酸、
フマル酸、クロトン酸などのカルボキシル基含有不飽和
単量体、（メタ）アクリルアミドやジメチル（メタ）ア
クリルアミド、ジエチル（メタ）アクリルアミドなどの
（メタ）アクリルアミドおよびその誘導体、Ｎ−ブトキ
シメチル（メタ）アクリルアミド、Ｎ−ブトキシメチル
（メタ）アクリルアミド、Ｎ−エトキシメチル（メタ）
アクリルアミドなどのＮ−アルコキシアルキル（メタ）
アクリルアミド、（メタ）アクリル酸Ｎ，Ｎ−ジメチル
アミノエチルエステルなどの（メタ）アクリル酸Ｎ，Ｎ
−アルキルアミノアルキルエステル、Ｎ−ビニルピロリ
ドンなどの酸アミド基含有不飽和単量体などの官能性単
量体が挙げられる。なお、これらの官能性単量体以外
に、酢酸ビニルやスチレン、α−メチルスチレン、（メ
タ）アクリロニトリルなどの無官能性の単量体も共重合
することができる。The monomers copolymerizable with the above-mentioned ester include hydroxyalkyl (meth) acrylates such as 2-hydroxyethyl (meth) acrylate and 3-hydroxypropyl (meth) acrylate. Esters, (meth) acrylic acid and maleic acid,
Carboxyl group-containing unsaturated monomers such as fumaric acid and crotonic acid; (meth) acrylamide such as (meth) acrylamide, dimethyl (meth) acrylamide and diethyl (meth) acrylamide and derivatives thereof; N-butoxymethyl (meth) acrylamide , N-butoxymethyl (meth) acrylamide, N-ethoxymethyl (meth)
N-alkoxyalkyl (meth) such as acrylamide
(Meth) acrylic acid N, N such as acrylamide, (meth) acrylic acid N, N-dimethylaminoethyl ester
Functional monomers such as unsaturated amide group-containing monomers such as -alkylaminoalkyl esters and N-vinylpyrrolidone. In addition, in addition to these functional monomers, non-functional monomers such as vinyl acetate, styrene, α-methylstyrene, and (meth) acrylonitrile can also be copolymerized.
【００２６】粘着剤層に用いることができるゴム系の粘
着剤としては、天然ゴム、ポリイソブチレン、ポリイソ
プレン、ポリブテン、スチレン−イソプレン（またはブ
タジエン）系ブロック共重合体、エチレン−酢酸ビニル
共重合体などの主材料樹脂に副資材としてロジン系樹脂
やテルペン系樹脂、クマロン−インデン樹脂、テルペン
−フェノール系樹脂、石油系樹脂などの粘着付与剤を配
合して用いることができる。さらに、必要に応じて液状
ポリブテンや鉱油、ラノリン、液状ポリイソプレンなど
の軟化剤や、酸化チタン、クレーなどの充填剤、ブチル
ヒドロキシトルエンなどの酸化防止剤などを適宜配合し
てもよい。なお、このような副資材は前記アクリル系粘
着剤に配合してもよい。Examples of the rubber-based pressure-sensitive adhesive that can be used in the pressure-sensitive adhesive layer include natural rubber, polyisobutylene, polyisoprene, polybutene, styrene-isoprene (or butadiene) -based block copolymer, and ethylene-vinyl acetate copolymer. A tackifier such as a rosin-based resin, a terpene-based resin, a coumarone-indene resin, a terpene-phenol-based resin, or a petroleum-based resin can be compounded as a sub-material with a main material resin such as the above. Further, if necessary, a softening agent such as liquid polybutene, mineral oil, lanolin, and liquid polyisoprene, a filler such as titanium oxide and clay, and an antioxidant such as butylhydroxytoluene may be appropriately compounded. In addition, you may mix | blend such an auxiliary material with the said acrylic adhesive.
【００２７】さらに、粘着剤として使用できるシリコー
ン系粘着剤としては、ポリジメチルシロキサンを主成分
とする粘着剤などが挙げられる。Further, examples of the silicone-based pressure-sensitive adhesive that can be used as the pressure-sensitive adhesive include a pressure-sensitive adhesive containing polydimethylsiloxane as a main component.
【００２８】上記の組成からなる粘着剤層は、基材フィ
ルム上に１０〜２００μｍ、好ましくは２０〜１００μ
ｍ程度の厚みで形成されることによって、本発明の医療
用貼付材とすることができる。The pressure-sensitive adhesive layer having the above-mentioned composition has a thickness of 10 to 200 μm, preferably 20 to 100 μm on the substrate film.
By being formed with a thickness of about m, the medical patch of the present invention can be obtained.
