| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an ink composition that is capable of providing an image of good quality free from blur because charge generating efficiency of ink particle and charge stability of ink particle with the lapse of time are improved and electrophoretic speed of ink particles sufficiently occurs at an ejection part of an inkjet recording device, and an inkjet recording method. <P>SOLUTION: The invention relates to the ink composition comprising charged particles comprising at least a dispersion medium and a colorant, wherein the ink composition comprises at least a compound having pKb of 16 or less in water and containing a proton-acceptive neutral functional group, and a charge controlling agent having pKa of 16 or less in water and containing a proton-donative group. The inkjet recording method comprises a step of flying an ink composition as ink droplets by utilizing an electrostatic field. <P>COPYRIGHT: (C)2005,JPO&NCIPI |
