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US 8,475,579 B2Granted
Black ink composition
AssigneeEverlight USA, Inc.
InventorsChien-Ming Chen, Shun-Te Lin, Chien-Wen Lee, Wen-Chin Lin
Life of this patent
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Abstract
A black ink composition is provided. The black ink composition includes a dispersive black colorant; less than 1 wt % of a glycol ether compound based on total weight of the black ink composition; a solvent; and water. The black ink composition of the present invention is free of surfactants and has excellent compatibility with a nozzle, and thus provides good smoothness in printing and high-quality image.
Claims7
A black ink composition, comprising:
- a dispersive black colorant;
- 0.1 to 1 wt % of a glycol ether compound based on total weight of the black ink composition;
- a solvent;
- and
- water, wherein the black ink composition has no surfactant.
2 more elements
Dependencies are inferred from the claim text.