JPH0867624A - Plaster - Google Patents

Plaster

Info

Publication number
JPH0867624A
JPH0867624A JP20503794A JP20503794A JPH0867624A JP H0867624 A JPH0867624 A JP H0867624A JP 20503794 A JP20503794 A JP 20503794A JP 20503794 A JP20503794 A JP 20503794A JP H0867624 A JPH0867624 A JP H0867624A
Authority
JP
Japan
Prior art keywords
plaster
adhesive layer
pressure
tacky adhesive
patch
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP20503794A
Other languages
Japanese (ja)
Inventor
Hiroshi Kuroda
広志 黒田
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sekisui Chemical Co Ltd
Original Assignee
Sekisui Chemical Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Sekisui Chemical Co Ltd filed Critical Sekisui Chemical Co Ltd
Priority to JP20503794A priority Critical patent/JPH0867624A/en
Publication of JPH0867624A publication Critical patent/JPH0867624A/en
Pending legal-status Critical Current

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  • Medicinal Preparation (AREA)

Abstract

PURPOSE: To suppress the peeling of a plaster from an end part or the development of a risen part during the use of the plaster and reduce the stamping losses in the production of the plaster by making the shape of the plaster to an equilateral hexagonal shape. CONSTITUTION: This plaster having a tacky adhesive layer on a supporter is obtained by making a shape of the supporter to an equilateral hexagonal shape and a retentivity of the adhesive layer to 1-30min. The apex of the hexagon of the supporter may be processed to have a roundness. The effect of preventing the peeling is more improved by such a rounding process. The tacky adhesive is, e.g. an acrylic tacky adhesive, a rubber-based tacky adhesive, a silicone-based tacky adhesive or a urethane-based tacky adhesive. The retentivity of the tacky adhesive layer is restricted to 1-30min. (measured values in conformity to JIS Z0237) because cohesion and adhesion are lowered to increase the risk of peeling of glue residue with the lowering of the retentivity and too strong cohesion and adhesive power induces irritation to skin with increasing of the retentivity.

Description

【発明の詳細な説明】Detailed Description of the Invention

【0001】[0001]

【産業上の利用分野】本発明は貼付剤に関する。FIELD OF THE INVENTION The present invention relates to a patch.

【0002】[0002]

【従来の技術】貼付剤には、粘着剤層に薬物を含有しな
いものと含有するものとがあり、粘着剤層に薬物を含有
しないものについては、体表面を被覆することにより創
傷の治癒効果を高めたり、さらに、水や外気から皮膚を
遮断することにより、細菌感染等を予防する効果があ
る。また、薬物を含有するものについては、粘着剤層や
薬物貯留層から薬物を皮膚へ経由して体内へ移行させる
ことによって、疾病等の治癒効果を持続的に発揮させる
ことができる。
2. Description of the Related Art There are adhesive patches that do not contain a drug in the adhesive layer and those that do not contain a drug in the adhesive layer. For those that do not contain a drug in the adhesive layer, a wound healing effect is obtained by coating the body surface. It also has the effect of preventing bacterial infection and the like by increasing the skin temperature and blocking the skin from water and the outside air. Further, for those containing a drug, the healing effect of diseases and the like can be continuously exhibited by transferring the drug from the adhesive layer or the drug reservoir layer to the body through the skin.

【0003】ところが、貼付剤の貼付・剥離時の皮膚刺
激によって、炎症・発赤・浮腫等の症状が発生すること
がある。これらの症状の発生を抑制する方法としては、
例えば、貼付剤の粘着力を低下させる方法が挙げられ
る。しかしながら、一般に粘着力を低下させることによ
って、貼付剤が皮膚から剥がれ易くなるために所定の時
間貼付するのが難しくなり、被覆による創傷の治癒効果
や細菌感染の予防効果、薬物の血中移行による治癒効果
等が低下するという問題点があった。
However, skin irritation at the time of applying / peeling the patch may cause symptoms such as inflammation, redness, and edema. As a method of suppressing the occurrence of these symptoms,
For example, a method of reducing the adhesive strength of the patch can be mentioned. However, generally, by reducing the adhesive strength, the patch becomes difficult to peel off from the skin for a predetermined period of time, and it becomes difficult to apply the patch for a predetermined period of time. There is a problem that the healing effect and the like decrease.

