JPH031450Y2 - - Google Patents
Info
- Publication number
- JPH031450Y2 JPH031450Y2 JP3215084U JP3215084U JPH031450Y2 JP H031450 Y2 JPH031450 Y2 JP H031450Y2 JP 3215084 U JP3215084 U JP 3215084U JP 3215084 U JP3215084 U JP 3215084U JP H031450 Y2 JPH031450 Y2 JP H031450Y2
- Authority
- JP
- Japan
- Prior art keywords
- thin film
- polybutadiene
- base material
- aqueous
- bonding 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.)
- Expired
Links
- 239000010409 thin film Substances 0.000 claims description 29
- 239000000463 material Substances 0.000 claims description 27
- 239000006260 foam Substances 0.000 claims description 26
- 229920002589 poly(vinylethylene) polymer Polymers 0.000 claims description 18
- 238000005187 foaming Methods 0.000 claims description 8
- 239000000126 substance Substances 0.000 claims description 5
- 239000010410 layer Substances 0.000 description 19
- 239000011505 plaster Substances 0.000 description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 11
- 239000004745 nonwoven fabric Substances 0.000 description 8
- 230000035699 permeability Effects 0.000 description 8
- 239000002759 woven fabric Substances 0.000 description 8
- 239000005062 Polybutadiene Substances 0.000 description 7
- 229920002857 polybutadiene Polymers 0.000 description 7
- 239000004744 fabric Substances 0.000 description 6
- 239000000853 adhesive Substances 0.000 description 5
- 230000001070 adhesive effect Effects 0.000 description 5
- 230000007423 decrease Effects 0.000 description 5
- 239000011347 resin Substances 0.000 description 5
- 229920005989 resin Polymers 0.000 description 5
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 4
- 239000010408 film Substances 0.000 description 4
- 239000000314 lubricant Substances 0.000 description 4
- 238000010521 absorption reaction Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 229920002803 thermoplastic polyurethane Polymers 0.000 description 3
- 239000004925 Acrylic resin Substances 0.000 description 2
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 2
- 239000006096 absorbing agent Substances 0.000 description 2
- 239000002390 adhesive tape Substances 0.000 description 2
- 230000003110 anti-inflammatory effect Effects 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 229920001971 elastomer Polymers 0.000 description 2
- 229920000578 graft copolymer Polymers 0.000 description 2
- 230000000704 physical effect Effects 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- -1 polypropylene Polymers 0.000 description 2
- 239000004800 polyvinyl chloride Substances 0.000 description 2
- 229920000915 polyvinyl chloride Polymers 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- 239000000377 silicon dioxide Substances 0.000 description 2
- 229920003051 synthetic elastomer Polymers 0.000 description 2
- 229920003002 synthetic resin Polymers 0.000 description 2
- 239000000057 synthetic resin Substances 0.000 description 2
- 229920002725 thermoplastic elastomer Polymers 0.000 description 2
- BQCIDUSAKPWEOX-UHFFFAOYSA-N 1,1-Difluoroethene Chemical compound FC(F)=C BQCIDUSAKPWEOX-UHFFFAOYSA-N 0.000 description 1
- VSKJLJHPAFKHBX-UHFFFAOYSA-N 2-methylbuta-1,3-diene;styrene Chemical compound CC(=C)C=C.C=CC1=CC=CC=C1.C=CC1=CC=CC=C1 VSKJLJHPAFKHBX-UHFFFAOYSA-N 0.000 description 1
- 229920000178 Acrylic resin Polymers 0.000 description 1
- 239000005995 Aluminium silicate Substances 0.000 description 1
- 239000004709 Chlorinated polyethylene Substances 0.000 description 1
- 208000034656 Contusions Diseases 0.000 description 1
- 229920000742 Cotton Polymers 0.000 description 1
- 239000004593 Epoxy Substances 0.000 description 1
- 108010010803 Gelatin Proteins 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 239000004793 Polystyrene Substances 0.000 description 1
- 239000004372 Polyvinyl alcohol Substances 0.000 description 1
