公开(公告)号：JP2006301373A

公开(公告)日：2006-11-02

申请号：JP2005124256

申请日：2005-04-21

Applicant: Sharp Corp ,  シャープ株式会社

Inventor： YAMAMOTO YOSHINORI ,  MATSUMOTO KATSURU ,  SHIBAI YASUHIRO

IPC: G03G9/08 ,  G03G9/087

Abstract: PROBLEM TO BE SOLVED: To provide a method for manufacturing a capsule toner having a uniform coating film without much limitation for the material of core particles to be used.
SOLUTION: The capsule toner with a uniform coating film is produced by applying a spray liquid having dispersion of resin particles (B) having 0.1 to 1 μm particle size through a spray nozzle 3 on surfaces of color resin particles (A) while forming a fluidized layer of the color resin particles (A) having 3 to 10 μm volume average particle diameter by a fluidizing gas, raising the coated particles through between a container 1 and a draft tube 7 to dry the surface, and utilizing impact force applied to the coated color resin particles (A) on colliding with a first stirring blade 4 and impact force applied to the color resin particles on colliding with a mesh screen 6 when the particles are made to flow into the coating region of the spray liquid.
COPYRIGHT: (C)2007,JPO&INPIT

Abstract translation: 要解决的问题：提供一种制造具有均匀涂膜的胶囊调色剂的方法，对所使用的核心颗粒的材料没有太大的限制。 解决方案：具有均匀涂膜的胶囊调色剂是通过在彩色树脂颗粒（A）的表面上通过喷雾喷嘴3施加具有0.1至1μm粒径的树脂颗粒（B）的分散体的喷雾液体而制成的，同时 通过流化气体形成具有3〜10μm体积平均粒径的着色树脂颗粒（A）的流化层，通过在容器1和引流管7之间提高涂覆颗粒以使表面干燥，并利用施加的冲击力 与当第一搅拌叶片4碰撞时的涂覆着色树脂颗粒（A）和当颗粒流入喷射液体的涂覆区域时与筛网6碰撞时施加到着色树脂颗粒上的冲击力。 版权所有（C）2007，JPO＆INPIT

公开(公告)号：JP2006201648A

公开(公告)日：2006-08-03

申请号：JP2005015060

申请日：2005-01-24

Applicant: Sharp Corp ,  シャープ株式会社

Inventor： MATSUMOTO KATSURU ,  ARIYOSHI SATOSHI ,  KAWASE NORITAKA ,  YAMAMOTO YOSHINORI

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

Abstract: PROBLEM TO BE SOLVED: To provide a toner excellent in filming resistance on a photoreceptor, capable of forming a clear image of high and uniform density with a small toner amount, and capable of achieving miniaturization of an image forming apparatus by miniaturization of a developing device, a developer based on the toner and a developing method using the toner or the developer. SOLUTION: The toner includes at least a binder resin and a colorant and has a predetermined average particle diameter. The developer consists essentially of the toner and an iron oxide. The developing method utilizes the toner or the developer. COPYRIGHT: (C)2006,JPO&NCIPI

Abstract translation: 要解决的问题：为了提供能够以小的调色剂量形成清晰的高密度和均匀的图像的感光体上的耐成膜性优异的调色剂，并且能够通过小型化实现图像形成装置的小型化 显影装置，基于调色剂的显影剂和使用调色剂或显影剂的显影方法。 调色剂至少包括粘合剂树脂和着色剂，并且具有预定的平均粒径。 显影剂基本上由调色剂和氧化铁组成。 显影方法利用调色剂或显影剂。 版权所有（C）2006，JPO＆NCIPI

