公开(公告)号：JP2009175284A

公开(公告)日：2009-08-06

申请号：JP2008012029

申请日：2008-01-22

Applicant: Sharp Corp ,  シャープ株式会社

Inventor： MATSUMOTO KATSURU ,  KIKAWA KEIICHI ,  NAGAOKA AYAE

IPC: G03G9/08 ,  G03G9/087 ,  G03G15/08

Abstract: PROBLEM TO BE SOLVED: To provide a toner which can sufficiently maintain mechanical strength and improve fixability to prevent offset, and can obtain high-quality images less in image fogging over a long period of time, and to provide a method for manufacturing the toner, a developer, a developing device for carrying out a development by using the developer, and an image forming apparatus with the developing device. SOLUTION: The toner contains at least a colorant, a binder resin and a wax, wherein the binder resin contains at least one of a polyester resin and a polyether polyol resin, and the wax is included in the toner particles and has a melting point of 70°C to 150°C and a melt viscosity of 50 mPa s to 10,000 mPa s at 140°C. In the image forming apparatus 1, a developing tank 20 of a developing device 14 is filled with the toner to form an image. COPYRIGHT: (C)2009,JPO&INPIT

Abstract translation: 要解决的问题：提供能够充分保持机械强度并提高定影性以防止偏移的调色剂，并且可以在长时间内获得较少图像雾化的高质量图像，并提供制造方法 调色剂，显影剂，用于通过使用显影剂进行显影的显影装置，以及具有显影装置的图像形成装置。 调色剂至少含有着色剂，粘合剂树脂和蜡，其中粘合剂树脂含有聚酯树脂和聚醚多元醇树脂中的至少一种，蜡包含在调色剂颗粒中，并且具有 熔点为70℃〜150℃，熔融粘度为50mPa·s〜140mPa·s。 在图像形成装置1中，显影装置14的显影槽20填充有调色剂以形成图像。 版权所有（C）2009，JPO＆INPIT

公开(公告)号：JP2009042476A

公开(公告)日：2009-02-26

申请号：JP2007207068

申请日：2007-08-08

Applicant: Sharp Corp ,  シャープ株式会社

Inventor： MATSUMOTO KATSURU ,  KIKAWA KEIICHI ,  MAEZAWA YOSHIHIRO

IPC: G03G9/087

CPC classification number: G03G9/0806 ,  G03G9/0804

Abstract: PROBLEM TO BE SOLVED: To provide a method for manufacturing a toner particle capable of reducing cost by simplifying a manufacturing device and by reducing the number of processes, the toner particle, a binary developer, a developing device, and an image forming apparatus. SOLUTION: A high-pressure homogenizer 1 is constituted by arraying a tank 2, a feed pump 3, a high pressure pump 4, a heat exchanger 5, a nozzle 10, the first decompression module 6, a cooling machine 7, the second decompression module 8, and a taking-out port 9 in this order. The first decompression module 6 has a linear portion wherein a flow channel constituted in its inside is inclined with respect to a flow-passing direction of an aqueous slurry, and a portion for moderating a flow of the aqueous slurry. A particle size of flocculated particles can be controlled by simultaneously generating a flow contributing to flocculation and a flow contributing to formation of fine particulate inside the first decompression module 6. COPYRIGHT: (C)2009,JPO&INPIT

Abstract translation: 要解决的问题：提供一种通过简化制造装置并且通过减少工艺数量，调色剂颗粒，二元显影剂，显影装置和图像形成来降低成本的调色剂颗粒的制造方法 仪器。 解决方案：高压均质器1通过排出罐2，进料泵3，高压泵4，热交换器5，喷嘴10，第一减压组件6，冷却机7， 第二解压缩模块8和取出口9。 第一减压组件6具有直线部分，其中在其内部构成的流动通道相对于水性浆料的流动方向倾斜，以及用于调节含水浆料流动的部分。 可以通过同时产生有助于絮凝的流动和有助于在第一减压模块6内形成细颗粒的流动来控制絮凝颗粒的粒径。（C）2009，JPO和INPIT

