公开(公告)号：US20080160434A1

公开(公告)日：2008-07-03

申请号：US11792827

申请日：2005-12-13

Applicant: Keita Sensui ,  Hiroto Kidokoro

Inventor： Keita Sensui ,  Hiroto Kidokoro

IPC: G03G13/14 ,  G03G9/09

CPC classification number: G03G9/09 ,  G03G9/0823

Abstract: The present invention provides a toner for developing an electrostatic latent image which is capable of obtaining sufficient image density and preventing transfer failure even in a state that a toner is likely to be deficient in charge amount or charge distribution such as when the consumption rate of toner is high or in the early stage of printing.A toner for developing an electrostatic latent image is a toner comprising a colored particle containing a colorant and a binder resin, wherein a work function X (eV) of the toner obtained in measuring work function and a gradient A (1/eV) of a normalized photoelectron yield with respect to an excitation energy calculated from a formula “normalized photoelectron yield/excitation energy” are in the ranges of 5.35 0, is disclosed.

Abstract translation: 本发明提供了一种用于显影静电潜像的调色剂，其能够获得足够的图像浓度并且即使在调色剂可能不充足的电荷量或电荷分布的状态下，例如当调色剂的消耗速率 是高或在打印的早期阶段。 用于显影静电潜像的调色剂是含有着色剂和粘合剂树脂的着色颗粒的调色剂，其中在测量功函数中获得的调色剂的功函数X（eV）和梯度A（1 / eV） 相对于由归一化光电子产生/激发能量计算的激发能量的归一化光电子产率在5.35 0的范围内。

公开(公告)号：US08394565B2

公开(公告)日：2013-03-12

申请号：US12294808

申请日：2007-03-30

Applicant: Keita Sensui

Inventor： Keita Sensui

IPC: G03G9/08 ,  G03G9/135

CPC classification number: G03G9/0827 ,  G03G9/08711 ,  G03G9/08722 ,  G03G9/08791 ,  G03G9/08795 ,  G03G9/08797 ,  G03G9/09 ,  G03G9/09708 ,  G03G9/09716 ,  G03G9/09725 ,  G03G9/09741 ,  G03G9/0975 ,  G03G9/09775

Abstract: A positively charged developer for development of electrostatic images, comprising positively charged toner particles and an external additive, wherein the positively charged toner particles are colored resin particles composed of aggregated and fusion-bonded particles of fine binder resin particles and fine colorant particles and having a shape factor SF-1 of 115 to 150 and a shape factor SF-2 of 110 to 140, and the external additive is an external additive containing positively charged inorganic particles subjected to a hydrophobization treatment with an amino group-containing compound, and a production process thereof.

Abstract translation: 一种用于显影静电图像的带正电荷的显影剂，包括带正电荷的调色剂颗粒和外部添加剂，其中带正电的调色剂颗粒是着色树脂颗粒，其由粘合剂树脂颗粒和细颗粒的聚集和熔合粘合颗粒组成，并具有 形状因子SF-1为115〜150，形状因子SF-2为110〜140，外部添加剂为含有含氨基化合物进行疏水化处理的带正电荷的无机粒子的外部添加剂， 过程。

公开(公告)号：US06939656B2

公开(公告)日：2005-09-06

申请号：US10631007

申请日：2003-07-31

Applicant: Katsutomo Tanaka ,  Makoto Watanabe ,  Keita Sensui

Inventor： Katsutomo Tanaka ,  Makoto Watanabe ,  Keita Sensui

IPC: B01D3/00 ,  B01D19/04 ,  B01J13/14 ,  G03G9/08 ,  G03G9/087 ,  G03G9/093

CPC classification number: G03G9/0815 ,  G03G9/0806 ,  G03G9/09392

Abstract: Methods for producing a polymerized toners are provided, where, a dispersion including colored polymer particles obtained by polymerizing a polymerizable composition is treated stably in the process of reducing the remaining monomer, the resultant polymerized toners include a sufficiently low content of remaining monomer, and the resultant polymerized toners have excellent properties and are useful as developers for printing and copying. In the process of reducing the remaining monomer, the dispersion of the colored polymer particles is treated by stripping in the presence of a specific antifoaming agent.

