公开(公告)号：JP2012215789A

公开(公告)日：2012-11-08

申请号：JP2011082303

申请日：2011-04-01

Applicant: Sharp Corp ,  シャープ株式会社

Inventor： MATSUMOTO KATSURU ,  TSUKIYAMA TAKESHI

IPC: G03G9/08 ,  G03G9/087

Abstract: PROBLEM TO BE SOLVED: To provide a manufacturing method of capsule toner which can obtain capsule toner formed with a uniform resin coating layer with a high yield and capsule toner.SOLUTION: The manufacturing method of capsule toner employs: a container body 1; a rotational agitating means 6 provided with a rotating shaft 9, a disc-shaped base part 2 vertically fixed to the rotating shaft 9, and a plurality of projection parts 5a and 5b vertically arranged on the base part 2; and a film formation device 10 including gas supply means for supplying a gas into an internal space 3. With this film formation device 10 employed, the rotational driving of the base part 2 around the rotating shaft 9 in the internal space 3 of the container body 1 and the supplying of the gas into the internal space 3 by the gas supply means allow toner base particles and resin fine particles to circulate in a direction parallel to the base part 2 so that the resin fine particles are converted into a film on the surface of the toner base particles.

Abstract translation: 要解决的问题：提供一种胶囊调色剂的制造方法，该胶囊调色剂可以获得以高产率的均匀树脂涂层形成的胶囊调色剂和胶囊调色剂。 胶囊调色剂的制造方法：容器主体1; 设置有旋转轴9的旋转搅拌装置6，垂直固定在旋转轴9上的圆盘状基部2，以及垂直配置在基部2上的多个突出部5a，5b; 以及成膜装置10，其包括用于将气体供给到内部空间3中的气体供给装置。利用该成膜装置10，基部2在容器主体的内部空间3中的旋转轴9周围的旋转驱动 如图1所示，并且通过气体供给装置将气体供应到内部空间3中，允许调色剂基础颗粒和树脂细颗粒在平行于基部2的方向上循环，使得树脂细颗粒在表面上转变成膜 的调色剂基础颗粒。 版权所有（C）2013，JPO＆INPIT

公开(公告)号：JP2010175752A

公开(公告)日：2010-08-12

申请号：JP2009017369

申请日：2009-01-28

Applicant: Sharp Corp ,  シャープ株式会社

Inventor： MATSUMOTO KATSURU ,  SHIBAI YASUHIRO

IPC: G03G9/087 ,  G03G15/08

Abstract: PROBLEM TO BE SOLVED: To provide a method for producing a toner, for obtaining a toner having uniform particle size distribution by uniformly agitating the toner material in aggregation, and to provide a toner, a two-component developer, a developing device and an image forming apparatus. SOLUTION: A dispersion liquid having fine particles dispersed therein is agitated in an aggregation step by using an agitation blade having a plurality of rotor blades and an agitation vessel having a plurality of planar or cylindrical baffle plates on a vessel wall. The agitation blade has: a specified dimension; the agitation blade and the baffle plates are disposed in a specified relation; and the agitation blade is placed at a specified position in the agitation vessel. COPYRIGHT: (C)2010,JPO&INPIT

Abstract translation: 要解决的问题：提供一种调色剂的制造方法，用于通过均匀搅拌聚集中的调色剂材料获得具有均匀粒度分布的调色剂，并提供调色剂，双组分显影剂，显影装置 和图像形成装置。 解决方案：通过使用具有多个转子叶片的搅拌叶片和在容器壁上具有多个平面或圆柱形挡板的搅拌容器，在聚集步骤中搅拌其中分散有细颗粒的分散液。 搅拌叶片具有：指定的尺寸; 搅拌叶片和挡板以规定的关系设置; 将搅拌叶片放置在搅拌容器内的指定位置。 版权所有（C）2010，JPO＆INPIT

