Printing substrates
AssigneeHP Indigo B.V.
InventorsInna Tzomik, Daniel Skvirsky, Faina Kogan, Gleb Romantcov, Asaf Salant, Daniel Tulchinski
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Abstract
The present disclosure relates to a process for printing a substrate. The process comprises applying an analogue primer over a print substrate. A transparent electrophotographic composition comprising a coupling agent is electrophotographically printed on the primer as a coupling layer. An electrophotographic ink composition is then printed on the coupling layer to form an image layer. The coupling layer is disposed between the primer and image layer and in contact with each of the primer and image layer.
Claims8
A process for printing a substrate, said process comprising
- non-digitally applying an analogue primer over a print substrate, wherein the analogue primer is devoid of charge adjuvant and charge director,
- electrophotographically printing a transparent electrophotographic composition comprising a crosslinking agent including an epoxy, anhydride, isocyanate and/or carbodiimide group on the analogue primer as a coupling layer, wherein the transparent electrophotographic composition comprises an epoxy resin dispersed in a liquid carrier, and
- electrophotographically printing an electrophotographic ink composition on the coupling layer to form an image layer,
- wherein the coupling layer is disposed between the analogue primer and image layer and in contact with each of the analogue primer and image layer.
Dependencies are inferred from the claim text.