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AssigneeFUJIFILM Corporation
InventorsMasahiro Higashi, Yoshihiro Jimbo, Keiichi Tateishi
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An azo pigment selected from the group consisting of: an azo pigment represented by the following formula (1), which has: a characteristic X-ray diffraction peak at Bragg angles (2θ±0.2°) of 6.9°, 21.5°, and 27.3° in CuKα characteristic X-ray diffraction, a peak height at 11.9° of 0.6 or less relative to a peak height at 10.9° or a tautomer thereof, or a salt, hydrate, or solvate of the azo pigment or tautomer thereof; and an azo pigment represented by the following formula (1), which has: a characteristic X-ray diffraction peak at Bragg angles (2θ±0.2°) of 6.9°, 25.8°, and 27.1° in CuKα characteristic X-ray diffraction, a peak height at 10.9° of 0.2 or less relative to a peak height at 11.9° or a tautomer thereof, or a salt, hydrate, or solvate of the azo pigment or tautomer thereof.
An azo pigment consisting of:
A process for producing an a α crystal form azo pigment represented by the following formula (1) having a characteristic X-ray diffraction peak at Bragg angles(2θ±0.2°) of 6.9°,21.5°, and 27.3° in CuKα characteristic X-ray diffraction and a peak height at 11.9° of 0.6 or less relative to a peak height at 10.9° or a tautomer thereof, comprising:
A process for producing β crystal form azo pigment represented by the following formula (1) having a characteristic X-ray diffraction peak at Bragg angles (2θ±0.2°) of 6.9°, 25.8°, and 27.1° in CuKα characteristic X-ray diffraction and a peak height at 10.9° of 0.2° or less relative to a peak height at 11.9° or a tautomer thereof, comprising:
Dependencies are inferred from the claim text.