Patent ID: 8642163

Claim:
A light resistant ultraviolet-curable inkjet ink set comprising a yellow ink, a magenta ink and a cyan ink each respectively containing a pigment, a reactive monomer of at least one selected from the group consisting of 1,6-hexanediol diacrylate, neopentylglycol diacrylate, 1,3-butanediol diacrylate, 1,4-butanediol diacrylate and 1,9-nonanedoil diacrylate and/or a reactive oligomer of an aliphatic urethane acrylate composed of hydrocarbon, and a photopolymerization initiator of hydroxyketones and/or acylphosphine oxides, wherein the pigments in the inks of the ink set are one of the combinations of pigments selected from the group consisting of: (1) pigment included in the yellow ink is C.I. pigment yellow 184, pigment included in the magenta ink is C.I. pigment red 101, pigment included in the cyan ink is C.I. pigment blue 15:4; (2) pigment included in the yellow ink is C.I. pigment yellow 42, pigment included in the magenta ink is C.I. pigment red 179, pigment included in the cyan ink is C.I. pigment blue 15:3; (3) pigment included in the yellow ink is C.I. pigment yellow 184, pigment included in the magenta ink is C.I. pigment red 178, pigment included in the cyan ink is C.I. pigment blue 15:4; (4) pigment included in the yellow ink is C.I. pigment yellow 184, pigment included in the magenta ink is C.I. pigment red 149, pigment included in the cyan ink is C.I. pigment blue 15:4.