公开(公告)号：US20090117479A1

公开(公告)日：2009-05-07

申请号：US12317033

申请日：2008-12-17

Applicant: Shinichi Nakano ,  Yasuhiro Shibai ,  Keiichi Kikawa

Inventor： Shinichi Nakano ,  Yasuhiro Shibai ,  Keiichi Kikawa

IPC: G03G9/087 ,  G03G5/00

CPC classification number: G03G9/0804

Abstract: 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.

Abstract translation: 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：US20060183045A1

公开(公告)日：2006-08-17

申请号：US10544455

申请日：2004-01-23

Applicant: Shinichi Nakano ,  Yasuhiro Shibai ,  Keiichi Kikawa

Inventor： Shinichi Nakano ,  Yasuhiro Shibai ,  Keiichi Kikawa

IPC: G03G9/08

CPC classification number: G03G9/0804 ,  G03G9/0802

Abstract: A method for manufacturing a developing agent comprising dissolving a binder resin component in a supercritical fluid or a subcritical fluid, mixing it with a colorant component, reducing the solubility of the binder resin component in the supercritical fluid or subcritical fluid, and causing the binder resin component to be deposited in the form of particles while the colorant component is dispersed within the binder resin component. After the pressure within a reaction vessel is decreased from A (MPa) to B (MPa) (where A>B>critical pressure) following the manufacture of a developing agent, the method proceeds back to a developing agent manufacturing step again when at least a developing agent material and a supercritical fluid or a subcritical fluid are injected into the reaction vessel under high pressure. The method allows the dispersibility of the colorant component in the developing agent to be increased up to a primary particle level, whereby a developing agent with an even particle shape and a narrow particle size distribution can be obtained. The method also makes continuous production possible without the need to open and close the reaction vessel, leading to a high production efficiency.

Abstract translation: 一种制造显影剂的方法，包括将粘合剂树脂组分溶解在超临界流体或亚临界流体中，将其与着色剂组分混合，降低粘合剂树脂组分在超临界流体或亚临界流体中的溶解度，并使粘合剂树脂 组分以颗粒的形式沉积，而着色剂组分分散在粘合剂树脂组分中。 在制造显影剂之后，在反应容器中的压力从A（MPa）降低到B（MPa）（其中A> B>临界压力）之后，该方法至少再次返回到显影剂制造步骤 将显影剂材料和超临界流体或亚临界流体在高压下注入反应容器中。 该方法允许着色剂组分在显影剂中的分散性增加到初级颗粒水平，由此可以获得具有均匀颗粒形状和窄粒度分布的显影剂。 该方法也使连续生产成为可能，而不需要打开和关闭反应容器，从而导致高生产效率。

公开(公告)号：US07931876B2

公开(公告)日：2011-04-26

申请号：US12317033

申请日：2008-12-17

Applicant: Shinichi Nakano ,  Yasuhiro Shibai ,  Keiichi Kikawa

Inventor： Shinichi Nakano ,  Yasuhiro Shibai ,  Keiichi Kikawa

IPC: B01J19/18 ,  G03G5/00

CPC classification number: G03G9/0804

Abstract: 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.

Abstract translation: 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，其包括防止经处理的材料通过并允许超临界流体或亚临界流体通过的筛网。

公开(公告)号：US08187783B2

公开(公告)日：2012-05-29

申请号：US12167021

申请日：2008-07-02

Applicant: Keiichi Kikawa ,  Yasuhiro Shibai ,  Katsuru Matsumoto

Inventor： Keiichi Kikawa ,  Yasuhiro Shibai ,  Katsuru Matsumoto

IPC: G03G9/087

CPC classification number: G03G9/081 ,  G03G9/0819 ,  G03G9/0821 ,  G03G9/08782 ,  G03G9/09741 ,  G03G9/0975

Abstract: 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.

Abstract translation: 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：US20060084003A1

公开(公告)日：2006-04-20

申请号：US11252992

申请日：2005-10-19

Applicant: Yasuhiro Shibai ,  Yoritaka Tsubaki ,  Keiichi Kikawa

Inventor： Yasuhiro Shibai ,  Yoritaka Tsubaki ,  Keiichi Kikawa

IPC: G03G9/08

CPC classification number: G03G9/081 ,  G03G9/0819 ,  G03G9/08755 ,  G03G9/08759 ,  G03G9/0904 ,  G03G9/09716 ,  G03G9/09725 ,  G03G9/10 ,  G03G9/113

Abstract: 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.

Abstract translation: 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：US07955771B2

公开(公告)日：2011-06-07

申请号：US11430050

申请日：2006-05-09

Applicant: Keiichi Kikawa ,  Yasuhiro Shibai ,  Yoritaka Tsubaki

Inventor： Keiichi Kikawa ,  Yasuhiro Shibai ,  Yoritaka Tsubaki

IPC: G03G9/08

CPC classification number: G03G9/0821 ,  G03G9/081 ,  G03G9/0815 ,  G03G9/0819 ,  G03G9/09 ,  G03G9/0926

Abstract: A toner for electrostatic image development, comprising an organic pigment and a binding resin, and satisfying the formula (I): 1−R/A≦0.014C  (I), wherein A represents an entire area of a graph (x-axis: wavelength of a visible radiation region (380 to 780 nm), y-axis: transmittance (0 to 100%)) showing a spectral transmittance curve of a supernatant fluid, the supernatant fluid being obtained by subjecting the toner to an extraction process, the extraction process using a supercritical fluid; R represents an area determined by a Rectangular method on the basis of a spectral transmittance curve in the graph; and C represents a concentration (wt %) of the organic pigment in the toner, the organic pigment having a particle diameter of 1/10 to ½ ( 1/10 to 4/7 when the organic pigment is an organic yellow pigment) of a maximum absorption wavelength of the organic pigment, and the toner having a haze of 16 or less.

