公开(公告)号：US20120264050A1

公开(公告)日：2012-10-18

申请号：US13445459

申请日：2012-04-12

Applicant: Tomomi OSHIBA ,  Hitomi MOTANI ,  Tomoko MINE ,  Saburou HIRAOKA ,  Mikihiko SUKENO ,  Tatsuya NAGASE ,  Ken OHMURA

Inventor： Tomomi OSHIBA ,  Hitomi MOTANI ,  Tomoko MINE ,  Saburou HIRAOKA ,  Mikihiko SUKENO ,  Tatsuya NAGASE ,  Ken OHMURA

IPC: G03G9/087 ,  G03G9/09

CPC classification number: G03G9/0806 ,  G03G9/0804 ,  G03G9/0904

Abstract: Disclosed is a production process of a toner for electrostatic image development, by which excellent toner particle size-controlling ability is achieved, and moreover the sharpening of a particle size distribution is achieved.The production process is a production process of a toner for electrostatic image development, is composed of toner particles containing a binder resin. The process has the steps of adding a aggregating agent containing polysilicato-iron into an aqueous medium in which fine binder resin particles formed of the binder resin have been dispersed, thereby aggregating the fine binder resin particles, and adding an aggregation stopper composed of a salt whose cation is univalent or bivalent.

Abstract translation: 公开了用于静电图像显影的调色剂的制备方法，由此实现了优异的调色剂粒度控制能力，并且还实现了粒度分布的锐化。 制造方法是用于静电图像显影的调色剂的制造方法，由含有粘合剂树脂的调色剂颗粒构成。 该方法具有以下步骤：将含有聚硅酸铁的聚集剂添加到由粘合剂树脂形成的细粘合剂树脂颗粒已经分散的水性介质中，从而聚集细粘合剂树脂颗粒，并加入由盐组成的聚集塞 其阳离子是一价或二价的。

公开(公告)号：US20130189612A1

公开(公告)日：2013-07-25

申请号：US13727980

申请日：2012-12-27

Applicant: Hitomi MOTANI ,  Tomoko MINE ,  Tomomi OSHIBA

Inventor： Hitomi MOTANI ,  Tomoko MINE ,  Tomomi OSHIBA

IPC: G03G9/08

CPC classification number: G03G9/08 ,  G03G9/107 ,  G03G9/113 ,  G03G9/1133

Abstract: The present invention relates to a two-component developer which comprises a toner, and a carrier having a surface of a core material particle coated with a resin having a unit of general formula (1). The present invention provides a two-component developer which has enhanced environmental stability of carrier charging performance.

Abstract translation: 本发明涉及包含调色剂的双组分显影剂和具有用具有通式（1）单元的树脂涂覆的芯材颗粒的表面的载体。 本发明提供了具有增强载体充电性能的环境稳定性的双组分显影剂。

公开(公告)号：US20120328980A1

公开(公告)日：2012-12-27

申请号：US13525579

申请日：2012-06-18

Applicant: Saburou HIRAOKA ,  Tomomi OSHIBA ,  Mikihiko SUKENO ,  Tomoko MINE ,  Hitomi MOTANI ,  Tatsuya NAGASE ,  Ken OHMURA

Inventor： Saburou HIRAOKA ,  Tomomi OSHIBA ,  Mikihiko SUKENO ,  Tomoko MINE ,  Hitomi MOTANI ,  Tatsuya NAGASE ,  Ken OHMURA

IPC: G03G9/087 ,  B82Y30/00 ,  B82Y40/00

CPC classification number: G03G9/0804 ,  G03G9/0819 ,  Y10T137/0318 ,  Y10T137/0391

Abstract: The toner for electrostatic image development has excellent charge properties, by which excellent toner particle size-controlling ability is achieved, and moreover the sharpening of a particle size distribution is achieved. The toner is composed of toner particles containing a binder resin. The process has an aggregating step of adding an aggregating agent containing a transition element into an aqueous medium of dispersed fine binder resin particles to aggregate the fine binder resin particles, and an aggregation-stopping step of adding an aggregation stopper composed on a sulfur atom-containing compound exhibiting a reducing action on the aggregating agent. The aggregating agent is a salt of a bivalent or higher metal selected from Sr, Ti, V, Cr, Mn, Fe, Co, Ni and Cu.

