Patent ID: 8011775
Filing Date: 2011-09-06
Classification: C09D

Abstract:
1. An ink set, comprising: a red ink including an effective amount of a red pigment having a predetermined red/green lambda cutoff; a magenta ink including a water-based vehicle and an effective amount of a magenta pigment i) having a predetermined red/green lambda cutoff that is substantially similar to the predetermined lambda cutoff of the red pigment and ii) reflecting at least about 14% of blue light at a wavelength of about 470 nm when measured at a density at which the magenta ink provides a maximum magenta chroma; a yellow ink including an effective amount of pigment yellow 155; a green ink including an effective amount of pigment green 36; a cyan ink including an effective amount of pigment blue 15:3; a blue ink including an effective amount of pigment violet 23; a matte black ink; a photoblack ink; a medium gray ink; a light gray ink; a dark magenta ink including a mixture of quinacridone pigments; and a gloss enhancer; wherein the red pigment is pigment red 149, wherein the magenta pigment is the mixture of quinacridone pigments, and wherein the magenta ink is a light magenta ink.