Optically variable personalized indicia for identification documents
First Claim
1. An identification document comprising:
- a document layer comprising a material for receiving printing of thermally transferable optically variable pigment;
a first indicium printed on the document layer, the first indicium being printed to the document layer by a thermally transferred optically variable pigment;
the first indicium being at least partially overlaid with a second indicium printed to the document layer by a thermally transferred covert pigment,wherein the first and the second indicia are printed on the document layer by;
disposing a thermally transferable optically variable pigment in a mass transfer panel of a printer ribbon configured for dye diffusion thermal transfer printing or mass transfer printing to form a first layer;
disposing a thermally transferable covert pigment in the mass transfer panel to form a second layer over the first layer;
printing the first and second indicia as part of a mass transfer printing process, such that, the second indicium printed in covert pigment at least partially overlays the first indicium printed in optically variable pigment; and
wherein the first indicium comprises a digital image, the digital image formed by;
providing an initial image that is to be used as a model to generate the optically variable image, the digital image comprising personalized data;
detecting edges or boundaries within the digital image, the detected edges or boundaries forming an intermediate image; and
emphasizing the edges or boundaries within the intermediate image.
4 Assignments
0 Petitions
Accused Products
Abstract
The invention relates to identification documents, and in particular to providing optically variable personalized data to identification documents. In one implementation, we provide an identification document comprising a document layer and a first indicium. The document layer comprises a material capable of being printed by a thermally transferable optically variable ink. The first indicium is printed on the document layer and comprises personalized data and printed to the document layer by a thermally transferred optically variable ink. The first indicium may be printed to the document layer by disposing a thermally transferable optically variable ink in a mass transfer panel of a printer ribbon adapted for use in a dye diffusion thermal transfer printer, and printing the first indicium as part of a mass transfer printing process. The thermally transferred optically variable ink can be selected and printed such that the first indicium has at least one of a luster, shine, sheen, pearlescent appearance, iridescent appearance, and mirror-like appearance. This technology enables the creation of a halftone “mirror image” over a color ghost image to achieve a layered and linked multiple personalization scheme of ID documents.
-
Citations
12 Claims
-
1. An identification document comprising:
-
a document layer comprising a material for receiving printing of thermally transferable optically variable pigment; a first indicium printed on the document layer, the first indicium being printed to the document layer by a thermally transferred optically variable pigment; the first indicium being at least partially overlaid with a second indicium printed to the document layer by a thermally transferred covert pigment, wherein the first and the second indicia are printed on the document layer by; disposing a thermally transferable optically variable pigment in a mass transfer panel of a printer ribbon configured for dye diffusion thermal transfer printing or mass transfer printing to form a first layer; disposing a thermally transferable covert pigment in the mass transfer panel to form a second layer over the first layer; printing the first and second indicia as part of a mass transfer printing process, such that, the second indicium printed in covert pigment at least partially overlays the first indicium printed in optically variable pigment; and wherein the first indicium comprises a digital image, the digital image formed by; providing an initial image that is to be used as a model to generate the optically variable image, the digital image comprising personalized data; detecting edges or boundaries within the digital image, the detected edges or boundaries forming an intermediate image; and emphasizing the edges or boundaries within the intermediate image. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
-
Specification