Color ink-jet inks having improved decap without affecting color-to-black bleed control
AssigneeHewlett-Packard Development Company, L.P.
InventorALexey S. Kabalnov
Life of this patent
Estimating the term…
Abstract
The present invention relates to an ink-jet ink comprising an improved black-to-color bleed control agent in color inks having better decap properties. The improved bleed control agent comprises a multivalent salt of a perchlorate anion. A method of using the ink-jet ink is also provided. The method comprises formulating the color ink-jet ink with the improved bleed control agent and applying the color ink-jet ink adjacent to a black ink-jet ink on a paper substrate. A method of improving decap of an ink set without affecting color-to-black bleed control is also provided.
Claims21
An ink-jet ink having improved decap time and color-to-black bleed control, said ink comprising:
- at least one component selected from the group consisting of a cosolvent, a surfactant, and a buffer;
- at least one dye;
- and
- an improved decap agent comprising a multivalent salt of a perchlorate anion.
A method of printing a substrate with an ink-jet ink comprising:
- formulating a color ink-jet ink comprising a cosolvent, a surfactant, a buffer, a dye, and an improved decap agent, wherein said improved decap agent comprises a multivalent salt of a perchlorate anion;
- applying said color ink-jet ink on a paper substrate;
- and
- applying a black ink-jet ink adjacent to said color ink-jet ink.
A method of improving decap without affecting color-to-black bleed control of a color ink-jet ink, said method comprising:
- formulating a color ink-jet ink comprising a cosolvent, a surfactant, a buffer, at least one dye, and an improved decap agent, wherein said improved decap agent comprises a multivalent salt of a perchlorate anion.
Dependencies are inferred from the claim text.