公开(公告)号：JP2009025794A

公开(公告)日：2009-02-05

申请号：JP2008107336

申请日：2008-04-16

Applicant: Sharp Corp ,  シャープ株式会社

Inventor： NAGAOKA AYAE ,  ARIYOSHI SATOSHI ,  IWAMATSU TADASHI ,  MATSUMOTO KATSURU

IPC: G03G9/08 ,  G03G9/087 ,  G03G9/09

Abstract: PROBLEM TO BE SOLVED: To provide a toner composed of small particles which excels in a cleaning property, a transferring property and charge uniformity, a method of manufacturing the toner, a two-component developer, a developing device, and an image forming apparatus.
SOLUTION: The toner contains a binder resin and a colorant, and the outline of a projected image in which the external shape is projected on a plane surface has one or more and three or less bending points. Consequently the toner has a non-spherical external shape, and therefore it is caught easily by a cleaning blade. Further it comes into point contact with an object to be transferred, it achieves both of cleaning property and transferring property.
COPYRIGHT: (C)2009,JPO&INPIT

Abstract translation: 要解决的问题：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，双组分显影剂，显影装置和图像 成型装置。 调色剂含有粘合剂树脂和着色剂，外观形状投影在平面上的投影图像的轮廓具有一个或多个和三个或更少的弯曲点。 因此，调色剂具有非球形的外部形状，因此易于被清洁刮板卡住。 此外，它与要转移的物体形成点接触，它实现了清洁性能和转印性能。 版权所有（C）2009，JPO＆INPIT

公开(公告)号：JP2008116503A

公开(公告)日：2008-05-22

申请号：JP2006297029

申请日：2006-10-31

Applicant: Sharp Corp ,  シャープ株式会社

Inventor： KIKAWA KEIICHI ,  SHIBAI YASUHIRO ,  MATSUMOTO KATSURU

IPC: G03G9/087

Abstract: PROBLEM TO BE SOLVED: To provide a method for producing flocculated particles where, in an emulsification/flocculation process where resin particles are flocculated, so as to obtain flocculated particles, the generation of the overflocculation of the resin particles is prevented, and the reduction in the size of the flocculated particles and the narrowing of the grain size distribution width of the flocculated particles can be securely achieved. SOLUTION: In a dispersing stage, resin particles are dispersed into a water base medium, so as to produce the slurry of the resin particles, and, in a flocculating stage, a flocculant for flocculating the resin particles and hardly soluble inorganic particles are added to the slurry of the resin particles obtained in the dispersing stage, so as to flocculate the resin particles. In this way, the hardly soluble inorganic particles function as a spacer, and the phenomenon that the resin particles are rapidly flocculated when the dispersant is added to the slurry of the resin particles can be prevented. COPYRIGHT: (C)2008,JPO&INPIT

Abstract translation: 要解决的问题提供一种生产絮凝颗粒的方法，其中在乳化/絮凝过程中树脂颗粒絮凝以获得絮凝颗粒，防止了树脂颗粒过度絮凝的产生，以及 可以可靠地实现絮凝颗粒的尺寸的减小和絮凝颗粒的粒度分布宽度的变窄。 解决方案：在分散阶段，将树脂颗粒分散在水基介质中，以产生树脂颗粒的浆料，并且在絮凝阶段中，用于使树脂颗粒和难溶的无机颗粒絮凝的絮凝剂 加入到分散阶段得到的树脂颗粒的浆料中，使树脂颗粒絮凝。 以这种方式，难溶性无机颗粒起隔离剂的作用，并且可以防止当将分散剂加入到树脂颗粒的浆液中时树脂颗粒迅速絮凝的现象。 版权所有（C）2008，JPO＆INPIT

公开(公告)号：JP2008065180A

公开(公告)日：2008-03-21

申请号：JP2006244724

申请日：2006-09-08

Applicant: Sharp Corp ,  シャープ株式会社

Inventor： KIKAWA KEIICHI ,  MATSUMOTO KATSURU ,  MAEZAWA YOSHIHIRO

IPC: G03G9/087 ,  G03G9/08

CPC classification number: G03G9/09392 ,  G03G9/09307 ,  G03G9/09314 ,  G03G9/09321 ,  G03G9/09357 ,  G03G9/09371

