Wet transfer process

In a wet transfer process for the dyeing or printing of synthetic or natural nitrogenous fibrous textile material which comprises (1) applying to an inert support a printing ink comprising (a) at least one dye, fluorescent brightening agent or mixtures thereof, (b) a binder or thickener, and (c) water, an organic solvent or mixtures thereof, (2) drying said ink, (3) bringing the treated side of the support into contact with the surface of the said textile material to be dyed said textile material having been pretreated with an aqueous solution or emulsion, (4) subjecting support and textile material while in contact, with or without mechanical pressure, to a heat treatment of 100.degree. to 130.degree. C., for 1 to 100 seconds, and (5) separating the thus dyed or printed material from the support, the improvement wherein the inert support is a hydrophobic inert support, the printing ink contains at least one non-sublimable dye or optical brightening agent having fibre affinity for the said textile material, and the synthetic or natural nitrogenous fibrous textile material is treated prior to contact with the inert support with an aqueous, thickened solution or emulsion which contains (a) a coacervating agent which is a surface-active substance which forms a hydrophilic colloidal solution and (b) an acid or an acid donor.