公开(公告)号：JP2006195352A

公开(公告)日：2006-07-27

申请号：JP2005008970

申请日：2005-01-17

Applicant: Sharp Corp ,  シャープ株式会社

Inventor： MATSUMOTO KATSURU ,  SHIBAI YASUHIRO ,  ARIYOSHI SATOSHI

IPC: G03G9/087

Abstract: PROBLEM TO BE SOLVED: To provide a toner for electrophotography excellent in storage stability, fixing property, offset resistances and blocking resistances, environmental stability and low environmental load.
SOLUTION: The toner for electrophotography contains a binder resin and a colorant, wherein the binder resin is based on a polyester resin comprising a biodegradable polyester resin (A) having a hydroxyl value of 0.5-5 mgKOH/g, an acid value of 3-20 mgKOH/g and a melting point of 80-140°C, and an amorphous polyester resin (B) having a glass transition point of 50-75°C and a softening point of 115-135°C, and a mixing ratio ((A)/(B)) of the biodegradable polyester resin (A) to the amorphous polyester resin (B) is 5:95 to 45:55 by mass.
COPYRIGHT: (C)2006,JPO&NCIPI

Abstract translation: 要解决的问题：提供存储稳定性，定影性，抗偏移性和阻挡性，环境稳定性和低环境负荷的电子照相用调色剂。 解决方案：电子照相用调色剂含有粘合剂树脂和着色剂，其中粘合剂树脂基于包含羟值为0.5-5mgKOH / g的可生物降解的聚酯树脂（A）的聚酯树脂，酸值 为3-20mgKOH / g，熔点为80-140℃，玻璃化转变温度为50-75℃，软化点为115-135℃的无定形聚酯树脂（B）和 生物降解性聚酯树脂（A）与无定形聚酯树脂（B）的混合比（（A）/（B））为5:95〜45:55质量％。 版权所有（C）2006，JPO＆NCIPI

公开(公告)号：JP2004333759A

公开(公告)日：2004-11-25

申请号：JP2003128124

申请日：2003-05-06

Applicant: Sharp Corp ,  シャープ株式会社

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

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

Abstract: PROBLEM TO BE SOLVED: To provide toner for electrophotographs having improved balance in low-temperature fixing properties, hot-offset-resistant properties, and shelf life. SOLUTION: The toner for developing electrostatic charge images contains at least one type of a binding resin, where at least two types of resins are mixed, and a crystalline polyester resin (resin (C)) whose melting point is in the range of 80°C-140°C, and a wax (W) whose penetration is 1.5 or smaller and the melting point is in the range of 80-110°C. The binding resin comprises resin (A) that has the softening point of 120-170°C, glass transition point of 58-75°C, and a chloroform insoluble fraction of 5-50 percentage by mass; and resin (B) that has the softening point of 90-120°C and the glass transition point (Tg) of 58-75°C. The chloroform insoluble fraction of the binding resin, where the resins (A) and (B) are mixed, is smaller than 30 mass percent. COPYRIGHT: (C)2005,JPO&NCIPI

公开(公告)号：JP2011052058A

公开(公告)日：2011-03-17

申请号：JP2009200120

申请日：2009-08-31

Applicant: Sharp Corp ,  シャープ株式会社

Inventor： MATSUMOTO KATSURU ,  SHIBAI YASUHIRO ,  ONDA YUTAKA ,  TOIZUMI KIYOSHI

IPC: C08J3/03 ,  C08J3/16 ,  G03G9/087

Abstract: PROBLEM TO BE SOLVED: To provide a method for producing a fine resin particle dispersion liquid which can be used for producing toners capable of forming high quality images and has a narrow particle size distribution width.
SOLUTION: The method for producing a fine resin particle dispersion liquid is characterized by comprising a melting process, a phase inversion emulsification process for adding the first aqueous medium to the obtained melted state resin particles in a prescribed ratio, a dilution process for adding the second aqueous medium to the high pressure resin fine particle dispersion liquid, and a gradually cooling gradually pressure-reducing process, wherein a pressure P2 at the first aqueous medium-added position, and pressures P1 and P3 at the just front and just rear positions satisfy P1>P3>P2; a pressure P5 at the second aqueous medium-added position, and pressures P4 and P6 at the just front and just rear positions satisfy P4>P6>P5; and the retention times T1, T2 and T3 in the melting process, the phase inversion emulsification process, and both the processes of the dilution process and the gradually cooling gradually pressure-reducing process satisfy relations of T2>T3>T1 and T2=(1.2 to 2.0)×T1.
COPYRIGHT: (C)2011,JPO&INPIT

