Curtición de pieles vacunas para tapicería, utilizando diferentes niveles de Caesalpinia spinosa (Tara) aplicando el método convencional

Abstract

In the tanery laboratory of the FCP, of the ESPOCH, it was evaluated; the tanning of vaccine skins whith three levels of tara and they are compared with a traditional tanning (chrome), for the investigation; the experimental units were 24 pieces of leather vaccines, modeled in a completely random design. The results indicate that, when processing skins with 18 % Caesalpiniaspinosa, a first quality material was obtained to obtainleather for car upholstery and that it was superior to chrome tanned leather which has many drawbacks due to its high degree of contamination. The evaluation of the physical resistances of the vaccine leather determined the highest results when using 18 % of tara since it was obtained a greater resistance to the tensión (4356,68 N / cm2), and porcentage of elongation (70 %). The sensory scores determined the highest (excellent) scores in tanned skins with 18 % tare in terms of fullness (4.83 points) softness (4.83 points) and roundness (4.50 points), i.e. a highly moldable material, soft and that provides a special confort at the time of the confection and the use of furniture tapestry, When using 18 % of tara, in the tanning of vaccines skins it is posible to raise the profitability since the benefit / cost ratio was 1.25, i.e. for each dollar invested a yield of 25 cents is expected, resulting in an economically very profitable activity.