申请人:Nippon Paint Co., Ltd.
公开号:EP0859284A1
公开(公告)日:1998-08-19
The present invention provides a water-developable photosensitive composition capable of providing a flexographic printing plate with a satisfactory shelf life, excellent water developability, water resistance, ink resistance and aging resistance, as well as an adequate impact resilience necessary for a high evenness of the reproduced image, and a production process thereof.
A water-developable photosensitive composition comprising (A) a thermoplastic elastic polymer, (B) an ionic group- and photopolymerizable double bond-containing hydrophilic polymer, (C) a crosslinking particulate resin having an ionic group capable of forming an ion pair with said polymer (B), and (D) a photopolymerization initiator.
本发明提供了一种可用水显影的感光组合物,该组合物能够提供具有令人满意的保质期、优异的水显影性、耐水性、耐油墨性和耐老化性,以及再现图像的高均匀性所需的足够的冲击回弹力的柔性版印刷板,并提供了其生产工艺。
一种水显影感光组合物,包括 (A) 热塑性弹性聚合物,(B) 含离子基团和可光聚合双键的亲水性聚合物,(C) 具有能与所述聚合物 (B) 形成离子对的离子基团的交联微粒树脂,以及 (D) 光聚合引发剂。