AZO PIGMENT COMPOSITION, PRODUCTION PROCESS OF AZO PIGMENT COMPOSITION, DISPERSION CONTAINING AZO PIGMENT COMPOSITION, COLORING COMPOSITION AND INK FOR INKJET RECORDING

摘要

To provide an azo pigment composition exhibiting very good hue and light fastness and having excellent tinctorial strength (color density) and preferably further provide an azo pigment composition containing an azo pigment having characteristic X-ray diffraction peaks at different positions or a tautomer thereof. An azo pigment composition comprising at least one kind of an azo pigment represented by formula (1) having characteristic X-ray diffraction peaks at Bragg angles (28~0.2°) of 7.6°, 25.6° and 27.7° in the CuK.alpha. characteristic X-ray diffraction or a tautomer thereof: Formula (1): (see formula 1)