MONOAZO LAKE PIGMENT COMPOSITION AND ITS USE

摘要

PURPOSE:To obtain the subject composition having excellent non-agglomeration property and fluidity and giving a printing ink having good printability by mixing and coupling a specific diazo component with naphthols, etc., and laking the product e.g. simultaneously with the coupling reaction. CONSTITUTION:The objective composition is produced e.g. by mixing and coupling (A) a diazo component derived from an aromatic amine having soluble group and containing 0.1-30mol% of a rosin-modified aromatic amine with (B) naphthols or oxynaphthoic acid and laking the product simultaneously with or after the coupling reaction.