| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an inkjet white ink composition excellent in discharge property, wherein dispersion stability of a white pigment is excellent in the ink composition, and development of nozzle clogging resulting from settlement of the pigment is suppressed even when the ink composition is applied to an inkjet recording system. <P>SOLUTION: A UV-curing inkjet white ink composition comprises a pigment dispersed with a polymer dispersant, a curable compound, and a polymerization initiator, wherein the polymer dispersant is a vinyl polymer having a substituent composed of an acid or its salt at a terminal. The polymer dispersant is preferably a compound having at least one of a sulfonyl group and a phosphonyl group in the molecule. <P>COPYRIGHT: (C)2008,JPO&INPIT |
