公开(公告)号：JP2005258191A

公开(公告)日：2005-09-22

申请号：JP2004071094

申请日：2004-03-12

Applicant: Sharp Corp ,  シャープ株式会社

Inventor： AZUMA NOBUYUKI ,  HARA TAKASHI

IPC: G03G9/09 ,  G03G9/087

Abstract: PROBLEM TO BE SOLVED: To provide an electrophotographic toner which is high in the content of color material, high in density and high in charging stability in spite of that toner particle size is small.
SOLUTION: The surface of color material particles 4 such as carbon black particles is perfectly covered with first resin 1 such as polyester resin by means of a chemical technique such as the phase inversion emulsifying method, colorant particles 2 made in such a manner are kneaded with second resin 1 as toner main resin and are dispersed into the second resin 1, and the kneaded material is crushed and classified. Therethrough, such an electrophotographic toner that the color material particles 4 are separated from each other, are not exposed on the inner and outer surfaces of the second resin 1 and has small particle sizes is formed.
COPYRIGHT: (C)2005,JPO&NCIPI

Abstract translation: 要解决的问题：尽管调色剂颗粒尺寸小，但是提供色料含量高，密度高，带电稳定性高的电子照相调色剂。 解决方案：通过化学技术如相转化乳化法，以这样的方式制造的着色剂颗粒2，诸如碳黑颗粒的着色材料颗粒4的表面被诸如聚酯树脂的第一树脂1完全覆盖 与作为调色剂主树脂的第二树脂1捏合并分散到第二树脂1中，并将捏合的材料压碎并分级。 通过这样的方式，着色材料颗粒4彼此分离的这种电子照相调色剂不会暴露在第二树脂1的内表面和外表面上，并且形成小的粒径。 版权所有（C）2005，JPO＆NCIPI

公开(公告)号：JP2013164521A

公开(公告)日：2013-08-22

申请号：JP2012027855

申请日：2012-02-10

Applicant: Sharp Corp ,  シャープ株式会社

Inventor： HARA TAKASHI

IPC: G03G9/08 ,  G03G9/087

Abstract: PROBLEM TO BE SOLVED: To provide a capsule toner manufacturing method and a capsule toner, capable of suppressing adhesion of toner particles to a wall surface and suppressing blocking of toner particles with each other at manufacturing the capsule toner using a rotary agitation device.SOLUTION: A capsule toner manufacturing method includes a resin fine particle adhesion step and a coat formation step. In the coat formation step, while a plasticization liquid being a liquid for making toner base particles and resin fine particles plasticize is sprayed onto toner base particles with resin fine particles adhered thereon flowing in a temperature-controlled powder flow path 202 so as to make the resin fine particles on a surface of the toner base particles with resin fine particles adhered thereon into a film, a cooling medium is sprayed or injected to the toner base particles with resin fine particles adhered thereon.

Abstract translation: 要解决的问题：提供一种胶囊调色剂制造方法和胶囊调色剂，其能够使用旋转搅拌装置在制造胶囊调色剂时抑制调色剂颗粒粘附到壁表面并抑制调色剂颗粒彼此的粘连。解决方案： 胶囊调色剂制造方法包括树脂微粒粘合步骤和涂层形成步骤。 在涂层形成步骤中，将作为调色剂基础颗粒和树脂细颗粒增塑剂的液体的塑化液体喷涂到附着在其上的树脂细颗粒在调色剂基底颗粒上流动在温度控制的粉末流路202中，以使 在其上附着有树脂细颗粒的调色剂基础颗粒的表面上的树脂细颗粒，将冷却介质喷射或注入到附着有树脂细颗粒的调色剂基础颗粒上。

公开(公告)号：JP2012128040A

公开(公告)日：2012-07-05

申请号：JP2010277527

申请日：2010-12-13

Applicant: Sharp Corp ,  シャープ株式会社

Inventor： HARA TAKASHI ,  KAWASE NORITAKA ,  TSUBAKI YORIHISA ,  MUTO YOSHINORI ,  KIKAWA KEIICHI ,  MATSUMOTO KATSURU ,  AKAZAWA YOSHIAKI

