Abstract: A ceramide dispersion composition, includes: at least one ceramide represented by Formula (1) or Formula (2); a surfactant; and trisodium ascorbyl palmitate phosphate, wherein in Formula (1), R1 represents an aliphatic hydrocarbon group having at least one unsaturated double bond, R2 represents an alkyl group having 9 or more carbon atoms, and n represents an integer from 20 to 34; and in Formula (2), R3 represents an aliphatic hydrocarbon group having at least one unsaturated double bond, R4 represents an alkyl group having 9 or more carbon atoms, m represents an integer from 20 to 34, and X represents a hydrogen atom or a hydroxyl group.

Abstract: Disclosed is an ink composition for ink jet recording containing water, a pigment, a (meth)acrylamide compound, and a polymer particle made of a polymer composed of a structural unit derived from a methacrylic acid and a structural unit derived from methacrylic acid ester having an SP value of from 19.0 MPa1/2 to 25.0 MPa1/2.

Abstract: An image forming method including applying an ink composition onto a recording medium by an inkjet method, and applying an liquid including particles onto the recording medium is disclosed.

Abstract: The invention provides an ink composition comprising a colorant, water and wax particles, the wax particles comprising at least two kinds of wax; an ink set including the ink composition; and a method of forming an image using the ink composition.

Abstract: An image forming method includes ejecting an ink composition including a volatile organic solvent with a solubility parameter of 20 MPa1/2 to 25 MPa1/2, acid-functionalized polymer colloid particles with a glass transition temperature of 25° C. to 85° C., and a pigment with a surface at least a part of which is coated with a polymer, onto a non-porous substrate by an ink jet method to form an image, and the absolute value of the difference between the solubility parameter of the non-porous substrate and the solubility parameter of the volatile organic solvent of the ink composition falls within 15 MPa1/2.

Abstract: There is provided an ink set including an aqueous ink composition and a maintenance liquid. The aqueous ink composition includes water; a pigment; resin particles having a minimum film-forming temperature MFT0, which is a minimum film-forming temperature obtained when the resin particles are dispersed in water, of 60° C. or higher; and a water-soluble organic solvent, wherein a minimum film-forming temperature MFT25 of the resin particles, which is a minimum film-forming temperature obtained when the resin particles are mixed with the water-soluble organic solvent in an amount of 25% by mass relative to the solid content of the resin particles, and water, is at least 40° C. lower than MFT0. The maintenance liquid includes an organic solvent and water. There is also provided an image recording method.

Abstract: An ink set for ink jet recording including an ink composition containing a coloring material, and a polymer particle including 65 mass % or more of a constituent unit derived from a methacrylic acid derivative, and a treating liquid which forms an aggregate when contacted with the ink composition, and an ink jet recording method using the same are provided.

Abstract: An image forming method including: applying a treatment liquid containing a copolymer of epihalohydrin and dimethylamine to a recording medium having a coated layer; and applying an ink composition containing a self-dispersing pigment, a solvent, a surfactant, wax particles and water to the recording medium.

Abstract: The invention provides a water-based ink composition including: a water-based medium, a colored particle containing a pigment and a water-insoluble polymer dispersant, and a self-dispersing polymer particle including a hydrophilic constituent unit, and a hydrophobic constituent unit derived from alicyclic (meth)acrylate, as well as an ink set comprising the water-based ink composition, and an image forming method using the aqueaous ink composition or the ink set.

Abstract: An ink composition is disclosed which includes a pigment that is coated with a water-insoluble resin, particles of a water-insoluble polymer having a glass transition temperature of 100° C. or higher, a solid moistening agent, a water-soluble organic solvent, particles of a wax having a melting point of from 40° C. to lower than 100° C., and water.

Abstract: There are provided an ink composition including a coloring material, a hydrophilic organic solvent, polymer particles that have a minimum filming temperature (MFTdisp) of 60° C. or more when dispersed in water and that have a MFT 40° C. or more lower than the MFTdisp when mixed with water and 25 mass % of the hydrophilic organic solvent based on a solid content of the polymer, and water; an ink set including the ink composition and a treating liquid capable of forming an aggregate upon contact with the ink composition; and an ink-jet recording method using the ink composition or the ink set.

Abstract: An ink-jet ink composition comprising: a pigment, a polymer pigment dispersion, polymer particles, a hydrophilic organic solvent, water, and at least one of a water-soluble acidic compound having a molecular weight of 200 or less or a salt thereof in an amount of from 50 ppm to 1,000 ppm; an ink set that includes the ink-jet ink composition and a treatment liquid that forms an aggregate when contacted with the ink-jet ink composition; and an image forming method using the ink set.

