| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide inkjet ink giving high color saturation and density of an image formed of pigment-based inkjet ink, having excellent long-term storage property of the ink and good discharge stability, and in particular, achieving printing without print deflection. <P>SOLUTION: The ink comprises at least a pigment, a dispersant, water, and resin fine particles dyed with a fluorescent dye and is characterized in that: the resin fine particles dyed with a fluorescent dye comprise an emulsion polymerized material obtained from at least a vinyl monomer as a source material; the vinyl monomer is the mixture of a cyano group-containing vinyl monomer (A), a vinyl monomer (B) having one or more groups selected from a hydroxy group, carboxy group, amino group, carbamoyl group, sulfonic acid group, phosphoric acid group and groups derived from these functional groups, and a vinyl monomer (C) excluding the above vinyl monomers (A) and (B); and the vinyl monomer (B) is included by not more than 4.75 wt.% of the monomer mixture. <P>COPYRIGHT: (C)2009,JPO&INPIT |
