公开(公告)号：US20100081078A1

公开(公告)日：2010-04-01

申请号：US12571577

申请日：2009-10-01

Applicant: Hisashi Kurokawa ,  Rei Katsuyama ,  Fuminari Oyama ,  Hiroto Kidokoro

Inventor： Hisashi Kurokawa ,  Rei Katsuyama ,  Fuminari Oyama ,  Hiroto Kidokoro

IPC: G03G9/08

CPC classification number: G03G9/0804 ,  G03G9/0806

Abstract: The present invention is to provide a method for producing a toner capable of sufficiently decreasing the percentage of moisture content of a wet cake in the process of obtaining colored resin particles in wet state (wet cake), capable of reducing the workload in the following drying process, and thus excellent in productivity. A method for producing a toner comprising the steps of: a process of obtaining an aqueous dispersion of colored resin particles by forming colored resin particles by a wet method; a process of obtaining the colored resin particles in wet state (wet cake) by supplying the aqueous dispersion of the colored resin particles to a belt filter and performing solid-liquid separation; and a process of drying the wet cake, wherein a filter cloth continuous running type belt filter is used as the belt filter in the process of obtaining the wet cake, and the filter cloth continuous running type belt filter has a separation-washing mechanism, in which the aqueous dispersion of the colored resin particles is supplied on a lower filter cloth of the belt filter, the colored resin particles are separated followed by washing, and thus the wet cake is formed, and a pressure-ventilation mechanism, in which the wet cake is covered with an upper filter cloth, the wet cake, disposed between the upper and lower filter cloths, is ventilated while pressure is applied to the wet cake, and thus the wet cake having low percentage of moisture content is obtained.

Abstract translation: 本发明提供一种在湿润状态下获得有色树脂颗粒（湿滤饼）的过程中能够充分降低湿滤饼含水率的方法，能够降低下次干燥时的工作量 工艺，因此生产率优异。 一种调色剂的制造方法，包括以下步骤：通过湿法形成着色树脂颗粒得到着色树脂颗粒的水性分散体的方法; 通过将有色树脂颗粒的水性分散体供给到带式过滤器并进行固液分离，得到湿状态的着色树脂颗粒（湿滤饼）的工序; 以及干燥湿滤饼的过程，其中在获得湿滤饼的过程中使用滤布连续式带式过滤器作为带式过滤器，并且滤布连续式带式过滤器具有分离洗涤机构， 将着色树脂颗粒的水性分散体供给到带式过滤器的下部滤布上，着色树脂颗粒被分离，随后进行洗涤，从而形成湿饼，并且其中湿润的压力通风机构 蛋糕被上部滤布覆盖，设置在上部和下部滤布之间的湿滤饼在湿滤饼施加压力的同时通风，因此获得了低含水率的湿滤饼。

公开(公告)号：US08247154B2

公开(公告)日：2012-08-21

申请号：US12571577

申请日：2009-10-01

Applicant: Hisashi Kurokawa ,  Rei Katsuyama ,  Fuminari Oyama ,  Hiroto Kidokoro

Inventor： Hisashi Kurokawa ,  Rei Katsuyama ,  Fuminari Oyama ,  Hiroto Kidokoro

IPC: G03G5/00

CPC classification number: G03G9/0804 ,  G03G9/0806

Abstract: The present invention is to provide a method for producing a toner capable of sufficiently decreasing the percentage of moisture content of a wet cake in the process of obtaining colored resin particles in wet state (wet cake), capable of reducing the workload in the following drying process, and thus excellent in productivity. A method for producing a toner comprising the steps of: a process of obtaining an aqueous dispersion of colored resin particles by forming colored resin particles by a wet method; a process of obtaining the colored resin particles in wet state (wet cake) by supplying the aqueous dispersion of the colored resin particles to a belt filter and performing solid-liquid separation; and a process of drying the wet cake, wherein a filter cloth continuous running type belt filter is used as the belt filter in the process of obtaining the wet cake, and the filter cloth continuous running type belt filter has a separation-washing mechanism, in which the aqueous dispersion of the colored resin particles is supplied on a lower filter cloth of the belt filter, the colored resin particles are separated followed by washing, and thus the wet cake is formed, and a pressure-ventilation mechanism, in which the wet cake is covered with an upper filter cloth, the wet cake, disposed between the upper and lower filter cloths, is ventilated while pressure is applied to the wet cake, and thus the wet cake having low percentage of moisture content is obtained.

Abstract translation: 本发明提供一种在湿润状态下获得有色树脂颗粒（湿滤饼）的过程中能够充分降低湿滤饼含水率的方法，能够降低下次干燥时的工作量 工艺，因此生产率优异。 一种调色剂的制造方法，包括以下步骤：通过湿法形成着色树脂颗粒得到着色树脂颗粒的水性分散体的方法; 通过将有色树脂颗粒的水性分散体供给到带式过滤器并进行固液分离，得到湿状态的着色树脂颗粒（湿滤饼）的工序; 以及干燥湿滤饼的过程，其中在获得湿滤饼的过程中使用滤布连续式带式过滤器作为带式过滤器，并且滤布连续式带式过滤器具有分离洗涤机构， 将着色树脂颗粒的水性分散体供给到带式过滤器的下部滤布上，着色树脂颗粒被分离，随后进行洗涤，从而形成湿饼，并且其中湿润的压力通风机构 蛋糕被上部滤布覆盖，设置在上部和下部滤布之间的湿滤饼在湿滤饼施加压力的同时通风，因此获得了低含水率的湿滤饼。