公开(公告)号：JP2011170291A

公开(公告)日：2011-09-01

申请号：JP2010036579

申请日：2010-02-22

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: G03G9/08 ,  G03G9/087

Abstract: PROBLEM TO BE SOLVED: To provide a method for producing a capsule toner having a uniform resin coating layer and a narrow particle size distribution, the capsule toner, and a developer.
SOLUTION: The method for producing the capsule toner includes the steps of: depositing resin particulates on surfaces of toner base particles by making the toner base particles and the resin particulates flow to apply a mechanical impact force; spraying a liquid obtained by dispersing hydrophobic silica particulates in a polar organic solvent, onto the toner base particles which are in a fluid state and have the resin particulates deposited on the surfaces thereof; and forming the resin particulates having the hydrophobic silica particulates deposited thereon, into films by the impact force to form resin coating layers on the surfaces of the toner base particles.
COPYRIGHT: (C)2011,JPO&INPIT

Abstract translation: 要解决的问题：提供一种具有均匀树脂涂层和窄粒度分布的胶囊调色剂的制备方法，胶囊调色剂和显影剂。 胶囊调色剂的制造方法包括以下步骤：通过使调色剂基础颗粒和树脂颗粒流动以施加机械冲击力，将树脂微粒沉积在调色剂基础颗粒的表面上; 将通过将疏水性二氧化硅微粒分散在极性有机溶剂中而获得的液体喷射到处于流体状态且具有树脂颗粒沉积在其表面上的调色剂基础颗粒上; 并且通过冲击力将沉积有疏水性二氧化硅微粒的树脂颗粒形成为膜，以在调色剂基础颗粒的表面上形成树脂涂层。 版权所有（C）2011，JPO＆INPIT

公开(公告)号：JP2011141489A

公开(公告)日：2011-07-21

申请号：JP2010003296

申请日：2010-01-08

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: G03G9/08 ,  G03G9/087

CPC classification number: G03G9/09392 ,  G03G9/09371 ,  G03G9/09378

Abstract: PROBLEM TO BE SOLVED: To provide a method for manufacturing a capsule toner that improves storage property without deteriorating low-temperature fixability.
SOLUTION: The method for manufacturing a capsule toner comprises: a mixed resin fine particle adhering step of forming a mixed resin fine particle adhered particle by adhering to the toner base particle surface a mixed resin fine particle comprising a crystalline polyester resin fine particle and an amorphous resin fine particle; a spraying step of spraying to the mixed resin fine particle adhered particle in a flowable state a mixed solution of a liquid for plasticizing the particle and a crystal nucleating agent; and a filming step of forming a resin coating layer on the toner base particle surface by processing the mixed resin fine particle into a film by an impact force.
COPYRIGHT: (C)2011,JPO&INPIT

Abstract translation: 要解决的问题：提供一种在不降低低温定影性的情况下提高储存性能的胶囊调色剂的制造方法。 解决方案：胶囊调色剂的制造方法包括：混合树脂细颗粒粘合步骤，通过将调色剂基体颗粒表面粘附在混合树脂细颗粒粘附颗粒上，混合树脂细颗粒包含结晶聚酯树脂细颗粒 和无定形树脂细颗粒; 喷射步骤，以可流动状态将混合树脂微粒附着颗粒喷射到用于使颗粒增塑的液体和晶体成核剂的混合溶液中; 以及通过冲击力将混合树脂微粒加工成膜而在调色剂基础颗粒表面上形成树脂涂层的成膜步骤。 版权所有（C）2011，JPO＆INPIT

