An electrophotographic light-sensitive medium is described comprising a light-sensitive layer containing a dis-azo compound represented by Formula (1)
wherein A represents a coupler having aromatic properties e.g. a group represented by
wherein X is a group capable of being condensed with the benzene ring of Formula (2) to form a naphthalene ring, an anthracene ring, a carbazole ring or a dibenzofuran ring, and R is -CONR, R2 or -COOR2, wherein R, is a group selected from hydrogen, a substituted or unsubstituted alkyl group, and a substituted or unsubstituted phenyl group, and R2 is a group selected from a substituted or unsubstituted alkyl group, a substituted or unsubstituted phenyl group, a substituted or unsubstituted naphthyl group, a substituted or unsubstituted pyridyl group, and a substituted or unsubstituted hydrazino group.
描述了一种电子照相感光介质,该介质包括一个感光层,其中含有由式(1)表示的二偶氮 化合物
其中 A 代表具有芳香特性的耦合剂,例如由以下式子表示的基团
其中 X 是能够与式(2)的苯环缩合形成萘环、蒽环、咔唑环或二苯并呋喃环的基团,R 是-CONR、R2 或-COOR2,其中 R 是选自氢、取代或未取代的烷基、和取代或未取代的苯基,而 R2 是选自取代或未取代的烷基、取代或未取代的苯基、取代或未取代的萘基、取代或未取代的吡啶基和取代或未取代的肼基的基团。
Alpha-type titanyl phthalocyanine composition, method for production thereof, and electrophotographic sensitive material using same
申请人:MITA INDUSTRIAL CO. LTD.
公开号:EP0314100A2
公开(公告)日:1989-05-03
The first aspect of this invention resides in providing an α-type titanyl phthalocyanine composition comprising an α-type titanyl phthalocyanine and metal-free phthalocyanine. This α-type titanyl phthalocyanine composition is stable, wide in range of absorption wavelengths, and high in spectral sensitivity because it contains an α-type titanyl phthalocyanine in combination with metal-free phthalocyanine.
The second aspect of this invention resides in providing a method for the production of an α-type titanyl phthalocyanine composition comprising an α-type titanyl phthalocyanine and a metal-free phthalocyanine, which method comprises pigmenting a concentrated sulfuric acid solution containing at least titanyl phthalocyanine by the acid paste process consisting in pouring said concentrated sulfuric acid solution into water. By this method, an α-type titanyl phthalocyanine composition stable to withstand the impact of aging can be easily produced.
The third aspect of this invention resides in providing an electrophotographic sensitive material having superposed on an electroconductive substrate a sensitive layer comprising an α-type titanyl phthalocyanine and a metal-free phthalocyanine. This electro photographic sensitive material excels in charging property and dark attenuation property and exhibits high sensitivity and sparing residual potential.
The fourth aspect of this invention resides in providing an electrophotographic sensitive material having superposed on an electroconductive substrate a sensitive layer comprising an α-type titanyl phthalocyanine composition and an electric charge transferring material exhibiting oxidation potential in the range of 0.45 to 0.65 eV. This electrophotographic sensitive material enjoys high sensitivity and shows sparing residual potential.
Ink for functional layer formation, method for manufacturing light emitting element, light emitting device, and electronic apparatus
申请人:Seiko Epson Corporation
公开号:EP2924083A1
公开(公告)日:2015-09-30
The ink for functional layer formation includes a first component that is a solute; and a second component with a boiling point of 280°C or higher and 350°C or lower, is a good solvent, and is at least one type selected from a group consisting of an aromatic hydrocarbon including at least two aromatic rings, aromatic glycol ether, aliphatic glycol ether, aliphatic acetate, and aliphatic ester.
FILM-FORMING INK, FILM-FORMING METHOD, FILM-EQUIPPED DEVICE, AND ELECTRONIC APPARATUS
申请人:Seiko Epson Corporation
公开号:EP3228668A1
公开(公告)日:2017-10-11
To provide a film-forming ink and a film formation method, capable of forming a film having a uniform thickness in an opening part included in a partition wall by suppressing or preventing seeping-up on a partition wall surface of the film-forming ink to be supplied as a liquid droplet into the opening part, and also to provide a device with a film and an electronic apparatus, each of which has a film formed using the film formation method.
A film-forming ink 1 of the invention includes a film-forming material and a liquid medium in which the film-forming material is dissolved or dispersed, wherein the liquid medium contains a first component which has a viscosity of less than 20 cp and a second component which has a boiling point at an atmospheric pressure within a range of ±30°C relative to the boiling point at an atmospheric pressure of the first component and has a viscosity of 20 cp or more, and the second component is contained in an amount of 20 parts by weight or more and 500 parts by weight or less with respect to 100 parts by weight of the first component.
Film-forming ink, film formation method, device with film, and electronic apparatus
申请人:SEIKO EPSON CORPORATION
公开号:US10557046B2
公开(公告)日:2020-02-11
To provide a film-forming ink and a film formation method, capable of making the dimensional accuracy of a film to be formed excellent by increasing the apparent liquid droplet amount of a film-forming ink to be supplied as a liquid droplet into an opening part included in a partition wall, and also to provide a device with a film and an electronic apparatus, each of which has a film formed using the film formation method. A film-forming ink of the invention includes a film-forming material and a liquid medium in which the film-forming material is dissolved or dispersed, wherein the liquid medium contains a first component which has a boiling point at an atmospheric pressure of 200° C. or higher and a second component which has a boiling point at an atmospheric pressure lower than the first component.