- 229920002125 Sokalan® Polymers 0.000 description 1
- 208000010040 Sprains and Strains Diseases 0.000 description 1
- XTXRWKRVRITETP-UHFFFAOYSA-N Vinyl acetate Chemical compound CC(=O)OC=C XTXRWKRVRITETP-UHFFFAOYSA-N 0.000 description 1
- 235000012211 aluminium silicate Nutrition 0.000 description 1
- 230000000202 analgesic effect Effects 0.000 description 1
- 229940035676 analgesics Drugs 0.000 description 1
- 239000000730 antalgic agent Substances 0.000 description 1
- 239000002260 anti-inflammatory agent Substances 0.000 description 1
- 229940124599 anti-inflammatory drug Drugs 0.000 description 1
- 239000000440 bentonite Substances 0.000 description 1
- 229910000278 bentonite Inorganic materials 0.000 description 1
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 description 1
- 229910000019 calcium carbonate Inorganic materials 0.000 description 1
- 239000011247 coating layer Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000003292 diminished effect Effects 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 239000000839 emulsion Substances 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 229920001821 foam rubber Polymers 0.000 description 1
- 229920000159 gelatin Polymers 0.000 description 1
- 239000008273 gelatin Substances 0.000 description 1
- 235000019322 gelatine Nutrition 0.000 description 1
- 235000011852 gelatine desserts Nutrition 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 229920001477 hydrophilic polymer Polymers 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 description 1
- 238000002386 leaching Methods 0.000 description 1
- ZLNQQNXFFQJAID-UHFFFAOYSA-L magnesium carbonate Chemical compound [Mg+2].[O-]C([O-])=O ZLNQQNXFFQJAID-UHFFFAOYSA-L 0.000 description 1
- 239000001095 magnesium carbonate Substances 0.000 description 1
- 229910000021 magnesium carbonate Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- QLOAVXSYZAJECW-UHFFFAOYSA-N methane;molecular fluorine Chemical compound C.FF QLOAVXSYZAJECW-UHFFFAOYSA-N 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229920006173 natural rubber latex Polymers 0.000 description 1
- 229920001084 poly(chloroprene) Polymers 0.000 description 1
- 229920001495 poly(sodium acrylate) polymer Polymers 0.000 description 1
- 239000004584 polyacrylic acid Substances 0.000 description 1
- 229920000515 polycarbonate Polymers 0.000 description 1
- 239000004417 polycarbonate Substances 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 239000002861 polymer material Substances 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 229920002223 polystyrene Polymers 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 229920002451 polyvinyl alcohol Polymers 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 238000007142 ring opening reaction Methods 0.000 description 1
- 239000005060 rubber Substances 0.000 description 1
- NNMHYFLPFNGQFZ-UHFFFAOYSA-M sodium polyacrylate Chemical compound [Na+].[O-]C(=O)C=C NNMHYFLPFNGQFZ-UHFFFAOYSA-M 0.000 description 1
- 229920003048 styrene butadiene rubber Polymers 0.000 description 1
- 230000002195 synergetic effect Effects 0.000 description 1
- 239000005061 synthetic rubber Substances 0.000 description 1
- 150000003512 tertiary amines Chemical class 0.000 description 1
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 1
- 229920002554 vinyl polymer Polymers 0.000 description 1
Landscapes
- Medicinal Preparation (AREA)
Description
【考案の詳細な説明】 本考案は水性膏体用の新規な基材に関する。[Detailed explanation of the idea] The present invention relates to a novel base material for aqueous plasters.
捻挫、打身などの治瘉には、湿布剤を布等の基
材に塗布しこれを患部にあてがうことにより、消
炎鎮痛剤を経皮吸収させると同時に湿布剤中の水
分の蒸発潜熱として患部の熱の放散を促進する方
法が多くとられる。この湿布剤としては、カオリ
ン、ベントナイトの吸熱剤、炭酸カルシウム、炭
酸マグネシウムの吸湿剤、天然ゴムラテツクス及
び酢酸ビニル樹脂、ポリアクリル酸エステル樹脂
の合成樹脂エマルジヨン等の粘着剤、ゼラチン、
ポリアクリル酸ソーダ、ポリビニルアルコール等
の親和性化合物、消炎鎮痛性薬剤及び水などが適
宜比率で配合された水性膏体が最も一般的であ
る。この水性膏体は上記の如く布等の基材に塗布
