Disclosed is a method of printing an ultranarrow line of a functional material. The method entails providing a substrate having an interlayer on the substrate and printing the ultranarrow line by depositing ink on the interlayer of the substrate, the ink comprising the functional material and a solvent mixture that partially dissolves the interlayer on the substrate to cause the ink to shrink and sink into the interlayer on the substrate thereby reducing a width of the line.

Disclosed is a method of printing an ultranarrow line of a functional material. The method entails providing a substrate having an interlayer on the substrate and printing the ultranarrow line by depositing ink on the interlayer of the substrate, the ink comprising the functional material and a solvent mixture that partially dissolves the interlayer on the substrate to cause the ink to shrink and sink into the interlayer on the substrate thereby reducing a width of the line.

An ink set for inkjet recording, comprising a first aqueous ink comprising a colorant stabilized by cationic dispersing groups and a capsule composed of a polymeric shell surrounding a core; the core comprising one or more chemical reactants capable of forming a reaction product upon application of heat and/or light and the capsule is stabilized by cationic dispersing groups; a second aqueous ink comprises a colorant stabilized by anionic dispersing groups and a capsule composed of a polymeric shell surrounding a core; the core comprising one or more chemical reactants capable of forming a reaction product upon application of heat and/or light and the capsule is stabilized by anionic dispersing groups.

An ink set for inkjet recording, comprising a first aqueous ink comprising a colorant stabilized by cationic dispersing groups and a capsule composed of a polymeric shell surrounding a core; the core comprising one or more chemical reactants capable of forming a reaction product upon application of heat and/or light and the capsule is stabilized by cationic dispersing groups; a second aqueous ink comprises a colorant stabilized by anionic dispersing groups and a capsule composed of a polymeric shell surrounding a core; the core comprising one or more chemical reactants capable of forming a reaction product upon application of heat and/or light and the capsule is stabilized by anionic dispersing groups.

Provided are an ink for ink jet recording, including a pigment, a water-soluble polymer for dispersing the pigment, an alkali metal salt, and a water-soluble organic solvent, in which a ratio of a content of the water-soluble polymer to a total mass of the alkali metal salt is 15 or less, and a content of the water-soluble organic solvent with respect to a total mass of the ink for ink jet recording is 18% by mass or less; a method for producing an ink for ink jet recording; and an image recording method.

Provided are an ink for ink jet recording, including a pigment, a water-soluble polymer for dispersing the pigment, an alkali metal salt, and a water-soluble organic solvent, in which a ratio of a content of the water-soluble polymer to a total mass of the alkali metal salt is 15 or less, and a content of the water-soluble organic solvent with respect to a total mass of the ink for ink jet recording is 18% by mass or less; a method for producing an ink for ink jet recording; and an image recording method.

A method for decorating a natural leather comprising the following steps: a) holding by vacuum suction the natural leather with its corium side to an air-permeable support onto a vacuum support of an inkjet printer; and b) inkjet printing a decorative image on the natural leather wherein the air-permeable support is partly covered by said natural leather. The air-permeable support comprises a fibrous layer in contact with the corium side of the natural leather.

A material composition and a manufacturing method of a light out-coupling lens for a quantum dot display panel are provided. The material composition includes trimethylolpropane tris(3-mercaptopropionate), triethyleneglycol divinyl ether, and an ultraviolet radical initiator. A molar ratio of trimethylolpropane tris(3-mercaptopropionate) to triethyleneglycol divinyl ether is 2:3. The material composition is cured by an ultraviolet light to form the light out-coupling lens. The manufacturing method of the light out-coupling lens includes steps of: mixing trimethylolpropane tris(3-mercaptopropionate) and triethyleneglycol divinyl ether; adding an ultraviolet free-radical initiator to form a material composition of the light out-coupling lens; disposing the material composition on a thin-film encapsulation layer of the quantum dot display panel; and subjecting the material composition to an ultraviolet curing process to form the light out-coupling lens.

A pigment composition for a pigment contained in ink or the like is provided, the pigment composition being capable of better preventing oxidation of the pigment from occurring in the ink or after printing, and better reducing discoloration of the pigment, even when the pigment has a small particle size such as a nanometer size. Further, a tablet and a capsule are provided. For example, the pigment composition includes: a black iron oxide; a dispersion medium; a dispersant; and an oxidation inhibitor, wherein the black iron oxide has a median diameter D50 of 30 nm or greater and 1 μm or less, and the oxidation inhibitor is reduced isomaltulose.

A pigment composition for a pigment contained in ink or the like is provided, the pigment composition being capable of better preventing oxidation of the pigment from occurring in the ink or after printing, and better reducing discoloration of the pigment, even when the pigment has a small particle size such as a nanometer size. Further, a tablet and a capsule are provided. For example, the pigment composition includes: a black iron oxide; a dispersion medium; a dispersant; and an oxidation inhibitor, wherein the black iron oxide has a median diameter D50 of 30 nm or greater and 1 μm or less, and the oxidation inhibitor is reduced isomaltulose.