公开(公告)号：JP2007033794A

公开(公告)日：2007-02-08

申请号：JP2005216050

申请日：2005-07-26

Applicant: Sharp Corp ,  シャープ株式会社

Inventor： SHIBAI YASUHIRO ,  MATSUMOTO KATSURU

IPC: G03G9/087

Abstract: PROBLEM TO BE SOLVED: To provide a toner with which the diameter reduction of the toner is easy, the dependence on moisture is excellent, and filming and toner aggregation hardly occur.
SOLUTION: The toner is produced by stirring a colored resin composition containing a colorant in a hydrophobic medium together with a high polymer dispersant of 8.5 to 10 in SP value and 50 to 80°C in glass transition point and making the toner thereof into particles.
COPYRIGHT: (C)2007,JPO&INPIT

Abstract translation: 要解决的问题：为了提供调色剂的直径减小容易的调色剂，对水分的依赖性优异，并且几乎不发生成膜和调色剂聚集。 ＆lt; P＆gt;解决方案：调色剂通过在疏水性介质中搅拌含有着色剂的着色树脂组合物与SP值为8.5〜10的高分散剂和玻璃化转变温度为50〜80℃， 成颗粒。 版权所有（C）2007，JPO＆INPIT

公开(公告)号：JP2007011097A

公开(公告)日：2007-01-18

申请号：JP2005193324

申请日：2005-07-01

Applicant: Sharp Corp ,  シャープ株式会社

Inventor： MATSUMOTO KATSURU

IPC: G03G9/087 ,  G03G9/08

Abstract: PROBLEM TO BE SOLVED: To provide a method for manufacturing toners by which scrubbing, filtering and drying steps, particularly drying time can be shortened in relation to pulverized and polymerized toners without deteriorating the performances of the toners.
SOLUTION: In the method for manufacturing toners by subjecting toner particles to scrubbing, filtration, and agitation drying by warming under reduced pressure, fluidity improving particles are added in the agitation drying. When an external additive is added to the dried toner particles and processed, the fluidity improving particles and the external additive are set to be the same.
COPYRIGHT: (C)2007,JPO&INPIT

Abstract translation: 要解决的问题：提供一种制造调色剂的方法，通过该方法可以减少洗涤，过滤和干燥步骤，特别是相对于粉碎和聚合的调色剂的干燥时间，而不会降低调色剂的性能。 解决方案：在通过使调色剂颗粒通过在减压下加热进行洗涤，过滤和搅拌干燥来制造调色剂的方法中，在搅拌干燥中加入流动性改进颗粒。 当将外部添加剂加入到干燥的调色剂颗粒中并加工时，流动性改进颗粒和外部添加剂被设定为相同。 版权所有（C）2007，JPO＆INPIT

公开(公告)号：JP2006235030A

公开(公告)日：2006-09-07

申请号：JP2005046830

申请日：2005-02-23

Applicant: Sharp Corp ,  シャープ株式会社

Inventor： MATSUMOTO KATSURU ,  SHIBAI YASUHIRO ,  ARIYOSHI SATOSHI

IPC: G03G9/087 ,  G03G9/08 ,  G03G9/09

Abstract: PROBLEM TO BE SOLVED: To provide a method for manufacturing electrostatic charge image developing toner, capable of stably manufacturing a toner having a smaller amount of pulverized particles with industrially high productivity by facilitating controlling of the particle shape, in a method for manufacturing the toner by a non-polymerization method.
SOLUTION: The method for manufacturing the electrostatic charge image developing toner includes the processes of; granulating an aqueous dispersion liquid, including a kneaded material of toner raw materials by subjecting the kneaded material to high shearing at a velocity gradient of 50,000 to 100,000 sec
-1 generated by performing high-speed rotary shear stirring with a rotary shear stirring means of over 90 mm in the outside diameter of a turbine or rotor; performing operations to remove the aqueous dispersion liquid and/or a cleaning liquid under pressurization from the granulated substance, while vibrating a filter material within a cleaning chamber equipped with an impeller and the filter material a plurality number of times at the time of washing the granulated substance to obtain the toner from the cleaned granulated substance subjected repeatedly to washing.
COPYRIGHT: (C)2006,JPO&NCIPI

