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1. 发明专利

JP2005049858A Resin particle for toner and its manufacturing method 有权
标题翻译：用于调色剂的树脂颗粒及其制造方法
公开(公告)号：JP2005049858A
公开(公告)日：2005-02-24
申请号：JP2004207825
申请日：2004-07-14
申请人： Ricoh Co Ltd , Sanyo Chem Ind Ltd , 三洋化成工業株式会社 , 株式会社リコー
发明人： TAKIGAWA TADAO , KANO TOSHIHIKO , NODA HIDETOSHI , YAHIRO SHUHEI , ICHIKAWA TOMOYUKI , MOCHIZUKI MASARU , IWAMOTO YASUTAKA , SUGIURA HIDEKI
IPC分类号： G03G9/08 , G03G9/087
摘要： PROBLEM TO BE SOLVED: To provide resin particles for toner having excellent blade cleaning property and a wide fixing temperature range. SOLUTION: The resin particles for toner comprise a resin (a) and a filler (b). The particles have 3 to 10 μm volume average particle diameter and 110 to 300 shape factor (SF-2). The particle has a shell layer (S) comprising at least part of the filler (b), and the layer (S) has the thickness of at least 0.01 μm and up to a half of the radius of the maximum inscribed circle of the particle cross section. The resin particles are obtained by the manufacturing method including steps of: (1) dispersing the filler (b) in a dispersion liquid (D0) of the resin (a) and/or its precursor (a0) in a solvent (s) to prepare a filler-containing dispersion liquid (D) and further dispersing the filler-containing dispersion liquid (D) in an aqueous medium (W) to produce an oil-in-water dispersion liquid (D1) so as to form an agglomerated layer (S0) comprising at least a part of the filler (b) in the oil drops (A0); and (2) removing the solvent from the liquid (D1) to obtain the resin particles (A). COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：提供具有优异的刮板清洁性和宽定影温度范围的调色剂用树脂颗粒。调色剂用树脂颗粒包含树脂（a）和填料（b）。颗粒的体积平均粒径为3〜10μm，形状因子（SF-2）为110〜300。颗粒具有包含至少部分填料（b）的壳层（S），并且该层（S）具有至少0.01μm的厚度和高达颗粒的最大内接圆的半径的一半横截面。该树脂颗粒通过以下步骤获得：（1）将树脂（a）和/或其前体（a0）的分散液（D0）中的填料（b）分散在溶剂中，分散到制备含填料的分散液（D），并将含有填料的分散液（D）进一步分散在水性介质（W）中以制备水包油分散液（D1），以形成附聚层（ S0）在油滴（A0）中包含填料（b）的至少一部分; 和（2）从液体（D1）中除去溶剂以获得树脂颗粒（A）。版权所有（C）2005，JPO＆NCIPI

2. 发明专利

JP2010079318A Resin particle for toner 有权
标题翻译：树脂颗粒
公开(公告)号：JP2010079318A
公开(公告)日：2010-04-08
申请号：JP2010005680
申请日：2010-01-14
申请人： Ricoh Co Ltd , Sanyo Chem Ind Ltd , 三洋化成工業株式会社 , 株式会社リコー
发明人： TAKIGAWA TADAO , KINSHO TOSHIHIKO , NODA HIDETOSHI , YAHIRO SHUHEI , ICHIKAWA TOMOYUKI , MOCHIZUKI MASARU , IWAMOTO YASUTAKA , SUGIURA HIDEKI
IPC分类号： G03G9/087 , B01J2/06 , B01J13/14 , C08F2/44 , G03G9/08 , G03G9/097
CPC分类号： G03G9/097 , B01J2/06 , B01J13/14 , C08F2/44 , C08L83/04 , G03G9/0819 , G03G9/0827 , Y10T428/2984 , Y10T428/2991 , Y10T428/2998 , C08L2666/02
摘要： PROBLEM TO BE SOLVED: To provide a resin particle for toner, excellent in blade cleaning property and having a wide fixation temperature range. SOLUTION: The resin particle for toner includes a resin (a) and a filler (b), and have a concavo-convex feature on the particle surface. The particle has an outer shell layer (S) having the filler (b) inside from the surface and at least a part (b*) of the filler (b) aggregating close to the surface. The outer shell layer (S) is at least 0.01 μm thick and has a thickness that is a half or less of the maximum inscribed circle radius of the particle cross section. The particle has a volume average particle diameter of from 3 to 10 μm, and a shape factor (SF-2) of from 110 to 137. The filler (b) is an inorganic filler treated with a surface treating agent (d) selected from a group consisting of a silane coupling agent, a titanate coupling agent, an aluminate coupling agent and a tertiary amine compound. The content of the filler (b) is from 0.01 to 50 mass%. The resin (a) includes a urethane resin, an epoxy resin, a vinyl resin or an ester resin. COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：提供一种用于调色剂的树脂颗粒，具有优异的刮刀清洁性能和较宽的定影温度范围。解决方案：用于调色剂的树脂颗粒包括树脂（a）和填料（b），并且在颗粒表面上具有凹凸特征。颗粒具有从表面内部具有填料（b）的外壳层（S），并且填料（b）的至少一部分（b *）聚集在表面附近。外壳层（S）的厚度为0.01μm以上，其厚度为粒子截面的最大内切圆半径的一半以下。粒子的体积平均粒径为3〜10μm，形状因子（SF-2）为110〜137。填料（b）是用表面处理剂（d）处理的无机填料，由硅烷偶联剂，钛酸酯偶联剂，铝酸酯偶联剂和叔胺化合物组成的组。填料（b）的含量为0.01〜50质量％。树脂（a）包括聚氨酯树脂，环氧树脂，乙烯基树脂或酯树脂。版权所有（C）2010，JPO＆INPIT

