Napped leather-like sheet material and method of producing same
AssigneeKuraray Co., Ltd.
InventorsHisao Yoneda, Yoshiki Nobuto, Norio Makiyama
Life of this patent
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Abstract
A napped leather-like sheet material comprising an entangled nonwoven fabric composed of ultrafine fibers and an elastomer contained therein and having a nap made of ultrafine fibers on one or both sides thereof, which material is provided with a silk protein substance and a softening agent on the surface portion of the napped face or faces; and a method of producing the above napped leather-like sheet material which comprises applying a liquid containing a silk protein substance and a softening agent to the surface of a napped leather-like sheet material by, for example, a gravure printing or spraying technique.
Claims20
A napped artificial leather sheet material wherein (1) at least one silk protein substance selected from the group consisting of silk proteins and partial hydrolyzates of silk proteins and (2) a softening agent has been applied to a surface portion of one or both napped faces thereof.
A method of producing napped artificial leather sheet materials which comprises applying (a) a liquid containing (1) a silk protein substance selected from the group consisting of silk proteins and partial hydrolyzates of silk proteins, and (2) a softening agent, or (b) applying a liquid containing said silk protein substance and a liquid containing a softening agent simultaneously or separately, to the napped surface(s) of a napped artificial leather sheet material comprising an entangled nonwoven fabric comprising ultrafine fibers and an elastomer contained therein and having a nap made of ultrafine fibers on one or both sides thereof.
Dependencies are inferred from the claim text.