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1. 发明专利

JP2013077003A Production method of toner 有权
标题翻译：调色剂的生产方法
公开(公告)号：JP2013077003A
公开(公告)日：2013-04-25
申请号：JP2012201093
申请日：2012-09-13
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： TADA KEISUKE , UEHARA KENICHI , MISAWA TASUKE , OIKAWA AYUMI , ENDO HISASHI
IPC分类号： G03G9/087 , G03G9/08 , G03G9/097
CPC分类号： G03G9/0804 , G03G9/0821 , G03G9/0825 , G03G9/087 , G03G9/08755 , G03G9/08795 , G03G9/08797 , G03G2215/0626 , G03G2215/16 , G03G2215/20
摘要： PROBLEM TO BE SOLVED: To provide a toner for electrostatic charge image development, the toner giving sufficient image density and achieving reduction in an amount of toner adhesion per unit area on a recording medium such as paper, and to provide a production method of the toner for electrostatic charge image development and an image forming method.SOLUTION: The production method of a toner includes steps of: preparing a first liquid by dissolving or dispersing a toner material containing a binder resin and/or a binder resin precursor in an organic solvent; preparing a second liquid by dispersing the first liquid in an aqueous medium containing a dispersant; forming particles by removing the organic solvent from the second liquid; washing the particles; preparing a third liquid by, while dispersing or after dispersing the washed particles in an aqueous medium, heating the medium to a temperature equal to or higher than the Tg of the toner and equal to or lower than Tg+25°C; forming base particles by adding a charge control agent to the third liquid; and obtaining a toner by adding an external additive to the base particles. The toner has a cross-sectional porosity of 0.1% or more and 15.0% or less.
摘要翻译：要解决的问题：为了提供用于静电荷图像显影的调色剂，调色剂具有足够的图像密度并且在诸如纸的记录介质上实现单位面积上的调色剂附着量的减少，并且提供制造方法的静电荷图像显影用调色剂和图像形成方法。调色剂的制备方法包括以下步骤：通过将含有粘合剂树脂和/或粘合剂树脂前体的调色剂材料溶解或分散在有机溶剂中来制备第一液体; 通过将第一液体分散在含有分散剂的水性介质中来制备第二液体; 通过从第二液体中除去有机溶剂形成颗粒; 洗涤颗粒; 通过在将洗涤过的颗粒分散在水性介质中之后分散或分散第三液体，将介质加热到等于或高于调色剂的Tg并等于或低于Tg + 25℃的温度; 通过向第三液体中加入电荷控制剂形成基础颗粒; 并通过向基础颗粒中加入外部添加剂来获得调色剂。调色剂的截面孔隙率为0.1％以上且15.0％以下。版权所有（C）2013，JPO＆INPIT

2. 发明专利

JP2007160298A Cyclone classifier, flash drying system and toner 有权
标题翻译： CYCLONE分类器，闪光干燥系统和调色剂
公开(公告)号：JP2007160298A
公开(公告)日：2007-06-28
申请号：JP2006226266
申请日：2006-08-23
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： KADOTA TAKAHIRO , UEHARA KENICHI , KURODA NOBORU
IPC分类号： B04C5/103 , B04C5/081 , B04C5/12 , G03G9/087
摘要： PROBLEM TO BE SOLVED: To provide a cyclone classifier that can separate powder particles of a narrow distribution range in a high yield, a flash drying system and toner.
SOLUTION: The cyclone classifier composed of an outer cylinder comprising a cylindrical outer shell and an inverted-cone-shaped outer bottom vertically connected to the underside of the cylindrical outer shell and an inner cylinder comprising an exhaust outlet is characterized in that a reduced cross-sectional area is formed by a cylinder of a reduced inner diameter or an orifice-shaped baffle plate at an optional height inside the outer cylinder and that the bottom end of the inner cylinder is located in a cylindrical space (cylindrical part) right under the reduced cross-sectional area.
COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：提供可以以高产率分离窄分布范围的粉末颗粒的旋风分选机，闪蒸干燥系统和调色剂。解决方案：旋风分选机由包括圆柱形外壳和垂直连接到圆柱形外壳的下侧的倒锥形外底的外筒和包括排气出口的内筒构成，其特征在于，减小的横截面面积由外筒内部可选高度的内径缩小的圆柱体或孔形挡板形成，并且内筒的底端位于圆柱形空间（圆柱形部分）的右侧在横截面积减小的情况下。版权所有（C）2007，JPO＆INPIT

