公开(公告)号：US06489075B2

公开(公告)日：2002-12-03

申请号：US10060338

申请日：2002-02-01

申请人： Chiaki Suzuki ,  Masahiro Takagi ,  Satoshi Inoue ,  Yosuke Tsurumi ,  Kozo Ota ,  Sakon Takahashi ,  Tomohito Nakajima ,  Atsuhiko Eguchi

发明人： Chiaki Suzuki ,  Masahiro Takagi ,  Satoshi Inoue ,  Yosuke Tsurumi ,  Kozo Ota ,  Sakon Takahashi ,  Tomohito Nakajima ,  Atsuhiko Eguchi

IPC分类号： G03G1316

CPC分类号： G03G9/09725 ,  G03G9/09708

摘要： A toner for developing an electrostatic latent image, a process for producing the same, and a developer for developing an electrostatic latent image using the same are provided, in which the toner flowability, the charging property, the developing property, the transferring property and the fixing property are simultaneously satisfied in a long period of time. The toner for developing an electrostatic latent image comprising a colored particles containing a binder resin, a coloring agent and a releasing agent, and an external additive, the external additive containing a monodisperse spherical inorganic oxide having a true specific gravity of from 1.3 to 1.9 and a volume average particle diameter of from 80 to 300 nm. It is preferred that the inorganic oxide is silica, the colored particles have a shape coefficient of 125 or less, and the external additive further contains a reaction product of metatitanic acid and a coupling agent, which has an electric resistance of 1010 &OHgr;.cm or more.

公开(公告)号：US06479206B1

公开(公告)日：2002-11-12

申请号：US10132145

申请日：2002-04-26

申请人： Chiaki Suzuki ,  Masahiro Takagi ,  Satoshi Inoue ,  Yosuke Tsurumi ,  Kozo Ota ,  Sakon Takahashi ,  Tomohito Nakajima ,  Atsuhiko Eguchi

发明人： Chiaki Suzuki ,  Masahiro Takagi ,  Satoshi Inoue ,  Yosuke Tsurumi ,  Kozo Ota ,  Sakon Takahashi ,  Tomohito Nakajima ,  Atsuhiko Eguchi

IPC分类号： G03G908

CPC分类号： G03G9/09725 ,  G03G9/09708

摘要： A toner for developing an electrostatic latent image, a process for producing the same, and a developer for developing an electrostatic latent image using the same are provided, in which the toner flowability, the charging property, the developing property, the transferring property and the fixing property are simultaneously satisfied in a long period of time. The toner for developing an electrostatic latent image comprising a colored particles containing a binder resin, a coloring agent and a releasing agent, and an external additive, the external additive containing a monodisperse spherical inorganic oxide having a true specific gravity of from 1.3 to 1.9 and a volume average particle diameter of from 80 to 300 nm. It is preferred that the inorganic oxide is silica, the colored particles have a shape coefficient of 125 or less, and the external additive further contains a reaction product of metatitanic acid and a coupling agent, which has an electric resistance of 1010 &OHgr;·cm or more.

公开(公告)号：US06403271B1

公开(公告)日：2002-06-11

申请号：US09583543

申请日：2000-06-01

申请人： Chiaki Suzuki ,  Masahiro Takagi ,  Satoshi Inoue ,  Yosuke Tsurumi ,  Kozo Ota ,  Sakon Takahashi ,  Tomohito Nakajima ,  Atsuhiko Eguchi

发明人： Chiaki Suzuki ,  Masahiro Takagi ,  Satoshi Inoue ,  Yosuke Tsurumi ,  Kozo Ota ,  Sakon Takahashi ,  Tomohito Nakajima ,  Atsuhiko Eguchi

IPC分类号： G03G908

CPC分类号： G03G9/09725 ,  G03G9/09708

摘要： A toner for developing an electrostatic latent image, a process for producing the same, and a developer for developing an electrostatic latent image using the same are provided, in which the toner flowability, the charging property, the developing property, the transferring property and the fixing property are simultaneously satisfied in a long period of time. The toner for developing an electrostatic latent image comprising a colored particles containing a binder resin, a coloring agent and a releasing agent, and an external additive, the external additive containing a monodisperse spherical inorganic oxide having a true specific gravity of from 1.3 to 1.9 and a volume average particle diameter of from 80 to 300 nm. It is preferred that the inorganic oxide is silica, the colored particles have a shape coefficient of 125 or less, and the external additive further contains a reaction product of metatitanic acid and a coupling agent, which has an electric resistance of 1010 &OHgr;·cm or more.

