公开(公告)号：EP1722275A1

公开(公告)日：2006-11-15

申请号：EP05103879.2

申请日：2005-05-10

申请人： AGFA-GEVAERT N.V.

发明人： Gries, Willi - Kurt ,  Van Damme, Marc c/o AGFA-GEVAERT, Corp IP ,  Boxhorn, Mario, c/o AGFA-GEVAERT, Corp. IP ,  Meeus, Pascla c/o AGFA-GEVAERT, Corp. IP

IPC分类号： G03F7/32

CPC分类号： G03F7/322

摘要： The invention relates to a method of making a lithographic printing plate comprising the steps of providing a photopolymer printing plate precursor that is photopolymerizable upon absorption of light in the wavelength range from 300 to 700 nm, exposing said printing plate precursor with light in the range from 300 to 700 nm and processing said exposed precursor with an aqueous alkaline developer, characterized in that the alkaline developer comprises a polyethyleneoxide/polypropyleneoxide surfactant having a specific composition. The method leads to less depositions in the developing apparatus and on the processed printing plates and the developer used has an increased sedimentation stability.

摘要翻译： 本发明涉及一种制备平版印刷版的方法，该方法包括以下步骤：提供在吸光度在300至700nm波长范围内可光聚合的光聚合物印版前体，将所述印版前体用 300至700nm，并用含水碱性显影剂处理所述暴露的前体，其特征在于碱性显影剂包含具有特定组成的聚环氧乙烷/聚丙烯氧化物表面活性剂。 该方法导致显影装置和加工印刷版上的沉积少，并且所使用的显影剂具有增加的沉降稳定性。