Abstract: Process for obtaining multicolor effects on textiles made of polyester fibers and blends thereof with cellulosic fibers, by locally applying an aqueous solution of alkaline agents, either thickened or not and free from oxidizing or reducing agents, onto a dried or partially dehydrated unfixed pad-dyeing produced on said fiber material using a disperse dyestuff of the general formulae hereinafter described, allowing the solution to act on the dyeing, thermosoling the material to fix the dyestuff and finishing it in the usual manner.