公开(公告)号：US08580473B2

公开(公告)日：2013-11-12

申请号：US13157060

申请日：2011-06-09

申请人： Satoru Ariyoshi ,  Yasuhiro Shibai ,  Nobuhiro Maezawa ,  Katsuru Matsumoto

发明人： Satoru Ariyoshi ,  Yasuhiro Shibai ,  Nobuhiro Maezawa ,  Katsuru Matsumoto

IPC分类号： G03G9/087

CPC分类号： G03G9/08755 ,  G03G9/081 ,  G03G9/08748 ,  G03G9/08775 ,  G03G9/08795 ,  G03G9/08797

摘要： A toner includes a binder resin and a colorant. The binder resin contains a polyester resin A obtained by subjecting aromatic dicarboxylic acid, rosin, and trivalent or higher-valent alcohol as starting materials to polycondensation, a content of the rosin in a sum of the starting materials being 60% by weight or more, and a polyester resin B obtained by subjecting aromatic dicarboxylic acid and polyhydric alcohol as starting materials to polycondensation, the polyester resin B having a viscosity of 103 Pa·s or more and 105 Pa·s or less at a softening temperature of the polyester resin A, the polyester resin B being contained in an amount of 50 parts by weight or more and 200 parts by weight or less relative to 100 parts by weight of the polyester resin A.

摘要翻译： 调色剂包括粘合剂树脂和着色剂。 粘合剂树脂含有通过使芳族二羧酸，松香和三价以上的醇作为起始原料进行缩聚得到的聚酯树脂A，原料的总量为60重量％以上的松香含量， 和通过使芳族二羧酸和多元醇作为原料进行缩聚得到的聚酯树脂B，聚酯树脂B在聚酯树脂A的软化温度下的粘度为103Pa·s以上且105Pa·s以下 相对于100重量份的聚酯树脂A，聚酯树脂B的含量为50重量份以上且200重量份以下。

公开(公告)号：US08187783B2

公开(公告)日：2012-05-29

申请号：US12167021

申请日：2008-07-02

申请人： Keiichi Kikawa ,  Yasuhiro Shibai ,  Katsuru Matsumoto

发明人： Keiichi Kikawa ,  Yasuhiro Shibai ,  Katsuru Matsumoto

IPC分类号： G03G9/087

CPC分类号： G03G9/081 ,  G03G9/0819 ,  G03G9/0821 ,  G03G9/08782 ,  G03G9/09741 ,  G03G9/0975

摘要： A method of manufacturing a toner in which uneven distribution of toner ingredients by subjecting them to fine dispersion is prevented and which is excellent in transferability, cleaning properties, anti-filming properties, anti-blocking properties, high-temperature offset resisting properties and transparency is provided. Melt-kneaded substances include binder resins, colorants and release agents, respectively. The colorant and the release agent are dispersed in the binder resin. The melt-kneaded substance is negatively charged by an anionic dispersant, whereas the melt-kneaded substance is positively charged by a cationic dispersant. An aggregate is formed by heteroaggregation of the melt-kneaded substances. The aggregate is fused by heating and formed into a spherical toner.

摘要翻译： 可以防止调色剂成分分散不均匀的调色剂的制造方法，其转印性，清洗性，防
溅性，防粘连性，耐高温粘合性，透明性优异。 提供。 熔融捏合的物质分别包括粘合剂树脂，着色剂和脱模剂。 着色剂和脱模剂分散在粘合剂树脂中。 熔融混炼物质通过阴离子分散剂带负电，而熔融捏合物质通过阳离子分散剂带正电荷。 通过熔融捏合物质的杂聚而形成骨料。 聚集体通过加热熔化并形成球形调色剂。

公开(公告)号：US20120070775A1

公开(公告)日：2012-03-22

申请号：US13295483

申请日：2011-11-14

申请人： Kiyoshi TOIZUMI ,  Satoru Ariyoshi ,  Yasuhiro Shibai

发明人： Kiyoshi TOIZUMI ,  Satoru Ariyoshi ,  Yasuhiro Shibai

IPC分类号： G03G9/08 ,  B82Y40/00

CPC分类号： G03G9/0819 ,  G03G9/09725

摘要： A toner capable of ensuring cleanness and the amount of specific charge for extended periods of time and having excellent charge stability and fixing property, a two-component developer, a developing device and an image forming apparatus are provided. A toner includes toner particles containing at least a binding resin and a coloring agent, and fine silicon-containing oxide particles having an average primary particle size of not smaller than 70 nm but not larger than 150 nm and containing water in an amount of not larger than 2.0% by weight, the fine silicon-containing oxide particles being externally added to the toner particles.