摘要翻译： 提供了用于显影静电潜像的调色剂，其制备方法和使用其的静电潜像显影剂，其中调色剂流动性，带电性，显影性，转印性和 固定性能在长时间内同时得到满足。 用于显影静电潜像的调色剂包括含有粘合剂树脂，着色剂和脱模剂的着色颗粒和外部添加剂，所述外部添加剂含有真比重为1.3至1.9的单分散球形无机氧化物和 体积平均粒径为80〜300nm。 无机氧化物优选为二氧化硅，着色粒子的形状系数为125以下，外部添加剂还含有偏钛酸与偶联剂的反应产物，其电阻为1010欧姆·厘米或 更多。

公开(公告)号：US06746810B2

公开(公告)日：2004-06-08

申请号：US10105255

申请日：2002-03-26

申请人： Chiaki Suzuki ,  Masahiro Takagi ,  Atsuhiko Eguchi ,  Satoshi Inoue ,  Sakon Takahashi ,  Masahiro Uchida ,  Rieko Kataoka ,  Hiroyuki Fukuda ,  Fusako Kiyono ,  Eiji Iwasaki

发明人： Chiaki Suzuki ,  Masahiro Takagi ,  Atsuhiko Eguchi ,  Satoshi Inoue ,  Sakon Takahashi ,  Masahiro Uchida ,  Rieko Kataoka ,  Hiroyuki Fukuda ,  Fusako Kiyono ,  Eiji Iwasaki

IPC分类号： G03G2110

CPC分类号： G03G9/10 ,  G03G9/0827 ,  G03G9/09725 ,  G03G9/1075 ,  G03G9/1132 ,  G03G9/1133 ,  G03G9/1134 ,  G03G9/1135

摘要： An image formation method which remarkably extends developer life while providing size reduction and high speed coloring. Also, a replenishing toner and a method of producing the same, and a toner cartridge. In the image formation method, conducting image formation by an image formation apparatus having a plurality of xerography units, the developer apparatus of at least one xerography unit has a developer recovering mechanism appropriately replenishing a replenishing toner composed of a toner and a carrier into the developer apparatus and recovering an excess portion of a developer from the equipment. The above-mentioned replenishing toner has a carrier content in the range of 5 to 40% by weight, the above-mentioned carrier is a carrier coated with a resin having a specific composition, and/or the above-mentioned toner is in a specific shape. The replenishing toner may be produced using the above-mentioned recovered developer.

摘要翻译： 一种图像形成方法，其显着延长显影剂寿命，同时提供尺寸减小和高速着色。 此外，补充调色剂及其制造方法以及调色剂盒。 在图像形成方法中，通过具有多个静电复印单元的图像形成装置进行图像形成，至少一个静电复印单元的显影装置具有显影剂回收机构，适当地将由调色剂和载体构成的补充调色剂补充到显影剂中 从设备中回收多余的显影剂。 上述补充调色剂的载体含量在5-40重量％的范围内，上述载体是涂覆有具有特定组成的树脂的载体，和/或上述调色剂是特定的 形状。 可以使用上述回收的显影剂来制造补充调色剂。

公开(公告)号：US06673502B2

公开(公告)日：2004-01-06

申请号：US09977300

申请日：2001-10-16

申请人： Sakon Takahashi ,  Hiroshi Nakazawa ,  Tomohito Nakajima ,  Masahiro Takagi ,  Atsuhiko Eguchi

发明人： Sakon Takahashi ,  Hiroshi Nakazawa ,  Tomohito Nakajima ,  Masahiro Takagi ,  Atsuhiko Eguchi

IPC分类号： G03G9113

CPC分类号： G03G9/1134

摘要： A carrier for the development of an electrostatic latent image, comprising a core material and a resin coating the core material therewith, wherein the coating resin comprises a copolymer of at least four kinds of monomers including: (1) a monomer containing a carboxyl group; (2) an acrylic acid alkylester monomer or methacrylic acid alkylester monomer, containing a C1-C3 linear alkyl group; (3) an acrylic acid alkylester monomer or methacrylic acid alkylester monomer, containing a C4-C10 linear alkyl group or C3-C10 branched alkyl group; and (4) a monomer containing fluorine. Also disclosed is a two-component developer for the development of an electrostatic latent image, comprising a toner and the carrier.

