Patent ID: 8362100

Claim:
An active energy ray-curable ink comprising a photocleavage type photopolymerization initiator (A) comprising an α-aminoalkylphenone compound (A1) having a molar absorption coefficient as measured at a wavelength of 365 nm of 100 (l/mol-cm) or more and less than 100,000 (l/mol·cm) and/or an acylphosphine oxide compound (A2) having a molar absorption coefficient as measured at a wavelength of 365 nm of 100 (l/mol·cm) or more and less than 100,000 (l/mol·cm); a hydrogen abstraction type photopolymerization initiator (B) comprising 4,4′-dialkylaminobenzophenone having a molar absorption coefficient as measured at a wavelength of 365 nm of 10,000 (l/mol·cm) or more and less than 1,000,000 (l/mol·cm); and a tertiary amine compound (C) having a molar absorption coefficient as measured at a wavelength of 365 nm of 1 (l/mol·cm) or less.