Black ink jet ink composition
AssigneeRexam Graphics Inc.
InventorsBoris Joseph Katsen, Richard S. Himmelwright, Nate R. Schwartz, Barbara Jones Stewart
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Abstract
Provided is a black ink jet ink which exhibits excellent non-fading properties. The ink jet ink is comprised of water, carbon black, cyan and magenta pigments, a water immiscible organic compound exhibiting a high boiling point, and a water miscible compound. The combination of the water immiscible compound and the water miscible compound provides for excellent anti-crusting properties.
Claims25
An ink jet ink formulation comprised of carbon black, cyan and magenta pigments, water, a water immiscible organic compound exhibiting a high boiling point, and a water miscible compound, with at least a portion of the water immiscible organic compound being absorbed by the cyan and magenta pigments.
The ink jet ink formulation of claim 10, wherein the water miscible compound is comprised of diacetone alcohol, 1,3-propanediol or diethylene glycol.
Dependencies are inferred from the claim text.