| 摘要 |
PROBLEM TO BE SOLVED: To provide a polylactic acid-based monofilament yarn which is excellent in biodegradability and is suitable for obtaining a thin fabric with a high quality and being friendly to environment. SOLUTION: The polylactic acid-based monofilament yarn is a monofilament yarn obtained by melt-spinning a poly L-lactic acid with an average molecular weight of 50,000-100,000 and an optical purity of 95.0-99.5%, orientating the resultant to make a multi-filament yarn with a total fineness of 30-600 dtex, and furthermore, dividing it into filament yarns, and has a monofilament fineness of 3-30 dtex and a hot water shrinkage of not more than 15%. COPYRIGHT: (C)2010,JPO&INPIT
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