Inkjet composition, ink cartridge comprising the same, and inkjet recording apparatus comprising the same
First Claim
1. An ink composition comprising a colorant, a cyclic amide compound, a cyclic dicarbonyl compound, and water.
2 Assignments
0 Petitions
Accused Products
Abstract
An ink composition including a colorant, a cyclic amide compound, a cyclic dicarbonyl compound, and water, an ink cartridge including the same, and an inkjet recording apparatus including the same. The ink composition maintains high solubility and stability of a colorant, even when used in small amounts, thereby enhancing not only a storage stability but also a fusing property of the ink composition on a print medium, and thus reinforces a rubbing resistance of the ink composition on the print medium. The ink composition is easily dried on the print medium, and thus bleeding between colors is minimized, thereby improving printed image quality because little or solvent having a high boiling point is used in the ink composition.
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Citations
33 Claims
- 1. An ink composition comprising a colorant, a cyclic amide compound, a cyclic dicarbonyl compound, and water.
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17. Ink composition, comprising:
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at least one colorant; at least one cyclic amide compound; at least one cyclic dicarbonyl compound; and a liquid vehicle. - View Dependent Claims (18, 19, 20, 21, 22, 23, 24, 25, 27, 28, 29, 30, 31, 32)
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26. A method of making an ink composition, the method comprising:
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mixing a colorant, a cyclic amide compound, and a cyclic dicarbonyl compound to form a mixture; adding a liquid vehicle to the mixture; stirring the mixture containing the liquid vehicle to form a homogenous mixture; and filtering the homogenous mixture to form the ink composition.
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33. An ink composition comprising:
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a colorant; at least one cyclic amide; at least one cyclic dicarbonyl compound to secure a hygroscopicity of the colorant; and a liquid vehicle, wherein the at least one cyclic amide compound and the at least one cyclic dicarbonyl compound provide solubility and storage stability for the colorant.
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Specification