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Patent Searching and Data


Title:
MULTIFILAMENT YARN, AND KNIT/WOVEN FABRIC AND PROCESS FOR PRODUCING SAME
Document Type and Number:
WIPO Patent Application WO/2016/002100
Kind Code:
A1
Abstract:
The present invention provides a multifilament yarn, knit/woven fabric, and a process for producing the knit/woven fabric, the multifilament yarn not only being capable of retaining the non-circular cross-sectional shape of the single fibers even under physical pressures in the steps of false-twisting, twisting, knitting/weaving, and dyeing but also giving fabric which has satisfactory appearance and other quality, is lightweight and highly bulky, and has excellent heat-insulating properties. This knit/woven fabric is produced by immersing knit/woven fabric configured using a crimped multifilament yarn composed of core-sheath-type composite single fibers, in an alkaline aqueous solution to dissolve away the cores, the cores comprising a polyester-based copolymer that readily dissolves away, the proportion of the composited cores being 30-70 mass% with respect to the sheaths, and the degree of non-circularity of the cross-section of the sheaths being 0.9-1.3.

Inventors:
NIWA UJITERU (JP)
DATE HIROAKI (JP)
JING HONGCHUAN (JP)
Application Number:
PCT/JP2014/081319
Publication Date:
January 07, 2016
Filing Date:
November 27, 2014
Export Citation:
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Assignee:
TORAY INDUSTRIES (JP)
International Classes:
D01F8/14; D01F8/04; D03D15/00
Foreign References:
JP2007131980A2007-05-31
JPS6452839A1989-02-28
JPH073554A1995-01-06
JPS5782525A1982-05-24
JP2000045174A2000-02-15
JP2009074216A2009-04-09
JPS5530401A1980-03-04
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