して用いられるもので、基材としては水性膏体に
対し親和性があり、且つ通気性及び透湿性を有す
ることが条件とされ、斯かる観点から綿布、ネル
地等の織布やスパンボンド等の不織布が主に採用
される。然し乍ら、織布、不織布自体はほとんど
伸縮性を有しない為、生体の動きに追従し難く、
水性膏体中の粘着剤を種々工夫しても皮膚面の伸
縮運動ですぐに剥落することが多々ある。従つ
て、基材の剥落を防止する為、上から絆創膏のよ
うな結着テープで押さえたり、包帯などを巻き付
けると云つた処置が講じられるのが一般的で、斯
かる処置は使用者に違和感と貼るときの煩雑さを
与える原因となつていた。亦、基材と水性膏体と
の一体的な結合関係は、織、不織布の親水性能に
基づき水性膏体が織、不織布繊維に絡むことで担
持されることによつて成り立つから、織、不織布
はこの絡みを許容し、且つ水性膏体の塗布層全体
を保持し得るに足る厚みを有することが必要とさ
れると共に、一方水性膏体もある程度厚く塗設す
ることが余儀なくされる。従つて、それだけ全体
厚みが大となる為、貼つた時のゴワゴワとした違
和感は到底回避されるものではなかつた。 To treat sprains, bruises, etc., apply a poultice to a base material such as cloth and apply it to the affected area. At the same time, the anti-inflammatory analgesic is absorbed transdermally, and the latent heat of evaporation of the water in the poultice is transferred to the affected area. Many methods are used to promote heat dissipation. The poultices include heat absorbing agents such as kaolin and bentonite, moisture absorbing agents such as calcium carbonate and magnesium carbonate, adhesives such as natural rubber latex and synthetic resin emulsion such as vinyl acetate resin and polyacrylate resin, gelatin,
The most common is an aqueous paste containing an affinity compound such as sodium polyacrylate, polyvinyl alcohol, an anti-inflammatory and analgesic drug, and water in appropriate proportions. This aqueous paste is used by applying it to a base material such as cloth as mentioned above, and the base material must have an affinity for the aqueous paste and have air permeability and moisture permeability. From this point of view, woven fabrics such as cotton fabrics and flannel fabrics, and nonwoven fabrics such as spunbond fabrics are mainly used. However, woven and non-woven fabrics themselves have almost no elasticity, making it difficult for them to follow the movements of living organisms.
Even if various methods are used for the adhesive in the aqueous paste, it often peels off immediately due to the expansion and contraction movement of the skin surface. Therefore, in order to prevent the base material from peeling off, it is common to take measures such as applying adhesive tape such as a bandage to the top, or wrapping it with a bandage, etc., but such measures may make the user feel uncomfortable. This caused trouble when pasting. In addition, the integral bonding relationship between the base material and the aqueous paste is established when the aqueous paste is supported by entwining with the woven and non-woven fibers based on the hydrophilic properties of the woven and non-woven fabrics. It is necessary to have a thickness sufficient to allow this entanglement and to hold the entire coating layer of the water-based paste, and on the other hand, the water-based paste must also be applied to a certain degree of thickness. Therefore, since the overall thickness is increased accordingly, it is impossible to avoid a stiff and uncomfortable feeling when pasted.
本考案者等は斯かる実情に鑑み研究を重ねた結
果、特定された発泡倍率と厚みの１，２−ポリブ
タジエン発泡薄膜が生体との馴染性、肌ざわり、
風合い等において頗る良好であることを見出すに
至り、この知見をもとに本考案は、１，２−ポリ
ブタジエン発泡薄膜に強固に接着すると共に水性
膏体にも親和性を有する物質を結合層として多数
の微小透孔が穿設された上記薄膜の片面に被着さ
せることによつて、上記問題点を一掃し得る新規
な水性膏体用基材を提供せんとするものである。 The inventors of the present invention have conducted repeated research in light of these circumstances, and have found that a 1,2-polybutadiene foam thin film with a specified foaming ratio and thickness has good compatibility with living organisms, texture,
Based on this knowledge, the present invention has developed a material that firmly adheres to the 1,2-polybutadiene foam thin film and has an affinity for aqueous plasters as a bonding layer. It is an object of the present invention to provide a novel base material for an aqueous plaster that can eliminate the above-mentioned problems by applying it to one side of the above-mentioned thin film having a large number of microscopic holes.
