Processes to alter the wettability and absorbency of water in textile fibres.In order to increase the wettability and absorbency of water in cotton fibers and to modify the properties of fìsicas polye

摘要

"Processes to alter the wettability and absorbency of water in textile fibres.In order to increase the wettability and absorbency of water in cotton fibers and to alter the properties fu00ecsicas of polyester staple fiber, and polyester fiber, aromatic.Textile fibers are treated with enzymes in the absence of surfactants, with the effect of increasing the wettability and absorbency of the fibers.The enzymes are pectinases, cellulase, protease, lipase or combinations thereof.The wetting properties of cotton fibers are substantially improved by treatment with a mixture of cellulase and pectinase.Were studied the effects of five hydrolitic enzymes in different tissues, improving the hidrofilicidade polyester.Four of the five lipases studied improve the wetting properties to water and the absorbance of the same tissue regular polyester,More than the alkaline hydrolysis under optimal conditions (NaOH 3 N, 55 u00b0 C for 2 hours).Compared to the aqueous hydrolysis, the enzymatic reactions have been shown to be effective under more moderate conditions, including a relatively low concentration (0.01 g / L),A shorter reaction time (10 minutes) at a temperature (25 u00b0 C).Unlike the results with alkaline hydrolysis, the improved wettability is accompanied by retention of total resistance.The lipase was also effective in the improvement of the wetting properties and the absorbance of sulfonated polyester fabrics and polyester microdenier.