公开(公告)号：JP2015045670A

公开(公告)日：2015-03-12

申请号：JP2013175128

申请日：2013-08-27

Applicant: シャープ株式会社 ,  Sharp Corp

Inventor： TSUKIYAMA TAKESHI ,  KAWASE NORITAKA

IPC: G03G9/08 ,  G03G9/087

Abstract: 【課題】耐ブロッキング性を損なうことなく、低温定着性を向上させたカプセルトナー及びカプセルトナーの製造方法を提供する。【解決手段】スチレンアクリル系樹脂を含む結着樹脂、着色剤及び離型剤を含有するコア粒子と、コア粒子を被覆し、少なくともアクリル酸を含むアクリル系モノマー成分又は少なくともメタクリル酸を含むメタクリル系モノマー成分を重合して得られる第1アクリル系樹脂を含む中間層と、中間層を被覆し、アクリル系モノマー成分又はメタクリル系モノマー成分を重合して得られる第2アクリル系樹脂を含むシェル層と、を備えるカプセルトナーであって、第1アクリル系樹脂を構成するモノマー成分に含まれるアクリル酸又はメタクリル酸の含有率が、第2アクリル系樹脂を構成するモノマー成分に含まれるアクリル酸又はメタクリル酸の含有率よりも大きいことを特徴とするカプセルトナーである。【選択図】図1

Abstract translation: 要解决的问题：提供一种胶囊调色剂，其中低温定影性得到改善而不损害耐粘连性，以及制造胶囊调色剂的方法。提供了一种胶囊调色剂，其包含中间层，该中间层包括：含有粘合剂的核心颗粒 树脂，包括苯乙烯丙烯酸树脂，着色剂和脱模剂; 用于覆盖核心颗粒并含有通过聚合至少含有丙烯酸的丙烯酸单体组分或至少含有甲基丙烯酸的甲基丙烯酸单体组分而获得的第一丙烯酸树脂的中间层; 以及用于覆盖中间层并包含通过聚合丙烯酸单体组分或甲基丙烯酸单体组分而获得的第二丙烯酸树脂的壳层，所述胶囊调色剂的特征在于构成构成该单体组分的单体组分中包含的丙烯酸或甲基丙烯酸的含量百分含量 第一丙烯酸树脂比构成第二丙烯酸类树脂的单体成分中所含的丙烯酸或甲基丙烯酸的含量大。

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：JP2009288566A

公开(公告)日：2009-12-10

申请号：JP2008141580

申请日：2008-05-29

Applicant: Sharp Corp ,  シャープ株式会社

Inventor： YAMADA SAORI ,  KAWASE NORITAKA ,  AKAZAWA YOSHIAKI

IPC: G03G9/08

CPC classification number: G03G9/0827 ,  G03G9/0819 ,  G03G9/0825 ,  G03G9/09321 ,  G03G9/09328 ,  G03G9/09725

Abstract: PROBLEM TO BE SOLVED: To provide toner having improved flowability, electrification, and fixing property and to provide developer, a developing device, and an image forming device. SOLUTION: This toner contains toner particles having a shell layer formed on a surface of core particle each and an external additive and has the following characteristics: (1) the shell layer is formed as a film on the surface of the core particle, (2) shape factor SF-2 is 120 or more and 140 or less, and (3) BET specific surface area measured by the BET method is 1.2 m 2 /cm 3 or more and 4.0 m 2 /cm 3 or less. The developing device in the image forming device is filled with the developer containing this toner to form image. COPYRIGHT: (C)2010,JPO&INPIT

Abstract translation: 要解决的问题：提供具有改善的流动性，带电性和定影性的调色剂，并提供显影剂，显影装置和图像形成装置。 解决方案：该调色剂含有具有形成在芯颗粒表面上的壳层的调色剂颗粒和外部添加剂，具有以下特征：（1）壳层在芯颗粒的表面上形成为膜 ，（2）形状因子SF-2为120以上且140以下，（3）通过BET法测定的BET比表面积为1.2m 2 / SP>以上且4.0m 2 / SP以上。 图像形成装置中的显影装置被含有该调色剂的显影剂填充以形成图像。 版权所有（C）2010，JPO＆INPIT

公开(公告)号：JP2009093088A

公开(公告)日：2009-04-30

申请号：JP2007265868

申请日：2007-10-11

Applicant: Sharp Corp ,  シャープ株式会社

Inventor： YAMADA SAORI ,  KAWASE NORITAKA ,  AKAZAWA YOSHIAKI

IPC: G03G9/08 ,  G03G9/087 ,  G03G9/097 ,  G03G9/10

CPC classification number: G03G9/09392 ,  G03G9/09328 ,  G03G9/09335

Abstract: PROBLEM TO BE SOLVED: To provide: a toner that is excellent in a charge rising property, environmental stability and life stability during printing and that causes less fogging; a method of manufacturing the toner; a two-component developer; a developing device; and an image forming apparatus. SOLUTION: The toner contains a core particle containing a binder resin and a colorant, and a coating layer which contains resin and a charge control agent and is formed on a surface of the core particle. At least part of the resin contained in the coating layer is fused to the core particle, and the charge control agent is dispersed and immobilized in the coating layer. COPYRIGHT: (C)2009,JPO&INPIT