3. 发明专利

JP2005049853A Toner, developer, developing apparatus, and an image forming apparatus 审中-公开
标题翻译：调色剂，开发商，开发设备和图像形成装置
公开(公告)号：JP2005049853A
公开(公告)日：2005-02-24
申请号：JP2004206785
申请日：2004-07-14
申请人： Ricoh Co Ltd , Sanyo Chem Ind Ltd , 三洋化成工業株式会社 , 株式会社リコー
发明人： ICHIKAWA TOMOYUKI , MOCHIZUKI MASARU , IWAMOTO YASUTAKA , SUGIURA HIDEKI , TAKIGAWA TADAO , KANO TOSHIHIKO , NODA HIDETOSHI , YAHIRO SHUHEI
IPC分类号： G03G9/08 , G03G9/087
CPC分类号： G03G9/08755 , G03G9/0806 , G03G9/0821 , G03G9/0825 , G03G9/0827
摘要： PROBLEM TO BE SOLVED: To provide toner capable of making compatible a transferring property, a fixing property and a cleaning property and forming a high-precision image. SOLUTION: The toner comprises at least binder resin and a coloring agent, and is characterized in that the average circularity of the toner is at least 0.95, a ratio (D/S) between the total projection area (S) and the contact area (D) of the toner is 15-40%, and the contact area (D) is a total contact area between the toner and an object surface. The toner has such a shape as to be able to contact a latent image carrier with a proper contact area, has a high transferring rate and can prevent transferring dust. COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：提供能够使转印性能，定影性和清洁性相容的调色剂，并形成高精度图像。调色剂至少包含粘合剂树脂和着色剂，其特征在于，调色剂的平均圆度为至少0.95，总投影面积（S）与调色剂的接触面积（D）为15-40％，接触面积（D）是调色剂和物体表面之间的总接触面积。调色剂具有能够以适当的接触面积与潜像载体接触的形状，具有高转印速度并且可以防止转印灰尘。版权所有（C）2005，JPO＆NCIPI