【0004】このような問題点を解決するために、貼付
剤の粘着力を低減しても容易に剥離しないような工夫を
施す方法が考えられる。例えば、方形の貼付剤では貼付
中にその四隅部から剥がれが起こることをしばしば経験
している。そこで、貼付剤の形状として隅部が全くない
か鋭角的な隅部のない形状を選択することにより、粘着
力をある程度低減しても貼付中の剥離を防止し、しかも
使用後の剥離が容易になるものと考えられる。
In order to solve such a problem, it is possible to consider a method in which a patch is not easily peeled even if the adhesive force of the patch is reduced. For example, square patches often experience peeling from their four corners during application. Therefore, by selecting a shape with no corners or no sharp corners as the shape of the patch, peeling during application can be prevented even if the adhesive strength is reduced to some extent, and peeling after use is easy. It is supposed to become.

【0005】具体的には、例えば、貼付中の剥がれを防
止する方法として、貼付剤の形状を円形とする方法が実
施されている。円形の貼付剤では、貼付時に隅部に集中
しても加わる張力が分散されるため、貼付剤の皮膚に貼
着しない浮き部の発生が抑制され、剥がれが抑制される
ものと考えられる。しかしながら、円形の貼付剤では、
製造時の打ち抜きロスが大量に発生するという問題点が
あった。
Specifically, for example, as a method for preventing peeling during sticking, a method in which the patch has a circular shape is implemented. In the case of a circular patch, even if it is concentrated in the corners during application, the applied tension is dispersed, so that it is considered that the occurrence of a floating portion that does not stick to the skin of the patch is suppressed and peeling is suppressed. However, with a circular patch,
There is a problem that a large amount of punching loss occurs during manufacturing.

【0006】[0006]

【発明が解決しようとする課題】本発明は、上記欠点に
鑑みてなされたものであって、その目的とするところ
は、貼付時の端部からの剥離や浮き部の発生を抑制し、
製造時の打ち抜き加工ロスの少ない貼付剤を提供するこ
とにある。
SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned drawbacks, and an object of the present invention is to suppress the peeling from the end portion and the occurrence of a floating portion during sticking,
An object of the present invention is to provide a patch having less punching loss during manufacturing.

【0007】[0007]

【課題を解決するための手段】[Means for Solving the Problems]

【0008】本発明の貼付剤は、支持体は各辺の長さが
相等しい六角形から形成され、該支持体上に保持力1〜
30分の粘着剤層が設けられている。
In the patch of the present invention, the support has a hexagonal shape in which the length of each side is equal to each other.
A 30-minute adhesive layer is provided.

【0009】上記支持体としては、柔軟性を有するもの
が好ましく、さらに粘着剤層に薬物やその他の添加物を
含有する場合は、不透過性や難透過性のものが好まし
い。このような支持体用素材としては、例えば、酢酸セ
ルロース、エチルセルロース、ポリエチレン、ポリプロ
ピレン、ポリ塩化ビニル、酢酸ビニル−塩化ビニル共重
合体、エチレン−メチルアクリレート共重合体、エチレ
ン−酢酸ビニル共重合体、エチレン−酢酸ビニル−一酸
化炭素共重合体、ポリ塩化ビニリデン、ポリウレタン、
ナイロン、ポリエチレンテレフタレート、ポリブチレン
テレフタレート等の樹脂フィルム:アルミニウムシート
等が挙げられ、これらは単層シートで用いられても、2
種以上の積層体として用いられてもよい。また、上記樹
脂フィルム又はアルミニウムシートと織布又は不織布と
の積層体であってもよい。
The support is preferably flexible, and when the pressure-sensitive adhesive layer contains a drug or other additive, it is preferably impermeable or hardly permeable. Examples of the material for such a support include cellulose acetate, ethyl cellulose, polyethylene, polypropylene, polyvinyl chloride, vinyl acetate-vinyl chloride copolymer, ethylene-methyl acrylate copolymer, ethylene-vinyl acetate copolymer, Ethylene-vinyl acetate-carbon monoxide copolymer, polyvinylidene chloride, polyurethane,
Resin films of nylon, polyethylene terephthalate, polybutylene terephthalate and the like: aluminum sheets and the like can be mentioned.
You may use as a laminated body of 1 or more types. Further, it may be a laminate of the above resin film or aluminum sheet and a woven or non-woven fabric.

【0010】上記支持体は、上記素材の打ち抜き加工等
によって得られる、各辺の長さの相等しい六角形から形
成される。このような六角形の支持体を選択することに
より、粘着剤層において皮膚からの水分吸収に伴う貼付
剤の反りによって生じる応力が分散され、貼付剤の剥離
が抑制されるものと考えられる。また、六角形の支持体
とすることにより、貼付剤の打ち抜き加工時におけるロ
スを減少することができる。
The support is formed by a hexagon obtained by punching the material and having the same side length. It is considered that by selecting such a hexagonal support, the stress generated by the warpage of the patch due to the absorption of water from the skin in the pressure-sensitive adhesive layer is dispersed, and the peeling of the patch is suppressed. Further, by using a hexagonal support, it is possible to reduce the loss during punching of the patch.

