Dry planographic printing plate and preparation thereof
    3.
    发明授权
    Dry planographic printing plate and preparation thereof 失效
    干版印刷版及其制备

    公开(公告)号:US4342820A

    公开(公告)日:1982-08-03

    申请号:US215100

    申请日:1980-12-10

    IPC分类号: G03F7/022 G03F7/075 G03C1/68

    CPC分类号: G03F7/022 G03F7/0752

    摘要: Provided is a presensitized planographic printing master plate requiring no dampening water for use in negative work which comprises a base substrate, a light releasing photosensitive layer overlying the base substrate and a silicone rubber layer overlying the photosensitive layer. When the printing master plate is exposed through a negative film and then treated with a developer, only the silicone rubber layer overlying the exposed photosensitive layer is removed, while the photosensitive layer remains as it is to form an image area. Dampening water is not required when printing is carried out.

    摘要翻译: 提供了一种不需要用于负面工作的润版水的预觉平版印刷母版,其包括基底基板,覆盖基底基板的光释放感光层和覆盖在感光层上的硅橡胶层。 当印刷母板通过负片曝光,然后用显影剂处理时,仅去除覆盖曝光的感光层的硅橡胶层,同时感光层保持原状以形成图像区域。 打印时不需要防潮水。