Reciclaje del baño de pelambre en el remojo de pieles ovinas saladas en la obtención de cuero para vestimenta

Abstract

At Animal Science Faculty skin tanning laboratory from ESPOCH, the use of 3 unhairing bath recirculation levels was evaluated in order to use them in salty sheep soaking process (25%, 50%, and 75% ) compared with a witness treatment with 4 repetitions per treatment and 2 consecutive trials, with 2 experimentable units under a bifactorial and completely randomized desing. The results show that the sheep skin physical endurance evaluation did not register any statistical difference, however a numerical superiority is observed in treatment reports with a 50% of unhairing bath for strain resistance (277,68 N/cm2 ) and elongation percentage (8,68 mm); while the best lastometry was registered in leather under T3 treatment (75%) with an average of 8,68 mm. The 50 % unhairing bath reuse under T2, stimulated the sheep skin sensorial characteristics for softness (4.63 points); fullness ( 4.75 points) and roundness (4.88 points). The economic valuation of sheep skin production registered the highest cost-benefit under T2 treatment with 1,4t; it means that, each dollar invested has a 47% of capital recovery. That's why it is recommended to use the unhairing bath in a 50% in order to eliminate impurities from both the slaughter and preservation of the skin.