Abstract translation: 解决问题的方案：提供一种制造静电荷图像显影调色剂的方法，其能够通过促进粒子形状的控制而稳定地制造具有较低生产率的粉碎颗粒的调色剂，在制造方法中 调色剂通过非聚合方法。 解决方案：静电荷图像显影调色剂的制造方法包括以下步骤： 通过用高速旋转剪切搅拌产生的50,000至100,000秒 -1 的速度梯度对捏合的材料进行高剪切，使包含调色剂原料的捏合材料的水分散液成粒， 在涡轮机或转子的外径上超过90mm的旋转剪切搅拌装置; 进行从造粒物质的加压除去水分散液和/或清洗液的操作，同时在清洗造粒物的同时使配备有叶轮的清洗室内的过滤材料和过滤材料多次振动 从经过反复洗涤的清洁过的粒状物质中获得调色剂。 版权所有（C）2006，JPO＆NCIPI

公开(公告)号：JP2006106288A

公开(公告)日：2006-04-20

申请号：JP2004291835

申请日：2004-10-04

Applicant: Sharp Corp ,  シャープ株式会社

Inventor： MATSUMOTO KATSURU ,  ARIYOSHI SATOSHI ,  KAMOTO TAKANORI ,  KAWASE NORITAKA

IPC: G03G9/087

Abstract: PROBLEM TO BE SOLVED: To provide electrostatic charge image developing toner and its manufacturing method, wherein a step of removing an organic solvent by distillation is unnecessary and the particle size and particle form are easily controlled.
SOLUTION: The method for manufacturing an electrostatic charge image developing toner includes: a kneading step of melting and kneading a mixture containing a binder resin and a colorant to produce a resin kneaded material; a pulverizing step of pulverizing the resin kneaded material to produce a resin pulverized material; a dispersion step of dispersing the resin pulverized material in a liquid medium to prepare a dispersion liquid; and a spray-dry step of spray-drying the dispersion liquid while the resin pulverized material is kept at the temperature lower than its softening point, and thereby melting and bonding the resin pulverized material to obtain resin particles.
COPYRIGHT: (C)2006,JPO&NCIPI

Abstract translation: 要解决的问题：提供静电荷图像显影调色剂及其制造方法，其中通过蒸馏除去有机溶剂的步骤是不必要的，并且容易控制颗粒尺寸和颗粒形式。 解决方案：静电荷成像显影调色剂的制造方法包括：将含有粘合剂树脂和着色剂的混合物熔融捏合以制备树脂捏和材料的捏合步骤; 粉碎所述树脂捏合材料以制备树脂粉碎材料的粉碎步骤; 将树脂粉碎材料分散在液体介质中以制备分散液的分散步骤; 以及在将树脂粉碎材料保持在低于其软化点的温度下喷雾干燥分散液的喷雾干燥步骤，从而使树脂粉碎材料熔融并粘合以获得树脂颗粒。 版权所有（C）2006，JPO＆NCIPI

公开(公告)号：JP2005181848A

公开(公告)日：2005-07-07

申请号：JP2003425062

申请日：2003-12-22

Applicant: Sharp Corp ,  シャープ株式会社

Inventor： MATSUMOTO KATSURU ,  MURAKAMI TOSHIHIKO ,  FUJITA SAYAKA ,  TOYODA MITSUHIRO

IPC: G03G9/08 ,  G03G9/087 ,  G03G9/10 ,  G03G9/107 ,  G03G9/113

Abstract: PROBLEM TO BE SOLVED: To provide a developer which has superior low-temperature fixability, offset resistance, and blocking resistance, prevents carrier adhesion and toner scattering and can realize images of high quality which are free of fogging. SOLUTION: The developer contains a toner and a carrier, and the toner contains a binder resin containing amorphous resin and crystalline resin and copolymer particles which are obtained by making monomers containing 99 to 80wt% a radical polymerizable monomer and 1 to 20wt% a sulfonic acid-based monomer polymerized and have 0.01 to 2 μm for the average particle size of primary particles. The volume average grain size thereof is 3 to 10 μm. The carrier has electrical resistivity R(Ωcm) of 12 to 25 in common logarithm value, a first fluidity index of 63 to 75 sec/(50 cm 3 ) and a second fluidity index of 30 to 100 (Oe g)/cm 3 . COPYRIGHT: (C)2005,JPO&NCIPI

