Patent application number | Description | Published |
20090301676 | SHEET MATERIAL COMPRISING AT LEAST ONE WATERMARK HAVING A COLORED SHADE - The present invention relates to a sheet material comprising at least one first layer defining an outer surface of the sheet material and having at least one first color, at least one second layer comprising at least one watermark and having at least one second color, the first and second colors having at least different saturations and/or hue angles. | 12-10-2009 |
20100295289 | SECURITY ELEMENT COMPRISING A DISCERNIBLE DESIGN - The present invention concerns a flat safety element, comprising a support that contains, on at least one of its faces, a set of elementary characters, characterized in that said elementary characters are equipped with a variation in shape and/or density and/or size in such a manner as to ensure a detectable design is at least visible. | 11-25-2010 |
20110142279 | SECURITY PAPER - A security paper comprising a fibrous substrate comprising a watermark having repeating motifs, and a security structure that does not completely cover the watermark and has at least one semi-reflective area which is superposed at least partly on the watermark; which paper on the one hand allows observation, through the semi-reflective area, at least partially, of one of the motifs, and on the other hand allows observation at least partially of another of said motifs in a region of the watermark that is not covered by the security structure. | 06-16-2011 |
20120068451 | METHOD FOR SECURING A COLOURED OPAQUE OBJECT - The invention relates to a method for securing a coloured or uncoloured translucent or opaque object ( | 03-22-2012 |
20120205062 | SHEET MATERIAL COMPRISING AT LEAST ONE WATERMARK HAVING A COLORED SHADE - The present invention relates to a sheet material ( | 08-16-2012 |
20130003150 | SECURITY ELEMENT INCLUDING AN OPTICAL STRUCTURE - The present invention relates to a security element ( | 01-03-2013 |
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 |
20130255896 | Device for creating multitone watermarks and methods of manufacture and use thereof - The present invention relates to the field of paper and relates to a sheet including a high-definition high-contrast multitone watermark having areas of pronounced brightness. Such watermark is particularly obtained by means of a part ( | 10-03-2013 |