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    • 1. 发明授权
    • Toners for developing electrostatic latent images, developers for
electrostatic latent images and methods for forming images
    • 用于显影静电潜像的调色剂,用于静电潜像的显影剂和用于形成图像的方法
    • US6150062A
    • 2000-11-21
    • US203596
    • 1998-12-02
    • Yutaka SugizakiHirokazu Hamano
    • Yutaka SugizakiHirokazu Hamano
    • G03G9/08G03G9/09G03G13/01
    • G03G9/092G03G9/0819
    • A toner for developing an electrostatic latent image includes at least coloring particles containing a colorant and a binder resin. The volume average particle size of the coloring particle is 1.0 to 5.0 .mu.m. The toner is further characterized in that (1) the relationship between the quantity of the electric charge and the particle size is adjusted appropriately, (2) the particle size distribution is adjusted appropriately and/or (3) an external additive comprising at least an ultra microparticle and a super-ultra microparticle may be added, the rate of coating on the coloring particle being adjusted appropriately. A method for forming an image includes (1) a developing step in which a toner layer is formed on the surface of a developer support arranged opposed to a latent image support and an electrostatic latent image on the latent image support is developed with the toner layer to obtain a toner image and (2) a transfer step in which the toner image formed is transferred to a transfer material. The Rz of at least an image receiving region of the transfer material provided for the transfer step is preferably 10 .mu.m or less.
    • 用于显影静电潜像的调色剂至少包含含有着色剂和粘合剂树脂的着色颗粒。 着色粒子的体积平均粒径为1.0〜5.0μm。 调色剂的特征还在于:(1)适当调整电荷量与粒径之间的关系,(2)适当调整粒度分布和/或(3)包含至少一种 可以添加超微粒子和超超微粒子,适当调整着色粒子上的涂布速度。 一种形成图像的方法包括(1)显影步骤,其中在与潜像载体相对布置的显影剂载体的表面上形成调色剂层,并且潜像载体上的静电潜像与调色剂层一起显影 以获得调色剂图像和(2)转印步骤,其中形成的调色剂图像转印到转印材料上。 为转印步骤提供的转印材料的至少一图像接收区域的Rz优选为10μm以下。
    • 2. 发明授权
    • Black toner for developing electrostatic latent image
    • 用于显影静电潜像的黑色调色剂
    • US6120959A
    • 2000-09-19
    • US386375
    • 1999-08-31
    • Yutaka SugizakiHirokazu Hamano
    • Yutaka SugizakiHirokazu Hamano
    • G03G9/08G03G9/09G03G9/00
    • G03G9/0904
    • A black toner for developing electrostatic latent images having colored particles and external additive(s) and the colored particles containing at least a binder resin, carbon black, a cyan pigment, a magenta pigment, and a yellow pigment. The concentration (C.sub.CB weight %) of carbon black, the concentration (C.sub.C weight %) of the cyan pigment, the concentration (C.sub.M weight %) of the magenta pigment, and the concentration (C.sub.Y weight %) of the yellow pigment in the colored particles preferably satisfy the following relationship (1);C.sub.CB .gtoreq.C.sub.M .gtoreq.C.sub.C .gtoreq.C.sub.Y ( 1).The black toner has the charging property, etc., suitable for forming black images and a high black density without showing color rendering.
