Preprinted image-receiving elements for laminated documents
First Claim
1. An image-receiving element adapted to the production of a diffusion transfer photograph, said image-receiving element comprising a support layer carrying, in sequence, a polymeric acid-reacting layer, a polymeric timing layer through which alkali may pass to said polymeric acid-reacting layer, and an alkali permeable and dyeable image-receiving layer, said image-receiving element including between contiguous layers thereof, a printed security pattern comprising a pattern agent and a binder therefor, said binder being preferentially adhesive to the layer of said contiguous layers closest in proximity to said image-receiving layer, if such contiguous layers are deliminated.
13 Assignments
0 Petitions
Accused Products
Abstract
An image-receiving element adapted to the provision of a diffusion transfer photograph and having a preprinted security pattern between contiguous layers thereof is disclosed. The pattern comprises a patterning agent and a binder therefor preferentially adhesive to the contiguous layer closest in proximity to the image-receiving layer of such element. Diffusion transfer photographs prepared from the image-receiving element carrying the preprinted security pattern are useful in the production of an information-bearing document such as an ID card.
84 Citations
25 Claims
- 1. An image-receiving element adapted to the production of a diffusion transfer photograph, said image-receiving element comprising a support layer carrying, in sequence, a polymeric acid-reacting layer, a polymeric timing layer through which alkali may pass to said polymeric acid-reacting layer, and an alkali permeable and dyeable image-receiving layer, said image-receiving element including between contiguous layers thereof, a printed security pattern comprising a pattern agent and a binder therefor, said binder being preferentially adhesive to the layer of said contiguous layers closest in proximity to said image-receiving layer, if such contiguous layers are deliminated.
-
13. A laminated information-bearing document comprising an information-bearing diffusion transfer photograph and a protective plastic sheet material bonded to at least a surface thereof, said information-bearing diffusion transfer photograph comprising a support layer carrying, in sequence, a polymeric acid-reacting layer, a polymeric timing layer through which alkali may pass to said polymeric acid-reacting layer, and an image-bearing layer, said information-bearing diffusion transfer photograph including between contiguous layers thereof, a printed security pattern comprising a patterning agent and a binder therefor, said binder being preferentially adhesive to the layer of such contiguous layers closest in proximity to said image-bearing layer, if such contiguous layers are deliminated.
Specification