Abstract: PROBLEM TO BE SOLVED: To provide a method where, when a covering layer composed of shell particles is formed on the surfaces of core particles, so as to produce functional particles, the functional particles having uniform shape, suitably small-sized, having a narrow particle size distribution width, and having reduced variation of characteristics can be produced at a high yield. SOLUTION: The functional particles are produced by a production method comprising a flocculating stage S11, a pressure-reducing stage S12 and a cooling stage S13. In the flocculating stage S11, water base slurry comprising core particles and shell particles is made to flow through coil-shaped piping in a heated-pressurized state, and the shell particles are stuck to the surfaces of the core particles, so as to obtain functional particles. In the pressure-reducing stage S12, particle size regulation of the functional particles and the cracking of coarse particles are performed, so as to uniformize the particle diameter of the functional particles. In the cooling stage S13, the reflocculation of the functional particles whose particle diameter has been uniformized is prevented. COPYRIGHT: (C)2008,JPO&INPIT

Abstract translation: 要解决的问题：提供一种方法，其中当在核心颗粒的表面上形成由壳颗粒构成的覆盖层以产生功能性颗粒时，具有均匀形状，适当小尺寸的功能颗粒， 具有窄的粒度分布宽度，并且可以高产率地产生特性变化的降低。 解决方案：功能颗粒通过包括絮凝载物台S11，减压级S12和冷却级S13的制备方法制备。 在絮凝工序S11中，使包含芯粒子和壳粒子的水基浆料以加热加压的状态流过线圈状配管，将壳粒粘贴在芯粒子的表面，得到功能性 粒子。 在减压阶段S12中，进行功能粒子的粒度调整和粗粒子的裂化，使功能性粒子的粒径均匀化。 在冷却阶段S13中，防止粒径均匀化的功能性粒子的再结晶。 版权所有（C）2008，JPO＆INPIT

公开(公告)号：JP2007279713A

公开(公告)日：2007-10-25

申请号：JP2007067586

申请日：2007-03-15

Applicant: Sharp Corp ,  シャープ株式会社

Inventor： ARIYOSHI SATOSHI ,  KAWASE NORITAKA ,  KIKAWA KEIICHI ,  MATSUMOTO KATSURU

IPC: G03G9/087

Abstract: PROBLEM TO BE SOLVED: To manufacture a toner having a small particle size that is effective in obtaining higher definition and higher resolution of an image without increasing the consumption of a water-soluble dispersant, that is, without increasing the frequency of cleaning works after toner granulation in the process of manufacturing a toner by a melt emulsification. SOLUTION: The method for manufacturing a toner for electrostatic charge image development includes a granulation step by a melt emulsification, wherein a thickener is incorporated into an aqueous solution of a water-soluble dispersant to be mixed with a melt kneaded product of a toner source material. When the melt kneaded product is mixed with an aqueous solution of the water-soluble dispersant containing the thickener in an emulsifying machine 1, the shearing stress defined by μ*(π*D*N)/d is controlled to 5.5×10 6 cP/s or more, wherein μ represents the viscosity of an aqueous solution of the water-soluble dispersant containing the thickener at 25°C; π represents the circular ratio; D represents the diameter of a stirring blade 15; N represents the number of revolutions of the stirring blade 15; and d represents the gap length between the stirring blade 15 and a stator 12. COPYRIGHT: (C)2008,JPO&INPIT

Abstract translation: 要解决的问题：制造具有小颗粒尺寸的调色剂，其有效获得更高分辨率和更高分辨率的图像，而不增加水溶性分散剂的消耗，即不增加清洗频率 在通过熔融乳化制造调色剂的过程中在调色剂造粒之后工作。 解决方案：静电荷图像显影用调色剂的制造方法包括通过熔融乳化的造粒步骤，其中将增稠剂掺入水溶性分散剂的水溶液中，与水溶性分散剂的熔融捏合产物 调色剂源材料。 当在乳化机1中将熔融捏合产物与含有增稠剂的水溶性分散剂的水溶液混合时，将由μ*（π* D * N）/ d定义的剪切应力控制在5.5×10 6P / s以上，其中μ表示在25℃下含有增稠剂的水溶性分散剂的水溶液的粘度; π表示圆周比; D表示搅拌叶片15的直径; N表示搅拌叶片15的转速; d表示搅拌叶片15和定子12之间的间隙长度。（C）2008，JPO＆INPIT

