The Color Development and Color Fastness in Mixture Dyeing of the Acid Dye for Craft Dyeing

In dyeing craft fabrics, mixture dyeing often fails to develop the desired colors. Interactions between the mixed dyes, and between dyes and substrate polymers hamper the color development and uniformity. This study reports on how the colors on silk and nylon fabrics develop when two commercially available acid dyes are mixed and used. In the absorption spectrum of the solution of the acid dyes mixed, the reflectance spectra of the dyed fabrics, and the color differences of the dyed fabrics, were measured to find the reasons for the failure. The fastness to light of the dyed fabrics was also measured. As a result, several important points to be noted in dyeing were shown.11KJ00004265249departmental bulletin pape