【００２９】本発明の医療用貼付材では、支持基材とし
て用いるオレフィン系フィルムの片面（粘着剤層形成面
と反対の面）に多色の印刷層を形成する。印刷層は、シ
アンやマゼンタ、イエロー、ブラック、金、銀などの複
数の色のインクを用いて多段印刷によって形成すればよ
いが、好ましくは紫外線硬化型のインクを用いることが
よい。紫外線硬化型のインクを用いて印刷層を形成する
と、印刷速度の向上や、印刷精度の向上が望め、特にキ
ャラクター印刷などに効果的なのである。In the medical patch of the present invention, a multicolor printing layer is formed on one surface (the surface opposite to the surface on which the pressure-sensitive adhesive layer is formed) of an olefin film used as a support substrate. The printing layer may be formed by multi-stage printing using inks of a plurality of colors such as cyan, magenta, yellow, black, gold, and silver, and preferably, ultraviolet curable ink is used. When a printing layer is formed using an ultraviolet curable ink, an improvement in printing speed and an improvement in printing accuracy can be expected, and it is particularly effective for character printing and the like.
【００３０】なお、本発明ではオレフィン系フィルムの
表面にキャラクターなどを多色印刷によって形成する
が、印刷の鮮明度や隠蔽度を向上させるために、フィル
ム中にチタン白やゼオライト、亜鉛華などのフィルムを
白色にするための充填剤を含有させておくことが好まし
い。In the present invention, characters and the like are formed on the surface of the olefin-based film by multicolor printing. In order to improve the clarity and hiding degree of the printing, titanium white, zeolite, zinc white and the like are included in the film. It is preferable to include a filler for making the film white.
【００３１】本発明の医療用貼付材および救急絆創膏に
おいて、支持基材として用いるオレフィン系フィルムの
表面粗さを、特定の範囲、つまり印刷層形成側の表面粗
さを２〜１２μｍの範囲、好ましくは３〜８μｍの範囲
に調整することが最大の特徴である。なお、本発明にお
ける表面粗さとは、ＪＩＳ Ｂ０６０１に規定する方法
に準じて測定した十点平均粗さを云う。In the medical patch and the first-aid bandage of the present invention, the surface roughness of the olefin-based film used as the support base material is in a specific range, that is, the surface roughness on the print layer forming side is preferably in the range of 2 to 12 μm. The greatest feature is that it is adjusted in the range of 3 to 8 μm. In addition, the surface roughness in the present invention refers to a ten-point average roughness measured according to a method specified in JIS B0601.
【００３２】即ち、印刷層を形成する側の表面粗さを２
〜１２μｍの範囲に調整することによって、オレフィン
系フィルムをロール状に巻き取る際に巻き込まれた空気
の逃げ道が確保でき、その結果、フィルムに巻き皺を発
生させることがない。その結果、巻き皺による後工程で
の印刷不良（印刷欠け）を防止することができるのであ
る。That is, the surface roughness on the side on which the print layer is formed is 2
By adjusting the thickness to a range of about 12 μm, an escape path for air entrained when the olefin-based film is wound into a roll can be secured, and as a result, no wrinkles are generated on the film. As a result, it is possible to prevent poor printing (missing printing) in the subsequent process due to winding wrinkles.
【００３３】しかも、ロール状のオレフィン系フィルム
を巻き戻して片面に医療用粘着剤層を形成する場合、巻
き戻し時にフィルムの滑り性が良好となるので、特にフ
ィルム厚が薄い場合でのフィルム切れなどが起こらず、
また、巻き取りロールへの密着による巻き皺の発生もな
くなるのである。表面粗さが２μｍに満たない場合には
上記のような効果を発揮しがたく、１２μｍを超える表
面粗さでは上記効果は発揮するものの、印刷層を形成し
がたくなるのである。Furthermore, when a roll-shaped olefin-based film is rewound to form a medical pressure-sensitive adhesive layer on one side, the film has good slipperiness when rewound. Does not occur,
Also, the occurrence of wrinkles due to close contact with the take-up roll is eliminated. When the surface roughness is less than 2 μm, the above effects are hardly exhibited, and when the surface roughness is more than 12 μm, the above effects are exhibited, but the printed layer is hardly formed.
【００３４】また、本発明に用いるオレフィン系フィル
ムの表面粗さは、印刷層形成側は上記のように２〜１２
μｍの範囲に調整するが、他面側（粘着剤層形成側）の
表面粗さも２〜４０μｍ、好ましくは１０〜３０μｍの
範囲に調整することが好ましい。The surface roughness of the olefin-based film used in the present invention is 2 to 12 on the printing layer forming side as described above.
The thickness is adjusted to the range of μm, but the surface roughness on the other side (the side on which the pressure-sensitive adhesive layer is formed) is also preferably adjusted to the range of 2 to 40 μm, preferably 10 to 30 μm.
