Soaking method

Details Soaking method Soaking method

1980-10-27

1982-08-17

Tungol, Maria Parrish

Bleaching and dyeing; fluid treatment and chemical modification

Treatment of hides, skins, feathers and animal tissues

Treatment of untanned skins or hides

435265, C14C 104

Patent

active

043447627

ABSTRACT:
What is disclosed is a method for soaking preserved skins or hides adaptable to the preparation of leather which comprises soaking said skins or hides in an aqueous bath containing a compound selected from the group of compounds of the formula ##STR1## and acid addition salts thereof, wherein R taken alone is --H, --NH.sub.2, --CH.sub.3, or --NHCN, X taken alone is .dbd.O, .dbd.S, or .dbd.NH, and R and X taken together form a five- or six-membered heterocyclic ring having conjugated double bonds and containing only nitrogen as a hetero atom.

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