公开(公告)号：US07693453B2

公开(公告)日：2010-04-06

申请号：US10545439

申请日：2004-02-13

申请人： Mikio Kakui ,  Koichi Toriyama ,  Kotaro Fukushima ,  Hisayuki Utsumi ,  Sayaka Fujita ,  Akiko Uchino ,  Katsuru Matsumoto

发明人： Mikio Kakui ,  Koichi Toriyama ,  Kotaro Fukushima ,  Hisayuki Utsumi ,  Sayaka Fujita ,  Akiko Uchino ,  Katsuru Matsumoto

IPC分类号： G03G15/00

CPC分类号： G03G15/00 ,  G03G9/0819 ,  G03G21/00

摘要： An image forming apparatus having excellent cleaning property for an electrophotographic photoreceptor and capable of forming a high-quality, high-resolution image. A surface free energy (γ) of a photoreceptor (2), which is provided in the image forming apparatus (1), is set to 20 to 35 mN/m. A volume average diameter of toner particles included in a developer stored in a developing unit (29) to develop an electrostatic latent image and form a toner image is set to 4-7 μm When γ of the photoreceptor (2) is set to within a small range as the particle size of toner is reduced, even small-particle-size toner having increased specific surface area and largely affected by a inter-molecular force is limited in adhesion to the surface of the photoreceptor (2) to provide a good cleaning property and a high-quality image can be formed.

摘要翻译： 一种图像形成装置，具有优异的电子照相感光体的清洁性，能够形成高质量，高分辨率的图像。 设置在图像形成装置（1）中的感光体（2）的表面自由能（γ）设定为20〜35mN / m。 包含在存储在显影单元（29）中以显影静电潜像并形成调色剂图像的显影剂中的显影剂的体积平均直径设定为4-7μm当感光体（2）的γ设定在 随着调色剂的粒径的减小，即使具有增加的比表面积并且受分子间力的很大影响的小粒径调色剂也受限于对感光体（2）的表面的粘附，以提供良好的清洁 财产和高质量的形象可以形成。

公开(公告)号：US07887986B2

公开(公告)日：2011-02-15

申请号：US12188495

申请日：2008-08-08

申请人： Katsuru Matsumoto ,  Keiichi Kikawa ,  Nobuhiro Maezawa

发明人： Katsuru Matsumoto ,  Keiichi Kikawa ,  Nobuhiro Maezawa

IPC分类号： G03G9/08

CPC分类号： G03G9/0806 ,  G03G9/0804

摘要： A method of manufacturing toner particles capable of decreasing the manufacturing costs by simplifying the manufacturing apparatus and by decreasing the number of the steps, as well as to provide toner particles, a two-component developer, a developing apparatus and an image forming apparatus are provided. A high-pressure homogenizer is constituted by a tank, a feed pump, a high-pressure pump, a heat exchanger, a nozzle, a first depressurizing module, a cooling unit, a second depressurizing module and a take-out port arranged in this order. A flow path constituted in the first depressurizing module has a straight portion tilted with respect to a direction in which the aqueous slurry passes and a portion for relaxing the flow of the aqueous slurry.

摘要翻译： 本发明提供一种制造调色剂颗粒的方法，所述调色剂颗粒通过简化制造装置和减少步骤数量以及提供调色剂颗粒，双组分显影剂，显影装置和图像形成装置来降低制造成本。 。 高压均质机由这样构成的罐，进料泵，高压泵，热交换器，喷嘴，第一减压组件，冷却单元，第二减压组件和取出口构成 订购。 构成在第一减压组件中的流路具有相对于水浆流动的方向倾斜的直线部分和用于缓和含水浆料的流动的部分。

公开(公告)号：US07833446B2

公开(公告)日：2010-11-16

申请号：US11882372

申请日：2007-08-01

申请人： Nobuhiro Maezawa ,  Katsuru Matsumoto ,  Keiichi Kikawa

发明人： Nobuhiro Maezawa ,  Katsuru Matsumoto ,  Keiichi Kikawa

IPC分类号： G03G9/08

CPC分类号： B29C67/06

摘要： The aggregated particles are manufactured through a method of manufacturing aggregated particles, which includes an aggregating step, a depressurizing step, and a cooling step. In the aggregating step, a slurry is prepared which contains aggregated particles obtained by flowing an aqueous slurry of resin fine particles having a volume average particle diameter in the range of 0.4 μm to 3 μm through a coiled piping in a heated and pressurized state and thereby aggregating the resin fine particles. In the depressurizing step, the slurry containing the aggregated particles is depressurized, and a particle size control is conducted by disintegrating coarse particles so as to homogenize particle diameters of the aggregated particles. In the cooling step, the slurry containing the aggregated particles of which particle diameters have been homogenized is cooled.

