Ink jet ink and recording method
AssigneeKonica Minolta Holdings, Inc.
InventorAtsushi Nakajima
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Abstract
A UV-setting ink-jet ink containing at least color materials, UV-polymeric compound, and photo-induced polymerization initiator in a water-based medium, wherein the concentration of oxygen dissolved in the ink is 0.1 to 2 ppm at 25° C. This structure of this invention can provide UV-setting ink-jet inks which can always be ejected normally regardless of long continuous uses and an ink-jet recording method using said inks.
Claims5
A UV-setting ink-jet ink comprising color materials, UV-polymeric compound containing a radical polymeric compound, and photo-induced polymerization initiator in a water-based medium, wherein the UV-setting ink-jet ink further comprises oxygen dissolved in the ink in an amount of 0.1 to 2 ppm at 25° C. as a polymerization inhibitor to inhibit polymerization.
An ink-jet recording method for forming images with UV-setting ink-jet ink which comprises color materials, UV-polymeric compound containing a radical polymeric compound, and photo-induced polymerization initiator in a water-based medium and further comprises dissolved oxygen of 0.1 to 2 ppm in the ink at 25° C. as a polymerization inhibitor to inhibit polymerization, the method comprising steps of:
- jetting the UV-setting ink-jet ink onto a base material, and
- applying ultraviolet lights to the ink on the base material.
Dependencies are inferred from the claim text.