公开(公告)号：EP3128071A4

公开(公告)日：2018-01-03

申请号：EP15774301

申请日：2015-03-20

Applicant: TORAY INDUSTRIES

Inventor： KURODA AKITO ,  HIROSE TOMOHARU ,  UENO MASARU ,  YAMANO KOJI ,  OKAJIMA KATSUYA ,  MATSUZAKI YUKIHIRO ,  MATSUOKA YU ,  NISHIMURA HAJIME ,  YANAGISAWA SATOSHI

IPC: D06N3/00

CPC classification number: D06N3/0011 ,  B32B3/30 ,  B32B5/022 ,  B32B5/024 ,  B32B5/026 ,  B32B5/06 ,  B32B5/08 ,  B32B5/26 ,  B32B2250/20 ,  B32B2260/021 ,  B32B2260/046 ,  B32B2262/023 ,  B32B2262/0284 ,  B32B2262/12 ,  B32B2274/00 ,  B32B2437/00 ,  B32B2601/00 ,  B32B2605/003 ,  B32B2605/08 ,  D01D5/36 ,  D01F8/06 ,  D01F8/14 ,  D04H1/4291 ,  D04H1/435 ,  D04H1/44 ,  D04H1/74 ,  D06N3/0004 ,  D06N3/0006 ,  D06N3/0009 ,  D06N3/004 ,  D06N3/04 ,  D06N2201/0227 ,  D06N2201/10 ,  D06N2203/045 ,  D10B2501/00 ,  D10B2505/08 ,  D10B2505/12

Abstract: [Problem] The present invention provides artificial leather including an entangled fiber mass of ultrafine fibers and a polymeric elastomer and having a wet feel and an elegant consistent appearance similar to those of natural nubuck leather, and also provides a production method therefor. [Means of solution] Accordingly, the artificial leather of the present invention is an artificial leather including an entangled fiber mass of ultrafine fibers having a monofilament fineness of 0.01 dtex or more and 0.50 dtex or less and a polymeric elastomer; wherein at least one surface is napped; the cross-sectional profile curve of the napped surface has an arithmetic mean height Pa of 26 µm or more and 100 µm or less; the arithmetic mean height Pa of the cross-sectional profile curve of the opposite surface is 20% or more and 80% or less of the cross-sectional roughness Pa of the napped side; the existence frequency of asperity peaks found in the cross-sectional profile curve of the napped surface is 1.8 or more and 20 or less per 1.0 mm; and a woven or knitted fabric lamination is present near the opposite surface at a depth position of 10% or more and 50% or less.