Liquid ejecting method
AssigneeSeiko Epson Corporation
InventorShigemi WAKABAYASHI
Life of this patent
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Abstract
A liquid ejecting method includes ejecting droplets of an oil-based ink containing an oil-based medium onto a recording medium by using an ink jet head having a plurality of nozzles under the conditions satisfying relationships (1): f×D≧4800; and relationship (2): 5≦ρVd/η≦30. In the relationships (1) and (2), D represents the nozzle pitch in dpi of the ink jet head, f represents the maximum ejection frequency in kHz, V represents the velocity in m/s of droplets ejected from the ink jet head, d represents the diameter in μm of the droplets of the oil-based ink, ρ represents the density in g/cm3 of the oil-based ink, and η represents the viscosity in mPa·s of the oil-based ink.
Claims6
A liquid ejecting method comprising:
- ejecting droplets of an oil-based ink containing an oil-based medium onto a recording medium by using an ink jet head having a plurality of nozzles under the conditions satisfying the following relationships:
- f×D≧4800 (1);
- and
- 5≦ρVd/η≦30 (2),
- wherein D represents the nozzle pitch in dpi of the ink jet head, f represents the maximum ejection frequency in kHz, V represents the velocity in m/s of the droplets ejected from the ink jet head, d represents the diameter in μm of the droplets, ρ represents the density in g/cm3 of the oil-based ink, and η represents the viscosity in mPa·s of the oil-based ink.
Dependencies are inferred from the claim text.