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 (JP)
TANAKA KOJI (JP)
TANAKA KOJI (JP)
Application Number:
PCT/JP2010/061937
Publication Date:
January 27, 2011
Filing Date:
July 15, 2010
Export Citation:
Assignee:
JAPAN EXLAN CO LTD (JP)
YAMAUCHI TAKAO (JP)
TANAKA KOJI (JP)
YAMAUCHI TAKAO (JP)
TANAKA KOJI (JP)
International Classes:
D06M11/63; D01F6/18; D06M11/00; D06M101/28
Domestic Patent References:
| WO2009057235A1 | 2009-05-07 |
Foreign References:
| JPS4920251B1 | 1974-05-23 | |||
| JP2003278079A | 2003-10-02 | |||
| JP2006070421A | 2006-03-16 | |||
| JP2008174849A | 2008-07-31 | |||
| JP2000045126A | 2000-02-15 |
Other References:
See also references of EP 2458082A4
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