本考案の実施例を添付図面に基づき説明する
と、第１図は本考案の代表例を示す縦断面図で、
第２図はその応用例を示す縦断面図である。即
ち、本考案は発泡倍率1.5〜７倍、厚さ0.1〜0.7mm
で、その面域に多数の微小透孔１１…が穿設され
た１，２−ポリブタジエン発泡薄膜１の片面に、
該１，２−ポリブタジエン発泡薄膜１と強固に接
着し得ると共に水性膏体に対し親和性を有する物
質より成る結合層２を被着せしめて成ることを特
徴する水性膏体用基材である。１，２−ポリブタ
ジエンの発泡体はその独特の柔軟性と風合いの故
に各種クツシヨン材その他の用途に広く用いられ
るようになつたが、本考案者等は多くの試行錯誤
を繰り返した結果、発泡倍率1.5〜７倍、厚み0.1
〜0.7mmの１，２−ポリブタジエン発泡薄膜は人
体の皮膚面に貼付すると、その柔軟性及び伸縮性
により生体運動に頗る良好にフイツトし、且つ一
種独特の肌ざわりと風合いを呈することを見出し
た。即ち、発泡倍率が1.5〜７倍の場合、１，２
−ポリブタジエン樹脂独特の柔軟性と気泡による
弾性とが相乗して生体運動に極めて良好に適合す
る伸縮性と好適な感触を呈し、厚みが0.1〜0.7mm
の範囲にあつては布地のようなドレープ性が良好
に維持されると共に上記特性が更に顕著となるの
である。ところが発泡倍率1.5倍未満の場合、見
掛上のモジユラスが大きく弾性が減退する為ソフ
トな感触が少なくなる傾向となり、非発泡のフイ
ルムに近いものとなる。一方、７倍を超えると気
泡の占める比率が大きくモジユラスは低くなる
が、引き裂き、引張り、表面の耐スクラツチ性な
どの物理的性質が低下し衣服との摩擦で表面が擦
り切れ易くなる。また“腰”がなくなり、上記基
材とした場合生体運動とのフイツト性に乏しくな
つて生体より剥落し易い傾向となる。更に発泡倍
率を上記の好ましい範囲に設定しても、厚みが
0.1mm未満の場合は、その発泡体としての弾力
性・柔軟性が相殺されてフイルムに近いものとな
ると共に製造過程で、その厚み内に有効な発泡を
生起させることが困難となり、逆に0.7mmを超え
るとドレープ性に乏しくなり、且つ生体運動との
適合性が悪くなる傾向となる。この軟質の１，２
−ポリブタジエン発泡体の望ましいものとして
は、１，２−結合が約70％以上、分子量が10万以
上、結晶化度が10〜50％で20％以上のシンジオタ
クチツク立体規則性を備えた１，２−ポリブタジ
エン〔例えば、日本合成ゴム(株)製の商品名
JSRRB−810〕が採用される。元来、合成樹脂発
泡体としてはウレタン樹脂発泡体、軟質ポリ塩化
ビニル樹脂発泡体、合成ゴム発泡体等数多く知ら
れているが、これらの発泡体に於てはいずれも上
記の如く薄膜で、且つ比較的高倍率の発泡体にす
ることは製造上極めて困難であり、１，２−ポリ
ブタジエンにあつて、それが可能な所以は、１，
２−ポリブタジエン独特の熱可塑性エラストマー
としての性質にあると考えられる。従つて、上記
の如く特定された発泡倍率及び厚み範囲とこの熱
可塑性エラストマーとしての性質との相乗効果に
よつて得られる特性は他のこの種の素材では達成
されない独特のものであると云える。この１，２
−ポリブタジエン発泡体薄膜（倍率５倍）につい
て、伸びに対する応力値を示すと、たとえば0.4
Kg／cm2（５％伸び）、0.8Kg／cm2（10％伸び）、２
Kg／cm2（25％伸び）と極めて小さい。通常生体の
貼付部位における皮膚面の伸びは25％程度とされ
ており、この際に望まれる水性膏体用基材の物性
としては、この伸びを生じさせる場合の応力値が
極力低い値となることが生体に対し違和感がなく
良く馴染むことになる。この事からも水性膏体用
基材として１，２−ポリブタジエン発泡薄膜の適
合性が非常に良好であることが理解できる。 An embodiment of the present invention will be explained based on the accompanying drawings. Fig. 1 is a longitudinal sectional view showing a representative example of the present invention.
FIG. 2 is a longitudinal sectional view showing an example of its application. That is, the present invention has a foaming ratio of 1.5 to 7 times and a thickness of 0.1 to 0.7 mm.
Then, on one side of the 1,2-polybutadiene foam thin film 1, which has a large number of microscopic holes 11... in its surface area,
This base material for an aqueous plaster is characterized by being coated with a bonding layer 2 made of a substance that can firmly adhere to the 1,2-polybutadiene foam thin film 1 and has an affinity for the aqueous plaster. Due to its unique flexibility and texture, 1,2-polybutadiene foam has come to be widely used in various cushioning materials and other applications, but after much trial and error, the inventors of the present invention found that the foaming ratio 1.5 to 7 times, thickness 0.1
It has been found that when a 1,2-polybutadiene foam thin film of ~0.7 mm is applied to the skin surface of the human body, its flexibility and elasticity allow it to fit the body's movements very well, and it also exhibits a unique texture and texture. That is, when the foaming ratio is 1.5 to 7 times, 1,2
- The unique flexibility of polybutadiene resin and the elasticity of the bubbles combine to provide elasticity and a suitable feel that are extremely compatible with biological movements, and the thickness is 0.1 to 0.7 mm.
