| 摘要 |
PROBLEM TO BE SOLVED: To provide a soft nonwoven fabric having sufficiently high mechanical strengths and both good softness and fluffing resistance with good balance therebetween, besides having excellent spinnability, extensibility and embossability. SOLUTION: This soft nonwoven fabric comprises conjugate fibers each composed of a propylene-based resin (A) continuously forming in the length direction at least part of the fiber surface and a 2nd propylene-based resin (B) forming the other part in the weight ratio (A)/(B) of (80:20) to (20:80); wherein the propylene-based resin (A) comprises (1) a propylene homopolymer or propylene-based random copolymer of propylene and ethylene and/or a 4-8Cα-olefin and (2) a propylene based block copolymer composed of a (a) 20-70 wt.% of a fraction insoluble to 25 deg.C n-decane as a polypropylene component <=10 mol% in the ethylene and/or 4-8Cα-olefin unit content and (b) 80-30 wt.% of a fraction soluble to 25 deg.C n-decane as a copolymer rubber component 20-70 mol% in the ethylene and/or 4-8Cα-olefin unit content in specific proportions.
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