Acid Dyeing of Wool

Abstract

The nature of the attraction of dyes for textile fibers, how the dyes go on, and what makes them stick so that they resist washing should be explained by any theory of dye ing. Such a theory must also be capable of predicting the effect on the transfer of the dye from bath to fibers of such factors as the amounts of each acid, dye, and salt present in a complicated solution—the dyebath. Earlier papers by Research Associates of The Textile Founda tion, demonstrated that different strong acids including acid dyes combine with wool to very different extents. This new paper describes experiments that contribute to a better understanding of the more complex equilibria which obtain in more complicated baths.