Aplicación de una curtición conbinada con granofin F 90, y tres diferentes niveles de sulfato de aluminio en pieles ovinas

Abstract

In the laboratory of skin tanning FCP, the ESPOCH, applying a combined tanning with Granofin F 90 was evaluated in combination with 4% Granofin F 90, and three different levels of aluminum sulphate sheep skins, spread over 3 treatments, 5 replications and 2 trials, for a total of 30 modeled under a Complete Randomized Design (DCA) under bifactorial experimental units. Applying 6% aluminum sulphate (T1), provided greater tensile strength (2037,65 N/cm2), while the best elongation percentage (55,08%) was determined with 7% tanning, and the highest temperature was reached in leathers tanned with 8% aluminum sulphate (77,50°C). Sensory evaluation determined the highest rating of fullness (4,70 points), fullness (4,50 points) and finesse flower (4.50 points), the tanned with 8% aluminum sulphate (T3), in which determines very smooth leathers, compact properly and especially with an insuperable finesse flower , features that were reflected in the quality of leather shoes. By producing hides under strict control processes, standardization among different production batches both physical resistance and sensory scores are obtained. The use of 8% aluminum sulphate provided the highest profitability with a reasonable benefit- cost 1,38; it means 38% of profit. It is advisable to use 8% of aluminum sulphate to record very high physical and sensory responses