申请人:Fujifilm Corporation
公开号:EP2383612A1
公开(公告)日:2011-11-02
To provide a lithographic printing plate precursor which is capable of undergoing image recording with laser light and on-press development or development with an aqueous solution having pH of 11 or less, is excellent in developing property after the passage of time, and exhibits high printing durability and good stain resistance after the passage of time, the invention is directed to a lithographic printing plate precursor comprising a support and an image-recording layer containing (A) a polymerization initiator, (B) a sensitizing dye and (C) a polymerizable compound, wherein the image-recording layer or an undercoat layer which is optionally provided between the support and the image-recording layer contains (D) a polymer compound containing (a1) a repeating unit having a side chain having a zwitter ion structure, (a2) a repeating unit having a side chain having a polyoxyalkylene structure and (a3) a repeating unit having a side chain having a structure capable of interacting with a surface of the support.
为了提供一种平版印刷板前体,该前体能够用激光进行图像记录,并能用 pH 值为 11 或以下的水溶液进行印刷显影或显影,经过一段时间后显影性能优异,并且经过一段时间后印刷耐久性高且抗污性好,本发明涉及一种平版印刷板前体,该前体包括支撑物和图像记录层,支撑物和图像记录层中含有 (A) 聚合引发剂,(B) 感光染料和 (C) 可聚合化合物、(A) 聚合引发剂;(B) 感光染料;(C) 可聚合化合物;其中,图像记录层或可选择设置在支撑层和图像记录层之间的底涂层包含 (D) 聚合物,该化合物含有 (a1) 具有具有齐聚物离子结构的侧链的重复单元;(a2) 具有具有聚氧亚烷基结构的侧链的重复单元;(a3) 具有能够与支撑层表面相互作用的结构的侧链的重复单元。