Abstract translation: 用于静电图像显影的调色剂具有优异的充电性能，通过该调色剂实现优异的调色剂粒度控制能力，并且还实现了粒度分布的锐化。 调色剂由含有粘合剂树脂的调色剂颗粒组成。 该方法具有将含有过渡元素的聚集剂添加到分散的细粘合剂树脂颗粒的水性介质中以聚集细粘合剂树脂颗粒的聚集步骤，以及聚集停止步骤， 对聚集剂具有还原作用的含氟化合物。 聚集剂是选自Sr，Ti，V，Cr，Mn，Fe，Co，Ni和Cu中的二价或更高级金属的盐。

公开(公告)号：US20120225379A1

公开(公告)日：2012-09-06

申请号：US13406987

申请日：2012-02-28

Applicant: Tomoko MINE ,  Mikihiko SUKENO ,  Tatsuya NAGASE ,  Tomomi OSHIBA ,  Hiroyuki KOZURU ,  Saburou HIRAOKA ,  Yoshiyasu MATSUMOTO ,  Kosuke NAKAMURA ,  Hitomi MOTANI ,  Takanari KAYAMORI

Inventor： Tomoko MINE ,  Mikihiko SUKENO ,  Tatsuya NAGASE ,  Tomomi OSHIBA ,  Hiroyuki KOZURU ,  Saburou HIRAOKA ,  Yoshiyasu MATSUMOTO ,  Kosuke NAKAMURA ,  Hitomi MOTANI ,  Takanari KAYAMORI

IPC: G03G9/113

CPC classification number: G03G9/1133 ,  G03G9/1138 ,  G03G9/1139

Abstract: A two-component developer is disclosed, composing a toner comprising parent toner particles with an attached external additive and a carrier provided with a resin covering layer on a surface of a core particle, wherein the resin covering layer comprises a binder resin comprising an acrylic resin and when the resin covering layer is divided in half to a core particle side and a surface side, a nitrogen element content of the core particle side is larger than a nitrogen element content of the surface side.

Abstract translation: 公开了一种双组分显影剂，其包括具有附着的外部添加剂的母体调色剂颗粒和在芯颗粒的表面上设置有树脂覆盖层的载体的调色剂，其中所述树脂覆盖层包含粘合剂树脂，其包含丙烯酸树脂 并且当树脂被覆层被分成一半到芯粒子侧和表面侧时，核心粒子侧的氮元素含量​​大于表面侧的氮元素含量​​。

公开(公告)号：US20120270149A1

公开(公告)日：2012-10-25

申请号：US13449405

申请日：2012-04-18

Applicant: Tomoko MINE ,  Saburou HIRAOKA ,  Tomomi OSHIBA ,  Tatsuya NAGASE

Inventor： Tomoko MINE ,  Saburou HIRAOKA ,  Tomomi OSHIBA ,  Tatsuya NAGASE

IPC: G03G9/087

CPC classification number: G03G9/0806 ,  G03G9/0819 ,  G03G9/0827

Abstract: Disclosed is a production process of a toner for electrostatic image development, by which excellent toner particle size-controlling ability and moreover the sharpening of a particle size distribution are achieved.The production process is a production process of a toner for electrostatic image development, which is composed of toner particles containing at least a binder resin. The process has an aggregating and fusion-bonding step of adding a aggregating agent containing polysilicato-iron into an aqueous medium in which fine binder resin particles formed of the binder resin have been dispersed, thereby aggregating the fine binder resin particles, and an aggregation stopper-adding step of adding an aggregation stopper composed of a polyvalent organic acid or a salt thereof. In the production process of the toner for electrostatic image development, the polyvalent organic acid or the salt thereof is preferably an amino acid or a salt thereof.

