公开(公告)号：US06808851B2

公开(公告)日：2004-10-26

申请号：US10248393

申请日：2003-01-15

申请人： Joseph A. Bartel ,  Patricia A. Burns ,  Raj D. Patel ,  Enno E. Agur ,  Danielle C. Boils ,  Edward G. Zwartz ,  Paul J. Gerroir ,  Maria N. V. McDougall

发明人： Joseph A. Bartel ,  Patricia A. Burns ,  Raj D. Patel ,  Enno E. Agur ,  Danielle C. Boils ,  Edward G. Zwartz ,  Paul J. Gerroir ,  Maria N. V. McDougall

IPC分类号： G03G9083

CPC分类号： G03G9/0804 ,  C08J3/215 ,  G03G9/0815

摘要： A process for the preparation of emulsion aggregation toner particles with high pigment loading having a reduced number of wax protrusions on the surface of the toner particles and fewer coarse toner particles. The process includes the introduction of a wax having a molecular weight between about 500 and 2,500, or a blend of waxes having different a molecular weight between 500 and 2,500.

摘要翻译： 一种制备具有高颜料负载的乳液聚集调色剂颗粒的方法，其中调色剂颗粒表面上的蜡突起数量减少，较少的粗调色剂颗粒。 该方法包括引入分子量为约500-2,500的蜡，或分子量不同于500至2500之间的蜡的共混物。

公开(公告)号：US06677092B2

公开(公告)日：2004-01-13

申请号：US09840801

申请日：2001-04-23

申请人： Takaaki Arai

发明人： Takaaki Arai

IPC分类号： G03G9083

CPC分类号： G03G9/09708 ,  G03G9/083 ,  G03G9/0835 ,  G03G9/0836 ,  G03G9/09725

摘要： A magnetic toner for MICR printers is provided with a binder resin, magnetic powder, and metal oxide particles which are in the outer surface of each toner base particle made from the binder resin and the magnetic powder, the metal oxide particles having a volume resistivity of 1×105 to 1×1011 &OHgr;·cm. A developer containing this MICR toner makes it possible to provide superior image density and reading precision, even after 150,000 to 300,000 sheets of A-4 paper have been continuously printed.

摘要翻译： 用于MICR打印机的磁性调色剂设置有粘合剂树脂，磁性粉末和金属氧化物颗粒，其在由粘合剂树脂和磁性粉末制成的每个调色剂基础颗粒的外表面中，金属氧化物颗粒的体积电阻率 1×10 5至1×10 11Ω·cm。 含有这种MICR调色剂的显影剂即使连续印刷了15万到30万张A-4纸，也能提供卓越的图像浓度和读取精度。

公开(公告)号：US06656658B2

公开(公告)日：2003-12-02

申请号：US10106512

申请日：2002-03-25

申请人： Raj D. Patel ,  Michael A. Hopper ,  Joseph Bartel ,  Edward G. Zwartz

发明人： Raj D. Patel ,  Michael A. Hopper ,  Joseph Bartel ,  Edward G. Zwartz

IPC分类号： G03G9083

CPC分类号： G03G9/0904 ,  C08J3/2053 ,  G03G9/0804 ,  G03G9/0821 ,  G03G9/0833 ,  G03G9/08782

摘要： A toner process comprising heating an acidified dispersion of an acicular magnetite, a carbon black colorant dispersion, an optional wax dispersion, and an acicular latex.

摘要翻译： 一种调色剂方法，包括加热针状磁铁矿的酸化分散体，炭黑着色剂分散体，任选的蜡分散体和针状胶乳。

公开(公告)号：US06610451B2

公开(公告)日：2003-08-26

申请号：US09747764

申请日：2000-12-26

申请人： Thomas A. Jadwin ,  John F. Crichton ,  Robert D. Fields ,  Eric C. Stelter

发明人： Thomas A. Jadwin ,  John F. Crichton ,  Robert D. Fields ,  Eric C. Stelter

IPC分类号： G03G9083

CPC分类号： B82Y15/00 ,  G03G9/083 ,  G03G9/097 ,  G03G9/09708 ,  G03G9/09733 ,  G03G13/09 ,  G03G2215/0013

摘要： Development systems and methods for developing using magnetic toner are disclosed. The present invention further discloses developers used in development systems as well as the toner used in developer for magnetic ink character recognition printing. With respect to the development system, a development system is disclosed which includes a supply of dry developer mixture which contains magnetic toner particles and hard magnetic carrier particles. The development system further includes a non-magnetic, cylindrical shell for transporting the developer between the supply and the development zone, wherein the shell can be rotatable or stationary. A rotating magnetic core of a pre-selected magnetic field strength and means for rotating at least the magnetic core to provide for the transport of the toner particles from the shell to an electrostatic image also provided as part of the development system. A method for developing electrostatic image with magnetic toner is further disclosed, for example, involving the above-described development system. Magnetic toner particles having a low magnetic loading such as on the order of 28% by weight or less, based on the weight of the toner are further described wherein these magnetic toners can include a spacing agent on the surface of the magnetic toner particles. A developer is further disclosed which contains the magnetic toner particles of the present invention with hard magnetic carrier particles. Other developer compositions are also described.