公开(公告)号：JP2007193047A

公开(公告)日：2007-08-02

申请号：JP2006010391

申请日：2006-01-18

Applicant: Sharp Corp ,  シャープ株式会社

Inventor： MATSUMOTO KATSURU ,  SHIBAI YASUHIRO ,  ARIYOSHI SATOSHI

IPC: G03G9/087 ,  G03G9/08 ,  G03G9/09

Abstract: PROBLEM TO BE SOLVED: To provide a method for manufacturing a toner by which the dispersibility of a colorant and internal additives is improved without using a masterbatch, so that a toner having stated performance can stably be manufactured. SOLUTION: At a step s2, a kneaded product is formed by kneading toner materials including a binder resin and composite particles produced at a step s1, such as composite particles obtained by covering wax particles with colorant particles in a state where the binder resin is melted or softened. At a step s4, toner particles are obtained by dispersing the kneaded product obtained at the step s2 in a melted or softened state in an aqueous medium produced at a step s3. COPYRIGHT: (C)2007,JPO&INPIT

Abstract translation: 要解决的问题：提供一种调色剂的制造方法，通过该调色剂可以改善着色剂和内部添加剂的分散性，而不使用母料，从而可以稳定地制造具有所述性能的调色剂。 解决方案：在步骤s2中，通过捏合包括粘合剂树脂的调色剂材料和在步骤s1制备的复合颗粒，例如通过将蜡颗粒与着色剂颗粒覆盖而获得的复合颗粒在粘合剂 树脂熔化或软化。 在步骤s4中，通过将在步骤s2中获得的捏合产物在熔融或软化状态下分散在步骤s3生产的水性介质中来获得调色剂颗粒。 版权所有（C）2007，JPO＆INPIT

公开(公告)号：JP2007187834A

公开(公告)日：2007-07-26

申请号：JP2006005235

申请日：2006-01-12

Applicant: Sharp Corp ,  シャープ株式会社

Inventor： MATSUMOTO KATSURU ,  SHIBAI YASUHIRO

IPC: G03G9/08 ,  G03G9/087

CPC classification number: G03G9/081 ,  B08B7/0021 ,  G03G9/0808 ,  G03G9/0815 ,  G03G9/0817 ,  G03G9/08755 ,  G03G9/08782 ,  G03G9/08791 ,  G03G9/08795 ,  G03G9/08797

Abstract: PROBLEM TO BE SOLVED: To provide a mold releasing agent for achieving toner superior in off-set resistance and filming resistance without being separated from a kneaded matter even when granulating to heat a dispersion medium including the kneaded matter, and to provide the toner using the mold releasing agent and its manufacturing method. SOLUTION: In step s1, when at least a binder resin, a coloring agent, and a mold releasing agent are melted and kneaded to prepare the kneaded matter, the mold releasing agent including a phase dissoluble part phase dissoluble with the binder resin and a mold releasing part having mold releasing by being chemically bound to the phase dissoluble part is used as the mold releasing agent. Thereby, in step s3, the kneaded matter is mixed with an aqueous medium prepared in step s2, and when being heated and agitated to produce kneaded mater particles being toner particles, the mold releasing agent can be prevented from being separated from the kneaded matter. COPYRIGHT: (C)2007,JPO&INPIT

