Aplicación de diferentes niveles de glutaraldehído en combinación con 15% de tara en la curtición de pieles caprinas para tapicería automotriz.

Abstract

The present research was carried out at Laboratorio de Curtición de Pieles of the FCP-| ESPOCH, the objective was to apply different levels of Glutaraldehyde in combination with 15% Tare in the tanning of 24 goat skins for automotive upholstery. For the statistical evaluation of the physical and sensory variables, a Completely Random Design was used. The fresh skins were obtained from the Camal Municipal of Riobamba; the riverside processes were developed, which included washing, rehydration, peeling and lime; to continue, with the decaling, rendering, purging, pickling, degreasing and tanning combining different levels of Glutaraldehyde with Tare. Then we worked with wet finishing processes that include rehydration, cationic retanning, neutralizing, anionic retanning, dyeing and lubrication. To proceed with the drying, softening, staking, sanitizing, sanding and finishing with the dry finish that includes the application of pigments, waxes, casein, acrylic resins, and the final top with hydrolacquers and silicones. The sensory analyses were performed by an experienced judge and the physical analyses were performed in the Laboratorio de Curtición de Pieles of the ESPOCH. The physical characteristics of tensile strength (3669,42 N / cm2) and lastometry (10,98 mm), were higher when tanning the skins with 7% glutaraldehyde; while, the sensory evaluation of softness (4,63 points), and touch (4,38 points) obtained an excellent rating when tanning with 9% glutaraldehyde. On the other hand, in the economic evaluation the highest profitability was observed when working with 9% glutaraldehyde with a cost benefit of 1,14 USD. It is concluded that the best level of tanning was 9% Glutaraldehyde in combination with 15% Tare in caprine skins used in the automotive industry; recommended level in obtaining a resistant material with good sensory performance.