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US 6,440,203 B2Granted
Ink composition capable of realizing images possessing excellent color development and fixation
AssigneeSeiko Epson Corporation
InventorShinichi Kato
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Abstract
An ink composition is provided which, when printed on recording media, can exhibit excellent color development and fixation, can be stably ejected, and can realize good images. This ink composition comprises a first colorant, a second colorant, a penetrating agent, water, and a water-soluble organic solvent. The first colorant is a pigment which is dispersible and/or dissolvable in water without any dispersant, and the second colorant is a pigment dispersion comprising a pigment and a dispersant for dispersing the pigment.
Claims20
An ink composition comprising:
- a first colorant;
- a second colorant;
- a penetrating agent;
- water;
- and a water-soluble organic solvent,
- said first colorant being a pigment which is dispersible and/or dissolvable in water without any dispersant, said second colorant being a pigment dispersion comprising a pigment and a dispersant for dispersing the pigment.
3 more elements
Dependencies are inferred from the claim text.