【００３５】即ち、オレフィン系フィルムの表面に医療
用粘着剤層を密着性よく、しかも強固に接着させる、つ
まりオレフィン系フィルムと医療用粘着剤層との投錨性
を良好にするためには、前記したようにフィルム表面に
コロナ放電処理や下塗り処理を施すことが好ましいが、
密着面積（接着面積）を増大させることも投錨力向上の
一手段である。従って、フィルム表面を荒らすことが効
果的であり、効果的な表面粗さとしては２μｍ以上であ
る。また、４０μｍを超える表面粗さの場合、投錨性は
良好となるが、反対表面の表面粗さに対しても影響し、
印刷用インクがきれいに印刷面に塗工できなくなるおそ
れがあり、これらのバランスから２〜４０μｍの範囲が
良好である。That is, in order to adhere the medical pressure-sensitive adhesive layer to the surface of the olefin-based film with good adhesion and firmly, that is, to improve the anchoring property between the olefin-based film and the medical pressure-sensitive adhesive layer, As described above, it is preferable to perform a corona discharge treatment or an undercoat treatment on the film surface,
Increasing the contact area (adhesion area) is also a means of improving the anchoring force. Therefore, it is effective to roughen the film surface, and the effective surface roughness is 2 μm or more. In the case of a surface roughness exceeding 40 μm, the anchoring property is good, but it also affects the surface roughness of the opposite surface,
There is a possibility that the printing ink may not be able to be applied to the printing surface neatly, and the range of 2 to 40 μm is favorable from these balances.
【００３６】また、本発明では製造工程での印刷適正と
作業性とを最適な状態で両立させるという点から、オレ
フィン系フィルムの表裏面の表面粗さが異なっているこ
とが好ましく、医療用粘着剤層を形成する側の表面粗さ
が印刷層を形成する側の表面粗さよりも大きくすること
が、医療用粘着剤層との投錨性確保の点でさらに好まし
いものである。In the present invention, it is preferable that the surface roughness of the front and back surfaces of the olefin-based film is different from the viewpoint that the printing adequacy and the workability in the manufacturing process are compatible in an optimum state. It is more preferable that the surface roughness on the side on which the agent layer is formed is larger than the surface roughness on the side on which the print layer is formed, from the viewpoint of securing anchorage with the medical adhesive layer.
【００３７】本発明の医療用貼付材および救急絆創膏を
製造する方法としては、例えば以下の方法が挙げられ
る。Examples of the method for producing the medical patch and the first-aid bandage of the present invention include the following methods.
【００３８】まず、オレフィン系フィルムを、カレンダ
ー押出法やインフレーション押出法などの方法によって
所定厚さに成形し、得られたオレフィン系フィルムの両
面を、エンボスロールなどの公知の手段によってその両
面の表面粗さを特定の範囲内に調整する。First, an olefin-based film is formed into a predetermined thickness by a method such as a calender extrusion method or an inflation extrusion method, and both surfaces of the obtained olefin-based film are surface-formed by a known means such as an embossing roll. Adjust the roughness within a specific range.
【００３９】次いで、得られたオレフィン系フィルムの
医療用粘着剤層形成側に、医療用粘着剤層形成用の粘着
剤溶液を直接塗布、乾燥する直写法によるか、もしくは
片面を剥離処理したセパレータの剥離処理面に、医療用
粘着剤溶液を塗工、乾燥して、所定厚さの医療用粘着剤
層を形成し、この粘着剤層をオレフィン系フィルムの表
面に転着する転写法によって医療用貼付材を得る。この
とき、粘着剤層とオレフィン系フィルムとの投錨性を向
上させるために、オレフィン系フィルムの粘着剤層形成
面にコロナ放電処理を施すことが好ましい。Next, a pressure-sensitive adhesive solution for forming a medical pressure-sensitive adhesive layer is directly applied to the side of the obtained olefin-based film on which the pressure-sensitive adhesive layer is formed, and dried by a direct printing method, or a separator having one surface subjected to release treatment. A medical pressure-sensitive adhesive solution is applied to the release-treated surface of, and dried to form a medical pressure-sensitive adhesive layer having a predetermined thickness, and the pressure-sensitive adhesive layer is transferred to the surface of an olefin-based film by a transfer method. To obtain a patch for use. At this time, in order to improve the anchoring property between the pressure-sensitive adhesive layer and the olefin-based film, it is preferable to perform a corona discharge treatment on the pressure-sensitive adhesive layer-formed surface of the olefin-based film.
【００４０】次に、表面粗さを２〜１２μｍの範囲に調
整したオレフィン系フィルム表面に、必要に応じて印刷
前にインクの密着性向上を目的としたコロナ放電処理を
施したのち、紫外線硬化型インクを用いて印刷インクを
塗工、乾燥、硬化し、片面に多色印刷層を設けた本発明
の医療用貼付材を作製する。Next, the surface of the olefin-based film having the surface roughness adjusted to the range of 2 to 12 μm is subjected to a corona discharge treatment for the purpose of improving the adhesion of the ink before printing, if necessary, followed by ultraviolet curing. A printing ink is applied using a mold ink, dried and cured to produce a medical patch of the present invention having a multicolor printing layer on one surface.
