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公开(公告)号：US07371494B2
公开(公告)日：2008-05-13
申请号：US10938590
申请日：2004-09-13
IPC分类号： G03G9/083
摘要： The present invention provides a magnetic toner which is hardly influenced by an environment, and with which an image with high quality and excellent resolution can be stably even under low humidity. In the magnetic toner of present invention: I) a ratio of an iron element content to a carbon element content present on the toner particle surface is less than 0.0010; II) 50 number % or more of toner particles satisfy a relationship of D/C≦0.02 (C: projected area diameter of toner particles, D: minimum value for a distance between a magnetic iron oxide fine particle and the toner particle surface); and III) 40-95 number % of toner particles satisfy a structure where 70 number % or more of the magnetic iron oxide fine particles in the respective toner particles are present up to a depth of 0.2 time as far as C from the toner particle surface.
摘要翻译： 本发明提供一种几乎不受环境影响的磁性调色剂，即使在低湿度下也能稳定地进行高品质，高分辨率的图像稳定化。 在本发明的磁性调色剂中：I）调色剂颗粒表面上存在的铁元素含量与碳元素含量之比小于0.0010; II）50数量％以上的调色剂颗粒满足D / C <0.02的关系（C：调色剂颗粒的投影面积直径D：磁性氧化铁微粒与调色剂颗粒表面之间的距离的最小值） ; 和III）40-95％的调色剂颗粒满足其中相应调色剂颗粒中的磁性氧化铁细颗粒的70个数量％或更多到达调色剂颗粒表面的深度为0.2倍的结构 。
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公开(公告)号：US20050089785A1
公开(公告)日：2005-04-28
申请号：US10938590
申请日：2004-09-13
摘要： The present invention provides a magnetic toner which is hardly influenced by an environment, and with which an image with high quality and excellent resolution can be stably even under low humidity. In the magnetic toner of present invention: I) a ratio of an iron element content to a carbon element content present on the toner particle surface is less than 0.0010; II) 50 number % or more of toner particles satisfy a relationship of D/C≦0.02 (C: projected area diameter of toner particles, D: minimum value for a distance between a magnetic iron oxide fine particle and the toner particle surface); and III) 40-95 number % of toner particles satisfy a structure where 70 number % or more of the magnetic iron oxide fine particles in the respective toner particles are present up to a depth of 0.2 time as far as C from the toner particle surface.
摘要翻译： 本发明提供一种几乎不受环境影响的磁性调色剂，即使在低湿度下也能稳定地进行高品质，高分辨率的图像稳定化。 在本发明的磁性调色剂中：I）调色剂颗粒表面上存在的铁元素含量与碳元素含量之比小于0.0010; II）50数量％以上的调色剂颗粒满足D / C <0.02的关系（C：调色剂颗粒的投影面积直径D：磁性氧化铁微粒与调色剂颗粒表面之间的距离的最小值） ; 和III）40-95％的调色剂颗粒满足其中相应调色剂颗粒中的磁性氧化铁细颗粒的70个数量％或更多到达调色剂颗粒表面的深度为0.2倍的结构 。
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公开(公告)号：US07560212B2
公开(公告)日：2009-07-14
申请号：US12050420
申请日：2008-03-18
IPC分类号： G03G9/083
摘要： The present invention provides a magnetic toner which is hardly influenced by an environment, and with which an image with high quality and excellent resolution can be stably even under low humidity. In the magnetic toner of present invention: I) a ratio of an iron element content to a carbon element content present on the toner particle surface is less than 0.0010; II) 50 number % or more of toner particles satisfy a relationship of D/C≦0.02 (C: projected area diameter of toner particles, D: minimum value for a distance between a magnetic iron oxide fine particle and the toner particle surface); and III) 40-95 number % of toner particles satisfy a structure where 70 number % or more of the magnetic iron oxide fine particles in the respective toner particles are present up to a depth of 0.2 time as far as C from the toner particle surface.
