摘要:
Disclosed is a method for producing toner, comprising (1) mixing, with an aqueous medium, a resin solution of an organic solvent in which amorphous polyester resin having unsaturated dicarboxylic acid monomer units is dissolved, and forming an amorphous polyester resin particle dispersion; (2) adding a radical polymerization initiator to the amorphous polyester resin particle dispersion obtained in (1), cross-linking the amorphous polyester resin, and forming a cross-linked amorphous polyester resin particle dispersion; and (3) mixing at least the cross-linked amorphous polyester resin particle dispersion obtained in (2), with a crystalline polyester resin particle dispersion, aggregating cross-linked amorphous polyester resin particles and crystalline polyester resin particles, and forming toner particles.
摘要:
A hydrophobilization method is disclosed, comprising subjecting particles to a hydrophobilizing treatment in an aqueous medium with a hydrophobilizing agent to hydrophobilize surfaces of the particles, wherein the surfaces of the particles are hydrophobilized with the hydrophobilizing agent in the presence of a phase transfer catalyst.
摘要:
An organic electroluminescent device includes a substrate; a plurality of light-emitting elements, each including an organic light-emitting layer held between a pair of electrodes; a display region which overlaps the substrate in plan view and in which the light-emitting elements are disposed; a first connection line which is disposed around the display region and is connected to one of the pair of electrodes and on which a transparent conductive layer is disposed; and a gas barrier layer covering end and top surfaces of the first connection line and top surfaces of the light-emitting elements.
摘要:
Disclosed is a toner manufacturing method, comprising: dispersing a polyester resin prepared by condensing a polyol and an unsaturated polycarboxylic acid into an aqueous medium and preparing a polyester resin particle dispersion liquid; adding a vinyl polymerizable monomer and a radical polymerization initiator to the polyester resin particle dispersion liquid to cause a radical polymerization reaction, followed by preparing a dispersion liquid of resin particles made of a resin in which vinyl polymerizable monomers react with the polyester resin; and mixing at least the resin particles made of the resin in which the vinyl polymerizable monomers react with the polyester resin, and a dispersion liquid of coloring agent particles, and forming toner particles by making the resin particles and the coloring agent particles cohere.
摘要:
Disclosed is a toner comprising at least a resin and a coloring agent, wherein the resin comprises toner particles in which a polyester resin unit is cross-linked by a diatomic cross-linking group expressed by a following general formula (1): —X1Y1X1— [wherein in the formula, X1 denotes a linking group; and Y1 denotes a radical polymer unit having a number average molecular weight Mn ranging from 5000 or more to 50000 or less, and a ratio Mw/Mn ranging from 1.0 or more to 1.2 or less, wherein Mw denotes a weight average molecular weight, and Mn denotes the number average molecular weight].
摘要:
An electrophotographic toner for electrostatic image development which is capable of obtaining a high chroma full-color image exhibiting clear color without color contamination and excellent light stability is disclosed, comprising a resin and a colorant, wherein the colorant comprises a pigment of C.I. Pigment Blue 76. There are also disclosed a full-color toner kit and an image forming method by use of the toner.
摘要:
Disclosed is a toner for developing an electrostatic image, a full color toner kit comprising the toner and an image formation method employing the a full color toner kit, the toner comprising at least a resin and a colorant, wherein the colorant includes C.I. Pigment Blue 60 having a powder X-ray diffraction peak (2θ) at 6.3±0.2° and 13.0±0.2°.
摘要:
An electrophotographic toner which is thermally stable in storage or as an image after being fixed and exhibits a sufficiently low melt viscosity and a high fluidity when heated during fixing is disclosed, comprising a colorant and a binder resin, wherein the binder resin contains a poly-branched resin composition in an amount of 0.5 to 20% by mass. There is also disclosed a method of producing the electrophotographic toner.
摘要:
An object is to provide an electrostatic charge image developing toner and an image forming method using the same capable of maintaining image properties for a long duration, which exhibit not only sufficient transparency and chromaticness, accompanied with high color reproduction and excellent charging characteristic, but also excellent heat resistance, together further with excellent light fastness and sufficient image holding ability. Disclosed is an electrostatic charge image developing toner of the present invention comprising a binder resin for toner particle formation and colorant particles dispersed in the binder resin, wherein the colorant particles comprise a dye and an antioxidant. Further, the electrostatic charge image developing toner wherein a volume-based median particle diameter of the colorant particles is preferably 10-100 nm, and also the dye contained in the colorant particles is preferably an oil-soluble dye or a metal chelate dye.
摘要:
A light-emitting device includes: a substrate; a plurality of light-emitting elements which is formed on the substrate and each of which has an anode partitioned by an insulating pixel partition wall, a cathode, and an organic light-emitting layer interposed therebetween and emits light by an electric field generated by the anode and the cathode; a first organic buffer layer that is formed by applying an organic compound and hardening the organic compound and covers a region larger than the region in which the plurality of light-emitting elements are formed; a second organic buffer layer that is that is formed by applying an organic compound and hardening the organic compound and is arranged above the substrate with the first organic buffer layer interposed therebetween so as to cover the plurality of light-emitting elements; and a gas barrier layer that is formed of an inorganic compound, covers a region larger than the region in which the first and second organic buffer layers are formed, and protects the plurality of light-emitting elements from air. In the light-emitting device, a region of the substrate overlapping the first organic buffer layer is not completely matched with a region of the substrate overlapping the second organic buffer layer.