公开(公告)号：JP2011022219A

公开(公告)日：2011-02-03

申请号：JP2009165172

申请日：2009-07-13

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: G03G9/08 ,  B01J2/00 ,  G03G9/087 ,  G03G9/097

Abstract: PROBLEM TO BE SOLVED: To provide a capsule toner with a stable image density under a high humidity environment. SOLUTION: The capsule toner is composed of: toner base particles having a binder resin and a colorant; resin fine particles; and the resin fine particles for enhancing charge, wherein the capsule toner further includes a resin coating layer for coating the surface of the toner base particle. COPYRIGHT: (C)2011,JPO&INPIT

Abstract translation: 要解决的问题：在高湿度环境下提供具有稳定图像浓度的胶囊调色剂。 胶囊调色剂由具有粘合剂树脂和着色剂的调色剂基础颗粒组成; 树脂细颗粒; 和用于增强电荷的树脂细颗粒，其中胶囊调色剂还包括用于涂覆调色剂基础颗粒表面的树脂涂层。 版权所有（C）2011，JPO＆INPIT

公开(公告)号：JP2010281906A

公开(公告)日：2010-12-16

申请号：JP2009133483

申请日：2009-06-02

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

CPC classification number: G03G9/1075 ,  G03G9/1131 ,  G03G9/1132 ,  G03G9/1138

Abstract: PROBLEM TO BE SOLVED: To provide a method of manufacturing a resin-layer coated carrier excellent in charging stability while reducing an environmental load due to the use of a large amount of a solvent as a problem with a wet method. SOLUTION: In the method of manufacturing a resin-layer coated carrier, the resin-layer coated carrier is manufactured by stirring magnetic base particles and resin fine particles in a powder passage by using a manufacturing apparatus provided with a rotary stirring section including a rotary disk circumferentially provided with a stirring blade and a rotary shaft, and the powder passage including a rotary stirring chamber and a circulation tube. The method includes: a fine resin particle adhering step where magnetic base particles and fine resin particles are inputted into the powder passage with the rotary stirring section rotating, and the fine resin particle are adhered onto a surface of the magnetic base particle; a spraying step where at least a liquid that plasticizes the fine resin particles is sprayed with spray gas from a spraying section on the magnetic base particle and the fine resin particle which are in a fluidized state in the power passage; and a film-forming step, where rotation by the rotary stirring section is continued to fluidize the magnetic base particles and the fine resin particles until the fine resin particles adhered to the magnetic base particles are softened to form a film. COPYRIGHT: (C)2011,JPO&INPIT

Abstract translation: 解决的问题：提供一种制造树脂层涂布载体的方法，其具有优异的带电稳定性，同时由于使用大量的溶剂而导致的环境负荷降低，这是湿法的问题。 解决方案：在树脂层涂布载体的制造方法中，通过使用具有旋转搅拌部的制造装置，通过在粉末通道中搅拌磁性基体颗粒和树脂细颗粒来制造树脂层涂布载体，该旋转搅拌部包括 周向设置有搅拌叶片和旋转轴的旋转盘，并且所述粉末通道包括旋转搅拌室和循环管。 该方法包括：在旋转搅拌部旋转的同时将粉末状粒子和细粒子树脂粒子输入粉末通道的树脂粒子附着工序，并将微细树脂粒子附着在磁性基体粒子的表面上。 喷射步骤，其中至少使塑料化树脂颗粒的液体从喷雾部分喷射到在动力通道中处于流化状态的磁性基体颗粒和细小树脂颗粒上; 以及成膜步骤，旋转搅拌部分的旋转继续使磁性基体颗粒和细颗粒树脂颗粒流动，直到粘附到磁性基础颗粒的细小树脂颗粒被软化以形成膜。 版权所有（C）2011，JPO＆INPIT

公开(公告)号：JP2009282209A

公开(公告)日：2009-12-03

申请号：JP2008133035

申请日：2008-05-21

Applicant: Sharp Corp ,  シャープ株式会社

Inventor： MUTO YOSHINORI ,  IWAMATSU TADASHI ,  YOSHIOKA NOBUYUKI ,  HIRAKAWA HIROYUKI ,  HARA TAKASHI ,  KAMOTO TAKANORI ,  WADA OSAMU