摘要翻译： 本发明提供一种几乎不受环境影响的磁性调色剂，即使在低湿度下也能稳定地进行高品质，高分辨率的图像稳定化。 在本发明的磁性调色剂中：I）调色剂颗粒表面上存在的铁元素含量与碳元素含量之比小于0.0010; II）50数量％以上的调色剂颗粒满足D / C <0.02的关系（C：调色剂颗粒的投影面积直径D：磁性氧化铁微粒与调色剂颗粒表面之间的距离的最小值） ; 和III）40-95％的调色剂颗粒满足其中相应调色剂颗粒中的70％或更多的磁性氧化铁细颗粒直到距调色剂颗粒表面的深度为0.2倍的结构 。
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公开(公告)号：US06653035B2
公开(公告)日：2003-11-25
申请号：US10202903
申请日：2002-07-26
申请人： Keiji Komoto , Tatsuya Nakamura , Tatsuhiko Chiba , Michihisa Magome , Akira Hashimoto , Takeshi Kaburagi , Eriko Yanase
发明人： Keiji Komoto , Tatsuya Nakamura , Tatsuhiko Chiba , Michihisa Magome , Akira Hashimoto , Takeshi Kaburagi , Eriko Yanase
IPC分类号： G03G9083
CPC分类号： G03G9/0834 , G03G9/0819 , G03G9/0825 , G03G9/0827 , G03G9/0836 , G03G9/0837 , G03G9/0838 , G03G9/08711 , G03G9/08722 , G03G9/08771 , G03G9/08782 , G03G9/08791
摘要： A magnetic toner exhibiting stable performances under various environmental conditions is formed of toner particles each comprising at least a binder resin and iron oxide dispersed therein. Relative to the dry specific gravity (A) of the magnetic toner, the magnetic toner is characterized by a specific gravity distribution of toner particle fractions obtainable through wet sedimentation and including: at most 15 wt. % of a fraction having a specific gravity of above (A)×1.000 and at most (A)×1.025, 0.1-20 wt. % of a fraction having a specific gravity of above (A)×0.975 and at most (A)×1.000, at least 30 wt. % of a fraction having a specific gravity of above (A)×0.950 and at most (A)×0.975, 0.1-20 wt. % of a fraction having a specific gravity of above (A)×0.925 and at most (A)×0.950, and at most 15 wt. % of a fraction having a specific gravity of above (A)×0.900 and at most (A)×0.925.
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公开(公告)号：US20080171277A1
公开(公告)日：2008-07-17
申请号：US12050420
申请日：2008-03-18
IPC分类号： G03G9/083
摘要： The present invention provides a magnetic toner which is hardly influenced by an environment, and with which an image with high quality and excellent resolution can be stably even under low humidity. In the magnetic toner of present invention: I) a ratio of an iron element content to a carbon element content present on the toner particle surface is less than 0.0010; II) 50 number % or more of toner particles satisfy a relationship of D/C≦0.02 (C: projected area diameter of toner particles, D: minimum value for a distance between a magnetic iron oxide fine particle and the toner particle surface); and III) 40-95 number % of toner particles satisfy a structure where 70 number % or more of the magnetic iron oxide fine particles in the respective toner particles are present up to a depth of 0.2 time as far as C from the toner particle surface.
摘要翻译： 本发明提供一种几乎不受环境影响的磁性调色剂，即使在低湿度下也能稳定地进行高品质，高分辨率的图像稳定化。 在本发明的磁性调色剂中：I）调色剂颗粒表面上存在的铁元素含量与碳元素含量之比小于0.0010; II）50数量％以上的调色剂颗粒满足D / C <0.02的关系（C：调色剂颗粒的投影面积直径D：磁性氧化铁微粒与调色剂颗粒表面之间的距离的最小值） ; 和III）40-95％的调色剂颗粒满足其中相应调色剂颗粒中的磁性氧化铁细颗粒的70个数量％或更多到达调色剂颗粒表面的深度为0.2倍的结构 。
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公开(公告)号：US06638674B2
公开(公告)日：2003-10-28
申请号：US09911724
申请日：2001-07-25
申请人： Keiji Komoto , Tsuyoshi Takiguchi , Tatsuhiko Chiba , Michihisa Magome , Akira Hashimoto , Takeshi Kaburagi , Eriko Yanase
发明人： Keiji Komoto , Tsuyoshi Takiguchi , Tatsuhiko Chiba , Michihisa Magome , Akira Hashimoto , Takeshi Kaburagi , Eriko Yanase
IPC分类号： G03G9083
CPC分类号： G03G9/08791 , G03G9/0821 , G03G9/0825 , G03G9/0827 , G03G9/083 , G03G9/08726
