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US 2002/0165293 A1Published application
Addition of metal ions to improve lightfastness of inkjet inks
AssigneeHewlett-Packard Development Company, L.P.
InventorsMark L. Choy, Richard Anderson
Life of this patent
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Abstract
An additive for a fixer for inkjet printing. A metal salt is added to the fixer formulation to increase lightfastness of the printed ink.
Claims8
An additive for a fixer formulation for inkjet printing, comprising:
- a metal salt,
- wherein the fixer formulation comprises a positively charged polymer.
Dependencies are inferred from the claim text.