摘要翻译： 公开了使用磁性调色剂显影的显影系统和方法。 本发明还公开了用于显影系统中的显影剂以及用于磁性墨水字符识别印刷的显影剂中的调色剂。 关于显影系统，公开了一种开发系统，其包括供应含有磁性调色剂颗粒和硬磁性载体颗粒的干燥显影剂混合物。 显影系统还包括用于在供应和显影区域之间输送显影剂的非磁性圆柱形壳体，其中壳体可旋转或静止。 具有预选磁场强度的旋转磁芯和用于至少旋转磁芯以提供将调色剂颗粒从外壳传送到静电图像的装置，还提供作为显影系统的一部分。 例如涉及上述显影系统的方法进一步公开了一种用磁性调色剂显影静电图像的方法。 进一步描述了基于调色剂的重量，具有低28重量％或更少的磁载荷的磁性调色剂颗粒，其中这些磁性调色剂可以在磁性调色剂颗粒的表面上包括间隔剂。 进一步公开了含有本发明的磁性调色剂颗粒与硬磁性载体颗粒的显影剂。 还描述了其它显影剂组合物。

公开(公告)号：US06562533B2

公开(公告)日：2003-05-13

申请号：US09944880

申请日：2001-08-31

申请人： Ulrich Meisen

发明人： Ulrich Meisen

IPC分类号： G03G9083

CPC分类号： C01G49/08 ,  C01P2004/62 ,  C01P2006/11 ,  C01P2006/12 ,  C01P2006/42

摘要： This invention relates to magnetite particles with a mean particle size of 0.1 to 0.3 &mgr;m, a specific surface area of 6 to 9 m2/g, a coercive force of 80 to 110 Oe, a residual magnetization of 13 to 20 nTm3/g, a pH of 7 to 10 and a bulk density of 0.6 to 0.9 g/cm3, by heating an aqueous solution of an alkaline component under inert gas, to a precipitation temperature of 65-85° C., adding iron (II) and iron (III) components and oxidizing the suspension with an oxidizing agent at a speed of 7-25 mol % Fe (II)/h.

公开(公告)号：US06479204B1

公开(公告)日：2002-11-12

申请号：US09586337

申请日：2000-06-02

申请人： Osamu Uchinokura ,  Tomio Kondou

发明人： Osamu Uchinokura ,  Tomio Kondou

IPC分类号： G03G9083

CPC分类号： G03G9/097 ,  G03G9/0821 ,  G03G9/091

摘要： A magnetic toner with a negative polarity for developing latent electrostatic images is made of toner particles, each toner particle containing a binder resin, a magnetic powder, and a charge control agent, the surface of the magnetic toner satisfying the relationship of 2×10−7≦C/Sw≦10×10−7, provided C≦8×10−3, wherein C is an amount (g/g) of the charge control agent dissolved in a solvent comprising water and methanol, and Sw is a specific surface area (cm2/cm3) of the toner particles determined from a weight-average particle diameter of the toner particles. An image forming apparatus has an electrostatic image bearing member, and a unit for developing the electrostatic image with the above magnetic toner, the unit having a developer holding member provided with a magnet, and a developer container. A method for measuring the amount of a charge control agent extracted from the surface of magnetic toner particles employs an aqueous alcohol solvent of water and an alcohol.

摘要翻译： 具有负极性用于显影静电图像的磁性调色剂由调色剂颗粒，每个调色剂颗粒含有粘合剂树脂，磁性粉末和电荷控制剂构成，磁性调色剂的表面满足2×10-7 < = C / Sw <= 10×10 -7，条件是C <= 8×10 -3，其中C是溶解在包含水和甲醇的溶剂中的电荷控制剂的量（g / g），Sw是比表面积 cm 2 / cm 3），由调色剂颗粒的重均粒径确定。 图像形成装置具有静电图像承载部件和用于利用上述磁性调色剂显影静电图像的单元，该单元具有设置有磁体的显影剂保持部件和显影剂容器。 用于测量从磁性调色剂颗粒的表面提取的电荷控制剂的量的方法采用水和醇的醇水溶剂。

