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公开(公告)号:US20100310981A1
公开(公告)日:2010-12-09
申请号:US12792132
申请日:2010-06-02
申请人: Junichi Ishikawa , Takayasu Aoki , Tsuyoshi Itou , Yasuhito Noda , Motonari Udo , Satoshi Araki , Masahiro Ikuta , Takafumi Hara , Takashi Urabe , Taishi Takano , Yasuo Goto
发明人: Junichi Ishikawa , Takayasu Aoki , Tsuyoshi Itou , Yasuhito Noda , Motonari Udo , Satoshi Araki , Masahiro Ikuta , Takafumi Hara , Takashi Urabe , Taishi Takano , Yasuo Goto
CPC分类号: G03G9/08795 , G03G9/0804 , G03G9/081 , G03G9/0819 , G03G9/08755
摘要: According to one embodiment, a method for producing a developing agent includes pulverizing a mixture in the form of coarse particles of a toner material including a coloring agent and a binder resin by mechanical shearing, aggregating and fusing the resulting fine particles. The solid content concentration in a dispersion liquid including the aggregated particles is from 5.0% to 40.0%, the volume average particle diameter of the aggregated particles is from 1.0 μm to 10.0 μm, and the ratio of the standard deviation to the volume average particle diameter is 30.0% or less.
摘要翻译: 根据一个实施方案,用于生产显影剂的方法包括通过机械剪切来粉碎包括着色剂和粘合剂树脂的调色剂材料的粗颗粒形式的混合物,使所得到的微粒聚集和熔融。 包含凝集粒子的分散液中的固体成分浓度为5.0〜40.0%,凝集粒子的体积平均粒径为1.0〜10.0μm,标准偏差与体积平均粒径的比率 为30.0%以下。
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公开(公告)号:US20100209840A1
公开(公告)日:2010-08-19
申请号:US12638145
申请日:2009-12-15
申请人: Masahiro Ikuta , Takayasu Aoki , Takashi Urabe , Tsuyoshi Itou , Satoshi Araki , Motonari Udo , Takafumi Hara
发明人: Masahiro Ikuta , Takayasu Aoki , Takashi Urabe , Tsuyoshi Itou , Satoshi Araki , Motonari Udo , Takafumi Hara
CPC分类号: G03G9/09392 , G03G9/0804 , G03G9/08797 , G03G9/09328 , G03G9/09371
摘要: As a first dispersion liquid containing first fine particles and a second dispersion liquid containing second fine particles, those satisfy the relationship represented by the following formula (1) are used, and these two dispersion liquids are mixed with each other, and an aggregating agent and a pH adjusting agent are added thereto in sequence, whereby encapsulation is achieved by selective formation of core particles through aggregation of the first fine particles and shells through aggregation of the second fine particles. 15 mV≧|Z2−Z1|≧5 mV (1) In the formula, Z1 and Z2 represent zeta potentials of the first dispersion liquid and the second dispersion liquid, respectively, measured when aluminum sulfate is added to each dispersion liquid in an amount of 1% by weight based on the solid content in each dispersion liquid.
摘要翻译: 作为含有第一细小颗粒的第一分散液和含有第二细颗粒的第二分散液,使用满足由下式(1)表示的关系的第二分散液,将这两种分散液彼此混合,并将聚集剂和 依次加入pH调节剂,由此通过使第一细颗粒和壳通过第二细颗粒的聚集而聚集而选择性形成核心颗粒来实现包封。 15mV≥| Z2-Z1 |≥5mV(1)在式中,Z1和Z2分别表示当将各种分散液中的硫酸铝加入量时测定的第一分散液和第二分散液的ζ电位 相对于各分散液中的固体成分为1重量%。
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公开(公告)号:US20100009281A1
公开(公告)日:2010-01-14
申请号:US12500085
申请日:2009-07-09
申请人: Tsuyoshi Itou , Takayasu Aoki , Takashi Urabe , Yasuhito Noda , Motonari Udo , Satoshi Araki , Masahiro Ikuta , Takafumi Hara , Asumi Matsumoto
发明人: Tsuyoshi Itou , Takayasu Aoki , Takashi Urabe , Yasuhito Noda , Motonari Udo , Satoshi Araki , Masahiro Ikuta , Takafumi Hara , Asumi Matsumoto
CPC分类号: G03G9/08795 , G03G9/0804 , G03G9/0808 , G03G9/0819 , G03G9/08755 , G03G9/08797 , G03G9/09708
摘要: The method for producing a developing agent according to the invention contains subjecting the toner material dispersion liquid to mechanical shearing to make the granular mixture into fine particles, thereby providing a dispersion liquid containing fine particles having a smaller particle diameter than a particle diameter of the granular mixture. The toner material dispersion liquid is subjected to mechanical shearing under a temperature of a glass transition point Tg of the binder resin or more and a pressure of 10 MPa or more, and the resulting dispersion liquid containing the fine particles is depressurized with two or more stages while maintaining the temperature of a glass transition point Tg of the binder resin or more and then cooled to a temperature of a glass transition point Tg of the binder resin or less.
