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：JP2009025749A

公开(公告)日：2009-02-05

申请号：JP2007191336

申请日：2007-07-23

Applicant: Sharp Corp ,  シャープ株式会社

Inventor： YAMAMOTO YOSHINORI ,  ONDA YUTAKA ,  AKAZAWA YOSHIAKI

IPC: G03G9/08 ,  G03G9/087

CPC classification number: G03G9/0819 ,  G03G9/081 ,  G03G9/0815 ,  G03G9/0817 ,  G03G9/0827

Abstract: PROBLEM TO BE SOLVED: To provide a toner and a method for manufacturing the toner excellent in fluidity and capable of forming a high-definition image with high resolution and high picture quality, and to provide a two-component developer, a developing device and an image forming apparatus. SOLUTION: The toner contains at least a binder resin and a colorant and contains a group of large diameter particles and a group of small diameter particles having a volume average particle diameter smaller than that of the group of large diameter particles. The toner is controlled in such a manner that the volume average particle diameter D 50V , which means the cumulative volume from a large particle diameter side in a cumulative volume distribution reaches 50%, is 4-8 μm, and the rate of content of toner particles having a volume particle diameter of not less than 7 μm is 24-47 vol%, and the rate of content of toner particles having a number average particle diameter of not more than 5 μm is 10-50 number%. COPYRIGHT: (C)2009,JPO&INPIT

Abstract translation: 要解决的问题：提供调色剂和制造具有优异的流动性并能够形成高分辨率和高图像质量的高分辨率图像的调色剂的方法，并提供双组分显影剂，显影剂 装置和图像形成装置。 解决方案：调色剂至少含有粘合剂树脂和着色剂，并且包含一组大直径颗粒和一组体积平均粒径小于大直径颗粒组的小直径颗粒。 调色剂的控制方式是使累积体积分布中的大粒径侧的累积体积达到50％，体积平均粒径D 50V 为4-8μm， 并且体积粒径不小于7μm的调色剂颗粒的含量为24-47体积％，数均粒径不大于5μm的调色剂颗粒的含量为10-50 数％。 版权所有（C）2009，JPO＆INPIT

公开(公告)号：JP2005316308A

公开(公告)日：2005-11-10

申请号：JP2004136405

申请日：2004-04-30

Applicant: Sharp Corp ,  シャープ株式会社

Inventor： TOIZUMI KIYOSHI ,  AKAZAWA YOSHIAKI ,  OGAWA SATORU ,  KUBO MASAHIKO ,  NAKATSU HIROMI ,  MATSUMOTO HIROO ,  SUZUKI MASARO

IPC: G03G9/09 ,  G03G15/01 ,  G03G15/08

Abstract: PROBLEM TO BE SOLVED: To provide an image forming apparatus capable of stably forming high-quality color images over a prolonged period of time.
SOLUTION: In the image forming apparatus 1 capable of forming color images, a plurality of development devices 29 for developing an electrostatic latent images, by supplying toner which is a developer to a photoreceptor 27 are disposed for each color toner (cyan, magenta, yellow). The apparatus is set so that the glass transition temperatures of the color toners in the developers used in the respective development devices 29 are set higher, the shorter the distance between a fixing device 45 and each developing device 29 becomes.
COPYRIGHT: (C)2006,JPO&NCIPI

Abstract translation: 要解决的问题：提供能够在长时间内稳定地形成高质量彩色图像的图像形成装置。 解决方案：在能够形成彩色图像的图像形成装置1中，通过向感光体27供应作为显影剂的调色剂，将用于显影静电潜像的多个显影装置29设置用于每个彩色调色剂（青色， 品红色，黄色）。 设置该装置使得各显影装置29中使用的显影剂中的彩色调色剂的玻璃化转变温度被设定得更高，定影装置45和每个显影装置29之间的距离越短。 版权所有（C）2006，JPO＆NCIPI

