IMPROVED METHOD FOR BUMP EXPOSING RELIEF IMAGE PRINTING PLATES
    7.
    发明公开
    IMPROVED METHOD FOR BUMP EXPOSING RELIEF IMAGE PRINTING PLATES 审中-公开
    VERBESSERTES VERFAHRENFÜRHÜGELBELICHTUNGSRELIEF-BILDDRUCKPLATTEN

    公开(公告)号:EP1769285A4

    公开(公告)日:2011-10-19

    申请号:EP05750599

    申请日:2005-05-16

    IPC分类号: G03C1/76 G03F7/16 G03F7/20

    摘要: A process of producing a relief image printing plate, the process comprising the steps of providing a photosensitive printing element, quenching dissolved oxygen in the photosensitive resin layer by pre-exposing the photosensitive layer to one or more sources of actinic radiation, wherein the range of wavelengths spanned by the one or more sources of actinic radiation differs by no more than about 20 nm, and imagewise exposing the photosensitive resin layer to actinic radiation to crosslink and cure the photosensitive resin layer. The photosensitive composition typically comprises at least one photoinitiator that is present in the photosensitive composition in an amount sufficient to provide an optical density in the photosensitive composition of between about 0.05 and 0.43 at a wavelength used to pre-expose the photosensitive composition.

    摘要翻译: 一种制造浮雕图像印版的方法,该方法包括以下步骤:提供感光印刷元件,通过将感光层预曝光到一种或多种光化辐射源来使溶解氧在感光性树脂层中淬火,其中, 由一种或多种光化辐射源所跨越的波长不超过约20nm,并将感光性树脂层成像曝光于光化辐射以使感光性树脂层交联和固化。 感光组合物通常包含光敏组合物中存在的至少一种光引发剂,其量足以在光敏组合物预先曝光的波长下在光敏组合物中提供约0.05至0.43的光密度。