公开(公告)号：JP2011090270A

公开(公告)日：2011-05-06

申请号：JP2009245943

申请日：2009-10-26

Applicant: Sharp Corp ,  シャープ株式会社

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

IPC: G03G9/087 ,  G03G9/08

Abstract: PROBLEM TO BE SOLVED: To provide a method for producing a capsule toner having a resin coating layer having a uniform film thickness and a low glass transition temperature, and having excellent preservation stability capable of low-temperature fixation; and to provide the capsule toner and a developer.
SOLUTION: In the method for producing the capsule toner, a resin particle aggregate formed by aggregating resin particles and inorganic particles smaller in particle size than the resin particles is cracked by a mechanical impact force applied thereto, and the resin particles having the inorganic particles adhering to the surface which are acquired by cracking are made to adhere to surfaces of toner base particles, to thereby form the 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：提供一种制备具有均匀膜厚和低玻璃化转变温度的树脂涂层的胶囊调色剂的方法，并且具有优异的保存稳定性能够进行低温定影的方法。 并提供胶囊调色剂和显影剂。 解决方案：在制造胶囊调色剂的方法中，通过聚集树脂颗粒和颗粒尺寸小于树脂颗粒的无机颗粒形成的树脂颗粒聚集体通过施加到其上的机械冲击力而破裂，​​并且具有 使通过裂纹获得的表面附着的无机粒子粘附到调色剂基础颗粒的表面，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：JP2011065106A

公开(公告)日：2011-03-31

申请号：JP2009218103

申请日：2009-09-18

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: G03G9/08 ,  G03G9/087

CPC classification number: G03G9/09385 ,  G03G9/09314 ,  G03G9/09378 ,  G03G9/09392

Abstract: PROBLEM TO BE SOLVED: To provide capsule toner achieving both of low temperature fixability and hot offset resistance, and to provide a method for producing the capsule toner. SOLUTION: The capsule toner 1 comprises toner base particles 2 containing a binder resin and a colorant, and a resin coating layer 4 formed on the surface of the toner base particle 2. The resin coating layer 4 comprises a plurality of kinds of resin fine particles having different complex viscosities, formed into a film state. The plurality of kinds of resin fine particles include first resin fine particles showing a complex viscosity of 5.0×10 2 Pa s or more and 1.0×10 3 Pa s or less at the softening temperature of the toner base particles, and second resin fine particles having a complex viscosity of 1.0×10 4 Pa s or more and 1.0×10 5 Pa s or less at the softening temperature of the toner base particles. COPYRIGHT: (C)2011,JPO&INPIT

Abstract translation: 要解决的问题：提供实现低温定影性和耐热粘合性两者的胶囊调色剂，并提供制造胶囊调色剂的方法。 胶囊调色剂1包括含有粘合剂树脂和着色剂的调色剂基础颗粒2和形成在调色剂基础颗粒2的表面上的树脂涂层4.树脂涂层4包括多种 具有不同复合粘度的树脂细颗粒，形成膜状态。 多种树脂微粒包括复数粘度为5.0×10 5 Pa Pa以下的第二树脂微粒 在调色剂基础颗粒的软化温度下。 版权所有（C）2011，JPO＆INPIT

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：JP2005114989A

公开(公告)日：2005-04-28

申请号：JP2003348455

申请日：2003-10-07

Applicant: Sharp Corp ,  シャープ株式会社

Inventor： HARA TAKASHI ,  AZUMA NOBUYUKI

IPC: G03G9/087

Abstract: PROBLEM TO BE SOLVED: To provide an electrophotographic developing toner which has high coloring power and can reduce electric power consumption by uniformly dispersing a coloring agent into a toner resin without flocculating the coloring agent and a method for manufacturing the same.
SOLUTION: The toner containing at least coloring agent particles and a toner main resin is so constituted that the coloring agent particles are microcapsulated by a coating resin which is the same as or different from the toner main resin, are kneaded/dispersed into the toner main resin and are pulverized/classified.
COPYRIGHT: (C)2005,JPO&NCIPI

Abstract translation: 要解决的问题：提供一种具有高着色力并且可以通过将着色剂均匀分散到调色剂树脂中而不使絮凝着色剂而降低功耗的电子照相显影调色剂及其制造方法。 包含至少着色剂颗粒和调色剂主树脂的调色剂的构成使得着色剂颗粒被与调色剂主树脂相同或不同的涂布树脂微胶囊化，被捏合/分散 调色剂主树脂粉碎/分级。 版权所有（C）2005，JPO＆NCIPI

