Abstract: A water-based ink for ink-jet recording includes: a pigment; water; oligoethylene glycol monoalkyl ether; and a water-soluble resin. The water-soluble resin is an ABA-type triblock copolymer which has a polymer block A composed only of methyl methacrylate and methacrylic acid and a polymer block B composed only of benzyl methacrylate and methacrylic acid; which has a weight average molecular weight of 3,000 to 30,000; which has an acid value of 90 mgKOH/g to 200 mgKOH/g; and which is partially or completely neutralized.

Abstract: There is provided a water-based ink for ink jet-recording containing a pigment; a surfactant; and water, wherein a slope value of the water-based ink at an evaporation rate of 0% is not more than 15%/hour; and a slope value of the water-based ink at an evaporation rate of 30% is not less than 9%/hour, the slope value of the water-based ink being measured by a centrifugal transmission sedimentation method.

Abstract: There is provided a water-based ink set for ink-jet recording, including: a water-based black ink containing a self-dispersible pigment, a water-soluble organic solvent of which vapor pressure is less than 1 Pa, and water; water-based color inks of two or more colors each containing a color pigment, a resin dispersant, a water-soluble organic solvent of which vapor pressure is less than 1 Pa, and water, wherein an average value of blending amounts of the water-soluble organic solvents in all of the water-based inks constituting the water-based ink set is in a range of 15% by weight to 35% by weight, and the water-based ink set satisfies the following condition X and condition Y, condition X: C?K?0.6 condition Y: A?1.5.

Abstract: A water-based ink for ink-jet recording includes: a pigment; water; at least one of a water-soluble resin having a minimum film-forming temperature of not more than 80° C. and a water-dispersible resin having a minimum film-forming temperature of not more than 80° C.; and a micelle-forming compound having an alkyl group and an oxyethylene chain.

Abstract: A water-based ink for ink-jet recording includes a pigment; water; at least one of a water-soluble resin having an aryl group and a water-dispersible resin having the aryl group; and a micelle-forming compound having the aryl group and an oxyethylene chain.

Abstract: There is provided a water-based ink for ink-jet recording containing: water; at least one of quinacridone and a derivative thereof; and a dye represented by the following formula (1).

Abstract: A water-based ink for ink-jet recording includes: a pigment; water; a first resin containing at least one of methacrylic acid and acylic acid as a monomer; and a second resin, wherein the second resin is an ABA-type triblock copolymer which has a polymer block A composed only of methyl methacrylate and methacrylic acid and a polymer block B composed only of benzyl methacrylate and methacrylic acid; which has a weight average molecular weight of 3,000 to 30,000; which has an acid value of 90 mgKOH/g to 200 mgKOH/g; and which is partially or completely neutralized.

Abstract: A water-based ink for ink-jet recording includes: a pigment; water; oligoethylene glycol monoalkyl ether; and a water-soluble resin. The water-soluble resin is an ABA-type triblock copolymer which has a polymer block A composed only of methyl methacrylate and methacrylic acid and a polymer block B composed only of benzyl methacrylate and methacrylic acid; which has a weight average molecular weight of 3,000 to 30,000; which has an acid value of 90 mgKOH/g to 200 mgKOH/g; and which is partially or completely neutralized.

Abstract: A water-based ink for ink-jet recording includes: a pigment; water; a pigment dispersing resin including an ethylene oxide chain; and at least one of an anionic surfactant including an ethylene oxide group and a nonionic surfactant including an ethylene oxide group.

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.

Abstract: There is provided a water-based ink for ink jetrecording containing a pigment; a surfactant; and water, wherein a slope value of the water-based ink at an evaporation rate of 0% is not more than 15%/hour; and a slope value of the water-based ink at an evaporation rate of 30% is not less than 9%/hour, the slope value of the water-based ink being measured by a centrifugal transmission sedimentation method.

Abstract: A water-based ink for ink-jet recording includes: a pigment; water; a nonionic surfactant having an ethylene oxide chain; an anionic surfactant having an ethylene oxide chain; and a penetrant having an ethylene oxide chain, wherein the nonionic surfactant, the anionic surfactant, and the penetrant satisfy the following conditions (I) to (III).

Abstract: There is provided a water-based ink for ink-jet recording containing: a pigment; a surfactant; and water, wherein dynamic surface tension of the water-based ink measured under a condition of temperature of 25 degrees Celsius and lifetime of 10 ms is not less than 35 mN/m; and dynamic surface tension of the water-based ink measured under a condition of temperature of 25 degrees Celsius and lifetime of 50 ms is not more than 34.5 mN/m.

Abstract: A water-based ink for ink-jet recording includes a pigment; water; at least one of a water-soluble resin having an aryl group and a water-dispersible resin having the aryl group; and a micelle-forming compound having the aryl group and an oxyethylene chain.

Abstract: A water-based ink for ink-jet recording includes: a pigment; water; at least one of a water-soluble resin having a minimum film-forming temperature of not more than 80° C. and a water-dispersible resin having a minimum film-forming temperature of not more than 80° C.; and a micelle-forming compound having an alkyl group and an oxyethylene chain.

Abstract: A recording method includes applying, to a recording medium, a treatment agent containing inorganic fine particles; discharging a bright pigment ink containing a bright pigment and water to a portion of the recording medium to which the treatment agent has been applied; and discharging a water-based pigment ink containing a pigment different from the bright pigment and water to the portion of the recording medium to which the bright pigment ink has been discharged.

Abstract: There is provided a water-based ink for ink-jet recording, including: a pigment; water; and alkyl glucoside which has alkyl group having 6 or more carbon atoms.

Abstract: A water-based ink for ink-jet recording includes a pigment; water; 1,2-alkanediol; a compound including an isothiazoline ring; and a surfactant represented by a general formula (1): In the general formula (1); each of R1, R2, R3, and R4 is one of a hydroxyl group, saturated fatty acid having a number of carbon atoms of 12 to 18 and unsaturated fatty acid having a number of carbon atoms of 12 to 18; and a, b, c, and d are identical with each other or different from each other, and a, b, c, and d are numbers to fulfill a+b+c+d?20.

Abstract: A water-based ink for ink-jet recording includes a self-dispersible pigment which is modified with phosphate group, at least one of dextran and a derivative thereof, and water.

Abstract: An ink set including: a treatment agent containing 2,2,4-trimethyl-1,3-pentanediol-1-monoisobutyrate or a derivative thereof; and a bright pigment ink containing a bright pigment and water, wherein the treatment agent or the bright pigment ink contains urethane resin; and the ink set satisfies the following conditions (A) and (B): 1?X?6??(A) 0.2?Y/X?2??(B) X: the sum of a blending amount (% by weight) of the urethane resin in the treatment agent and a blending amount (% by weight) of the urethane resin in the bright pigment ink Y: a blending amount (% by weight) of the 2,2,4-trimethyl-1,3-pentanediol-1-monoisobutyrate and the derivative thereof in the treatment agent.