Patent application number | Description | Published |
20100219626 | SECURITY SHEET INCLUDING AN IRIDESCENT SECURITY MARK - A security sheet including an iridescent security mark observable on the surface of the sheet, said mark comprising at least one zone presenting an iridescent effect, said zone being colored in normal observation with the naked eye and including iridescent pigments that are practically colorless in normal observation and that present an iridescent effect visible only in oblique observation. | 09-02-2010 |
20100245044 | SECURITY STRUCTURE COMPRISING A THERMOCHROMIC ELEMENT AND A PHOTOCHROMIC ELEMENT - The present invention provides a security structure comprising: at least one photochromic layer presenting at least one photochromic zone including at least one photochromic element; and at least one thermochromic layer presenting at least one thermochromic zone including a thermochromic element, covering the photochromic zone at least in part. | 09-30-2010 |
20100276919 | SECURITY SHEET COMPRISING A COEXTRUDED MEDIUM - A sheet including a coextruded medium made from at least one polymer material, including a core layer and at least one skin layer, the core layer including voids, the sheet having intaglio printing performed thereon. | 11-04-2010 |
20110215561 | METHOD OF AUTHENTICATING A SECURITY DOCUMENT COMPRISING A THERMOCHROMIC ELEMENT AND DATA CONTAINING TEMPERATURE INFORMATION, AND ASSOCIATED SECURITY DOCUMENT - Security document including at least one thermochromic element able to change appearance at at least one predefined temperature, and at least one indication on the document, associated with said at least one thermochromic element, giving information on the change-of-appearance temperature of said at least one thermochromic element. | 09-08-2011 |
20130163818 | METHOD FOR THE AUTHENTICATION AND/OR IDENTIFICATION OF A SECURITY ITEM - A method for authenticating and/or identifying a security article that includes a transparent or translucent substrate and, on a side of a first face of the substrate, a first image. The method includes superimposing at least partially the first image of the article with a second image. The second image may be produced by an electronic imager. The second image may be situated on the side of a second face of the substrate that is opposite to the first face. The method permits observation of an authentication and/or identification information item of the security article during a change of the angle of observation of the first and second superimposed images. | 06-27-2013 |
20130169677 | METHOD OF AUTHENTICATING AND/OR IDENTIFYING A SECURITY ARTICLE - A method of authenticating and/or identifying a security article including a first image includes superimposing at least partially the first image of the article with a second image. The second image may be produced by an electronic imager. The method further includes performing a relative movement between the first and second images so as to make it possible to observe an item of information relating to authentication and/or identification of the security article during the relative movement between the first and second images. | 07-04-2013 |
20130181434 | METHOD FOR MANUFACTURING A SHEET BY MEANS OF COMPREGNATION IN ORDER TO FORM AN AREA MADE TRANSPARENT - The present invention relates to a method for manufacturing a sheet including a substrate made of at least one polymer material, comprising the following consecutive steps: a) compregnating at least one area of the substrate such as to form at least one area made transparent; b) providing the substrate with at least two security elements, respectively on the front and back of the substrate, said at least two security elements each being at least partially stacked on said at least one area made transparent and being placed in a marked manner in relation to one another. | 07-18-2013 |
20150174944 | Security Structure - The present disclosure relates to a security structure including a non-opaque, preferably transparent, substrate. The substrate supports metal elements forming a revealing pattern. The metal is thin enough for the metal to be non-opaque. A lacquer is placed at least partially, preferably exactly, on top of the metal elements. The lacquer may be in contact with the metal elements. | 06-25-2015 |