| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an ink-jet recording pigment ink which has the extremely excellent dispersion stability and the high ejection stability and which is capable of giving a recorded matter having no strike-through when glossy papers are printed and then the printed papers are piled up. <P>SOLUTION: The ink-jet recording pigment ink, containing water, a pigment, a water-soluble organic solvent and a copolymer, is characterized in that the copolymer is formed by copolymerizing a vinyl group-containing, silicone-based macromer expressed by formula (1), a 1-8C hydrocarbyl group-containing vinyl monomer expressed by formula (2), and an anionic functional group-containing monomer. <P>COPYRIGHT: (C)2008,JPO&INPIT |
