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US 2014/0192112 A1Published application
Image forming method and image forming apparatus
AssigneeRicoh Company, Ltd.
InventorsHidefumi NAGASHIMA, Michihiko Namba, Kiyofumi Nagai
Life of this patent
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Abstract
An image forming method includes discharging an inkjet ink including a water-dispersible colorant, a wetter, a surfactant, a penetrant water-dispersible polyurethane resin having a median diameter of from 0.01 to 0.10 μm water and at least one of a polyethylene wax and a paraffin wax on the surface of the recording medium on which the inkjet ink is discharged.
Claims10
An image forming method, comprising:
- discharging an inkjet ink comprising a water-dispersible colorant, a wetter, a surfactant, a penetrant and water on a surface of a recording medium;
- and
- applying an after-treatment liquid comprising a water-dispersible polyurethane resin having a median diameter of from 0.01 to 0.10 μm, water and at least one of a polyethylene wax and a paraffin wax on the surface of the recording medium on which the inkjet ink is discharged.
An image forming apparatus, comprising:
- a discharger configured to discharge an inkjet ink comprising a water-dispersible colorant, a wetter, a surfactant, a penetrant and water on a surface of a recording medium;
- and
- an applicator configured to apply an after-treatment liquid comprising a water-dispersible polyurethane resin having a median diameter of from 0.01 to 0.10 μm, water and at least one of a polyethylene wax and a paraffin wax on the surface of the recording medium on which the inkjet ink is discharged.
Dependencies are inferred from the claim text.