Title:
CRIMPED FIBERS
Document Type and Number:
WIPO Patent Application WO/2023/153459
Kind Code:
A1
Abstract:
The present invention relates to crimped fibers that are composite fibers formed from two kinds of polymers A and B and are characterized in that the crimped fibers have a coil-shaped crimped form in the fiber axis direction, the ratio Dc/df between the coil diameter Dc and the single fiber diameter df is 2.0-20.0, the coil pitch number is 1.0-10.0 per 1 mm, the polymer A is fully covered with the polymer B in the fiber cross section, and the moisture absorbing and releasing parameter ΔMR is 2.0% or more.
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Inventors:
SATO KIRITA (JP)
NAGAO MASASHI (JP)
MASUDA MASATO (JP)
WATANABE YUDAI (JP)
KISHIDA TAISUKE (JP)
NAGAO MASASHI (JP)
MASUDA MASATO (JP)
WATANABE YUDAI (JP)
KISHIDA TAISUKE (JP)
Application Number:
PCT/JP2023/004259
Publication Date:
August 17, 2023
Filing Date:
February 08, 2023
Export Citation:
Assignee:
TORAY INDUSTRIES (JP)
International Classes:
D01F8/04; D01F8/12; D01F8/14
Domestic Patent References:
| WO2009028564A1 | 2009-03-05 |
Foreign References:
| JP2019131941A | 2019-08-08 | |||
| JP2000239918A | 2000-09-05 | |||
| JP2003129352A | 2003-05-08 | |||
| JP2011162907A | 2011-08-25 | |||
| US20190360125A1 | 2019-11-28 |
Attorney, Agent or Firm:
EIKOH, P.C. (JP)
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