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    • 4. 发明申请
    • PROCESS FOR PRODUCING POLYMERIC TONER
    • 制备聚合物的方法
    • WO1998025186A1
    • 1998-06-11
    • PCT/JP1997004476
    • 1997-12-05
    • NIPPON ZEON CO., LTD.OTA, NobuyasuHASEGAWA, Jun
    • NIPPON ZEON CO., LTD.
    • G03G09/093
    • G03G9/09392
    • A process for producing a polymeric toner having a core/shell structure, which comprises: passing a core-forming polymerizable monomer composition comprising at least a core-forming polymerizable monomer and a colorant through a space between a rotor rotating at a high speed and a stator surrounding the rotor and having small openings or comb teeth in an aqueous dispersion medium containing a dispersion stabilizer to thereby form droplets of the composition; polymerizing the droplets to obtain core particles; and then polymerizing in the presence of the core particles a shell-forming polymerizable monomer capable of forming a polymer having a higher glass transition temperature than the polymer constituting the core particles to thereby form shells which are polymer layers with which the core particles are covered; a polymeric toner obtained by the process; a method of image forming using the toner; and an image-forming apparatus containing the toner.
    • 一种制备具有核/壳结构的聚合物调色剂的方法,其包括:通过高速旋转的转子和转速高的转子之间的空间使包含至少芯形成可聚合单体和着色剂的芯形成可聚合单体组合物通过 定子围绕转子并且在含有分散稳定剂的水性分散介质中具有小的开口或梳齿,从而形成组合物的液滴; 聚合液滴以获得核心颗粒; 然后在核心颗粒存在下聚合成能形成玻璃化转变温度高于构成核心颗粒的聚合物的聚合物的成壳聚合性单体,从而形成作为核颗粒被覆盖的聚合物层的壳体; 通过该方法获得的聚合物调色剂; 使用调色剂的成像方法; 以及含有调色剂的图像形成装置。
    • 8. 发明申请
    • IMAGE FORMING APPARATUS AND IMAGE FORMING METHOD
    • 图像形成装置和图像形成方法
    • WO1998006012A1
    • 1998-02-12
    • PCT/JP1997002734
    • 1997-08-06
    • NIPPON ZEON CO., LTD.MAKUTA, YoshihiroIMAI, Toyoko
    • NIPPON ZEON CO., LTD.
    • G03G15/08
    • G03G21/0064G03G5/043G03G9/0827
    • A toner image is formed on an electrophotograph photosensitive body by a developing means in which toner powder is stored. The toner image is transferred onto a transfer material and the image is outputted. The toner powder which remains on the electrophotograph photosensitive body after the transfer is recovered by the developing means which also functions as a cleaning means. The material of the surface of the electrophotograph photosensitive body is positive-chargeable organic photosensitive material which contains a phthalocyanine compound as a charge generating agent, a diphenoquinone compound as an electron transporting agent and a nitrogen-containing polyaromatic cyclic compound as a positive hole transporting agent. The toner powder has a sphericity which is calculated by dividing the area (Sc) of a circle whose diameter is the absolutely maximum length of the particles by the actual projection area (Sr) of the particles, within a range of 1.0-1.3 and is colored polymer particles produced by a suspension polymerization method.
    • 通过存储调色剂粉末的显影装置在电子照相感光体上形成调色剂图像。 将调色剂图像转印到转印材料上,并输出图像。 在转印之后保留在电子照相感光体上的调色剂粉末由也用作清洁装置的显影装置回收。 电子照相感光体的表面的材料是含有作为电荷发生剂的酞菁化合物,作为电子传输剂的二苯醌化合物和作为空穴传输剂的含氮多芳族环状化合物的正电荷性有机感光材料 。 调色剂粉末具有球形度,其通过将直径为粒子的绝对最大长度的圆的面积(Sc)除以粒子的实际投影面积(Sr)在1.0-1.3的范围内,并且为 通过悬浮聚合法制备的着色聚合物颗粒。