4. 发明专利

JP2013195454A Toner for developing electrostatic charge image 审中-公开
标题翻译：用于开发静电荷图像的调色剂
公开(公告)号：JP2013195454A
公开(公告)日：2013-09-30
申请号：JP2012059246
申请日：2012-03-15
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： YOKOKAWA KEI , IWAMOTO YASUTAKA , KADOTA TAKAHIRO
IPC分类号： G03G9/08 , G03G9/087 , G03G9/09 , G03G9/097
CPC分类号： G03G9/09766 , G03G9/0804 , G03G9/09 , G03G9/0904
摘要： PROBLEM TO BE SOLVED: To provide a toner which has sufficiently high starting performance in charging, excellent temporal stability in charging, a reduced amount of filming of an external additive detached from the toner on a photoreceptor even after output of several tens of thousands of sheets of an image, and excellent fixability.SOLUTION: A black toner for developing an electrostatic charge image includes at least a pigment, a binder resin, a mold release agent, a fluorine-containing compound, and a sulfur-containing compound. By combustion ion chromatography, the toner has a fluorine atomic mass relative to the toner matrix mass in the range of 200 to 600 ppm and a sulfur mass relative to the toner matrix mass in the range of 1000 to 1500 ppm.
摘要翻译：要解决的问题：为了提供在充电中具有足够高的起动性能的调色剂，充电时的时间稳定性优异，即使在输出数万张片材之后，外界添加剂从感光体上的调色剂分离的成膜量也减少了的图像，并且具有优异的定影性。解决方案：用于显影静电荷图像的黑色调色剂至少包括颜料，粘合剂树脂，脱模剂，含氟化合物和含硫化合物。通过燃烧离子色谱法，调色剂相对于调色剂基质质量在200至600ppm范围内具有氟原子质量，相对于调色剂基体质量的硫质量为1000至1500ppm。

5. 发明专利

JP2011191725A Toner for developing electrostatic image, image forming device using the toner, and image forming method 有权
标题翻译：用于开发静电图像的调色剂，使用调色剂的图像形成装置和图像形成方法
公开(公告)号：JP2011191725A
公开(公告)日：2011-09-29
申请号：JP2010136821
申请日：2010-06-16
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： WATANABE SHINKO , SHIMODA NAOTO , IWAMOTO YASUTAKA , SHIBA MASANA , KOJIMA TOMOYUKI
IPC分类号： G03G9/08 , G03G9/087 , G03G15/08
摘要： PROBLEM TO BE SOLVED: To provide: toner excellent in small dot reproducibility, cleaning property, low-temperature fixing property, blocking resistance, transfer efficiency and OHP transparency; an image forming device; and an image forming method. SOLUTION: The toner can be obtained through a process to emulsify or disperse a toner material solution containing a solution containing materials constituting the toner in an aqueous medium. The toner material solution contains at least a precursor of a binder resin (A) and/or a binder resin (B), a wax, a layered inorganic mineral and tertiary amine. The wax is a petroleum wax of which weight reduction is 10 mass% or less at 165°C and its melting point is 60-95°C. The layered inorganic mineral is provided by modifying at least some of inter-layer ions with organic ions. The toner has an average circularity of 0.955-0.975 and the tertiary amine remaining in the toner is 0.1 wt.% or less. COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：提供：小点再现性，清洁性，低温定影性，抗粘连性，转印效率和OHP透明度优异的调色剂; 图像形成装置; 和图像形成方法。解决方案：调色剂可以通过将包含构成调色剂的材料的溶液的调色剂材料溶液乳化或分散在水性介质中的方法获得。调色剂材料溶液至少含有粘合剂树脂（A）和/或粘合剂树脂（B），蜡，层状无机矿物和叔胺的前体。该蜡是在165℃下重量减少10质量％以下且石油蜡的熔点为60〜95℃的石油蜡。通过用有机离子修饰至少一些层间离子来提供层状无机矿物质。调色剂的平均圆形度为0.955-0.975，调色剂中残留的叔胺为0.1重量％以下。版权所有（C）2011，JPO＆INPIT

