Foil composite card
AssigneeCompoSecure, LLC
InventorJohn Herslow
Life of this patent
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Abstract
Composite cards formed in accordance with the invention include a security layer comprising a hologram or diffraction grating formed at or in the center, or core layer of the card. The hologram may be formed by embossing a designated area of the core layer with a diffraction pattern and depositing a thin layer of metal on the embossed layer. Additional layers may be selectively and symmetrically attached to the top and bottom surfaces of the core layer. A laser may be used to remove selected portions of the metal formed on the embossed layer, at selected stages of forming the card, to impart a selected pattern or information to the holographic region. The cards may be “lasered’ when the cards being processed are attached to, and part of, a large sheet of material, or after the sheets are die-cut into cards.
Claims18
A method process for forming a document having first and second sides, the method comprising the steps of:
- providing a clear plastic sheet defining a core layer of said document, the core layer having a first surface and a second surface;
- forming a pattern on the first surface of the core layer;
- forming a patterned layer of a selected metal or metal compound on a designated area of the formed pattern operative to cause a light pattern to be produced corresponding to the formed pattern in response to incident light;
- attaching a selected number of clear plastic buffer layers to the patterned layer, and attaching a like number of clear layers to the second surface of the core layer, including at least one clear layer in the selected number or the like number having information selectively written thereon, and
- selectively modifying the patterned layer to customize the document, including forming a window within the designated area that renders the selectively written information on the at least one clear layer visible through the window from one side of the document or that renders the window see-through from both sides of the document.
Dependencies are inferred from the claim text.