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    • 42. 发明授权
    • Electrophotographic carrier, method of manufacturing the same, and image forming method employing the same
    • 电子照相载体及其制造方法以及使用其的成像方法
    • US07879521B2
    • 2011-02-01
    • US11755957
    • 2007-05-31
    • Hiroyuki KozuruYoshiaki KobayashiTatsuya Nagase
    • Hiroyuki KozuruYoshiaki KobayashiTatsuya Nagase
    • G03G9/00
    • G03G15/0818G03G9/113G03G9/1131G03G9/1138G03G9/1139
    • An objective is to provide a highly durable carrier for a developer which is capable of forming a high-definition image stably with no deterioration of a developing property since the carrier resistance and the charging ability remain stable even though the developer is used for a long duration; a method of manufacturing the carrier; and an image forming method employing the same. Disclosed is an electrophotographic carrier comprising a carrier core material and provided thereon, a resin-coated layer comprising charge control particles and low-resistive particles, wherein an initial carrier resistance is 5×108-3×1010 Ωcm; a concentration of the low-resistive particles grows higher toward a surface of the layer from an inner part of the layer; and a concentration of the charge control particles grows lower toward a surface of the layer from an inner part of the layer.
    • 目的是为显影剂提供高度耐用的载体,其能够稳定地形成高清晰度图像,而不会劣化显影性能,因为即使长时间使用显影剂,载体电阻和充电能力保持稳定 ; 制造载体的方法; 以及采用该图像形成方法的图像形成方法。 公开了一种电子照相载体,其包含载体芯材料,其上设置有包含电荷控制颗粒和低电阻颗粒的树脂涂层,其中初始载流子电阻为5×108-3×1010Ω·cm; 低电阻粒子的浓度从层的内部向层的表面生长较高; 并且电荷控制颗粒的浓度从该层的内部朝向该层的表面生长较低。
    • 46. 发明授权
    • Image forming method and image forming apparatus
    • 图像形成方法和图像形成装置
    • US5766816A
    • 1998-06-16
    • US758958
    • 1996-12-02
    • Tatsuya NagaseYoshiki NishimoriMeizo Shirose
    • Tatsuya NagaseYoshiki NishimoriMeizo Shirose
    • G03G9/087G03G13/20G03G15/20
    • G03G9/08711G03G13/20G03G15/2025G03G9/08755G03G2215/2093
    • An image forming method comprises the step of a) developing an electrostatic latent image with toner; b) transferring the developed image onto a recording material to obtain a toner image on the recording material; and c) passing the recording material with the toner image between a first member and a second member positioned against the first member to fix the toner on the recording material, a silicone oil having been coated on the surface of at least one of the members, the toner containing a blend of a cross-linked polyester resin and a styrene/acryl resin, wherein the MEK insoluble component content of the toner is 40 to 65 weight %, the MEK soluble component of the toner has a weight average molecular weight Mw of 5.times.10.sup.4 to 2.times.10.sup.5, a number average molecular weight Mn of 1.times.10.sup.3 to 2.times.10.sup.3 and Mw/Mn of 25 to 80, and the silicone oil is a fluorine-containing silicone oil having a structure unit represented by the following Formula (I): ##STR1##
    • 图像形成方法包括以下步骤:a)用调色剂显影静电潜像; b)将显影的图像转印到记录材料上以获得记录材料上的调色剂图像; 以及c)使具有调色剂图像的记录材料在位于第一构件之间的第一构件和第二构件之间通过,以将调色剂固定在记录材料上,已经涂覆在至少一个构件的表面上的硅油, 该调色剂含有交联聚酯树脂和苯乙烯/丙烯酸树脂的共混物,其中调色剂的MEK不溶组分含量为40-65重量%,调色剂的MEK可溶组分的重均分子量Mw为 5×104〜2×105,数均分子量Mn为1×103〜2×103,Mw / Mn为25〜80,所述硅油为具有下式(I)表示的结构单元的含氟硅油:
    • 50. 发明授权
    • Electrostatic image developing toner and producing method of the same
    • 静电图像显影调色剂及其制备方法
    • US08586278B2
    • 2013-11-19
    • US13272558
    • 2011-10-13
    • Mikihiko SukenoHajime TadokoroKen OhmuraTatsuya NagaseTomomi OshibaKenji HayashiSaburou HiraokaTomoko Mine
    • Mikihiko SukenoHajime TadokoroKen OhmuraTatsuya NagaseTomomi OshibaKenji HayashiSaburou HiraokaTomoko Mine
    • G03G9/093
    • G03G9/08755G03G9/0806G03G9/08793G03G9/08797G03G9/09321G03G9/09328G03G9/09371G03G9/09392
    • A method of producing an electrostatic image developing toner comprising toner particles comprising a binder resin containing at least a non-crystalline polyester resin having a crosslinking structure and a crystalline polyester resin, the method comprising the steps of (a-1) preparing a crystalline polyester resin particle aqueous dispersion liquid; (a-2) preparing a polymerizable unsaturated non-crystalline polyester resin aqueous dispersion liquid; (b) preparing crosslinking non-crystalline polyester resin particles by adding a radical polymerization initiator to the aqueous dispersion liquid of particles containing the non-crystalline polyester resin having a polymerizable unsaturated bond; (c) preparing core particles by aggregating at least the particles containing the crystalline polyester resin in an aqueous medium; and (d) preparing a shell layer containing the non-crystalline polyester resin having a crosslinking structure by fusing the particles containing the non-crystalline polyester resin having a crosslinking structure on surfaces of the core particles in an aqueous medium.
    • 一种静电图像显影调色剂的制造方法,其包含调色剂颗粒,所述调色剂颗粒包含至少含有具有交联结构的非结晶性聚酯树脂和结晶性聚酯树脂的粘合剂树脂,所述方法包括以下步骤:(a-1)制备结晶聚酯 树脂颗粒水分散液; (a-2)制备聚合性不饱和非结晶性聚酯树脂水性分散液; (b)通过向包含具有聚合性不饱和键的非结晶性聚酯树脂的粒子的水性分散液中添加自由基聚合引发剂来制备交联的非结晶性聚酯树脂粒子; (c)通过在水性介质中至少聚集含有结晶性聚酯树脂的颗粒来制备芯颗粒; 和(d)通过在水性介质中将含有具有交联结构的非结晶性聚酯树脂的颗粒在芯颗粒的表面上熔融来制备含有具有交联结构的非结晶性聚酯树脂的壳层。