【００４１】医療用貼付材を用いて救急絆創膏を作製す
るには、上記にて作製した医療用貼付材（原反）の粘着
剤層表面の中央域に、ガーゼや不織布、織布、発泡体な
どの吸液性パッドを設け、さらにその表面を１枚もしく
は複数枚のセパレータを積層し、所定形状に裁断して本
発明の救急絆創膏を得ることができる。In order to prepare an emergency bandage using the medical patch, a gauze, a nonwoven fabric, a woven fabric, a foam, or the like is formed in the central region of the surface of the adhesive layer of the medical patch (raw material) prepared above. Or the like, and one or more separators are laminated on the surface thereof and cut into a predetermined shape to obtain an emergency bandage of the present invention.
【００４２】[0042]
【発明の効果】本発明の医療用貼付材および救急絆創膏
は、以上のように特定の表面粗さを有するオレフィン系
フィルムを用い、その表面に印刷層を形成したものであ
って、従来から使用されているポリ塩化ビニル系フィル
ムを用いた医療用貼付材の代替品として、柔軟性や伸縮
性などの特性を充分に発揮できるものである。特に、印
刷層形成に際してはフィルムに巻き皺の発生がなく作業
性に優れると共に、巻き皺発生による印刷不良もなく、
さらに使用中の印刷層の磨耗も少ないという効果を発揮
するのである。As described above, the medical patch and the first-aid bandage of the present invention use an olefin-based film having a specific surface roughness as described above and have a printed layer formed on the surface thereof. As a substitute for the medical patch using a polyvinyl chloride-based film, it can sufficiently exhibit properties such as flexibility and elasticity. In particular, when the print layer is formed, the film is excellent in workability without curling wrinkles, and there is no printing failure due to curling wrinkles,
Further, the effect of reducing the wear of the printing layer during use is exhibited.
【００４３】[0043]
【実施例】以下に本発明の実施例を示し、さらに具体的
に説明するが、本発明はこれらに限定されるものではな
く、本発明の技術的思想を逸脱しない範囲内で種々の応
用が可能である。EXAMPLES Examples of the present invention will be described below in more detail, but the present invention is not limited thereto, and various applications can be made without departing from the technical concept of the present invention. It is possible.
【００４４】実施例１ 酢酸ビニル含量２５重量％のエチレン−酢酸ビニル共重
合体１００重量部に対して、脂肪酸系滑剤１重量部を添
加し、１００〜１４０℃の温度下でカレンダー法によっ
て約８０ｇ／ｍ2 のシート状に成形した。Example 1 To 100 parts by weight of an ethylene-vinyl acetate copolymer having a vinyl acetate content of 25% by weight, 1 part by weight of a fatty acid-based lubricant was added, and about 80 g by calendering at a temperature of 100 to 140 ° C. / M 2 .
【００４５】次いで、得られたシートを７０〜１２０℃
の温度下で、印刷層形成面側は約５μｍの表面粗さを有
するロールで、粘着剤層形成側は約５μｍの表面粗さを
有するロールで圧着し、オレフィン系フィルム基材を作
製した。Next, the obtained sheet was heated at 70 to 120 ° C.
At a temperature of the above, the printing layer forming surface side was pressure-bonded with a roll having a surface roughness of about 5 μm, and the pressure-sensitive adhesive layer forming side was pressed with a roll having a surface roughness of about 5 μm to produce an olefin-based film substrate.
【００４６】一方、アクリル酸イソノニルエステル８５
重量部、酢酸ビニル１２重量部、アクリル酸３重量部か
らなる単量体混合物を、酢酸エチル６０重量部に溶解
し、重合開始剤としてのアゾビスイソブチロニトリル
０．３重量部を添加し、５５〜６５℃で約１０時間重合
反応を行い、そののち、酢酸エチルで希釈して、固形分
濃度が３０重量％の医療用粘着剤溶液を調製した。On the other hand, isononyl acrylate 85
A monomer mixture consisting of 12 parts by weight of vinyl acetate and 3 parts by weight of acrylic acid was dissolved in 60 parts by weight of ethyl acetate, and 0.3 part by weight of azobisisobutyronitrile as a polymerization initiator was added. The polymerization reaction was performed at 55 to 65 ° C. for about 10 hours, and then diluted with ethyl acetate to prepare a medical adhesive solution having a solid content of 30% by weight.
