| 摘要 |
PROBLEM TO BE SOLVED: To provide a polypropylene-based nonwoven fabric having excellent strength, feeling and elasticity. SOLUTION: This nonwoven fabric comprises fibers including a propylene-α- olefin random copolymer polymerized by using a metallocene catalyst, and having characteristics of (A1) 10-100 g/10 min MFR, (A2) 110-140 deg.C Tm, (A3) <=10 deg.C (T80 -T20 ), and (A4) 2-23 mol% content of an α-olefin as at least one component. The nonwoven fabric is obtained by carrying out heat treatment at 100-130 deg.C, and has >=30% area shrinkage at 125 deg.C, and <=70% retention of the tensile strength at 20% elongation before and after the heat shrinkage. |