公开(公告)号：US06395443B2

公开(公告)日：2002-05-28

申请号：US09725276

申请日：2000-11-29

申请人： Noboru Kuroda ,  Tomoyuki Satoh ,  Yasushi Nakamura ,  Nobutaka Kinoshita ,  Masahiro Kawamoto ,  Shigeru Emoto ,  Osamu Kouzu

发明人： Noboru Kuroda ,  Tomoyuki Satoh ,  Yasushi Nakamura ,  Nobutaka Kinoshita ,  Masahiro Kawamoto ,  Shigeru Emoto ,  Osamu Kouzu

IPC分类号： G03G9083

CPC分类号： G03G9/0819 ,  G03G9/081

摘要： A toner for developing an electrostatic image, including a binder, a coloring agent and a charge controlling agent. When that portion of the toner which has a particle diameter of 5.04 &mgr;m or less accounts for 15-60% of the total number N of the toner, that portion of the toner which provides a number average particle diameter of 4.0 to 4.5 &mgr;m has such a content C1% by weight of the charge controlling agent that gives a ratio of C1/CT of 1.00 to 1.10, where CT is a total amount, in terms of % by weight, of the charge controlling agent in the toner. When that portion of the toner which has a particle diameter of 5.04 &mgr;m or less accounts for 15% or less of the total number N, that portion of the toner which provides a number average particle diameter of 4.2 to 4.8 &mgr;m has such a content C2% by weight of the charge controlling agent that gives a ratio of C2/CT of 1.02 to 1.15.

摘要翻译： 用于显影静电图像的调色剂，包括粘合剂，着色剂和电荷控制剂。 当粒径为5.04μm或更小的调色剂部分占调色剂总数N的15-60％时，提供数均粒径为4.0至4.5μm的调色剂部分具有这样的 电荷控制剂的C1重量％，其C1 / CT的比例为1.00至1.10，其中CT是调色剂中电荷控制剂的总重量的总量。 当粒径为5.04μm或更小的调色剂部分占总数N的15％以下时，提供数均粒径为4.2〜4.8μm的调色剂部分的含量为C2 电荷控制剂的重量％，其给出C2 / CT比为1.02至1.15。

公开(公告)号：US06803164B2

公开(公告)日：2004-10-12

申请号：US10238782

申请日：2002-09-11

申请人： Yuichi Mizoo ,  Tadashi Dojo ,  Nene Shibayama ,  Yusuke Hasegawa

发明人： Yuichi Mizoo ,  Tadashi Dojo ,  Nene Shibayama ,  Yusuke Hasegawa

IPC分类号： G03G9083

CPC分类号： G03G9/0834 ,  G03G9/0819 ,  G03G9/0827 ,  G03G9/0833 ,  G03G9/0835 ,  G03G9/0838

摘要： A magnetic black toner comprising magnetic black toner particles containing at least a binder resin and a magnetic material. The toner has a weight-average particle diameter of from 5 &mgr;m to 12 &mgr;m, and the toner has, in its particles of 3 &mgr;m or more in diameter, at least 90% by number of particles with a circularity of 0.900 or more and has an average circularity of from 0.940 to 0.970. The magnetic material comprises iron oxide particles which have an average particle diameter of from 0.10 &mgr;m to 0.30 &mgr;m, contain titanium or a titanium compound in an amount of from 0.3% by weight to 1.5% by weight in terms of titanium, based on the total weight of the iron oxide particles, and have the ratio of the proportion of FeO to the total Fe content in 10% by weight from the particle surface, A %, to the proportion of FeO to the total Fe content in the remainder 90% by weight, B %, which satisfies the expression: 0.7≦A/B≦1.0. Also, an inorganic fine powder is externally added to the toner particle surfaces.

摘要翻译： 一种包含至少含有粘合剂树脂和磁性材料的磁性黑色调色剂颗粒的磁性黑色调色剂。 调色剂的重均粒径为5〜12μm，调色剂的直径为3μm以上的颗粒的至少90个数量的圆形度为0.900以上的颗粒，并且具有 平均圆形0.940至0.970。 磁性材料包含平均粒径为0.10μm至0.30μm的氧化铁颗粒，以钛为基准，钛或钛化合物的含量为0.3重量％至1.5重量％，基于总计 氧化铁颗粒的重量，并且FeO与总Fe含量的比例为10重量％，从颗粒表面的A％与FeO的总Fe含量之比为90％，余量为90％ 重量，B％，满足表达式：0.7 <= A / B <= 1.0。 此外，无机细粉末外部添加到调色剂颗粒表面。