IPC: G03G9/08 ,  G03G9/087

Abstract: PROBLEM TO BE SOLVED: To provide a production method of a capsule toner using toner base particles and resin fine particles, by which resin fine particles are sufficiently disintegrated to suppress generation of white spots in a fixed image, and to provide the capsule toner.SOLUTION: The production method of a capsule toner includes a cooling step, an adhering step and a filming step. In the cooling step, resin fine particles are cooled to a temperature equal to or lower than the brittleness temperature. In the adhering step, the resin fine particles cooled in the cooling step is fed as kept at the temperature equal to or lower than the brittleness temperature into a powder flow passage where the toner base particles flow, and the toner particles and the resin fine particles are mixed while stirring to adhere the resin fine particles to the surfaces of the toner base particles to obtain toner base particles with resin fine particles. In the filming step, stirring is continued until the resin fine particles on the surfaces of the toner base particles with resin fine particles form a film so as to form a resin coating layer on the surfaces of the toner base particles.

Abstract translation: 要解决的问题：为了提供使用调色剂基础颗粒和树脂细颗粒的胶囊调色剂的制备方法，树脂细颗粒充分分解以抑制固定图像中的白点的产生，并提供胶囊 墨粉。 解决方案：胶囊调色剂的制造方法包括冷却步骤，粘合步骤和成膜步骤。 在冷却步骤中，将树脂微粒冷却到等于或低于脆性温度的温度。 在粘接工序中，在冷却工序中冷却的树脂微粒子在保持温度等于或低于脆性温度的状态下进料到调色剂基体颗粒流动的粉末流动通道中，调色剂颗粒和树脂细颗粒 在搅拌下混合以将树脂细颗粒粘附到调色剂基础颗粒的表面，以获得具有树脂细颗粒的调色剂基础颗粒。 在成膜步骤中，继续搅拌，直到调色剂基础颗粒表面上的具有树脂细颗粒的树脂微粒形成膜，以在调色剂基础颗粒的表面上形成树脂涂层。 版权所有（C）2012，JPO＆INPIT

公开(公告)号：JP2012068414A

公开(公告)日：2012-04-05

申请号：JP2010212800

申请日：2010-09-22

Applicant: Sharp Corp ,  シャープ株式会社

Inventor： KAWASE NORITAKA ,  MUTO YOSHINORI ,  HARA TAKASHI ,  TSUBAKI YORIHISA ,  KIKAWA KEIICHI ,  AKAZAWA YOSHIAKI

IPC: G03G9/087 ,  G03G9/08

Abstract: PROBLEM TO BE SOLVED: To provide a production method of a capsule toner, in which production of coarse powder can be suppressed and a resin coating layer with uniform film thickness can be formed, and to provide the capsule toner.SOLUTION: The production method of a capsule toner includes a step of preparing a dispersion liquid of resin fine particles, a step of preparing resin fine particles, a deposition step, a spraying step and a film forming step. The step of preparing resin fine particles uses a 4-fluid nozzle, in which a dispersion liquid of resin fine particles is made to flow through two liquid flow passages while a spray gas is made to flow in two gas flow passages, and the dispersion liquid of resin fine particles together with the spray gas is sprayed through the 4-fluid nozzle so as to volatilize the dispersion medium to obtain dried resin fine particles. The dried resin fine particles thus obtained are deposited on the surfaces of toner base particles in the deposition step. In the spraying step and in the film forming step, the resin fine particles deposited on the toner base particle surfaces are softened to form a resin coating layer on the toner base particle surfaces.

Abstract translation: 解决的问题：提供可以抑制粗粉的生产并且可以形成具有均匀膜厚的树脂涂层的胶囊调色剂的制备方法，并提供胶囊调色剂。 解决方案：胶囊调色剂的制备方法包括制备树脂细颗粒的分散液，制备树脂微粒的步骤，沉积步骤，喷涂步骤和成膜步骤。 制备树脂细颗粒的步骤使用四流体喷嘴，其中使流体流过两个液体流动通道的树脂细颗粒的分散液同时使两个气体流动通道中的喷雾气体流动，并且分散液 的树脂细颗粒与喷雾气体一起喷射通过4流体喷嘴，使分散介质挥发，得到干燥的树脂微粒。 由此获得的干燥的树脂细颗粒在沉积步骤中沉积在调色剂基础颗粒的表面上。 在喷涂步骤和成膜步骤中，沉积在调色剂基础颗粒表面上的树脂微粒被软化以在调色剂基础颗粒表面上形成树脂涂层。 版权所有（C）2012，JPO＆INPIT