Abstract translation: 解决的问题：提供一种可用于生产能够形成高质量图像并具有窄粒度分布宽度的调色剂的细树脂颗粒分散液的制备方法。 解决方案：用于生产精细树脂颗粒分散液的方法的特征在于包括熔融过程，用于以规定比例将所述第一水性介质加入到所获得的熔融状态树脂颗粒中的相转化乳化方法， 将第二水性介质加入到高压树脂微粒分散液中，逐渐降温逐步减压过程，其中在第一含水介质添加位置处的压力P2和刚刚前后刚好的压力P1和P3 位置满足P1> P3> P2; 在第二水性介质添加位置处的压力P5，刚好正面和刚好的后方位置处的压力P4和P6满足P4> P6> P5; 熔融过程中的保留时间T1，T2和T3，相转化乳化过程，以及稀释过程和逐渐降温逐步降压过程的两个过程都满足T2> T3> T1和T2 =（1.2 至2.0）×T1。 版权所有（C）2011，JPO＆INPIT

公开(公告)号：JP2010101974A

公开(公告)日：2010-05-06

申请号：JP2008271451

申请日：2008-10-21

Applicant: Sharp Corp ,  シャープ株式会社

Inventor： MATSUMOTO KATSURU ,  KIKAWA KEIICHI ,  MAEZAWA YOSHIHIRO

IPC: G03G9/087 ,  G03G9/08

Abstract: PROBLEM TO BE SOLVED: To provide a method of manufacturing a toner for obtaining the toner of a core-shell structure that has compatibility of both low-temperature fixing and preservation stability. SOLUTION: The method of manufacturing the toner covers shell particles on the surface of core particles to obtain the toner having the core-shell structure, by using a stirring means 200 provided with a container 202 which is formed in the form of a hollow cylinder and a relatively rotatable stirring blade 201 for the container 202, by being arranged to have a gap G with an inner wall face of the container 202 on a hollow region of the container 202 in a covering process. In the covering process, the gap G is set at 0.1-0.5 mm, and the circumferential speed on the edge of a radial direction of the stirring blade 201 is set 5-30 m/sec. COPYRIGHT: (C)2010,JPO&INPIT

Abstract translation: 解决的问题：提供一种制造调色剂的方法，该调色剂用于获得兼具低温定影和保存稳定性的核 - 壳结构的调色剂。 解决方案：制造调色剂的方法覆盖芯颗粒表面上的壳颗粒，以获得具有核 - 壳结构的调色剂，通过使用设置有容器202的搅拌装置200，容器202形成为 中空圆筒和用于容器202的相对可旋转的搅拌叶片201，通过在覆盖过程中被布置成具有在容器202的中空区域上的具有容器202的内壁面的间隙G. 在覆盖过程中，间隙G设定为0.1-0.5mm，搅拌叶片201的径向边缘的圆周速度设定为5-30m / sec。 版权所有（C）2010，JPO＆INPIT

公开(公告)号：JP2010008961A

公开(公告)日：2010-01-14

申请号：JP2008171543

申请日：2008-06-30

Applicant: Sharp Corp ,  シャープ株式会社

Inventor： KIKAWA KEIICHI ,  MATSUMOTO KATSURU ,  MAEZAWA YOSHIHIRO

IPC: G03G9/087 ,  G03G9/08

Abstract: PROBLEM TO BE SOLVED: To provide a method for producing a toner in which constituting materials in the toner are uniformly and highly dispersed, and the particle shape is uniformed with a narrow particle size distribution width. SOLUTION: In a melting and kneading step, at least a binder resin and a coloring agent are melted and kneaded to obtain a melt kneaded product. In a melt kneaded product particle dispersion step, the melt kneaded product is pulverized at a temperature higher by 50-100°C than its softening temperature by use of a high-pressure homogenizer, and melt kneaded product particles with a volume average particle size of 0.1-0.4 μm are dispersed in a liquid medium. In a coagulation step, the melt kneaded product particles contained in the slurry of the melt kneaded product particles are coagulated while raising the temperature at a rate of 0.5-4.0°C/min. COPYRIGHT: (C)2010,JPO&INPIT