公开(公告)号：JP2009249579A

公开(公告)日：2009-10-29

申请号：JP2008101962

申请日：2008-04-09

Applicant: Sharp Corp ,  シャープ株式会社

Inventor： MATSUMOTO KATSURU ,  KIKAWA KEIICHI ,  NAGAOKA AYAE

IPC: C08J3/12 ,  G03G9/08 ,  G03G9/087

CPC classification number: G03G9/0827 ,  G03G9/0804 ,  G03G9/0819 ,  G03G9/08795 ,  G03G9/08797

Abstract: PROBLEM TO BE SOLVED: To provide an economical and convenient method capable of obtaining a very small resin particle, in detail, a resin particle having a micron to submicron of particle size, free from a problem and a defect caused by production using a conventional device according to a conventional production method, a resin particle produced by the method, toner and a developer containing the resin particle, and a developing device and an image forming device for forming an image using the developer. SOLUTION: The spherical particle is produced by the production method for the spherical particle including a crushing process. A dispersion liquid of a treating object coarse particle containing a polymer dispersant and dispersed with the coarse particle of a treating object in a liquid medium is passed through a high-pressure homogenizer having a stepwise pressure releasing mechanism, in the crushing process, and the coarse particle is formed into fine particles, under the condition where a melt viscosity of the dispersion liquid gets to 5,000 cP or less in a time point of passing a nozzle part of the high-pressure homogenizer. COPYRIGHT: (C)2010,JPO&INPIT

Abstract translation: 要解决的问题：为了提供一种能够获得非常小的树脂颗粒的经济和方便的方法，具体地说，是具有微米至亚微米级的粒径的树脂颗粒，没有问题，并且由使用 根据常规生产方法的常规装置，通过该方法生产的树脂颗粒，调色剂和含有树脂颗粒的显影剂，以及显影装置和使用显影剂形成图像的图像形成装置。 解决方案：通过包括破碎过程的球形颗粒的制备方法制备球形颗粒。 在液体介质中含有聚合物分散剂和处理对象粗粒分散的处理对象粗粒子的分散液在破碎过程中通过具有逐步压力释放机构的高压均化器，粗粉碎 在通过高压均化器的喷嘴部的时间点使分散液的熔融粘度达到5000cP以下的条件下，将颗粒形成为细颗粒。 版权所有（C）2010，JPO＆INPIT

公开(公告)号：JP2009222940A

公开(公告)日：2009-10-01

申请号：JP2008066791

申请日：2008-03-14

Applicant: Sharp Corp ,  シャープ株式会社

Inventor： KIKAWA KEIICHI ,  NAGAOKA AYAE ,  MATSUMOTO KATSURU

IPC: G03G9/08 ,  G03G9/087

CPC classification number: G03G9/0819 ,  G03G9/0821 ,  G03G9/0827

Abstract: PROBLEM TO BE SOLVED: To provide toner capable of forming a high-definitionimage of high quality, by fully restraining the toner from being splashed, and by restraining new toner particles from being generated in a developing device, and to provide a method of manufacturing the toner, a developer, the developing device, and an image forming device provided therewith. SOLUTION: This toner contains a plurality of toner particles, containing a binder resin and a coloring agent, a content of small size particles of the toner particles having 0.5 μm-2.0 μm of circle-equivalent diameter is 5 number% or less with respect to total toner particles, in measurement by a flow particle image analyzer; a content of medium size particles C of the toner particles having a circle-equivalent diameter more than 2.0 μm and 4.0 μm or less is 20 number% or more to 30 number% or less with respect to total toner particles; a content of large size particles D of the toner particles having a circle-equivalent diameter of more than 4.0 μm and 6.0 μm or less is 50 number% or more to 70 number% or less with respect to total toner particles; and a shape factor SF1 of the toner particle is 130 or more to 140 or less. COPYRIGHT: (C)2010,JPO&INPIT