6. 发明专利

JP2011039251A Toner, method for producing the same, developer, and image forming method 有权
标题翻译：调色剂，其生产方法，开发商和图像形成方法
公开(公告)号：JP2011039251A
公开(公告)日：2011-02-24
申请号：JP2009186074
申请日：2009-08-10
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： WATANABE SHINKO , WATANABE MASAKI , IWAMOTO YASUTAKA , NAGATOMO NOBUYASU , SHU HYO , KOJIMA TOMOYUKI
IPC分类号： G03G9/087 , G03G9/08 , G03G15/16
摘要： PROBLEM TO BE SOLVED: To provide a toner and a method of producing the toner capable of improving transfer efficiency and eliminating an image detect in each transfer for outputting an image with good reproducibility over a long term in a high-speed full-color image forming method, and to provide a developer and an image forming method. SOLUTION: The method of producing the toner includes at least a surface processing process in which the surfaces of toner base particles are processed after dispersing the toner base particles in a medium containing a surfactant. In the surface processing process, when the glass transition temperature of the toner base particles is represented by Tg (°C), an aqueous medium at a temperature of (Tg-10)-(Tg+30) (°C) is mixed with the toner base particles and the mixture liquid is heated to the temperature of (Tg-10)-(Tg+10) (°C), and during or after heating, shear force is given to the mixture liquid. An amount of the surfactant in the mixture liquid is 0.1-2.0 times of a critical micelle concentration of the surfactant. COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：提供一种调色剂和一种生产能够提高转印效率的调色剂的方法和在每次转印中消除图像检测，以便在高速全频中输出长期良好的再现性的图像，彩色图像形成方法，并提供显影剂和图像形成方法。解决方案：调色剂的制造方法至少包括表面处理工艺，其中调色剂基础颗粒的表面在将调色剂基础颗粒分散在含有表面活性剂的介质中之后被处理。在表面处理过程中，当调色剂基础颗粒的玻璃化转变温度由Tg（℃）表示时，将温度为（Tg-10） - （Tg + 30）（℃）的水性介质与将调色剂基础颗粒和混合液体加热至（Tg-10） - （Tg + 10）（℃）的温度，并且在加热期间或之后，向混合液体施加剪切力。混合液中的表面活性剂的量为表面活性剂的临界胶束浓度的0.1〜2.0倍。版权所有（C）2011，JPO＆INPIT

7. 发明专利

JP2010204138A Image forming toner, single-component developer, two-component developer, image forming method using the toner, image forming apparatus and process cartridge 审中-公开
标题翻译：图像形成调色剂，单组分显影剂，双组分显影剂，使用调色剂的图像形成方法，图像形成装置和方法盒
公开(公告)号：JP2010204138A
公开(公告)日：2010-09-16
申请号：JP2009046218
申请日：2009-02-27
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： MORITA TATSUYA , IWAMOTO YASUTAKA , OGAWA SATORU , SUZUKI KAZUMI , WAKAMATSU SHINICHI
IPC分类号： G03G9/087 , G03G9/08 , G03G9/10 , G03G15/20
摘要： PROBLEM TO BE SOLVED: To provide pulverized toner (image forming toner), uniformly dispersing a pigment in toner while achieving high-temperature offset, high glossiness and fixing lower limit temperature, and having high saturation and a wide offset band. SOLUTION: The pulverized toner (image forming toner) at least contains a colorant and binder resin. The binder resin has an unsaturated bond. When a pigment dispersant where a crosslinking initiator is dissolved or dispersed is added to the binder resin, and molten and kneaded, the unsaturated bond forms a crosslinking point. COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：为了提供粉碎的调色剂（成像调色剂），均匀地将颜料分散在调色剂中，同时实现高温偏移，高光泽度和固定下限温度，并且具有高饱和度和宽的偏移带。调色剂（成像调色剂）至少含有着色剂和粘合剂树脂。粘合剂树脂具有不饱和键。当粘合剂树脂中加入交联引发剂溶解或分散的颜料分散剂并熔融混炼时，不饱和键形成交联点。版权所有（C）2010，JPO＆INPIT

8. 发明专利

JP2010091838A Toner for developing static charge image, and method of manufacturing the same 有权
标题翻译：用于开发静态电荷图像的调色剂及其制造方法
公开(公告)号：JP2010091838A
公开(公告)日：2010-04-22
申请号：JP2008262577
申请日：2008-10-09
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： SUZUKI KAZUMI , IWAMOTO YASUTAKA , OGAWA SATORU , MORITA TATSUYA
IPC分类号： G03G9/087 , G03G9/08
摘要： PROBLEM TO BE SOLVED: To provide a manufacturing method, improving the production efficiency, and easily manufacturing a toner having superior low-temperature fixability and offset ability, and further enlarged fixing temperature range to obtain high gloss. SOLUTION: This method of manufacturing toner for developing static charge images, at least includes: a process of heating, melting and kneading binder resin, radiation crosslink monomer compatible with the binder resin and a coloring agent; a process of forming a thin film of the kneaded material, obtained by kneading to have a film thickness equal to or more than an average particle diameter of toner and 12 μm or less; a process of applying radial rays to the thin film obtained by the above thin-film formation, at a temperature equal to or lower than the glass transition point of the kneaded material +5°C or more and +30°C or less to bridge the radiation crosslink monomer; and a process of grinding and classifying the thin film subjected to application of radial rays to obtain toner particles. COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：提供制造方法，提高生产效率，并且容易地制造具有优异的低温定影性和偏移能力的调色剂，并且进一步扩大定影温度范围以获得高光泽度。解决方案：这种制造用于显影静电荷图像的调色剂的方法至少包括：加热，熔融和捏合粘合剂树脂，与粘合剂树脂相容的辐射交联单体和着色剂的方法; 通过捏合获得的具有等于或大于调色剂的平均粒径的膜厚度为12μm以下的捏合材料的薄膜的方法; 在等于或低于+ 5℃以上〜+ 30℃以下的混炼物的玻璃化转变温度以上的温度下，向通过上述薄膜形成得到的薄膜施加径向射线的工序，辐射交联单体; 以及对施加径向射线的薄膜进行研磨和分级以获得调色剂颗粒的方法。版权所有（C）2010，JPO＆INPIT