摘要翻译： 提供能够确保更长时间的清洁度和特定电荷量并且具有优异的电荷稳定性和定影性的调色剂，双组分显影剂，显影装置和图像形成装置。 调色剂包括至少含有粘合树脂和着色剂的调色剂颗粒和平均一次粒径不小于70nm但不大于150nm且含水量不大的细硅氧化物颗粒 超过2.0重量％时，细粉状氧化硅颗粒在外部添加到调色剂颗粒中。

公开(公告)号：US20090117479A1

公开(公告)日：2009-05-07

申请号：US12317033

申请日：2008-12-17

申请人： Shinichi Nakano ,  Yasuhiro Shibai ,  Keiichi Kikawa

发明人： Shinichi Nakano ,  Yasuhiro Shibai ,  Keiichi Kikawa

IPC分类号： G03G9/087 ,  G03G5/00

CPC分类号： G03G9/0804

摘要： The invention provides a method and an apparatus for manufacturing a developer, which can manufacture a developer having a uniform and fine particle shape in a narrow particle size distribution and having a coloring agent highly dispersed therein at the primary particle level, the method and apparatus at the same time enabling continuous and efficient production without opening and closing a reactor. The method comprises the steps of: dissolving a binding resin component in a supercritical or subcritical fluid so that the binding resin component is blended with a coloring agent component; and reducing the solubility of the binding resin component in the supercritical or subcritical fluid so that the binding resin component is precipitated in the form of particles with the coloring agent component dispersed in the interior thereof. In the aforementioned method and apparatus, the reactor provided with at least a stirring mechanism and a mechanism for discharging dissolved components has a developer material carrier comprising a mesh that prevents the passage of treated materials and allows the passage of the supercritical or subcritical fluid.

摘要翻译： 本发明提供了一种用于制造显影剂的方法和装置，其可以制造具有窄粒度分布的均匀和细颗粒形状的显影剂，并且其初级颗粒水平上具有高度分散在其中的着色剂，该方法和装置 同时能够在不打开和关闭反应器的情况下实现连续高效的生产。 该方法包括以下步骤：将粘结树脂组分溶解在超临界或亚临界流体中，使粘结树脂组分与着色剂组分共混; 并降低粘结树脂成分在超临界或亚临界流体中的溶解度，使得结合树脂组分以分散在其内部的着色剂组分的颗粒形式沉淀。 在上述方法和装置中，设置有至少搅拌机构和用于排出溶解组分的机构的反应器具有显影剂载体，其包含防止经处理的材料通过并允许超临界或亚临界流体通过的网。

公开(公告)号：US20070166638A1

公开(公告)日：2007-07-19

申请号：US11652482

申请日：2007-01-12

申请人： Katsuru Matsumoto ,  Yasuhiro Shibai

发明人： Katsuru Matsumoto ,  Yasuhiro Shibai

IPC分类号： G03G9/08

CPC分类号： G03G9/0817 ,  G03G9/0804 ,  G03G9/081 ,  G03G9/0815

摘要： A toner is manufactured by way of a coarse particle preparing step, a slurry preparing step, a pulverizing step, a cooling step, and a depressurizing step. Slurry of toner coarse particles obtained by way of the coarse particle preparing step and the slurry preparing step is made to pass under heat and pressure through a pressure-resistant nozzle whereby toner coarse particles are pulverized into diameter-reduced toner particles. By providing the cooling step immediately after the pulverizing step, dispersion of wax component into the toner particles is promoted. And by further providing the depressurizing step, bubbling and coarsening of the toner particles due to the bubbling are prevented. By so doing, there is obtained a diameter-reduced toner particle in which wax is evenly dispersed and which does not cause bleeding out.

摘要翻译： 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制造调色剂。 通过粗颗粒制备步骤和浆料制备步骤获得的调色剂粗颗粒通过耐压喷嘴在加热和压力下通过，由此调色剂粗颗粒被粉碎成直径减小的调色剂颗粒。 通过在粉碎步骤之后立即提供冷却步骤，促进了蜡组分向调色剂颗粒中的分散。 并且通过进一步提供减压步骤，防止由于起泡引起的调色剂颗粒的起泡和粗化。 通过这样做，得到其中蜡均匀分散并且不引起渗出的直径减小的调色剂颗粒。

公开(公告)号：US20060084003A1

公开(公告)日：2006-04-20

申请号：US11252992

申请日：2005-10-19

申请人： Yasuhiro Shibai ,  Yoritaka Tsubaki ,  Keiichi Kikawa

发明人： Yasuhiro Shibai ,  Yoritaka Tsubaki ,  Keiichi Kikawa

IPC分类号： G03G9/08

CPC分类号： G03G9/081 ,  G03G9/0819 ,  G03G9/08755 ,  G03G9/08759 ,  G03G9/0904 ,  G03G9/09716 ,  G03G9/09725 ,  G03G9/10 ,  G03G9/113

摘要： A two-component developer and an image formation method for two-component development type are provided. With this developer and this method, even if toners have a small grain diameter and a high density of pigments for economizing the toner consumption, cracking and toner spent caused by the stress from carriers are suppressed, so that less deteriorated and stabler images can be obtained throughout a long time period. The two-component developer includes toner particles containing at least a binding resin and a pigment. A mean volume particle diameter of the toner particles is between 5.5 μm and 7 μm. A number percent of the toner particles with a mean volume particle diameter of 5 μm or below, and a volume percent of the toner particles with a mean volume particle diameter between 8 μm and 12.7 μm, with respect to the total toner particles, respectively, are set to be within a predetermined range. Density of the pigment in the toner particles is between 8 weight percent and 20 weight percent. The two-component developer also includes carrier particles which are resin-coated carrier particles. A mean volume particle diameter of the carrier particles is between 35 μm and 65 μm. The two-component developer allows the formation of less deteriorated and stabler images throughout a long time period.

