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US 7,018,457 B2Granted
Azo metal-complexed dyes, ink jet ink compositions and ink jet printing methods
AssigneePolaroid Corporation
InventorsMichael J. Berger, Michael P. Filosa, Stephen Stroud
Life of this patent
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Abstract
There are described metal-complexed azo dyes which are useful in ink jet printing applications. Also described are ink jet ink compositions including a dye of the invention as well as ink jet printing methods and apparatus.
Claims13
A printing ink composition comprising a metal-complexed dye represented by the formula
- or a salt thereof
- wherein:
- M is copper;
- R1 and R2 each independently is a solubilizing group;
- R3 is selected from the group consisting of:
- (1) alkyl;
- (2) cyano;
- (3) COOH;
- and
- (4) CONH2;
- X1 and X2 each independently is a counterion;
- Z is a ligand;
- n is an integer of from 1 to 3;
- m is an integer of from 1 to 3;
- and
- p is an integer of from 1 to 3;
- dissolved or dispersed in a liquid carrier.
14 more elements
A printing ink composition comprising a metal-complexed dye represented by the formula
- wherein:
- M is copper;
- R1 and R2 each independently is a solubilizing group;
- R3 is selected from the group consisting of:
- (1) alkyl;
- (2) cyano;
- (3) COOH;
- and
- (4) CONH2;
- X1 and X2 each independently is a counterion;
- n is an integer of from 1 to 3;
- and
- m is an integer of from 1 to 3;
- dissolved or dispersed in a liquid carrier.
11 more elements
A metal-complexed dye represented by the formula
- where
- M is copper;
- R1 and R2 each independently is a solubilizing group;
- R5 is alkyl cyano, COOH or CONH2;
- X1 and X2 each independently is a counterion;
- Z is a ligand;
- n is an integer of from 1 to 3;
- m is an integer of from 1 to 3;
- and
- p is an integer of from 1 to 3.
7 more elements
Dependencies are inferred from the claim text.