Ink composition and method for inkjet recording using the same
AssigneeSeiko Epson Corporation
InventorsMasayuki Momose, Hiroshi Ito
Life of this patent
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Abstract
An ink composition containing a surface-modified pigment is provided which can realize anti-clogging properties and images having high print density. The ink composition comprises at least a colorant, glycerin, a glycol compound, and water, the colorant being a surface-modified pigment dispersible and/or dissolvable in water without any dispersant, the glycerin being contained in an amount of 3 to 30% by weight based on the ink composition, the glycol compound being contained in an amount of 1 to 20% by weight based on the ink composition and having a molecular weight of 130 to 3,000.
Claims19
An ink composition comprising a colorant, glycerin, a glycol compound, and water,
- the colorant being a surface-modified pigment dispersible and/or dissolvable in water without any dispersant,
- the glycerin being present in an amount of 3 to 30% by weight based on the ink composition,
- the glycol compound being present in an amount of 1 to 20% by weight based on the ink composition and having a molecular weight of 170 to 2,500.
Dependencies are inferred from the claim text.