Patent ID: 7132024

Claim:
A method for manufacturing an artificial leather, comprising the steps of: forming ultramicrofibers having an islands-in-sea type cross-sectional configuration by blend spinning or conjugate spinning; forming a porous reinforcement sheet of low compactness from at least one material selected from the group consisting of polyester, polyurethane and polyolefin by spunbonding, meltblowing or calendering, or from twisted yarn (100˜1000T/m) by a weaving or knitting machine, wherein the reinforcement sheet has a thickness of 0.01–1.0 mm, a weight per unit area of 10–200 g/m 2 and a mesh size of 10–150 mesh; using needlepunch or spunlace to entangle the ultramicrofibers with the reinforcement sheet thereby forming a complex reinforced ultramicrofiber nonwoven fabric; impregnating or coating the nonwoven with an elastomer resin composition; subjecting the nonwoven fabric to a coagulating process, a washing process, a drying process and a removing process to produce a semi-product leather; and processing the semi-product leather to produce the artificial leather with the textures of a genuine leather.