Ozone resistant dye-based images
AssigneeEastman Kodak Company
InventorsMichael J. Carmody, Thomas B. Brust
Life of this patent
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Abstract
A process for providing an ozone resistant dye-based image, and a resulting image, includes jetting an ink containing the dye onto a microporous media surface to form a dye-based image, and thereafter jetting over at least a portion of the dye-based image a clear ink overcoat including a transparent polymeric binder containing dispersed inorganic nano particles, wherein the median equivalent circular diameter of all of the dispersed inorganic particles is in the range of 1 to 500 nm. Color fade due to ozone effects is diminished while maintaining jetability.
Claims14
A process for forming an ozone resistant dye-based image, comprising:
- jetting an ink containing the dye onto a microporous media surface to form a dye-based image, and
- thereafter jetting over at least a portion of the dye-based image a clear ink overcoat comprising a transparent polymeric binder containing dispersed inorganic nano particles, wherein the median equivalent circular diameter of all of the dispersed inorganic particles is in the range of 1 to 500 nm, and wherein the dispersed inorganic nano particles are predominantly three dimensional exhibiting similar dimensions along x, y, and z axes, with an aspect ratio less than 4.
Dependencies are inferred from the claim text.