Pigment composition, filter composition and manufacturing method of pigment composition

Abstract

The pigment composition of the present invention comprises isoindoline pigment (1) and quinophthalone sulfonic acid derivative (2), and has a diffraction peak at a position where the Bragg angle θ is (27.1°±0.5°) / 2 in a powder X-ray diffraction pattern using CuKα rays as the X-ray source. The crystallite diameter calculated by the Scherrer formula using the above-mentioned Bragg angle θ and the full width at half maximum (FWHM) B of the above-mentioned diffraction peak is less than 15.5 nm. none