Thales

In-idt

Yves Thebault

Philippe Robin

Claude Bricot

Michel Cormier

Pierre Ly

Sébastien Guionnet

Henri Gargallo

Jérôme Ageron

The present invention relates to a method of enhancing document security for documents of the type each comprising a print medium on which is printed personalizing information, this printed medium being laminated between two laminates that are at least partially transparent, this method rendering any forging of these documents by ungluing the laminates ineffective, and it is characterized in that at least one additional phantom personalizing image is printed on at least one of the laminates.

Method for enhancing document security and device for implementing said method

The method of the invention consists, on the one hand, in serially recording on a tape of photosensitive film a succession of volume holograms each relating respectively to an item of information of a corresponding document to be made secure, each of these holograms being accompanied by an identification and positioning code printed on the same film, in developing and in fixing the holograms thus recorded, and on the other hand in printing at the same time the identity documents with their individual identification codes which are the same as those of the respective corresponding holograms, in adding an adhesive to the holograms after their fixing, and in adhesively bonding together each hologram and the corresponding document after verifying that their respective identification codes match.

Method for serial production of secure documents and machine therefor

Growing community of inventors

Verrieres-le-Buisson, France

Yves Thebault