ARTIFICIAL LEATHER HAVING EXCELLENT STRETCHABILITY AND METHOD FOR PRODUCING THE SAME

摘要

PROBLEM TO BE SOLVED: To provide an artificial leather having excellent stretchability in the longitudinal direction. SOLUTION: This artificial leather has the excellent stretchability, >=15% elongation in both the longitudinal direction and the width direction and >=80% elongation recovery ratio in both the longitudinal direction and the width direction and is composed of a fiber-entangled material comprising ultrafine fibers having <=0.9 dtex single fiber fineness and a high polymeric elastic body. The method for producing the artificial leather having the excellent stretchability comprises laminating a fiber web comprising the ultrafine fibers having <=0.9 dtex single fiber fineness onto a knitted or a woven fabric, entangling and integrating the fiber web with the knitted or woven fabric, forming a sheet composed of the ultrafine fibers and high polymeric elastic body, then carrying out a shrinking treatment under conditions for more greatly shrinking the fibers constituting the knitted or woven fabric than the ultrafine fibers, forming a buckled structure of the ultrafine fibers and subsequently removing the knitted or woven fabric.