Within this range, the drapability of cloth is maintained well and the above characteristics become even more remarkable. However, when the foaming ratio is less than 1.5 times, the apparent modulus is large and the elasticity is reduced, so the soft feel tends to decrease and it becomes similar to a non-foamed film. On the other hand, if it exceeds 7 times, the ratio of air bubbles increases and the modulus decreases, but physical properties such as tear, tensile, and surface scratch resistance decrease, and the surface becomes more likely to wear out due to friction with clothing. In addition, it loses its ``elasticity'' and when used as the above-mentioned base material, it has a poor fit with the movement of a living body and tends to peel off more easily than the living body. Furthermore, even if the foaming ratio is set within the above-mentioned preferred range, the thickness remains
If the thickness is less than 0.1 mm, the elasticity and flexibility of the foam will be canceled out and it will become similar to a film, and it will be difficult to generate effective foam within that thickness during the manufacturing process. If it exceeds mm, drapability tends to be poor and compatibility with biological movement tends to deteriorate. This soft 1,2
- Desirable polybutadiene foams include 1,2-bonds of about 70% or more, a molecular weight of 100,000 or more, a crystallinity of 10 to 50%, and a syndiotactic stereoregularity of 20% or more. , 2-polybutadiene [e.g., trade name manufactured by Japan Synthetic Rubber Co., Ltd.
JSRRB-810] was adopted. Originally, there are many known synthetic resin foams such as urethane resin foam, flexible polyvinyl chloride resin foam, and synthetic rubber foam, but all of these foams are thin films as described above. In addition, it is extremely difficult to produce a foam with a relatively high expansion ratio, and the reason why this is possible with 1,2-polybutadiene is because of the 1,2-polybutadiene foam.
This is thought to be due to the unique properties of 2-polybutadiene as a thermoplastic elastomer. Therefore, it can be said that the properties obtained through the synergistic effect of the expansion ratio and thickness range specified above and the properties of this thermoplastic elastomer are unique and cannot be achieved with other materials of this type. . This 1,2
- For polybutadiene foam thin film (5x magnification), the stress value for elongation is, for example, 0.4
Kg/cm 2 (5% elongation), 0.8Kg/cm 2 (10% elongation), 2
Kg/cm 2 (25% elongation), which is extremely small. Normally, the elongation of the skin surface at the application site of a living body is said to be about 25%, and the desired physical properties of the base material for the aqueous plaster are such that the stress value that causes this elongation is as low as possible. This means that it does not feel strange to the living body and blends well with it. From this fact, it can be understood that the 1,2-polybutadiene foam thin film has very good suitability as a base material for aqueous plasters.
ところで水性膏体用の基材としては、前述の如
く通気性及び透湿性を有することと、水性膏体に
対し親和性を有することが条件とされるが、１，
２−ポリブタジエン発泡薄膜自体は、これらの条
件をいずれも充足しない。そこで第１図に示す如
く、１，２−ポリブタジエン発泡薄膜１の全面域
には、径が0.05〜0.2mmの微小透孔１１…がニー
ドルパンチ方式により１平方インチ当り2000〜
5000個の高密度で穿設されて居り、この多数の微
小透孔１１…により、前記織、不織布と略同等の
通気性及び透湿性が保証される。また、この微小
透孔１１…は下記に塗設される水性膏体の滲出を
防ぐ程度に充分微小なものである。亦、該薄膜１
の片面には該薄膜１に強固に接着し水性膏体に対
し、親和性を有する結合層２が被着されている。
この結合層２を構成する物質は、例えばポリアク
リル酸エステルにビニルヒロリドンをグラフト重
合させた樹脂（以下、グラフト重合体と称す）、
水溶性乃至保水性ウレタン樹脂、末端のエポキシ
基材を有するポリウレタンを第３級アミンで開環
した反応性ウレタン樹脂等の吸水性乃至親水性樹
脂であり、これらの各樹脂は１，２−ポリブタジ
エンに対し強固に密着すると共に、親水性、保水
性を有するものであり、該結合層２の表面に水性
膏体を塗布すると、水性膏体は含まれる水分が結
合層２と親和し結合層２の表面に安定的に保持さ
れることになる。この結合層２は上記物質を溶液
状にてフローコーター法等により薄膜１の片面に
乾燥膜厚が0.005〜0.2mmとなるよう塗布されて形
成されるが、該結合層２の吸水能力は100重量部
に対し吸水量10〜50重量部が適当とされる。即
ち、50重量部を超えると水性膏体の保持力が低下
する傾向となり、一方10重量部未満の場合、水性
膏体の初期付着力が低下する傾向となる。この吸
水能力は、例えば上記グラフト重合体の場合、親
水性ポリマーのグラフト率を適宜変えることによ
つて調整される。尚、この結合層２は１，２−ポ
リブタジエン発泡薄膜１との密着性を高めるため
に発泡薄膜１と結合層２との間にアクリル樹脂、
ネオプレン等のプライマーを用いても良い。 By the way, as mentioned above, the base material for the aqueous plaster must have air permeability and moisture permeability, and have an affinity for the aqueous plaster.
