| 摘要 |
PROBLEM TO BE SOLVED: To provide a pigment ink which, when used in continuous ink jet recording, is excellent in delivery stability and in redispersibility into a solvent after dried. SOLUTION: This pigment ink at least contains a pigment, a resin, and water, and its product F of electrical conductivity (mS/cm) by surface tension (mN/m) is in the range represented by 50<=F<=400. |