IPC: G03G9/113 ,  G03G9/10

Abstract: PROBLEM TO BE SOLVED: To provide a coated carrier for suppressing decrease in a conveyance amount caused by changes in a carrier shape with lapse of time, and maintaining high quality image output for a long period of time. SOLUTION: The carrier 1 is a coated carrier having wear resistance and comprising a carrier core material 6 and a coating layer 7 coating the carrier core material 6, in which the surface of the carrier core 6 is partially exposed. When a shape factor (SF-2) of the carrier core material 6 is denoted as a first shape factor, that of the initial carrier 1 is denoted as a second shape factor, and that of the coated carrier changed by wear of the carrier core material 6 and the coating layer 7 of the initial carrier 1 is denoted as a third shape factor, respectively, the first shape factor ranges from 120 to 150, and a ratio of the third shape factor to the second shape factor is not less than 90%. Thereby, as a wear balance in the resin coated portion where a concave portion is formed can be optimized and decrease in the shape factor with time can be prevented, decrease in a conveyance amount of the developer can be suppressed. COPYRIGHT: (C)2010,JPO&INPIT

Abstract translation: 要解决的问题：提供一种涂覆载体，用于抑制由于载流子形状随时间的变化而导致的输送量的降低，并且长时间保持高质量的图像输出。 解决方案：载体1是具有耐磨性的涂层载体，并且包括载体芯材料6和涂覆载体芯材料6的涂层7，其中载体芯6的表面部分地露出。 当载体芯材6的形状因子（SF-2）被表示为第一形状因子时，将初始载体1的形状因子（SF-2）表示为第二形状因子，并且涂覆载体的载荷芯片 初始载体1的材料6和涂层7分别被表示为第三形状因子，第一形状因子范围为120至150，第三形状因子与第二形状因子的比率不小于90 ％。 因此，作为在形成有凹部的树脂涂布部的磨损平衡可以优化，可以防止形状因素随时间的减少，可以抑制显影剂的输送量的减少。 版权所有（C）2010，JPO＆INPIT

公开(公告)号：JP2012220645A

公开(公告)日：2012-11-12

申请号：JP2011084910

申请日：2011-04-06

Applicant: Sharp Corp ,  シャープ株式会社

Inventor： MUTO YOSHINORI

IPC: G03G9/08 ,  G03G9/087

Abstract: PROBLEM TO BE SOLVED: To provide a method for manufacturing capsule toners having low-temperature fixability, a high-temperature off-set resistance, and an anti-blocking property and capable of preventing toner filming, a capsule toner, and a two-component developer.SOLUTION: The method for manufacturing capsule toners includes: a step for manufacturing toner base particles for forming a release-agent layer; a step for manufacturing fine-particle-adhesion toner base particles; and a step for forming a resin coating layer. In the step for forming the resin coating layer, while spraying a liquid spray that is a liquid for plasticizing resin fine particles, the toner base particles for forming the release-agent layer on the surface of which the resin fine particles and inorganic particles are stuck, are stirred to form a film of the resin fine particles, and then the resin coating layer where the inorganic particles are dispersed in the resin is formed on the surface of the toner base particles for forming the release-agent layer.

Abstract translation: 解决方案：提供一种制造具有低温定影性，高温脱模性和防粘连性并能够防止调色剂成膜的胶囊调色剂的方法，胶囊调色剂和 双组分显影剂 解决方案：胶囊调色剂的制造方法包括：制造用于形成脱模剂层的调色剂基础颗粒的步骤; 制造细颗粒粘附调色剂基颗粒的步骤; 以及形成树脂被覆层的工序。 在形成树脂涂层的步骤中，在喷射作为用于塑化树脂细颗粒的液体的液体喷雾的同时，在其上粘附有树脂细颗粒和无机颗粒的表面上形成脱模剂层的调色剂基础颗粒 搅拌以形成树脂微粒的膜，然后在用于形成脱模剂层的调色剂基础颗粒的表面上形成无机颗粒分散在树脂中的树脂涂层。 版权所有（C）2013，JPO＆INPIT

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：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