Abstract translation: 解决的问题：提供一种脱模剂，即使在造粒以加热包含该捏合物的分散介质的情况下，也不会与捏合物分离，从而获得具有优异的抗静电性和耐成膜性的调色剂，并提供 使用脱模剂的调色剂及其制造方法。 解决方案：在步骤s1中，当至少粘合剂树脂，着色剂和脱模剂熔融并捏合以制备捏合物时，脱模剂包括可溶于粘合剂树脂的相溶解部分相 并且使用具有通过化学键合到相溶解部分的脱模的脱模部件作为脱模剂。 因此，在步骤s3中，将捏合物与步骤s2中制备的水性介质混合，并且当加热和搅拌以产生作为调色剂颗粒的捏合颗粒时，可以防止脱模剂与捏合物分离。 版权所有（C）2007，JPO＆INPIT

公开(公告)号：JP2007041317A

公开(公告)日：2007-02-15

申请号：JP2005225850

申请日：2005-08-03

Applicant: Sharp Corp ,  シャープ株式会社

Inventor： SHIBAI YASUHIRO ,  MATSUMOTO KATSURU

IPC: G03G9/087

CPC classification number: G03G9/08711 ,  G03G9/0806

Abstract: PROBLEM TO BE SOLVED: To provide a method for manufacturing a toner which facilitates the formation of the toner to a smaller particle diameter without the occurrence of the thermal cracking of a resin and the elimination of a release agent, is excellent in dependency on moisture resistance, and hardly gives rise to toner aggregation.
SOLUTION: The toner is manufactured by applying a shearing force to a mixture composed of a colored resin composition and an organic solvent in the presence of a high molecular dispersant of 8.5 to 10 in an SP value and 50 to 80°C in glass transition temperature in a hydrophobic medium to make the mixture into particles and distilling away the organic solvent from the particles, then separating the toner from the hydrophobic medium and drying the toner.
COPYRIGHT: (C)2007,JPO&INPIT

Abstract translation: 要解决的问题：为了提供一种调色剂的制造方法，其使调色剂形成更小的粒径，而不会发生树脂的热裂纹和脱模剂的消除，因此具有优异的依赖性 耐湿性，几乎不引起调色剂聚集。 解决方案：调色剂通过在高分子分散剂8.5至10的SP值和50至80℃的高分子分散剂存在下，将剪切力施加到由着色树脂组合物和有机溶剂组成的混合物中 在疏水介质中的玻璃化转变温度以使混合物成为颗粒并从颗粒中蒸馏掉有机溶剂，然后将调色剂与疏水介质分离并干燥调色剂。 版权所有（C）2007，JPO＆INPIT

公开(公告)号：JP2005172941A

公开(公告)日：2005-06-30

申请号：JP2003409383

申请日：2003-12-08

Applicant: Sharp Corp ,  シャープ株式会社

Inventor： MATSUMOTO KATSURU ,  AIMOTO TOYOYOSHI

IPC: G03G9/08 ,  G03G15/08

Abstract: PROBLEM TO BE SOLVED: To provide a nonmagnetic one-component development apparatus equipped with such a developer regulating means which can prevent image deterioration by forming a uniform developer coating layer stable for a long period on a developer carrier and has improved durability and a toner used for the same. SOLUTION: In the nonmagnetic one-component development apparatus, the toner is formed by attaching a conductive developer release layer to be installed to a region which is a portion of the developer regulating means and comes into contact with at least the developer and by incorporating silica having an average primary grain size of 16 to 28 nm and having a specified relation in the respective numbers A, B and C existing within three grain size ranges into the toner of 0.960 to 1.0 in average circularity and ≤0.040 in standard deviation of the circularity. COPYRIGHT: (C)2005,JPO&NCIPI

Abstract translation: 要解决的问题：提供一种配备有这样的显影剂调节装置的非磁性单组分显影装置，其可以通过在显影剂载体上形成长期稳定的均匀的显影剂涂层来防止图像劣化，并且具有改善的耐久性和 用于其的调色剂。 解决方案：在非磁性单组分显影装置中，通过将待安装的导电显影剂释放层附着到作为显影剂调节装置的一部分的区域并与至少显影剂接触而形成调色剂， 通过将平均一次粒径为16〜28nm的二氧化硅与在三个粒度范围内存在的各个数量A，B，C中的规定关系并入平均圆形度为0.960〜1.0，标准偏差≤0.040的调色剂中 的圆度。 版权所有（C）2005，JPO＆NCIPI