| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an ink composition having transparency and good in dispersion stability. <P>SOLUTION: This ink composition comprises at least an amphiphilic block copolymer having a polyalkenyl ether structure, a colorant and a solvent, where the average particle diameter of a particle formed from the block copolymer and the colorant is in the range of 20-200 nm, and the particle diameter ratio (b/a) of the minor axis (b) to the major axis (a) of projected sectional view of the particle is in the range of 0.8-1.0. <P>COPYRIGHT: (C)2005,JPO&NCIPI |
