Title:
SEA-ISLAND COMPOSITE POLYESTER FIBER
Document Type and Number:
WIPO Patent Application WO/2022/107671
Kind Code:
A1
Abstract:
The present invention provides a sea-island composite polyester fiber that has at least two types of island regions having different orientations, and that yields a suede-like material that exhibits an excellent raised nap uniformity and an excellent raised nap thickness. A sea-island composite polyester fiber according to the present invention has a sea-island structure that has an island region and at least two different types of island regions. The outer diameter of the island regions is 1.0-7.0 µm; the ratio, for the island regions, of the orientation parameter for the maximally oriented component to the orientation parameter for the minimally oriented component (maximum orientation parameter/minimum orientation parameter) is 1.03-1.15; and the orientation parameter for the maximally oriented component is 4.0-8.5.
Inventors:
YOSHIOKA DAISUKE (JP)
SHIKI RYOSUKE (JP)
SHIKI RYOSUKE (JP)
Application Number:
PCT/JP2021/041432
Publication Date:
May 27, 2022
Filing Date:
November 10, 2021
Export Citation:
Assignee:
TORAY INDUSTRIES (JP)
International Classes:
D01F8/14
Foreign References:
| JPH1088473A | 1998-04-07 | |||
| JPS6414321A | 1989-01-18 | |||
| JP2011157647A | 2011-08-18 | |||
| JP2000328359A | 2000-11-28 | |||
| JP2015183343A | 2015-10-22 | |||
| JPH09279418A | 1997-10-28 | |||
| JPH0770827A | 1995-03-14 | |||
| JPS551354A | 1980-01-08 |
Attorney, Agent or Firm:
EIKOH PATENT FIRM, P.C. (JP)
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