Abstract: Provided are a textile printing ink set including a pretreatment liquid including a cationic compound having a molecular weight per cationic valence of 150 to 220, and an ink composition including a water-insoluble dye, a dispersing agent, and water, wherein the dispersing agent is at least one selected from the group consisting of a urethane resin, a urea resin, and a urethane-urea resin; and a textile printing method.

Abstract: Provided are a colored resin particle dispersion containing colored resin particles and water, in which the colored resin particles contain a water-insoluble chain polymer and at least one dye selected from the group consisting of an oil-soluble dye, a disperse dye and a vat dye, and the water-insoluble chain polymer has a structure represented by the following General Formula (G), a cyclic structure, and a hydrophilic group, an ink manufactured using the colored resin particle dispersion, an ink set having the ink, an inkjet printing method using the ink, and a method of manufacturing the colored resin particle dispersion. In the General Formula (G), Rg represents a hydrogen atom or a substituent, Lg represents —O—, —S—, or —NRz-, Rz represents a hydrogen atom or a substituent, and * represents a bonding position.

Abstract: Provided are an ink jet ink, an ink set, and an image recording method, in which an image with an excellent covering property can be recorded and abrasion deterioration of an ink jet head can be suppressed. The ink jet ink is an ink jet ink including water, titanium dioxide particles, and a silicon compound, in which an average primary particle diameter of the titanium dioxide particles is 100 nm or greater, the silicon compound is at least one selected from the group consisting of a silicate and colloidal silica, a content of the silicon compound is 0.0020% by mass or greater with respect to a total amount of the titanium dioxide particles, and a ratio of a volume average particle diameter of the colloidal silica to the average primary particle diameter of the titanium dioxide particles is 0.04 or less.

Abstract: An image recording method includes: preparing a white ink that contains a white pigment, a first organic solvent having a boiling point of 120° C. or higher, and water; preparing a colored ink that contains a colored pigment other than the white pigment, a second organic solvent having a boiling point of 120° C. or higher, and water; and recording an image by applying each of the white ink and the colored ink onto an impermeable base material, in which an image is recorded under conditions that a total mass of the first organic solvent and the second organic solvent is 5.5 g/m2 or less, and a mass of the white pigment is 0.4 g/m2 or greater in a region where a region to which the white ink is applied and a region to which the colored ink is applied overlap each other in plan view.

Abstract: Provided are an ink set and an image recording method which enable an image recorded material with excellent adhesiveness and excellent bend resistance to be obtained in a case where an image is recorded using a colored ink and a white ink. The ink set is an ink set including a colored ink which contains at least one colored pigment selected from the group consisting of a chromatic pigment and a black pigment, a first pigment dispersant, and water, and a white ink which contains a white pigment, a second pigment dispersant, and water, in which the first pigment dispersant is a random polymer, and the second pigment dispersant is a block polymer.

Abstract: Provided is an image recording method including a step of preparing an ink containing water and a white pigment, and a step of jetting the ink from an ink jet head in a liquid droplet amount of 1.0 pL or greater to apply the ink onto a base material, in which in a case where an ink jetting surface of the ink jet head is immersed in the ink in a vertically standing state for 2 seconds, the jetting surface is pulled up from the ink in the state, and the jetting surface is allowed to stand in the state for 1 minute, a ratio of an area of a region to which the ink is adhered to an area of the jetting surface is 40% by area or less.

Abstract: Provided are an ink set including a colored ink containing a colored pigment which is at least one of a chromatic pigment or a black pigment, a pigment dispersant, and water, and a white ink containing a white pigment, a pigment dispersant, and water, in which the pigment dispersants respectively contained in the colored ink and the white ink contain a polymer having a crosslinked structure or a block polymer, and an image recording method.

Abstract: An ink jet textile printing ink containing: water; a coloring material; a polymer X which is a water-soluble polymer with a weight-average molecular weight of 6,000 to 35,000, including at least one selected from the group consisting of a structural unit derived from alkylene glycol, a structural unit derived from vinyl alcohol, and the like; a solvent A which is a water-soluble organic solvent with a molecular weight of 160 or less, in which a ratio of the solvent A in all water-soluble organic solvents contained is 70 mass % or greater, a content of the polymer X is greater than 0.8 mass % and 7.0 mass % or less, and a content mass ratio [solvent A/polymer X] is 7.0 to 50.

Abstract: Provided are a textile printing ink set including a pretreatment liquid including a quaternary ammonium cation having a molecular weight of 3000 or less, and an ink composition including a water-insoluble dye, a dispersing agent, and water, wherein a content of the quaternary ammonium cation relative to a total amount of the pretreatment liquid is 5 mass % to 20 mass %; and a textile printing method.

Abstract: Provided are a textile printing ink set including a pretreatment liquid including a cationic compound having a molecular weight per cationic valence of 150 to 220, and an ink composition including a water-insoluble dye, a dispersing agent, and water, wherein the dispersing agent is at least one selected from the group consisting of a urethane resin, a urea resin, and a urethane-urea resin; and a textile printing method.

Abstract: Provided are: an overcoat liquid for inkjet textile printing including particles of an anionic polyurethane, particles of a wax, a water-soluble organic solvent, and water, wherein the content of the particles of the anionic polyurethane is 4 mass % to 20 mass % relative to the total amount of the overcoat liquid, the content of the particles of the wax is 0.1 mass % to 3 mass % relative to the total amount of the overcoat liquid, and the content of the water-soluble organic solvent satisfies formula (1) in units of mass %, an ink set for inkjet textile printing; and an inkjet textile printing method. 0.7×A+0.8×B+C<20??(1) See the specification for definitions of A, B, and C.

