Colorless toner formulated to improve light fastness of ink jet ink prints
AssigneeHewlett-Packard Development Company, L.P.
InventorsAn-Chung Robert Lin, Michael H. Lee
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Abstract
The present invention is drawn to colorless toner compositions for overcoating a print having an ink jet ink image printed thereon. The colorless toner can comprise: a toner resin and at least two additives independently selected from the group consisting of ultraviolet absorbers, free radical inhibitors, thermal stabilizers, and combinations thereof, wherein the ratio of toner resin to total additive is from 1:1 to 99:1 by weight. The colorless toner can also be comprised of a charge control agent and/or a low-melt wax.
Claims13
A colorless toner composition overcoated on an ink jet ink print, said colorless toner composition comprising a toner resin and at least two additives selected from the group consisting of a thermal stabilizer, an ultraviolet absorber and a free radical inhibitor, wherein the ratio of said toner resin to said additives is from about 1:1 to 99:1 by weight, said toner composition being adhered to the ink jet ink print, and wherein at least one of said additives has interacted with a colorant molecule or polymer of the ink jet ink.
Dependencies are inferred from the claim text.