Abstract translation: 要解决的问题：为了提供具有优异的低温定影性，抗偏移性和抗粘连性的显影剂，防止载体粘附和调色剂飞散，并且可以实现没有起雾的高质量图像。 显影剂含有调色剂和载体，并且调色剂含有含有无定形树脂和结晶性树脂的粘合剂树脂和共聚物颗粒，其通过制备含有99〜80重量％的自由基聚合性单体和1〜20重量％ 磺酸基单体聚合，对于一次粒子的平均粒径为0.01〜2μ​​m。 体积平均粒径为3〜10μm。 载体的电阻率R（Ωcm）为通常的对数值为12〜25，第一流动性指数为63〜75秒/（50cm 3 /秒），第二流动性指数为30〜100（ Oe g）/ cm 3 。 版权所有（C）2005，JPO＆NCIPI

公开(公告)号：JP2005164647A

公开(公告)日：2005-06-23

申请号：JP2003399760

申请日：2003-11-28

Applicant: Sharp Corp ,  シャープ株式会社

Inventor： MATSUMOTO KATSURU ,  MURAKAMI TOSHIHIKO ,  FUJITA SAYAKA ,  TOYODA MITSUHIRO

IPC: G03G9/08 ,  G03G9/087 ,  G03G9/10 ,  G03G9/107 ,  G03G9/113

Abstract: PROBLEM TO BE SOLVED: To provide a developer having excellent low temperature fixing property of toner, offset resistance and blocking resistance, and capable of realizing a high-quality image without fog without causing carrier sticking or toner scattering. SOLUTION: The developer contains the following toner and carrier. The toner contains: a binder resin containing an amorphous resin and a crystalline resin; and copolymer particles obtained by polymerizing monomers containing 99 to 80 wt.% radical polymerizable monomers and 1 to 20 wt.% sulfonic acid-based monomers and having 0.01 to 2 μm average particle size of primary particles. The carrier has the electric resistance R (Ω cm) of 12 to 25 in terms of common logarithm (LogR), 63 to 75 sec/(50×cm 3 ) F1 defined by F1=AD×FR(1), and 30 to 100 Oe×g/cm 3 F2 defined by F2=AD×Hc(2), wherein AD represents apparent density, FR represents fluidity and Hc represents coercive force. COPYRIGHT: (C)2005,JPO&NCIPI

Abstract translation: 要解决的问题：提供具有优异的调色剂的低温定影性，耐偏移性和抗粘连性的显影剂，并且能够在不引起载体粘附或调色剂飞散的情况下实现高质量的图像。

解决方案：显影剂含有以下墨粉和载体。 调色剂含有：含有无定形树脂和结晶性树脂的粘合剂树脂; 以及通过使含有99〜80重量％的自由基聚合性单体和1〜20重量％的磺酸系单体并且具有0.01〜2μ​​m平均粒径的一次粒子的单体聚合而得到的共聚物粒子。 载体具有通过F1 = AD×FR定义的通常对数（LogR），63至75秒/（50×cm 3 / SP>）F1的电阻R（Ωcm）为12至25 （1）和由F2 = AD×Hc（2）定义的30至100 Oe×g / cm 3 SP SP，其中AD表示密度，FR表示流动性，Hc表示矫顽力。 版权所有（C）2005，JPO＆NCIPI

公开(公告)号：JP2004334041A

公开(公告)日：2004-11-25

申请号：JP2003132047

申请日：2003-05-09

Applicant: Sharp Corp ,  シャープ株式会社

Inventor： FUJITA SAYAKA ,  MATSUMOTO KATSURU ,  SAKAI MASAHIRO ,  MURAKAMI TOSHIHIKO ,  KATO TAKESHI ,  TENJIKU EIJI

IPC: G03G9/09 ,  G03G9/087

Abstract: PROBLEM TO BE SOLVED: To provide a method for evaluating whether a masterbatch for a toner is good or not, and to provide a good masterbatch for a toner obtained by the evaluation method and a toner. SOLUTION: In the method for evaluating a masterbatch for a toner consisting essentially of a binder resin and a colorant, whether relation satisfying -6≤logRm-logRr is established or not between the volume resistivity Rr (Ωcm) of the binder resin and the volume resistivity Rm (Ωcm) of the masterbatch is ascertained. The masterbatch for a toner establishes relation satisfying -6≤logRm-logRr according to the evaluation method. The toner comprises the masterbatch for a toner and has a volume average particle diameter of ≤7 μm. COPYRIGHT: (C)2005,JPO&NCIPI

