公开(公告)号：US06627374B2

公开(公告)日：2003-09-30

申请号：US09865700

申请日：2001-05-29

申请人： Hidekazu Fumita ,  Hitoshi Kanda ,  Hiroshi Koyama ,  Minoru Omura

发明人： Hidekazu Fumita ,  Hitoshi Kanda ,  Hiroshi Koyama ,  Minoru Omura

IPC分类号： G03G908

CPC分类号： G03G9/0806 ,  G03G9/0815

摘要： A process for producing toner particles, comprising polymerizing in an aqueous dispersion medium a polymerizable monomer composition containing at least a polymerizable monomer and a colorant, to form colored polymer particles, followed by washing and then dehydration to obtain toner particles, and feeding the toner particles into an inside-evacuatable and heatable container to make vacuum heat treatment while introducing into the container an injection medium having a temperature lower than glass transition temperature Tg of the toner particles and selected from the group consisting of i) saturated steam, ii) superheated steam and iii) high-humidity air having an enthalpy of 2,500 kJ/kg (dry air) or higher. Also disclosed is a system which carries out the above process.

公开(公告)号：US06495303B1

公开(公告)日：2002-12-17

申请号：US09699500

申请日：2000-10-31

申请人： Hitoshi Kanda ,  Takeshi Naka ,  Hiroshi Koyama ,  Yoshinori Tsuji

发明人： Hitoshi Kanda ,  Takeshi Naka ,  Hiroshi Koyama ,  Yoshinori Tsuji

IPC分类号： G03G908

CPC分类号： G03G9/0817 ,  G03G9/0806

摘要： A process for producing polymerized toner comprises polymerizing a composition containing a polymerizable monomer and a colorant in a medium to form colored resin particles, separating the particles from the medium by filtration, and drying the separated particles. The separation of the particles from the medium is effected by a decanter-type centrifugal separator equipped with an outer rotary cylinder which contains a screw conveyor freely rotating relative to the cylinder.

摘要翻译： 制备聚合调色剂的方法包括在介质中聚合含有可聚合单体和着色剂的组合物以形成着色树脂颗粒，通过过滤从介质中分离颗粒，并干燥分离的颗粒。 颗粒与介质的分离是通过装有外旋转圆筒的倾析器式离心分离器进行的，该外旋转圆筒包含相对于圆筒自由旋转的螺旋输送机。

公开(公告)号：US06207339B1

公开(公告)日：2001-03-27

申请号：US09377517

申请日：1999-08-19

申请人： Masayoshi Kato ,  Hitoshi Kanda ,  Tatsuya Nakamura

发明人： Masayoshi Kato ,  Hitoshi Kanda ,  Tatsuya Nakamura

IPC分类号： G03G9087

CPC分类号： G03G9/0806

摘要： A process for producing a toner has the steps of, polymerizing a polymerizable monomer composition containing at least a polymerizable monomer and a colorant, in an aqueous dispersion medium to form colored polymer particles, and thereafter washing the colored polymer particles, followed by dewatering to prepare wet colored polymer particles, subjecting the resultant wet colored polymer particles to substantial removal of the water held by the wet colored polymer particles, by means of a dryer making use of hot air to obtain toner particles, and drying the toner particles under reduced pressure by means of a vacuum dryer so that polymerizable monomers remaining in the toner particles come to be in a residue of 200 ppm or less.

摘要翻译： 调色剂的制造方法具有以下步骤：将含有至少可聚合单体和着色剂的可聚合单体组合物在水分散介质中聚合以形成着色聚合物颗粒，然后洗涤着色聚合物颗粒，然后脱水以制备 湿着色聚合物颗粒，通过使用热空气的干燥器，使得到的湿着色聚合物颗粒基本上除去湿着色聚合物颗粒保持的水，得到调色剂颗粒，并通过减压干燥调色剂颗粒 真空干燥机的方法，使残留在调色剂颗粒中的可聚合单体的残留量为200ppm以下。

公开(公告)号：US5083713A

公开(公告)日：1992-01-28

申请号：US506827

申请日：1990-04-10

申请人： Hitoshi Kanda ,  Tsuko Kobayashi

发明人： Hitoshi Kanda ,  Tsuko Kobayashi

IPC分类号： B02C13/06 ,  B02C13/14

CPC分类号： B02C13/06 ,  B02C13/14 ,  B02C19/0056

摘要： A process for disintegrating an agglomerated mass of silica fine powder comprises introducing the silica fine powder into an impact portion defined by either a rotatory strip and a fixed strip or two rotatory strips, and having a gap therebetween of 0.5 to 10 mm and mechanically impacting the silica fine powder by at the impact portion to disintegrate the agglomerated mass.

