Patent ID: 8778126
Filing Date: 2014-07-15
Classification: D04H,D06N,Y10T

Abstract:
1. A method of producing a substrate, the method comprising: (1) producing an entangled nonwoven fabric comprising microfine fiber-forming fibers comprising a water-soluble, thermoplastic polyvinyl alcohol-based resin as a removable component; (2) adding water to at least one surface of the entangled nonwoven fabric and hot-pressing the surface added with water, to obtain a nonwoven fabric comprising (i) a densified layer and (ii) a portion other than the densified layer; (3) impregnating an aqueous emulsion of a binder resin into the portion other than the densified layer and coagulating the impregnated binder resin; and (4) converting the microfine fiber-forming fibers into bundles of microfine fibers by extracting the water-soluble, thermoplastic polyvinyl alcohol-based resin, to obtain a substrate that is suitable for an artificial leather.