NONWOVEN FABRIC EXCELLENT IN FLEXIBILITY AND WATER RETENTIVITY, AND METHOD FOR PRODUCING THE SAME

摘要

PROBLEM TO BE SOLVED: To provide a sheet-like nonwoven fabric comprising a biodegradable polymer and having flexibility and water retentivity.;SOLUTION: The sheet-like nonwoven fabric includes a fiber structure of a biodegradable polymer having a fiber diameter of 500 nm to 30 μm, in which the density alternately changes between low and high at an interval of 100 μm to 2 mm, and sparse contexture has a bulk density of 20 to 90 kg/m³ and dense contexture has a bulk density of 100 to 200 kg/m³. The method for producing the sheet-like nonwoven fabric includes a process of fabricating a fiber structure by an electrospinning method, and a process of performing hydroentanglement of the fiber structure to form dense contexture and sparse contexture.;COPYRIGHT: (C)2013,JPO&INPIT