Dye set for improved ink-jet print quality
AssigneeHewlett-Packard Company
InventorsPeter C. Morris, David H. Donovan, Gregg A. Lane, Larrie A. Deardurff
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Abstract
In accordance with the invention a set of dyes suitable for use in ink-jet inks and method for formulating the same are provided. A specific dye set for formulating the yellow, cyan, magenta, and optionally black inks is disclosed, comprising Direct Yellow 132, Direct Blue 199, Magenta 377, and optionally Pacified Reactive Black 31 dyes, respectively. This dye set provides ink-jet prints able to match printed color standards such as specification for web offset publications (SWOP) and Euroweb, with excellent lightfade and pen reliability performance.
Claims27
An ink set for ink-jet printing, comprising:
- a yellow ink comprising Direct Yellow 132;
- a magenta ink comprising Magenta 377;
- and
- a cyan ink comprising Direct Blue 199.
A method for ink-jet printing, comprising:
- providing a yellow ink comprising Direct Yellow 132;
- providing a magenta ink comprising Magenta 377;
- providing a cyan ink comprising Direct Blue 199;
- and
- printing said inks on a printing medium by means of an ink-jet pen.
Dependencies are inferred from the claim text.