The present disclosure provides an image forming apparatus that improves washing fastness of an image forming portion of a fabric on which a discharge printing ink and a color ink are ejected. An image forming apparatus of the present disclosure includes: a color ink ejector; a discharge printing ink ejector; and a controller, wherein the color ink ejector is configured to eject a color ink containing an aqueous resin emulsion on a fabric, the discharge printing ink ejector is configured to eject a discharge printing ink containing a reducing agent on the fabric, and the controller is configured to control the color ink ejector and the discharge printing ink ejector to eject the color ink on the fabric in a first step, and after the first step, to eject the discharge printing ink on the fabric in a second step.

Disclosed are a quantum dot-containing material, a method of preparing the quantum dot-containing material, a cross-linked material of the quantum dot-containing material, and a method of preparing the same, and a light-emitting device comprising the quantum dot-containing material. The quantum dot-containing material may include a quantum dot and an organic group chemically bound to a surface of the quantum dot, the organic group may include an azide group and a charge transport group, and the charge transport group may not be an unsubstituted benzene group.

Disclosed are a quantum dot-containing material, a method of preparing the quantum dot-containing material, a cross-linked material of the quantum dot-containing material, and a method of preparing the same, and a light-emitting device comprising the quantum dot-containing material. The quantum dot-containing material may include a quantum dot and an organic group chemically bound to a surface of the quantum dot, the organic group may include an azide group and a charge transport group, and the charge transport group may not be an unsubstituted benzene group.

A processing liquid composition of the present disclosure subjected to textile printing and which is used by being attached to a fabric including fibers having a hydroxyl group, includes an oxazoline group-containing polymer and an aromatic carboxylic acid. An oxazoline value of the oxazoline group-containing polymer is preferably 100 or more and 600 or less.

A system and method for production and implementation of a photonic crystal forming, aqueous solution, may include: a block polymer mixture and at least one solvent, wherein the at least one solvent comprises water. The “color” of the photonic crystal solution may be set either through a single, or multiple, brush block copolymer mixtures (i.e., premixed coloring) or through layering of multiple layers of distinct single, or multiple, brush block copolymer mixtures. The system functions as an aqueous structural color (i.e., a photonic crystal) precursor, wherein applying the water-based color solution to a substrate, functions to provide a desired photonic crystal object arrangement possessing color reflective properties.

A system and method for production and implementation of a photonic crystal forming, aqueous solution, may include: a block polymer mixture and at least one solvent, wherein the at least one solvent comprises water. The “color” of the photonic crystal solution may be set either through a single, or multiple, brush block copolymer mixtures (i.e., premixed coloring) or through layering of multiple layers of distinct single, or multiple, brush block copolymer mixtures. The system functions as an aqueous structural color (i.e., a photonic crystal) precursor, wherein applying the water-based color solution to a substrate, functions to provide a desired photonic crystal object arrangement possessing color reflective properties.

A white ink is provided. The white ink comprises water and hollow particles having a volume average particle diameter of from 300 to 800 nm. Each of the hollow particles comprises a hollow resin particle and an inorganic layer covering a surface of the hollow resin particle. The hollow resin particle has a resin layer having an average thickness of from 25 to 100 nm. The inorganic layer has an average thickness of from 5 to 20 nm.

An inkjet ink includes: an ink vehicle; a polymer; a surfactant package containing an ethoxylated acetylenic nonionic surfactant having an HLB value in the range of 5 to 10; and an ABA-type bis-alkoxylated silicone compound. The ink has a surface tension in the range of 26 to 31 mN/m.

An article comprising a double-switching heater that comprises a double-switching PTC ink deposited on a flexible substrate to form one or more resistors. The double-switching PTC ink comprises a first resin and a second resin; the first resin provides a first PTC effect within a first temperature range (T1, T2); the second resin provides a second PTC effect within a second temperature range (T3, T4), where T3≥T2; the first resin has an NTC effect above the first temperature range; the second PTC effect is greater than the first PTC effect; and the second PTC effect overlaps with, and is greater than, the NTC effect of the first resin. The substrate can be either thermal polyurethane, nylon or a polyester blend.

An article comprising a double-switching heater that comprises a double-switching PTC ink deposited on a flexible substrate to form one or more resistors. The double-switching PTC ink comprises a first resin and a second resin; the first resin provides a first PTC effect within a first temperature range (T1, T2); the second resin provides a second PTC effect within a second temperature range (T3, T4), where T3≥T2; the first resin has an NTC effect above the first temperature range; the second PTC effect is greater than the first PTC effect; and the second PTC effect overlaps with, and is greater than, the NTC effect of the first resin. The substrate can be either thermal polyurethane, nylon or a polyester blend.