AZO COMPOUND, AZO PIGMENT, AND DISPERSION, COLORED COMPOSITION, INKJET RECORDING INK, INKJET RECORDING INK TANK, INKJET RECORDING METHOD, AND RECORDED MATERIAL EACH CONTAINING THE AZO COMPOUND OR THE AZO PIGMENT

摘要

PROBLEM TO BE SOLVED: To provide an azo pigment having excellent color-related properties such as coloring ability and hue and excellent durability such as light resistance and ozone resistance, and to provide a pigment dispersion, a colored composition, inkjet recording ink each containing the azo pigment.

SOLUTION: Disclosed is an azo pigment represented by general formula (1), a tautomer thereof, or a salt or hydrate of the azo pigment or the tautomer. In the formula, R1, R2, R3, Y, Z and G each independently represents a hydrogen atom or a substituent; and n represents an integer of 2 to 4, provided that the formula represents a dimer formed via R1, R2, R3, Y, Z or G when n is 2, the formula represents a trimer formed via R1, R2, R3, Y, Z or G when n is 3, and the formula represents a tetramer formed via R1, R2, R3, Y, Z or G when n is 4.

COPYRIGHT: (C)2010,JPO&INPIT