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US 9,540,530 B2Granted
Water-based ink for ink-jet recording, ink cartridge and ink-jet recording apparatus
AssigneeBrother Kogyo Kabushiki Kaisha
InventorsMichiko Aoyama, Mitsunori Maeda
Life of this patent
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Abstract
A water-based ink for ink-jet recording includes: a pigment; water; 1,2-alkanediol; and a surfactant represented by the following general formula (1): R1CON(CH3)CH2CH2R2, wherein in the general formula (1), R1 is a saturated or unsaturated hydrocarbon group having 9 to 19 carbon atoms; the hydrocarbon group is straight chain or branched chain hydrocarbon group; R2 is SO3M or COOM; and M is Li, Na or K.
Claims18
A water-based ink for ink-jet recording comprising:
- a pigment;
- water;
- 1,2-alkanediol;
- and
- a surfactant represented by the following general formula (1):
- R1CON(CH3)CH2CH2R2 (1)
- wherein in the general formula (1), R1 is a saturated or unsaturated hydrocarbon group having 11 carbon atoms;
- the hydrocarbon group is a straight-chain or branched-chain hydrocarbon group;
- R2 is COOM;
- and M is Li, Na or K.
7 more elements
A water-based ink for ink-jet recording comprising:
- a pigment;
- water;
- 1,2-alkanediol;
- and
- a surfactant represented by the following general formula (1):
- R1CON(CH3)CH2CH2R2 (1)
- wherein in the general formula (1), R1 is a saturated or unsaturated hydrocarbon group having 9 to 19 carbon atoms;
- the hydrocarbon group is a straight-chain or branched-chain hydrocarbon group;
- R2 is SO3M or COOM;
- and M is Li, Na or K,
- wherein the surfactant represented by the general formula (1) is contained by 50% by weight to 100% by weight with respect to a total amount of surfactants contained in the water-based ink.
8 more elements
Dependencies are inferred from the claim text.