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1. 发明公开

EP0908305A1 A method for making positive working printing plates from a heat mode sensitive imaging element 有权
标题翻译：一种用于从wärmeempflindlichem图像记录材料制备正性工作印刷板的方法
公开(公告)号：EP0908305A1
公开(公告)日：1999-04-14
申请号：EP98203120.5
申请日：1998-09-16
申请人： AGFA-GEVAERT N.V.
发明人： Deroover, Geert , Vermeersch, Joan , Van Damme, Marc , Inventief, Pietertje
IPC分类号： B41C1/10 , B41M5/36
CPC分类号： B41C1/1016 , B41C2210/02 , B41C2210/06 , B41C2210/14 , B41C2210/22 , B41C2210/24 , B41C2210/262
摘要： According to the present invention there is provided a method for making lithographic printing plates including the following steps

a) preparing a heat mode imaging element having on a lithographic base with a hydrophilic surface a first layer including a polymer, soluble in an aqueous alkaline solution and a top layer on the same side of the lithographic base as the first layer which top layer is sensitive to IR-radiation and is unpenetrable for an alkaline developer containing SiO 2 as silicate;
b) exposing imagewise said heat mode imaging element to IR-radiation;
c) developing said imagewise exposed heat mode imaging element with said alkaline developer so that the exposed areas of the top layer and the underlying areas of the first layer are dissolved and the unexposed areas of the first layer remain undissolved characterized in that said top layer includes an IR-dye.
摘要翻译：。根据本发明，提供了一种制造平版印刷版包括如下步骤：a）制备具有在平版基与亲水性表面的第一层包括聚合物的热模式成像元件，可溶于在wässrige碱性溶液和方法对光刻基作为第一层的同一侧的顶层哪个顶层是于IR辐射敏感，并且是unpenetrable在碱性显影剂含有SiO 2作为硅酸盐; B）图像式曝光，所述热模式成像元件到红外辐射; c）与所述碱性显影剂显影所述成像曝光的热模式成像元件所以没有顶层的曝光区域和第一层的底层区域溶解和第一层的未曝光区域保持在该未溶解的特点，所述顶层包括的IR染料。

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