Use of liposomes as auxiliary products in the hide dyeing process. Influence on the organoleptic and mechanical properties of dyed leather

Liposomes have been used as auxiliary products in sheepskins dyeing giving rise to dyeings of high levelness and very soft leathers. In an earlier paper, the possible application of two pro-liposome formulations, containing soybean phospholipids, in the dyeing process of 2 mm hides was compared with that of other commercially available chemicals such as a chemical based on a sodium salt of a condensed naphthalene sulphonic acid and a chemical based on an ethoxylated fatty amine. The aim of this work was to improve the tinctorial properties of dyed leather. However, the influence of pro-liposome application on the mechanical properties of dyed leather has not been determined in earlier works. Consequently, in this paper, which can be regarded as a continuation of the previous study, the influence of the mentioned auxiliary agents on the organoleptic and mechanical properties of the leather produced is evaluated. The statistical analysis of the data obtained revealed which chemical yielded the best results of each property.