Abstract translation: 要解决的问题：提供一种用于评估调色剂母料是否良好的方法，以及为通过评估方法获得的调色剂和调色剂提供良好的母料。 解决方案：在用于评估基本上由粘合剂树脂和着色剂组成的调色剂的母料的方法中，在粘合剂树脂的体积电阻率Rr（Ωcm）之间是否建立满足-6≤logRm-logRr的关系 并确定母料的体积电阻率Rm（Ωcm）。 调色剂母料根据评估方法建立满足-6≤logRm-logRr的关系。 调色剂包含用于调色剂的母料，体积平均粒径≤7μm。 版权所有（C）2005，JPO＆NCIPI

公开(公告)号：JP2004157272A

公开(公告)日：2004-06-03

申请号：JP2002321988

申请日：2002-11-06

Applicant: Sharp Corp ,  シャープ株式会社

Inventor： FUJITA SAYAKA ,  MATSUMOTO KATSURU ,  MURAKAMI TOSHIHIKO ,  TENJIKU EIJI

IPC: C08K3/04 ,  G03G9/08 ,  G03G9/087 ,  G03G9/09

CPC classification number: B82Y30/00 ,  C08K3/04 ,  C08K2201/011 ,  G03G9/0821 ,  G03G9/0904 ,  C08L67/02

Abstract: PROBLEM TO BE SOLVED: To provide a carbon black masterbatch for toner capable of achieving high image density even with a small amount of the toner and an electrophotographic toner using the masterbatch. SOLUTION: The masterbatch comprises a polyester resin as a binder resin and carbon black having a primary particle diameter of 10-100 nm as a colorant, 30-60 pts. wt. carbon black is blended, its lightness L* is ≤20, and a reflectance A at 400 nm and a reflectance B at 700 nm are within such ranges as to satisfy relation of the expression 0.5 COPYRIGHT: (C)2004,JPO

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：JP2010176039A

公开(公告)日：2010-08-12

申请号：JP2009020998

申请日：2009-01-30

Applicant: Sharp Corp ,  シャープ株式会社

Inventor： TOIZUMI KIYOSHI ,  MATSUMOTO KATSURU ,  ONDA YUTAKA

IPC: G03G15/16 ,  G03G9/08 ,  G03G21/00 ,  G03G21/14

Abstract: PROBLEM TO BE SOLVED: To provide an image forming apparatus having an intermediate transfer means, the apparatus for maintaining an image carrying means in a clean state for a long period of time and suppressing degradation in the image quality of a formed image even when the supply of a recording medium fails prior to a primary transferring step in the process of using a spherical toner. SOLUTION: The image forming apparatus 100 includes a photoreceptor drum 11, an intermediate transfer belt 25, a cleaning blade 42, a recording medium supply unit 5, a cleaning assist roller 50, a recording medium detection sensor, and a control unit. When a determination result that transfer is not possible is sent to the control unit, the unit performs control in such manner that the cleaning assist roller 50 enlarges a transfer nip and that a toner image on the photoreceptor drum 11 is transferred onto the intermediate transfer belt 25. COPYRIGHT: (C)2010,JPO&INPIT

Abstract translation: 要解决的问题：提供一种具有中间转印装置的图像形成装置，该装置用于将图像承载装置长时间保持在清洁状态，并且抑制成像图像的图像质量的劣化甚至 当在使用球形调色剂的过程中在一次转印步骤之前供应记录介质失效。 解决方案：图像形成装置100包括感光鼓11，中间转印带25，清洁刮板42，记录介质供给单元5，清洁辅助辊50，记录介质检测传感器和控制单元 。 当不能进行转印的确定结果被发送到控制单元时，单元以这样的方式执行控制，使得清洁辅助辊50放大转印辊隙，并且将感光鼓11上的调色剂图像转印到中间转印带 25.版权所有（C）2010，JPO＆INPIT