摘要翻译: 根据本发明的显影剂的制造方法包括使调色剂分散液进行机械剪切以使颗粒状混合物成为细颗粒,从而提供包含比颗粒的粒径小的粒径的分散液 混合物。 调色剂分散液在粘合剂树脂的玻璃化转变点Tg的温度和10MPa以上的压力的温度下进行机械剪切,将所得到的含有微粒的分散液用两级以上的级 同时保持粘合剂树脂的玻璃化转变点Tg的温度以上,然后冷却至粘合剂树脂的玻璃化转变点Tg的温度以下。
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公开(公告)号:US07960086B2
公开(公告)日:2011-06-14
申请号:US12266260
申请日:2008-11-06
申请人: Takayasu Aoki , Takashi Urabe , Takafumi Hara , Tsuyoshi Itou , Masahiro Ikuta , Motonari Udo , Yasuhito Noda , Satoshi Araki , Asumi Matsumoto
发明人: Takayasu Aoki , Takashi Urabe , Takafumi Hara , Tsuyoshi Itou , Masahiro Ikuta , Motonari Udo , Yasuhito Noda , Satoshi Araki , Asumi Matsumoto
IPC分类号: G03G9/08
CPC分类号: G03G9/0806 , G03G9/0819 , G03G9/0827 , G03G9/08755 , G03G9/09708
摘要: A coarse particle containing a polyester based resin and a coloring agent is added in an aqueous medium containing a surfactant, a basic substance and an inorganic water-soluble electrolyte, and dispersion and coagulation are carried out to form a toner particle.
摘要翻译: 将含有聚酯类树脂和着色剂的粗粒子加入含有表面活性剂,碱性物质和无机水溶性电解质的水性介质中,进行分散凝固,形成调色剂颗粒。
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公开(公告)号:US20100009276A1
公开(公告)日:2010-01-14
申请号:US12500070
申请日:2009-07-09
申请人: Takayasu Aoki , Asumi Matsumoto , Takashi Urabe , Tsuyoshi Itou , Motonari Udo , Satoshi Araki , Masahiro Ikuta , Takafumi Hara , Yasuhito Noda
发明人: Takayasu Aoki , Asumi Matsumoto , Takashi Urabe , Tsuyoshi Itou , Motonari Udo , Satoshi Araki , Masahiro Ikuta , Takafumi Hara , Yasuhito Noda
CPC分类号: G03G9/0804 , G03G9/0819 , G03G9/08755
摘要: In a method for producing a developing agent by coagulating a toner fine particle dispersion including a toner fine particle, an aqueous medium and a dispersant to obtain a toner particle, the coagulation is carried out only by pH adjustment, the dispersant is a surfactant, and a concentration of the surfactant is a concentration of not more than a critical micell concentration of the toner material dispersion.
摘要翻译: 在通过使包含调色剂微粒,水性介质和分散剂的调色剂微粒分散体凝结得到调色剂颗粒的显影剂的制造方法中,凝聚仅通过pH调节进行,分散剂是表面活性剂,和 表面活性剂的浓度为调色剂材料分散体的临界胶束浓度以下的浓度。
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公开(公告)号:US20090155702A1
公开(公告)日:2009-06-18
申请号:US12330957
申请日:2008-12-09
申请人: Masahiro Ikuta , Takayasu Aoki , Takashi Urabe , Tsuyoshi Itou , Yasuhito Noda , Motonari Udo , Satoshi Araki , Takafumi Hara , Asumi Matsumoto
发明人: Masahiro Ikuta , Takayasu Aoki , Takashi Urabe , Tsuyoshi Itou , Yasuhito Noda , Motonari Udo , Satoshi Araki , Takafumi Hara , Asumi Matsumoto
CPC分类号: G03G9/0806 , G03G9/09741 , G03G9/0975
摘要: After fine particles containing a binder resin and a coloring agent are agglomerated in a dispersion liquid to form agglomerated particles, an inverting agent which inverts a sign of a zeta potential of the agglomerated particles is added to the dispersion liquid to stabilize the agglomerated particles, and then, the agglomerated particles are fused.
摘要翻译: 将含有粘合剂树脂和着色剂的微粒子在分散液中凝集形成凝集粒子后,将分散液中的凝结粒子的ζ电位反转的反转剂加入分散液中,使凝聚的粒子稳定, 然后,凝聚的颗粒被熔化。
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公开(公告)号:US20090136864A1
公开(公告)日:2009-05-28
申请号:US12244251
申请日:2008-10-02
申请人: Tsuyoshi Itou , Takayasu Aoki , Takashi Urabe , Motonari Udo , Yasuhito Noda , Satoshi Araki , Masahiro Ikuta , Takafumi Hara
发明人: Tsuyoshi Itou , Takayasu Aoki , Takashi Urabe , Motonari Udo , Yasuhito Noda , Satoshi Araki , Masahiro Ikuta , Takafumi Hara
CPC分类号: G03G9/0804 , G03G9/0819 , G03G9/08755 , G03G9/09741
摘要: It is intended to provide a method includes the step of forming agglomerated particles by agglomerating fine particulate mixture containing a binder resin and a colorant. In the step of forming agglomerated particles, a cationic organic coagulating agent having an average molecular weight of from 1000 to 100000 is added to a liquid dispersion containing fine particles.