3. 发明专利

JP2011123215A Method of manufacturing toner 有权
标题翻译：制造墨粉的方法
公开(公告)号：JP2011123215A
公开(公告)日：2011-06-23
申请号：JP2009279821
申请日：2009-12-09
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： WATANABE JUNICHI , UEHARA KENICHI , KOEDA JUNYA , MISAWA TASUKE , TADA KEISUKE , HIRATA MIYUKI
IPC分类号： G03G9/087
CPC分类号： G03G9/0804 , G03G9/0821 , G03G9/08755
摘要： PROBLEM TO BE SOLVED: To provide a method of manufacturing toner having excellent chargeability and capable of suppressing decrease in the chargeability even when the toner or base particles are exposed to a high-temperature and high-humidity atmosphere.
SOLUTION: The method of manufacturing toner includes steps of: preparing a first liquid by dissolving or dispersing a toner material containing a binder resin and/or a precursor of the binder resin in an organic solvent; preparing a second liquid by dispersing the first liquid in an aqueous medium containing a dispersant; producing particles by removing the organic solvent from the second liquid; washing the particles; preparing a third liquid by dispersing the washed particles in an aqueous medium and heating the second aqueous medium while or after dispersing the washed particles therein; and producing base particles by adding a charge controlling agent to the third liquid. The ratio of the BET specific surface area of the base particles after stored in an environment at 40°C and 70%RH for two weeks to the BET specific surface area of particles included in the third liquid is 0.60 or more and 1.00 or less.
COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：提供一种制造具有优异的带电性的调色剂的方法，并且即使当调色剂或基底颗粒暴露于高温高湿气氛时也能够抑制带电性的降低。解决方案：制造调色剂的方法包括以下步骤：通过将含有粘合剂树脂和/或粘合剂树脂的前体的调色剂材料溶解或分散在有机溶剂中来制备第一液体; 通过将第一液体分散在含有分散剂的水性介质中来制备第二液体; 通过从第二液体中除去有机溶剂来生产颗粒; 洗涤颗粒; 通过将洗涤的颗粒分散在水性介质中并在将洗涤的颗粒分散在其中之后加热第二水性介质来制备第三液体; 并通过向第三液体中加入电荷控制剂来生产基础颗粒。在40℃，70％RH的环境下保存2周后的基础粒子的BET比表面积与包含在第3液体中的粒子的BET比表面积的比例为0.60以上且1.00以下。版权所有（C）2011，JPO＆INPIT

4. 发明专利

JP2009069640A Method for manufacturing electrophotographic toner 有权
标题翻译：制造电子显微镜的方法
公开(公告)号：JP2009069640A
公开(公告)日：2009-04-02
申请号：JP2007239655
申请日：2007-09-14
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： KINOSHITA NAOTOSHI , UEHARA KENICHI , KENJO KENTA
IPC分类号： G03G9/087 , G03G9/08 , G03G9/097
摘要： PROBLEM TO BE SOLVED: To provide a method for manufacturing electrophotographic toner capable of manufacturing an electrophotographic toner which has stable charging property, prevents filming contamination of a photoreceptor, a developing roller, etc., avoids spent on a carrier, and has a beneficial effect on long-term copying property. SOLUTION: In the method for manufacturing an electrophotographic toner, a plurality of stirring members are attached to a rotary shaft so that the stirring members rotate on different three or more circular orbits, each circular orbit having a diameter in a range of 90-1,000 mm, and the stirring members rotate at a peripheral velocity of 10-150 m/s, a clearance C [mm] between at least one of the stirring members and a circular wall surface satisfies a range of 2.5≤D 1/2 /C COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：为了提供一种用于制造能够制造具有稳定带电性的电子照相调色剂的电子照相调色剂的方法，防止感光体，显影辊等的成膜污染，避免在载体上花费，并且具有对长期复制财产有利的影响。解决方案：在电子照相调色剂的制造方法中，多个搅拌构件安装在旋转轴上，使得搅拌构件在不同的三个或更多个圆形轨道上旋转，每个圆形轨道的直径在90°的范围内 -1000mm，搅拌构件以10-150m / s的圆周速度旋转，至少一个搅拌构件与圆形壁面之间的间隙C [mm]满足2.5≤D 1/2 / C <9.0，相对于上述圆轨道中的最大圆轨道的直径D [mm]，以及含有100重量份的加工材料的调色剂基材和0.3-1.0重量份的电荷控制剂在满足Tg-50