摘要： A magnetic toner is formed of magnetic toner particles each comprising a binder resin, an iron oxide, a sulfur-containing polymer, and inorganic fine powder blended with the magnetic toner particles, the toner having a weight-average particle size (D4) of 3-10 &mgr;m, and either (a) an average circularity of at least 0.970, and a magnetization of 10-50 Am2/kg (emu/g) at a magnetic field of 79.6 kA/m (1000 oersted), or (b) toner particles which retain carbon in an amount of A and iron in an amount of B at surfaces thereof, satisfying: B/A
摘要翻译： 磁性调色剂由各自包含粘合剂树脂，氧化铁，含硫聚合物和与磁性调色剂颗粒混合的无机细粉末的磁性调色剂颗粒形成，调色剂的重均粒径（D4）为3 -10μm，并且（a）在79.6kA / m（1000奥斯特）的磁场下的平均圆形度为至少0.970，磁化强度为10-50Am 2 / kg（emu / g），或 （b）在其表面保留B量的A和铁的碳的调色剂颗粒满足：B / A <0.001，并且含有至少50数量的D / C的磁性调色剂颗粒< 0.02，其中C表示颗粒投影面积当量圆直径，D表示磁性调色剂颗粒的表面与其中所含的氧化铁颗粒之间的最小距离。
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公开(公告)号：US07678523B2
公开(公告)日：2010-03-16
申请号：US12330658
申请日：2008-12-09
申请人： Shuichi Hiroko , Tadashi Dojo , Michihisa Magome , Eriko Yanase , Takashi Matsui , Tomohisa Sano , Akira Sakakibara
发明人： Shuichi Hiroko , Tadashi Dojo , Michihisa Magome , Eriko Yanase , Takashi Matsui , Tomohisa Sano , Akira Sakakibara
IPC分类号： G03G9/00
CPC分类号： G03G9/0835 , G03G9/0804 , G03G9/0821 , G03G9/0827 , G03G9/0833 , G03G9/0839 , G03G9/08711 , G03G9/08755 , G03G9/08793 , G03G9/08795 , G03G9/08797
摘要： To provide a magnetic toner which has superior low-temperature fixing performance and pressure roller anti-staining properties even in various forms of use, has been kept from image defects such as image non-uniformity even during long-time image reproduction and can achieve high-level image quality. In a magnetic toner having toner particles containing at least a binder resin and a magnetic material, the activation energy Ea (kJ/mol) that is determined from a shift factor aT120 in a master curve of the toner, prepared when 120° C. is set as reference temperature, and the activation energy Eb (kJ/mol) that is determined from a shift factor aT150 in a master curve of the toner, prepared when 150° C. is set as reference temperature, satisfy Expression (1), and the Ea is 110 kJ/mol or less: 1.00≦Ea/Eb
摘要翻译： 为了提供即使在各种形式的使用中也具有优异的低温定影性能和耐压辊抗污染性的磁性调色剂，即使在长时间的图像再现中也保持图像不均匀的图像缺陷，并且可以实现高 级图像质量。 在具有至少含有粘合剂树脂和磁性材料的调色剂颗粒的磁性调色剂中，在120℃下制备的调色剂的主曲线中的移动因子aT120确定的活化能Ea（kJ / mol）为 设定为参考温度，并且将由150℃下制备的调色剂的主曲线中的移动因子aT150确定的活化能Eb（kJ / mol）设定为基准温度，满足式（1），并且 Ea为110kJ / mol以下：1.00＆nlE; Ea / Eb <1.20（1）。
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公开(公告)号：US20060057483A1
公开(公告)日：2006-03-16
申请号：US11224010
申请日：2005-09-13
IPC分类号： G03G9/08
CPC分类号： G03G9/08795 , G03G9/0825 , G03G9/0827 , G03G9/08755 , G03G9/08797
摘要： An object of the present invention is to provide a toner excellent in durability and storage stability, and having good fixing performance in a wide fixing temperature region even at a high process speed. According to the present invention, there is provided a toner containing: a binder resin; a colorant; and a polyester resin, in which: I) the polyester resin contains at least, as a main component, polyester obtained by subjecting a monomer composition containing an alcohol selected from aliphatic diols each having 2 to 22 carbon atoms and a carboxylic acid selected from aliphatic dicarboxylic acids each having 2 to 22 carbon atoms to a polycondensation reaction; and II) a region having a lamellar structure is present at a surface layer of the toner.