Abstract: The method forms an image using an inkjet recording apparatus, which includes: an image formation unit having a line head type inkjet head disposed opposite a circumferential surface of an image formation drum, the inkjet head depositing the aqueous ink onto the recording medium while the recording medium is held and conveyed in rotation on the circumferential surface of the image formation drum; and a drying unit arranged on a downstream side of the image formation unit, the drying unit having a drying device disposed opposite a circumferential surface of a drying drum, the drying device drying a solvent in the aqueous ink deposited on the recording medium, the drying unit drying the solvent by means of the drying device while the recording medium is held and conveyed in rotation on the circumferential surface of the drying drum; using, as the recording medium, a special paper which is a recording medium successively laminated from a base paper, a first layer containing a binder and a second layer containing

Abstract: An ink-jet ink composition comprising: a pigment, a polymer pigment dispersion, polymer particles, a hydrophilic organic solvent, water, and at least one of a water-soluble acidic compound having a molecular weight of 200 or less or a salt thereof in an amount of from 50 ppm to 1,000 ppm; an ink set that includes the ink-jet ink composition and a treatment liquid that forms an aggregate when contacted with the ink-jet ink composition; and an image forming method using the ink set.

Abstract: An ink composition for ink-jet recording, including: coloring particles containing a pigment that is coated with a water-insoluble polymer dispersant, and self-dispersing polymer particles containing a first polymer which includes a constituent unit derived from a hydrophilic monomer and a constituent unit derived from a hydrophobic monomer, and which has a glass transition temperature from 150° C. to 250° C. and an I/O value of from 0.20 to 0.55; an ink set including the ink composition; and an image forming method using the ink set are provided.

Abstract: An ink set for inkjet recording including an ink composition including a dispersion of a pigment dispersed by a water-insoluble polymer which is formed by copolymerizing a monomer mixture containing a styrenic macromer, as well as self-dispersing polymer particles, a water-soluble organic solvent, and water; and a reactive liquid which forms an aggregate when contacted with the ink composition; and an image recording method using the ink set, are provided.

Abstract: The inkjet recording method includes: a treatment liquid depositing step of applying treatment liquid onto a recording medium on a treatment liquid drum; an image forming step of ejecting ink from a line inkjet head to deposit the ink onto the recording medium on which the treatment liquid has been deposited on a circumferential surface of an image formation drum, the ink containing at least a resin dispersant (A), a pigment (B) that is dispersed by the resin dispersant (A), self-dispersible polymer micro-particles (C) and an aqueous liquid medium (D), the ink having one of a solid component that is aggregated upon making contact with the treatment liquid and a solid component that is precipitated upon making contact with the treatment liquid; and a drying step of drying a solvent in the ink having been deposited on the recording medium on a drying drum.

Abstract: An inkjet recording method is disclosed, in which the method includes: recording an image, on a recording medium, using two or more ink compositions each comprising at least a pigment, by applying the two or more ink compositions to an acidic surface of the recording medium at a dotting interval of 500 msec or less; wherein the recording includes forming at least a first color sub-image by applying at least one of the two or more ink compositions and the at least one of the two or more ink compositions includes a self-dispersing polymer having an acid value of from 70 to 120 mgKOH/g and a water-soluble organic solvent.

Abstract: An image forming method is disclosed, which includes applying a treatment liquid onto a recording medium that has a coated layer and has an area of 1,250 cm2 or more, applying an ink composition including a pigment and resin particles having a glass transition temperature (Tg) of 100° C. or higher onto the recording medium onto which the treatment liquid has been applied and which is conveyed at a conveyance speed of 200 mm/s or higher, heating and drying the applied treatment liquid and ink composition, cooling the recording medium that has been subjected to the heating and drying, to a temperature of 35° C. or lower, and accumulating the recording medium that has been subjected to the cooling, into an accumulation unit.

Abstract: An inkjet ink composition includes a colorant, two or more hydrophilic organic solvents, and particles of a polymer containing a structural unit derived from a hydrophilic monomer and a structural unit derived from a hydrophobic monomer. The polymer has a glass transition temperature of 150° C. or higher and an I/O value of from 0.2 to 0.55, and the particles of the polymer have a volume average particle diameter of from 0.1 to 10 nm.