Non-woven polypropylene fabric

摘要

Provided is a non-woven fabric produced by using a polypropylene-based resin composition containing a specific low-crystalline polypropylene. The non-woven fabric is a non-woven fabric obtained by achieving reductions in denier values of fibers, the non-woven fabric being excellent in dispersibility of the fibers.

主权项

1. A non-woven fabric, is obtained by a process comprising producing a non-woven fabric from a polypropylene-based resin composition,
wherein the polypropylene-based resin composition comprises a low-crystalline polypropylene and a high-crystalline polypropylene; the polypropylene-based resin composition comprises the low-crystalline polypropylene at a content of from 5 to 50 mass % with reference to a total of the low-crystalline polypropylene and the high-crystalline polypropylene; the polypropylene-based resin composition has a melt flow rate of from 500 to 2,000 g/10 min and a melting endotherm ΔH measured by DSC of from 50 to 95 J/g; and the low-crystalline polypropylene satisfies (a) to (f): (a) [mmmm] is from 20 to 60 mol %; (b) [rrrr/(1-mmmm)]≦0.1; (c) [rmrm]>2.5 mol %; (d) [mm]×[rr]/[mr]2≦2.0; (e) weight-average molecular weight (Mw) is from 10,000 to 200,000; and (f) molecular weight distribution (Mw/Mn)<4 wherein the low-crystalline propylene homo-polymer, and wherein the process comprises a meltdown method.