Acrylic shrinkable fiber and process for producing the same

Acrylic shrinkable fibers which have a high degree of shrinkage even after dyeing and assume a satisfactory color. The acrylic shrinkable fibers, which can be dyed in a satisfactory color and have a high degree of shrinkage even after dyeing, are characterized by being obtained by spinning a dope co...

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1. Verfasser: NISHIDA SOHEI,KAWAMURA KOHEI,EBISU TOSHIAKI
Format: Patent
Sprache:eng
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Zusammenfassung:Acrylic shrinkable fibers which have a high degree of shrinkage even after dyeing and assume a satisfactory color. The acrylic shrinkable fibers, which can be dyed in a satisfactory color and have a high degree of shrinkage even after dyeing, are characterized by being obtained by spinning a dope containing a polymer obtained by copolymerizing methallylsulfonic acid. The acrylic shrinkable fibers are produced from a dope containing a polymer composition obtained by blending a polymer (A) comprising units derived from acrylonitrile and a halogenated and sulfonated monomer with a polymer (B) comprising units derived from acrylonitrile, an acrylic ester, sodium methallylsulfonate, and other sulfonated monomer.