MOISTURE-ABSORBING FIBER DYEABLE WITH ACID DYES AND METHOD FOR PRODUCING SAME

Title:

MOISTURE-ABSORBING FIBER DYEABLE WITH ACID DYES AND METHOD FOR PRODUCING SAME

Document Type and Number:

WIPO Patent Application WO/2011/010590

Kind Code:

A1

Abstract:

Conventional crosslinked acrylic acid-based fibers are characterized by having conditioning functions such as pH-buffering ability, antistatic properties and water-retention ability, high moisture absorbency, high moisture-absorption speed, large difference in moisture absorbency or temperature-controlling and humidity-controlling functions due to the aforesaid characteristics, and so on. However, these conventional cross-linked acrylic acid-based fibers still suffer from problems of dyeability. Disclosed is a fiber which has the aforesaid characteristics and yet is dyeable with acid dyes in practice. Specifically disclosed is a moisture-absorbing fiber dyeable with acid dyes which is composed of a region of a polymer having a functional group acting as a dyeing site for an acid dye and a region of a polymer having a crosslinked structure and a carboxyl group, wherein the saturated dyeing capacity of the acid dye is 3.5-10 wt% relative to the fiber weight and the carboxyl group content is 1.0-10 mmol/g.

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Inventors:

YAMAUCHI, Takao (Japan Exlan Company Limited3-1, Kanaoka-Higashimachi 3-chome, Higashi-ku, Okayama-sh, Okayama 10, 〒7048510, JP)
山内孝郎 (〒10 岡山県岡山市東区金岡東町３丁目３番１号　日本エクスラン工業株式会社西大寺工場内 Okayama, 〒7048510, JP)

Application Number:

JP2010/061937

Publication Date:

January 27, 2011

Filing Date:

July 15, 2010

Export Citation:

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Assignee:

JAPAN EXLAN COMPANY LIMITED (2-8 Dojima Hama 2-chome, kita-ku Osaka-sh, Osaka 04, 〒5300004, JP)
日本エクスラン工業株式会社 (〒04 大阪府大阪市北区堂島浜２丁目２番８号 Osaka, 〒5300004, JP)
YAMAUCHI, Takao (Japan Exlan Company Limited3-1, Kanaoka-Higashimachi 3-chome, Higashi-ku, Okayama-sh, Okayama 10, 〒7048510, JP)