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Abstract

The invention relates to wet degreasing of pelts, skins, hides, leather intermediate products or non-finished leather, with emulsion degreasing agents (D) comprising a mixture (E) of ethoxylation and optionally propoxylation products of a mixture (A) of oxo-alcohols of formula C.sub.nH.sub.(2n+1)--CH.sub.2OH (I), in which n is a number from 9 to 15, and the alkyl radical C.sub.nH.sub.(2n+1)-- is linear, wherein (A) comprises a mixture of positional isomers for at least one of the significances of n, and the proportion of primary linear component in (A) in which the alkyl radical C.sub.nH.sub.(2n+1)-- is a normal primary radical is in the range of 25 to 70% by weight of the mixture (A), and in (E) the average degree of ethoxylation is in the range of 5 to 12, and if the products (E) are also propoxylated the average degree of ethoxylation is superior to the average degree of propoxylation, in the presence of at least one further non-ionic emulsifier which is (F) at least one ethoxylation and optionally propoxylation product of (B) an aliphatic saturated at least twice branched alcohol or mixture, and emulsion degreasing compositions (D') comprising mixtures (E) and products (F), and optionally one or more formulation additives (S).

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First Claim