公开(公告)号：US08216761B2

公开(公告)日：2012-07-10

申请号：US12671416

申请日：2008-10-08

Applicant: Wook Jang ,  Chang Soon Lee ,  Woo Cheul Jeong ,  Ji Hoon Lee

Inventor： Wook Jang ,  Chang Soon Lee ,  Woo Cheul Jeong ,  Ji Hoon Lee

IPC: G03G5/00

CPC classification number: G03G9/0806 ,  G03G9/08711 ,  G03G9/08722 ,  G03G9/09725

Abstract: Disclosed is a method for producing a polymerized toner. In the method, a mixture of colloidal silica as an aqueous dispersant and a polyvinylpyrrolidone is used during suspension polymerization. The amount of polyvinylpyrrolidone/colloidal silica aggregates having a diameter smaller than 100 nm is also limited to 1% by weight or less, based on the total weight of all aggregates. A polymerized toner produced by the method has a volume average particle diameter (dv) of 5 to 10 μm and a volume average particle diameter/number average particle diameter ratio (dv/dp) of 1.5 or less. The polymerized toner is consumed in a small amount during printing. According to the method, the formation of emulsion particles having a size smaller than 0.5 μm is inhibited.

Abstract translation: 公开了一种聚合调色剂的制造方法。 在该方法中，在悬浮聚合中使用作为水性分散剂的胶体二氧化硅与聚乙烯吡咯烷酮的混合物。 直径小于100nm的聚乙烯吡咯烷酮/胶体二氧化硅聚集体的量也以所有聚集体的总重量计为1重量％以下。 通过该方法制造的聚合调色剂的体积平均粒径（dv）为5〜10μm，体积平均粒径/数均粒径比（dv / dp）为1.5以下。 聚合调色剂在印刷过程中少量消耗。 根据该方法，抑制了尺寸小于0.5μm的乳液颗粒的形成。

公开(公告)号：US20100190103A1

公开(公告)日：2010-07-29

申请号：US12671416

申请日：2008-10-08

Applicant: Wook Jang ,  Chang Soon Lee ,  Woo Cheul Jeong ,  Ji Hoon Lee

Inventor： Wook Jang ,  Chang Soon Lee ,  Woo Cheul Jeong ,  Ji Hoon Lee

IPC: G03G9/00

CPC classification number: G03G9/0806 ,  G03G9/08711 ,  G03G9/08722 ,  G03G9/09725

Abstract: Disclosed is a method for producing a polymerized toner. In the method, a mixture of colloidal silica as an aqueous dispersant and a polyvinylpyrrolidone is used during suspension polymerization. The amount of polyvinylpyrrolidone/colloidal silica aggregates having a diameter smaller than 100 nm is also limited to 1% by weight or less, based on the total weight of all aggregates. A polymerized toner produced by the method has a volume average particle diameter (dv) of 5 to 10 μm and a volume average particle diameter/number average particle diameter ratio (dv/dp) of 1.5 or less. The polymerized toner is consumed in a small amount during printing. According to the method, the formation of emulsion particles having a size smaller than 0.5 μm is inhibited.

Abstract translation: 公开了一种聚合调色剂的制造方法。 在该方法中，在悬浮聚合中使用作为水性分散剂的胶体二氧化硅与聚乙烯吡咯烷酮的混合物。 直径小于100nm的聚乙烯吡咯烷酮/胶体二氧化硅聚集体的量也以所有聚集体的总重量计为1重量％以下。 通过该方法制造的聚合调色剂的体积平均粒径（dv）为5〜10μm，体积平均粒径/数均粒径比（dv / dp）为1.5以下。 聚合调色剂在印刷过程中少量消耗。 根据该方法，抑制了尺寸小于0.5μm的乳液颗粒的形成。

公开(公告)号：US08053157B2

公开(公告)日：2011-11-08

申请号：US12226218

申请日：2007-12-14

Applicant: Woo-Cheul Jung ,  Ji-Hoon Lee ,  Hui-Je Lee ,  Yu-Na Kim ,  Jung-Woo Kim ,  Chang Soon Lee