摘要翻译： 一种用于显影静电潜像的载体，包括芯材和涂覆芯材的树脂，其中涂料树脂包含至少四种单体的共聚物，包括：（1）含羧基的单体; （2）含有C 1 -C 3直链烷基的丙烯酸烷基酯单体或甲基丙烯酸烷基酯单体; （3）含有C 4 -C 10直链烷基或C 3 -C 10支链烷基的丙烯酸烷基酯单体或甲基丙烯酸烷基酯单体; 和（4）含氟的单体。 还公开了用于显影静电潜像的双组分显影剂，其包括调色剂和载体。

公开(公告)号：US06613491B2

公开(公告)日：2003-09-02

申请号：US10003088

申请日：2001-12-06

申请人： Satoshi Inoue ,  Masahiro Takagi ,  Kaori Ohishi ,  Rieko Kataoka ,  Fusako Kiyono ,  Atsuhiko Eguchi ,  Chiaki Suzuki

发明人： Satoshi Inoue ,  Masahiro Takagi ,  Kaori Ohishi ,  Rieko Kataoka ,  Fusako Kiyono ,  Atsuhiko Eguchi ,  Chiaki Suzuki

IPC分类号： G03G908

CPC分类号： G03G9/09725 ,  G03G9/0827 ,  G03G9/09708 ,  G03G9/09716

摘要： In an electrophotographic developer and a process for forming an image, an electrophotographic toner used therein contains spherical toner parent particles and two or more kinds of inorganic particles having different average particle diameters, at least one kind of the inorganic fine particles being spherical particles having an average primary particle diameter of about 80 to 300 nm, and the inorganic particles containing the spherical particles being attached to the toner parent particles to provide a structure satisfying the following conditions (1) and (2): (1) the spherical particles have a coverage on a surface of the toner parent particles of about 20% or more; and (2) a proportion of the inorganic particles that are separated from the toner parent particles upon dispersing the toner in an aqueous solution is about 35% or less of a total addition amount of the inorganic particles.

摘要翻译： 在电子照相显影剂和形成图像的方法中，其中使用的电子照相调色剂含有球形调色剂母体颗粒和两种或更多种具有不同平均粒径的无机颗粒，至少一种无机细颗粒是具有 平均一次粒径为约80〜300nm，将含有球状粒子的无机粒子附着在调色剂母粒上，得到满足下述条件（1）和（2）的结构：（1）球状粒子具有 调色剂母粒子表面上的覆盖率为约20％以上; 和（2）将调色剂分散在水溶液中时与调色剂母体颗粒分离的无机颗粒的比例为无机颗粒总添加量的约35％以下。

公开(公告)号：US5908726A

公开(公告)日：1999-06-01

申请号：US934855

申请日：1997-09-22

申请人： Satoshi Inoue ,  Chiaki Suzuki ,  Atsuhiko Eguchi

发明人： Satoshi Inoue ,  Chiaki Suzuki ,  Atsuhiko Eguchi

IPC分类号： G03G9/08 ,  G03G9/083 ,  G03G9/087 ,  G03G15/08

CPC分类号： G03G9/08755 ,  G03G9/0837 ,  G03G9/08704

摘要： An electrophotographic toner includes a binder resin including a linear polyester such as a polyester formed by condensation of an ethylene oxide adduct of a bisphenole A with a terephthalic acid, and a non-linear polyester such as a polyester formed by condensation of a mixture of an ethylene oxide adduct of a bisphenole A and a glycerin with a terephthalic acid; and, as a magnetic substance, a polyhedral magnetite of not more facets than a hexacosahedron and not less facets than a decahedron. The toner has an excellent fixing property at low temperature, an anti-offset property and a wide fixing latitude.

摘要翻译： 电子照相调色剂包括粘合剂树脂，其包括线性聚酯，例如通过双酚A的环氧乙烷加成物与对苯二甲酸的缩合形成的聚酯，以及非线性聚酯，例如通过将 双酚A和甘油与对苯二甲酸的环氧乙烷加成物; 并且作为磁性物质，不如六面体具有更多小面的多面磁体，并且不如十面体那样小。 该调色剂在低温下具有优异的定影性能，抗偏移性和宽的固定宽度。

公开(公告)号：US06268099B1

公开(公告)日：2001-07-31

申请号：US08861738

申请日：1997-05-22

申请人： Atsuhiko Eguchi ,  Chiaki Suzuki ,  Takayoshi Aoki

发明人： Atsuhiko Eguchi ,  Chiaki Suzuki ,  Takayoshi Aoki

IPC分类号： G03G9097

CPC分类号： G03G9/08782 ,  G03G9/08706 ,  G03G9/08708 ,  G03G9/08711 ,  G03G9/1132

摘要： Disclosed herein are a toner comprising a binder resin, a coloring agent, and, as a lubricant, a polyethylene wax having a penetration of 5 to 12 dmm and a melt viscosity of less than or equal to 1.5 at 130° C., a process for the preparation thereof, a developer using the toner, and a method of forming images using the toner. According to the present invention, incomplete images in the transfer process can be prevented; excellent flowability is provided and the blocking phenomenon can be prevented; the transfer process can be carried out with less electric consumption. The offset resistance is also good, and the releasability is effectively exhibited at lower temperatures.

