Patent ID: 11926741
Assignee: DAINICHISEIKA COLOR & CHEMICALS MFG. CO., LTD.
Field: Basic materials chemistry (Chemistry)
Classification: CPC C | IPC C

Claim 0:
1. A pigment dispersion liquid comprising:
a quinacridone solid solution pigment of unsubstituted quinacridone and a 2,9-dialkylquinacridone;
a pigment dispersant; and
water, wherein
the quinacridone solid solution pigment has diffraction peaks where values of 2θ in)(2θ±0.2°) expressed using a Bragg angle (θ) are 27.4°, 13.8°, and 5.9° in powder X-ray diffraction, and
an intensity ratio of the diffraction peak at the 13.8° is 76 and an intensity ratio thereof at the 27.4° is 71, each relative to an intensity of the diffraction peak at the 5.9° as 100.