Patent ID: 10538670

Abstract:
Provided are a pigment dispersion liquid including a pigment, a polymer dispersant, and water; and an inkjet ink containing the pigment dispersion liquid. The pigment contains a compound represented by General Formula (1) described in the specification, a tautomer thereof, or a salt of the compound or the tautomer. The polymer dispersant contains a polymer compound which has a repeating unit represented General Formula (2-1) and a repeating unit represented General Formula (2-2) described in the specification, and having a structure represented by General Formula (3) introduced into at least one terminal of a main chain: in General Formula (3), L represents a linking group; R4 represents a substituted or unsubstituted alkyl group, a substituted or unsubstituted aryl group, or a substituted or unsubstituted heterocyclic group; and the symbol * represents a linking bond.