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Process for mineral tanning, re-tanning or leather after-treatment

机译:矿物鞣,复鞣或皮革后处理的工艺

摘要

A process for the production of mineral tanned or/and re-tanned or/and after-treated leather or pelt, wherein before the mineral tanning, directly after the mineral tanning, directly before the mineral re-tanning, after the mineral re-tanning or/and with the after-treatment of a fatliquoring with a polyvalent metal cation, the substrate is treated with (A) a polymeric carboxylic acid containing alpha -hydroxyacrylic acid units, optionally in salt form, as constituent units of the polymer, by which a high exhaustion of mineral (re)tanning agent, an excellent distribution of the tanning agent and very pleasant soft handle of the (re)tanned leather resp. an outstanding water resistance of mineral after-treated fat-liquored leather can be achieved.
机译:一种鞣制或/和/或再鞣制或/和后处理的皮革或毛皮的矿物的生产方法,其中在矿物鞣制之前,紧接在矿物鞣制之后,紧接在矿物鞣制之前,在矿物鞣制之后或/和用多价金属阳离子加脂的后处理,将底物用(A)含有α-羟基丙烯酸单元(任选地呈盐形式)作为聚合物的构成单元的聚合羧酸进行处理,通过矿物质(复鞣剂)的高耗竭性,鞣剂的出色分布以及(复鞣革的)皮革的手感非常柔软。矿物后处理的脂软皮革具有出色的耐水性。

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