Process for producing lithographic printing plate, photosensitive plate and aqueous ink composition therefor
申请人:Nippon Paint Co., Ltd.
公开号:EP0509514A1
公开(公告)日:1992-10-21
The present invention provides an improvement of the direct lighographic printing plate making process using ink-jet printing, which provides a printing plate having excellent resolution. Accordingly, the present invention provides an improvement of a process for producing a lithographic printing plate comprising selectively forming a light transmittable oxygen barrier film on a photopolymerizable layer of a photosensitive plate, exposing to light and then removing uncured portion on which the oxygen barrier film is not covered, wherein a protective layer which is capable of transmitting oxygen gas and the light to cure the photopolymerizable layer is formed on the photopolymerizable layer, a photosensitive plate therefor and an aqueous ink composition therefor.
本发明提供了一种使用喷墨印刷的直接平版印刷制版工艺的改进,该工艺可提供分辨率极佳的印版。因此,本发明提供了一种平版印刷板制作工艺的改进,该工艺包括在感光板的可感光聚合层上选择性地形成一层可透光的氧气阻隔膜,将其暴露在光线下,然后去除其上未覆盖氧气阻隔膜的未固化部分,其中在可感光聚合层上形成一层保护层,该保护层能够透射氧气和光线以固化可感光聚合层、感光板及其水性油墨组合物。