Abstract translation: 要解决的问题：提供：在打印期间电荷上升性，环境稳定性和寿命稳定性优异并且引起较少起雾的调色剂; 制造调色剂的方法; 一个双组分开发商; 显影装置; 和图像形成装置。 解决方案：调色剂含有含有粘合剂树脂和着色剂的芯颗粒，以及包含树脂和电荷控制剂并形成在芯颗粒的表面上的涂层。 包覆在涂层中的树脂的至少一部分与核心颗粒融合，电荷控制剂被分散并固定在涂层中。 版权所有（C）2009，JPO＆INPIT

公开(公告)号：JP2009014757A

公开(公告)日：2009-01-22

申请号：JP2007173067

申请日：2007-06-29

Applicant: Sharp Corp ,  シャープ株式会社

Inventor： KAWASE NORITAKA

IPC: G03G9/08 ,  G03G9/087

Abstract: PROBLEM TO BE SOLVED: To provide a toner having excellent stability even as time elapses such as stability in charging and a method of manufacturing the same, and to provide a two-component developer using the toner, a developing device, and an image forming apparatus. SOLUTION: The toner 1 is the capsule toner made of core particles 2 being resin particles and fine resin particles 3 covering surfaces of the core particles 2. The fine resin particle 3 forms a coating film 4 when a process for forming a film progresses. The core particle 2 and the fine resin particle 3 are made of noncrystalline polyester resin. COPYRIGHT: (C)2009,JPO&INPIT

Abstract translation: 要解决的问题：即使在诸如充电稳定性等时间经过的时候也提供具有优异的稳定性的调色剂，并且提供使用调色剂的二组分显影剂，显影装置和 图像形成装置。 调色剂1是由作为树脂颗粒的核心颗粒2和覆盖核心颗粒2的表面的细小树脂颗粒3构成的胶囊调色剂。当形成膜的方法时，微粒树脂颗粒3形成涂膜4 进步。 芯颗粒2和细树脂颗粒3由非结晶性聚酯树脂制成。 版权所有（C）2009，JPO＆INPIT

公开(公告)号：JP2008191639A

公开(公告)日：2008-08-21

申请号：JP2007238473

申请日：2007-09-13

Applicant: Sharp Corp ,  シャープ株式会社

Inventor： KAWASE NORITAKA

IPC: G03G9/08 ,  G03G9/087

Abstract: PROBLEM TO BE SOLVED: To provide a toner which is capable of maintaining good cleaning property stably for a long period of time, prevents toner aggregation by the effect of a coating layer formed on a surface thereof, and excels in aging stability, a method of manufacturing the toner, a two-component developer, a developing apparatus, and an image forming apparatus. SOLUTION: The toner is obtained by forming coating layers containing fine resin particles on surfaces of core particles containing a binder resin and a colorant, wherein the coating layers are formed by partially fusing the fine resin particles to at least either the core particles or adjacent fine resin particles. COPYRIGHT: (C)2008,JPO&INPIT

Abstract translation: 要解决的问题：为了提供能够长时间稳定地保持良好清洁性能的调色剂，通过在其表面上形成的涂层的效果来防止调色剂聚集，并且具有优异的老化稳定性， 调色剂的制造方法，双组分显影剂，显影装置和图像形成装置。 解决方案：通过在含有粘合剂树脂和着色剂的核心颗粒的表面上形成含有树脂微粒的涂层而获得调色剂，其中通过将细小树脂颗粒部分地熔合至至少两种核颗粒 或相邻的细树脂颗粒。 版权所有（C）2008，JPO＆INPIT

公开(公告)号：JP2007316164A

公开(公告)日：2007-12-06

申请号：JP2006143373

申请日：2006-05-23

Applicant: Sharp Corp ,  シャープ株式会社

Inventor： KAWASE NORITAKA

IPC: G03G9/087 ,  G03G9/08

Abstract: PROBLEM TO BE SOLVED: To produce a toner in which the amount of the bleed out of waxes is remarkably reduced, which has offset resistance, a wide non-offset region and an excellent fixability to a recording medium, whose flocculation upon preservation is hard to occur, and which can form a high resolution image with a high image density.
SOLUTION: In a melt emulsification process where a molten kneaded matter of a toner raw material and an aqueous medium comprising a dispersant are mixed under heating, so as to produce toner particles, two or more kinds of waxes each having a melting point of 60 to 100°C are incorporated into the toner raw material, thus the dispersibility of the waxes in the obtained toner particles is improved, so as to prevent the bleed out of the waxes to the toner particle surfaces.
COPYRIGHT: (C)2008,JPO&INPIT