【００４７】片面にシリコーン樹脂で剥離処理を施した
セパレータの処理面に、上記にて調製した医療用粘着剤
溶液を、乾燥後の厚みが３５μｍとなるように塗布、乾
燥して医療用粘着剤を形成した。The medical pressure-sensitive adhesive solution prepared above is applied to the treated surface of the separator having one surface subjected to a release treatment with a silicone resin so that the thickness after drying becomes 35 μm, and dried to obtain a medical pressure-sensitive adhesive. Was formed.
【００４８】次に、前記にて作製したオレフィン系フィ
ルム基材の片面をコロナ放電処理し、この処理面が医療
用粘着剤層に接するように、上記医療用粘着剤層の表面
にオレフィンフィルム基材を圧着し、医療用貼付材を作
製した。Next, one surface of the olefin-based film base material prepared above was subjected to corona discharge treatment, and the surface of the medical pressure-sensitive adhesive layer was applied to the surface of the medical pressure-sensitive adhesive layer so that the treated surface was in contact with the medical pressure-sensitive adhesive layer. The material was crimped to produce a medical patch.
【００４９】得られた医療用貼付材の印刷層形成面に、
キャラクター印刷を多色印刷によって施し、その後救急
絆創膏に加工して、本発明の救急絆創膏を作製した。On the printed layer forming surface of the obtained medical patch,
Character printing was performed by multicolor printing, and then processed into an emergency bandage to produce an emergency bandage of the present invention.
【００５０】実施例２ 印刷層形成側にメタクリル酸メチル含量２５重量％のエ
チレン−メタクリル酸メチル共重合体１００重量部に低
密度ポリエチレン２５重量部を添加したシート、中間層
にメルトフロー速度２ｇ／１０分のスチレン−ブタジエ
ン−スチレンブロック共重合体１００重量部にブチルヒ
ドロキシトルエン１重量部を添加したシート、医療用粘
着剤層形成側にメタクリル酸メチル含量２５重量％のエ
チレン−メタクリル酸メチル共重合体からなるシートが
位置するように、１５０〜２００℃の温度下で３層同時
インフレーション法にて約８０ｇ／ｍ2 の３層積層のシ
ート状（厚み比率２０％／６０％／２０％）に成形し
た。Example 2 A sheet in which 25 parts by weight of low-density polyethylene was added to 100 parts by weight of an ethylene-methyl methacrylate copolymer having a methyl methacrylate content of 25% by weight on the print layer forming side, and a melt flow rate of 2 g / A sheet in which 1 part by weight of butylhydroxytoluene is added to 100 parts by weight of a styrene-butadiene-styrene block copolymer for 10 minutes, and an ethylene-methyl methacrylate copolymer having a methyl methacrylate content of 25% by weight is provided on the side where a medical adhesive layer is formed. At a temperature of 150 to 200 ° C., a three-layered sheet of about 80 g / m 2 (thickness ratio: 20% / 60% / 20%) is formed by a three-layer simultaneous inflation method so that the sheet made of the united sheet is located. Molded.
【００５１】上記にて作製したオレフィン系フィルム基
材を用いた以外は、実施例１と同様の医療用粘着剤を用
いて、救急絆創膏を作製した。An emergency bandage was prepared using the same medical pressure-sensitive adhesive as in Example 1 except that the olefin-based film substrate prepared above was used.
【００５２】実施例３ 中間層にメルトフロー速度３ｇ／１０分のスチレン−イ
ソプレン−スチレンブロック共重合体１００重量部にブ
チルヒドロキシトルエン１重量部、酸化チタン５重量部
を添加したシートを用いた以外は、実施例２と同様にし
て３層フィルムを作製した。Example 3 Except that a sheet obtained by adding 1 part by weight of butylhydroxytoluene and 5 parts by weight of titanium oxide to 100 parts by weight of a styrene-isoprene-styrene block copolymer in the intermediate layer at a melt flow rate of 3 g / 10 minutes was used. Prepared a three-layer film in the same manner as in Example 2.
【００５３】上記にて作製したオレフィン系フィルム基
材を用いた以外は、実施例１と同様の医療用粘着剤を用
いて、救急絆創膏を作製した。An emergency bandage was prepared using the same medical pressure-sensitive adhesive as in Example 1 except that the olefin-based film substrate prepared above was used.
【００５４】実施例４ 酢酸ビニル含量２５重量％のエチレン−酢酸ビニル共重
合体１００重量部に対して、脂肪酸系滑剤１重量部、酸
化チタン５重量部を添加し、１００〜１４０℃の温度下
でカレンダー法によって約８０ｇ／ｍ2 のシート状に成
形した。Example 4 1 part by weight of a fatty acid-based lubricant and 5 parts by weight of titanium oxide were added to 100 parts by weight of an ethylene-vinyl acetate copolymer having a vinyl acetate content of 25% by weight, and the mixture was heated at a temperature of 100 to 140 ° C. Into a sheet of about 80 g / m 2 by a calender method.
