
A composition readily dispersible in an organic solvent and containing an azoacylacetarylamide and an azo compound of the formula wherein X is selected from the group consisting of phenyl, diphenyl and quinoline radicals and is directly linked to the azo group through a nuclear carbon atom of said radicals, said radicals optionally carrying a substituent selected from the group consisting of chlorine, nitro, methyl and hydroxy, Y is methyl, Z is phenyl optionally substituted with a member select...











