POLY&lpar TRIMETHYLENE TEREPHTHALATE&rpar FILAMENT YARN AND METHOD FOR PRODUCTION THEREOF

Title:

POLY&lpar TRIMETHYLENE TEREPHTHALATE&rpar FILAMENT YARN AND METHOD FOR PRODUCTION THEREOF

Document Type and Number:

WIPO Patent Application WO/2003/038162

Kind Code:

A1

Abstract:

A poly(trimethylene terephthlate) filament yarn, which comprises 0.5 to 4.0 mass % of a fiber elongation improver particles being drawn and oriented in the longitudinal direction in the filament, having a heat distortion temperature of not lower than 40&ring C and lower than 105&ring C, having, in the cross section of the filament, an average particle diameter (D) of 0.03 to 0.35 μm, and exhibiting a ratio (L&sol D) of an average particle length (L) in the longitudinal direction of the filament to the above average particle diameter (D) of 2 to 20. The filament yarn exhibits an increase percentage for a residual elongation of 30 % or more, which results from the presence of the fiber elongation improver, a double refractive index (&Dgr n) of 0.02 to 0.07, a residual elongation of 60 to 250 % and a peak value of thermal stress of 0.18 cN&sol dtex or less, and thus can be produced by a high speed spinning and exhibits a high residual elongation and excellent draw twisting processability.

Inventors:

YOSHIMURA MIE (JP)
IOHARA KOICHI (JP)

Application Number:

PCT/JP2002/011316

Publication Date:

May 08, 2003

Filing Date:

October 30, 2002

Export Citation:

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Assignee:

TEIJIN LTD (JP)
YOSHIMURA MIE (JP)
IOHARA KOICHI (JP)

International Classes:

D01F6/62; D01F6/92; (IPC1-7): D01F6/92; D01F6/62; D02G3/04

Domestic Patent References:

WO1999027168A1	1999-06-03
WO2001066837A1	2001-09-13

Foreign References:

US6136435A	2000-10-24
US4609710A	1986-09-02

Other References: