公开(公告)号：EP0211583A3

公开(公告)日：1988-08-24

申请号：EP86305730

申请日：1986-07-25

申请人： XEROX CORPORATION

发明人： Gruber, Robert John ,  Yourd, Raymond A. ,  Julien, Paul C. ,  Knapp, John F. ,  Bolte, Steven B.

IPC分类号： G03G09/08

CPC分类号： G03G9/09335 ,  G03G9/09321

摘要： An electrostatographic toner composition comprising resin particles, colloidal silica additive particles, and coloured pigment paticles; and wherein each of the toner particles is encapsulated in a continuous shell from about 1 to about 30 percent by weight of a waxy substance with a molecular weight of from about 500 to about 20,000.

公开(公告)号：EP0255716A3

公开(公告)日：1988-07-20

申请号：EP87111252

申请日：1987-08-04

申请人： DAINIPPON INK AND CHEMICALS, INC.

发明人： Utsumi, Hiroshi ,  Shinzo, Kinji ,  Kuriyama, Kazuya ,  Sugawara, Ryouzo ,  Fukuda, Masanobu ,  Hiraishi, Shunichi

IPC分类号： G03G09/08

CPC分类号： G03G9/0806 ,  G03G9/0812 ,  Y10S525/934 ,  Y10S526/909

摘要： A toner for developing electrostatic images and a process for producing the same is disclosed. The process comprises applying ultrasonic waves to raw materials in the course of charging the raw materials into a reaction vessel or to a raw material mixture comprising addition polymerizable monomer(s), coloring agent(s), and water as indispensable components in a reaction vessel at an applica­tion amount of from 0.05 to 50 W/ℓ/hr. per unit treating volume and time using an ultrasonic homogenizer having frequencies of from 10 kHz to 50 kHz, followed by subjecting the raw material mixture to suspension polymerization.

公开(公告)号：EP0194776A3

公开(公告)日：1988-03-16

申请号：EP86301263

申请日：1986-02-21

申请人： MINNESOTA MINING AND MANUFACTURING COMPANY

发明人： Zwadlo, Gregory L. c/o Minnesota Mining and ,  Kidnie, Kevin M. c/o Minnesota Mining and

IPC分类号： G03G09/08 ,  G03G05/12

CPC分类号： G03G7/0046 ,  G03G5/12 ,  G03G7/0026 ,  G03G9/12 ,  G03G11/00

摘要： There is disclosed here a method of transferring an assembly of overlaid color toner images from a primary electrostatic imaging surface (e.g., a photoconductor) to a receptor sheet by embedding and encapsulating the toner particles in a transparent binder. The transfer is accomplished in one step with no loss in image quality, either in color or in resolution, and presents a glossy final result. The final encapsulated image is also protected from abrasion and contamination.

摘要翻译： 这里公开了一种通过将调色剂颗粒嵌入和封装在透明粘合剂中而将来自主静电成像表面（例如，光电导体）的重叠颜色调色剂图像的组件转印到受体片上的方法。 转印一步完成，图像质量没有任何损失，无论是以彩色还是分辨率，并呈现出光滑的最终结果。 最终封装的图像也受到保护，免受磨损和污染。

公开(公告)号：EP0238130A3

公开(公告)日：1988-01-07

申请号：EP87200424

申请日：1987-03-06

申请人： TOYO INK MANUFACTURING CO., LTD.

发明人： Koishi, Masumi Unomori E403, 30, Unomori ,  Sawada, Manabu c/o Toyo Ink Mfg., Co., Ltd. ,  Igarashi, Nobuyuki c/o Toyo Ink Mfg., Co., Ltd. ,  Arikawa, Akira c/o Toyo Ink Mfg., Co., Ltd.

IPC分类号： G03G09/08

CPC分类号： G03G9/0804 ,  G03G9/0819 ,  G03G9/0825

摘要： A toner for electrophotographs which is prepared by mixing thermoplastic resin core particles (A) having an average size of from 1 to 15µ with a colorant (B) and without or together with at least one of additives in a finely particulate form while applying mechanical strain force to the whole under such conditions that the average size of the resulting toner particles is in the range of 1-20µm whereby the colorant (B) and the other necessary fine particles are embedded substantially as primary particles in the resin core particles (A). A process for production of the toner is also disclosed.

公开(公告)号：EP0178952A3

公开(公告)日：1987-09-02

申请号：EP85307587

申请日：1985-10-21

申请人： CANON KABUSHIKI KAISHA

发明人： Ikeda, Takeshi ,  Imai, Eiichi ,  Fukumoto, Hiroshi ,  Tanaka, Katsuhiko ,  Suematsu, Koshi ,  Urawa, Motoo ,  Takenouchi, Masanori

IPC分类号： G03G09/08

CPC分类号： G03G9/09775 ,  G03G9/097 ,  G03G9/09783 ,  G03G15/0812 ,  G03G15/0818 ,  Y10S430/146

摘要： A triboelectrically chargeable composition for use in development of electrostatic latent images. The composition comprises a positively chargeable compound and a base material carrying the positively chargeable compound. The positively chargeable compound has an oxidation potential of 750 mV or below, a whiteness W of 0.5 or above and an average particle size of 5.0 microns or smaller. The composition is embodied typically as a positively chargeable toner and also as a charge-imparting material for charging a toner. The positively chargeable toner is especially adapted for development of digital latent images, e.g., as produced by laser beam scanning.

公开(公告)号：EP0128569A3

公开(公告)日：1985-10-30

申请号：EP84106610

申请日：1984-06-08

申请人： Kao Corporation

发明人： Yasuda, Shinichiro ,  Morimoto, Eiji ,  Ueda, Yuichi

IPC分类号： G03G09/08

CPC分类号： G03G9/08755

摘要： An electrophotographic developer composition, toner, comprises a binder of a polyester resin and a colorant, said polyester resin having a softening point of 80 to 180 °C, further having been obtained by copolycondensing (A) a diol component with (B) carboxylic acid components comprising (a) a dicarboxylic acid, (b) trimellitic acid and (c) a polycarboxylic acid. It is improved in the fixation property.

公开(公告)号：EP0024762A3

公开(公告)日：1981-03-18

申请号：EP80200775

申请日：1980-08-18

申请人： Océ-Nederland B.V.

发明人： Peters, Martinus, Theodorus, Johannes ,  Verbunt, Joannes, Adrianus

IPC分类号： G03G05/14 ,  G03G09/08

CPC分类号： G03G5/0683 ,  G03G9/0823

摘要： Electrophotographic process in which a charge pattern is formed on a photoconductive element comprising a charge generating pigment-binder layer and a smooth charge-conveying top layer and the charge pattern is developed with a one-component developing powder of which the particles have a specific resistance exceeding 10 11 Ohm.m. Preferably the electrophotographic process is performed on a photoconductive element comprising a charge generating pigment-binder layer which is composed of a dispersion of an azo dye in a charge-transfer-complex of a polyvinyl carbazole and a nitrated fluorene derivative.

摘要翻译： 在包含电荷产生颜料 - 粘合剂层和光滑电荷输送顶层的光导元件上形成电荷图案的电子照相方法，并且电荷图案用其中颗粒具有电阻率的单组分显影粉显影 超过10 <1>欧姆。 优选地，电子照相方法在包含电荷产生颜料 - 粘合剂层的光导元件上进行，所述电荷产生颜料 - 粘合剂层由在聚乙烯基咔唑的电荷转移络合物和硝化芴衍生物中的偶氮染料的分散体组成。

公开(公告)号：EP0004748A3

公开(公告)日：1979-11-14

申请号：EP79300512

申请日：1979-03-29

申请人： XEROX CORPORATION

发明人： Volkers, Stewart W. ,  Webb, John L.

IPC分类号： G03G09/08 ,  G03G09/10

CPC分类号： G03G9/10 ,  G03G9/0819

摘要： Electrostatographic developer mixtures providing substantially improved copy quality are disclosed. The developer mixtures comprise toner particles substantially all of which are of a size between a lower size limit of 3 microns and an upper size limit of between 8 and 15 microns. The carrier particles have a mean size which is not less than the upper size limit of the toner particles and not greater than 65 microns. Imaging processes employing the developer mixtures are also disclosed.

公开(公告)号：EP0216295A3

公开(公告)日：1988-12-14

申请号：EP86112781

申请日：1986-09-16

申请人： CANON KABUSHIKI KAISHA

发明人： Tanaka, Katsuhiko ,  Tanikawa, Hirohide CANON-Ryo ,  Kitamori, Naoto ,  Kukimoto, Tsutomu ,  Uchiyama, Masaki ,  Mitsuhashi, Yasuo

IPC分类号： G03G09/08 ,  G03G09/10

CPC分类号： G03G9/10 ,  G03G9/09783

摘要： A positively chargeable toner for developing electrostatic images in electrophotography, electrostatic recording, electrostatic printing, etc. The toner contains a binder resin, a colorant or magnetic material, and a diorganotin borate. Because of the diorganotin borate contained, the toner has a uniform and stable triboelectric chargeability. The improved properties of the toner are enhanced when it is combined with positively chargeable fine silica powder.

公开(公告)号：EP0192485A3

公开(公告)日：1988-04-20

申请号：EP86301220

申请日：1986-02-20

申请人： Montedison S.p.A.

发明人： Matijevic, Egon ,  Gherardi, Paola

IPC分类号： C09C01/36 ,  G03G09/08

CPC分类号： B82Y30/00 ,  B01J21/063 ,  C01P2002/52 ,  C01P2002/70 ,  C01P2004/04 ,  C01P2004/32 ,  C01P2004/51 ,  C01P2004/61 ,  C01P2004/64 ,  C01P2004/82 ,  C01P2004/86 ,  C01P2006/12 ,  C01P2006/42 ,  C01P2006/60 ,  C09C1/3661 ,  Y10T428/2993

摘要： Spherical particles having sizes from 0.05 µm to 3.04 µm, and having a narrow size distribution, consist essentially of TiO 2 coated with a uniform layer having a thickness up to 400 A consisting essentially of a- or γ-Fe 2 O 3 , magnetite or mixtures thereof. Such particles may be prepared by a process comprising precipitating the iron oxide from a Fe (III) salt solution on the surface of solid preformed TiO 2 particles, the Fe (III) concentration being less than or equal to 40% by weight calculated on the basis of TiO 2 , the pH of the suspension being from 1.0 to 2.8, extremes excluded, and by heating the suspension to a temperature of from 80 to 100°C and by aging the suspension under such conditions during at least 30 minutes.