Ink composition, image forming method, and print material

Abstract

Provided is an ink composition capable of forming images having excellent water resistance, excellent solvent resistance and excellent adhesiveness to base materials, the ink composition including (Component A) a polymer containing a repeating unit (a1) having at least one of an aromatic ketone structure and an aliphatic 1,2-diketone structure, a repeating unit (a2) having at least one of a tertiary amine structure and a thiol structure, and a repeating unit (a3) having an ethylenically unsaturated double bond, and (Component B) a coloring material.

Dependencies are inferred from the claim text.