Abstract translation: 要解决的问题：提供一种调色剂的制造方法，其中调色剂中的构成材料均匀且高度分散，并且颗粒形状以窄的粒度分布宽度均匀。 解决方案：在熔融和捏合步骤中，至少将粘合剂树脂和着色剂熔融并捏合以获得熔融捏合产物。 在熔融捏合产物颗粒分散步骤中，使用高压均化器将熔融捏和产物在比其软化温度高50-100℃的温度下粉碎，将体积平均粒径为 0.1-0.4μm分散在液体介质中。 在凝固步骤中，将熔融捏合产物颗粒的浆料中所含的熔融捏合产物颗粒凝固，同时以0.5-4.0℃/ min的速度升高温度。 版权所有（C）2010，JPO＆INPIT

公开(公告)号：JP2009015174A

公开(公告)日：2009-01-22

申请号：JP2007178960

申请日：2007-07-06

Applicant: Sharp Corp ,  シャープ株式会社

Inventor： KIKAWA KEIICHI ,  MATSUMOTO KATSURU

IPC: G03G9/087

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

Abstract: PROBLEM TO BE SOLVED: To manufacture a toner which suppresses bleed-out of a wax component to a surface thereof, hardly causes filming on a photoreceptor and an offset phenomenon in a high-temperature region, excels in image reproducibility, and can form a high-quality image with high definition and high resolution.
SOLUTION: The toner is manufactured by a manufacturing method including: a preliminary comminution step S1 of comminuting a melt-kneaded product of toner materials in a liquid to obtain a coarse powder slurry containing toner coarse powder; a pulverization step S2 of further pulverizing the toner coarse powder by passing the coarse powder slurry through a pressure-resistant nozzle under heating and pressurization to obtain a fine powder slurry containing toner fine powder in a heated and pressurized state; a cooling step S3 of cooling the fine powder slurry; and an evacuating step S4 of reducing the pressure of the fine powder slurry.
COPYRIGHT: (C)2009,JPO&INPIT

Abstract translation: 要解决的问题为了制造抑制蜡组分向其表面渗出的调色剂，在高温区域中几乎不会导致感光体上的成膜和偏移现象，图像再现性优异，并且可以 形成高清晰，高分辨率的高质量图像。 调色剂通过以下制造方法制造：包括：初步粉碎步骤S1，其将调色剂材料的熔融捏合产物粉碎成液体，得到含有调色剂粗粉末的粗粉末; 粉碎步骤S2，通过在加热和加压下通过耐压喷嘴使粗粉末浆料进一步粉碎调色剂粗粉，得到含有加热和加压状态的调色剂细粉末的细粉末浆料; 冷却细粉浆料的冷却步骤S3; 以及减小细粉浆料的压力的排气工序S4。 版权所有（C）2009，JPO＆INPIT

