ACRYLIC SHRINKABLE FIBER AND PILE CLOTH BY USING THE SAME

Japanese Patent JP2007291575

A

To provide an acrylic shrinkable fiber having a flat cross sectional shape and also having a high shrinking function even by stretch-treating under a condition of giving a high stretching magnitude and also giving a dyeing treatment, and a pile cloth obtained by using the fiber as the fiber constituting a short pile part.

This acrylic shrinkable fiber is a synthetic fiber containing an acrylic copolymer (A) and characterized by capable of being dyed at ≤80°C temperature, and having a function of shrinking by 10 to 40% range shrinking rate under the dry heat of 130°C even after the dyeing and 3 to 20 flatness RAexpressed by the following formula (1) of the fiber cross sectional surface. Preferably the polymer constituting the fiber is obtained by mixing (A) 30 to 99 wt.% acrylic copolymer with (B) 1 to 70 wt.% copolymer consisting of an acrylic acid ester and other copolymerizable vinyl monomers, and the pile cloth by using the same is also provided. Formula (1): the flatness:RA=WL/WS [wherein, WL is the length of its long axis; WS is the length of its short axis. and also RAis an average value of the flatness from 10 pieces of fibers extracted randomly].

COPYRIGHT: (C)2008,JPO&INPIT

NISHIDA SOHEI
MIYOSHI MASAAKI

JP2006123353A

November 08, 2007

April 27, 2006

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KANEKA CORP

D01F6/38; D01F6/40; D01F6/54

JPH0734321A	1995-02-03
JPS6350518A	1988-03-03
JP2001226857A	2001-08-21
JP2003301322A	2003-10-24

WO2006008990A1	2006-01-26
WO2002010488A1	2002-02-07

Takao Yanagino
Norio Morioka
Hisayoshi Sekiguchi

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