【0011】また、上記支持体には、六角形の頂点に丸
みを持たせるような加工が施されてもよい。このような
丸み加工によって、剥離防止の効果が一層向上する。
The support may be processed so that the apex of the hexagon is rounded. Such rounding further improves the effect of preventing peeling.

【0012】さらに、上記支持体の粘着剤層形成面に
は、必要に応じて、コロナ放電処理、薬品酸化処理、オ
ゾン処理などの表面処理が施されていてもよい。
Further, the pressure-sensitive adhesive layer-forming surface of the support may be subjected to surface treatment such as corona discharge treatment, chemical oxidation treatment, ozone treatment and the like, if necessary.

【0013】上記粘着剤層に用いられる粘着剤として
は、水に難溶性のものが好ましく、例えば、アクリル系
粘着剤、ゴム系粘着剤、シリコン系粘着剤、ウレタン形
粘着剤が等が挙げられるが、特にアクリル系粘着剤が好
ましい。
The pressure-sensitive adhesive used in the pressure-sensitive adhesive layer is preferably one that is poorly soluble in water, and examples thereof include acrylic pressure-sensitive adhesives, rubber-based pressure-sensitive adhesives, silicone-based pressure-sensitive adhesives, and urethane-type pressure-sensitive adhesives. However, acrylic adhesives are particularly preferable.

【0014】上記アクリル系粘着剤としては、例えば、
(メタ)アクリル酸アルキルエステルを主体とする重合
体が好適に使用され、(メタ)アクリル酸アルキエステ
ルと共重合可能な官能性モノマー、ビニル化合物等との
共重合体であってもよい。
Examples of the acrylic adhesive include, for example,
A polymer mainly composed of (meth) acrylic acid alkyl ester is preferably used, and may be a copolymer with a functional monomer capable of copolymerizing with (meth) acrylic acid alkyl ester, a vinyl compound or the like.

【0015】上記(メタ)アクリル酸アルキルエステル
としては、アルキル基の炭素数が少なくなると凝集力は
向上するが粘着力が低下し、多くなると粘着力は向上す
るが凝集力が低下するので、炭素数1〜18のものが好
ましく、例えば、(メタ)アクリル酸メチル、(メタ)
アクリル酸エチル、(メタ)アクリル酸ブチル、(メ
タ)アクリル酸イソブチル、(メタ)アクリル酸ヘキシ
ル、(メタ)アクリル酸2−エチルヘキシル、(メタ)
アクリル酸オクチル、(メタ)アクリル酸イソオクチ
ル、(メタ)アクリル酸デシル、(メタ)アクリル酸イ
ソデシル、(メタ)アクリル酸ドデシル、(メタ)アク
リル酸ラウリル、(メタ)アクリル酸ステアリル等が挙
げられ、これらは二種以上が併用されてもよい。
As the above-mentioned (meth) acrylic acid alkyl ester, when the carbon number of the alkyl group is small, the cohesive force is improved, but the adhesive force is decreased, and when the carbon number of the alkyl group is large, the adhesive force is improved but the cohesive force is decreased. Those having a number of 1 to 18 are preferable, for example, methyl (meth) acrylate, (meth)
Ethyl acrylate, butyl (meth) acrylate, isobutyl (meth) acrylate, hexyl (meth) acrylate, 2-ethylhexyl (meth) acrylate, (meth)
Octyl acrylate, isooctyl (meth) acrylate, decyl (meth) acrylate, isodecyl (meth) acrylate, dodecyl (meth) acrylate, lauryl (meth) acrylate, stearyl (meth) acrylate, and the like, Two or more of these may be used in combination.

【0016】上記官能性モノマーとしては、水酸基を有
するモノマー、カルボキシル基を有するモノマー、アミ
ド基を有するモノマー、アミノ基を有するモノマーなど
が挙げられる。
Examples of the functional monomer include a monomer having a hydroxyl group, a monomer having a carboxyl group, a monomer having an amide group, a monomer having an amino group, and the like.

【0017】上記水酸基を有するモノマーとしては、例
えば、(メタ)アクリル酸−2−ヒドロキシエチル、
(メタ)アクリル酸ヒドロキシプロピル等の(メタ)ア
クリル酸ヒドロキシアルキル等が好適に使用される。
Examples of the above-mentioned monomer having a hydroxyl group include 2-hydroxyethyl (meth) acrylate,
Hydroxyalkyl (meth) acrylate such as hydroxypropyl (meth) acrylate is preferably used.

