Leather-like sheet and method for production thereof

Details Leather-like sheet and method for production thereof Leather-like sheet and method for production thereof

2002-07-23

2008-12-09

Cole, Elizabeth M (Department: 1794)

Stock material or miscellaneous articles

Pile or nap type surface or component

Nap type surface

C428S904000, C428S220000, C442S328000, C442S340000, C442S370000, C427S264000, C427S288000

Reexamination Certificate

active

07462386

ABSTRACT:
The leather-like sheet of the invention comprises a napped part of ultrafine fibers and a grainy part of nonporous elastic polymer randomly existing in the surface of a substrate prepared by infiltrating a porous polymer elastomer into a three-dimensionally intermingled nonwoven fabric of ultrafine fibers of not more than 0.5 dtex, and this is characterized in that the nonporous elastic polymer is infiltrated into the substrate to a depth thereof of from 5 to 20 μm from the surface of the substrate.The production method of the invention is for producing a nubuck-type leather-like sheet of good surface abrasion resistance. A grainy part of resin and ultrafine fibers and a part of the ultrafine fibers are mingled on the surface of the substrate, and the sheet has an elegant and three-dimensional appearance like natural leather.

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