Ink for inkjet, inkjet recording method, inkjet recorder and ink recorded matter
AssigneeRicoh Company, Ltd.
InventorsHidetoshi FUJII, Hiroshi GOTOU
Life of this patent
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Abstract
An ink for inkjet includes water, a hydrosoluble organic material and a hydrodispersible colorant. The ink satisfies the following requirements (A) to (C): (A) the ink includes the hydrosoluble organic material in an amount of from 35 to 60% by weight; (B) the hydrosoluble organic material is 3-methoxy-1-butanol; and (C) the hydrodispersible colorant is a modified pigment modified with a geminal bisphosphonic acid group or a geminal bisphosphonic acid salt group.
Claims9
An ink for inkjet, comprising water, a hydrosoluble organic material and a hydrodispersible colorant, wherein the ink satisfies the following requirements (A) to (C):
- (A) the ink comprises the hydrosoluble organic material in an amount of from 35 to 60% by weight;
- (B) the hydrosoluble organic material is 3-methoxy-1-butanol;
- and
- (C) the hydrodispersible colorant is a modified pigment modified with a geminal bisphosphonic acid group or a geminal bisphosphonic acid salt group.
Dependencies are inferred from the claim text.