【0018】また、上記カルボキシル基を有するモノマ
ーとしては、例えば、(メタ)アクリル酸などのα,β
−不飽和カルボン酸;マレイン酸ブチルなどのマレイン
酸モノアルキルエステル;(無水)マレイン酸、フマル
酸、クロトン酸等が好適に使用される。
Examples of the monomer having a carboxyl group include α, β such as (meth) acrylic acid.
-Unsaturated carboxylic acid; maleic acid monoalkyl ester such as butyl maleate; (anhydrous) maleic acid, fumaric acid, crotonic acid, etc. are preferably used.

【0019】アミド基を有するモノマーとしては、例え
ば、アクリルアミド、ジメチルアクリルアミド、ジエチ
ルアクリルアミドなどのアルキル(メタ)アクリルアミ
ド;ブトキシメチルアクリルアミド、エトキシメチルア
クリルアミドなどのアルキルエーテルメチロール(メ
タ)アクリルアミド;ジアセトンアクリルアミド等が好
適に使用される。
Examples of the amide group-containing monomer include alkyl (meth) acrylamides such as acrylamide, dimethylacrylamide and diethylacrylamide; alkyl ether methylol (meth) acrylamides such as butoxymethylacrylamide and ethoxymethylacrylamide; diacetone acrylamide. It is preferably used.

【0020】アミノ基を有するモノマーとしては、例え
ば、ジメチルアミノエチルアクリレート等が好適に使用
される。
As the monomer having an amino group, for example, dimethylaminoethyl acrylate is preferably used.

【0021】上記ビニル化合物としては、酢酸ビニル、
スチレン、α−メチルスチレン、N−ビニル−2−ピロ
リドン、塩化ビニル、アクリロニトリル、エチレン、プ
ロピレン、ブタジエン等が挙げられ、これらが共重合さ
れてもよい。
As the vinyl compound, vinyl acetate,
Examples thereof include styrene, α-methylstyrene, N-vinyl-2-pyrrolidone, vinyl chloride, acrylonitrile, ethylene, propylene and butadiene, which may be copolymerized.

【0022】上記(メタ)アクリル酸アルキエステルを
主体とする(共)重合体は、通常、重合開始剤の存在下
で上述のモノマーを配合して溶液重合を行うことにより
調製される。溶液重合を行う場合は、所定量の各種モノ
マーに酢酸エチル又はその他の重合溶媒を加え、攪拌装
置及び冷却還流装置を備えた反応器中で、アゾビス系、
過酸化物系等の重合開始剤の存在下、窒素雰囲気中で7
0〜90℃、8〜40時間反応させればよい。また、モ
ノマーは一括投入又は分割投入のいずれの方法でもよ
い。
The (co) polymer mainly composed of the (meth) acrylic acid alkyl ester is usually prepared by blending the above-mentioned monomers in the presence of a polymerization initiator and carrying out solution polymerization. When performing solution polymerization, ethyl acetate or other polymerization solvent is added to a predetermined amount of various monomers, in an reactor equipped with a stirrer and a cooling reflux device, azobis,
7 in a nitrogen atmosphere in the presence of a polymerization initiator such as a peroxide type.
The reaction may be performed at 0 to 90 ° C for 8 to 40 hours. Further, the monomer may be charged all at once or dividedly.

【0023】上記アゾビス系重合開始剤としては、2,
2−アゾビス−イソ−ブチロニトリル、1,1'-アゾビ
ス(シクロヘキサン−1−カルボニトリル)、2,2'-
アゾビス(2,4−ジメチルバレリニトリル)等が挙げ
られ、過酸化物系重合開始剤としては、過酸化ラウロイ
ル、過酸化ベンゾイル、ジ(tert−ブチル)パーオ
キサイド等が挙げられる。
As the azobis type polymerization initiator, 2,
2-azobis-iso-butyronitrile, 1,1'-azobis (cyclohexane-1-carbonitrile), 2,2'-
Examples thereof include azobis (2,4-dimethylvalerinitrile), and examples of the peroxide-based polymerization initiator include lauroyl peroxide, benzoyl peroxide, di (tert-butyl) peroxide, and the like.

【0024】さらに、上記アクリル系粘着剤には、必要
に応じて、粘着付与剤、可塑剤等が添加されてもよい。
Further, a tackifier, a plasticizer, etc. may be added to the acrylic pressure-sensitive adhesive as required.

【0025】上記ゴム系粘着剤はゴム弾性体を主体とす
るのが好ましく、ゴム弾性体としては、例えば、シス−
1,4−イソプレン(天然ゴム)、スチレン−イソプレ
ン−スチレンブロック共重合体、ポリイソプレン、ポリ
ブテン、ポリイソブチレン、エチレン−酢酸ビニル共重
合体等が挙げられる。
The above-mentioned rubber-based pressure-sensitive adhesive is preferably composed mainly of a rubber elastic body.
1,4-isoprene (natural rubber), styrene-isoprene-styrene block copolymer, polyisoprene, polybutene, polyisobutylene, ethylene-vinyl acetate copolymer and the like can be mentioned.

