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：US08877419B2

公开(公告)日：2014-11-04

申请号：US11504685

申请日：2006-08-16

申请人： Satoshi Inoue ,  Koutarou Yoshihara ,  Yosuke Tsurumi ,  Moegi Iguchi ,  Masahiro Takagi

发明人： Satoshi Inoue ,  Koutarou Yoshihara ,  Yosuke Tsurumi ,  Moegi Iguchi ,  Masahiro Takagi

IPC分类号： G03G13/14 ,  G03G9/113 ,  G03G15/01

CPC分类号： G03G15/0126 ,  G03G2215/0119 ,  G03G2215/0158

摘要： The present invention provides a composite color image forming method. The method includes electrically charging a latent image-holding member; exposing the charged latent image-holding member to light to form an electrostatic latent image; developing the electrostatic latent image with a two-component developer containing toner particles of one color and a carrier to form a toner image on the latent image-holding member; primarily transferring the toner image from the latent image-holding member to an intermediate transfer member; repeating the electrically charging, the exposing, the developing, and the primarily transferring, while the toner particles are replaced with toner particles of different color, to form a composite color image on the intermediate transfer member; and secondarily transferring the composite color image from the intermediate transfer member to a recording medium. The carrier contains magnetic substance-dispersed core particles in which a magnetic substance is dispersed in a resin, and a coating layer that coats the surface of each of the magnetic substance-dispersed core particles at a covering rate of 95% or more. In addition, the carrier has a degree of circularity of 0.970 or more. The intermediate transfer member is a belt that has a substrate whose Young's modulus is in the range of 3,000 to 6,500 MPa. During the primary transferring, primary transfer nip pressure is in the range of 8 to 20 gf/cm, and a value (T/P) obtained by dividing a primary transfer current value T (μA) by a processing speed P (mm/sec) is from 0.08 to 0.18.

摘要翻译： 本发明提供一种复合彩色图像形成方法。 该方法包括对潜像保持部件进行充电; 将带电潜象保持部件曝光，形成静电潜像; 用含有一种颜色的调色剂颗粒和载体的双组分显影剂显影静电潜像，以在潜像保持构件上形成调色剂图像; 主要将调色剂图像从潜像保持部件转印到中间转印部件; 在调色剂颗粒被不同颜色的调色剂颗粒代替时，重复进行充电，曝光，显影和主要转印，以在中间转印部件上形成复合彩色图像; 然后将复合彩色图像从中间转印部件转印到记录介质上。 载体包含磁性物质分散的核心颗粒，其中磁性物质分散在树脂中，以及涂覆层以覆盖率95％或更高覆盖每个磁性物质分散的核心颗粒的表面。 此外，载体的圆形度为0.970以上。 中间转印部件是具有杨氏模量在3,000〜6,500MPa范围内的基板的带。 在一次转印期间，一次转印辊隙压力在8至20gf / cm的范围内，并且通过将一次转印电流值T（μA）除以处理速度P（mm / sec）而获得的值（T / P） ）为0.08〜0.18。

公开(公告)号：US20070172748A1

公开(公告)日：2007-07-26

申请号：US11504685

申请日：2006-08-16

申请人： Satoshi Inoue ,  Koutarou Yoshihara ,  Yosuke Tsurumi ,  Moegi Iguchi ,  Masahiro Takagi

发明人： Satoshi Inoue ,  Koutarou Yoshihara ,  Yosuke Tsurumi ,  Moegi Iguchi ,  Masahiro Takagi

