Back to results
US 2003/0146961 A1Published application
Inkjet images having improved visual properties and methods of making same
AssigneeHewlett-Packard Development Company, L.P.
InventorRichard Anderson
Life of this patent
Estimating the term…
Abstract
The present invention is drawn toward inkjet images that are produced using small volume ink drops, and display improved visual properties, such as increased lightfastness and optical density. In one aspect, the ink may include a metalized dye having at least one heterocyclic nitrogen ring and a diazo bond wherein the heterocyclic nitrogen is chelated or complexed to a transition metal, and may be applied to a print media in drop volumes of about 8 pl or less.
Claims20
A method for creating an inkjet image comprising the step of:
- jetting small volume drops of an inkjet ink onto a substrate, said ink having an ink vehicle and an effective amount of a metalized dye having at least one heterocyclic nitrogen ring and a diazo bond wherein the heterocyclic nitrogen is chelated or completed to a transition metal.
An image on a substrate comprising:
- a plurality of small volume inkjet ink drops, said ink having an ink vehicle and a metalized dye having a heterocyclic nitrogen and a diazo bond wherein the heterocyclic nitrogen is chelated or complexed to a transition metal.
Dependencies are inferred from the claim text.