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US 2016/0355695 A1Published application
Ink for aqueous inkjet recording, inkjet recording method, and inkjet printed matter
AssigneeRicoh Company, Ltd.
InventorsTomohiro NAKAGAWA, Naohiro TODA, Hidefumi NAGASHIMA, lchiroh FUJII
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Abstract
An ink for aqueous inkjet recording contains: water; a hydrosoluble organic solvent; a pigment; and polycarbonate-based urethane resin particles, wherein the pigment contains a geminalbis phosphonic acid group and/or a geminalbis phosphonate group.
Claims9
1-8. (canceled)
An ink for aqueous inkjet recording comprising:
- water,
- a hydrosoluble organic solvent;
- a pigment;
- and
- polycarbonate-based urethane resin particles,
- wherein the pigment comprises at least one of a geminalbis phosphonic acid group or a geminalbis phosphonate group,
- wherein the pigment comprises at least one of groups represented by chemical formula 1 to chemical formula 4, respectively:
- in the chemical formula 3, X+ represents Li+, K+, Na+, NH4+, N(CH3)4+, N(C2H5)4+, N(C3H7)4+, or N(C4H9)4+,
- in the chemical formula 4, X+ represents Li+, K+, Na+, NH4+, N(CH3)4+, N(C2H5)4+, N(C3H7)4+, or N(C4H9)4+,
- wherein the polycarbonate-based urethane resin particles comprises a structure derived from at least one kind of alicyclic diisocyanate, and
- wherein the hydrosoluble organic solvent comprises at least one of 1,2-propane diol, 1,3-propane diol, 1,2-butane diol, 1,3-butane diol, or 2,3-butane diol.
8 more elements
Dependencies are inferred from the claim text.