Obtención de cuero reechato para confeccionar calzado a partir de pieles ovinas utilizando diferentes niveles de reticulante acuoso.

Abstract

In the fur tanning laboratory of the Faculty of Animal Sciences of the Polytechnic Superior School of Chimborazo, reechato leather was obtained to make footwear from sheep skins using different levels (50, 55 and 60 grams of aqueous crosslinker per kg of paint), applying the methodology of three treatments, modeled in a completely randomized desing, the statistical tests were through the analysis of variance, comparison of means according to Tukey and regression and correlation. Once the physical and sensory analyzes of the leather was carried out, it was established that the best sensory results achieved were using 50 g of aqueous crosslinker (T1), with greater coverage power ( 4.86 points); softness (4.43 points); bright (4.71 points); meanwhile , the highest values for tensil strength (133.66 N/cm) and the elogation percentage ( 104.64%) were reported for physical análysis using 50 g of aqueous crosslinker (T1);the values for dry rub resistance the best result (164.29 cycles) is only when using 55 g of aqueous crosslinker (T2). The behavior of the leather, especially at t1(50 g), to the process of making footwear was normal with multidirectional expansión, tenacity after firing, adequate plasticity according to the shape of the last, resistance to the action of the tip and buttressing machine. The economic evaluation determined that by using 50 grams of aqueous crosslinker, a higher cost- benefit ration was achieved and that it was of $1.34 that is to say that for every dollar invested a profit of 34 cents is expected, therefore it is recommended to use the finish reechato type 50 grams of aqueous crosslinker since physical resistences are archived with the highest sensory ratings that will allow compliance with the quality standards of regulatory bodies and thereby produce leather of the first classification .