Patent ID: 8232329

Claim:
An inkjet ink comprising at least a pigment, water, a water-soluble organic solvent having an α value of not more than 65, and a dispersant, wherein the dispersant is a copolymer having a unit A represented by general formula (a) shown below and a unit B represented by general formula (b) shown below, and a mass ratio between the water-soluble organic solvent and the water satisfies (water-soluble organic solvent)/water =5/5 to 8/2, wherein R 1 represents a hydrogen atom or a lower alkyl group, and m represents an integer of 1 to 3, wherein R 2 and R 3 each represents a hydrogen atom or a lower alkyl group, R 2 and R 3 may be the same or different, and n represents an integer of 1 to 250.