Curtición de pieles caprinas en combinación de mimosa Y sulfato de aluminio para calzado

Abstract

Goat Leather Production for Footwear Manufacturing through Vegetable Tanning Using Different Levels of Mimosa (12%, 14%, and 16%) in Combination with 4% Aluminum Sulfate. Fifteen goat hides were subjected to this study, distributed across three treatments, each with five replications, and modelled with a completely randomized design. The leather quality was an essential parameter evaluated through physical properties (tensile strength, elongation percentage, abrasion resistance, and flexural strength), determined by Tukey's test, while the Kruskal-Walli’s test allowed for the assessment of sensory variables (fullness, fineness of grain, and roundness). Tannery and Agro-industrial Fibers Laboratory of the Faculty of Animal Sciences at the Polytechnic School of Chimborazo was the place to conduct this research. The findings reported that employing 14% mimosa yields better tensile strength (7903.98 N/cm²), the highest elongation percentage (70.29%) resulted after using 16% mimosa, and the best result in abrasion resistance resulted from using 12% mimosa (180 cycles). The findings related to flexural strength determined no significant differences among the levels. The best results in sensory variables fullness (5 points) and roundness (5 points) appeared after tanning with 16% mimosa, while the best rating for the sensory variable fineness of grain (5 points) resulted after tanning with 12% mimosa. Economic evaluation determines that the highest profit is obtained when tanning with 14% mimosa, with a value of $1.80, representing an 80% profit margin. Therefore, tanning goat hides with mimosa is an aspect to consider to promote the adoption of clean technologies that prevent environmental pollution.