Comparación de dos productos químicos desengrasantes versus un natural, en el lavado de lana ovina.

Abstract

The objective of this research was to compare two chemical degreasing products vs. a natural one to wash sheep wool (T1 ethyl acetate, T2 perchloroethylene and one of natural origin T3 agave) plus detergent, where the size of the experimental unit was 10 samples with a weight of 200g per sample, having a total of 6000g. A completely randomized design (DCA) was applied, analysis of variance, separation of means according to Tukey and the Kruskall, Wallis test for non-parametric variables, physical and sensory tests were performed in the Laboratory of Agroindustrial Wools and Fibers, Faculty of Livestock Science – ESPOCH. The physical properties were studied: light fastness (points), elongation percentage (%) and lastometry (mm) of woven sheep wool and sensory tests: color intensity (points), touch (points) and softness (points). When comparing the results, it was determined that there were no significant differences between treatments for the variables light fastness, however for the percentage of elongation there were highly significant differences in T1 ethyl acetate plus detergent, with an average of (35.75%) followed by T3 agave cabuya with an average of (28.75%) and finally T2 with a value of (27.5%). On the other hand, in the physical property lastometry there were no significant differences in the washing; The sensory evaluation showed highly significant differences between the treatments TheT2 (perchloroethylene plus detergent) presented the best results in color intensity (4.60 points), touch (4.40 points), and softness (4.20 points). It was proved that the best treatment was obtained by T2 since it showed better degreasing in the wool washing process. Therefore, we recommend promoting the use of new technologies in the textile industry that are environmentally friendly.