摘要翻译: 旨在提供一种方法,包括通过聚集含有粘合剂树脂和着色剂的细颗粒混合物形成附聚颗粒的步骤。 在形成附聚颗粒的步骤中,将平均分子量为1000至100000的阳离子有机凝结剂加入到含有细颗粒的液体分散体中。
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公开(公告)号:US20080286678A1
公开(公告)日:2008-11-20
申请号:US12119840
申请日:2008-05-13
申请人: Takayasu Aoki , Motonari Udo , Masahiro Ikuta , Tsuyoshi Itou , Takashi Urabe , Takafumi Hara , Satoshi Araki , Yasuhito Noda
发明人: Takayasu Aoki , Motonari Udo , Masahiro Ikuta , Tsuyoshi Itou , Takashi Urabe , Takafumi Hara , Satoshi Araki , Yasuhito Noda
IPC分类号: G03G9/00
CPC分类号: G03G9/09371 , G03G9/09321 , G03G9/09392
摘要: A developing agent including a core containing an amorphous polyester resin and a fatty acid ester based wax, a shell provided on the surface of the core and containing a copolymer of an aromatic vinyl monomer and acrylic acid or an acrylic ester, and a coloring agent.
摘要翻译: 包含含有无定形聚酯树脂和脂肪酸酯类蜡的芯的显影剂,在芯的表面上设置的壳,并含有芳族乙烯基单体和丙烯酸或丙烯酸酯的共聚物和着色剂。
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公开(公告)号:US08227167B2
公开(公告)日:2012-07-24
申请号:US12500085
申请日:2009-07-09
申请人: Tsuyoshi Itou , Takayasu Aoki , Takashi Urabe , Yasuhito Noda , Motonari Udo , Satoshi Araki , Masahiro Ikuta , Takafumi Hara , Asumi Matsumoto
发明人: Tsuyoshi Itou , Takayasu Aoki , Takashi Urabe , Yasuhito Noda , Motonari Udo , Satoshi Araki , Masahiro Ikuta , Takafumi Hara , Asumi Matsumoto
IPC分类号: G03G9/08
CPC分类号: G03G9/08795 , G03G9/0804 , G03G9/0808 , G03G9/0819 , G03G9/08755 , G03G9/08797 , G03G9/09708
摘要: The method for producing a developing agent according to the invention contains subjecting the toner material dispersion liquid to mechanical shearing to make the granular mixture into fine particles, thereby providing a dispersion liquid containing fine particles having a smaller particle diameter than a particle diameter of the granular mixture. The toner material dispersion liquid is subjected to mechanical shearing under a temperature of a glass transition point Tg of the binder resin or more and a pressure of 10 MPa or more, and the resulting dispersion liquid containing the fine particles is depressurized with two or more stages while maintaining the temperature of a glass transition point Tg of the binder resin or more and then cooled to a temperature of a glass transition point Tg of the binder resin or less.
摘要翻译: 根据本发明的显影剂的制造方法包括使调色剂分散液进行机械剪切以使颗粒状混合物成为细颗粒,从而提供包含比颗粒的粒径小的粒径的分散液 混合物。 调色剂分散液在粘合剂树脂的玻璃化转变点Tg的温度和10MPa以上的压力的温度下进行机械剪切,将所得到的含有微粒的分散液用两级以上的级 同时保持粘合剂树脂的玻璃化转变点Tg的温度以上,然后冷却至粘合剂树脂的玻璃化转变点Tg的温度以下。
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公开(公告)号:US07981587B2
公开(公告)日:2011-07-19
申请号:US11924821
申请日:2007-10-26
申请人: Takayasu Aoki , Masahiro Ikuta , Tsuyoshi Itou , Takashi Urabe , Motonari Udo , Satoshi Araki
发明人: Takayasu Aoki , Masahiro Ikuta , Tsuyoshi Itou , Takashi Urabe , Motonari Udo , Satoshi Araki
IPC分类号: G03G9/08
CPC分类号: G03G9/0804 , G03G9/0819 , G03G9/08755 , G03G9/08791 , G03G9/08797
摘要: A method for producing a developing agent including heating a dispersion of a toner particle material containing a binder resin fine particle, a coloring agent particle and a dispersion medium at a temperature of a glass transition point of the binder resin or higher and adding a coagulating agent in the heated dispersion of a toner particle material to coagulate a toner material containing the binder resin fine particle and the coloring agent particle, thereby forming a coagulated particle is disclosed.
摘要翻译: 一种生产显影剂的方法,包括在粘合剂树脂的玻璃化转变点或更高温度下加热含有粘合剂树脂微粒,着色剂颗粒和分散介质的调色剂颗粒材料的分散体,并加入凝结剂 在调色剂颗粒材料的加热分散体中凝结含有粘结剂树脂微粒和着色剂颗粒的调色剂材料,从而形成凝固颗粒。
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