5. 发明专利

JP2007155924A Method and apparatus for manufacturing toner 审中-公开
标题翻译：制造调色剂的方法和装置
公开(公告)号：JP2007155924A
公开(公告)日：2007-06-21
申请号：JP2005348400
申请日：2005-12-01
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： UEHARA KENICHI , YOSHIKAWA HIROYUKI , KOEDA JUNYA
IPC分类号： G03G9/087 , G03G9/08 , G03G9/097
摘要： PROBLEM TO BE SOLVED: To provide a method for manufacturing a toner for electrophotography in which charge control agent particles are uniformly fixed near the surfaces of toner base particles containing a low-melting release agent so that they are not released, and to provide a method for manufacturing a toner in which a low-melting material is not further fused on the surfaces of the toner base particles containing the low-melting release agent and the toner particles are therefore protected from being flocculated with each other.
SOLUTION: The method for manufacturing a toner includes fixing a charge control agent on the surfaces of toner base particles by agitation mixing by rotating a rotatory body in a flow agitation type mixing apparatus equipped with the rotatory body having agitating blades to manufacture the objective toner for electrophotography, wherein the agitating blades are impellers radially arranged on the rotatory body and the ratio between the total vertical projected area S1 of the agitating blades and a central vertical cross-section area S2 in the flow agitation type mixing apparatus satisfy the formula: 0.21≥S1/S2≥0.03.
COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：提供一种电子照相用调色剂的制造方法，其中电荷控制剂颗粒均匀地固定在包含低熔点脱模剂的调色剂基础颗粒的表面附近，使得它们不被释放，并且提供一种制造调色剂的方法，其中在含有低熔点脱模剂的调色剂基础颗粒的表面上不再熔融低熔点材料，因此保护调色剂颗粒不被彼此絮凝。解决方案：调色剂的制造方法包括：通过搅拌混合将电荷控制剂固定在调色剂基础颗粒的表面上，该旋转体在配备有具有搅拌叶片的旋转体的流动搅拌型混合装置中旋转，用于电子照相的目标调色剂，其中搅拌叶片是径向布置在旋转体上的叶轮，并且搅拌叶片的总垂直投影面积S1与流动搅拌型混合装置中的中心垂直横截面积S2之间的比率满足式：0.21≥S1/S2≥0.03。版权所有（C）2007，JPO＆INPIT

6. 发明专利

JP2004246334A Method for manufacturing electrophotographic toner 审中-公开
公开(公告)号：JP2004246334A
公开(公告)日：2004-09-02
申请号：JP2003396707
申请日：2003-11-27
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： NOAKI HIROSHI , UEHARA KENICHI , KOEDA JUNYA , KOZU OSAMU , TOMIOKA YASUAKI
IPC分类号： G03G9/08 , G03G9/087
摘要： PROBLEM TO BE SOLVED: To provide a method for manufacturing electrophotographic toner in which particles of an electrification controlling agent are uniformly fixed to at least near the surface of toner mother particles and are hardly separated therefrom. SOLUTION: The method for manufacturing the electrophotographic toner is carried out by using a fluidized agitation type mixer which is equipped with a rotator having at least agitation blades and with a jacket to control temperature by allowing a coolant to flow in the wall part and which has a spheric mixing chamber. The electrophotographic toner is manufactured by stirring and mixing toner mother particles comprising at least a binder resin, a coloring agent and a release agent with an electrification controlling agent by rotating the stirring blades at 65 to 115 m/s stirring rate (peripheral velocity) to fix the electrification controlling agent to the surface of the toner mother particles. COPYRIGHT: (C)2004,JPO&NCIPI