摘要翻译： 聚集颗粒通过制造凝集颗粒的方法制造，其包括聚集步骤，减压步骤和冷却步骤。 在聚集步骤中，制备含有凝集颗粒的浆料，该凝集颗粒通过在加热和加压状态下通过卷取管道使体积平均粒径在0.4μm至3μm范围内的树脂细颗粒的水性浆液流动而获得， 聚集树脂细颗粒。 在减压步骤中，将含有凝集颗粒的浆料减压，并通过粉碎粗颗粒进行粒径控制，使凝聚颗粒的粒径均匀化。 在冷却步骤中，将含有粒径均匀化的凝集粒子的浆料冷却。

公开(公告)号：US20100124441A1

公开(公告)日：2010-05-20

申请号：US12621049

申请日：2009-11-18

申请人： Satoru ARIYOSHI ,  Katsuru Matsumoto

发明人： Satoru ARIYOSHI ,  Katsuru Matsumoto

IPC分类号： G03G15/08 ,  G03G9/08 ,  G03G9/09

CPC分类号： G03G9/081 ,  G03G9/087 ,  G03G9/08775 ,  G03G9/08777 ,  G03G9/08795 ,  G03G9/08797 ,  G03G2215/0604

摘要： A toner containing a lignin resin, a carbon-neutral biomass polymer having a low environmental load and taking global environmental protection into account, as a constitutional component of a binder resin, and having a wide fixing non-offset range and an excellent fixing property, is provided. The toner contains at least a binder resin, a colorant, and a release agent. Furthermore, in the toner, the binder resin includes a resin A that is a lignin resin and a resin B that is another resin component, and the resin B has a peak top molecular weight of 103 to 104 and an acid number of 20 or less.

摘要翻译： 作为粘合剂树脂的构成成分，含有木质素树脂，环境负荷低，全球环境保护的碳中性生物质聚合物的调色剂，具有广泛的定影非偏移范围和良好的定影性， 被提供。 调色剂至少含有粘合剂树脂，着色剂和脱模剂。 此外，在调色剂中，粘合剂树脂包括作为木质素树脂的树脂A和作为其他树脂成分的树脂B，树脂B的峰顶分子量为103〜104，酸值为20以下 。

公开(公告)号：US07659045B2

公开(公告)日：2010-02-09

申请号：US11705504

申请日：2007-02-13

申请人： Yasuhiro Shibai ,  Satoru Ariyoshi ,  Katsuru Matsumoto

发明人： Yasuhiro Shibai ,  Satoru Ariyoshi ,  Katsuru Matsumoto

IPC分类号： G03G9/08

CPC分类号： G03G9/0804 ,  G03G9/08782

摘要： Resin particles containing at least binding resin and wax particles having a diameter of 30 to 600 nm are coagulated, and a resulting coagulated product is heated. Such wax particles are manufactured, for example, by way of a coarse particle preparing step, a slurry preparing step, a pulverizing step, a cooling step, and a depressurizing step. Slurry of wax coarse particles obtained by way of the coarse particle preparing step and the slurry preparing step is directed under heat and pressure through a pressure-resistant nozzle whereby the wax coarse particles are pulverized into the wax particles at the pulverizing step. The cooling step and the depressurizing step are disposed just after the pulverizing step to prevent the wax particles from coarsening.

摘要翻译： 至少含有结合树脂的树脂颗粒和直径为30至600nm的蜡颗粒被凝结，并且所得的凝固产物被加热。 这样的蜡颗粒例如通过粗粒子制备步骤，浆料制备步骤，粉碎步骤，冷却步骤和减压步骤来制造。 通过粗颗粒制备步骤获得的浆料粗颗粒和浆料制备步骤通过耐压喷嘴在加热和压力下进行，从而在粉碎步骤中将蜡粗颗粒粉碎成蜡颗粒。 冷却步骤和减压步骤刚好在粉碎步骤之后设置，以防止蜡颗粒粗大化。