IPC分类号： G03G15/01

CPC分类号： G03G15/0126 ,  G03G2215/0119 ,  G03G2215/0158

摘要： The present invention provides a composite color image forming method. The method includes electrically charging a latent image-holding member; exposing the charged latent image-holding member to light to form an electrostatic latent image; developing the electrostatic latent image with a two-component developer containing toner particles of one color and a carrier to form a toner image on the latent image-holding member; primarily transferring the toner image from the latent image-holding member to an intermediate transfer member; repeating the electrically charging, the exposing, the developing, and the primarily transferring, while the toner particles are replaced with toner particles of different color, to form a composite color image on the intermediate transfer member; and secondarily transferring the composite color image from the intermediate transfer member to a recording medium. The carrier contains magnetic substance-dispersed core particles in which a magnetic substance is dispersed in a resin, and a coating layer that coats the surface of each of the magnetic substance-dispersed core particles at a covering rate of 95% or more. In addition, the carrier has a degree of circularity of 0.970 or more. The intermediate transfer member is a belt that has a substrate whose Young's modulus is in the range of 3,000 to 6,500 MPa. During the primary transferring, primary transfer nip pressure is in the range of 8 to 20 gf/cm, and a value (T/P) obtained by dividing a primary transfer current value T (μA) by a processing speed P (mm/sec) is from 0.08 to 0.18.

摘要翻译： 本发明提供一种复合彩色图像形成方法。 该方法包括对潜像保持部件进行充电; 将带电潜象保持部件曝光，形成静电潜像; 用含有一种颜色的调色剂颗粒和载体的双组分显影剂显影静电潜像，以在潜像保持构件上形成调色剂图像; 主要将调色剂图像从潜像保持部件转印到中间转印部件; 在调色剂颗粒被不同颜色的调色剂颗粒代替时，重复进行充电，曝光，显影和主要转印，以在中间转印部件上形成复合彩色图像; 然后将复合彩色图像从中间转印部件转印到记录介质上。 载体包含磁性物质分散的核心颗粒，其中磁性物质分散在树脂中，以及涂覆层以覆盖率95％或更高覆盖每个磁性物质分散的核心颗粒的表面。 此外，载体的圆形度为0.970以上。 中间转印部件是具有杨氏模量在3,000〜6,500MPa范围内的基板的带。 在初次转印期间，一次转印夹持压力在8〜20gf / cm的范围内，通过将一次转印电流值T（muA）除以处理速度P（mm / sec）而得到的值（T / P） ）为0.08〜0.18。

公开(公告)号：US20070243479A1

公开(公告)日：2007-10-18

申请号：US11581031

申请日：2006-10-16

申请人： Koutarou Yoshihara ,  Masahiro Takagi ,  Satoshi Inoue ,  Yosuke Tsurumi ,  Moegi Iguchi

发明人： Koutarou Yoshihara ,  Masahiro Takagi ,  Satoshi Inoue ,  Yosuke Tsurumi ,  Moegi Iguchi

IPC分类号： G03G9/113 ,  G03G9/107

CPC分类号： G03G9/1131 ,  G03G9/10 ,  G03G9/107 ,  G03G9/1075 ,  G03G9/1132

摘要： An electrostatic latent image carrier having core particles and a resin coating layer that coats the surface of the core particles, wherein the surface roughness of the core particles exhibits a surface roughness Sm that satisfies the expression Sm≦2.0 μm and a surface roughness Ra (compliant with JIS B0601) that satisfies the expression Ra≧0.1 μm, the surface roughness Ra (compliant with JIS B0601) of the electrostatic latent image carrier satisfies the expression Ra≦0.5 μm, and a sphericity of the electrostatic latent image carrier is 0.975 or higher. In addition, an electrostatic latent image developer that includes a toner and a carrier, wherein the carrier is the electrostatic latent image carrier described above.

摘要翻译： 具有芯颗粒的静电潜像载体和涂覆芯颗粒表面的树脂涂层，其中芯颗粒的表面粗糙度表现出满足表达式Sm <=2.0μm的表面粗糙度Sm和表面粗糙度Ra（ 符合JIS B0601）满足Ra> =0.1μm的表达式，静电潜像载体的表面粗糙度Ra（符合JIS B0601）满足Ra <=0.5μm的表达式，静电潜像载体的球形度为 0.975以上。 另外，包括调色剂和载体的静电潜像显影剂，其中载体是上述的静电潜像载体。

公开(公告)号：US07588874B2

公开(公告)日：2009-09-15

申请号：US10916619

申请日：2004-08-12

申请人： Kazufumi Tomita ,  Yosuke Tsurumi ,  Shuji Sato ,  Akira Matsumoto ,  Hiroshi Nakazawa

