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Pressure-sensitive adhesive tape or sheet for application to skin, and process for producing the same

A pressure-sensitive adhesive, pressure-sensitive adhesive technology, applied in the direction of pressure-sensitive film/sheet, film/sheet-shaped adhesive, chemical instruments and methods, etc.

Inactive Publication Date: 2010-05-26
NITTO DENKO CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, at present, there has not yet been obtained a pressure-sensitive adhesive tape having good mechanical strength and elastic memory properties sufficient to be applied to parts that move vigorously, such as legs and knees, and having sufficient ability to be fixed to the part to be applied (see JP -A-2004-49541)

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0066] As the stretch fabric, a stretch smooth knitted fabric of polyester 75 denier yarn having a thickness of 450 μm and a stretch rate of 75% in the transverse direction and 50% in the longitudinal direction was prepared. The physical data of the cloth measured according to JIS-L1096 are as follows: 20% modulus, 1.2N / 19mm width; elongation 115%; tensile strength 93N / 19mm width; elastic memory level 82%.

[0067] This was immersed in an emulsion of an acrylic water repellant containing perfluoroalkyl (meth)acrylate as its main component (manufactured by Asahi Glass Co. Ltd., trade name Asahi Guard AG-8025) , then wrung with pinch rolls and dried for water-repellent treatment.

[0068] On the other hand, as a pressure-sensitive adhesive layer, a monomer mixture containing 65 parts of isononyl acrylate, 30 parts of 2-methoxyethyl acrylate and 5 parts of acrylic acid was uniformly dissolved and mixed in 80 parts of toluene , and 0.3 parts of polymerization initiator azobisisob...

Embodiment 2

[0072] Polyurethane elastic yarn (11%, trade name Lycra, manufactured by DuPont-Toray Co., Ltd., 75 denier) and polyester 75 denier processed yarn were woven into polyester spun-bonded nonwoven fabric (trade name Ecule6201A, Toyo Textile company, unit weight 20g / m 2 ), the elastic knitted fabric with stretch rate controlled at 190% in transverse direction and 90% in longitudinal direction was prepared. The physical data of the cloth are as follows: 20% modulus, 1.1N / 19mm width; elongation 108%; tensile strength 91N / 19mm width; elastic memory level 86%.

[0073] In the same manner as in Example 1, the stretch cloth was subjected to water-repellent treatment. Using this, in the same manner as in Example 1, a pressure-sensitive adhesive tape for application to skin of the present invention was prepared.

Embodiment 3

[0075] A pressure-sensitive adhesive tape for application to skin of the present invention was prepared in the same manner as in Example 1, however, in which the stretch cloth was not subjected to water-repellent treatment.

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Abstract

The present invention provides a pressure-sensitive adhesive tape or sheet for application to skin, which contains: a stretch fabric, and a pressure-sensitive adhesive layer provided on one surface of the stretch fabric, in which the pressure-sensitive adhesive layer contains: an acrylic copolymer obtained from a monomer mixture including an alkyl (meth)acrylate of from 40 to 80% by weight, an alkoxy (meth)acrylate of from 10 to 50% by weight and a (meth)acrylic acid of from 1 to 10% by weight; a long-chain fatty acid glycerin ester in an amount of from 20 to 100 parts by weight relative to 100 parts by weight of the acrylic copolymer, and a cross linking agent, the pressure-sensitive adhesive layer being crosslinked with the crosslinking agent; and also provides a process for producing the tape or sheet.

Description

technical field [0001] The present invention relates to a pressure-sensitive adhesive tape or sheet for application to skin, which is used in various fields such as medicine and sports. Background technique [0002] Hitherto, in the fields of medicine and sports, pressure-sensitive adhesive tapes or sheets for application to the skin (hereinafter may also be referred to as "pressure-sensitive adhesive tapes") are used for various applications such as emergency adhesive tapes, plasters, etc. , taping adhesive tapes, etc.; recently, various pressure-sensitive adhesive tapes made into different forms according to their uses have been manufactured and sold. [0003] Herein, sticking refers to fixing a part to be treated such as a joint part or a muscle with a pressure-sensitive adhesive tape. It effectively relieves pain, promotes healing of a diseased part, etc., by supporting, reinforcing or compressing the part with an adhesive tape. Compared with other treatment methods su...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61L15/58A61L15/16A61F13/02A63B71/08B32B27/30B32B5/04C09J7/21C09J7/38
CPCA61L15/585C09J7/045C09J2433/00C09J7/38C09J7/21C08L33/10A61F13/02A61F13/0253A61F13/0273
Inventor 高桥尚则镰田浩二大平治吉川利之
Owner NITTO DENKO CORP
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