| 摘要 |
Leather treatment agent containing a mixture a) of a carboxylic acid X-COOH I wherein X represents -[R-CO-Z-(R'-Z)a]b-CO-R-COOH 1 or -R''-(Z-R')c-Z-CO-R-COOH 2 and the symbols have the meaning described in more detail in the description, and b) of a compound containing at least one primary, secondary or tertiary amino group, with a molecular weight of 200-20,000, are used in processes for tanning, pretanning, retanning, dyeing or fat liquoring pelts or pretanned leather or fully tanned leather.
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