发明人： Kazufumi Tomita ,  Yosuke Tsurumi ,  Shuji Sato ,  Akira Matsumoto ,  Hiroshi Nakazawa

IPC分类号： G03G9/08

CPC分类号： G03G9/08782 ,  G03G9/0819 ,  G03G9/0821 ,  G03G9/09708

摘要： A toner for developing an electrostatic image is provided, which contains at least a binder resin, a colorant and a releasing agent, the releasing agent, has an endothermic peak temperature measured by a differential scanning calorimeter of from 60 to 100° C., and an endothermic amount a of the releasing agent per unit weight (J/g) at temperatures equal to or lower than a glass transition onset temperature of the binder resin measured by a differential scanning calorimeter, a total endothermic amount b of the releasing agent per unit weight (J/g) and a volume average particle diameter c(μm) of the toner has the relationship: 0.05≦(a/b)×c≦0.6.

摘要翻译： 提供了用于显影静电图像的调色剂，其至少包含粘合剂树脂，着色剂和脱模剂，脱模剂具有通过差示扫描量热计测量的吸热峰值温度为60至100℃，以及 在等于或低于通过差示扫描量热计测量的粘合剂树脂的玻璃化转变起始温度的温度下每单位重量的脱模剂的吸热量a（J / g），每单位的脱模剂的总吸热量b 调色剂的重量（J / g）和体积平均粒径c（母体）具有如下关系：0.05 <=（a / b）×c <= 0.6。

公开(公告)号：US07575841B2

公开(公告)日：2009-08-18

申请号：US11294669

申请日：2005-12-06

申请人： Katsumi Daimon ,  Kazufumi Tomita ,  Moegi Iguchi ,  Yasuo Matsumura ,  Yusuke Ikeda ,  Shigeru Hayashi ,  Shuji Sato ,  Takashi Imai ,  Yosuke Tsurumi ,  Hiroshi Nakazawa

发明人： Katsumi Daimon ,  Kazufumi Tomita ,  Moegi Iguchi ,  Yasuo Matsumura ,  Yusuke Ikeda ,  Shigeru Hayashi ,  Shuji Sato ,  Takashi Imai ,  Yosuke Tsurumi ,  Hiroshi Nakazawa

IPC分类号： G03G9/087 ,  G03G9/093

CPC分类号： G03G9/09328 ,  G03G9/09371 ,  G03G9/09378

摘要： The present invention provides a toner for electrophotography having a capsule structure including a core and a shell that covers the core, wherein the core contains a colorant, a releasing agent, an amorphous resin, and a block polymer containing a crystalline part and an amorphous part, the weight-average molecular weight of the block polymer is 10,000 or more, the weight-average molecular weight of the resin used in formation of the amorphous part of the block polymer is 1000 to 5000, and the weight-average molecular weight of the resin used in formation of the crystalline part of the block polymer is at least 2 times the weight-average molecular weight of the resin used in formation of the amorphous part of the block polymer, a method of manufacturing the same, a developer for electrophotography including the toner and a carrier, and an image forming method using the developer for electrophotography.

摘要翻译： 本发明提供一种具有胶囊结构的电子照相用调色剂，该胶囊结构包括芯和覆盖该芯的壳，其中芯包含着色剂，脱模剂，无定形树脂和含有结晶部分和非晶部分的嵌段聚合物 嵌段聚合物的重均分子量为10,000以上时，形成嵌段聚合物的非晶部分时使用的树脂的重均分子量为1000〜5000，重均分子量 用于形成嵌段聚合物的结晶部分的树脂是形成嵌段聚合物的非晶部分时使用的树脂的重均分子量的至少2倍，其制造方法，电子照相用显影剂，包括 调色剂和载体，以及使用电子照相显影剂的图像形成方法。

公开(公告)号：US07432030B2

公开(公告)日：2008-10-07

申请号：US11079646

申请日：2005-03-15

申请人： Yosuke Tsurumi ,  Akira Matsumoto ,  Mayuko Uda ,  Hiroshi Nakazawa ,  Kazufumi Tomita

