EASILY FIBRILLABLE POLYESTER FIBER

摘要

PROBLEM TO BE SOLVED: To provide an easily fibrillable polyester fiber stably giving a uniform high-quality fiber having excellent color tone over a long period. SOLUTION: The fiber is composed of a polyester produced by the polycondensation in the presence of a titanium alkoxide or a reaction product of a titanium alkoxide with an aromatic polybasic carboxylic acid (or its anhydride) and a specific phosphonoacetic acid derivative. The polyester is incorporated with 0.5-2.0 wt.% polyoxyethylene polyether and 0.1-1.0 wt.% organic sulfonic acid metal salt. COPYRIGHT: (C)2004,JPO&NCIPI