【００５５】次いで、得られたシートを７０〜１２０℃
の温度下で、印刷層形成面側は約５μｍの表面粗さを有
するロールで、粘着剤層形成側は約２０μｍの表面粗さ
を有するロールで圧着し、オレフィン系フィルム基材を
作製した。Next, the obtained sheet was heated at 70 to 120 ° C.
At a temperature of the above, the printing layer forming side was pressure-bonded with a roll having a surface roughness of about 5 μm, and the pressure-sensitive adhesive layer forming side was pressed with a roll having a surface roughness of about 20 μm to produce an olefin-based film substrate.
【００５６】上記にて作製したオレフィン系フィルム基
材を用いた以外は、実施例１と同様の医療用粘着剤を用
いて、救急絆創膏を作製した。An emergency bandage was prepared using the same medical pressure-sensitive adhesive as in Example 1 except that the olefin-based film substrate prepared above was used.
【００５７】実施例５ 実施例４にて得られたシートを７０〜１２０℃の温度下
で、印刷層形成面側は約１０μｍの表面粗さを有するロ
ールで、粘着剤層形成側は約５μｍの表面粗さを有する
ロールで圧着し、オレフィン系フィルム基材を作製し
た。Example 5 At 70 to 120 ° C., the sheet obtained in Example 4 was a roll having a surface roughness of about 10 μm on the printing layer forming side and about 5 μm on the pressure-sensitive adhesive layer forming side. The olefin-based film substrate was produced by pressure bonding with a roll having a surface roughness of.
【００５８】上記にて作製したオレフィン系フィルム基
材を用いた以外は、実施例４と同様の医療用粘着剤を用
いて、救急絆創膏を作製した。An emergency bandage was prepared using the same medical pressure-sensitive adhesive as in Example 4, except that the olefin-based film substrate prepared above was used.
【００５９】比較例１ 実施例４において、オレフィン系フィルム基材の両面
を、鏡面ロールで圧着して非常に平滑な表面（表面粗さ
約１μｍ）にした以外は、実施例４と同様にして、救急
絆創膏を作製した。Comparative Example 1 In the same manner as in Example 4, except that both surfaces of the olefin-based film substrate were pressed with a mirror-finished roll to a very smooth surface (surface roughness of about 1 μm). An emergency bandage was made.
【００６０】比較例２ 実施例４にて得られたシートを７０〜１２０℃の温度下
で、印刷層形成面側は約２０μｍの表面粗さを有するロ
ールで、粘着剤層形成側は約５μｍの表面粗さを有する
ロールで圧着して作製したオレフィン系フィルムを用い
た以外は、実施例４と同様の医療用粘着剤を用いて、救
急絆創膏を作製した。Comparative Example 2 At 70 to 120 ° C., the sheet obtained in Example 4 was a roll having a surface roughness of about 20 μm on the printing layer forming side and about 5 μm on the pressure-sensitive adhesive layer forming side. An emergency bandage was prepared using the same medical pressure-sensitive adhesive as in Example 4, except that an olefin-based film produced by pressure bonding with a roll having a surface roughness of was used.
【００６１】上記各実施例および比較例にて得られた救
急絆創膏について、以下に示す評価を行い、結果を表１
に示した。The following evaluations were carried out on the emergency bandages obtained in each of the above Examples and Comparative Examples, and the results are shown in Table 1.
It was shown to.
【００６２】＜製造時の作業性＞各実施例および比較例
の救急絆創膏を作製するに当たって、オレフィン系フィ
ルムや医療用貼付材原反をロール状に巻き取りする際、
およびコロナ放電処理後の巻き取り時に、気泡を抱き込
むことによる巻き皺の発生の度合いを調べた。判断基準
は以下の通りである。 ◎：巻き皺の発生なし。 〇：ごく軽微な巻き皺の発生がある。 ×：印刷不良を起こすような巻き皺の発生がある。<Workability at the time of production> In preparing the first-aid adhesive plasters of the respective examples and comparative examples, when the olefin-based film or the raw material of the medical patch is wound into a roll,
In addition, at the time of winding after the corona discharge treatment, the degree of occurrence of wrinkles due to the inclusion of bubbles was examined. The criteria are as follows. ◎: No winding wrinkles occurred. 〇: Very slight wrinkles occurred. X: Wrinkles that cause printing failure are generated.
【００６３】＜表面粗さ＞２３℃の雰囲気下で、ＪＩＳ
Ｂ０６０１に準じてオレフィン系フィルム表面に表面
粗さを測定した。測定装置は株式会社ミツトヨ製のサー
フテスト５０１を使用し、十点平均粗さを求めた。<Surface Roughness> JIS in an atmosphere of 23 ° C.
