Electrostatographic toner containing cyan pigment
First Claim
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1. A dry, particulate electrostatographic toner composition comprising a binder polymer having mixed therewith a cyan pigment having a structure selected from the group consisting of:
- ##STR4## wherein;
R is selected from the group consisting of OH and NH2 ;
R1 is selected from the group consisting of hydrogen and C1 to C6 alkyl;
R2 is selected from the group consisting of hydrogen, an alkyl group having from 1 to about 6 carbon atoms, acyl, aryl, aralkyl, alkylsulfonyl, amino, alkoxy, halogen, morpholino, phenylsulfamoyl sulfonamido, sulfamoyl, carboxy and sulfo and hydrolyzable precursors thereof;
R3 is an electron withdrawing group;
Y equals the number of atoms necessary to form an indole ring or a quinoline ring containing either hydrogen or a COOH group in the 2-position;
L is a ligand; and
M is a divalent or trivalent coordinate metal ion;
said toner having an average particle size within the range of from about 0.1 to about 100 microns.
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Abstract
Electrostatographic toner materials containing a cyan pigment which is a metal coordination complex of a substituted 6-heterocycloazo-3-pyridinol compound are disclosed. These pigments are formulated with fusible polymeric binders to provide a toner which exhibits excellent triboelectric properties and improved cyan color and hue when utilized in the electrostatographic process to produce colored electrophotographic images.
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Citations
18 Claims
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1. A dry, particulate electrostatographic toner composition comprising a binder polymer having mixed therewith a cyan pigment having a structure selected from the group consisting of:
- ##STR4## wherein;
R is selected from the group consisting of OH and NH2 ;R1 is selected from the group consisting of hydrogen and C1 to C6 alkyl; R2 is selected from the group consisting of hydrogen, an alkyl group having from 1 to about 6 carbon atoms, acyl, aryl, aralkyl, alkylsulfonyl, amino, alkoxy, halogen, morpholino, phenylsulfamoyl sulfonamido, sulfamoyl, carboxy and sulfo and hydrolyzable precursors thereof; R3 is an electron withdrawing group; Y equals the number of atoms necessary to form an indole ring or a quinoline ring containing either hydrogen or a COOH group in the 2-position; L is a ligand; and M is a divalent or trivalent coordinate metal ion; said toner having an average particle size within the range of from about 0.1 to about 100 microns. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
- ##STR4## wherein;
Specification