摘要翻译： 粉碎二氧化硅细粉末的团聚体的方法包括将二氧化硅细粉末引入到由旋转条和固定条或两个旋转条限定的冲击部分中，并且其间具有0.5至10mm的间隙并机械冲击 二氧化硅细粉末在冲击部分分解凝聚物。

公开(公告)号：US4900647A

公开(公告)日：1990-02-13

申请号：US174895

申请日：1988-03-29

申请人： Norio Hikake ,  Hitoshi Kanda ,  Yoshihiko Hyosu

发明人： Norio Hikake ,  Hitoshi Kanda ,  Yoshihiko Hyosu

IPC分类号： G03G9/087 ,  G03G9/08

CPC分类号： G03G9/0815 ,  G03G9/0802 ,  G03G9/0817 ,  G03G9/0819 ,  G03G9/0827

摘要： A toner for producing electrostatic latent images is produced by smoothing classified resinous particles so that the ratio of the smallest diameter to the largest diameter thereof is 0.70-0.90, mixing the smoothed base particles (A) with modifier particles (B) to attach the modifier particles (B) to the surfaces of the base particles (A), and fixing the modifier particles (B) to the base particles (A) under the action of a mechanical impact force.

摘要翻译： 通过对分级的树脂颗粒进行平滑化，使最小直径与最大直径的比率为0.70-0.90，将平滑的基础颗粒（A）与改性剂颗粒（B）混合以将改性剂 颗粒（B）到基体颗粒（A）的表面，并且在机械冲击力的作用下将改性剂颗粒（B）固定到基础颗粒（A）上。

公开(公告)号：US4782001A

公开(公告)日：1988-11-01

申请号：US173046

申请日：1988-03-28

申请人： Hitoshi Kanda ,  Takeo Meguro

发明人： Hitoshi Kanda ,  Takeo Meguro

IPC分类号： B07B7/086 ,  G03G9/08 ,  B02C19/06 ,  G03G9/00

CPC分类号： G03G9/0817 ,  B07B7/0865

摘要： A process for producing toner particles for developing electrostatic latent images, comprising the steps of introducing colored solid particles containing a binder resin into a multi-division classifying zone divided into at least three sections by partitioning means, so that the particles are fallen along curved lines; collecting a coarse powder consisting primarily of coarse particles in a first divided section, a medium powder consisting primarily of particles having a particle size within a defined range in a second divided section and a fine powder consisting primarily of particles having a particle size smaller than the defined range in a third divided section; feeding the classified coarse powder to a pulverizing step; and introducing the pulverized powder into the multi-division classifying zone. An apparatus for practicing the process is also disclosed.

摘要翻译： 一种用于生产用于显影静电潜像的调色剂颗粒的方法，包括以下步骤：将含有粘合剂树脂的着色固体颗粒引入到通过分隔装置分成至少三个部分的多分级分级区域中，使得颗粒沿着曲线 ; 在第一分割部分中收集主要由粗颗粒组成的粗粉末，主要由在第二分割部分中具有在规定范围内的粒径的颗粒组成的中等粉末和主要由粒径小于 在第三个划分的部分中定义范围; 将分级粗粉进料到粉碎步骤; 并将粉碎的粉末引入多级分级区。 还公开了一种用于实施该方法的装置。

公开(公告)号：US5447275A

公开(公告)日：1995-09-05

申请号：US187385

申请日：1994-01-27

申请人： Yoko Goka ,  Hitoshi Kanda ,  Satoshi Mitsumura ,  Kazuyuki Miyano

发明人： Yoko Goka ,  Hitoshi Kanda ,  Satoshi Mitsumura ,  Kazuyuki Miyano

IPC分类号： B01F5/06 ,  B02C19/06 ,  B07B7/086 ,  B07B9/02 ,  B07B11/02 ,  B07B11/06 ,  G03G9/08 ,  B02C23/30

CPC分类号： G03G9/0817 ,  B01F5/0646 ,  B01F5/0647 ,  B02C19/066 ,  B07B11/02 ,  B07B11/06 ,  B07B7/0865 ,  B07B9/02

摘要： A gas stream classifier includes: a gas stream classifying means for classifying feed powder into at least a coarse powder fraction and a fine powder fraction by an inertia force acting on particles and a centrifugal force acting on a curved gas stream due to Coanda effect in a classifying chamber, and a feed supply pipe opening into the classifying chamber for supplying the feed powder into the classifying chamber. The efficiency of the classifier is improved by providing the feed supply pipe with a mixing zone for mixing an upper stream and a lower stream of the feed powder and an accompanying gas stream, respectively flowing through within the feed supply pipe. The classifier is particularly suitably used for producing a toner for developing electrostatic images having a sharp particle size distribution from toner particles having a weight-average particle size of at most 10 .mu.m, especially at most 8 .mu.m.