The 2-polybutadiene foam film itself does not satisfy either of these conditions. Therefore, as shown in Fig. 1, micro holes 11 with a diameter of 0.05 to 0.2 mm are formed over the entire surface of the 1,2-polybutadiene foam thin film 1 by needle punching at a density of 2,000 to 2,000 per square inch.
5,000 microscopic holes 11 are formed at a high density, and this large number of microscopic holes 11 guarantees air permeability and moisture permeability that are almost equivalent to those of the woven and nonwoven fabrics. Further, the microscopic holes 11 are sufficiently small to prevent the aqueous paste applied below from seeping out. In addition, the thin film 1
A bonding layer 2 that firmly adheres to the thin film 1 and has an affinity for the aqueous paste is adhered to one side of the .
The material constituting the bonding layer 2 is, for example, a resin obtained by graft-polymerizing vinyl hydrolidone onto polyacrylic acid ester (hereinafter referred to as a graft polymer),
These are water-absorbing or hydrophilic resins such as water-soluble or water-retaining urethane resins and reactive urethane resins made by ring-opening polyurethane with an epoxy base material at the end with tertiary amines. It has strong adhesion to the bonding layer 2 and has hydrophilic and water-retaining properties.When the aqueous plaster is applied to the surface of the bonding layer 2, the water contained in the aqueous plaster becomes compatible with the bonding layer 2. It will be stably held on the surface. This bonding layer 2 is formed by applying the above-mentioned substance in solution form to one side of the thin film 1 using a flow coater method or the like so that the dry film thickness is 0.005 to 0.2 mm, but the water absorption capacity of the bonding layer 2 is 100 mm. A water absorption amount of 10 to 50 parts by weight is considered appropriate. That is, if it exceeds 50 parts by weight, the holding power of the aqueous paste tends to decrease, while if it exceeds 10 parts by weight, the initial adhesive strength of the aqueous paste tends to decrease. For example, in the case of the above-mentioned graft polymer, this water absorption ability is adjusted by appropriately changing the grafting ratio of the hydrophilic polymer. Note that this bonding layer 2 has an acrylic resin between the foamed thin film 1 and the bonding layer 2 in order to improve the adhesion with the 1,2-polybutadiene foamed thin film 1.
A primer such as neoprene may also be used.
上記構成の基材を水性膏体用基材として用いる
には、前記水性膏体を結合層２の表面に厚さ0.5
〜2.0mmとなるよう塗布し、この水性膏体塗布面
を皮膚面にあてがい貼着する。貼着状態では基材
の本体である１，２−ポリブタジエン薄膜１が上
述の如く極めて優れた伸縮性・ドレープ性等を有
しているから、貼着面の生体運動に好適に追従す
る。しかも該薄膜１と水性膏体とは結合層２によ
つて強固に一体とされるから、水性膏体にプラス
ター剤の如く皮膚面に対する強い接着力を付与し
ても、生体運動により薄膜１が剥落することがな
い。従つて従来の如く、粘着テープや包帯等で上
から押さえるような処置を講じる必要がない。
亦、結合層２は親水性・保水性を有するから水性
膏体中の水分の滲出を防止し、患部の冷却時間を
持続して湿布効果を高め、一方生体の熱を吸収し
て蒸気化した湿分は薄膜１に穿設された多数の透
孔１１…より遂次放散され、その穿孔の度合によ
つて湿気の放散の程度をコントロールできるか
ら、従来の織、不織布を用いたこの種湿布剤同様
あるいはそれ以上の機能を奏するのである。更
に、１，２−ポリブタジエン薄膜１の厚みは、上
述の特定された数値が示す通り極めて薄く、亦該
薄膜１に強固に接着された結合層２は水性膏体を
保持する実体ではあるが、織、不織布の如く物理
的に含浸担持するものではなく水分を化学的に吸
着・保水することによつてこれを担持するもので
あるから、結合層２の厚みは極めて小さく且つ水
性膏体の塗布量を湿布効果を減退させない程度に
少なくすることが出来、従つて全体厚みは従来の
織、不織布による湿布剤に比べて薄肉化すること
が出来、これにより貼着等のゴワゴワとした違和
感は減少し、かつてない好適な湿布剤となる。 In order to use the base material with the above structure as a base material for an aqueous paste, the aqueous paste is coated on the surface of the bonding layer 2 to a thickness of 0.5 cm.
