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公开(公告)号:US4837122A
公开(公告)日:1989-06-06
申请号:US127475
申请日:1987-12-02
申请人: Toshiro Kondo , Eiji Kanada , Hiroshi Nishinoiri
发明人: Toshiro Kondo , Eiji Kanada , Hiroshi Nishinoiri
IPC分类号: G03F7/26 , B41N3/08 , F16F15/12 , F16F15/134 , F16F15/139 , G03F7/00 , G03F7/06 , G03F7/07 , G03F7/40
摘要: This invention provides a method for deleting images formed on offset printing plates which comprises treating the surface of undesired portion of the images formed by exposure and development with a deletion fluid which contains a ferric complex salt of an organic acid and 0.3 mol/liter or more of at least one compound selected from the group consisting of a soluble bromide and a soluble iodide. Preferred ferric complex salt is a ferric complex salt of aminopolycarboxylic acid.
摘要翻译: 本发明提供了一种删除胶版印刷版上形成的图像的方法,其中包括用含有有机酸的铁配合盐和0.3mol / l以上的缺锌液的处理由曝光和显影形成的图像的不需要部分的表面 的至少一种选自可溶性溴化物和可溶性碘化物的化合物。 优选的铁配合盐是氨基多羧酸的铁配合盐。