Carved Leather for a Leather Goods Using Mixed Or-ganic and Inorganic Tanning

Abstract

Obtaining cut leather for leather goods through mixed tanning; organic and inorganic. It used 9 bovines (Bosindicus) Brahman skins, cut in half (18 bands), distributed in 3 treatments, 6 repetitions and modeled with completely random design, carried out in a tanner. The Kruskal Wallis test was used for the statistical analysis of checking the tensile strength, elongation, dry rub and shrinkage temperature, the tests were carried out in the Tannery Laboratory of the College of Animal Sciences. Sensory tests of touch, carved effect, fullness and softness were carried out by a judge. Treatment with a mimosa at 14%, record greater resistance to stress (1142,48 N/cm2), better elongation percentage (68,75%), and lastometria (10,10 mm). The evaluation of the sensory qualifications determined the highest scores in the treatment with a mimosa at 16%, the effect of carving 4,67 and the roundness 4,5 points, reaching thus, qualifications of excellence according to the Spanish Association in the Leather Industry: Standards Leather and footwear techniques 2a.ed. Barcelona, concluding that these two treatments turned out to be the most appropriate. The production cost of the skins ranged from 0,94 to 1,03 ctvs. /foot², which turns out to be competitive. It can be seen that the cost benefit ratio was higher in the treatment with 16% mimosa, reaching a value of 1,41, that is, for each dollar invested, there is a utility of 41 cents. Recommended to use said treatment because it has high standards of sensory quality and resistance in the skins, and as there are no statistical differences it is affirmed that the skins subjected to this treatment have a uniform quality.