| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an active ray-curable inkjet ink formable of highly precise images stably at high speed, and well adaptable to various recording materials. <P>SOLUTION: This active ray-curable inkjet ink includes a gelling agent and an active ray-curable composition, where the active ray-curable inkjet ink performs sol-gel phase transition reversibly depending on temperatures. The active ray-curable inkjet ink includes, as polymerizable compounds, 20-60 mass% of a compound (A) and 10-40 mass% of a compound (B), where the (A) is a vinyl ether compound meeting conditions of having 300-1,000 molecular weight and a structure represented by (-CO-O-)<SB POS="POST">n</SB>in the molecule, where n is an integer of 2-5; and the (B) is an acrylate or methacrylate meeting conditions of having 400-1,500 molecular weight, being 2-functional to 6-functional, and having a structure represented by (-CH<SB POS="POST">2</SB>-CH<SB POS="POST">2</SB>-O-)<SB POS="POST">m</SB>in the molecule, where m is an integer of 4-145. <P>COPYRIGHT: (C)2012,JPO&INPIT |
