| 摘要 |
PURPOSE:A thermoplastic elastomer and a polyamide or polyester are conjugated in a specific state to produce crimping, elastic conjugate fiber having elastic properties of fubber as well. CONSTITUTION:The objective fiber is side-by-side or eccentric sheath-core conjugate one consisting of a thermoplastic elastomer and a polyamide or polyester wherein following conditions are satisfied: 4>=b/a>=1.2 (a is the length of the minor axis passing through the center of the fiber cross section; b is the length of the major axis), 23>=E/P>=0.43(E is the share of the elastomer in the fiber cross section; P is the share of the polyamide or polyester) and the distance between Ei (the grativey center of the elastomer) and Pi (that of the polyamide or polyester) >=a/2. When expanded, the resultant fiber takes a screw structure (A) then chagnages to the form of (C). |
