| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide an oily pigment ink composition which shortens the preparation time for ink dispersion product and broadens the range of additives to an maximum and has quick recovery performance against the evaporation to dryness of the pigment ink. SOLUTION: In the pigment ink containing a solvent, a pigment, and a pigment dispersing agent as the major components, a liquid dispersing agent at normal temperatures is used as the pigment dispersing agent and furthermore, the pigment ink contains a non-liquid resin which is soluble in the solvent and does not adversely affect the pigment dispersing agent. Desk ink products have a quick recovery function of marking performance by addition of part of the solvent alone at the time of drying the ink.</p> |