摘要翻译： 气流分级器包括：气流分级装置，用于将进料粉末分解成至少粗粉末部分和细粉末部分，其由作用在颗粒上的惯性力和作用在弯曲气流上的离心力由于Coanda效应而产生 分选室，以及通向分选室的进料供给管，用于将进料粉末供给到分级室。 通过为进料供给管提供混合进料粉末的上部流和下游的混合区以及分别在进料管内流动的伴随的气流，来提高分级器的效率。 分选机特别适用于生产调色剂，用于显影重均粒径至多为10μm，特别是最多8μm的调色剂颗粒具有尖锐的粒度分布的静电图像。

公开(公告)号：US5358183A

公开(公告)日：1994-10-25

申请号：US183253

申请日：1994-01-19

申请人： Hitoshi Kanda ,  Satoshi Mitsumura ,  Kazuhiko Omata

发明人： Hitoshi Kanda ,  Satoshi Mitsumura ,  Kazuhiko Omata

IPC分类号： B02C19/06 ,  G03G9/087

CPC分类号： B02C19/066

摘要： A pneumatic pulverizer includes an accelerating tube for conveying and accelerating a material to be pulverlized by a high-pressure gas and a pulverizing chamber for finely pulverizing the material to be pulverized. The pulverizing chamber is provided with a colliding member having a colliding surface provided in opposed relation to an outlet of the accelerating tube. The colliding surface of the colliding member has a protruding central portion, and an outer peripheral colliding surface provided around the protruding central portion for secondarily pulverizing the material primarily pulverized by the protruding central portion. The pulverizing chamber has a side wall for performing tertiary pulverization on the material secondarily pulverized by the outer peripheral colliding surface.

摘要翻译： 气动粉碎机包括用于输送和加速由高压气体粉碎的材料的加速管和用于粉碎被粉碎材料的粉碎室。 粉碎室设置有碰撞构件，该碰撞构件具有与加速管的出口相对设置的碰撞表面。 碰撞构件的碰撞面具有突出的中心部分和设置在突出中心部分周围的外周碰撞表面，用于二次粉碎由突出的中心部分主要粉碎的材料。 粉碎室具有用于在外周碰撞面二次粉碎的材料上进行三次粉碎的侧壁。

公开(公告)号：US5087546A

公开(公告)日：1992-02-11

申请号：US446447

申请日：1989-12-05

申请人： Hitoshi Kanda ,  Atsuko Kobayashi

发明人： Hitoshi Kanda ,  Atsuko Kobayashi

IPC分类号： G03G9/087 ,  B01F7/00 ,  B01F7/02 ,  B01F7/10 ,  B01F15/00 ,  G03G15/08

CPC分类号： B01F7/025 ,  B01F7/10 ,  G03G15/0822 ,  B01F15/00883

摘要： A continuous mixing device for mixing continuously powder, comprising a casing having a mixing chamber inside of the device, a rotary shaft included within said casing, a rotatable stirring blade axially supported with said rotary shaft, and a fixed blade fixed inside of said casing, wherein said stirring blades and fixed blades are provided in plural numbers. A process for producing a toner composition of developing electrostatic latent images, comprising introducing colored particles having at least a binder resin and a colorant, and a powdery additive into a continuous mixing device, said continuous mixing device comprising a casing having a mixing chamber inside of the device, a rotary shaft included within said casing, a rotatable stirring blade axially supported with said rotary shaft, and a fixed blade fixed inside of said casing, wherein said stirring blades and fixed blades are provided in plural numbers; and mixing the colored particles and the powdery additive to obtain a toner composition.

公开(公告)号：US4844349A

公开(公告)日：1989-07-04

申请号：US108681

申请日：1987-10-15

申请人： Hitoshi Kanda ,  Masayoshi Kato

发明人： Hitoshi Kanda ,  Masayoshi Kato

IPC分类号： B02C23/12 ,  B07B7/086 ,  B07B9/00 ,  G03G9/08 ,  G03G9/087

CPC分类号： G03G9/0817 ,  B07B7/0865

摘要： A toner for producing electrostatic latent images is produced by classifying a pulverized feed material into a coarse powder and a fine powder in a first classifying means, pulverizing and recycling the coarse powder to the first classifying means, introducing the fine powder into a multi-division classifying chamber divided into at least three sections where the fine powder is classified into at least a coarse powder fraction, a medium powder fraction and a fine powder fraction. The medium powder fraction is recovered to provide a toner. The coarse powder fraction is recycled to the first classifying means.