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US 6,142,621 AGranted
Ink jet printing process
AssigneeEastman Kodak Company
InventorsCharles E. Romano, Jr., Elizabeth A. Gallo
Life of this patent
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Abstract
An ink jet printing process for improving the water-fastness 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 acetoacetylated poly(vinyl alcohol) and a mordant, b) applying liquid ink droplets of an anionic, water-soluble dye on the image-recording layer in an image-wise manner, and c) submerging the element in an aqueous solution of a hardener to cross-link the binder.
Claims9
An ink jet printing process for improving the water-fastness 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 acetoacetylated poly(vinyl alcohol) and a mordant,
- b) applying liquid ink droplets of an anionic, water-soluble dye on said image-recording layer in an image-wise manner, and
- c) submerging said element in an aqueous solution of a hardener to cross-link said polymer.
Dependencies are inferred from the claim text.