Photosensitive member for electrophotography containing trisazo pigment
having pyridylene group in its central skeleton
    1.
    发明授权
    Photosensitive member for electrophotography containing trisazo pigment having pyridylene group in its central skeleton 失效
    用于电子照相的感光构件,其含有在其中心骨架中具有亚吡啶基的三偶氮颜料

    公开(公告)号:US4810607A

    公开(公告)日:1989-03-07

    申请号:US73221

    申请日:1987-07-14

    IPC分类号: C09B35/378 G03G5/06

    CPC分类号: C09B35/378 G03G5/0688

    摘要: A photosensitive member for electrophotography comprises a photosensitive layer containing a trisazo pigment represented by the formula: ##STR1## wherein Ar.sub.1 is a pyridylene group capable of having a substituent; Ar.sub.2 and Ar.sub.3 are respectively a pyridylene group or an arylene group each capable of having a substituent; and A is a coupler residue having a phenolic OH group. Because the trisazo pigment has a characteristic central skeleton including the central nitrogen atom and an adjacent pyridylene group, the photosensitive member has a sensitivity region expanded to the near-infrared region and shows a stable charging characteristic during a continuous electrophotographic operation.

    摘要翻译: 用于电子照相术的感光构件包括含有由下式表示的三偶氮颜料的光敏层:其中Ar 1是能够具有取代基的亚吡啶基; Ar 2和Ar 3分别是可以具有取代基的亚吡啶基或亚芳基; A是具有酚OH基团的成色剂残基。 由于三偶氮颜料具有包括中心氮原子和相邻的亚吡啶基的特征性中心骨架,所以感光部件具有扩展到近红外区域的灵敏度区域,并且在连续电子照相操作期间显示出稳定的充电特性。