公开(公告)号：JP2011237823A

公开(公告)日：2011-11-24

申请号：JP2011153363

申请日：2011-07-11

Applicant: Sharp Corp ,  シャープ株式会社

Inventor： HARA TAKASHI ,  AKAZAWA YOSHIAKI ,  KAWASE NORITAKA ,  TSUBAKI YORIHISA ,  MUTO YOSHINORI ,  KIKAWA KEIICHI

IPC: G03G9/113

Abstract: PROBLEM TO BE SOLVED: To provide a resin layer coated carrier with excellent charge stability and a developer.SOLUTION: A resin layer coated carrier contains magnetic base particles consisting of a magnetic material, and the layer of a resin consisting of a resin particles, a conductive material, and a charge control agent to coat a surface of the magnetic base particles. The resin layer is made by sticking a coating material, which is a mixture of the resin particles, the conductive material, and the charge control agent, to the surface of the magnetic base particles to soften and thin the resin particles. The resin layer is also made by dissolving the charge control agent to a liquid plasticizing the resin particles and spraying to soften and thin the resin particles.

Abstract translation: 要解决的问题：提供具有优异的电荷稳定性的树脂层涂覆载体和显影剂。 解决方案：涂覆有树脂层的载体包含由磁性材料构成的磁性基体颗粒和由树脂颗粒，导电材料和电荷控制剂组成的树脂层，以涂覆磁性基体颗粒的表面 。 树脂层通过将作为树脂颗粒，导电材料和电荷控制剂的混合物的涂料粘附到磁性基体颗粒的表面来软化和稀薄树脂颗粒而制成。 树脂层也是通过将电荷控制剂溶解在塑化树脂颗粒的液体中并进行喷雾来软化和稀薄树脂颗粒而制成的。 版权所有（C）2012，JPO＆INPIT

公开(公告)号：JP2011150094A

公开(公告)日：2011-08-04

申请号：JP2010010515

申请日：2010-01-20

Applicant: Sharp Corp ,  シャープ株式会社

Inventor： TSUBAKI YORIHISA ,  KAWASE NORITAKA ,  KIKAWA KEIICHI ,  MUTO YOSHINORI ,  HARA TAKASHI ,  AKAZAWA YOSHIAKI

IPC: G03G9/087 ,  G03G9/08

CPC classification number: G03G9/09392 ,  G03G9/09314

Abstract: PROBLEM TO BE SOLVED: To provide a method for producing a capsule toner with which a capsule toner including a coating layer having uniform thickness can be obtained at a high yield, and to provide a capsule toner having superior image stability and proper fixability.
SOLUTION: The method for producing a capsule toner includes fine-resin particles adhering step of making the fine-resin particles adhere to surfaces of toner-base particles; a spraying step of spraying a spray liquid for making the toner-base particles plasticize, and the fine resin particles to the toner-base particles and the fine resin particles in a fluidized state; and a film-forming step of fluidizing the toner-base particles and the fine resin particles, until the fine resin particles adhered to the surfaces of thetoner-base particles are softened to form a film. In the spraying step, ultrasonic vibration is applied and the number-average liquid-droplet diameter of the spray liquid is set to less than 10 μm.
COPYRIGHT: (C)2011,JPO&INPIT

Abstract translation: 解决问题的方法：提供一种胶囊调色剂的制造方法，通过该方法可以以高产率获得包含具有均匀厚度的涂层的胶囊调色剂，并提供具有优异的图像稳定性和适当定影性的胶囊调色剂 。 胶囊调色剂的制造方法包括使微细树脂颗粒粘附到调色剂基颗粒的表面上的微细树脂颗粒粘合步骤; 喷雾步骤，喷雾用于使调色剂基础颗粒增塑的喷雾液体，并且将细颗粒树脂颗粒与流化状态的调色剂基颗粒和细树脂颗粒进行喷涂; 以及使调色剂基颗粒和细树脂颗粒流化的膜形成步骤，直到粘附到粒子基颗粒表面的细小树脂颗粒被软化以形成膜。 在喷涂步骤中，施加超声波振动，将喷雾液的数均液滴直径设定为小于10μm。 版权所有（C）2011，JPO＆INPIT