Abstract translation: 公开了用于静电图像显影的调色剂的制备方法，通过该方法可获得优异的调色剂粒度控制能力以及进一步提高粒度分布的锐化。 制造方法是静电图像显影用调色剂的制造方法，其由至少含有粘结剂树脂的调色剂颗粒构成。 该方法具有将含有聚硅酸铁的凝集剂添加到其中由粘合剂树脂形成的细粘合剂树脂颗粒已经分散的水性介质中的聚集和熔合步骤，从而聚集细粘合剂树脂颗粒和聚集塞 添加由多价有机酸或其盐组成的聚集塞子的添加步骤。 在静电图像显影用调色剂的制造方法中，多价有机酸或其盐优选为氨基酸或其盐。

公开(公告)号：US20120107741A1

公开(公告)日：2012-05-03

申请号：US13281935

申请日：2011-10-26

Applicant: Saburou HIRAOKA ,  Mikihiko SUKENO ,  Hajime TADOKORO ,  Ken OHMURA ,  Tatsuya NAGASE ,  Tomomi OSHIBA ,  Kenji HAYASHI ,  Tomoko MINE

Inventor： Saburou HIRAOKA ,  Mikihiko SUKENO ,  Hajime TADOKORO ,  Ken OHMURA ,  Tatsuya NAGASE ,  Tomomi OSHIBA ,  Kenji HAYASHI ,  Tomoko MINE

IPC: G03G9/087

CPC classification number: G03G9/08793 ,  G03G9/0806 ,  G03G9/0821 ,  G03G9/08755 ,  G03G9/08795 ,  G03G9/08797 ,  G03G9/09328 ,  G03G9/09371

Abstract: Provided is a method of manufacturing toner by which the toner capable of forming high quality images and reproducing high density gradation, which exhibits an excellent high-temperature offsetting property together with excellent low-temperature fixability, and provides appropriate gloss with respect to images to be formed, can be stably prepared; and also provided is the toner. After conducting a step in which particles made of at least a crystalline polyester resin are coagulated to form core coagulated particles, and an unsaturated amorphous polyester resin particle is attached onto the surface of each of the core coagulated particles to form core-shell type coagulated particles, radical polymerization reaction is conducted by acting a radical polymerization initiator on the foregoing core-shell type coagulated particles to conduct a step in which a layer made of a crosslinking amorphous polyester resin is formed on the surface of each of the core coagulated particles.

Abstract translation: 提供一种制造调色剂的方法，通过该调色剂能够形成高质量图像并再现高密度等级的调色剂，其具有优异的高温抵消性能以及优异的低温定影性，并且对于图像提供适当的光泽度 形成，可以稳定准备; 并且还提供了调色剂。 在进行由至少结晶性聚酯树脂制成的粒子凝固形成铁心凝固粒子的工序后，在各凝固粒子的表面上附着不饱和非晶质聚酯树脂粒子，形成核壳型凝固粒子 通过在上述核 - 壳型凝结粒子上进行自由基聚合引发剂进行自由基聚合反应，进行在每个芯凝固粒子的表面上形成由交联性无定形聚酯树脂构成的层的工序。

公开(公告)号：US20120100478A1

公开(公告)日：2012-04-26

申请号：US13272558

申请日：2011-10-13

Applicant: Mikihiko SUKENO ,  Hajime TADOKORO ,  Ken OHMURA ,  Tatsuya NAGASE ,  Tomomi OSHIBA ,  Kenji HAYASHI ,  Saburou HIRAOKA ,  Tomoko MINE

Inventor： Mikihiko SUKENO ,  Hajime TADOKORO ,  Ken OHMURA ,  Tatsuya NAGASE ,  Tomomi OSHIBA ,  Kenji HAYASHI ,  Saburou HIRAOKA ,  Tomoko MINE

IPC: G03G9/08

CPC classification number: G03G9/08755 ,  G03G9/0806 ,  G03G9/08793 ,  G03G9/08797 ,  G03G9/09321 ,  G03G9/09328 ,  G03G9/09371 ,  G03G9/09392

