Negative-acting no-process printing plates
    82.
    发明授权
    Negative-acting no-process printing plates 失效
    负片无印刷版

    公开(公告)号:US6027857A

    公开(公告)日:2000-02-22

    申请号:US301502

    申请日:1999-04-28

    摘要: A photosensitive composition is prepared containing a polymer of the formula B(X)(Y) wherein B represents an organic backbone, each X independently is an acidic group or salt thereof and each Y independently is a photocurable group and a photoinitiating compound or compounds. Preferably, free-radically polymerizable multi-functional monomer and/or oligomer is added to the photosensitive composition. The photosensitive composition can be coated on a suitable substrate for planographic printing plate applications. Imagewise irradiation causes the light struck regions to photocure, becoming insoluble in aqueous and organic mediums, while the non-light struck regions remain highly soluble/dispersable. Printing plates of this construction do not require processing prior to being run on a press.

    摘要翻译: 制备含有式B(X)(Y)的聚合物的光敏组合物,其中B表示有机骨架,每个X独立地是酸性基团或其盐,并且每个Y独立地是光固化基团和光引发化合物或化合物。 优选地,将可自由基聚合的多官能单体和/或低聚物加入到感光组合物中。 感光组合物可以涂布在用于平版印刷版应用的合适的基底上。 成像照射导致光刺激区域光固化,变得不溶于含水和有机介质,而非光泽区域保持高度可溶/可分散。 这种结构的印版不需要在印刷机上运行之前加工。