【0026】上記ゴム系粘着剤には、必要に応じて、テ
ルペン樹脂やロジン樹脂等の粘着付与剤、軟化剤、充填
剤、老化防止剤等が添加されてもよい。
If necessary, a tackifier such as a terpene resin or a rosin resin, a softening agent, a filler, an antiaging agent, etc. may be added to the rubber-based pressure-sensitive adhesive.

【0027】上記シリコン系粘着剤としては、ポリジメ
チルシロキサン等を主成分とするものが好ましい。
The silicone-based pressure-sensitive adhesive is preferably one containing polydimethylsiloxane as a main component.

【0028】上記粘着剤には、必要に応じて、エストラ
ジオール、酢酸ノルエチステロン、デソゲストレル等の
ステロイド化合物;硝酸イソソルビド等の硝酸エステル
類;インドメタシン、フルルビプロフェン等の消炎鎮痛
剤などの薬物が添加されてもよい。
If necessary, steroid compounds such as estradiol, norethisterone acetate, and desogestrel; nitrate esters such as isosorbide nitrate; drugs such as anti-inflammatory analgesics such as indomethacin and flurbiprofen are added to the above-mentioned adhesive. May be.

【0029】本発明の貼付剤は、上記粘着剤と、必要に
応じて、薬物及びその他の添加剤を含有する粘着剤組成
物を、支持体上に塗工、乾燥して粘着剤層を形成するこ
とにより得られる。支持体上に粘着剤層を形成する方法
としては、溶剤塗工法、ホットメルト塗工法、電子線硬
化エマルジョン塗工法等の従来公知の粘着テ−プの製造
方法が使用可能であるが、特に溶剤塗工法が好ましい。
In the patch of the present invention, a pressure-sensitive adhesive composition containing the above-mentioned pressure-sensitive adhesive and, if necessary, a drug and other additives is coated on a support and dried to form a pressure-sensitive adhesive layer. It is obtained by doing. As the method for forming the pressure-sensitive adhesive layer on the support, a solvent coating method, a hot melt coating method, an electron beam curing emulsion coating method or the like, which is a conventionally known method for producing a pressure-sensitive adhesive tape, can be used. The coating method is preferred.

【0030】また、離型紙上に粘着剤組成物を塗布、乾
燥して一旦粘着剤層を形成した後、支持体上に転写、密
着してもよい。この場合、離型紙は使用時まで貼付剤の
粘着剤層を保護するために用いられてもよい。
Further, the pressure-sensitive adhesive composition may be applied onto release paper and dried to once form a pressure-sensitive adhesive layer, and then transferred and adhered onto a support. In this case, the release paper may be used to protect the adhesive layer of the patch until use.

【0031】上記粘着剤層の厚さは、使用目的によって
異なるが、薄くなると粘着力が低下すると共に薬物量が
不足し、厚くなると薬物の拡散が不十分となるので、1
0〜200μmが好ましい。
The thickness of the above-mentioned pressure-sensitive adhesive layer varies depending on the purpose of use, but if it becomes thin, the adhesive strength will decrease and the amount of the drug will be insufficient, and if it becomes thick, the diffusion of the drug will be insufficient.
0 to 200 μm is preferable.

【0032】上記粘着剤層の保持力は、低くなると凝集
力及び粘着力が低下して剥離や糊残りが起こり易くな
り、高くなると凝集力及び粘着力が強くなり過ぎて皮膚
刺激を生じるので、1〜30分に限定される。尚、上記
保持力は、JIS Z0237に準拠して測定された値
である。
When the holding power of the pressure-sensitive adhesive layer becomes low, the cohesive force and the adhesive force are lowered and peeling and adhesive residue are apt to occur, and when it becomes high, the cohesive force and the adhesive force become too strong and skin irritation occurs. Limited to 1 to 30 minutes. The holding power is a value measured according to JIS Z0237.

