POLYESTER STAPLE FIBER AND CLOTHES-WADDING COMPRISING THE SAME AND METHOD FOR PRODUCING POLYESTER STAPLE FIBER

摘要

PROBLEM TO BE SOLVED: To provide high quality polyester staple fibers which can be produced in good productivity and whose thickness unevenness and abnormality such as cross section abnormality and fusion are extremely reduced in comparison with conventional fibers, and to provide clothes-wadding comprising the polyester staple fibers.;SOLUTION: The polyester staple fibers are characterized in that the polyester constituting the staple fibers is a polyester which is produced in the presence of a catalyst consisting mainly of a titanium compound (excluding titanium dioxide) and does not contain a germanium compound and an antimony compound or contains the germanium atoms and the antimony atoms in a total amount of ≤30 ppm based on the polyester.;COPYRIGHT: (C)2005,JPO&NCIPI