Polymerizable composition and negative-working planographic printing plate precursor using the same
申请人:FUJI PHOTO FILM CO., LTD.
公开号:EP1391784A2
公开(公告)日:2004-02-25
The invention provides a polymerizable composition comprising: a binder polymer containing at least an acid group having an acid dissociation constant (pKa) of 5.5 or more and a radical addition polymerizable group, and a radical-generating compound capable of generating a radical with light or heat. Further, the invention provides a negative-working planographic printing plate precursor which has a recording layer containing the polymerizable composition. Use of the polymerizable composition of the invention provides a planographic printing plate precursor that is capable of forming high-guality images free from stains in non-image portions, and further has high strength in formed image portions and excellent printing endurance.
本发明提供了一种可聚合组合物,该组合物包括:至少含有一个酸解离常数(pKa)为 5.5 或以上的酸基和一个可自由基加成聚合基团的粘合剂聚合物,以及一种能够利用光或热产生自由基的自由基生成化合物。此外,本发明还提供了一种底片工作平版印刷板前体,其记录层含有可聚合组合物。使用本发明的可聚合组合物可提供一种平版印刷板原版,该原版能够形成高像质图像,非图像部分无污点,而且在形成的图像部分具有高强度和出色的印刷耐久性。