POLYLACTIC ACID-BASED FIBER AND POLYLACTIC ACID-BASED NON-WOVEN FABRIC

摘要

PROBLEM TO BE SOLVED: To provide a polylactic acid-based fiber showing a good fiber-forming property, without accompanying the generation of uncomfortable irritating smell in its production process, and also having hydrolytic decomposition resistance and strength-holding rate after passing a definite period, capable of being provided for a practical use, and a poly lactic acid-non-woven fabric.;SOLUTION: This polylactic acid-based fiber and the non-woven fabric constituted by the fiber are provided. The fiber is provided by having a first polylactic acid-based polymer of which at least a part of carboxyl group terminals is sealed by an anti-hydrolysis agent, and a second polylactic acid-based polymer in which the carboxyl group terminals are not sealed by the anti-hydrolysis agent, as constituting components, and at the cross section of the fiber, forming the inside part by the first polylactic acid-based polymer and the outside part covering the first polylactic acid-based polymer by the second polylactic acid-based polymer.;COPYRIGHT: (C)2008,JPO&INPIT