Abstract: A method of producing an electrostatic image developing toner comprising toner particles comprising a binder resin containing at least a non-crystalline polyester resin having a crosslinking structure and a crystalline polyester resin, the method comprising the steps of (a-1) preparing a crystalline polyester resin particle aqueous dispersion liquid; (a-2) preparing a polymerizable unsaturated non-crystalline polyester resin aqueous dispersion liquid; (b) preparing crosslinking non-crystalline polyester resin particles by adding a radical polymerization initiator to the aqueous dispersion liquid of particles containing the non-crystalline polyester resin having a polymerizable unsaturated bond; (c) preparing core particles by aggregating at least the particles containing the crystalline polyester resin in an aqueous medium; and (d) preparing a shell layer containing the non-crystalline polyester resin having a crosslinking structure by fusing the particles containing the non-crystalline polyester resin having a crosslinking structure on surfaces of the core particles in an aqueous medium.

Abstract translation: 一种静电图像显影调色剂的制造方法，其包含调色剂颗粒，所述调色剂颗粒包含至少含有具有交联结构的非结晶性聚酯树脂和结晶性聚酯树脂的粘合剂树脂，所述方法包括以下步骤：（a-1）制备结晶聚酯 树脂颗粒水分散液; （a-2）制备聚合性不饱和非结晶性聚酯树脂水性分散液; （b）通过向包含具有聚合性不饱和键的非结晶性聚酯树脂的粒子的水性分散液中添加自由基聚合引发剂来制备交联的非结晶性聚酯树脂粒子; （c）通过在水性介质中至少聚集含有结晶性聚酯树脂的颗粒来制备芯颗粒; 和（d）通过在水性介质中将含有具有交联结构的非结晶性聚酯树脂的颗粒在芯颗粒的表面上熔融来制备含有具有交联结构的非结晶性聚酯树脂的壳层。

公开(公告)号：US20120094229A1

公开(公告)日：2012-04-19

申请号：US13271477

申请日：2011-10-12

Applicant: Tomoko MINE ,  Mikihiko SUKENO ,  Hajime TADOKORO ,  Ken OHMURA ,  Tatsuya NAGASE ,  Tomomi OSHIBA ,  Saburou HIRAOKA

Inventor： Tomoko MINE ,  Mikihiko SUKENO ,  Hajime TADOKORO ,  Ken OHMURA ,  Tatsuya NAGASE ,  Tomomi OSHIBA ,  Saburou HIRAOKA

IPC: G03G9/087 ,  G03G9/093 ,  B82Y40/00

CPC classification number: G03G9/08755 ,  G03G9/08711 ,  G03G9/08793 ,  G03G9/08795 ,  G03G9/08797 ,  G03G9/09321 ,  G03G9/09328 ,  G03G9/09364 ,  G03G9/09371

Abstract: A toner comprising toner particles containing a binder resin comprising a crystalline polyester resin, a non-crystalline polyester resin and an acryl resin having a cross-link structure, and the acryl resin having a cross-link structure has a cross-link site derived from a crosslinking agent represented by the following formula (1): CH2═CR1—C(═O)O—Z—OC(═O)—CR2═CH2  Formula (1) wherein R1 and R2 are each a hydrogen atom or an alkyl group of 1 to 3 carbon atoms, and Z is a hydrocarbon group of 2 to 90 carbon atoms, provided that the hydrocarbon group may include an ether linkage, an ester linkage, a heterocyclic ring or a substituent.

Abstract translation: 包含含有结晶聚酯树脂，非结晶聚酯树脂和具有交联结构的丙烯酸树脂的粘合剂树脂的调色剂颗粒的调色剂和具有交联结构的丙烯酸树脂具有衍生自 由下式（1）表示的交联剂：CH2 = CR1-C（= O）O-Z-OC（= O）-CR2 = CH2式（1）其中R1和R2各自为氢原子或烷基 1〜3个碳原子的基团，Z为2〜90个碳原子的烃基，条件是烃基可以包括醚键，酯键，杂环或取代基。

公开(公告)号：US20120064454A1

公开(公告)日：2012-03-15

申请号：US13228030

申请日：2011-09-08

Applicant: Tomomi OSHIBA ,  Mikihiko SUKENO ,  Hajime TADOKORO ,  Ken OHMURA ,  Tatsuya NAGASE ,  Kenji HAYASHI ,  Saburou HIRAOKA ,  Tomoko MINE

