Title:
POLYAMIDE MODIFIED CROSS-SECTION FIBER AND FIBER FORMED FROM CORE-SHEATH COMPOSITE YARN
Document Type and Number:
WIPO Patent Application WO/2023/228878
Kind Code:
A1
Abstract:
Provided is woven fabric or knitted fabric demonstrating excellent water repellency, practical durability, and color fastness when modified cross-section polyamide multi filaments used for woven fabric or knitted fabric in clothing application are used as clothing materials. The polyamide modified cross-section fiber according to the present invention has multiple grooves on the outer periphery of the fiber cross-section of a single fiber and has a modified cross-sectional shape in which the curvature radius d of the inlet corner part of the grooves, the groove depth H, and the diameter D of the circumscribed circle of the fiber cross-section satisfy formula (1) and formula (2). The rigid amorphous amount of the polyamide modified cross-section fiber is 35%-55%. Formula (1): d/D ≤ 0.030 Formula (2): 0.10 ≤ (H/D) ≤ 0.30
Inventors:
WATANABE YUDAI (JP)
KISHIDA TAISUKE (JP)
KANEDA CHINAMI (JP)
KISHIDA TAISUKE (JP)
KANEDA CHINAMI (JP)
Application Number:
PCT/JP2023/018709
Publication Date:
November 30, 2023
Filing Date:
May 19, 2023
Export Citation:
Assignee:
TORAY INDUSTRIES (JP)
International Classes:
D01F6/60; D01F8/12; D01F8/14
Domestic Patent References:
| WO2018021011A1 | 2018-02-01 | |||
| WO2019208427A1 | 2019-10-31 |
Foreign References:
| JP2019026944A | 2019-02-21 | |||
| JP2020105682A | 2020-07-09 | |||
| JPH06235168A | 1994-08-23 | |||
| JPH0835145A | 1996-02-06 | |||
| JP2000199122A | 2000-07-18 | |||
| JP2007262610A | 2007-10-11 | |||
| JP2013224504A | 2013-10-31 | |||
| JPS61160441A | 1986-07-21 |
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