申请人:Konica Minolta IJ Technologies, Inc.
公开号:EP2236568A1
公开(公告)日:2010-10-06
Provided is an actinic energy radiation curable ink-jet ink, an ink-jet recording method, and printed matter satisfying ink storage stability, ejection stability, weather resistance, flexibility, safety, odorless properties. An actinic energy radiation curable ink-jet ink comprises a cationically polymerizable compound and a photo-cationic polymerization initiator, wherein the cationically polymerizable compound comprises a vinyl ether group as a. reactive group, the photo-cationic polymerization initiator is a photo acid generator, a amount of generation of protonic acid from the photo acid generator is 1 x 10-4 mol/L or less, and comprising a radical polymerization inhibitor; wherein the amount of generation of protonic acid is defined as a difference of a hydrogen ion concentration (mol/L) in dioxane solution between immediately after preparation and after refluxing when 0.02 mol/L of the photo acid generator in dioxane solution are refluxed 20 hours under atmospheric pressure.
本发明提供了一种可辐射固化的喷墨墨水、一种喷墨记录方法以及满足墨水储存稳定性、弹射稳定性、耐候性、柔韧性、安全性和无味特性的印刷品。一种可辐射固化的喷墨墨水由阳离子可聚合化合物和光阳离子聚合引发剂组成,其中阳离子可聚合化合物由乙烯基醚基作为反应基团,光阳离子聚合引发剂由乙烯基醚基作为反应基团。其中,阳离子可聚合化合物由乙烯基醚基团作为反应基团,光阳离子聚合引发剂是一种光酸发生剂,光酸发生剂生成质子酸的量为 1 x 10-4 mol/L 或更少,还包括一种自由基聚合抑制剂;其中,质子酸的生成量定义为在大气压下将 0.02 mol/L 的光酸发生剂在二噁烷溶液中回流 20 小时后,制备后立即与回流后二噁烷溶液中氢离子浓度(mol/L)之差。