    • 用于显影具有着色颗粒和外部添加剂的静电潜像的黑色调色剂和至少含有粘合剂树脂,炭黑,青色颜料,品红色颜料和黄色颜料的着色颗粒。 炭黑的浓度(CCB重量%),青色颜料的浓度(CC重量%),品红色颜料的浓度(CM重量%)和黄色颜料的浓度(CY重量%)在着色 颗粒优选满足以下关系式(1); CCB> / = CM> / = CC> / = CY(1)。黑色调色剂具有充电性能等适合于形成黑色图像和高黑色密度而不显示 显色。
    • 3. 发明授权
    • Image forming method
    • 图像形成方法
    • US06171747B2
    • 2001-01-09
    • US09386368
    • 1999-08-31
    • Yutaka SugizakiHirokazu Hamano
    • Yutaka SugizakiHirokazu Hamano
    • G03G1316
    • G03G9/097G03G9/0823G03G9/09G03G13/09
    • Provided is an image forming method including at least a latent image-forming step of forming an electrostatic latent image on a latent image support, a developer layer-forming step of forming a developer layer on a surface of a developer support disposed opposite the latent image support, a developing step of developing the electrostatic latent image on the latent image support with the toner in the developer layer to form a toner image, and a transferring step of transferring the toner image onto a transfer material, characterized in that the latent image support is obtained by forming at least an organic photoconductive layer on a surface of an electroconductive support, the toner is composed of color particles containing at least a binder resin and a coloring agent, a volume average particle diameter of the color particles is between 2.0 and 5.0 &mgr;m, the ratio of the color particles of 1.0 &mgr;m or less is 20% or less in terms of the number of distribution, and the ratio of the color particles exceeding 5.0 &mgr;m is 10% or less in terms of the number of distribution, and the coloring agent is pigment particles. The invention provides the image forming method which can give an image excellent in the fine line reproducibility and the gradation without the disorder of the image and which can suppress deterioration of the latent image support owing to damage or wearing-out of the surface of the latent image support having the organic photoconductive layer.
    • 提供了一种图像形成方法,其至少包括在潜像载体上形成静电潜像的潜像形成步骤,在与潜像相对设置的显影剂载体的表面上形成显影剂层的显影剂层形成步骤 支撑,显影步骤,用显影剂层中的调色剂在潜像载体上显影静电潜像,以形成调色剂图像;以及转印步骤,将调色剂图像转印到转印材料上,其特征在于,潜像载体 通过在导电性支持体的表面上形成至少有机光电导层而获得,调色剂由至少含有粘合剂树脂和着色剂的着色粒子构成,着色粒子的体积平均粒径为2.0〜5.0 妈妈,1.0μm以下的着色粒子的比例为分散数的20%以下,颜色的比例 超过5.0μm的颗粒的分布数量为10%以下,着色剂为颜料颗粒。本发明提供了能够使细线再现性和灰度无差异的图像赋予图像的图像形成方法 该图像并且可以抑制由于具有有机光电导层的潜像载体的表面的损坏或磨损而导致的潜像支持体的劣化。
    • 4. 发明授权
    • Image forming method
    • 图像形成方法
    • US6096463A
    • 2000-08-01
    • US386342
    • 1999-08-31
    • Hirokazu HamanoYutaka Sugizaki
    • Hirokazu HamanoYutaka Sugizaki
    • G03G9/08G03G9/09G03G13/20G03G15/01G03G15/08G03G15/20G03G13/01
    • G03G9/0821G03G13/20G03G9/09G03G9/0906
    • An image forming method including developing an electrostatic latent image formed on an electrostatic latent image carrier with a toner containing colored particles comprised of at least a binder resin and a coloring agent to form a toner image, transferring the toner image to a transfer material to form a transferred image, and fixing the transferred image on the transfer material, wherein the toner is made up of at least a binder resin and colored particles containing a coloring agent, the volume mean particle size of the colored particles is from 2.0 to 5.0 .mu.m, the colored particles of 1.0 .mu.m or smaller are 20 number % or lower, and the colored particles of 5.0 .mu.m or larger are 10 number % or lower. The image forming method has a high reproducibility of fine lines and forms an image of a high quality without forming uneven gloss in the image and between the image area and the non-image area and without causing problems such as offset and paper clogging.
    • 一种图像形成方法,包括使含有由至少粘合剂树脂和着色剂组成的着色颗粒的调色剂在静电潜像载体上形成的静电潜像显影以形成调色剂图像,将调色剂图像转印到转印材料上形成 转印图像,并将转印图像固定在转印材料上,其中调色剂由至少粘合剂树脂和含有着色剂的着色颗粒组成,着色颗粒的体积平均粒径为2.0-5.0μm 1.0μm以下的着色粒子为20个数%以下,5.0μm以上的着色粒子为10个数%以下。 图像形成方法具有高精细线的再现性,并且形成高质量的图像,而不会在图像中以及图像区域和非图像区域之间形成不均匀的光泽,并且不会引起诸如偏移和纸张堵塞的问题。