The effect of the modifier structure and content, as well as the dye structure, on the absorption on montmorillonite nanoparticles has been studied. The discovered dependencies have been used for obtaining nanopigments with high content of the coloring component based on cationic, direct, acid, active or disperse dyes. The effect of the coloring component on photopolymerization of the oligomer/monomer binder is estimated and the optimum compositions of ultraviolet (UV) paints with nanopigments are determined. It has been shown that developed UV paints possess higher light sensitivity compared with conventional organic pigments, and allow a dyed material with increased resistance to rubbing and tensile strength to be obtaining.