Rotogravure or flexographic printing ink composition containing an antiwear agent

摘要: Disclosed is a rotogravure or flexographic printing ink composition, comprising (A) an pigment dispersed in fluid vehicle, said vehicle resin incorporated into aqueous non-aqueous solvent mixture of such solvents; and (B) wear reducing amount metal dihydrocarbyl dithiophosphate the formula ##STR1## wherein R 1 2 are each independently hydrocarbyl groups containing from 3 to about 30 carbon atoms, M integer equal valence M.