Patent ID: 8461228

Claim:
An ink composition comprising a polymerizable compound represented by following Formula (1), a polymerization initiator and water: X A) n Formula (1) wherein, in Formula (1), X represents a divalent or trivalent nitrogen-containing linking group represented by any one of following Formulae (X1) to (X3), A represents a polymerizable functional group having an amino group, and n represents 2 or 3: wherein, in Formulae (X1) to (X3), Z independently represents an alkylene group having 2 or 3 carbon atoms, or a divalent linking group consisting of one or two alkyleneoxy groups each having 2 or 3 carbon atoms and an alkylene group having 2 or 3 carbon atoms; and R 1 represents a hydrogen atom or an alkyl group having 1 to 4 carbon atoms.