公开(公告)号：JP2008310268A

公开(公告)日：2008-12-25

申请号：JP2007160625

申请日：2007-06-18

Applicant: Sharp Corp ,  シャープ株式会社

Inventor： MATSUMOTO KATSURU ,  KIKAWA KEIICHI ,  NAGAOKA AYAE

IPC: G03G9/087

CPC classification number: G03G9/0806 ,  G03G9/0819

Abstract: PROBLEM TO BE SOLVED: To provide a toner particle improving dispersibility of a colorant and a release agent, and achieving a satisfactory particle size distribution, and to provide a method for producing the toner particle, a two component developer, a developing device, and an image forming apparatus.
SOLUTION: Toner raw materials comprising a polymerizable monomer, a colorant, a release agent or the like are mixed in a raw material mixing step (S1); and the mixture is emulsified under pressure in an emulsifying step (S2) so as to obtain a polymerizable composition. The polymerizable composition is cooled in a cooling step (S3), and the cooled polymerizable composition is decompressed in a decompression step (S4). In the polymerizable composition obtained in this way, the colorant and the release agent are uniformly finely dispersed, and polymerization reaction is performed in a polymerization step (S5), thereby obtaining toner particles with uniform particle diameters and a sharp particle size distribution.
COPYRIGHT: (C)2009,JPO&INPIT

Abstract translation: 要解决的问题：提供调色剂颗粒改善着色剂和脱模剂的分散性，并且实现令人满意的粒度分布，并提供调色剂颗粒的制备方法，双组分显影剂，显影装置 ，以及图像形成装置。 解决方案：在原料混合步骤（S1）中混合包含可聚合单体，着色剂，脱模剂等的调色剂原料; 在乳化步骤（S2）中将该混合物在压力下乳化，得到可聚合组合物。 在冷却工序（S3）中冷却聚合性组合物，在减压工序（S4）中使冷却后的聚合性组合物减压。 在以这种方式获得的可聚合组合物中，着色剂和脱模剂均匀地细分散，并且在聚合步骤（S5）中进行聚合反应，从而获得具有均匀粒径和尖锐粒度分布的调色剂颗粒。 版权所有（C）2009，JPO＆INPIT

公开(公告)号：JP2007219451A

公开(公告)日：2007-08-30

申请号：JP2006043072

申请日：2006-02-20

Applicant: Sharp Corp ,  シャープ株式会社

Inventor： MATSUMOTO KATSURU ,  SHIBAI YASUHIRO

IPC: G03G9/087

CPC classification number: G03G9/0804 ,  G03G9/0815 ,  G03G9/0817 ,  G03G9/08755

Abstract: PROBLEM TO BE SOLVED: To provide a method for manufacturing a toner having excellent image reproducibility, for forming a high quality image having high definition and high resolution, and also having excellent transparency and low temperature fixability. SOLUTION: In the method for manufacturing a toner where resin particles are at least mixed with a coloring agent, the mixture is aggregated, and the obtained aggregated matter is heated, so as to obtain toner particles, a fixing resin is atomized by an atomizing method comprising: a coarse powder preparation stage S1; a slurry preparation stage S2; a pulverization stage S3; a cooling stage S4; and a pressure reducing stage S5, wherein the slurry of binding resin coarse powder obtained by the stage S1 and the stage S2 passes through a pressure resistant nozzle under heating-pressure in the stage S3, thus the binding resin coarse powder is pulverized, so as to obtain the resin particles, and the coarsening of the resin particles can be prevented by providing the stage S4 and the stage S5 directly after the stage S3. COPYRIGHT: (C)2007,JPO&INPIT

Abstract translation: 要解决的问题：提供一种制造具有优异的图像再现性的调色剂的方法，用于形成具有高分辨率和高分辨率的高质量图像，并且还具有优异的透明性和低温定影性。 解决方案：在用于制造树脂颗粒至少与着色剂混合的调色剂的方法中，混合物被聚集，并且将所得到的聚集物质加热，从而获得调色剂颗粒，定影树脂被雾化 一种雾化方法，包括：粗粉末制备阶段S1; 浆料制备阶段S2; 粉碎阶段S3; 冷却台S4; 和减压台S5，其中通过阶段S1和阶段S2获得的粘合树脂粗粉的浆料在阶段S3中通过加压压力下的耐压喷嘴，从而粉碎粘合树脂粗粉，以便 以获得树脂颗粒，并且可以通过在载物台S3之后直接设置载物台S4和载物台S5来防止树脂颗粒的粗大化。 版权所有（C）2007，JPO＆INPIT