Abstract translation: 要解决的问题：通过完全限制调色剂飞溅，并且通过抑制在显影装置中产生新的调色剂颗粒，提供能够形成高质量的高清晰图像的调色剂，并且提供一种方法 制造调色剂，显影剂，显影装置以及与其成像的图像形成装置。 解决方案：该调色剂含有多个含有粘合剂树脂和着色剂的调色剂颗粒，具有圆当量直径为0.5μm-2.0μm的调色剂颗粒的小尺寸颗粒的含量为5个数％以下 相对于总调色剂颗粒，通过流动颗粒图像分析仪测量; 圆当量直径大于2.0μm和4.0μm以下的调色剂颗粒的中等粒度C的含量相对于总调色剂颗粒为20数量％以上至30数量％以下; 圆当量直径大于4.0μm和6.0μm以下的调色剂颗粒的大粒径D的含量相对于总调色剂颗粒为50数％以上至70数量％以下; 调色剂颗粒的形状系数SF1为130以上且140以下。 版权所有（C）2010，JPO＆INPIT

公开(公告)号：JP2008281787A

公开(公告)日：2008-11-20

申请号：JP2007126069

申请日：2007-05-10

Applicant: Sharp Corp ,  シャープ株式会社

Inventor： KIKAWA KEIICHI ,  SHIBAI YASUHIRO ,  MATSUMOTO KATSURU

IPC: G03G9/087 ,  G03G9/08

Abstract: PROBLEM TO BE SOLVED: To provide a method of efficiently producing a toner having a narrow width of a particle size distribution and a uniform shape. SOLUTION: Slurry supplied into an agitation vessel 2 and containing a raw material for the toner and a fluid medium, or slurry containing a substance to be melt-kneaded and the fluid medium are heated until the liquid temperature becomes at a level of Tg by a heating means 6 while passing through a liquid-supply tube 5 (a first uniting process). When the liquid temperature reaches Tg, the slurry moves to a second uniting region 7 provided with an in-line type mixer for adding shear force to the slurry, wherein the mixer includes an agitation blade 8 and a motor 9. The raw material for the toner and the substance to be melt-kneaded are aggregated and united by adding the shear force thereto under the temperature of Tg or higher (a second uniting process). Next, the slurry moves to a first cooling region 10, where the slurry is cooled down to Tg while adding the shear force (a first cooling process). Thereafter, the slurry is cooled down from Tg to a normal temperature by the cooling means 13 while passing through a liquid-discharge tube 14 (a second cooling process), and is discharged from the liquid-discharge opening 15, and the toner is obtained by sorting the toner from the slurry and drying it. COPYRIGHT: (C)2009,JPO&INPIT

Abstract translation: 要解决的问题：提供一种有效地生产具有窄的粒度分布宽度和均匀形状的调色剂的方法。 解决方案：将供应到搅拌容器2中并含有用于调色剂的原料和流体介质的浆料或含有待熔融捏合的物质的浆料，并且加热流体介质直至液体温度达到 Tg通过加热装置6同时通过液体供应管5（第一联合过程）。 当液体温度达到Tg时，浆料移动到具有在线式混合器的第二联合区域7，用于向浆料添加剪切力，其中混合器包括搅拌叶片8和马达9.用于 调色剂和待熔融捏合的物质通过在Tg或更高的温度（第二联合过程）下向其中加入剪切力而聚集和结合。 接下来，浆料移动到第一冷却区域10，在该第一冷却区域10中，浆料被冷却至Tg同时加入剪切力（第一冷却过程）。 此后，在通过液体排出管14（第二冷却过程）的同时，通过冷却装置13将浆料从Tg冷却至常温，并从排液口15排出，得到调色剂 通过从浆料中分选调色剂并将其干燥。 版权所有（C）2009，JPO＆INPIT

公开(公告)号：JP2008197287A

公开(公告)日：2008-08-28

申请号：JP2007031300

申请日：2007-02-09

Applicant: Sharp Corp ,  シャープ株式会社

Inventor： MATSUMOTO KATSURU ,  KIKAWA KEIICHI ,  MAEZAWA YOSHIHIRO

IPC: G03G9/08

Abstract: PROBLEM TO BE SOLVED: To provide an electrophotographic capsule toner achieving both fixability and storage stability, without causing blocking and filming, while stably forming a high quality image free from image defects such as void and image fogging. SOLUTION: In the electrophotographic capsule toner comprising core particles and a shell layer covering the surface of each core particle, as the material at least composing the shell layer, a polyether polyol resin is used, and, as the material composing the core particles, a synthetic resin of a kind different from the polyether polyol resin is used. COPYRIGHT: (C)2008,JPO&INPIT