公开(公告)号：JP2012037629A

公开(公告)日：2012-02-23

申请号：JP2010175819

申请日：2010-08-04

Applicant: Sharp Corp ,  シャープ株式会社

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

IPC: G03G9/08 ,  G03G9/087

Abstract: PROBLEM TO BE SOLVED: To provide a method for manufacturing a capsule toner which is excellent in low-temperature fixability and hot-offset resistance and is capable of improving blocking resistance.SOLUTION: A method for manufacturing a capsule toner comprises: a toner base particle preparing step of obtaining amorphous toner base particles; a crystalline polyester resin fine particle adhering step of obtaining crystalline polyester fine resin particle adhering toner base particles by mixing toner base particles and crystalline polyester resin fine particles; a noncrystalline resin fine particle adhering step of obtaining noncrystalline resin fine particle adhering toner base particles by mixing the crystalline polyester fine resin particle adhering toner base particles and noncrystalline resin fine particles; a spraying step of spraying a spray liquid to the noncrystalline resin fine particle adhering toner base particles under stirring; and a film forming step of forming a resin coated layer on the surface of the toner base particles by continuing stirring until noncrystalline resin fine particles on the surface of the noncrystalline resin fine particle adhering toner base particles are softened to form a film.

Abstract translation: 解决的问题：提供一种制造低温定影性和耐热粘合性优异的胶囊型调色剂的方法，能够提高耐粘连性。 解决方案：一种制造胶囊调色剂的方法，包括：获得无定形调色剂基础颗粒的调色剂基础颗粒制备步骤; 结晶性聚酯树脂细颗粒粘合步骤，通过混合调色剂基础颗粒和结晶聚酯树脂细颗粒获得粘附调色剂基础颗粒的结晶聚酯细颗粒树脂; 非结晶性树脂微粒粘附工序，通过混合附着在调色剂基础颗粒和非结晶性树脂细颗粒上的结晶性聚酯微粒树脂颗粒，得到粘结调色剂基础颗粒的非结晶性树脂微粒; 喷雾步骤，在搅拌下向附着的调色剂基础颗粒的非结晶性树脂微粒喷射喷雾液; 以及成膜步骤，通过持续搅拌在所述调色剂基础颗粒的表面上形成树脂涂层，直到粘附调色剂基础颗粒的非结晶性树脂微粒表面上的非结晶性树脂微粒被软化以形成膜。 版权所有（C）2012，JPO＆INPIT

公开(公告)号：JP2010139779A

公开(公告)日：2010-06-24

申请号：JP2008316280

申请日：2008-12-11

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: G03G9/087 ,  G03G9/10

Abstract: PROBLEM TO BE SOLVED: To provide a method for manufacturing for manufacturing a toner at short times with a high yield, a toner of a good film state where resin fine particles are uniformly made like a film on the surfaces of toner base particles, and to provide toner manufactured by the manufacturing method, a developer containing the toner, a developing device using the developer, and an image forming apparatus.
SOLUTION: The method for manufacturing the toner includes: a resin fine particle sticking process; a spray process; and a filming process. In the spray process, a first spray means sprays spray liquid. In a period since the beginning of the spray and until additional spray time T1 establishing equation (1) 0.2τ≤T1≤τ(τ=V/Fair), a second spray means additionally sprays spray liquid of an amount of additional gas volume amount K establishing equation (2) 0.6κ≤K≤1.6κ(κ=(Fin/Fair)×V) into a powder channel. Here, Fin is gas volume flow, Fair indicates air volume flow of the air discharged out of the powder channel, and V is volume of the inside of the powder channel.
COPYRIGHT: (C)2010,JPO&INPIT

Abstract translation: 要解决的问题：为了提供一种用于在短时间内以高产率制造调色剂的方法，将调色剂基础颗粒的表面上的树脂细颗粒均匀地形成为膜的良好膜状态的调色剂 ，并提供通过制造方法制造的调色剂，含有调色剂的显影剂，使用显影剂的显影装置和图像形成装置。 调色剂的制造方法包括：树脂微粒粘贴工序; 喷雾过程; 和拍摄过程。 在喷雾过程中，第一喷雾装置喷洒喷雾液体。 在喷雾开始的一段时间内，直到额外的喷涂时间T1建立方程（1）0.2τ≤T1≤τ（τ= V / Fair），第二喷雾装置另外喷射一定量的附加气体体积量的喷射液体 K建立方程（2）0.6κ≤K≤1.6K（κ=（Fin / Fair）×V）成粉末通道。 这里，Fin是气体体积流量，Fair表示从粉末通道排出的空气的体积流量，V是粉末通道内部的体积。 版权所有（C）2010，JPO＆INPIT