公开(公告)号：JP2005250149A

公开(公告)日：2005-09-15

申请号：JP2004060973

申请日：2004-03-04

Applicant: Sharp Corp ,  シャープ株式会社

Inventor： KUBO MASAHIKO ,  AKAZAWA YOSHIAKI ,  OGAWA SATORU ,  NAKATSU HIROMI ,  MATSUMOTO HIROO ,  SUZUKI MASARO

IPC: G03G9/08 ,  G03G15/08

Abstract: PROBLEM TO BE SOLVED: To provide a one component development method to form a high-quality image free from fogging or deterioration in the picture quality for a long period of time. SOLUTION: The one component development method is implemented by supplying the following toner onto a developing roller by a supply roller, carrying the supplied toner on the developing roller, making the carried toner form a toner thin layer of uniform thickness by a layer thickness regulating member disposed in contact with the developing roller, and bringing the developing roller carrying the toner thin layer of uniform thickness into contact with a photoreceptor carrying an electrostatic latent image to develop the electrostatic latent image. The toner is prepared by externally adding each predetermined amount of silica having a predetermined average particle diameter and of aluminum oxide-silicon dioxide mixture oxide having a predetermined average particle diameter to toner mother particles containing at least a colorant and a binder resin. The circumferential velocity ratio of the developing roller to the circumferential velocity of the photoreceptor is controlled to 1.10 to 1.25, thereby maintaining excellent stable supplying property of the toner for a long time. COPYRIGHT: (C)2005,JPO&NCIPI

Abstract translation: 要解决的问题：提供一种单组分显影方法以形成长时间不产生灰雾或劣化图像质量的高质量图像。 解决方案：单组分显影方法通过将供墨辊供给到显影辊上而将下列调色剂供给到显影辊上，从而将所携带的调色剂形成均匀厚度的调色剂薄层，由层 厚度调节构件与显影辊接触地设置，并使承载均匀厚度的调色剂薄层的显影辊与携带静电潜像的感光体接触，以形成静电潜像。 调色剂是通过向每个预定量的预定量的具有预定平均粒径的二氧化硅和具有预定平均粒径的氧化铝 - 二氧化硅混合氧化物外部添加至少含有着色剂和粘合剂树脂的调色剂母粒来制备的。 显影辊与感光体圆周速度的圆周速度比被控制在1.10到1.25，从而保持了调色剂长期稳定的供给特性。 版权所有（C）2005，JPO＆NCIPI

公开(公告)号：JP2005215501A

公开(公告)日：2005-08-11

申请号：JP2004024159

申请日：2004-01-30

Applicant: Sharp Corp ,  シャープ株式会社

Inventor： AKAZAWA YOSHIAKI ,  KUBO MASAHIKO ,  OGAWA SATORU ,  NAKATSU HIROMI ,  MATSUMOTO HIROO ,  SUZUKI MASARO

IPC: G03G9/08 ,  G03G9/087

Abstract: PROBLEM TO BE SOLVED: To provide toner which is excellent in electrostatic charge stability when it is used as a nonmagnetic one component developer, welding resistance to a developing blade and filming resistance to a developing roller and a photo conductor and forms a high concentration, uniform, and clear image with a small amount of toner. SOLUTION: In the case of producing the toner used as the developer of an image forming device 100, volume mean particle diameter is set to ≥6μm≤9μm, content of toner particles having ≥15.0μm particle diameter is set to ≤ 2.0 volume %, content of toner particles having ≤ 5.00μm particle diameter is set to ≥ 30 number % and content of toner particles having ≤ 3.00μm particle diameter is set to ≤ 10 number %. In the toner having such particle diameter distribution, electrostatic charging property is maintained through life even when it is used as the nonmagnetic one component developer, welding to the developing blade and filming to the developing roller and the recording medium such as the photoconductor are not generated and the high concentration, uniform and clear image is formed with a small amount of toner. COPYRIGHT: (C)2005,JPO&NCIPI

Abstract translation: 要解决的问题：为了提供当用作非磁性单组分显影剂时静电电荷稳定性优异的调色剂，对显影刮刀的耐焊接性和对显影辊和光导体的耐光性并形成高 浓缩，均匀，清晰的图像与少量的墨粉。 解决方案：在制造用作图像形成装置100的显影剂的调色剂的情况下，体积平均粒径设定为≥6μm≤9μm，粒径≥15.0μm的调色剂颗粒的含量设定为≤2.0 体积％，具有≤5.00μm粒径的调色剂颗粒的含量设定为≥30数量％，并且具有≤3.00μm粒径的调色剂颗粒的含量设定为≤10数量％。 在具有这种粒径分布的调色剂中，即使将其用作非磁性单组分显影剂，仍然保持静电充电性能，不会产生对显影辊的焊接和对显影辊的成膜以及诸如感光体的记录介质 并且用少量调色剂形成高浓度，均匀和清晰的图像。 版权所有（C）2005，JPO＆NCIPI