Ink for inkjet, inkjet recording method, inkjet recorder and ink recorded matter
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.
1. An ink for inkjet, comprising water, a hydrosoluble organic material and a hydrodispersible colorant, wherein
(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 represented by formula (I) or (II):
2. The ink for inkjet of claim 1 , wherein the ink comprises 3-methoxy-1-butanol in an amount of from 15 to 40% by weight.
3. The ink for inkjet of claim 1 , further comprising a member selected from the group consisting of 1,3-butanediol; 3-methyl-1,3-butandediol; 1,2-butanediol; 1,2-pentanediol; 2,3-butanediol; and 3-methyl-3-hydroxymethyloxetane in an amount of from 5 to 40% by weight.
4. An ink set comprising plural inks, wherein each of the inks is the ink for inkjet according to claim 1 .
5. An ink cartridge comprising a container comprising the ink for inkjet according to claim 1 .
6. An inkjet recorder, comprising:
an ink container comprising the ink for inkjet according to claim 1 ; and
an inkjet recording head configured to apply an energy to the ink to discharge the in the form of a droplet or a recording unit comprising the inkjet recording head.
7. An inkjet recorder, comprising:
the ink cartridge according to claim 5 ; and
an inkjet recording head configured to apply an energy to the ink to discharge the in the form of a droplet or a recording unit comprising the inkjet recording head.
8. Inkjet recording method, comprising:
applying an energy to the ink for inkjet according to claim 1 to discharge the ink on a recording medium.
9. An ink recorded matter, comprising:
a recording medium; and
a recorded image recorded with the ink for inkjet according to claim 1 , located on the recording medium.
10. The ink for inkjet of claim 1 , wherein
(C) the hydrodispersible colorant is a modified pigment modified with a geminal bisphosphonic acid group represented by formula (I):
11. The ink for inkjet of claim 1 , wherein
(C) the hydrodispersible colorant is a modified pigment modified with a geminal bisphosphonic acid group represented by formula (II):