发明人： Yosuke Tsurumi ,  Akira Matsumoto ,  Mayuko Uda ,  Hiroshi Nakazawa ,  Kazufumi Tomita

IPC分类号： G03G9/08

CPC分类号： G03G9/0819 ,  G03G9/0821 ,  G03G9/08704 ,  G03G9/08782 ,  G03G9/08795 ,  G03G9/08797

摘要： A toner for developing an electrostatic latent image includes a binder resin, a colorant and a releasing agent. The releasing agent contains a hydrocarbon component including a linear hydrocarbon component, and the liner hydrocarbon component has a carbon number distribution and an average carbon number N. An amount of a component having a carbon number of from N−4 to N+4 in the releasing agent is 80% by mass or more based on the total mass of the hydrocarbon component of the releasing agent. An amount of a component having a carbon number of N−10 or less in the releasing agent is 0.05% by mass or less based on the total mass of the hydrocarbon component of the releasing agent, and an amount of a component having a carbon number of N+10 or more in the releasing agent is 0.05% by mass or less based on the total mass of the hydrocarbon component of the releasing agent.

摘要翻译： 用于显影静电潜像的调色剂包括粘合剂树脂，着色剂和脱模剂。 脱模剂含有包含直链烃组分的烃组分，并且所述衬里烃组分具有碳数分布和平均碳数N.在所述碳数为N-4至N + 4的组分的量为 基于脱模剂的烃成分的总质量，脱模剂为80质量％以上。 脱模剂中碳数为N-10以下的成分的量相对于脱模剂的烃成分的总质量为0.05质量％以下，碳数为 的脱模剂中的N + 10以上为0.05质量％以下。

公开(公告)号：US20070048647A1

公开(公告)日：2007-03-01

申请号：US11294669

申请日：2005-12-06

申请人： Katsumi Daimon ,  Kazufumi Tomita ,  Moegi Iguchi ,  Yasuo Matsumura ,  Yusuke Ikeda ,  Shigeru Hayashi ,  Shuji Sato ,  Takashi Imai ,  Yosuke Tsurumi ,  Hiroshi Nakazawa

发明人： Katsumi Daimon ,  Kazufumi Tomita ,  Moegi Iguchi ,  Yasuo Matsumura ,  Yusuke Ikeda ,  Shigeru Hayashi ,  Shuji Sato ,  Takashi Imai ,  Yosuke Tsurumi ,  Hiroshi Nakazawa

IPC分类号： G03G9/093

CPC分类号： G03G9/09328 ,  G03G9/09371 ,  G03G9/09378

摘要： The present invention provides a toner for electrophotography having a capsule structure including a core and a shell that covers the core, wherein the core contains a colorant, a releasing agent, an amorphous resin, and a block polymer containing a crystalline part and an amorphous part, the weight-average molecular weight of the block polymer is 10,000 or more, the weight-average molecular weight of the resin used in formation of the amorphous part of the block polymer is 1000 to 5000, and the weight-average molecular weight of the resin used in formation of the crystalline part of the block polymer is at least 2 times the weight-average molecular weight of the resin used in formation of the amorphous part of the block polymer, a method of manufacturing the same, a developer for electrophotography including the toner and a carrier, and an image forming method using the developer for electrophotography.

摘要翻译： 本发明提供一种具有胶囊结构的电子照相用调色剂，该胶囊结构包括芯和覆盖该芯的壳，其中芯包含着色剂，脱模剂，无定形树脂和含有结晶部分和非晶部分的嵌段聚合物 嵌段聚合物的重均分子量为10,000以上时，形成嵌段聚合物的非晶部分时使用的树脂的重均分子量为1000〜5000，重均分子量 用于形成嵌段聚合物的结晶部分的树脂是形成嵌段聚合物的非晶部分时使用的树脂的重均分子量的至少2倍，其制造方法，电子照相用显影剂，包括 调色剂和载体，以及使用电子照相显影剂的图像形成方法。