Actinic ray curable ink jet solventless ink, image forming method using the same, and ink jet recording apparatus

摘要

An active ray curable ink jet solventless ink contains: a bifunctional or higher acrylate compound having a structure expressed by general formula (1) in an amount of less than 35% by mass, and a monofunctional acrylate compound in an amount of 65% by mass or more: wherein the general formula (1) is -(-R-O-)n- where, R represents an alkyl group, and n represents an integer of 1 or larger. Also shown is an image forming method for forming an image on a recording material using the ink and an ink-jet recording apparatus used for the image forming method. Another active ray curable ink jet solventless ink is shown comprising less than 80% by mass of a bifunctional or higher acrylate compound and a trifunctional or higher acrylate compound in an amount of less than 10% by mass.