Utilización en la curtición de pieles ovinas tres niveles de blancotan 2x, como sustituto ecológico del cromo

Abstract

In the tannery workshop of the ESPOCH School of Animal Sciences, the tanning of sheep skins was evaluated using three levels of blancotan 2X, as an ecological substitute for chrome, the number of units was 24 sheep skins that were modeled under a Completely Random Design. The results indicate that the tanning of sheep leathers with 7 % blancotan 2X, improves the tensile strength (2130.34 N / cm2), while the greater elongation is achieved by tanning with 6 % (60.42 %), whereas the best lameness was recorded by the leathers of the control group (10.56 % m). The sensory evaluation established the highest results when using 6 % blancotan 2X, a material with better filling (4.83 points); fineness of flower (4.83 points) and greater roundness rating (5 points). Tanning ovine skins with blancotan 2X, provides physical resistances and sensory qualifications similar to leathers tanned with chrome, therefore this clean technology is validated to control the harmful effects that chromium has on the environment, and its increasingly higher restrictions on the environmental legislation of our country. When carrying out the economic evaluation of the production of first quality ovine hides, the highest results were determined by using higher blancotan 2X tanning levels, since the cost benefit ratio was 1.34, meaning that for every dollar invested it is expected a profit of 34 cents.