| 摘要 |
PROBLEM TO BE SOLVED: To provide a fiber having excellent stainproofness and free from water pollution problem. SOLUTION: The fibrous material contains 5-50 wt.% polylactic acid resin having a molecular weight of≥10,000 and <50,000 and 50-95 wt.% polylactic acid resin having a molecular weight of≥50,000 and≤200,000. Preferably, the polylactic acid resin has a melting point of≥150°C and the polylactic acid fiber has an initial tensile strength of≥1.5 cN/dtex and a boiling water shrinkage of≤12%. The polylactic acid fiber is e.g. multifilament, monofilament, flat yarn and staple fiber. COPYRIGHT: (C)2005,JPO&NCIPI
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