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    Decolorable toner and process for production thereof
    12.
    发明授权
    Decolorable toner and process for production thereof 有权
    无色调色剂及其生产方法

    公开(公告)号：US08940468B2

    公开(公告)日：2015-01-27

    申请号：US13537451

    申请日：2012-06-29

    申请人： Takayasu Aoki ,  Takafumi Hara ,  Tsuyoshi Itou ,  Masahiro Ikuta ,  Motonari Udo ,  Koji Shimokusa ,  Hiroshi Mizuhata

    发明人： Takayasu Aoki ,  Takafumi Hara ,  Tsuyoshi Itou ,  Masahiro Ikuta ,  Motonari Udo ,  Koji Shimokusa ,  Hiroshi Mizuhata

    IPC分类号： G03G9/00 ,  G03G9/09 ,  G03G9/087

    CPC分类号： G03G9/0928 ,  G03G9/08755 ,  G03G9/08793 ,  G03G9/0926

    摘要： Disclosed is a process for production of a decolorable toner, including: aggregating dispersed fine particles of a color material comprising at least a color-forming compound, a color-developing agent and a decoloring agent with dispersed fine particles comprising at least a binder resin comprising a polyester resin to form aggregates in an aqueous medium, adding a reactive polymer having an oxazoline group in to the aqueous medium, and fusing the aggregates in the aqueous medium. As a result, it becomes possible to produce a decolorable toner which suppresses the generation of fine powder due to the release of fine particles of an erasable color material from the toner.

    摘要翻译： 本发明公开了一种无色调色剂的制造方法，其特征在于，包括使至少含有成色化合物，显色剂和脱色剂的着色材料的分散微粒聚集到至少包含粘合剂树脂的分散细小颗粒中，所述粘合剂树脂包含 在水性介质中形成聚集体的聚酯树脂，在水性介质中加入具有恶唑啉基团的反应性聚合物，并将聚集体熔合在水性介质中。 结果，可以生产一种不会调色的调色剂，该调色剂抑制由于可从调色剂中释放出可擦除色料的细颗粒而产生细粉。

    Decolorizable water-based inkjet ink
    13.
    发明授权
    Decolorizable water-based inkjet ink 有权
    脱色水性喷墨油墨

    公开(公告)号：US08894193B2

    公开(公告)日：2014-11-25

    申请号：US13090413

    申请日：2011-04-20

    申请人： Takayasu Aoki ,  Takafumi Hara ,  Tsuyoshi Itou

    发明人： Takayasu Aoki ,  Takafumi Hara ,  Tsuyoshi Itou

    IPC分类号： C09D11/00 ,  C09D11/38 ,  C09D11/328

    CPC分类号： C09D11/38 ,  C09D11/328

    摘要： According to one embodiment, a decolorizable water-based inkjet ink includes a color material, a solvent, and a nonionic surfactant. The color material contains a color developable compound and a color developing agent, and the solvent contains water and a water-soluble organic solvent. The nonionic surfactant is contained in the ink in an amount of 5 wt % or more of the total amount of the solvent.

    摘要翻译： 根据一个实施方案，可脱色的水性喷墨油墨包括着色材料，溶剂和非离子表面活性剂。 着色材料含有显色性的化合物和显色剂，溶剂含有水和水溶性有机溶剂。 非离子表面活性剂的含量为溶剂总量的5重量％以上。

    DEVELOPING AGENT AND METHOD FOR PRODUCING THE SAME
    19.
    发明申请
    DEVELOPING AGENT AND METHOD FOR PRODUCING THE SAME 审中-公开
    开发代理及其生产方法

    公开(公告)号：US20110014558A1

    公开(公告)日：2011-01-20

    申请号：US12832380

    申请日：2010-07-08

    申请人： Masahiro Ikuta ,  Takayasu Aoki ,  Takashi Urabe ,  Tsuyoshi Itou ,  Motonari Udo ,  Satoshi Araki ,  Takafumi Hara ,  Yasuhito Noda ,  Taishi Takano ,  Yasuo Goto ,  Junichi Ishikawa

    发明人： Masahiro Ikuta ,  Takayasu Aoki ,  Takashi Urabe ,  Tsuyoshi Itou ,  Motonari Udo ,  Satoshi Araki ,  Takafumi Hara ,  Yasuhito Noda ,  Taishi Takano ,  Yasuo Goto ,  Junichi Ishikawa

    IPC分类号： G03G9/08

    CPC分类号： G03G9/0806 ,  G03G9/0823 ,  G03G9/0827 ,  G03G9/08755 ,  G03G9/0918

    摘要： According to one embodiment, a method for producing a developing agent including aggregating fine particles of a toner material containing a binder resin and a coloring agent in a dispersion liquid in which the fine particles are dispersed in an aqueous medium to form aggregated particles, and washing the aggregated particles and drying the washed aggregated particles, forming toner particles is provided. An electrical conductivity of the toner particles is measured by a toner electrical conductivity evaluation method. A sample toner is prepared by adhering an additive to surfaces of the toner particles, and a content ratio of a sodium element to a carbon element in a region to which the additive is not adhered of the toner is measured. The washing of the toner particles is repeated until each of the measurement values becomes a predetermined reference value or less.

    摘要翻译： 根据一个实施方案，一种生产显影剂的方法，包括在分散液中含有粘合剂树脂和着色剂的调色剂材料的细颗粒，其中细颗粒分散在水性介质中以形成凝集颗粒，并洗涤 提供聚集的颗粒并干燥洗涤的聚集颗粒，形成调色剂颗粒。 通过调色剂导电性评估方法测量调色剂颗粒的电导率。 通过将添加剂粘附到调色剂颗粒的表面，并测量在调色剂未附着添加剂的区域中的钠元素与碳元素的含量比，来制备样品调色剂。 重复调色剂颗粒的洗涤，直到每个测量值变为预定的参考值或更小。