| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an inkjet recording ink and the like which obtains high image density, is excellent in sharpness of an image, is excellent in discharge stability of the ink by reducing the occurrence of cloggings in an inkjet head and is excellent in storage stability. <P>SOLUTION: The inkjet recording ink comprises a colorant, a dispersant, a fluorine compound, water, and a humectant. The dispersant is a copolymer containing at least styrene and acrylamide as a structural unit. The fluorine compound is expressed at least either in the general formula (1): RfSO<SB POS="POST">2</SB>-NM-SO<SB POS="POST">2</SB>Rf or in the general formula (2). In the formulae (1) and (2), M is H, Li, K, Na or NH<SB POS="POST">4</SB>. <P>COPYRIGHT: (C)2012,JPO&INPIT |