公开(公告)号：JP2011070034A

公开(公告)日：2011-04-07

申请号：JP2009221646

申请日：2009-09-25

Applicant: Sharp Corp ,  シャープ株式会社

Inventor： KIKAWA KEIICHI ,  KAWASE NORITAKA ,  TSUBAKI YORIHISA ,  MUTO YOSHINORI ,  HARA TAKASHI ,  AKAZAWA YOSHIAKI

IPC: G03G9/087 ,  G03G9/08

Abstract: PROBLEM TO BE SOLVED: To provide a method for producing a capsule toner achieving both of low blocking property and filming resistance, and to provide a capsule toner, a developer, a developing device and an image forming apparatus. SOLUTION: The method for producing a capsule toner includes a resin fine particle-adhering step, a spraying step and a filming step. In the resin fine particle-adhering step, toner base particles and a plurality of resin fine particles having different glass transition temperatures are fluidized by use of a rotary agitation device by rotating a rotary agitating means so as to make the plurality of resin fine particles adhere to the surfaces of the toner base particles. In the spraying step, a spray liquid that plasticizes the toner base particles and the plurality of resin fine particles is sprayed by a spraying means to the toner base particles having the plurality of resin fine particles adhering thereto and being in a fluidized state as rotation of the rotary agitating means is continued. In the filming step, rotation of the rotary agitating means is continued until the plurality of resin fine particles adhering to the toner base particles are softened to form a film, so as to form a resin coating layer on the surfaces of the toner base particles. COPYRIGHT: (C)2011,JPO&INPIT

Abstract translation: 解决问题的方法：提供一种制造具有低阻隔性和耐成膜性的胶囊调色剂的方法，并提供胶囊调色剂，显影剂，显影装置和图像形成装置。 胶囊调色剂的制造方法包括树脂微粒粘附工序，喷涂工序和成膜工序。 在树脂微粒粘附步骤中，通过旋转搅拌装置使旋转搅拌装置使具有不同玻璃化转变温度的调色剂基础颗粒和多个树脂细颗粒流化，以使多个树脂细颗粒粘附 到调色剂基础颗粒的表面。 在喷涂工序中，使调色剂基础颗粒和多个树脂细颗粒增塑的喷雾液体通过喷涂装置喷涂到附着有多个树脂微粒的调色剂基础颗粒上，并且处于流化状态 继续旋转搅拌装置。 在成膜步骤中，旋转搅拌装置的旋转继续进行，直到附着在调色剂基础颗粒上的多个树脂微粒被软化以形成膜，从而在调色剂基础颗粒的表面上形成树脂涂层。 版权所有（C）2011，JPO＆INPIT

公开(公告)号：JP2011065193A

公开(公告)日：2011-03-31

申请号：JP2010294584

申请日：2010-12-29

Applicant: Sharp Corp ,  シャープ株式会社

Inventor： HARA TAKASHI ,  KAWASE NORITAKA ,  AKAZAWA YOSHIAKI

IPC: G03G9/087

Abstract: PROBLEM TO BE SOLVED: To provide a method for producing a toner by which a toner composed of toner base particles whose surfaces are coated with resin fine particles in the form of a uniform film can be produced while suppressing generation of aggregates by preferably fostering filming of the resin fine particles deposited on the surfaces of the toner base particles. SOLUTION: The method for producing a toner includes: a resin fine particle deposition step S3b where resin fine particles are deposited on the surfaces of toner base particles in a powder passage; a spraying step S3c where, to the toner base particles and the resin fine particles in a flowing state, a liquid plasticizing these particles is sprayed; and a film forming step S3d where the toner base particles and the resin fine particles are circulated in the powder passage until the resin fine particles deposited on the toner base particles are shaped into a film. In the spraying step S3c, the liquid is sprayed in such a manner that an LEL (lower explosive limit) concentration coefficient within the powder passage falls in a range from 0.07 to 8.12. COPYRIGHT: (C)2011,JPO&INPIT

