Abstract: A process for the coloration of a union of polyester and cellulosic textile materials which comprises applying thereto a liquor or paste containing a disperse dye and a dye containing a cellulose reactive group having a quaternary nitrogen substituent, or the precursors of such a dye, and thereafter heating the textile material at such a temperature and for such a period as to fix the dye on the textile material, characterized in that the pH of the liquor or paste is from 5.8 to 8.0.

Abstract: Process for the coloration of cellulose textile materials which comprises applying a dyestuff containing one or more s-triazinyl groups bearing a quaternary nitrogen substituent, or the precursors of such a dyestuff, in the absence of an acid-binding agent and heating the treated textile material to 150.degree. C. or higher to fix the dyestuff to the cellulose.Improved coloration is often achieved by applying urea or dicyandiamide with the dyestuff.The process is particularly valuable for the coloration of cellulose in polyester/cellulose unions when a disperse dye may be applied simultaneously with less problems than encountered with conventional alkali fixed reactive dyes.