Abstract translation: 要解决的问题：为了生产其中渗出量的蜡显着降低的调色剂，其具有抗偏移性，宽非偏移区域和对于保存絮凝的记录介质的优异的定影性 很难发生，并且可以形成具有高图像密度的高分辨率图像。 解决方案：在熔融乳化过程中，将调色剂原料的熔融捏合物和包含分散剂的水性介质在加热下混合，以产生调色剂颗粒，每种具有熔点的两种或更多种蜡 60至100℃被加入到调色剂原料中，从而提高了所得调色剂颗粒中蜡的分散性，从而防止蜡向调色剂颗粒表面渗出。 版权所有（C）2008，JPO＆INPIT

公开(公告)号：JP2007264136A

公开(公告)日：2007-10-11

申请号：JP2006086642

申请日：2006-03-27

Applicant: Sharp Corp ,  シャープ株式会社

Inventor： ARIYOSHI SATOSHI ,  KAWASE NORITAKA ,  TSUBAKI YORIHISA

IPC: G03G9/087 ,  G03G9/08

CPC classification number: G03G9/081 ,  G03G9/0815 ,  G03G9/08795 ,  G03G9/08797

Abstract: PROBLEM TO BE SOLVED: To provide a method for manufacturing toner by which substantially spherical toner particles can be readily manufactured. SOLUTION: A kneaded material obtained by heating, melting and kneading a toner composition comprising at least a binder resin and a colorant, and an aqueous medium containing water are put in a housing container 2 of a granulating device 1 and heated by a heater 13, while being stirred to disperse the kneaded material into a softened state in the aqueous medium. Here, a set granulation temperature T1, at which a loss tangent calculated by dividing the loss modulus G" of the kneaded material by the storage modulus G' reaches a preliminarily determined loss tangent of A, specifically in the range of 0.5 or larger but smaller than 5.0, is inputted to a granulation temperature input means 17. The granulation temperature which is the temperature of the aqueous medium measured with a thermometer 14, consequently, the temperature of the kneaded material in the aqueous medium is adjusted to the set granulation temperature T1 by controlling the operation of the heater 13 with a control means 15 so as to render the granulation temperature which is the temperature of the aqueous medium into the set granulation temperature T1 inputted by the input means 17. COPYRIGHT: (C)2008,JPO&INPIT

Abstract translation: 要解决的问题：提供一种制造调色剂的方法，通过该方法可以容易地制造大致球形的调色剂颗粒。 解决方案：将通过加热，熔融和捏合至少包含粘合剂树脂和着色剂的调色剂组合物和含水的水性介质获得的捏合材料放入造粒装置1的容纳容器2中并加热至 加热器13，同时搅拌以将捏合的物质在水性介质中分解成软化状态。 这里，将通过将捏合材料的损耗模量G“除以储能模量G'而计算的损耗角正切值达到预先确定的A的损耗角正切的定形造粒温度T1，具体地在0.5以上，更小的范围内 将其输入到造粒温度输入装置17中。将用温度计14测量的水性介质的温度的造粒温度，因此将水性介质中的捏合材料的温度调节至设定的造粒温度T1 通过控制装置15控制加热器13的操作，使得作为水性介质的温度的造粒温度成为由输入装置17输入的设定造粒温度T1。版权所有（C）2008 ，JPO＆INPIT

公开(公告)号：JP2007178669A

公开(公告)日：2007-07-12

申请号：JP2005376292

申请日：2005-12-27

Applicant: Sharp Corp ,  シャープ株式会社

Inventor： KAWASE NORITAKA ,  SHIBAI YASUHIRO ,  ARIYOSHI SATOSHI

IPC: G03G9/087 ,  G03G9/08

Abstract: PROBLEM TO BE SOLVED: To provide a method for manufacturing a toner by which a toner capable of preventing hot offset and having a narrow particle size distribution can be manufactured without using an organic solvent. SOLUTION: The toner is manufactured by carrying out a melt kneading step (s1) of melt-kneading raw materials including a binder resin, a colorant, a release agent and a compatibilizer which compatibilizes the binder resin and the release agent to disperse the raw materials except the binder resin in the binder resin, and a granulation step (s3) of obtaining toner particles by softening the binder resin in a resin kneaded material obtained at the melt kneading step in an aqueous medium comprising a dispersant and water, and dispersing the resin kneaded material in the aqueous medium to produce toner particles. 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，通过该方法可以制造能够防止热偏移并且具有窄的粒度分布的调色剂，而不使用有机溶剂。 解决方案：通过进行熔融捏合原料（s1）的熔融捏合步骤（s1）制造调色剂，所述原料包括粘合剂树脂，着色剂，脱模剂和使粘合剂树脂和脱模剂相容的相容剂以分散 除了粘合剂树脂中的粘合剂树脂以外的原料，以及通过使在熔融捏合步骤中获得的树脂捏和材料中的粘合剂树脂在包含分散剂和水的水性介质中软化粘合剂树脂而获得调色剂颗粒的造粒步骤（s3），以及 将树脂捏合物分散在水性介质中以产生调色剂颗粒。 版权所有（C）2007，JPO＆INPIT