Patent ID: 8491113

Claim:
An ink set comprising: an ink composition containing at least water, a pigment, and a resin at least partially coating a surface of the pigment and having a structural unit represented by the following Formula (1) and a structural unit having an ionic group; and a treatment liquid comprising a cationic polymer having reactivity to the pigment at least partially coated with the resin, wherein, in Formula (1), R 1 represents a hydrogen atom, a methyl group or a halogen atom; L 1 represents *—COO—, *—COO—, *—CONR 2 —, *—O—, or a substituted or unsubstituted phenylene group; R 2 represents a hydrogen atom or an alkyl group having 1 to 10 carbon atoms; the symbol “*” in the L 1 represents a bond linked to the main chain; and L 2 represents a single bond or a bivalent linking group having 1 to 30 carbon atoms; and wherein the resin is formed by a phase inversion emulsification method and contains from 10 ppm to 100 ppm of methyl ethyl ketone, based on the mass of the ink composition.