【0033】[0033]

【実施例】次に、本発明の実施例を説明する。粘着剤(1)の合成 アクリル酸2−エチルヘキシルとN−ビニル−2−ピロ
リドンとをモル比65:35で含有する混合液100重
量部及び酢酸エチル400重量部を攪拌装置および冷却
装置付きセパラブルフラスコに仕込み、攪拌及び窒素置
換しながら60℃に昇温した後、反応系中に過酸化ラウ
ロイル2重量部をシクロヘキサン100重量部に溶解し
た溶液を10分割し、その1をセパラブルフラスコへ添
加し重合を開始した。残部の9を反応開始後5時間目か
ら1時間間隔で添加し、添加終了後さらに19時間反応
を行い粘着剤を合成した。なお、粘度調節のため反応開
始後5時間ごとに酢酸エチルを50重量部ずつ5回添加
した。反応終了後に冷却し、固形分35重量%になるよ
うに酢酸エチルを添加した。
Next, embodiments of the present invention will be described. Synthesis of Adhesive (1) 100 parts by weight of a mixed solution containing 2-ethylhexyl acrylate and N-vinyl-2-pyrrolidone at a molar ratio of 65:35 and 400 parts by weight of ethyl acetate are separable with a stirrer and a cooling device. After charging to a flask and heating to 60 ° C. while stirring and purging with nitrogen, a solution of 2 parts by weight of lauroyl peroxide in 100 parts by weight of cyclohexane was divided into 10 parts, and the 1 was added to a separable flask. Then, the polymerization was started. The remaining 9 was added at 1 hour intervals from the 5th hour after the start of the reaction, and after the addition was completed, the reaction was continued for 19 hours to synthesize an adhesive. To adjust the viscosity, 50 parts by weight of ethyl acetate was added 5 times every 5 hours after the reaction was started. After completion of the reaction, the mixture was cooled, and ethyl acetate was added so that the solid content was 35% by weight.

【0034】粘着剤(2)の合成 メタクリル酸ドデシル10モル%、アクリル酸2−エチ
ルヘキシル10モル%及びメタクリル酸2−エチルヘキ
シル80モル%となるようにセパラブルフラスコに仕込
み、酢酸エチルを重合終了時の固形分濃度が50重量%
となるように徐々に加えた。この溶液を窒素雰囲気下、
70℃に昇温した後、反応系中に過酸化ラウロイルの酢
酸エチル溶液を2時間毎に少量ずつ添加し、40時間重
合を行い粘着剤を得た。
Synthesis of Adhesive (2) 10 mol% of dodecyl methacrylate, 10 mol% of 2-ethylhexyl acrylate and 80 mol% of 2-ethylhexyl methacrylate were charged in a separable flask, and ethyl acetate was added at the end of the polymerization. Solid content of 50% by weight
Gradually added so that. This solution under a nitrogen atmosphere,
After the temperature was raised to 70 ° C., an ethyl acetate solution of lauroyl peroxide was added little by little to the reaction system every 2 hours, and polymerization was performed for 40 hours to obtain an adhesive.

【0035】粘着剤(3)の調製 天然ゴム55重量部及びテルペン樹脂45重量部をセパ
ラブルフラスコに入れ、固形分濃度が15重量%になる
ようにTHFを加えて一昼夜攪拌して粘着剤を調製し
た。
Preparation of Adhesive (3) 55 parts by weight of natural rubber and 45 parts by weight of terpene resin were placed in a separable flask, THF was added so that the solid content concentration was 15% by weight, and the mixture was stirred for 24 hours to give an adhesive. Prepared.

【0036】粘着剤(4) 市販のシリコン系粘着剤(ダウコーニング社製「サイラ
テックス355」)を使用した。
Adhesive (4) A commercially available silicone-based adhesive (“Silatex 355” manufactured by Dow Corning) was used.

【0037】(実施例1〜12)表1に示した所定量の
粘着剤及び薬物を混合し、さらにエタノールを固形分濃
度が30重量%となるように加えて粘着剤組成物を得
た。得られた粘着剤組成物を、シリコン離型処理された
ポリエチレンテレフタレートフィルム(厚さ40μm)
上に塗布後、乾燥して厚さ60μmの粘着剤層を形成し
た。次いで、ポリエチレンテレフタレートフィルムとエ
チレン酢酸ビニル共重合体フィルムの積層体(厚さ50
μm)基材のエチレン酢酸ビニル共重合体フィルム側に
粘着剤層を転写、密着させた後、各辺の長さが1cmの
正六角形となるように打ち抜き、貼付剤を得た。
(Examples 1 to 12) The pressure-sensitive adhesives and drugs shown in Table 1 were mixed, and ethanol was added to the mixture so that the solid content concentration was 30% by weight to obtain pressure-sensitive adhesive compositions. The obtained pressure-sensitive adhesive composition was treated with a silicone release treatment polyethylene terephthalate film (thickness 40 μm)
After coating on the above, it dried and the 60-micrometer-thick adhesive layer was formed. Next, a laminate of polyethylene terephthalate film and ethylene vinyl acetate copolymer film (thickness 50
(μm) A pressure-sensitive adhesive layer was transferred to and adhered to the side of the ethylene vinyl acetate copolymer film of the substrate, and then punched out to form a regular hexagon having a side length of 1 cm to obtain a patch.

