DEGASSING METHOD OF INK-JET INK, PRODUCTION METHOD OF INK-JET INK AND INK-JET PRINTER

摘要

A degassing method of an ink-jet ink comprising at least a pigment, and having a viscosity of not less than 10 mPa.second and not more than 50 mPa.second at 25° C., comprising the step of: carrying out degassing employing an external refluxing type hollow fiber degassing module under a condition of a pressure loss of the hollow fiber degassing module during degassing being less than 0.1 MPa.