Magenta inkjet ink, and process of making and using same
AssigneeE.I Du Pont De Nemouirs and Company
InventorsChristian Jackson, Kevin J. Best
Life of this patent
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Abstract
The present invention pertains to a magenta inkjet ink comprising a combination of pigments which provide favorable hue, chroma and optical density. The invention also pertains to a process of making the magenta ink and an inkjet ink set comprising this magenta ink.
Claims14
A magenta ink-jet ink comprising a vehicle and a pigment colorant dispersed in the vehicle, wherein the pigment colorant comprises a first pigment selected from the group consisting of Pigment Red 146, Pigment Red 184, Pigment Red 269 and combinations thereof, and a second pigment selected from the group consisting of Pigment Red 122, Pigment Violet 23 and combinations thereof.
A process for the production of a magenta inkjet ink comprising the steps of:
- (a) combining a first pigment with a second pigment, wherein said first pigment is a member selected from the group consisting of Pigment Red 146, Pigment Red 184, Pigment Red 269 and combinations thereof, and said second pigment is a member selected from the group consisting of Pigment Red 122, Pigment Violet 23 and combinations thereof;
- (b) combining a dispersant;
- and
- (c) milling to obtain a dispersion.
Dependencies are inferred from the claim text.