Abstract translation: 提供聚合调色剂的制备方法，其中通过在可还原剩余单体的过程中稳定地处理包含通过聚合可聚合组合物获得的着色聚合物颗粒的分散体，所得聚合调色剂包括足够低的剩余单体含量， 得到的聚合调色剂具有优异的性能，并且作为印刷和复印的显影剂是有用的。 在还原剩余单体的过程中，着色聚合物颗粒的分散体在特定消泡剂的存在下通过汽提处理。

公开(公告)号：US08962232B2

公开(公告)日：2015-02-24

申请号：US12744003

申请日：2008-11-11

Applicant: Keita Sensui

Inventor： Keita Sensui

IPC: G03G9/08

CPC classification number: G03G9/0806

Abstract: A production process of a polymerized toner composed of polymer particles, including a step of polymerizing a polymerizable monomer composition containing a colorant and a polymerizable monomer in the presence of a polymerization initiator in an aqueous dispersion medium, wherein, in a stripping treatment step, the dispersion containing the polymer particles is introduced into an evaporator to conduct the stripping treatment by a method, in which a gas is blown into the dispersion within the evaporator to discharge volatile organic components including an unreacted polymerizable monomer out of the evaporator concomitantly with the gas, and both inert gas and saturated steam are used as the gas blown into the dispersion.

Abstract translation: 由聚合物颗粒构成的聚合调色剂的制造方法，包括在聚合引发剂的存在下，在水性分散介质中聚合含有着色剂的可聚合单体组合物和可聚合单体的步骤，其中在剥离处理步骤中， 将含有聚合物颗粒的分散体引入蒸发器中以通过将气体吹入蒸发器内的分散体中的方法进行汽提处理，以将包含未反应的可聚合单体的挥发性有机组分排出蒸发器并伴随气体， 并且使用惰性气体和饱和蒸汽两者作为吹入分散体中的气体。

公开(公告)号：US20100248132A1

公开(公告)日：2010-09-30

申请号：US12744003

申请日：2008-11-11

Applicant: Keita Sensui

Inventor： Keita Sensui

IPC: G03G9/08

CPC classification number: G03G9/0806

Abstract: A production process of a polymerized toner composed of polymer particles, including a step of polymerizing a polymerizable monomer composition containing a colorant and a polymerizable monomer in the presence of a polymerization initiator in an aqueous dispersion medium, wherein, in a stripping treatment step, the dispersion containing the polymer particles is introduced into an evaporator to conduct the stripping treatment by a method, in which a gas is blown into the dispersion within the evaporator to discharge volatile organic components including an unreacted polymerizable monomer out of the evaporator concomitantly with the gas, and both inert gas and saturated steam are used as the gas blown into the dispersion.

Abstract translation: 由聚合物颗粒构成的聚合调色剂的制造方法，包括在聚合引发剂的存在下，在水性分散介质中聚合含有着色剂的可聚合单体组合物和可聚合单体的步骤，其中在剥离处理步骤中， 将含有聚合物颗粒的分散体引入蒸发器中以通过将气体吹入蒸发器内的分散体中的方法进行汽提处理，以将包含未反应的可聚合单体的挥发性有机组分排出蒸发器并伴随气体， 并且使用惰性气体和饱和蒸汽两者作为吹入分散体中的气体。

公开(公告)号：US08173345B2

公开(公告)日：2012-05-08

申请号：US11996140

申请日：2006-07-13

Applicant: Keita Sensui

Inventor： Keita Sensui

IPC: G03G9/08

CPC classification number: G03G9/0806 ,  C08K5/0041 ,  G03G9/0819 ,  G03G9/0821 ,  G03G9/0827 ,  G03G9/08728 ,  C08L25/14 ,  C08F212/08 ,  C08F212/36 ,  C08F2220/1825

Abstract: [PROBLEMS] To provide a toner superior in shelf stability, not giving off an offensive odor and degrading the surrounding environment when used for printing, and superior in durability at the time of use for continuous printing under high temperature, high humidity conditions.[MEANS FOR SOLVING PROBLEMS] A process of production of a toner containing colored polymer particles obtained by polymerizing a polymerizable monomer composition containing a polymerizable monomer and colorant in an aqueous medium in the presence of a polymerization initiator, wherein the polymerization initiator is an organic peroxide having a molecular weight of 205 or less, and a purity of 90% or more.

