Title:
COMPOSITE FIBER AND PROCESS FOR PRODUCING THE SAME
Document Type and Number:
WIPO Patent Application WO/2003/100145
Kind Code:
A1
Abstract:
A polytrimethylene terephthalate composite fiber characterized in that it is composed of a group of single yarns united into a side-by-side structure or eccentric core-sheath structure and is made of two polyester ingredients, that at least one of the ingredients constituting the single yarns is polytrimethylene terephthalate, and that (1) the fiber is crimpy before treatment with boiling water and, the crimped fiber has a degree of stretching elongation of 20% or less, (2) the elongation at break is 25 to 100%, and (3) the extreme value of dry heat shrinkage stress is 0.01 to 0.24 cN/dtex.
Inventors:
KOYANAGI TADASHI
YAMASHITA AKIRA
YAMASHITA AKIRA
Application Number:
PCT/JP2003/005666
Publication Date:
December 04, 2003
Filing Date:
May 06, 2003
Export Citation:
Assignee:
ASAHI CHEMICAL IND (JP)
International Classes:
D01F8/14; D02J1/22; (IPC1-7): D01F8/14
Domestic Patent References:
| WO2001053573A1 | 2001-07-26 |
Foreign References:
| JP2002061030A | 2002-02-28 | |||
| EP1059372A2 | 2000-12-13 | |||
| JP2001040537A | 2001-02-13 | |||
| JPH11189923A | 1999-07-13 | |||
| JP2001064828A | 2001-03-13 | |||
| JP2001355131A | 2001-12-26 |
Other References:
See also references of EP 1512778A4
Attorney, Agent or Firm:
Aoki, Atsushi (ISHIDA & ASSOCIATES Toranomon 37 Mori
Bldg., 5-1, Toranomon 3-chom, Minato-ku Tokyo, JP)
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