RESEARCH ON THE SELECTION OF DYES FOR DYING MIXED YARN BASED ON SILK AND COTTON FIBER

Abstract

The article presents the results of an experimental study on the choice of dyes for dyeing cotton-silk blended yarns, which ensures the purity of color and uniformity of color on both components of the blended yarn. Dyeing cotton and silk fibers with the same active dye, regardless of the color of the dye, does not make it possible to obtain the same intensity and okarski and, accordingly, the degree of use of the dye differs. The process of diffusion of the dye into the fiber and the mechanism of binding with functional groups when dyeing yarn from mixed fibers differs from the process of dyeing a single-component yarn; it has been shown that the evenness of the dye, regardless of the fibrous composition at low dye concentration, has positive results. This pattern is observed when dyeing individual fiber components and mixed yarns. Considering that textile materials can have a different structure and fibrous composition, it is necessary to select the appropriate composition for dyeing and technological mode