| 摘要 |
PROBLEM TO BE SOLVED: To provide a biodegradable filament nonwoven fabric having high elongation degree, excellent fluff prevention property and good forming characteristics. SOLUTION: The biodegradable filament nonwoven fabric includes a sea-island conjugated filament having a birefringence of≤0.012 and is obtained by melt-spinning of 100 wt.% of a polylactic acid polymer having a melting point of≥150°C and 0.5-30 wt.% of an aliphatic polyester copolymer having a melting point of≤140°C at a melt flow ratio of the polylactic acid polymer and the aliphatic polyester copolymer of between 0.2 and 1.5, wherein the polylactic acid polymer forms the sea part and the aliphatic polyester copolymer forms the island part. COPYRIGHT: (C)2011,JPO&INPIT |
