CORE-IN-SHEATH-TYPE COMPOSITE FIBER INTENDED TO BE SHRUNK AND FIBRILLATED, AND WOVEN OR KNITTED FABRIC CONTAINING SAME

WIPO Patent Application WO/2019/013004

A1

Provided is a core-in-sheath-type composite fiber intended to be shrunk and fibrillated, which has excellent dyeability and texture. Provided is a core-in-sheath-type composite fiber intended to be shrunk and fibrillated, in which a cation-dyeable copolyester is used as a sheath component and polyamide is used as a core component, the composite fiber being characterized in that the intensity ratio of a Raman band at around 1615 cm-1 is 5.0 to 7.0 when the polyester component is measured in both of a polarization direction parallel with the fiber axis direction and a polarization direction orthogonal to the fiber axis direction, and the amount of an amino terminal group of the polyamide component is 2.4 × 10-5 to 3.0 × 10-5 mol/g.

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JP2003528223	INDUSTRIAL APPLICABILITY Bristles with an antibacterial finish, brush products with such bristles and packs for such bristles or brush products.
JP2020050970	POLYESTER-BASED LONG FIBER NONWOVEN FABRIC

MIZOTA JUNICHI (JP)
SAWAI YUMIKO (JP)

PCT/JP2018/024568

January 17, 2019

June 28, 2018

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TORAY INDUSTRIES (JP)

D01F8/14; D03D15/00

WO2013047051A1

2013-04-04

JP2014148773A	2014-08-21
JP2000110029A	2000-04-18
JPH07126922A	1995-05-16
JP2001115337A	2001-04-24

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