Abstract translation: [问题]为了提供优异的贮存稳定性的调色剂，在用于印刷时不会产生令人厌恶的气味和降解周围环境，并且在高温，高湿度条件下连续印刷时使用时的耐久性优异。 解决问题的手段制造含有着色聚合物颗粒的调色剂的方法，所述着色聚合物颗粒通过在聚合引发剂的存在下在水性介质中聚合含有可聚合单体和着色剂的可聚合单体组合物而获得，其中聚合引发剂是有机过氧化物 分子量为205以下，纯度为90％以上。

公开(公告)号：US07611814B2

公开(公告)日：2009-11-03

申请号：US11236554

申请日：2005-09-28

Applicant: Keita Sensui

Inventor： Keita Sensui

IPC: G03G9/093

CPC classification number: G03G9/08795 ,  G03G9/0806 ,  G03G9/0821 ,  G03G9/08711 ,  G03G9/08722 ,  G03G9/08724 ,  G03G9/08782 ,  G03G9/08797

Abstract: An object of the present invention is to provide a polymerized toner which has low-temperature fixing ability and is not likely to leak the toner from a developing cartridge, especially, when the toner is used for a high-speed image-forming device.A polymerized toner produced by polymerizing a polymerizable monomer composition comprising a polymerizable monomer, a colorant and a release agent in an aqueous medium is used, wherein:(1) the release agent is an ester compound;(2) the release agent is in the content from 1 part by weight or more to 9 parts by weight or less per 100 parts by weight of a monovinyl monomer in the polymerizable monomer;(3) a maximum endothermic peak temperature in a DSC curve of the release agent is in the range from 55° C. or more to 90° C. or less; and(4) a melt index value of the polymerized toner at 150° C. under load of 98 N (10 kgf) is in the range from 1 g/10 min or more to 30 g/10 min or less.

Abstract translation: 本发明的目的是提供一种具有低温定影能力并且不可能从显影盒泄漏调色剂的聚合调色剂，特别是当调色剂用于高速成像装置时。 使用通过在水性介质中聚合包含可聚合单体，着色剂和脱模剂的可聚合单体组合物而制备的聚合调色剂，其中：（1）脱模剂是酯化合物; （2）脱模剂的含量为每100重量份可聚合单体中的单乙烯基单体1重量份或更多至9重量份或更少; （3）脱模剂的DSC曲线中的最大吸热峰温度在55℃以上至90℃以下的范围内; 和（4）聚合调色剂在98℃（10kgf）​​的负载下在150℃下的熔体指数值在1g / 10分钟以上至30g / 10分钟以下的范围内。

公开(公告)号：US20070048645A1

公开(公告)日：2007-03-01

申请号：US11511334

申请日：2006-08-29

Applicant: Junichi Takashima ,  Takashi Iga ,  Keita Sensui

Inventor： Junichi Takashima ,  Takashi Iga ,  Keita Sensui

IPC: G03G9/087

CPC classification number: G03G9/0806 ,  G03G9/08706 ,  G03G9/08708 ,  G03G9/08711 ,  G03G9/08713 ,  G03G9/08715 ,  G03G9/08717 ,  G03G9/0872 ,  G03G9/08722 ,  G03G9/08724 ,  G03G9/08726 ,  G03G9/08728 ,  G03G9/08731

Abstract: A method for producing a polymerized toner comprising a step of polymerizing a polymerizable monomer composition in an aqueous dispersion medium in the presence of a polymerization initiator to obtain a dispersion liquid of colored polymer particles and a stripping step of injecting a gas comprised of air or an inert gas into the dispersion liquid of the colored polymer particles while stirring the dispersion liquid in an evaporator and the flow rate of the gas injected per weight of the colored polymer particles being 0.05 to 4 L/(hr·kg), the pressure of the vapor phase of the evaporator being 5 to 80 kPa.

