MONOAZO LAKE PIGMENT COMPOSITION, PRODUCTION OF THE SAME AND PRINTING INK COMPOSITION

摘要

PROBLEM TO BE SOLVED: To provide soluble monoazo lake pigment producible of inks of transparent and vivid in hue when used in various inks, and inks low in viscosity having a vivid hue excellent in gross especially used in liquid type inks, a manufacturing method of the same and printing inks. SOLUTION: This monoazo lake pigment composition consists of (a) a monoazo lake pigment obtained by coupling and chelating a diazo component of an aromatic amine having a soluble group excluding the groups described in the following and at least a kind of coupler selected fromβ-oxynaphthoic acid, BON-amide and naphthol AS, and (b) a monoazo lake pigment obtained by coupling and chelating a diazo compound of the orthanilic acid and at least a coupler described above.