Ink composition, ink set, and image forming method

摘要

An ink composition is disclosed which includes a pigment, self-dispersing resin particles including a hydrophilic constituent unit and a hydrophobic constituent unit, at least two nonionic surfactants including (a) a nonionic surfactant having an HLB of from 15 to 19 and (b) a nonionic surfactant having an HLB of from 10 to less than 15, a water-soluble organic solvent, and water. An ink set and an image forming method are also disclosed.