| 摘要 |
Leather treatment agent and its use A b s t r a c t 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. Le A 23 942 |