Abstract translation: 解决问题的方法：提供一种调色剂的制造方法，通过该方法可以制备由表面涂覆有均匀膜形式的树脂微粒的调色剂基础颗粒构成的调色剂，同时优选抑制聚集体的产生 促进沉积在调色剂基础颗粒表面上的树脂微粒的成膜。 解决方案：调色剂的制造方法包括：树脂微粒沉积步骤S3b，其中树脂细颗粒沉积在粉末通道中的调色剂基础颗粒的表面上; 喷雾步骤S3c，其中对调色剂基础颗粒和流动状态的树脂微粒喷射使这些颗粒增塑的液体; 以及成膜步骤S3d，其中调色剂基础颗粒和树脂细颗粒在粉末通道中循环，直到沉积在调色剂基础颗粒上的树脂细颗粒成形为膜。 在喷涂工序S3c中，以粉末通道内的LEL（下限爆炸极限）浓度系数为0.07〜8.12的范围喷射液体。 版权所有（C）2011，JPO＆INPIT

公开(公告)号：JP2010277000A

公开(公告)日：2010-12-09

申请号：JP2009131495

申请日：2009-05-29

Applicant: Sharp Corp ,  シャープ株式会社

Inventor： AKAZAWA YOSHIAKI ,  KAWASE NORITAKA ,  TSUBAKI YORIHISA ,  MUTO YOSHINORI ,  KIKAWA KEIICHI ,  HARA TAKASHI

IPC: G03G9/08 ,  G03G9/087 ,  G03G9/097

Abstract: PROBLEM TO BE SOLVED: To provide a capsule toner and a method for producing the toner, wherein an increase in a toner charge amount is suppressed while preventing injection of charges to the toner from a photoreceptor drum or a developing roller, and an image free from decrease in image density or fog is obtained for a long period of time. SOLUTION: The capsule toner comprises toner particles each having: a toner base particle containing a binder resin and a colorant; and a resin layer containing resin fine particles and coating the surface of the toner base particle, wherein fine particles having a function of controlling the electric resistance are contained on the interface between the toner base particle and the resin layer and in the resin layer. COPYRIGHT: (C)2011,JPO&INPIT

Abstract translation: 要解决的问题：为了提供胶囊调色剂和调色剂的制造方法，其中抑制调色剂带电量的增加，同时防止从感光鼓或显影辊向调色剂注入电荷，并且 长时间获得图像密度或雾度降低的图像。 胶囊调色剂包括调色剂颗粒，每个调色剂颗粒具有：含有粘合剂树脂和着色剂的调色剂基础颗粒; 以及包含树脂细颗粒并涂覆调色剂基础颗粒的表面的树脂层，其中具有控制电阻功能的微粒包含在调色剂基础颗粒和树脂层之间以及树脂层中的界面上。 版权所有（C）2011，JPO＆INPIT

公开(公告)号：JP2010230939A

公开(公告)日：2010-10-14

申请号：JP2009077763

申请日：2009-03-26

Applicant: Sharp Corp ,  シャープ株式会社

Inventor： HARA TAKASHI ,  KAWASE NORITAKA ,  AKAZAWA YOSHIAKI ,  TSUBAKI YORIHISA ,  KIKAWA KEIICHI ,  MUTO YOSHINORI

IPC: G03G9/087 ,  G03G9/08 ,  G03G9/10

CPC classification number: G03G9/0808 ,  G03G9/09321 ,  G03G9/09371 ,  G03G9/09392 ,  G03G2215/0614

Abstract: PROBLEM TO BE SOLVED: To provide a manufacturing method of toner which has excellent characteristics such as fluidity and storage stability and in which a resin layer having uniform thickness is formed on a surface of toner core particle, toner obtained by this method, a one-component developer, a two-component developer, a developing device, and an image forming apparatus. SOLUTION: By using a toner manufacturing apparatus 201, a stirring step S3 is performed. During rotation of a rotary stirring part 204, after the completion of inputting the fine resin particles into a powder passage 202, a spraying step S4 is started within a period satisfying 1.7≤(load F-load F 0 )/(load F core -load F 0 )≤5.7. COPYRIGHT: (C)2011,JPO&INPIT

Abstract translation: 要解决的问题：为了提供一种具有优异的流动性和储存稳定性等的调色剂的制造方法，并且在调色剂核心颗粒的表面上形成具有均匀厚度的树脂层，通过该方法得到的调色剂， 单组分显影剂，双组分显影剂，显影装置和图像形成装置。 解决方案：通过使用调色剂制造装置201，进行搅拌步骤S3。 在旋转搅拌部204的旋转期间，在将树脂微粒输入粉末通路202完成之后，在满足1.7≤（负荷F-负载F 0 ）/（负载F 芯载荷F 0 ）≤5.7。 版权所有（C）2011，JPO＆INPIT