| abstract |
A pigment yellow 74 obtainable by coupling a couplerncomponent comprising 2-methoxyacetoacetoanilide and annacetoacetoanilide derivative of formula (1):n n wherein each X may be the same or different and isnCONR 1 R 2 , SO 2 NR 1 R 2 , NHCOR 1 , CONH (CH 2 ) k NR 1 R 2 or SO 2 NH (CH 2 ) k NR 1 R 2 n(in which each of R 1 and R 2 is independently a hydrogen atomnor an alkyl group, or R 1 and R 2 together form a cyclic structure,nand k is an integer of 1 to 4), m is 1 or 2, each Y may benthe same or different and is R 3 , OR 3 (in which R 3 is a hydrogennatom or an alkyl group), COOH or SO 3 H, and n is an integer ofn0 to 2, nin an amount of 0.1 to 10 mol %, based on then2-methoxyacetoacetoanilide, and a diazo component obtainablenby diazotizing 2-methoxy-4-nitroaniline; nand a printing ink composition comprising the above pigmentnyellow 74. |