Identification document usable with D2T2 printing

• US 20050035590A1
• Filed: 05/17/2004
• Published: 02/17/2005
• Est. Priority Date: 05/16/2003
• Status: Abandoned Application

• Current Assignee: Digimarc Corporation
• Original Assignee: Digimarc Corporation
• Inventors: Bi, Daoshen, Jones, Robert L., Labrec, Brian, Regan, Thomas
• Application Number:
  US10/848,526
• Publication Number:
  US 20050035590A1
• Time in Patent Office: Days
• US Class Current: 283/74
• CPC Class Codes: B42D 25/00 Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof printing processes to produce identification or security features B41M3/14
• CPC Class Codes: B42D 25/23 Identity cards
• CPC Class Codes: B42D 25/24 Passports
• CPC Class Codes: B42D 25/41 using electromagnetic radiation B42D25/435 takes precedence
• CPC Class Codes: B42D 25/435 using electromagnetic radiation, e.g. laser

Abstract

The invention provides an identification document comprising a substantially opaque polycarbonate core layer bearing at least one indicium thereon, two layers of substantially transparent polycarbonate fixed to the core layer on opposed sides thereof, and at least one image-receiving layer capable of being imaged by dye diffusion thermal transfer, the image-receiving layer being fixed to one of the layers of substantially transparent polycarbonate on the side thereof remote from the core layer.

Claims

1. An identification document comprising:

a core layer, the core layer having first and second sides and comprising at least one of polycarbonate (PC) and polyethylene terephthalate (PET);

a substantially transparent layer fixed to the first side of the core layer, the substantially transparent layer having first and second sides and affixed to the core layer along the first side of the substantially transparent layer, the substantially transparent layer comprising at least one of PC and PET; and

an image-receiving layer capable of being imaged by dye diffusion thermal transfer, the image-receiving layer being fixed to the second side of the substantially transparent layer.

2. The identification document of claim 1, wherein the image receiving layer comprises polyvinyl chloride.

3. The identification document of claim 1, wherein the image receiving layer is applied as a coating.

4. The identification document of claim 3, wherein the coating comprises about 5-20% low density PVC mixed with about 80-95% of a solvent.

5. The identification document of claim 1 wherein the core layer has a first indicium formed thereon.

6. The identification document of claim 1 having at least one second indicium printed by dye diffusion thermal transfer on the image-receiving layer.

7. The identification document of claim 5, having at least one second indicium printed by dye diffusion thermal transfer on the image-receiving layer, the second indicium being different from the first indicium on the core layer.

8. The identification document of claim 7, wherein at least one of the first and second indicia comprises fixed data and the other comprises variable data.

9. The identification document of claim 1 further comprising a protective layer fixed to the image-receiving layer and superposed over the second indicium thereon.

10. The identification document of claim 5 wherein the indicium on the core layer is formed by at least one of laser engraving, laser marking, and laser etching.

11. The identification document of claim 1 wherein the substantially transparent layer has an indicium formed therein, the indicium formed by at least one of laser engraving, laser marking, and laser etching.

19. The process of claim 6, further comprising forming at least a third indicium within the substantially transparent layer by at least one of laser engraving, laser marking, and laser etching.

12. A process for preparing an identification document, which process comprises:

providing a core layer, the core layer having first and second sides and comprising at least one of polycarbonate (PC) and polyethylene terephthalate (PET);

affixing to the first side of the core layer a substantially transparent layer, the substantially transparent layer having first and second sides and affixed to the core layer along the first side of the substantially transparent layer, the substantially transparent layer comprising at least one of PC and PET; and

applying to the second side of the substantially transparent layer an image-receiving layer capable of being imaged by dye diffusion thermal transfer.

13. The process of claim 12, further comprising printing a first indicia to the core layer.

14. The process of claim 12, further comprising printing a second indicia to the image receiving layer by dye diffusion thermal transfer.

15. The process of claim 13 further comprising printing a second indicia to the image receiving layer by dye diffusion thermal transfer.

16. The process of claim 13 wherein at least one of the first and second indicia comprises fixed data and the other comprises variable data.

17. The process of claim 13 wherein the indicia is formed by at least one of laser engraving, laser etching, and laser marking.

18. The process of claim 14, further comprising affixing a protective layer over the image-receiving layer bearing the second indicium.

20. An identification document, comprising:

a core layer, the core layer having first and second sides and comprising at least one of polycarbonate and polyethylene terephthalate; and

an image-receiving layer capable of being imaged by dye diffusion thermal transfer, the image-receiving layer being fixed to at least one of the first and second sides of the core layer.

21. The identification document of claim 20, wherein the core layer is capable of being imaged by at least one of laser engraving, laser marking, and laser etching.

22. The identification document of claim 20, wherein the core layer has a first indicia formed therein.

23. The identification document of claim 22, wherein the image layer as a second indicia formed therein, wherein the second indicia differs from the first indicia.

24. The identification document of claim 23, wherein at least one of the first and second indicia comprises variable data.