9. 发明专利

JP2009134060A Electrophotographic white toner, and image forming apparatus and image forming method using the same 有权
标题翻译：电子白蛋白和图像形成装置和使用其的图像形成方法
公开(公告)号：JP2009134060A
公开(公告)日：2009-06-18
申请号：JP2007309906
申请日：2007-11-30
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： MASUDA MINORU , SHIDARA YASUSADA , IWAMOTO YASUTAKA , SASAKI FUMIHIRO , NAKAJIMA HISASHI , MORITA TATSUYA
IPC分类号： G03G9/09 , G03G9/08 , G03G9/087 , G03G15/01
摘要： PROBLEM TO BE SOLVED: To effectively prevent film peeling or cracking in formation of a white toner layer as a bed for color image or a monochrome image. SOLUTION: A full-color image is formed on a transparent film 326 by electrophotographic method, and a white toner layer is formed as a top layer of the full-color image forming surface, by fixing an electrophotographic white toner containing at least cyclic butadiene and white pigment thereon, whereby a bright full-color image is formed. COPYRIGHT: (C)2009,JPO&INPIT

10. 发明专利

JP2009110022A Image forming method and image forming apparatus 审中-公开
标题翻译：图像形成方法和图像形成装置
公开(公告)号：JP2009110022A
公开(公告)日：2009-05-21
申请号：JP2009010617
申请日：2009-01-21
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： NAKAI HIROSHI , SASAKI FUMIHIRO , IWAMOTO YASUTAKA , HIGUCHI HIROTO , ZHU BING , KONDO MAIKO
IPC分类号： G03G9/08 , G03G5/047 , G03G5/147
摘要： PROBLEM TO BE SOLVED: To provide an image forming method with high picture quality, by which filming of toner or the like on a photoreceptor surface is hardly caused, and if filming is caused, the photoreceptor surface is slightly worn and hardly scratched upon removal by cleaning, thereby, the photoreceptor is not damaged.
SOLUTION: A toner is prepared by adding an additive containing silica fine particles and titanium oxide fine particles to the base particles comprising at least a binder resin and a colorant. An electrostatic latent image on an electrophotographic photoreceptor having a coefficient of surface friction of not less than 0.3 in the initial state is developed by using the above toner. In the above two kinds of inorganic fine particles, one kind of the inorganic fine particles has an average primary particle diameter of not more than 0.03 μm, and the other kind of the inorganic fine particles has an average primary particle diameter of not more than 0.2 μm, the average particle diameters of both particles being different from each other. At least one of the two kinds of the inorganic fine particles are hydrophobic fine particles treated with an organosilane compound.
COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：为了提供一种图像质量高的图像形成方法，通过该图像形成方法几乎不会引起感光体表面上的调色剂等的成膜，并且如果造成成膜，则感光体表面稍微磨损并且几乎不被划伤在通过清洁移除时，感光体不被损坏。解决方案：通过向包含至少一种粘合剂树脂和着色剂的基础颗粒中加入含有二氧化硅微粒和氧化钛微粒的添加剂来制备调色剂。通过使用上述调色剂显影在初始状态下具有不小于0.3的表面摩擦系数的电子照相感光体上的静电潜像。在上述两种无机细颗粒中，一种无机细颗粒的平均一次粒径不大于0.03μm，另一种无机细颗粒的平均初级粒径不大于0.2 两个颗粒的平均粒径彼此不同。两种无机细颗粒中的至少一种是用有机硅烷化合物处理的疏水性细颗粒。版权所有（C）2009，JPO＆INPIT

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