公开(公告)号：JP2013182201A

公开(公告)日：2013-09-12

申请号：JP2012047012

申请日：2012-03-02

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 capsule toner which can suppress the occurrence of low temperature off set and high temperature off set and suppress decrease in fluidity in the case of agitation over a long time, and a method of manufacturing the same.SOLUTION: A capsule toner includes a toner base particle, and a resin coating layer provided on the surface of the toner base particle. The resin coating layer is formed of a large-diameter resin fine particle, and a small-diameter resin fine particle. The large-diameter resin fine particle is composed of a first amorphous resin. The small-diameter resin fine particle has a volume average particle diameter smaller than that of the large-diameter resin fine particle and composed of a second amorphous resin.

Abstract translation: 要解决的问题：提供一种胶囊调色剂及其制造方法，其可以抑制低温脱模的发生和高温脱模，并抑制长时间搅拌的流动性的降低。 胶囊调色剂包括调色剂基础颗粒和设置在调色剂基础颗粒表面上的树脂涂层。 树脂涂层由大直径树脂微粒和小直径树脂微粒形成。 大直径树脂微粒由第一无定形树脂构成。 小直径树脂微粒的体积平均粒径小于大直径树脂微粒的体积平均粒径，由第二非晶体树脂构成。

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

公开(公告)号：JP2010015066A

公开(公告)日：2010-01-21

申请号：JP2008176385

申请日：2008-07-04

Applicant: Sharp Corp ,  シャープ株式会社

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

IPC: G03G9/10 ,  G03G9/08 ,  G03G9/113

CPC classification number: G03G9/1136 ,  G03G9/08755 ,  G03G9/09716 ,  G03G9/09725 ,  G03G9/1075 ,  G03G9/1139

Abstract: PROBLEM TO BE SOLVED: To provide a resin coated carrier for stably charging toner with an external additive of a large grain diameter added thereto for a long time, a two-component developer containing the carrier, and a developing device and image forming apparatus for forming a high quality image with no fog for a long time using the two-component developer. SOLUTION: The resin coated carrier is used with a toner in which an external additive having an average primary particle size of 50 nm or more is added to a toner particle, and has a carrier core and a resin coating layer on the surface of the carrier core. In the resin coated carrier, the following expression (1) is satisfied: 0.5≤-logä(A/C)/(B/C)}≤2.5 wherein A represents a volume resistance value (Ω/cm) of the resin coated carrier in an electric field of 1000 V/cm that is obtained by conducting a stirring test, B represents a volume resistance value of the resin coated carrier in an electric field of 1000 V/cm before the stirring test, and C represents a volume resistance value (Ω/cm) of the carrier core in an electric field of 1000 V/cm. COPYRIGHT: (C)2010,JPO&INPIT

Abstract translation: 要解决的问题：为了提供一种树脂涂布载体，用于长时间加入其中的大粒径外部添加剂的调色剂稳定地充电，含有载体的双组分显影剂以及显影装置和图像形成 使用双组分显影剂长时间形成高质量图像的装置。 ＆lt; P＆gt;解决方案：将树脂涂布载体与调色剂一起使用，其中将平均一次粒径为50nm以上的外部添加剂添加到调色剂颗粒中，并且在表面上具有载体芯和树脂涂层 的载体核心。 在树脂涂布载体中，满足以下表达式（1）：0.5≤-logä（A / C）/（B / C）}≤2.5其中A表示树脂涂布载体的体积电阻值（Ω/ cm） 在通过搅拌试验得到的1000V / cm的电场中，B表示在搅拌试验前的1000V / cm的电场中的树脂被覆载体的体积电阻值，C表示体积电阻值 （Ω/ cm）的载流子芯在1000V / cm的电场中。 版权所有（C）2010，JPO＆INPIT

公开(公告)号：JP2009086297A

公开(公告)日：2009-04-23

申请号：JP2007256170

申请日：2007-09-28

Applicant: Sharp Corp ,  シャープ株式会社

Inventor： MUTO YOSHINORI

IPC: G03G15/08

Abstract: PROBLEM TO BE SOLVED: To provide a developing device that keeps toner concentration stable even if a magnetic permeability sensor erroneously detects toner concentration due to a change in the bulk density of developer, and to provide the others. SOLUTION: The developing device includes: a DC bias voltage detecting section 302 that detects a development bias voltage for developing an electrostatic latent image; a toner concentration determining section 301 by which toner concentration, which is the concentration of the toner of two-component developer stored in a developing unit, is corrected based on a development bias voltage detected by the DC bias voltage detecting section 302; a toner supply quantity calculating section 303; a toner supply instructing section 304; a toner consumption quantity calculating section 305 and a toner consumption instructing section 306. COPYRIGHT: (C)2009,JPO&INPIT

Abstract translation: 要解决的问题：提供一种显影装置，即使磁导率传感器由于显影剂的体积密度的变化而错误地检测到调色剂浓度，也能保持调色剂浓度稳定，并提供其它。 解决方案：显影装置包括：DC偏压检测部分302，其检测用于显影静电潜像的显影偏压; 基于由DC偏压检测部302检测出的显影偏压，校正作为显影单元中存储的双组分显影剂的调色剂的浓度的调色剂浓度的调色剂浓度确定部301; 调色剂供给量计算部303; 调色剂供应指示部304; 调色剂消耗量计算部分305和调色剂消耗指令部分306.版权所有：（C）2009，JPO＆INPIT

公开(公告)号：JP2004054029A

公开(公告)日：2004-02-19

申请号：JP2002212703

申请日：2002-07-22

Applicant: Sharp Corp ,  シャープ株式会社

Inventor： IWAMATSU TADASHI ,  HIRAKAWA HIROYUKI ,  AZUMA NOBUYUKI ,  MUTO YOSHINORI

IPC: G02F1/167

Abstract: PROBLEM TO BE SOLVED: To enable stable display operation having a simple structure utilizing an interfacial electrokinetic phenomenon. SOLUTION: Numbers of holes 7 are formed in a two layer porous film 4 interposed between a lower substrate 2 and an upper substrate 3 and each pore 7 is filled with a transmissive liquid 8 and fine particles 9. When voltage is applied between an upper electrode 6 and a lower electrode 5, movement of the fine particles 9 based on electrophoresis is generated. When the position of the fine particles 9 is on the side of an upper layer transparent porous film 4a, white display is performed and when the position of the fine particles 9 is on the side of a lower layer black porous film 4b, black display is performed. When the porous film of the lower layer is constituted of periodically repetitive three primary colors of RGB or a color filter is disposed on the upper transparent substrate 3, color display can be also performed. Bubble occluding fine particles and a bubble itself can be also used. COPYRIGHT: (C)2004,JPO

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