【0038】[0038]

【表1】 [Table 1]

【0039】(比較例1〜12)比較例1〜12の粘着
剤組成物として、実施例1〜12にそれぞれ対応するも
のを使用して、実施例1と同様にして粘着剤層を形成
し、この粘着剤層をポリエチレンテレフタレートフィル
ムとエチレン酢酸ビニル共重合体フィルムの積層体(厚
さ50μm)基材のエチレン酢酸ビニル共重合体フィル
ム側に転写、密着させた後、直径が2cmの円形となる
ように打ち抜き、貼付剤を得た。
Comparative Examples 1 to 12 As the pressure-sensitive adhesive compositions of Comparative Examples 1 to 12, those corresponding to Examples 1 to 12 were used to form pressure-sensitive adhesive layers in the same manner as in Example 1. This adhesive layer was transferred to and adhered to the ethylene vinyl acetate copolymer film side of the laminate (thickness 50 μm) substrate of the polyethylene terephthalate film and the ethylene vinyl acetate copolymer film, and then formed into a circle with a diameter of 2 cm. It was punched out so as to obtain a patch.

【0040】(比較例13〜24)実施例13〜24の
粘着剤組成物として、実施例1〜12にそれぞれ対応す
るものを使用して、実施例1と同様にして粘着剤層を形
成し、この粘着剤層をポリエチレンテレフタレートフィ
ルムとエチレン酢酸ビニル共重合体フィルムの積層体
(厚さ50μm)基材のエチレン酢酸ビニル共重合体フ
ィルム側に転写、密着させた後、直径が2cmの正方形
となるように打ち抜き、貼付剤を得た。
(Comparative Examples 13 to 24) As pressure sensitive adhesive compositions of Examples 13 to 24, those corresponding to Examples 1 to 12 were used to form pressure sensitive adhesive layers in the same manner as in Example 1. The adhesive layer was transferred to and adhered to the ethylene vinyl acetate copolymer film side of the laminate (thickness 50 μm) substrate of the polyethylene terephthalate film and the ethylene vinyl acetate copolymer film, and then formed into a square with a diameter of 2 cm. It was punched out so as to obtain a patch.

【0041】(比較例25〜32)表2に示した所定量
のの粘着剤及び薬物を混合し、さらにエタノールを固形
分濃度が30重量%となるように加えて粘着剤組成物を
得た。この粘着剤組成物を使用して、実施例1と同様に
して粘着剤層を形成し、この粘着剤層をポリエチレンテ
レフタレートフィルムとエチレン酢酸ビニル共重合体フ
ィルムの積層体(厚さ50μm)基材のエチレン酢酸ビ
ニル共重合体フィルム側に転写、密着させた後、各辺の
長さが1cmの正六角形となるように打ち抜き、貼付剤
を得た。尚、比較例25〜28には、吸収促進剤として
パルミチン酸イソプロピルを40重量%含有させた。
(Comparative Examples 25 to 32) The pressure-sensitive adhesives and drugs in the predetermined amounts shown in Table 2 were mixed, and ethanol was added to the mixture so that the solid content concentration became 30% by weight to obtain pressure-sensitive adhesive compositions. . Using this pressure-sensitive adhesive composition, a pressure-sensitive adhesive layer was formed in the same manner as in Example 1, and the pressure-sensitive adhesive layer was a laminate (thickness: 50 μm) substrate of a polyethylene terephthalate film and an ethylene vinyl acetate copolymer film. After being transferred to and adhered to the ethylene-vinyl acetate copolymer film side, the patch was obtained by punching so as to form a regular hexagon with each side having a length of 1 cm. In Comparative Examples 25 to 28, 40% by weight of isopropyl palmitate was contained as an absorption promoter.

【0042】[0042]

【表2】 [Table 2]

【0043】上記実施例及び比較例で得られた貼付剤に
関し以下の測定、評価を行い、その結果を表3〜11に示
した。 (1)保持力 JIS Z0237に準拠して保持力の測定を行った。
The patches obtained in the above Examples and Comparative Examples were subjected to the following measurements and evaluations, and the results are shown in Tables 3-11. (1) Holding power The holding power was measured according to JIS Z0237.