Abstract translation: 一种聚合调色剂的制造方法，其特征在于，在聚合引发剂的存在下，在水分散介质中使聚合性单体组合物聚合，得到着色聚合物粒子的分散液，并且将由空气或 惰性气体在着色聚合物颗粒的分散液中搅拌，同时在蒸发器中搅拌分散液，并且每重量着色聚合物颗粒注入的气体流速为0.05-4L /（hr.kg），压力为 蒸发器的蒸气相为5〜80kPa。

公开(公告)号：US07709176B2

公开(公告)日：2010-05-04

申请号：US11511334

申请日：2006-08-29

Applicant: Junichi Takashima ,  Takashi Iga ,  Keita Sensui

Inventor： Junichi Takashima ,  Takashi Iga ,  Keita Sensui

IPC: G03G9/08

CPC classification number: G03G9/0806 ,  G03G9/08706 ,  G03G9/08708 ,  G03G9/08711 ,  G03G9/08713 ,  G03G9/08715 ,  G03G9/08717 ,  G03G9/0872 ,  G03G9/08722 ,  G03G9/08724 ,  G03G9/08726 ,  G03G9/08728 ,  G03G9/08731

Abstract: A method for producing a polymerized toner comprising a step of polymerizing a polymerizable monomer composition in an aqueous dispersion medium in the presence of a polymerization initiator to obtain a dispersion liquid of colored polymer particles and a stripping step of injecting a gas comprised of air or an inert gas into the dispersion liquid of the colored polymer particles while stirring the dispersion liquid in an evaporator and the flow rate of the gas injected per weight of the colored polymer particles being 0.05 to 4 L/(hr·kg), the pressure of the vapor phase of the evaporator being 5 to 80 kPa.

Abstract translation: 一种聚合调色剂的制造方法，其特征在于，在聚合引发剂的存在下，在水分散介质中使聚合性单体组合物聚合，得到着色聚合物粒子的分散液，并且将由空气或 在蒸发器中搅拌分散液的同时将惰性气体加入到着色聚合物颗粒的分散液中，并且每重量着色聚合物颗粒注入的气体流速为0.05〜4L /（hr·kg），压力为 蒸发器的蒸气相为5〜80kPa。

公开(公告)号：US20060073402A1

公开(公告)日：2006-04-06

申请号：US11236554

申请日：2005-09-28

Applicant: Keita Sensui

Inventor： Keita Sensui

IPC: G03G9/08

CPC classification number: G03G9/08795 ,  G03G9/0806 ,  G03G9/0821 ,  G03G9/08711 ,  G03G9/08722 ,  G03G9/08724 ,  G03G9/08782 ,  G03G9/08797

Abstract: An object of the present invention is to provide a polymerized toner which has low-temperature fixing ability and is not likely to leak the toner from a developing cartridge, especially, when the toner is used for a high-speed image-forming device. A polymerized toner produced by polymerizing a polymerizable monomer composition comprising a polymerizable monomer, a colorant and a release agent in an aqueous medium is used, wherein: (1) the release agent is an ester compound; (2) the release agent is in the content from 1 part by weight or more to 9 parts by weight or less per 100 parts by weight of a monovinyl monomer in the polymerizable monomer; (3) a maximum endothermic peak temperature in a DSC curve of the release agent is in the range from 55° C. or more to 90° C. or less; and (4) a melt index value of the polymerized toner at 150° C. under load of 98 N (10 kgf) is in the range from 1 g/10 min or more to 30 g/10 min or less.

Abstract translation: 本发明的目的是提供一种具有低温定影能力并且不可能从显影盒泄漏调色剂的聚合调色剂，特别是当调色剂用于高速成像装置时。 使用通过在水性介质中聚合包含可聚合单体，着色剂和脱模剂的可聚合单体组合物而制备的聚合调色剂，其中：（1）脱模剂是酯化合物; （2）脱模剂的含量为每100重量份可聚合单体中的单乙烯基单体1重量份或更多至9重量份或更少; （3）脱模剂的DSC曲线中的最大吸热峰温度在55℃以上至90℃以下的范围内; 和（4）聚合调色剂在98℃（10kgf）​​的负载下在150℃下的熔体指数值在1g / 10分钟以上至30g / 10分钟以下的范围内。