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US 5,876,466 AGranted
Suede-like artificial leather
AssigneeKuraray Co., Ltd.
InventorsHitoshi Nakashima, Hisao Yoneda
Life of this patent
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Abstract
Suede-like artificial leather is described that is treated with at least one dye selected from the group consisting of sulfur dyes, vat dyes and sulfur vat dyes, and 2,2',4,4'-tetrahydroxy benzophenone. The suede-like artificial leather has excellent color resistance to light and color fastness to both washing and dry-cleaning.
Claims17
A suede-like artificial leather, treated with a treatment comprising:
- at least one dye selected from the group consisting of sulfur dyes, vat dyes and sulfur vat dyes;
- and
- a benzophenone compound represented by the following formula (3);
- ##STR8##
1 more element
A process for producing a suede-like artificial leather, which comprises:
- dyeing a suede-like artificial leather with at least one dye selected from the group consisting of sulfur dyes, vat dyes and sulfur vat dyes;
- and
- treating the dyed artificial leather so obtained with a benzophenone compound represented by the following formula (3):
- ##STR9##
1 more element
Dependencies are inferred from the claim text.