| 摘要 |
PROBLEM TO BE SOLVED: To provide a degassing method of an inkjet ink having superior productivity, storage stability, outgoing property, and granularity at printing though a pigment ink of the high viscosity.SOLUTION: There is provided a degassing method of an inkjet ink carrying out degassing employing an external refluxing type hollow fiber degassing module to the inkjet ink that contains at least a pigment and has the viscosity of ≥50 mPa sec and ≤10 mPa sec at 25°C under a condition of a pressure loss of the hollow fiber degassing module during degassing being less than 0.1 MPa. |
