| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a polyurethane elastic fiber that can be obtained by dry spinning using a dope and a fiber treatment agent in which coagulation of a fatty acid metal salt is suppressed, and has a spinning production stability, a good unreeling property from a package, and a friction resistance to provide a good fiber processability. <P>SOLUTION: The polyurethane elastic fiber includes 100 pts.wt. of a polyurethane polymer, 0.01 to 3 pts.wt. of a fatty acid metal salt having 10 to 30 carbon atoms with respect to 100 pts.wt. of the polyurethane polymer, and 0.00001 to 5 pts.wt. of a polycarboxylic acid based copolymer compound. <P>COPYRIGHT: (C)2013,JPO&INPIT |
