Process for fabricating gravure printing plate blank
    2.
    发明授权
    Process for fabricating gravure printing plate blank 失效
    凹版印刷板坯制造工艺

    公开(公告)号:US4405709A

    公开(公告)日:1983-09-20

    申请号:US249403

    申请日:1981-03-31

    CPC分类号: G03F5/20 B41N1/06

    摘要: A reusable gravure printing plate or cylinder blank which can be readily processed into a printing plate or cylinder carrying an image to be printed. The blank comprises a non-etchable, wear-resistant layer, as of chromium, overlying at least the surface of a base, and a multiplicity of minute dot-like etchable portions, as of copper, which are of equal size and uniform placement, and which are formed at least in and isolated from each other by the non-etchable layer. The etchable portions are formed flush with the non-etchable layer. For preparation of a gravure printing plate or cylinder from this blank an etching operation is performed on the blank through a prepared etching resist, as with the use of a ferric chloride solution. The etchant forms ink-retaining cells in the etchable portions of the blank.

    摘要翻译: 可重复使用的凹版印刷版或气缸盖,其可以容易地加工成承载要印刷的图像的印版或滚筒。 该坯料包括至少覆盖在基底表面上的至少为铬的不可蚀刻的耐磨层,以及大致相同尺寸和均匀放置的铜的多个微小点状可蚀刻部分, 并且其通过不可蚀刻层至少形成并彼此隔离。 可蚀刻部分与不可蚀刻层齐平地形成。 为了从该坯料制备凹版印刷板或圆筒,通过使用氯化铁溶液,通过制备的抗蚀剂对坯料进行蚀刻操作。 蚀刻剂在坯料的可蚀刻部分中形成油墨保留单元。