| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a polyurethane elastic yarn that has excellent elongation, recovery and light resistance and is suitable for a stretch fabric, clothing and the like, and also to provide a production method therefor. <P>SOLUTION: In the production of an elastic yarn comprising polyurethane using a polymer diol and a diisocyanate as starting materials, at least one of the following (A), (B) and (C) is blended: (A) a benzotriazole ultraviolet absorbent and/or a benzophenone ultraviolet absorbent which contains one or more unsaturated bond in the molecule, (B) a benzotriazole ultraviolet absorbent which contains one or more alkoxy in the molecule, and (C) a benzophenone ultraviolet absorbent which contains one or more sulfonic acid group in the molecule. <P>COPYRIGHT: (C)2011,JPO&INPIT |
