Ink jet ink set

Claim 2

A color ink jet ink set for color printing comprising: (a) a yellow ink comprising a carrier and Direct Yellow 107, Direct Yellow 132 or Direct Yellow 86; (b) a magenta ink comprising a carrier and a water soluble, transition metal complex of an 8-heterocyclylazo-5-hydroxyquinoline dye; and (c) a cyan ink comprising a carrier and a sulfonated copper phthalocyanine dye.

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 carbon 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 ink jet 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 ink jet ink set of claim 1 wherein said copper phthalocyanine dye is Direct Blue 199 or Direct Blue 86.

Claim 6

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

Claim 7

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

Claim 8

The ink jet ink set of claim 1 further comprising as an additional ink a black ink comprising a carrier and Reactive Black 31, Direct Black 19, Direct Black 168 or Solubilized Sulfur Black 1.

Claim 9

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

Claim 10

The ink jet ink set of claim 1 wherein each ink contains 0.05 to 20 weight percent of dye.

Claim 11

The ink jet ink set of claim 1 wherein each ink contains from about 5 to about 70 weight percent of humectant.

Claim 12

An ink jet printing method for printing color images, comprising the steps of: providing an ink jet printer that is responsive to digital data signals; loading said printer with ink receptive substrates; loading said printer with an ink jet ink set for color printing comprising: (a) a yellow ink comprising a carrier and Direct Yellow 107, Direct Yellow 132 or Direct Yellow 86; (b) a magenta ink comprising a carrier and a water soluble, transition metal complex of an 8-heterocyclylazo-5-hydroxyquinoline dye; and (c) a cyan ink comprising a carrier and a sulfonated copper phthalocyanine dye; and printing on said ink receptive substrates in response to said digital data signals.

Claim 13

An ink jet printing method for printing color images, comprising the steps of: providing an ink jet printer that is responsive to digital data signals; loading said printer with ink receptive substrates; loading said printer with an ink jet ink set for color printing comprising: (a) a yellow ink comprising a carrier and Direct Yellow 107, Direct Yellow 132 or Direct Yellow 86; (b) a magenta ink comprising a carrier and a water soluble, transition metal complex of an 8-heterocyclylazo-5-hydroxyquinoline dye; and (c) a cyan ink comprising a carrier and a sulfonated copper phthalocyanine dye; and printing on said ink receptive substrates in response to said digital data signals.

Claim 14

The method of claim 11 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 carbon 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 15

The method of claim 12 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 16

The method of claim 11 wherein said copper phthalocyanine dye is Direct Blue 199 or Direct Blue 86.

Claim 17

The method of claim 11 wherein each ink contains a humectant.

Claim 18

The method of claim 11 wherein each ink contains a surfactant.

Claim 19

The method of claim 11 wherein said ink jet ink set further comprising as an additional ink a black ink comprising a carrier and Reactive Black 31, Direct Black 19, Direct Black 168 or Solubilized Sulfur Black 1.

Claim 20

The method of claim 11 wherein each said carrier is water.

Claim 21

The method of claim 11 wherein each ink contains 0.05 to 20 weight percent of dye.

Claim 22

The method of claim 11 wherein each ink contains from about 5 to about 70 weight percent of humectant.