Apply it to a thickness of ~2.0 mm, and apply the water-based plaster to the skin surface and stick it. In the adhered state, the 1,2-polybutadiene thin film 1, which is the main body of the base material, has extremely excellent stretchability and drapability as described above, so that it suitably follows the biological movement of the adhered surface. Moreover, since the thin film 1 and the aqueous plaster are firmly integrated by the bonding layer 2, even if the aqueous plaster is given a strong adhesive force to the skin surface like a plaster, the thin film 1 will be bonded due to biological movement. Will not peel off. Therefore, there is no need to take measures such as pressing from above with adhesive tape, bandages, etc. as in the past.
In addition, since the bonding layer 2 has hydrophilic and water-retaining properties, it prevents the water in the aqueous paste from seeping out, prolongs the cooling time of the affected area, and enhances the compress effect, while absorbing body heat and turning it into vapor. Moisture is sequentially radiated through a large number of perforations 11 made in the thin film 1, and the degree of moisture dissipation can be controlled depending on the degree of perforation, so this kind of compress using conventional woven or non-woven fabrics It functions as well as, or even better than, drugs. Furthermore, the thickness of the 1,2-polybutadiene thin film 1 is extremely thin as indicated by the above specified numerical values, and although the bonding layer 2 firmly adhered to the thin film 1 is an entity that retains the aqueous paste, The bonding layer 2 is not physically impregnated and supported like woven or non-woven fabrics, but is supported by chemically adsorbing and retaining water, so the thickness of the bonding layer 2 is extremely small and it does not require the application of an aqueous paste. The amount can be reduced to the extent that the poultice effect is not diminished, and the overall thickness can therefore be made thinner compared to conventional poultices made of woven or non-woven fabrics, thereby reducing the stiff and uncomfortable feeling caused by sticking. This makes it the most suitable poultice ever.
第２図は本考案基材の応用例を示すもので、薄
膜１の結合層２とは反対面に滑性を有する被覆面
３を定着せしめたものである。この被覆面３はエ
ステル結合を有しないゴム質の高分子物質に、有
機系もしくは無機系の滑剤の一方、あるいは両方
が添加された高分子被膜によつて形成されたもの
で、エステル結合を有しない高分子物質として
は、例えば、スチレン・ブタジエンゴム
（SBR）、スチレン・イソプレン・スチレンゴム
（SIS）等が好ましく採用され、斯る高分子物質
は低モジユラスで伸縮性に富み、１，２−ポリブ
タジエン発泡薄膜１と協働的に伸縮するべく機能
すると共に、被覆面３を該薄膜１に強固に密着さ
せる実体でもある。一方、この高分子物質に添加
される上記滑剤は、水性膏体中の粘着剤の滲出を
一層確実に防止すると共に衣類と相互の滑性を維
持するべく機能するもので、高分子量ポリエチレ
ン、塩素化ポリエチレン、塩素化ポリプロピレ
ン、ポリカーボネート、ポリスチレン、ポリ塩化
ビニル、フツ素化ポリエチレン、フツ化ビニリデ
ン等のエステル結合を有しない有機系滑剤や、シ
リカ或いは表面処理したシリカ、フツ化黒鉛等の
無機系滑剤等が好ましく採用される。この被覆面
３の存在により、水性膏体中の成分の滲出に起因
する衣服の汚れや、衣服と基材とのつつかかりが
確実に防止され、使用時の不快感が実に軽減され
るのであり、上記同様好ましく採用されるもので
ある。 FIG. 2 shows an application example of the base material of the present invention, in which a coating surface 3 having slipperiness is fixed on the surface of the thin film 1 opposite to the bonding layer 2. This coated surface 3 is formed of a polymer coating made of a rubbery polymer material that does not have ester bonds and one or both of organic and inorganic lubricants are added, and has ester bonds. For example, styrene-butadiene rubber (SBR), styrene-isoprene-styrene rubber (SIS), etc. are preferably used as polymeric substances that do not bind to 1,2- It functions to expand and contract in cooperation with the polybutadiene foam thin film 1, and is also an entity that firmly adheres the covering surface 3 to the thin film 1. On the other hand, the above-mentioned lubricant added to this polymer substance functions to more reliably prevent the adhesive in the aqueous paste from exuding and maintain mutual lubricity with clothing. Organic lubricants without ester bonds such as chlorinated polyethylene, chlorinated polypropylene, polycarbonate, polystyrene, polyvinyl chloride, fluorinated polyethylene, and vinylidene fluoride, and inorganic lubricants such as silica or surface-treated silica and graphite fluoride. etc. are preferably adopted. The presence of this coated surface 3 reliably prevents stains on clothes caused by leaching of ingredients in the aqueous paste and the poking of clothes and the base material, and greatly reduces discomfort during use. , is preferably adopted as above.