7. 发明专利

JP2006031035A Electrophotographic developer and image forming method 有权
标题翻译：电子显影开发和图像形成方法
公开(公告)号：JP2006031035A
公开(公告)日：2006-02-02
申请号：JP2005235174
申请日：2005-08-15
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： KURODA NOBORU , NAKAMURA YASUSHI , ITO RYOICHI , IWAMOTO YASUTAKA , KATO MITSUTERU , KONDO FUMIO , UEHARA KENICHI , SUGIYAMA SACHIHIRO , SANAI YASUYUKI
IPC分类号： G03G9/08 , G03G5/10 , G03G9/10 , G03G21/10
摘要： PROBLEM TO BE SOLVED: To provide a two-component developer which is good in flowability in spite of a small amount of an additive, is substantially little in photoreceptor contamination and filming, and is good in fixability and further an image forming method which reduces the deterioration of the developer even in high-speed and large-quantity copying and in long-term use, reduces photoreceptor wear and can prevent a cleaning defect and filming.
SOLUTION: In the image forming method having a cleaning means for removing the residual toner on a latent image carrier after transfer, the two-component developer has a magnetic carrier and toner and the weight average grain size of the carrier is 35 to 100 μm. The toner contains 1 to 15 number% toner particles below 5 μm and contains ≥15 wt% toner particles of ≥2 times the diameter of the weight average grain size. The relation between the number average particle diameters D25 and D75 at which the cumulative number distribution attains 25% and 75% is 0.60≤D25/D75≤0.85 and the weight average grain size is 6.0 to 11.5 μm.
COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：为了提供尽管少量添加剂具有良好的流动性的双组分显影剂，在感光体污染和成膜方面基本上很少，并且定影性好，并且还有图像形成方法即使在高速大量的复制和长期使用中也能降低显影剂的劣化，减少感光体的磨损，并且可以防止清洁缺陷和成膜。解决方案：在具有用于在转印后去除潜像载体上的残留调色剂的清洁装置的图像形成方法中，双组分显影剂具有磁性载体和调色剂，载体的重均粒度为35〜 100微米。该调色剂含有1至15个数量％的调色剂颗粒在5μm以下，并且含有≥15重量％的调色剂颗粒，其重均粒径的≥2倍。累积数分布达到25％和75％的数均粒径D25与D75的关系为0.60≤D25/D75≤0.85，重均粒径为6.0〜11.5μm。版权所有（C）2006，JPO＆NCIPI

8. 发明专利

JP2004198553A Method for manufacturing toner for electrostatic charge image development 有权
公开(公告)号：JP2004198553A
公开(公告)日：2004-07-15
申请号：JP2002364417
申请日：2002-12-16
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： KOEDA JUNYA , UEHARA KENICHI , KOZU OSAMU , NOAKI HIROSHI
IPC分类号： G03G9/08 , B01F7/16 , B01F15/06 , G03G9/087 , G03G9/097
摘要： PROBLEM TO BE SOLVED: To provide a method for manufacturing toner for electrostatic charge image development by which an electrification controlling agent can be fixed in a uniform state at a relatively low temperature without dropping to the toner mother particles containing a release agent having low melting point, and the toner has stable electrification property and excellent characteristics for a long time without causing filming contamination on a photoreceptor, a developing roller or the like and carrier spent. SOLUTION: The toner for electrostatic charge image development is manufactured by using a flow agitation type mixing apparatus and by agitating and mixing toner mother particles comprising at least a binder resin, a coloring agent and a release agent with an electrification controlling agent so as to fix the electrification controlling agent on the surfaces of the toner mother particles. The flow agitation type mixing apparatus is equipped with a rotator having at least a stirrer vane and has a spheric treatment tank having at least a cooling jacket and provided with a hollow cylindrical insertion pipe vertically penetrating from the upper part of the treatment tank into the tank. COPYRIGHT: (C)2004,JPO&NCIPI

