Solid Tanning preparations, Preparation Method, use of the same and Process for the production of hides and Skins

摘要

Solid Preparations Containing at least one Compound), which is capable of increasing the shrinking temperature of Leather casing, not tanned, at least 10 degree C,For Treatment of the skin in Casing with a Compound) in water at a Temperatu ra from 20 to 50 degree C.At least a Polymer Compound (b), different from the previous one,Carrying a 10 to 80% by weight of the monomer units remains with one or more alkyl 2 to 40 carbon Atoms and the polymer (b) contains 1 to 10 mol / kg Group to acid,Especially groups of carboxylic acid and carboxylate groups and / or other Additives, in case (c).