Abstract: The present invention relates to a security film comprising a fibrous substrate incorporated at least partially in which is a security strip that comprises at least one security element and that extends between two edges of said fibrous substrate, said security strip being made of paper and comprising an adhesive.

Abstract: The present invention relates to a sheet material (2) 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 (6) and having at least one second color, the first and second colors having at least different saturations and/or hue angles.

Abstract: 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.

Abstract: The present invention relates to an information medium to be handled by a large number of users, such as a banknote, and having antiviral properties, and to a method for making same.

Abstract: The invention relates to a method for creating a visual animation on a medium, including the following steps consisting in: disposing at least two excitable agents on the medium in at least two adjacent respective zones, each of said agents generating a visual effect in response to the same stimulus and said visual effects having different appearances and/or afterglows. The excitable agents are selected such that the visual effects appear and/or disappear sufficiently close to one another over time so as to give the observer the impression of movement on the medium.

Abstract: A flat security member having a relatively small format, such as a thin board, including at least one through-hole and a method for producing a flat security member. A sheet material having a flat security member and a security document or an item to be authenticated having the sheet material.

Abstract: A security document (1) including a revealer raster (3) associated with a combined image (2) present on the document (1) and/or on another article, this combined image (2) comprising at least two interleaved images, at least one of the combined image (2) and the revealer raster (3) appearing in a zone of the document (1) that is at least partially transparent, the revealer raster (3), when superposed at least in part on the combined image (2) of the same document (1) or of the other article, serving to observe the interleaved images in succession by relative movement between the revealer raster (3) and the combined image (2), it being possible to superpose the revealer raster (3) and the combined image (2) by folding the document (1) and/or by superposing the document (1) on the other article.

Abstract: 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.

Abstract: A structure including at least two separate integrated microcircuit devices with contactless communication, each including at least one chip and at least one antenna, said at least two integrated microcircuit devices being placed in or on the structure such that any simultaneous reading of more than one of the integrated microcircuit devices by an external reader is impossible in at least one position of the structure relative to the external reader.

Abstract: A security element having a variable optical effect, including at least one quasi-spherical particle having at least one external part and at least one internal part, said external part including at least one cholesteric liquid crystal and said internal part including at least one thermochromic compound and/or at least one photochromic compound undergoing a reversible transition from a colourless state to a dark colour or from a dark colour to a colourless state when said compound is subjected to an activation temperature or to activation radiation respectively, the dark colour making it possible to see the interference effect of said liquid crystal, and the colourless state making this interference effect no longer visible.

Abstract: A sheet comprising a fiber substrate and at least one ribbon defining at least one zone of reduced opacity, the sheet including at least two complementary security elements situated respectively on either side of said at least one ribbon and of complementarity that is observable in show-through by virtue of the zone of reduced opacity.

Abstract: A method of fabricating a sheet by papermaking, the sheet including at least one ply of a fiber substrate and at least one ribbon, wherein the ribbon is introduced in a fiber suspension of a vat former papermaking machine enabling the ply to be formed; or in direct contact with the vat former; or in contact with the already-formed ply; the point at which the ribbon is introduced being selected so as to create at least one region of increased thickness or of reduced thickness in the sheet in register with the ribbon, the reduced thickness being due to a reduction in the de-watering of the fiber suspension caused by the ribbon.

Abstract: A security sheet that includes an information to be exposed and a preferably fibrous substrate in which is preferably totally embedded a ribbon that has a surface A and a surface B and is strippable along the surface B thereof, the information to be exposed being carried by and/or opposite the surface B of the ribbon, a method for making said security sheet, and a security document or article including such a sheet.

Abstract: A sheet including a fiber substrate including at least one watermark and having at least partially incorporated therein a ribbon that is narrower than the substrate and that overlies the watermark in part.

Abstract: The invention concerns a security paper comprising at least two plies of paper, wherein at least one intermediate layer arranged between the two plies of paper comprises at least one element providing the paper with high double folding resistance, such as defined by the NF ISO 5626 standard, the two plies and said intermediate layer being closely assembled. The invention also concerns a method for making said paper whereby the intermediate layer is deposited by spraying.

Abstract: The present invention relates to a crumple-resistant security sheet comprising fibers; an anionic polymer in a proportion lying in the range 5% to 45% by dry weight relative to the total dry weight of the fibers, and presenting a glass transition temperature greater than 40° C.; and a main cationic flocculation agent in a quantity lying in the range 1% to 5% by dry weight relative to the total dry weight of the fibers.

Abstract: The present invention relates to a security film comprising a fibrous substrate incorporated at least partially in which is a security strip that comprises at least one security element and that extends between two edges of said fibrous substrate, said security strip being made of paper and comprising an adhesive.

Abstract: The present invention relates to a method of reading at least two bar codes with the aid of a reading system comprising: first and second illuminants capable of emitting respectively first and second luminous radiations having different spectral characteristics and an optical detector, the system being arranged so as to allow the reading, with the aid of the detector, of a first bar code when illuminated by the first illuminant and of a second bar code when illuminated by the second illuminant, in which method the first and second bar codes are disposed on two different substrates and in which the first bar code is read with the first illuminant and the second bar code with the second illuminant.

Abstract: A flat security member having a relatively small format, such as a thin board, including at least one through-hole and a method for producing a flat security member. A sheet material having a flat security member and a security document or an item to be authenticated having the sheet material.

Abstract: 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.