Pigment yellow 74 and printing ink composition

摘要

A pigment yellow 74 obtainable by coupling a coupler component comprising 2-methoxyacetoacetoanilide and an acetoacetoanilide derivative of formula (1): wherein each X may be the same or different and is CONR1R2, SO2NR1R2, NHCOR1, CONH (CH2) kNR1R2 or SO2NH (CH2) kNR1R2 (in which each of R1 and R2 is independently a hydrogen atom or an alkyl group, or R1 and R2 together form a cyclic structure, and k is an integer of 1 to 4), m is 1 or 2, each Y may be the same or different and is R3, OR3 (in which R3 is a hydrogen atom or an alkyl group), COOH or SO3H, and n is an integer of 0 to 2, in an amount of 0.1 to 10 mol %, based on the 2-methoxyacetoacetoanilide, and a diazo component obtainable by diazotizing 2-methoxy-4-nitroaniline; and a printing ink composition comprising the above pigment yellow 74.