Inventor： Woo-Cheul Jung ,  Ji-Hoon Lee ,  Hui-Je Lee ,  Yu-Na Kim ,  Jung-Woo Kim ,  Chang Soon Lee

IPC: G03G9/093

CPC classification number: G03G9/09392 ,  G03G9/09321 ,  G03G9/09335 ,  G03G9/09364 ,  G03G9/09378 ,  G03G9/09385

Abstract: There is provided a toner having good charging characteristics that is composed of a core region and a thin shell in which a charge control agent is densely distributed so as to improve charging characteristics of the toner, and a method for manufacturing the same. The method for manufacturing a toner having a bi-layered structure includes: producing a toner core using a suspension polymerization method; preparing a suspension of toner particles having a core-shell structure by forming a rigid shell on a surface of the toner core; and recovering the toner particles from the suspension as a post-processing operation.

Abstract translation: 提供了具有良好的充电特性的调色剂，其由芯区域和薄壳体组成，其中电荷控制剂密集分布以改善调色剂的充电特性及其制造方法。 具有双层结构的调色剂的制造方法包括：使用悬浮聚合法制造调色剂芯; 通过在调色剂芯的表面上形成刚性壳来制备具有核 - 壳结构的调色剂颗粒的悬浮液; 并且作为后处理操作从悬浮液中回收调色剂颗粒。

公开(公告)号：US20090246673A1

公开(公告)日：2009-10-01

申请号：US12226218

申请日：2007-12-14

Applicant: Woo-Cheul Jung ,  Ji-Hoon Lee ,  Hui-Je Lee ,  Yu-Na Kim ,  Jung-Woo Kim ,  Chang Soon Lee

Inventor： Woo-Cheul Jung ,  Ji-Hoon Lee ,  Hui-Je Lee ,  Yu-Na Kim ,  Jung-Woo Kim ,  Chang Soon Lee

IPC: G03G9/08

CPC classification number: G03G9/09392 ,  G03G9/09321 ,  G03G9/09335 ,  G03G9/09364 ,  G03G9/09378 ,  G03G9/09385

Abstract: There is provided a toner having good charging characteristics that is composed of a core region and a thin shell in which a charge control agent is densely distributed so as to improve charging characteristics of the toner, and a method for manufacturing the same. The method for manufacturing a toner having a bi-layered structure includes: producing a toner core using a suspension polymerization method; preparing a suspension of toner particles having a core-shell structure by forming a rigid shell on a surface of the toner core; and recovering the toner particles from the suspension as a post-processing operation.

Abstract translation: 提供了具有良好的充电特性的调色剂，其由芯区域和薄壳体组成，其中电荷控制剂密集分布以改善调色剂的充电特性及其制造方法。 具有双层结构的调色剂的制造方法包括：使用悬浮聚合法制造调色剂芯; 通过在调色剂芯的表面上形成刚性壳来制备具有核 - 壳结构的调色剂颗粒的悬浮液; 并且作为后处理操作从悬浮液中回收调色剂颗粒。

公开(公告)号：US08394564B2

公开(公告)日：2013-03-12

申请号：US12611342

申请日：2009-11-03

Applicant: Wook Jang ,  Chang Soon Lee

Inventor： Wook Jang ,  Chang Soon Lee

IPC: G03G9/00

CPC classification number: G03G9/0872 ,  G03G9/0806 ,  G03G9/08704 ,  G03G9/08726 ,  G03G9/08728 ,  G03G9/08793 ,  G03G9/08797

Abstract: A polymerized toner is provided. The polymerized toner has cores containing polyvinylidene fluoride particles. The polyvinylidene fluoride particles have an average particle diameter of 1.1 to 1.5 μm and a melting temperature (Tm) of 140 to 160° C. The polyvinylidene fluoride particles are distributed at a higher concentration near the surface of the cores. This distribution improves the affinity of the cores for silica as an external additive to achieve an increased amount of surface charge and improved transfer efficiency of the polymerized toner. Further provided is a method of producing the polymerized toner.

