FIBROUS STRUCTURAL MATERIAL OF ALIPHATIC POLYESTER

摘要

PROBLEM TO BE SOLVED: To provide a fibrous structural material of an aliphatic polyester fiber having dyed color fastness improved to≥4th class against friction in a dried state. SOLUTION: This fibrous structural material having <70 L* value is provided by consisting of the aliphatic polyester fiber containing 0.5-6.0 mass% boron-based surfactant, and having≥4th class dyed color fastness against the friction as measured by a friction tester type II based on the standard of JIS-L-0849 in any of the dried state and moist state. COPYRIGHT: (C)2007,JPO&INPIT