摘要翻译： 提供双组分显影剂和双组分显影类型的图像形成方法。 使用该显影剂和该方法，即使调色剂具有小的粒径和高密度的颜料以节省调色剂消耗，也能够抑制来自载体的应力引起的开裂和消耗，从而可以获得更少的劣化和更稳定的图像 在很长一段时间内。 双组分显影剂包括至少含有粘合树脂和颜料的调色剂颗粒。 调色剂颗粒的平均体积粒径在5.5μm和7μm之间。 分别相对于总调色剂颗粒，平均体积粒径为5μm以下的调色剂颗粒的数量百分比以及平均体积粒径在8μm和12.7μm之间的调色剂颗粒的体积百分数， 被设定在预定范围内。 调色剂颗粒中颜料的密度为8重量％至20重量％。 双组分显影剂还包括作为树脂涂布的载体颗粒的载体颗粒。 载体颗粒的平均体积粒径在35μm和65μm之间。 双组分显影剂允许在长时间内形成较不恶化和稳定的图像。

公开(公告)号：US08431321B2

公开(公告)日：2013-04-30

申请号：US13348200

申请日：2012-01-11

申请人： Yasuhiro Shibai

发明人： Yasuhiro Shibai

IPC分类号： G03G5/00

CPC分类号： G03G9/0804 ,  G03G9/0825 ,  G03G9/08711 ,  G03G9/08755 ,  G03G9/08759

摘要： There are provided a toner that allows prevention of environmental contamination and is nevertheless free from toner durability degradation, wherein a sufficiently wide color reproduction range can be secured even when it is applied to color toner, and variation in characteristics among toner particles can be suppressed, as well as a method of manufacturing a toner, a developing device, and an image forming apparatus. In the toner particle is formed the biomass resin-containing domain.

摘要翻译： 提供了一种能够防止环境污染并且没有调色剂耐久性劣化的调色剂，其中即使将其应用于彩色调色剂也可以确保足够宽的色彩再现范围，并且可以抑制调色剂颗粒之间的特性变化， 以及调色剂的制造方法，显影装置和图像形成装置。 在调色剂颗粒中形成含生物质树脂的结构域。

公开(公告)号：US20110136055A1

公开(公告)日：2011-06-09

申请号：US12958550

申请日：2010-12-02

申请人： Yasuhiro SHIBAI ,  Satoru ARIYOSHI

发明人： Yasuhiro SHIBAI ,  Satoru ARIYOSHI

IPC分类号： G03G9/087

CPC分类号： G03G9/08786 ,  G03G9/08726 ,  G03G9/08775 ,  G03G9/08793 ,  G03G9/08797

摘要： A toner having good dispersibility of a pigment and a release agent therein and having excellent low temperature fixability is provided. The toner includes a binder resin, a pigment and a release agent, and the binder resin includes a graft polymer in which abietic acids and an unsaturated fatty acid are grafted to a vinyl resin. An image is formed using such a toner.

摘要翻译： 提供了具有良好的颜料分散性和其中脱模剂并且具有优异的低温定影性的调色剂。 调色剂包括粘合剂树脂，颜料和脱模剂，并且粘合剂树脂包括其中松香酸和不饱和脂肪酸接枝到乙烯基树脂上的接枝聚合物。 使用这种调色剂形成图像。

公开(公告)号：US20110053075A1

公开(公告)日：2011-03-03

申请号：US12869790

申请日：2010-08-27

申请人： Satoru ARIYOSHI ,  Yasuhiro Shibai

发明人： Satoru ARIYOSHI ,  Yasuhiro Shibai

IPC分类号： G03G9/08

CPC分类号： G03G9/08775 ,  G03G9/081 ,  G03G9/08753 ,  G03G9/08755 ,  G03G9/08793 ,  G03G9/08795 ,  G03G9/08797

摘要： A toner comprising: a component consisting of a thermoplastic resin containing an amorphous plant-derived resin having a carboxyl group; a component consisting of a crystalline epoxy resin having a glycidyl group; a component consisting of a cross-linked resin generated through a reaction between the carboxyl group of the plant-derived resin and the glycidyl group of the crystalline epoxy resin; and a colorant.

摘要翻译： 一种调色剂，其包含：由含有具有羧基的无定形植物衍生树脂的热塑性树脂组成的组分; 由具有缩水甘油基的结晶环氧树脂组成的组分; 由通过植物来源的树脂的羧基与结晶环氧树脂的缩水甘油基之间的反应产生的交联树脂组成的组分; 和着色剂。

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。