Abstract translation: 要解决的问题：为了提供既可以稳定地形成没有图像缺陷（如空白和图像雾化）的高质量图像的静电胶囊调色剂既可以实现定影性和储存稳定性，而不会发生阻塞和成膜。 解决方案：在包含芯颗粒的电子照相胶囊调色剂和覆盖每个芯颗粒的表面的壳层中，至少构成壳层的材料使用聚醚多元醇树脂，并且作为构成芯的材料 使用与聚醚多元醇树脂不同的一种合成树脂。 版权所有（C）2008，JPO＆INPIT

公开(公告)号：JP2008185740A

公开(公告)日：2008-08-14

申请号：JP2007018589

申请日：2007-01-29

Applicant: Sharp Corp ,  シャープ株式会社

Inventor： MATSUMOTO KATSURU ,  KIKAWA KEIICHI ,  SHIBAI YASUHIRO

IPC: G03G9/087

Abstract: PROBLEM TO BE SOLVED: To provide electrophotograph toner which is excellent in uniformity of coloring property and charging property by improving the dispersibility of the coloring agents in the toner particles, and its manufacturing method.
SOLUTION: When manufacturing electrophotograph toner containing a binder resin and coloring agents by using a coloring agent dispersed liquid, this manufacturing method uses, as the coloring agent dispersed liquid, a dispersed liquid which disperses fine coloring agent particles in a liquid medium after obtaining those particles by processing a mixture of coloring agents and a liquid medium in a high pressure homogenizer 1 having a reduced pressure module 7.
COPYRIGHT: (C)2008,JPO&INPIT

Abstract translation: 要解决的问题：通过提高着色剂在调色剂颗粒中的分散性，提供着色性和充电性均匀性优异的电子照相调色剂及其制造方法。 解决方案：通过使用着色剂分散液体制造含有粘合剂树脂和着色剂的电子照相调色剂时，该制造方法使用将着色剂颗粒分散在液体介质中的分散液作为着色剂分散液， 通过在具有减压模块7的高压均化器1中处理着色剂和液体介质的混合物来获得这些颗粒。版权所有（C）2008，JPO＆INPIT

公开(公告)号：JP2008122623A

公开(公告)日：2008-05-29

申请号：JP2006306032

申请日：2006-11-10

Applicant: Sharp Corp ,  シャープ株式会社

Inventor： MAEZAWA YOSHIHIRO ,  MATSUMOTO KATSURU ,  KIKAWA KEIICHI

IPC: G03G9/087 ,  B01F17/02 ,  B01F17/12 ,  B01F17/14 ,  B01F17/52

CPC classification number: G03G9/081 ,  G03G9/08755

Abstract: PROBLEM TO BE SOLVED: To provide a method for producing aggregated particles by which aggregated particles having high mechanical strength, a small particle diameter and a small particle size distribution width can be obtained by preventing bubbles from entering into aggregated particles in stirring, and to provide an electrophotographic toner. SOLUTION: A resin particle slurry 2 prepared by dispersing resin particles in an aqueous medium and housed in a stirring vessel is stirred by a stirring means 3 having a stirring member 6 and two or more screen members 7, 8, 9 arranged around the stirring member 6 in the stirring vessel 1 to form a plurality of slurry passage holes 15, whereby the resin particles are aggregated to produce aggregated particles. COPYRIGHT: (C)2008,JPO&INPIT

Abstract translation: 待解决的问题：为了提供一种凝集颗粒的制造方法，通过在搅拌下防止气泡进入凝集颗粒，可以获得具有高机械强度，小粒径和小粒径分布宽度的凝集颗粒， 并提供电子照相调色剂。 解决方案：通过将树脂颗粒分散在水性介质中并容纳在搅拌容器中制备的树脂颗粒浆料2通过具有搅拌构件6和两个或更多个筛网构件7,8,9排列的搅拌装置3进行搅拌 搅拌容器1中的搅拌构件6，以形成多个浆料通过孔15，由此树脂颗粒聚集以产生凝集颗粒。 版权所有（C）2008，JPO＆INPIT

