Patent ID: 7478903
Filing Date: 2009-01-20
Classification: C09D

Abstract:
1. An ink set for inkjet printing, the ink set comprising an eight ink set: a cyan ink having a first hue angle h° value between approximately 200 and approximately 260; a magenta ink having a second hue angle h° value between approximately 320 and approximately 10; a yellow ink having a third hue angle h° value between approximately 80 and approximately 120; an ink selected from the group consisting of orange and red inks having a fourth hue h° value between approximately 10 and approximately 80; a green ink having a fifth hue angle h° value between approximately 120 and approximately 200; an ink selected from the group consisting of blue and violet inks having a sixth hue angle h° value between approximately 260 and approximately 320; at least one matte black ink having an average carbon black particle size of from about 70 to about 200 nm and a first lightness L* value; at least one photoblack ink having an average carbon black particle size of from about 20 to about 130 nm and a second lightness L* value; and at least one additional ink selected from the group consisting of blue and violet inks having an independently selected hue angle h° value between approximately 260 and approximately 320, said additional blue or violet ink selected from the group consisting of blue and violet inks having a hue angle h° value different from the blue or violet ink having the sixth hue angle h° value, blue and violet inks having a pigment load different than the blue or violet ink having the sixth hue angle h° value, and blue and violet inks having both a different pigment load and a different hue angle h° value from the blue or violet ink having the sixth hue angle h° value.