摘要翻译： 本发明的目的是提供耐久性和储存稳定性优异的调色剂，即使在高处理速度下也能在宽的定影温度区域具有良好的定影性能。 根据本发明，提供一种调色剂，其含有：粘合剂树脂; 着色剂 和聚酯树脂，其中：I）所述聚酯树脂至少含有通过使含有选自脂肪族二醇和碳原子数2〜22的醇的单体组合物和选自脂肪族的羧酸的单体组合物作为主要成分 对于缩聚反应，各具有2〜22个碳原子的二羧酸; 和II）具有层状结构的区域存在于调色剂的表面层上。
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公开(公告)号：US07935467B2
公开(公告)日：2011-05-03
申请号：US12272976
申请日：2008-11-18
申请人： Tadashi Dojo , Michihisa Magome , Eriko Yanase , Takashi Matsui , Tomohisa Sano , Akira Sakakibara , Shuichi Hiroko
发明人： Tadashi Dojo , Michihisa Magome , Eriko Yanase , Takashi Matsui , Tomohisa Sano , Akira Sakakibara , Shuichi Hiroko
IPC分类号： G03G15/01
CPC分类号： G03G9/0836 , G03G9/0819 , G03G9/0821 , G03G9/0825 , G03G9/0827 , G03G9/0833 , G03G9/0834 , G03G9/0835 , G03G9/09716 , G03G9/09725
摘要： In a magnetic toner which has magnetic toner base particles containing at least a binder resin and a magnetic material, and an inorganic fine powder, (i) the magnetic toner has an average circularity of from 0.950 or more to 1.000 or less, (ii) the magnetic toner has a compressibility of 30 or less, and (iii) the magnetic toner contains boron nitride particles having a median diameter (D50) of from 0.5 μm or more to 8.0 μm or less, as the inorganic fine powder in an amount of from 0.05 part by mass or more to 1.00 part by mass or less based on 100 parts by mass of the magnetic toner base particles. This provides a magnetic toner with which stable image density can be achieved without regard to service environment and which do not cause any image defects such as fog.
摘要翻译： 在具有至少含有粘合剂树脂和磁性材料的磁性调色剂基础颗粒和无机细粉末的磁性调色剂中，（i）磁性调色剂的平均圆形度为0.950以上至1.000以下，（ii） 磁性调色剂的压缩率为30以下，（iii）磁性调色剂含有中值粒径（D50）为0.5μm以上且8.0μm以下的氮化硼粒子，作为无机细粉末， 相对于100质量份的磁性调色剂基础颗粒，为0.05质量份以上至1.00质量份以下。 这提供了一种磁性调色剂，其可以在不考虑使用环境的情况下实现稳定的图像浓度，并且不会引起诸如雾的图像缺陷。
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公开(公告)号：US07923190B2
公开(公告)日：2011-04-12
申请号：US12578112
申请日：2009-10-13
申请人： Michihisa Magome , Tadashi Dojo , Eriko Yanase , Takashi Matsui , Tomohisa Sano , Akira Sakakibara , Shuichi Hiroko
发明人： Michihisa Magome , Tadashi Dojo , Eriko Yanase , Takashi Matsui , Tomohisa Sano , Akira Sakakibara , Shuichi Hiroko
IPC分类号： G03G9/08
CPC分类号： G03G9/0827 , G03G9/083 , G03G9/08711 , G03G9/08755 , G03G9/08782 , G03G9/08793 , G03G9/09733
摘要： In a toner containing at least a binder resin, a colorant, an ester compound and a low-melting material, the ester compound is an ester of dipentaerythritol with a carboxylic acid having 18 or more to 25 or less carbon atoms, and, where the melting point of the ester compound is represented by Tm(A) (° C.) and the melting point of the low-melting material is represented by Tm(B) (° C.), the toner satisfies the relationship of: Tm(B)≦Tm(A)+5.
摘要翻译： 在至少含有粘合剂树脂，着色剂，酯化合物和低熔点材料的调色剂中，酯化合物是二季戊四醇与碳原子数为18以上且25以下的羧酸的酯， 酯化合物的熔点由Tm（A）（℃）表示，低熔点材料的熔点由Tm（B）（℃）表示，调色剂满足Tm（ B）＆nlE; Tm（A）+5。
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