FIBROUS SUBSTRATE FOR ARTIFICIAL LEATHER AND ARTIFICIAL LEATHER USING THE SAME

摘要

PROBLEM TO BE SOLVED: To obtain a fibrous substrate for artificial leather, capable of providing suede-like artificial leather and grained artificial leather having natural leather- like touch feeling and appearance and high-class feeling free from conventional artificial leather. SOLUTION: This fibrous substrate is composed of ultrafine fiber bundle in which (A) 3-50 ultrafine fibers comprising an elastic polymer and having <=0.5 denier average fineness is mixed with (B) >=15 ultrafine fibers and the ultrafine bundle comprises a substrate satisfying the following items 1 to 3. (l) A ratio (A/B) of the component A to the component B in the ultrafine fiber bundle is 1/5. (2) A weight ratio (A/B) of the component A to the component B in the ultrafine fiber bundle is (10/90) to (60/40). (3) The circumference of each ultrafine fiber (A) comprising the elastic fiber is enclosed with the ultrafine fiber comprising the elastic polymer.