| 摘要 |
A polyolefin-based composition, a method for preparing a polyolefin-based monofilament by using the composition, a polyolefin-based fiber, the nonwoven prepared from the fiber, and a method for preparing the nonwoven are provided to improve the spinning property of nonwoven and to lower thermal boding temperature. A polyolefin-based composition comprises an isotactic homopolypropylene; and a propylene-1-butene random copolymer. Preferably the isotactic homopolypropylene has a melt index of 4-30 g/10 min, an isotactic index of 90 % or more and a melting point of 160-165 deg.C; and the propylene-1-butene random copolymer contains 3 wt% or more of butene and has a melt index of 4-30 g/10 min and a melting point of 150 deg.C or less.
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