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Process for preparation of colored suede sheet materials

  • US 4,046,504 A
  • Filed: 10/20/1975
  • Issued: 09/06/1977
  • Est. Priority Date: 10/23/1974
  • Status: Expired due to Term
First Claim
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1. A process of preparing suede sheet materials having desirable tactile characteristics and good coloring comprising the steps of:

  • a. coloring fibers throughout with dope dyes;

    b. forming said colored fibers into a fibrous mat;

    c. impregnating said mat with a binder composed mainly of an elastomer;

    d. treating said impregnated mat to form a napped surface thereon, the size of the fibers in the resulting nap ranging from 0.1 to 0.0005 denier; and

    e. dyeing the napped sheet material.

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