公开(公告)号：US07572566B2

公开(公告)日：2009-08-11

申请号：US11489515

申请日：2006-07-20

申请人： Yasuhiro Shibai ,  Katsuru Matsumoto

发明人： Yasuhiro Shibai ,  Katsuru Matsumoto

IPC分类号： G03G9/08

CPC分类号： G03G9/08711 ,  G03G9/0806

摘要： According to the method of producing toner, toner is produced by (i) forming particles of a pigmented resin by applying shear stress to a mixture of a pigmented resin composition, an organic solvent, a polymer dispersing agent, and a hydrophobic medium, the organic solvent being capable of reducing viscosity of the pigmented resin composition, and said polymer dispersing agent having a glass transition point in a range of 50° C. to 80° C. and an SP value in a range of 8.5 to 10, (ii) distilling off the organic solvent, and (iii) separating the toner from the hydrophobic medium and drying the toner. With the above arrangement, the method makes it possible to (i) easily downsize toner particle without causing thermal decomposition of a resin or separation of a release agent, and (ii) produce toner that is small in particle size, excellent in humidity-resistance, and less likely to aggregate.

摘要翻译： 根据调色剂的制造方法，通过（i）通过对着色树脂组合物，有机溶剂，聚合物分散剂和疏水性介质的混合物施加剪切应力来形成着色树脂颗粒来生产调色剂，有机 溶剂能够降低着色树脂组合物的粘度，所述聚合物分散剂的玻璃化转变点在50℃至80℃的范围内，SP值在8.5至10的范围内，（ii） 蒸馏掉有机溶剂，和（iii）从疏水介质中分离调色剂并干燥调色剂。 通过上述配置，该方法可以（i）容易地使调色剂颗粒小型化而不引起树脂的热分解或脱模剂的分离，（ii）生产粒径小，耐湿性优异的调色剂 ，并且不太可能聚合。

公开(公告)号：US20080311503A1

公开(公告)日：2008-12-18

申请号：US12213263

申请日：2008-06-17

申请人： Ayae Nagaoka ,  Satoru Ariyoshi ,  Tadashi Iwamatsu ,  Katsuru Matsumoto

发明人： Ayae Nagaoka ,  Satoru Ariyoshi ,  Tadashi Iwamatsu ,  Katsuru Matsumoto

IPC分类号： G03G9/087 ,  G03G9/09 ,  G03G9/10

CPC分类号： G03G9/0819 ,  G03G9/0804 ,  G03G9/0827 ,  G03G9/08755

摘要： A toner composed of small particles excellent in a cleaning property, a transferring property, and charge uniformity is provided as well as a method of manufacturing the toner, and two-component developer, developing device, and image forming apparatus using the toner. The toner contains binder resin and colorant, and includes a particle which has an outline having one or more and three or less bending points in its projection image on a plane. The toner thus contains a non-spherical particle and therefore is caught easily by a cleaning blade as well as coming into point-contact with a to-be-transferred member, therefore being capable of having both of cleaning property and transferring property.

摘要翻译： 提供由清洁性，转印性和电荷均匀性优异的小颗粒构成的调色剂的制造方法以及使用调色剂的双组分显影剂，显影装置和图像形成装置。 调色剂含有粘合剂树脂和着色剂，并且包括在平面上的投影图像中具有一个或多个和三个或更少弯曲点的轮廓的颗粒。 因此，调色剂含有非球形颗粒，因此易于被清洁刮板捕获，并且与被转印部件进行点接触，因此能够同时具有清洁性和转印性。

公开(公告)号：US20070259284A1

公开(公告)日：2007-11-08

申请号：US11797143

申请日：2007-05-01

申请人： Yasuhiro Shibai ,  Katsuru Matsumoto

发明人： Yasuhiro Shibai ,  Katsuru Matsumoto

IPC分类号： G03G9/083

CPC分类号： G03G9/09392 ,  G03G9/09321 ,  G03G9/09364 ,  G03G9/09371

摘要： There is provided a capsulated toner which has low-temperature fixing ability, good storage stability, excellent charge stability, high fixing strength to a sheet paper, and low consumption, and is capable of forming a color image of high-definition, high-gloss, and high-density. The capsulated toner for electrophotography includes a shell layer containing a cycloolefin copolymer resin and a core particle including a synthetic resin different from the cycloolefin copolymer resin, wherein the capsulated toner has a core/shell type structure.

摘要翻译： 提供了具有低温定影能力，良好的储存稳定性，优异的电荷稳定性，对纸张的高固定强度和低消耗量的封装调色剂，并且能够形成高清晰，高光泽的彩色图像 ，高密度。 用于电子照相的封装调色剂包括含有环烯烃共聚物树脂的壳层和包含不同于环烯烃共聚物树脂的合成树脂的核心颗粒，其中所述封装调色剂具有核/壳型结构。