摘要翻译： 本文公开了一种调色剂，其包含粘合剂树脂，着色剂和作为润滑剂的在130℃下具有5至12dmm的渗透性和小于或等于1.5的熔体粘度的聚乙烯蜡， 为了制备它们，使用调色剂的显影剂，以及使用调色剂形成图像的方法。 根据本发明，可以防止转印过程中的不完整图像; 提供优异的流动性并且可以防止阻塞现象; 转移过程可以用较少的电力消耗进行。 耐偏移性也良好，并且在较低温度下有效显示脱模性。

公开(公告)号：US5928825A

公开(公告)日：1999-07-27

申请号：US668447

申请日：1996-06-21

申请人： Atsuhiko Eguchi ,  Hideki Sakai ,  Takeo Kigami ,  Chiaki Suzuki ,  Takayoshi Aoki

发明人： Atsuhiko Eguchi ,  Hideki Sakai ,  Takeo Kigami ,  Chiaki Suzuki ,  Takayoshi Aoki

IPC分类号： G03G9/087 ,  G03G9/097

CPC分类号： G03G9/08782

摘要： A toner for developing electrostatic latent images containing a binder resin, a colorant, and a lubricant, wherein the lubricant comprises a modified polyethylene wax which is obtained by homopolymerizing ethylene or copolymerizing ethylene and an .alpha.-olefin having 3 to 10 carbon atoms in the presence of a metallocene catalyst and modifying the resulting homo- or copolymer by grafting thereto a styrene monomer and/or an unsaturated carboxylic acid monomer, the lubricant having a hexane extraction of not more than 65% by weight. The toner exhibits release properties at a lower temperature and thereby has satisfactory anti-offset properties without impairing powder fluidity and anti-blocking properties. It provides a toner image resistant against scratches by a peeling claw of a fixing roll part and against rub-of.

摘要翻译： 用于显影含有粘合剂树脂，着色剂和润滑剂的静电潜像的调色剂，其中所述润滑剂包含改性聚乙烯蜡，其通过在乙烯存在下均聚乙烯或共聚乙烯和具有3至10个碳原子的α-烯烃而获得 的茂金属催化剂，并通过与苯乙烯单体和/或不饱和羧酸单体接枝来改性所得到的均聚物或共聚物，所述润滑剂的己烷萃取不超过65重量％。 调色剂在较低温度下具有脱模性能，因此具有令人满意的抗粘合性能，而不损害粉末流动性和防粘连性。 它提供了抵抗由定影辊部分的剥离爪划伤并抵抗擦伤的调色剂图像。

公开(公告)号：US20050164109A1

公开(公告)日：2005-07-28

申请号：US10935134

申请日：2004-09-08

申请人： Akihiro Iizuka ,  Atsuhiko Eguchi ,  Masahiro Okita ,  Yasuhiro Oya

发明人： Akihiro Iizuka ,  Atsuhiko Eguchi ,  Masahiro Okita ,  Yasuhiro Oya

IPC分类号： G03G9/08 ,  G03G9/097

CPC分类号： G03G9/09733 ,  G03G9/0827 ,  G03G9/097

摘要： The invention provides a toner for developing electrostatic charged images comprising toner mother particles containing a binder resin and a colorant, and an external additive, wherein: the average of shape factors SF1 of the toner mother particles represented by the following Formula (1) is 140 or less; the external additive contains higher alcohol particles having a volume-average particle diameter of 1 to 12 μm; and the content of the higher alcohol particles having a diameter equal to or less than the volume-average particle diameter of the toner mother particles is in a range of 0.15 to 2.5 parts by weight with respect to 100 parts by weight of the toner mother particles. In addition, the invention provides a developer for developing electrostatic charged images comprising the toner. Further, the invention provides an image forming method using the toner.

摘要翻译： 本发明提供一种用于显影静电荷图像的调色剂，其包含含有粘合剂树脂和着色剂的调色剂母粒子和外部添加剂，其中：由下式（1）表示的调色剂母粒子的形状因子SF1的平均值为140 或更少; 外部添加剂含有体积平均粒径为1〜12μm的高级醇粒子; 相对于100重量份的调色剂母粒子，直径等于或小于调色剂母粒的体积平均粒径的高级醇粒子的含量在0.15〜2.5重量份的范围内 。 此外，本发明提供了一种显影剂，用于显影包含调色剂的静电荷图像。 此外，本发明提供了一种使用调色剂的成像方法。