9. 发明专利

JP2004077593A Method for manufacturing electrophotographic toner 有权
公开(公告)号：JP2004077593A
公开(公告)日：2004-03-11
申请号：JP2002234643
申请日：2002-08-12
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： KOEDA JUNYA , UEHARA KENICHI , YOSHIKAWA HIROYUKI , KOZU OSAMU
IPC分类号： B01F3/06 , B01F7/00 , B01F7/16 , B01F7/26 , B01F15/00 , B01F15/06 , G03G9/08 , G03G9/087 , G03G9/097
CPC分类号： G03G9/081 , B01F7/00241 , B01F7/00383 , B01F7/163 , B01F15/00824 , B01F15/065 , B01F15/068 , B01F2003/066 , B01F2215/0409 , B01F2215/0481 , G03G9/0808
摘要： PROBLEM TO BE SOLVED: To provide a method for manufacturing an electrophotographic toner in which electrostatic charge controlling agent particles are uniformly fixed near the surfaces of toner matrix particles containing a releasing agent which is a low-melting point substance, in which separation of the electrostatic charge controlling agent particles, fusion of the low-melting point material and agglomeration of toner particles are prevented and which is uniform in the amount of electric charges and does not cause deterioration of a developer. SOLUTION: In the method for manufacturing an electrophotographic toner in which toner matrix particles consisting essentially of a binder resin, a colorant and a releasing agent and an electrostatic charge controlling agent are mixed by stirring by rotating a rotator having stirring blades in a fluidized stirring type mixing apparatus fitted with at least the rotator to fix the electrostatic charge controlling agent on the surfaces of the toner matrix particles, the rotator is rotated at 65-120 m/s peripheral speed within the temperature range of Tg-10>T>Tg-35 (T is the temperature (°C) of the internal atmosphere of the apparatus during mixing by stirring and Tg is the glass transition temperature (°C) of the powdery resin). COPYRIGHT: (C)2004,JPO

10. 发明专利

JP2013052358A Reactor, toner production method, and toner 有权
标题翻译：反应器，调色剂生产方法和调色剂
公开(公告)号：JP2013052358A
公开(公告)日：2013-03-21
申请号：JP2011192719
申请日：2011-09-05
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： WATANABE JUNICHI , UEHARA KENICHI
IPC分类号： B01J19/24 , G03G9/087
CPC分类号： B01J8/087 , B01J8/20 , B01J19/2415 , B01J2208/00168 , B01J2208/0084 , B01J2219/00772 , B01J2219/00774 , B01J2219/00777 , B01J2219/185 , B01J2219/1943 , G03G9/0806
摘要： PROBLEM TO BE SOLVED: To provide a toner production method using a reactor which can prevent the deposition of raw materials and the short path problem without specifying the heating temperature in detail, even when slurry including a solid component used as the raw material is heated, and to provide toner produced with the reactor.SOLUTION: The reactor 10, which heats the slurry raw material including the solid component, continuously fed from an end of a reaction tube 100 relative to the central axial direction of the reaction tube to flow, includes plural perforated plates 110 arranged to separate the inside of the reaction tube 100 into plural compartments in the flow direction of raw material. The reactor satisfies the relations (1/2)D'≤D
摘要翻译：要解决的问题：为了提供使用能够防止原料沉积的反应器的调色剂生产方法和没有详细说明加热温度的短路问题，即使使用包含用作原料的固体成分的浆料被加热，并提供用反应器生产的调色剂。解决方案：将从反应管100的端部连续供给的包括固体成分的浆料原料相对于反应管的中心轴方向加热的反应器10包括多个多孔板110，其布置成将反应管100的内部沿原料的流动方向分离成多个隔室。反应器满足关系式（1/2）D'≤D

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