Patent ID: 8227539

Claim:
A photocurable ink composition comprising: at least one compound that is selected from a group consisting of N-vinylformamide, a urethane oligomer, ethylene glycol monoallyl ether, diethylene glycol monoallyl ether, trimethylolpropane diallyl ether, trimethylolpropane monoallyl ether, glycerol monoallyl ether, allyl glycidyl ether, pentaerythritol triallyl ether, hydroxybutyl vinyl ether, 2-hydroxyethyl methacrylate, 2-hydroxypropyl acrylate and 4-hydroxybutyl acrylate; a radical photopolymerization initiator; a hindered amine compound; and a metallic pigment, the metallic pigment being aluminum or an aluminum alloy; the metallic pigment being plate-like particles wherein metallic pigment has a light transmittance at 395 nm in the thickest direction of 0.8% or more.