| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an actinic energy radiation curable ink-jet ink that prevents viscosity variation and reduction in ink repellency and excellent discharge stability, flexibility of formed image, weatherability, safety and odorless properties, an ink-jet recording method, and a printed mater. <P>SOLUTION: The 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, the amount of generation of protonic acid from the photo acid generator is 1×10<SP>-4</SP>mol/L or less, and the initiator comprising a radical polymerization inhibitor; wherein the amount of generation of protonic acid is defined as the 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 is refluxed for 20 hours in the atmospheric pressure. <P>COPYRIGHT: (C)2011,JPO&INPIT |