公开(公告)号：JP2008055415A

公开(公告)日：2008-03-13

申请号：JP2007200196

申请日：2007-07-31

Applicant: Sharp Corp ,  シャープ株式会社

Inventor： KIKAWA KEIICHI ,  MATSUMOTO KATSURU ,  SHIBAI YASUHIRO

IPC: B01F17/52 ,  B01D21/01 ,  G03G9/08 ,  G03G9/087

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

Abstract: PROBLEM TO BE SOLVED: To provide a toner production method which enables production by a simple production method, by neither exposing colorant particles and wax particles on the surface despite of the toner being an aggregate of fine resin-containing particles, nor having a variation in a colorant content and a wax content. SOLUTION: The toner in the form of the aggregate of resin-containing particles is produced by aggregating the resin-containing particles which contain a binder resin and the colorant using an aggregate dispersant containing a polymer 1 in which anionic polar groups 2a, 2b and 2c are bonded to a main chain 3, and a salt of a divalent or higher valent metal. Specifically, the salt of the divalent or higher valent metal is loaded to a slurry of the resin-containing particles so that a metal ion 4 and the anionic polar group 2a are bonded, and a temperature of the slurry is increased so that a bond between the anionic polar group 2b and a water molecule is broken. This decreases water-solubility of the polymer 1 so that the resin-containing particles are aggregated. COPYRIGHT: (C)2008,JPO&INPIT

Abstract translation: 要解决的问题：为了提供一种通过简单的制备方法制备的调色剂生产方法，即使调色剂是含有细树脂的颗粒的聚集体，也不将表面上的着色剂颗粒和蜡颗粒暴露在表面上，也不具有 着色剂含量和蜡含量的变化。 解决方案：含树脂颗粒聚集形式的调色剂是通过使用含有聚合物1的聚合物分散剂聚集含有粘合剂树脂和着色剂的含树脂颗粒而制备的，其中阴离子极性基团2a， 2b和2c键合到主链3和二价或更高价金属的盐。 具体地说，将二价或更高价金属的盐加载到含树脂颗粒的浆料中，使得金属离子4和阴离子极性基团2a结合，并且使浆料的温度升高，使得 阴离子极性基团2b和水分子被破坏。 这降低了聚合物1的水溶性，使得含树脂的颗粒聚集。 版权所有（C）2008，JPO＆INPIT

公开(公告)号：JP2007298869A

公开(公告)日：2007-11-15

申请号：JP2006128479

申请日：2006-05-02

Applicant: Sharp Corp ,  シャープ株式会社

Inventor： SHIBAI YASUHIRO ,  MATSUMOTO KATSURU

IPC: G03G9/08 ,  C08J3/12 ,  G03G9/087

CPC classification number: G03G9/09392 ,  G03G9/09321 ,  G03G9/09364 ,  G03G9/09371

Abstract: PROBLEM TO BE SOLVED: To obtain an electrophotographic capsular toner having low-temperature fixability and good storage stability, further having excellent charge stability and high fixing strength to paper, and capable of forming high quality, high gloss and high density color images with low consumption. SOLUTION: The electrophotographic capsular toner has a core/shell structure and comprises a shell layer comprising a cycloolefin copolymer resin and a core particle comprising a synthetic resin different from the cycloolefin copolymer resin. COPYRIGHT: (C)2008,JPO&INPIT

Abstract translation: 要解决的问题：为了获得具有低温定影性和良好储存稳定性的电子照相胶囊调色剂，进一步具有优异的电荷稳定性和对纸的高固定强度，并且能够形成高质量，高光泽度和高密度的彩色图像 消耗低。 电解质胶囊调色剂具有核/壳结构，并且包含包含环烯烃共聚物树脂的壳层和包含不同于环烯烃共聚物树脂的合成树脂的核心颗粒。 版权所有（C）2008，JPO＆INPIT