Abstract: A colored resin particle dispersion containing colored resin particles and water, in which the colored resin particles contain an oil-soluble dye and a polymer P containing a structural unit represented by Formula (1), a structural unit represented by Formula (2), and a hydrophilic group, an ink, an ink set, and an inkjet printing method. L1 represents a chain hydrocarbon group having 4 to 10 carbon atoms, two *1's each represent a bonding position, L2 represents a chain hydrocarbon group having 2 to 25 carbon atoms which may contain an oxygen atom or the like, or a polymer chain having a number-average molecular weight of 500 or greater, Y1 and Y2 each independently represent —O—, —S—, or, —NRz-, Rz represents a hydrogen atom or a hydrocarbon group having 1 to 20 carbon atoms, and two *2's each represent a bonding position.

Abstract: An ink tank including: a container for storing an ink jet ink; and a silicon-containing member housed in the container, in which an SN ratio that is a ratio of a total surface area S m2 of the silicon-containing member to a capacity V m3 of the container is 40 or greater. An ink jet recording device includes the ink tank and an ink jet head including a nozzle member containing silicon. An ink jet recording method includes preparing the ink tank, supplying the ink jet ink to an ink jet head including a nozzle member containing silicon, and jetting an ink jet ink from the nozzle member of the ink jet head.

Abstract: Provided are a colored resin particle dispersion containing colored resin particles and water, in which the colored resin particles contain a water-insoluble chain polymer and at least one dye selected from the group consisting of an oil-soluble dye, a disperse dye and a vat dye, and the water-insoluble chain polymer has a structure represented by the following General Formula (G), a cyclic structure, and a hydrophilic group, an ink manufactured using the colored resin particle dispersion, an ink set having the ink, an inkjet printing method using the ink, and a method of manufacturing the colored resin particle dispersion. In the General Formula (G), Rg represents a hydrogen atom or a substituent, Lg represents —O—, —S—, or —NRz-, Rz represents a hydrogen atom or a substituent, and * represents a bonding position.

Abstract: A black ink-jet printing ink comprising: a) from 9 to 11.5 parts of C.I. Reactive Black 39; b) from 5 to 7.5 parts of C.I. Reactive Brown 11 and/or C.I. Reactive Yellow 95; c) from 2.5 to 4 parts of C.I. Reactive Orange 12 and/or C.I. Reactive Orange 13; d) from 0.1 to 10 parts of a buffer; e) from 15 to 30 parts of ethylene glycol; f) from 0 to 10 parts of a water miscible solvent; g) from 0.01 to 2.5 parts of a non-ionic surfactant; h) from 4 to 14 parts of urea; i) from 0 to 5 parts of biocide; and j) the balance to 100 parts water. Also an ink-jet printing process, a multicolour ink-set and printed substrates.

Abstract: A black ink-jet printing ink comprising: a) from 9 to 11.5 parts of C.I. Reactive Black 39; b) from 5 to 7.5 parts of C.I. Reactive Brown 11 and/or C.I. Reactive Yellow 95; c) from 2.5 to 4 parts of C.I. Reactive Orange 12 and/or C.I. Reactive Orange 13; d) from 0.1 to 10 parts of a buffer; e) from 15 to 30 parts of ethylene glycol; f) from 0 to 10 parts of a water miscible solvent; g) from 0.01 to 2.5 parts of a non-ionic surfactant; h) from 4 to 14 parts of urea; i) from 0 to 5 parts of biocide; and j) the balance to 100 parts water. Also an ink-jet printing process, a multicolour ink-set and printed substrates.

Abstract: An ink for inkjet recording is provided, the ink including water, a coated carbon black that includes a carbon black pigment having a TEA adsorption capacity of 0.5 meq/g or more and a resin that coats the carbon black, resin particles, and a water-soluble organic solvent having an SP value of less than 28 at a content of 2% by mass or more with respect to the total mass of the ink for inkjet recording, wherein a product of a glass transition temperature of the resin particles and the TEA adsorption capacity of the carbon black pigment is 40° C.·meq/g or more. An ink set, an image forming method, and a maintenance method are also provided.

Abstract: An image formation method includes an ink ejection process of ejecting, from an inkjet head having a liquid-repellent film on an ejection surface thereof, an ink composition including: an oxidative-treated carbon black pigment having an average primary particle diameter of 25 nm or less and having an amount of oxygen of 5 atomic % or more on a surface thereof; a water-soluble nonionic compound including at least one selected from the group consisting of an ethyleneoxy chain and a propyleneoxy chain and in which a total number of the ethyleneoxy chain and the propyleneoxy chain is from 3 to 25; and water.

Abstract: The present invention provides an image forming method and an ink composition whereby deterioration of a head plate, which is formed of silicon, is suppressed, and an image with higher precision is formed stably, the ink composition including an inorganic silicate compound and being ejected to form an image from an ink-jet head having a nozzle plate where a C8F17C2H4SiCl3 film (fluorocarbon film) is provided on the surface thereof at a side toward the ink ejection direction of a nozzle.

Abstract: The present invention provides an ink composition for inkjet recording, containing colloidal silica, urea, a coloring material, and water.