Patent ID: 8669298

Claim:
A green radiation-curable lightfast gel ink, comprising: at least one curable monomer, at least one organic gellant, at least one photoinitiator and a green colorant selected from the group consisting of Hostaperm green, Phthalo Green 5319P, Phthalo Green 5319D, Phthalo Green 5319S, Winsor Green, Phthalocyanine Green G, Copper Phthalocyanine Green, C.I. Pigment Green 42, Non-flocculating Green G, Polychloro copper phthalocyanine, C.I. 74260 and combinations thereof, wherein the ink exhibits a reflectance on a substrate at a loading of from about 2 mg/inch 2 to about 7 mg/inch 2 that ranges from 50% to about 60% at a wavelength of 500 nm and that ranges from 0% to about 10% at a wavelength of about 600 nm, and wherein the radiation curable ink matches PANTONE® green in color within a ΔE 2000 of about 4 or less.