公开(公告)号：US06766136B2

公开(公告)日：2004-07-20

申请号：US10403539

申请日：2003-03-31

申请人： Thomas A. Jadwin ,  John F. Crichton ,  Robert D. Fields ,  Eric C. Stelter

发明人： Thomas A. Jadwin ,  John F. Crichton ,  Robert D. Fields ,  Eric C. Stelter

IPC分类号： G03G9083

CPC分类号： B82Y15/00 ,  G03G9/083 ,  G03G9/097 ,  G03G9/09708 ,  G03G9/09733 ,  G03G13/09 ,  G03G2215/0013

摘要： Development systems and methods for developing using magnetic toner are disclosed. The present invention further discloses developers used in development systems as well as the toner used in developer for magnetic ink character recognition printing. With respect to the development system, a development system is disclosed which includes a supply of dry developer mixture which contains magnetic toner particles and hard magnetic carrier particles. The development system further includes a non-magnetic, cylindrical shell for transporting the developer between the supply and the development zone, wherein the shell can be rotatable or stationary. A rotating magnetic core of a pre-selected magnetic field strength and means for rotating at least the magnetic core to provide for the transport of the toner particles from the shell to an electrostatic image also provided as part of the development system. A method for developing electrostatic image with magnetic toner is further disclosed, for example, involving the above-described development system. Magnetic toner particles having a low magnetic loading such as on the order of 28% by weight or less, based on the weight of the toner are further described wherein these magnetic toners can include a spacing agent on the surface of the magnetic toner particles. A developer is further disclosed which contains the magnetic toner particles of the present invention with hard magnetic carrier particles. Other developer compositions are also described.

摘要翻译： 公开了使用磁性调色剂显影的显影系统和方法。 本发明还公开了用于显影系统中的显影剂以及用于磁性墨水字符识别印刷的显影剂中的调色剂。 关于显影系统，公开了一种开发系统，其包括供应含有磁性调色剂颗粒和硬磁性载体颗粒的干燥显影剂混合物。 显影系统还包括用于在供应和显影区域之间输送显影剂的非磁性圆柱形壳体，其中壳体可旋转或静止。 具有预选磁场强度的旋转磁芯和用于至少旋转磁芯以提供将调色剂颗粒从外壳传送到静电图像的装置，还提供作为显影系统的一部分。 例如涉及上述显影系统的方法进一步公开了一种用磁性调色剂显影静电图像的方法。 进一步描述了基于调色剂的重量，具有低28重量％或更少的磁载荷的磁性调色剂颗粒，其中这些磁性调色剂可以在磁性调色剂颗粒的表面上包括间隔剂。 进一步公开了含有本发明的磁性调色剂颗粒与硬磁性载体颗粒的显影剂。 还描述了其它显影剂组合物。

公开(公告)号：US06653037B2

公开(公告)日：2003-11-25

申请号：US09988142

申请日：2001-11-19

申请人： Toyoshi Sawada ,  Masanori Suzuki ,  Kohki Katoh ,  Yohichiroh Watanabe ,  Masahide Yamashita ,  Akihiro Kotsugai ,  Keiko Shiraishi

发明人： Toyoshi Sawada ,  Masanori Suzuki ,  Kohki Katoh ,  Yohichiroh Watanabe ,  Masahide Yamashita ,  Akihiro Kotsugai ,  Keiko Shiraishi

IPC分类号： G03G9083

CPC分类号： B82Y15/00 ,  G03G9/0819 ,  G03G9/0821 ,  G03G9/0823 ,  G03G9/0833 ,  G03G9/0835 ,  G03G9/0836 ,  G03G9/08782 ,  G03G9/0902 ,  G03G9/0904 ,  G03G9/09708 ,  G03G9/09716 ,  G03G9/09725

摘要： A toner for developing latent electrostatic images is provided which contains, in a binder resin, at least a coloring agent formed from a metal material. A saturation magnetization of the toner is 0.01 to 10 emu/g, and a true specific gravity thereof is 1.33 to 1.62 g/m3. Also provided are an electrostatic charge image developer containing the toner for developing latent electrostatic images, an image forming device, and an image forming method using the toner for developing latent electrostatic images.

摘要翻译： 提供了用于显影静电图像的调色剂，其在粘合剂树脂中至少含有由金属材料形成的着色剂。 调色剂的饱和磁化强度为0.01〜10emu / g，真比重为1.33〜1.62g / m 3。 还提供了含有用于显影静电潜像的调色剂的静电电荷图像显影剂，图像形成装置和使用用于显影静电潜像的调色剂的图像形成方法。