Method of treating leather with improved retaining agents

Details Method of treating leather with improved retaining agents Method of treating leather with improved retaining agents

1997-07-16

1998-10-13

Diamond, Alan

Bleaching and dyeing; fluid treatment and chemical modification

Treatment of hides, skins, feathers and animal tissues

Tanning

98 9433, 98 942, 98 9423, 98436, C14C 322

Patent

active

058206337

ABSTRACT:
The present invention is directed to a method of treating tanned leather to improve its dyeing characteristics while still retaining desired grain break and grain strength. The tanned leather is contacted, preferably by immersion, in a float containing a syntan and a desired colorant. The syntan includes a copolymer of a carboxylic acid monomer and a vinyl ester monomer, such as, vinyl acetate. The retanning method of the present invention provides wide process latitude.

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Handbook of Size Exclusion Chromatography, Ed. Chi-san Wu, Marcel Dekker, Inc., 1995, Chapter I. (Month Unknown).
Lehninger, Albert L., Biochemistry, Chapter 7, p. 133, 1970. (Month Unknown).
Retannage with Polymer Tanning Agents, The Leather Manufacturer, pp., 9-26, 1990 (Month Unknown).

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