PHOTOSENSITIVE RESIN COMPOSITION FOR FLEXOGRAPHIC PRINTING HAVING EXCELLENT SOLVENT RESISTANCE
申请人:Nippon Soda Co., Ltd.
公开号:EP2418543A1
公开(公告)日:2012-02-15
It is to provide a photosensitive resin composition for flexographic printing having excellent resistance to an ink comprising an organic solvent and an emulsion ink used in flexographic printing, for example, a UV-curable ink or an ink using a vegetable oil or light naphtha and having excellent suitability for printing applications such as image reproducibility and print durability. The photosensitive resin composition for flexographic printing according to the present invention comprises, at least, (a) one or more thermoplastic elastomers, (b) an acrylic-terminated liquid polybutadiene containing 1,2-bonds in an amount of 80% or more, (c) a photopolymerizable unsaturated monomer having at least one or more ethylenically unsaturated groups, and (d) a photopolymerization initiator.
本发明旨在提供一种柔性版印刷用感光树脂组合物,该组合物对柔性版印刷中使用的由有机溶剂和乳剂油墨(例如紫外线固化油墨或使用植物油或轻石脑油的油墨)组成的油墨具有极佳的耐受性,并且在图像再现性和印刷耐久性等印刷应用方面具有极佳的适用性。根据本发明,用于柔版印刷的感光树脂组合物至少包括:(a) 一种或多种热塑性弹性体;(b) 含有 80% 或更多 1,2 键的丙烯酸封端液态聚丁二烯;(c) 具有至少一个或多个乙烯基不饱和基团的可光聚合不饱和单体;(d) 光聚合引发剂。