Inventor： Tomomi OSHIBA ,  Mikihiko SUKENO ,  Hajime TADOKORO ,  Ken OHMURA ,  Tatsuya NAGASE ,  Kenji HAYASHI ,  Saburou HIRAOKA ,  Tomoko MINE

IPC: G03G9/08

CPC classification number: G03G9/0806 ,  G03G9/08755 ,  G03G9/08793 ,  G03G9/08795 ,  G03G9/08797

Abstract: A method of producing a toner comprising toner particles containing a binder resin composed of a non-crystalline polyester resin having a crosslinking structure and a crystalline polyester resin is disclosed, the method comparing steps of; a process to form an oil phase liquid by dissolving or dispersing a non-crystalline polyester resin having a polymerizable unsaturated double bond and a crystalline polyester resin in an organic solvent, a process to form an aqueous dispersion liquid of oil droplets of the oil phase liquid by dispersing the oil phase liquid in an aqueous medium, a process to form oil droplets containing the non-crystalline polyester resin having a crosslinking structure by adding a radical polymerization initiator to the aqueous dispersion liquid of oil droplets, and an organic solvent removing process to form toner particles by removing organic solvent.

Abstract translation: 公开了一种生产调色剂的方法，其包含含有由具有交联结构的非结晶性聚酯树脂和结晶性聚酯树脂构成的粘合剂树脂的调色剂颗粒，所述方法比较步骤; 通过将具有聚合性不饱和双键的非结晶性聚酯树脂和结晶性聚酯树脂溶解或分散在有机溶剂中来形成油相液体的方法，形成油相液体油滴的水性分散液的方法 通过将油相液体分散在水性介质中，通过向油滴的水性分散液中添加自由基聚合引发剂，形成含有具有交联结构的非结晶性聚酯树脂的油滴的工序，以及有机溶剂除去工序 通过除去有机溶剂形成调色剂颗粒。

公开(公告)号：US20100279223A1

公开(公告)日：2010-11-04

申请号：US12769026

申请日：2010-04-28

Applicant: Mikihiko SUKENO ,  Yasuko UCHINO ,  Tomomi OSHIBA ,  Nagayuki UEDA ,  Makoto KOBAYASHI ,  Ken OHMURA

Inventor： Mikihiko SUKENO ,  Yasuko UCHINO ,  Tomomi OSHIBA ,  Nagayuki UEDA ,  Makoto KOBAYASHI ,  Ken OHMURA

IPC: G03G9/087 ,  G03G5/00

CPC classification number: G03G9/08795 ,  G03G9/0827 ,  G03G9/08755 ,  G03G9/08797 ,  G03G9/09328 ,  G03G9/09371 ,  G03G9/09392

Abstract: Disclosed is a toner including: a toner particle including at least a resin, a coloring agent and a mold release agent, wherein an average value e of degree of circularity of the toner particle is within 0.935=e=0.982, a maximum endothermic peak temperature of the mold release agent exists within 85-98° C., the resin includes at least non-crystalline polyester and crystalline polyester, and a ratio a of multivalent carboxylic acid of trivalent or higher-valent and a ratio c of straight chain aliphatic dial are such that 12.5=a=46, 20=c=65, 0.25=a/c=1.52, the multivalent carboxylic acid of trivalent or higher-valent and/or the straight chain aliphatic dial constituting the non-crystalline polyester and/or the crystalline polyester.

Abstract translation: 公开了一种调色剂，其包括：至少包含树脂，着色剂和脱模剂的调色剂颗粒，其中调色剂颗粒的圆度的平均值e在0.935 = e = 0.982之内，最大吸热峰温度 的脱模剂存在于85-98℃之内，树脂至少包括非结晶聚酯和结晶聚酯，三价或更多价多价羧酸的比例a和直链脂肪族表盘的比例c 使得构成非结晶性聚酯的三价或更高价的多价羧酸和/或直链脂肪族表盘的/或= 结晶聚酯。