Ink jet ink set

Claim 2

A color ink jet ink set for color printing comprising: (a) a magenta ink comprising a carrier and a water-soluble, transition metal complex of an 8-heterocyclylazo-5-hydroxyquinoline dye; (b) a yellow ink comprising a carrier and a water-soluble yellow dye; (c) a cyan ink comprising a carrier and a water-soluble cyan dye; and (d) an orange and/or green and/or violet ink comprising a carrier and a water-soluble orange and/or green and/or violet dye, said water-soluble orange dye having a hue angle between about 58 and about 83; said water-soluble green dye having a hue angle between about 128 and about 189; and said water-soluble violet dye having a hue angle between about 235 and about 315.

Claim 3

The ink jet ink set of claim 1 wherein said water-soluble, transition metal complex of an 8-heterocyclylazo-5-hydroxyquinoline dye is represented by the following structure: wherein: M represents a polyvalent transition metal ion; L represents a neutral or anionic ligand; each X, Y and Z independently represents a substituted or unsubstituted alkyl group of 1 to about 6 carbon atoms, a substituted or unsubstituted aryl group of about 6 to about 10 carbon atoms, a substituted or unsubstituted hetaryl group of about 5 to about 10 atoms, halogen, cyano, a substituted or unsubstituted alkoxy group of 1 to about 6 carbon atoms, hydroxy, a polyoxyalkylene group of 2 to about 20 alkylene oxide residues, carboxy, sulfo, phospho, carbamoyl, a substituted or unsubstituted alkyl-, aralkyl-, aryl-, diaryl- or dialkyl carbamoyl group of 1 to about 20 carbon atoms, sulfamoyl, a substituted or unsubstituted alkyl-, aralkyl-, aryl-, diaryl- or dialkyl-sulfamoyl group of 1 to about 20 carbon atoms, acylamino, sulfonylamino, amino, a substituted or unsubstituted alkyl-, aralkyl-, aryl-, diaryl- or dialkyl-amino group of 1 to about 20 carbon atoms or a quaternary ammonium or phosphonium group; Q represents the atoms necessary to complete a 5- or 6-membered heterocyclic ring; n represents 2 or 3; m represents an integer from 1-3; each p and r independently represents integers from 0-3; q represents 0, 1 or 2; two or more of L may be joined together to form a bi- or tridentate ligand or may represent another polydentate dye molecule; one or more of X, Y and Z, together with the carbon to which they are attached, may independently represent a ring nitrogen; and any two of X, Y or Z may be joined together to form a 5-7 membered saturated or unsaturated ring; with the proviso that at least one of X, Y and Z is a water solubilizing group or contains such a group as a substituent.

Claim 4

The inkjet ink set of claim 2 wherein q is 0, Q represents the atoms necessary to complete a pyridine ring, r is 0, M is Ni, n is 2, m is 1, p is 2, X represents 2-methyl and 3-carboxy and L represents a second, identical 8-heterocyclylazo-5-hydroxyquinoline dye residue.

Claim 5

The inkjet ink set of claim 1 wherein said cyan dye is a copper phthalocyanine dye or Acid Blue 9.

Claim 6

The inkjet ink set of claim 4 wherein said copper phthalocyanine dye is Direct Blue 199 or Direct Blue 86.

Claim 7

The ink jet ink set of claim 1 wherein said yellow dye is Direct Yellow 107, Direct Yellow 132 or Direct Yellow 86.

Claim 8

The inkjet ink set of claim 1 further comprising as an additional black ink comprising a carrier and a water-soluble black dye.

Claim 9

The ink jet ink set of claim 7 wherein said water-soluble black dye is Reactive Black 31, Direct Black 19, Direct Black 168 or Solubilized Sulfur Black 1.

Claim 10

The ink jet ink set of claim 1 wherein said water-soluble orange dye is Reactive Orange 5, Acid Orange 10 or Acid Orange 12.

Claim 11

The ink jet ink set of claim 1 wherein said water-soluble green dye is Reactive Green 12, Acid Green 25, Acid Green 5 or Acid Green 3.

Claim 12

The ink jet ink set of claim 1 wherein said water-soluble violet dye is Acid Violet 17.

Claim 13

The inkjet ink set of claim 1 wherein each ink contains a humectant.

Claim 14

The inkjet ink set of claim 1 wherein each ink contains a surfactant.

Claim 15

The inkjet ink set of claim 1 wherein each said carrier is water.

Claim 16

The ink jet ink set of claim 1 wherein each ink contains 0.2 to 10.0 weight percent of dye.

Claim 17

The ink jet ink set of claim 1 wherein each ink contains from about 5 to about 60 weight percent of humectant.