Ink jet printing process
AssigneeEastman Kodak Company
InventorsCsaba A. Kovacs, Teh-Ming Kung, Charles E. Romano, Jr.
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Abstract
An ink jet printing process for improving the light stability of an ink jet image comprising: providing an ink jet recording element comprising a support having thereon an image-recording layer comprising a cross-linkable polymer of gelatin or acetoacetylated poly(vinyl alcohol) and a mordant; applying liquid ink droplets of a dye on the image-recording layer in an image-wise manner, the dye being a water-soluble deprotonated cationic dye which is capable of being reprotonated to a cationic dye having a N—H group which is part of a conjugated system; and applying an aqueous solution of a multivalent inorganic salt to the image to cross-link the polymer.
Claims9
An ink jet printing process for improving the light stability of an ink jet image comprising:
- a) providing an ink jet recording element comprising a support having thereon an image-recording layer comprising a cross-linkable polymer of gelatin or acetoacetylated poly(vinyl alcohol) and an anionic mordant;
- b) applying liquid ink droplets of a dye on said image-recording layer in an image-wise manner, said dye being a water-soluble deprotonated cationic dye which is capable of being reprotonated to a cationic dye having a N—H group which is part of a conjugated system;
- and
- c) applying an aqueous solution of a multivalent inorganic salt to said image to cross-link said polymer.
Dependencies are inferred from the claim text.