Ink set for inkjet printing, inkjet printer including the ink set, and method of inkjet printing using the ink set

An inkjet printer, comprising:

• a first ink chamber including a cyan ink having a first hue angle h° value between approximately 200 and approximately 260;
• a second ink chamber including a magenta ink having a second hue angle h° value between approximately 320 and approximately 10;
• a third ink chamber including a yellow ink having a third hue angle h° value between approximately 80 and approximately 120;
• a fourth ink chamber including at least one ink selected from an orange ink and a red ink having a fourth hue angle h° value between approximately 10 and approximately 80;
• a fifth ink chamber including a green ink having a fifth angle hue h° value between approximately 120 and approximately 200;
• a sixth ink chamber including an ink selected from the group consisting of a blue ink and a violet ink having a sixth hue 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.

A method of inkjet printing on a print media, the method comprising:

• providing an ink set for inkjet printing, the ink set comprising:
• 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 angle 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 a blue or violet ink having an independently selected hue angle h° value between approximately 260 and approximately 320;
• and
• ejecting drops of at least one of the inks onto the print media.