Modification of inks during printing to reduce color intensity
AssigneeHewlett-Packard Development Company, L.P.
InventorDavid Tyvoll
Life of this patent
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Abstract
A method of printing with an ink-jet printer. The method includes printing a dye onto a substrate, printing a deactivating agent on the dye, causing the agent to react with either the dye or the substrate, and washing the substrate. The invention is also an ink-jet cartridge having a plurality of reservoirs, some of which contain an ink having a dye and at least one of which contains a deactivating agent.
Claims35
A method of printing with an inkjet printer, comprising:
- printing a colorant onto a predetermined pixel on a substrate;
- printing a deactivating agent on the pixel;
- reacting the deactivating agent with at least one the colorant and the substrate such that at least a portion of the colorant is nonreactive with the substrate;
- and
- washing the substrate.
A co-printing agent for modifying the color intensity of a printed ink, comprising:
- a vehicle;
- and
- a deactivating agent formulated to react with at least one of a colorant of a printed ink and a substrate upon which the printed ink is printed such that at least a portion of the printed ink is nonreactive with the substrate.
An ink cartridge for use with an inkjet printer, comprising:
- a plurality of reservoirs, each of which is in fluidic communication with a pen;
- wherein:
- a portion of the plurality of reservoirs comprises an ink comprising a dye, and at least one of the plurality of reservoirs comprises a deactivating agent formulated to react with at least one of the dye and a substrate upon which the printed ink is printed such that at least a portion of the printed ink is nonreactive with the substrate.
A co-printing agent for inkjet printing, comprising:
- a vehicle;
- and
- a deactivating agent formulated to react with a colorant in an inkjet ink such that the colorant has an increased solubility in water.
Dependencies are inferred from the claim text.