【0044】[0044]

【表3】 [Table 3]

【0045】(2)貼付度 健常人男子10名の上腕部に貼付剤を貼付し、貼付後3
0分及び24時間における貼付度を下記の判定基準に従
って判定し、表中に各判定値に対応する人数を記した。 1:エッジ部においても浮きがなく完全に貼着してい
た。 2:エッジ部において浮きが認められた。 3:エッジ部の他に総面積の50%以内の浮きが認めら
れた。 4:総面積の50%以上に浮きが認められた。 5:貼付中に剥落した。
(2) Adhesion Degree The adhesive agent was applied to the upper arm of 10 healthy males, and after application 3
The degree of sticking at 0 minutes and 24 hours was judged according to the following judgment criteria, and the number of people corresponding to each judgment value is shown in the table. 1: There was no lift even at the edge part, and it was completely attached. 2: Lifting was recognized at the edge part. 3: In addition to the edge portion, floating within 50% of the total area was recognized. 4: Floating was recognized in 50% or more of the total area. 5: Peeled off during application.

【0046】[0046]

【表4】 [Table 4]

【0047】[0047]

【表5】 [Table 5]

【0048】[0048]

【表6】 [Table 6]

【0049】[0049]

【表7】 [Table 7]

【0050】(3)皮膚刺激性 健常人男子10名の上腕部に貼付剤を24時間貼付した
後剥離し、剥離後30分及び24時間における皮膚刺激
性を下記の判定基準に従って判定し、表中に各判定値に
対応する人数を記した。 1:発赤、水泡が認められなかった。 2:かすかに紅斑が認められた。 3:小水泡を伴わない紅斑、丘疹が認められた。 4:小水泡を伴う紅斑、丘疹が認められた。 5:大きな水泡の発生が認められた。
(3) Skin irritation: The patch was applied to the upper arm of 10 healthy men for 24 hours and then peeled off, and the skin irritation at 30 minutes and 24 hours after peeling was judged according to the following criteria, and The number of people corresponding to each judgment value is described therein. 1: Redness and blisters were not observed. 2: A slight erythema was observed. 3: Erythema and papules without small blisters were observed. 4: Erythema with papules and papules were observed. 5: Generation of large water bubbles was observed.

【0051】[0051]

【表8】 [Table 8]

【0052】[0052]

【表9】 [Table 9]

【0053】[0053]

【表10】 [Table 10]

【0054】[0054]

【表11】 [Table 11]

【0055】[0055]

【発明の効果】本発明の貼付剤の構成は、上述の通りで
あり、その形状を各辺の長さが相等しい六角形とするこ
とにより、貼付剤使用中における端部からの剥離や浮き
部の発生を抑制することができ、さらに貼付剤製造時の
打ち抜き加工ロスを減少することができる。
The composition of the patch of the present invention is as described above, and by making the shape a hexagon having equal lengths on each side, peeling or floating from the end portion during use of the patch is achieved. It is possible to suppress the occurrence of parts, and further reduce the punching process loss at the time of manufacturing the patch.

Claims (1)

【特許請求の範囲】[Claims] 【請求項1】支持体上に粘着剤層が設けられた貼付剤で
あって、該支持体は各辺の長さが相等しい六角形から形
成され、該粘着剤層の保持力が1〜30分であることを
特徴とする貼付剤。
1. A patch having a pressure-sensitive adhesive layer provided on a support, wherein the support is formed of a hexagon having equal sides, and the pressure-sensitive adhesive layer has a holding power of 1 to 1. A patch which is 30 minutes.
JP20503794A 1994-08-30 1994-08-30 Plaster Pending JPH0867624A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP20503794A JPH0867624A (en) 1994-08-30 1994-08-30 Plaster

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP20503794A JPH0867624A (en) 1994-08-30 1994-08-30 Plaster

Publications (1)

Publication Number Publication Date
JPH0867624A true JPH0867624A (en) 1996-03-12

Family

ID=16500406

Family Applications (1)

Application Number Title Priority Date Filing Date
JP20503794A Pending JPH0867624A (en) 1994-08-30 1994-08-30 Plaster

Country Status (1)

Country Link
JP (1) JPH0867624A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007289386A (en) * 2006-04-25 2007-11-08 Yasushi Ishida Adhesive film for health and medical use in right hexagonal shape
CN113736414A (en) * 2021-09-29 2021-12-03 韦尔通(厦门)科技股份有限公司 Dual-curing reaction type polyurethane hot melt adhesive and preparation method thereof

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007289386A (en) * 2006-04-25 2007-11-08 Yasushi Ishida Adhesive film for health and medical use in right hexagonal shape
CN113736414A (en) * 2021-09-29 2021-12-03 韦尔通(厦门)科技股份有限公司 Dual-curing reaction type polyurethane hot melt adhesive and preparation method thereof
CN113736414B (en) * 2021-09-29 2022-04-12 韦尔通(厦门)科技股份有限公司 Dual-curing reaction type polyurethane hot melt adhesive and preparation method thereof

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