Splittable conjugate fiber

Abstract

A splittable conjugate fiber that provides a fiber structure with enhanced compactness, bulkiness and color formation has one member consisting of a polyamide resin composition containing an aromatic polyamide and an aliphatic polyamide and has another member consisting of a fiber forming polymer with no affinity to the polyamide resin composition. Preferably, the aromatic polyamide is a polyamide whose major structural units are composed of an aliphatic dicarboxylic acid and an aromatic diamine. In further preferred modes, the polyamide resin composition consists of nylon-MXD6 and nylon-6, the weight ratio therebetween ranging from 35:65 to 70:30, and the fiber forming polymer is a polyester or polyolefin.

1 - 6 . (canceled) 
   
   
       7 . A splittable conjugate fiber, comprising: one component made of a polyamide resin composition of an aromatic polyamide and an aliphatic polyamide, and another component made of a fiber-forming polymer having no affinity with the polyamide resin composition. 
   
   
       8 . The splittable conjugate fiber of  claim 7 , wherein the aromatic polyamide is a polyamide comprising an aliphatic dicarboxylic acid and an aromatic diamine as main structural units. 
   
   
       9 . The splittable conjugate fiber of  claim 7 , wherein the polyamide resin composition is composed of a nylon MXD6 polymer and a nylon 6 polymer. 
   
   
       10 . The splittable conjugate fiber of  claim 9 , wherein weight ratios of the nylon MXD6 polymer and the nylon 6 polymer are from 35:65 to 70:30, respectively. 
   
   
       11 . The splittable conjugate fiber of  claim 7 , wherein the fiber-forming polymer having no affinity with the polyamide resin composition is a polyester. 
   
   
       12 . The splittable conjugate fiber of  claim 7 , wherein the fiber-forming polymer having no affinity with the polyamide resin composition is a polyolefin.