The surface roughness of the olefin-based film surface was measured according to B0601. As a measuring device, a surf test 501 manufactured by Mitutoyo Corporation was used, and the ten-point average roughness was determined.
【００６４】＜印刷性＞各実施例および比較例において
市販の印刷装置を用い、各医療用貼付材の表面に紫外線
硬化型インクを塗工、キュアーして４色のキャラクター
印刷を施した際、キャラクター印刷が鮮明に印刷できる
かを判定した。判定基準は以下の通りである。 ◎：印刷良好。 〇：わずかに印刷がぼやける。 ×：印刷が不鮮明。<Printability> In each of the examples and comparative examples, when a commercially available printing apparatus was used, the surface of each medical patch was coated with ultraviolet curable ink and cured to perform four-color character printing. It was determined whether character printing can be printed clearly. The criteria are as follows. A: Printing is good. 〇: Printing is slightly blurred. ×: Printing is unclear.
【００６５】[0065]
【表１】 [Table 1]
───────────────────────────────────────────────────── フロントページの続き (72)発明者 大平 治 大阪府茨木市下穂積１丁目１番２号 日東 電工株式会社内 ──────────────────────────────────────────────────の Continuation of front page (72) Inventor Osamu Ohira 1-1-2 Shimohozumi, Ibaraki-shi, Osaka Nitto Denko Corporation
Claims (14)
着剤層を形成し、他面に多色印刷層を形成してなる貼付
材であって、印刷層形成側のオレフィン系フィルム表面
の表面粗さ（十点平均粗さ）が２〜１２μｍであること
を特徴とする医療用貼付材。An adhesive material comprising a medical pressure-sensitive adhesive layer formed on one surface of an olefin-based film and a multicolor printing layer formed on the other surface, wherein the surface roughness of the olefin-based film surface on the printing layer-forming side is provided. A medical patch having a thickness (ten-point average roughness) of 2 to 12 μm.
ビニル共重合体フィルム、またはエチレン−メタクリル
酸メチル共重合体層／Ａ−Ｂ−Ａ型ブロック共重合体層
／エチレン−メタクリル酸メチル共重合体層からなる３
層フィルムである請求項１記載の医療用貼付材。2. The olefin-based film is an ethylene-vinyl acetate copolymer film or an ethylene-methyl methacrylate copolymer layer / ABA block copolymer layer / ethylene-methyl methacrylate copolymer layer. Consisting of 3
The medical patch according to claim 1, which is a layer film.
ビニル含量が１５〜２８重量％である請求項２記載の医
療用貼付材。3. The medical patch according to claim 2, wherein the ethylene-vinyl acetate copolymer has a vinyl acetate content of 15 to 28% by weight.
平均分子量が１×１０4〜１×１０5 で、分子量分布が
４以下で、かつメルトフローレートが３ｇ／１０分以下
である請求項２または３記載の医療用貼付材。4. The ethylene-vinyl acetate copolymer has a weight average molecular weight of 1 × 10 4 to 1 × 10 5 , a molecular weight distribution of 4 or less, and a melt flow rate of 3 g / 10 minutes or less. 4. The medical patch according to 2 or 3.
ン−ブタジエン−スチレンブロック共重合体、またはス
チレン−イソプレン−スチレンブロック共重合体である
請求項２記載の医療用貼付材。5. The medical patch according to claim 2, wherein the ABA type block copolymer is a styrene-butadiene-styrene block copolymer or a styrene-isoprene-styrene block copolymer.
層が、エチレン−メタクリル酸メチル共重合体と低密度
ポリエチレンを含有した層である請求項２記載の医療用
貼付材。6. The medical patch according to claim 2, wherein the ethylene-methyl methacrylate copolymer layer is a layer containing an ethylene-methyl methacrylate copolymer and low-density polyethylene.
層が、連続相としてのエチレン−メタクリル酸メチル共
重合体と、分散相としての低密度ポリエチレンからなる
ミクロドメイン構造（海島構造）を有する請求項６記載
の医療用貼付材。7. The ethylene-methyl methacrylate copolymer layer has a microdomain structure (sea-island structure) composed of an ethylene-methyl methacrylate copolymer as a continuous phase and a low-density polyethylene as a dispersed phase. 6. The medical patch according to 6.
れる請求項１記載の医療用貼付材。8. The medical patch according to claim 1, wherein the printing layer is formed from an ultraviolet curable ink.
フィルムの表面粗さが、２〜４０μｍである請求項１記
載の医療用貼付材。9. The medical patch according to claim 1, wherein the surface roughness of the olefin film on the side where the medical pressure-sensitive adhesive layer is formed is 2 to 40 μm.
表面粗さが、異なっている請求項１または９記載の医療
用貼付材。10. The medical patch according to claim 1, wherein the front and back surfaces of the olefin film have different surface roughness.