叙述の如く、本考案の水性膏体用基材は発泡倍
率及び厚みが、上記の如く特定された１，２−ポ
リブタジエン発泡薄膜をその基体とすることによ
つて、その独特の伸縮性・ドレープ性等をして生
体運動に極めて好適にフイツトし得るまさにうつ
てつけのものとして位置付けられる上に、多数の
微小透孔により織、不織布と同様の透湿性・通気
性が保証され、結合層によつて水性膏体が安定的
に保持され得ると共に、全体厚みがかつてなく薄
く貼着時の不快感が極めて少なく、これら数多く
の利点を有する水性膏体用基材は需要者の要望に
応え得るものである。 As described above, the base material for the aqueous plaster of the present invention has the unique elasticity and drape by using the 1,2-polybutadiene foam thin film with the foaming ratio and thickness specified as above as the base material. In addition, it is positioned as a perfect material that can fit very well to biological movements due to its characteristics, etc., and the large number of microscopic pores guarantees moisture permeability and air permeability similar to woven and non-woven fabrics. As a result, the aqueous paste can be stably held, the overall thickness is thinner than ever, and there is extremely little discomfort when applied, and the base material for the aqueous paste has these numerous advantages and can meet the demands of consumers. It is something.
第１図は本考案の代表例を示す縦断面図で、第
２図はその応用例を示す縦断面図である。
符号の説明、１……１，２−ポリブタジエン発
泡薄膜、２……結合層、１１……微小透孔。
FIG. 1 is a vertical sectional view showing a typical example of the present invention, and FIG. 2 is a vertical sectional view showing an example of its application. Explanation of symbols: 1... 1,2-polybutadiene foam thin film, 2... Bonding layer, 11... Microscopic pores.
Claims (1)
域に多数の微小透孔が穿設された１，２−ポリブ
タジエン発泡薄膜の片面に、該１，２−ポリブタ
ジエン発泡薄膜と強固に接着し得ると共に水性膏
体に対し親和性を有する物質より成る結合層を被
着せしめて成ることを特徴する水性膏体用基材。 A 1,2-polybutadiene foam thin film with a foaming ratio of 1.5 to 7 times, a length of 0.1 to 0.7 mm, and a large number of microscopic holes perforated in its surface area is placed on one side of the 1,2-polybutadiene foam thin film and firmly bonded with the 1,2-polybutadiene foam thin film. 1. A base material for an aqueous paste, comprising a bonding layer made of a substance that can adhere to the aqueous paste and has an affinity for the aqueous paste.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3215084U JPS60143738U (en) | 1984-03-05 | 1984-03-05 | Base material for aqueous plaster |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3215084U JPS60143738U (en) | 1984-03-05 | 1984-03-05 | Base material for aqueous plaster |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS60143738U JPS60143738U (en) | 1985-09-24 |
| JPH031450Y2 true JPH031450Y2 (en) | 1991-01-17 |
Family
ID=30533396
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3215084U Granted JPS60143738U (en) | 1984-03-05 | 1984-03-05 | Base material for aqueous plaster |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60143738U (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5043396B2 (en) * | 2006-10-13 | 2012-10-10 | 日本電子精機株式会社 | Patch |
-
1984
- 1984-03-05 JP JP3215084U patent/JPS60143738U/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS60143738U (en) | 1985-09-24 |
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