Patent ID: 8021995
Filing Date: 2011-09-20
Classification: D04H,Y10T

Abstract:
1. A spunbonded elastic nonwoven fabric obtained by depositing a fiber mixture into the form of a web, wherein the fiber mixture comprises fibers A comprising a polymer A containing a thermoplastic polyurethane elastomer and fibers B comprising a thermoplastic polymer B other than the thermoplastic polyurethane elastomer, said thermoplastic polyurethane elastomer having a starting temperature for solidifying of 65° C. or above as measured by a differential scanning calorimeter (DSC) and containing 3.00×10 6 or less polar-solvent-insoluble particles per gram as counted on a particle size distribution analyzer, which is based on an electrical sensing zone method, equipped with an aperture tube having an orifice of 100 μm in diameter.