POLYESTER COMPOSITE FIBER PACKAGE

Title:

POLYESTER COMPOSITE FIBER PACKAGE

Document Type and Number:

WIPO Patent Application WO/2003/040011

Kind Code:

A1

Abstract:

A composite fiber of polytrimethylene terephthalate is composed of a single yarn in which two kinds of polyester components are bonded into a side−by−side type or an eccentric sheath−core type. At least one of the components constituting the single yarn contains 90mol% or more of repeating unit of trimethylene terephthalate. A lay of the composite fiber is wound in a package by the amount of 2 kg or more. The composite fiber is characterized in that (1) the difference between the winding diameter of the lay at the ear part of the package and that at the central part of the package is 10 mm or less, (2) the winding width of the package is 60 to 250 mm and the winding diameter of the package is 100 to 400 mm, and (3) the difference between the dry heat shrinkage stress of the composite fiber wound at the ear part of the package and that at the central part is 0.05 cN&sol dtex or less.

Inventors:

KOYANAGI TADASHI
ABE TAKAO

Application Number:

PCT/JP2002/011382

Publication Date:

May 15, 2003

Filing Date:

October 31, 2002

Export Citation:

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Assignee:

ASAHI CHEMICAL IND (JP)

International Classes:

B65H55/00; D01F8/14; (IPC1-7): B65H55/00; D01F8/14

Foreign References:

JP2001020136A	2001-01-23
JPH0625262U	1994-04-05
JPH05295629A	1993-11-09
JP2000128428A	2000-05-09
JP2001214372A	2001-08-07
JPH11269721A	1999-10-05
JPH05306069A	1993-11-19
JP2000335824A	2000-12-05
JP2000239927A	2000-09-05
JP2002339169A	2002-11-27
JP2001131837A	2001-05-15
JP2001288621A	2001-10-19
JP2001355131A	2001-12-26
JP2001055634A	2001-02-27

Other References: