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    • 1. 发明授权
    • Process for producing lithographic printing plate
    • 平版印刷版生产工艺
    • US06207332B1
    • 2001-03-27
    • US08988282
    • 1997-12-10
    • Takao NakayamaShigeyuki DanRyousuke ItakuraHideyuki HattoriHiroshi Tashiro
    • Takao NakayamaShigeyuki DanRyousuke ItakuraHideyuki HattoriHiroshi Tashiro
    • G03G1302
    • G03G13/28G03G5/10G03G13/02Y10S430/102
    • A process for producing a lithographic printing plate which is inexpensive, is not elongated, can be readily handled and can provide a uniform image, is disclosed. The process comprises the steps of: using an original plate for lithographic printing comprising a support having a volume electric resistance of more than 1×1010 &OHgr;·cm, a conductive layer having a volume electric resistance of 1×105 &OHgr;·cm or less, provided on one surface of the support, and a photoconductive layer containing zinc oxide and a binder, provided on the conductive layer, conducting negative corona discharge from the side of the photoconductive layer of the original plate for lithographic printing, and during this corona discharge, contacting a conductor having earth potential with at least the support of the original plate, thereby charging the photoconductive layer of the original plate for lithographic printing.
    • 公开了一种制造廉价的未拉伸的平版印刷版的方法,可以容易地处理并且可以提供均匀的图像。 该方法包括以下步骤:使用原版平版印刷,其中包括体积电阻大于1×10 10欧米汞厘米的载体,具有体积电阻为1×10 5欧姆·厘米或更小的导电层,设置在一个表面上 的载体和包含氧化锌和粘合剂的光电导层,设置在导电层上,从用于平版印刷的原版的光电导层侧进行负电晕放电,并且在该电晕放电期间,接触具有接地的导体 至少具有原版支撑的电位,从而对原版的光电导层充电以进行平版印刷。