Patent ID: 8378002

Claim:
An aqueous ink composition comprising at least: a sensitizing dye represented by the following Formula (i); an ethylenically unsaturated bond-containing water-soluble polymerizable compound; a polymerization initiator; and water: wherein, in Formula (i), X represents O, S or NR; n represents an integer of 0 or 1; R represents a hydrogen atom, an alkyl group or an acyl group; each of R 1 , R 2 , R 3 , R 4 , R 5 , R 6 , R 7 and R 8 independently represents a hydrogen atom or a monovalent substituent, provided that any neighboring two of R 1 , R 2 , R 3 and R 4 may be bonded to each other to form a ring, and R 5 and R 7 or R 8 , or R 6 and R 7 or R 8 , may be bonded to each other to form an aliphatic ring but do not form an aromatic ring.