Applying imaging specialty inks to scratch-off documents
AssigneeHydragraphix LLC
InventorsKenneth Earl Irwin, JR., Keith Cash, George Adkins
Life of this patent
Estimating the term…
Abstract
A security-enhanced document including a substrate, at least one lower portion of graphic imaging with or without first variable indicia directly or indirectly digitally imaged on the substrate, at least one release coat applied over the lower portion, at least one scratch-off layer over the release coat to maintain the lower portion imaging unreadable until removal of the scratch-off layer, and at least one second surface material portion.
Claims20
A method for producing a multiple security layered scratch-off coating document with variable indicia on an inline web press, the method comprising:
- printing, with fixed plates, lower security layers on a substrate, the lower security layers comprising a lower opacity layer printed on the substrate and a higher contrast background layer on a portion of the substrate;
- printing, with a first digital imager, variable indicia over the lower security layers;
- printing an upper security stack over the variable indicia, the upper security stack comprising a water based transparent or translucent seal coat, a direct energy cured transparent or translucent release coat, and a scratch-off coating;
- printing a specialty ink adhesive layer to part of the portion of the substrate;
- thereafter, affixing a second surface material comprising fine metal flakes to the part of the portion of the substrate using a silicon coated donor roller;
- and
- curing the specialty ink adhesive layer,
- wherein portions of the second surface material comprising the fine metal flakes in areas where the specialty ink adhesive layer was applied remain attached to the multiple security layered scratch-off coating document.
A method for producing a multiple security layered scratch-off coating document with metal pigmented variable indicia on an inline web press, the method comprising:
- printing, with fixed plates, lower security layers on a substrate, the lower security layers comprising a relatively lower opacity layer printed on the substrate and a relatively higher contrast background layer on a portion of the substrate;
- printing, with a first digital imager, a specialty ink adhesive layer over the lower security layers;
- affixing a second surface material comprising fine metal flakes to portions of the lower security layers using a silicon coated donor roller and curing the specialty ink adhesive layer thereby forming metal pigmented variable indicia;
- and
- printing an upper security stack over the metal pigmented variable indicia, the upper security stack comprising a water based transparent or translucent seal coat, a direct energy cured transparent or translucent release coat, and a scratch-off coating.
Dependencies are inferred from the claim text.