Utilización de tres niveles de precurtiente sintético en la curtición de pieles de conejo para peletería

Abstract

In the laboratory of leather tanning, Food Production School at ESPOCH, tanning skins 48 New Zealand rabbit was evaluated with 3 treatments corresponding to the different leveles of synthetic pretan (3, 4 and 5%), two consecutive trials and 4 replicates per treatment, modeled under a completely randomized design, in bifactorial arrangement and size of the unit undergoes 2 skins. The results of the physical resistances such as voltaje (2269,91N/cm2), percent elongation (70%), and lastometría (28mm) determined the highest responses at tanning hides with 5% synthetic pretan (T3) because when compared with the quality requirements of the regulations outweigh leather permisible for each test limits. New Zealand rabbit skins, tanning determined at 5% synthetic pretan as softness (4.62 points) and curvature (4.63 points) while the greater fullness (4.75 points) is obtained, was reported with 3% synthetic percussive, reporting sensory testing the excellent rating. The higher profitability was recorded in New Zealand tanned rabbit skins with 5% synthetic percussive and a benefit cost ratio of 1.44 which means that for every dollar invested a return of 44% are expected to be reported. So it is recommended to use 5% synthetic for tanning skins percussive Zealand rabbit as it improves the physical quality of the skin and sensory rating.