Abstract translation: 提供聚合调色剂。 聚合的调色剂具有含有聚偏二氟乙烯颗粒的芯。 聚偏二氟乙烯粒子的平均粒径为1.1〜1.5μm，熔融温度（Tm）为140〜160℃。聚偏二氟乙烯粒子分布在芯的表面附近较高的浓度。 这种分布提高了二氧化硅作为外部添加剂的芯的亲和性，以实现增加的表面电荷量和改善聚合调色剂的转印效率。 还提供了生产聚合调色剂的方法。

公开(公告)号：US08216756B2

公开(公告)日：2012-07-10

申请号：US12621195

申请日：2009-11-18

Applicant: Wook Jang ,  Chang Soon Lee ,  Woo Cheul Jung

Inventor： Wook Jang ,  Chang Soon Lee ,  Woo Cheul Jung

IPC: G03G9/00

CPC classification number: G03G9/08782 ,  G03G9/0806 ,  G03G9/08708 ,  G03G9/08726 ,  G03G9/08737 ,  G03G9/08791 ,  G03G9/08793 ,  G03G9/08795 ,  G03G9/08797 ,  G03G9/0975 ,  G03G9/09783

Abstract: A polymerized toner is provided. The polymerized toner has cores containing a wax with a polydispersity of 1.05 to 1.1. The fixability of the polymerized toner is improved by the presence of the wax. Further provided is a method of producing the polymerized toner.

Abstract translation: 提供聚合调色剂。 聚合调色剂具有含有多分散性为1.05〜1.1的蜡的核。 通过蜡的存在可以改善聚合调色剂的定影性。 还提供了生产聚合调色剂的方法。

公开(公告)号：US20120164571A1

公开(公告)日：2012-06-28

申请号：US13408888

申请日：2012-02-29

Applicant: Dong Jin PARK ,  Chang Soon Lee ,  Wook Jang ,  Yu Na Kim ,  Jung Woo Kim

Inventor： Dong Jin PARK ,  Chang Soon Lee ,  Wook Jang ,  Yu Na Kim ,  Jung Woo Kim

IPC: G03G9/087

CPC classification number: G03G9/0806 ,  G03G9/08704 ,  G03G9/08706 ,  G03G9/08728 ,  G03G9/08786 ,  G03G9/08791

Abstract: A polymerized toner is provided. The polymerized toner comprises a reactive anionic surfactant having at least one reactive functional group. The reactive anionic surfactant is added simultaneously with a dispersant to prepare an aqueous dispersion or is added within 2 hour after a polymerization reaction of a monomer mixture is initiated in an aqueous dispersion. This simultaneous or rapid addition allows the reactive anionic surfactant to be dispersed on the surface of the toner particles. The reactive anionic surfactant is located over the entire surface of the toner particles to increase the surface charge density of the toner, achieving good charge stability and excellent imaging characteristics.

Abstract translation: 提供聚合调色剂。 聚合的调色剂包含具有至少一个反应性官能团的反应性阴离子表面活性剂。 将反应性阴离子表面活性剂与分散剂同时加入以制备水分散体，或者在单体混合物在水分散体中引发聚合反应后2小时内加入。 这种同时或快速的添加允许反应性阴离子表面活性剂分散在调色剂颗粒的表面上。 反应性阴离子表面活性剂位于调色剂颗粒的整个表面上，以增加调色剂的表面电荷密度，实现良好的电荷稳定性和优异的成像特性。

公开(公告)号：US08198000B2

公开(公告)日：2012-06-12

申请号：US12450889

申请日：2008-03-17

Applicant: Wook Jang ,  Chang Soon Lee

Inventor： Wook Jang ,  Chang Soon Lee

IPC: G03G9/08

CPC classification number: G03G9/0806 ,  G03G9/0819 ,  G03G9/08704 ,  G03G9/08708 ,  G03G9/08711 ,  G03G9/08755 ,  G03G9/08782 ,  G03G9/08793

Abstract: A method for producing a toner is provided. The method comprises the steps of (1) dispersing a water-soluble polyvinyl alcohol having a degree of polymerization of 1,500 to 2,500 and a degree of saponification of 75 to 98% in an aqueous medium to prepare an aqueous dispersion of the polyvinyl alcohol, (2) preparing a mixture of monomers, (3) mixing the aqueous dispersion with the monomer mixture, and (4) polymerizing the monomers.