フィルムの表面粗さが、印刷層形成側のオレフィン系フ
ィルムの表面粗さよりも大きい請求項１０記載の医療用
貼付材。11. The medical patch according to claim 10, wherein the surface roughness of the olefin-based film on the side where the medical pressure-sensitive adhesive layer is formed is larger than the surface roughness of the olefin-based film on the side where the print layer is formed.
の含有によって白色を呈している請求項１〜１１記載の
医療用貼付材。12. The medical patch according to claim 1, wherein the olefin-based film has a white color due to the inclusion of a white filler.
被着してなる請求項１〜１２記載の医療用貼付材。13. The medical patch according to claim 1, wherein a separator is applied to the surface of the medical pressure-sensitive adhesive layer.
おける粘着剤層表面の中央域に、吸液性パッドを設けて
なる救急絆創膏。14. An emergency bandage which is provided with a liquid-absorbent pad in a central region of the surface of the pressure-sensitive adhesive layer in the medical patch according to claim 1.
Priority Applications (7)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP00717899A JP4465729B2 (en) | 1999-01-14 | 1999-01-14 | Medical patch and emergency bandage |
| US09/479,600 US6210704B1 (en) | 1999-01-14 | 2000-01-07 | Medical adhesive dressing and first-aid adhesive tape |
| CA002295244A CA2295244C (en) | 1999-01-14 | 2000-01-10 | Medical adhesive dressing and first-aid adhesive tape |
| EP00100194A EP1020196B1 (en) | 1999-01-14 | 2000-01-13 | Medical adhesive dressing and first-aid adhesive tape |
| DE60016050T DE60016050T2 (en) | 1999-01-14 | 2000-01-13 | Medical adhesive bandage and first aid tape |
| AT00100194T ATE283074T1 (en) | 1999-01-14 | 2000-01-13 | MEDICAL ADHESIVE DRESS AND FIRST AID TAPE |
| AU11347/00A AU762173B2 (en) | 1999-01-14 | 2000-01-14 | Medical adhesive dressing and first-aid adhesive tape |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP00717899A JP4465729B2 (en) | 1999-01-14 | 1999-01-14 | Medical patch and emergency bandage |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2000201967A true JP2000201967A (en) | 2000-07-25 |
| JP4465729B2 JP4465729B2 (en) | 2010-05-19 |
Family
ID=11658834
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP00717899A Expired - Lifetime JP4465729B2 (en) | 1999-01-14 | 1999-01-14 | Medical patch and emergency bandage |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP4465729B2 (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003010306A (en) * | 2001-06-28 | 2003-01-14 | Nitto Denko Corp | Medical tacky adhesive tape or sheet |
| JP2005006845A (en) * | 2003-06-18 | 2005-01-13 | Nitto Denko Corp | Pasting medicine |
| JP2006150072A (en) * | 2004-10-26 | 2006-06-15 | Sanyo Chem Ind Ltd | Wound dressing |
| JP2006320358A (en) * | 2005-05-17 | 2006-11-30 | Nitto Denko Corp | Film base material for adhesive skin patch and adhesive skin patch |
| US7678959B2 (en) | 2007-02-27 | 2010-03-16 | Nitto Denko Corporation | Film base material for adhesive skin patch and adhesive skin patch |
| JP2018042783A (en) * | 2016-09-15 | 2018-03-22 | 日東電工株式会社 | Laminate for adhesion to a living body |
-
1999
- 1999-01-14 JP JP00717899A patent/JP4465729B2/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003010306A (en) * | 2001-06-28 | 2003-01-14 | Nitto Denko Corp | Medical tacky adhesive tape or sheet |
| JP2005006845A (en) * | 2003-06-18 | 2005-01-13 | Nitto Denko Corp | Pasting medicine |
| JP2006150072A (en) * | 2004-10-26 | 2006-06-15 | Sanyo Chem Ind Ltd | Wound dressing |
| JP2006320358A (en) * | 2005-05-17 | 2006-11-30 | Nitto Denko Corp | Film base material for adhesive skin patch and adhesive skin patch |
| US7678959B2 (en) | 2007-02-27 | 2010-03-16 | Nitto Denko Corporation | Film base material for adhesive skin patch and adhesive skin patch |
| JP2018042783A (en) * | 2016-09-15 | 2018-03-22 | 日東電工株式会社 | Laminate for adhesion to a living body |
| WO2018051695A1 (en) * | 2016-09-15 | 2018-03-22 | 日東電工株式会社 | Laminate for affixation to body |
| US11576819B2 (en) | 2016-09-15 | 2023-02-14 | Nitto Denko Corporation | Laminate patchable to living body |
Also Published As
| Publication number | Publication date |
|---|---|
| JP4465729B2 (en) | 2010-05-19 |
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