Abstract translation: 1.一种用于静电图像显影的调色剂，其包含有机颜料和粘合树脂，并满足式（I）：1-R / A＆nlE; 0.014C（I）其中A表示图的整个区域（x轴： 表示上清液的光谱透射率曲线的可见光辐射区域（380〜780nm）的波长，y轴：透射率（0〜100％）），上清液是通过使调色剂进行萃取处理获得的， 采用超临界流体提取工艺; R表示基于曲线图中的光谱透射率曲线由矩形方法确定的面积; C表示调色剂中的有机颜料的浓度（重量％），有机颜料的粒径为有机颜料为有机颜料的1/10〜1/2（1/10〜4/7） 有机颜料的最大吸收波长，雾度为16以下的调色剂。

公开(公告)号：US20090011358A1

公开(公告)日：2009-01-08

申请号：US12167021

申请日：2008-07-02

Applicant: Keiichi Kikawa ,  Yasuhiro Shibai ,  Katsuru Matsumoto

Inventor： Keiichi Kikawa ,  Yasuhiro Shibai ,  Katsuru Matsumoto

IPC: G03G9/00 ,  G03G5/00

CPC classification number: G03G9/081 ,  G03G9/0819 ,  G03G9/0821 ,  G03G9/08782 ,  G03G9/09741 ,  G03G9/0975

Abstract: 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.

Abstract translation: 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：US20060084002A1

公开(公告)日：2006-04-20

申请号：US11250497

申请日：2005-10-17

Applicant: Yasuhiro Shibai ,  Yoritaka Tsubaki ,  Keiichi Kikawa

Inventor： Yasuhiro Shibai ,  Yoritaka Tsubaki ,  Keiichi Kikawa

IPC: G03G9/08

CPC classification number: G03G9/081 ,  G03G9/0819 ,  G03G9/08755 ,  G03G9/08759 ,  G03G9/0904 ,  G03G9/09716 ,  G03G9/09725 ,  G03G9/10 ,  G03G9/113

Abstract: 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 5.51 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.

Abstract translation: 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5.51μm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：US20080032224A1

公开(公告)日：2008-02-07

申请号：US11882370

申请日：2007-08-01

Applicant: Keiichi Kikawa ,  Katsuru Matsumoto ,  Yasuhiro Shibai

Inventor： Keiichi Kikawa ,  Katsuru Matsumoto ,  Yasuhiro Shibai

IPC: G03G9/10 ,  C08F20/06 ,  G03G15/06

CPC classification number: G03G9/08791 ,  G03G9/0804 ,  G03G9/08733 ,  G03G9/08795 ,  G03G9/09733 ,  G03G9/0975

Abstract: A toner in form of aggregate of resin-containing particles is manufactured by aggregating the resin-containing particles which contain binder resin and the colorant, with the aid of an aggregate dispersant containing a polymer in which anionic polar groups are bonded to a main chain. To be specific, salt of divalent or higher valent metal is added to a slurry of the resin-containing particles so that a metal ion and the anionic polar group are bonded to each other, and a temperature of the slurry is increased so that a bond between the anionic polar group and a water molecule is broken. This decreases water-solubility of the polymer so that the resin-containing particles are aggregated.

Abstract translation: 通过将含有阴离子极性基团与主链结合的聚合物的聚集体分散剂聚集在一起，将含有粘结剂树脂和着色剂的含树脂颗粒聚集在一起，制成含树脂颗粒聚集体的调色剂。 具体而言，向含树脂粒子的浆料中添加二价以上的金属盐，使金属离子和阴离子极性基团相互结合，使浆料的温度升高， 阴离子极性基团与水分子之间的断裂。 这降低了聚合物的水溶性，使得含树脂的颗粒聚集。

公开(公告)号：US08021817B2

公开(公告)日：2011-09-20

申请号：US11882370

申请日：2007-08-01

Applicant: Keiichi Kikawa ,  Katsuru Matsumoto ,  Yasuhiro Shibai

Inventor： Keiichi Kikawa ,  Katsuru Matsumoto ,  Yasuhiro Shibai

IPC: G03G9/08

CPC classification number: G03G9/08791 ,  G03G9/0804 ,  G03G9/08733 ,  G03G9/08795 ,  G03G9/09733 ,  G03G9/0975

Abstract: A toner in form of aggregate of resin-containing particles is manufactured by aggregating the resin-containing particles which contain binder resin and the colorant, with the aid of an aggregate dispersant containing a polymer in which anionic polar groups are bonded to a main chain. To be specific, salt of divalent or higher valent metal is added to a slurry of the resin-containing particles so that a metal ion and the anionic polar group are bonded to each other, and a temperature of the slurry is increased so that a bond between the anionic polar group and a water molecule is broken. This decreases water-solubility of the polymer so that the resin-containing particles are aggregated.

Abstract translation: 通过将含有阴离子极性基团与主链结合的聚合物的聚集体分散剂聚集在一起，将含有粘结剂树脂和着色剂的含树脂颗粒聚集在一起，制成含树脂颗粒聚集体的调色剂。 具体而言，向含树脂粒子的浆料中添加2价以上的金属盐，使金属离子和阴离子极性基团相互结合，使浆料的温度升高， 阴离子极性基团与水分子之间的断裂。 这降低了聚合物的水溶性，使得含树脂的颗粒聚集。