Abstract translation: 提供了一种制造调色剂的方法。 该方法包括以下步骤：（1）在水性介质中分散聚合度为1,500〜2,500，皂化度为75〜98％的水溶性聚乙烯醇，制备聚乙烯醇的水分散体（ 2）制备单体混合物，（3）将水分散体与单体混合物混合，和（4）使单体聚合。

公开(公告)号：US20100104968A1

公开(公告)日：2010-04-29

申请号：US12588693

申请日：2009-10-23

Applicant: Dong Jin Park ,  Chang Soon Lee ,  Wook Jang ,  Yu Na Kim ,  Jung Woo Kim

Inventor： Dong Jin Park ,  Chang Soon Lee ,  Wook Jang ,  Yu Na Kim ,  Jung Woo Kim

IPC: G03G9/093 ,  G03G9/09 ,  G03G9/08 ,  G03G9/087

CPC classification number: G03G9/0806 ,  G03G9/08704 ,  G03G9/08706 ,  G03G9/08728 ,  G03G9/08786 ,  G03G9/08791

Abstract: A polymerized toner is provided. The polymerized toner comprises a reactive anionic surfactant having at least one reactive functional group. The reactive anionic surfactant is added simultaneously with a dispersant to prepare an aqueous dispersion or is added within 2 hour after a polymerization reaction of a monomer mixture is initiated in an aqueous dispersion. This simultaneous or rapid addition allows the reactive anionic surfactant to be dispersed on the surface of the toner particles. The reactive anionic surfactant is located over the entire surface of the toner particles to increase the surface charge density of the toner, achieving good charge stability and excellent imaging characteristics.

Abstract translation: 提供聚合调色剂。 聚合的调色剂包含具有至少一个反应性官能团的反应性阴离子表面活性剂。 将反应性阴离子表面活性剂与分散剂同时加入以制备水分散体，或者在单体混合物在水分散体中开始聚合反应后2小时内加入。 这种同时或快速的添加允许反应性阴离子表面活性剂分散在调色剂颗粒的表面上。 反应性阴离子表面活性剂位于调色剂颗粒的整个表面上，以增加调色剂的表面电荷密度，实现良好的电荷稳定性和优异的成像特性。

公开(公告)号：US20100047708A1

公开(公告)日：2010-02-25

申请号：US12450889

申请日：2008-03-17

Applicant: Wook Jang ,  Chang Soon Lee

Inventor： Wook Jang ,  Chang Soon Lee

IPC: G03G9/08

CPC classification number: G03G9/0806 ,  G03G9/0819 ,  G03G9/08704 ,  G03G9/08708 ,  G03G9/08711 ,  G03G9/08755 ,  G03G9/08782 ,  G03G9/08793

Abstract: A method for producing a toner is provided. The method comprises the steps of (1) dispersing a water-soluble polyvinyl alcohol having a degree of polymerization of 1,500 to 2,500 and a degree of saponification of 75 to 98% in an aqueous medium to prepare an aqueous dispersion of the polyvinyl alcohol, (2) preparing a mixture of monomers, (3) mixing the aqueous dispersion with the monomer mixture, and (4) polymerizing the monomers.

Abstract translation: 提供了一种制造调色剂的方法。 该方法包括以下步骤：（1）在水性介质中分散聚合度为1,500〜2,500，皂化度为75〜98％的水溶性聚乙烯醇，制备聚乙烯醇的水分散体（ 2）制备单体混合物，（3）将水分散体与单体混合物混合，和（4）使单体聚合。