EP2024566B1 - Safety element comprising a detectable design - Google Patents

Safety element comprising a detectable design Download PDF

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Publication number
EP2024566B1
EP2024566B1 EP07788970.7A EP07788970A EP2024566B1 EP 2024566 B1 EP2024566 B1 EP 2024566B1 EP 07788970 A EP07788970 A EP 07788970A EP 2024566 B1 EP2024566 B1 EP 2024566B1
Authority
EP
European Patent Office
Prior art keywords
security element
security
characters
elementary characters
elementary
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Revoked
Application number
EP07788970.7A
Other languages
German (de)
French (fr)
Other versions
EP2024566A2 (en
Inventor
Pierre Doublet
Michel Camus
Stéphane Mallol
Yvan Thierry
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ArjoWiggins Security SAS
Original Assignee
ArjoWiggins Security SAS
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
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First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=37621958&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP2024566(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by ArjoWiggins Security SAS filed Critical ArjoWiggins Security SAS
Priority to PL07788970T priority Critical patent/PL2024566T3/en
Publication of EP2024566A2 publication Critical patent/EP2024566A2/en
Application granted granted Critical
Publication of EP2024566B1 publication Critical patent/EP2024566B1/en
Revoked legal-status Critical Current
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Classifications

    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H21/00—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties
    • D21H21/14—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties characterised by function or properties in or on the paper
    • D21H21/40—Agents facilitating proof of genuineness or preventing fraudulent alteration, e.g. for security paper
    • D21H21/42—Ribbons or strips
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B42—BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
    • B42D—BOOKS; BOOK COVERS; LOOSE LEAVES; PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITY FEATURES; PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOT OTHERWISE PROVIDED FOR; DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDED FOR; MOVABLE-STRIP WRITING OR READING APPARATUS
    • B42D25/00—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof
    • B42D25/30—Identification or security features, e.g. for preventing forgery
    • B42D25/355—Security threads

Definitions

  • the invention relates to a flat security element comprising a discernible pattern and the sheet or security article containing it.
  • Such yarns may have printed indicia, but they may have the disadvantage of being too conspicuous in reflected light and therefore relatively easily reproducible by counterfeiters or forgers who print the pattern of the yarn on the paper.
  • the object of the present invention is therefore to propose a security element, such as a security wire, strip or patch that further improves the protection of the document in which it is incorporated.
  • the Applicant has found that a non-regular arrangement of elementary characters present on at least one of the faces of the security element achieves this goal.
  • the subject of the invention is a flat security element, bearing on at least one of its faces a set of elementary characters, said elementary characters having a variation of shape and / or density and / or size making it possible to show at least one discernable pattern.
  • These patterns may represent alphanumeric patterns, symbols, drawings, or the like.
  • the pattern is discernible, with respect to the background also formed of elementary characters, by the observer who looks in transvision and / or in reflection the security document comprising the security element according to the invention .
  • Patterns are not necessarily discernible when the security element at a short distance, for example by means of a magnifying glass. Indeed, at a short distance, the outlines of the patterns are not clear and the arrangement of the elementary characters appears as random.
  • the density in elementary characters corresponds to the number of elementary characters per unit area of the support of the security element.
  • the variation of the density and / or the shape and / or the size of the elementary characters allows the observer, by the contrast brought by this or these variations, to distinguish zones forming the patterns, the background of the security element.
  • the observer can recognize the patterns.
  • Another advantage of the invention is that this variation makes forgery particularly difficult. Indeed, because of the variable character of the elementary characters, their arrangement is particularly difficult to reproduce.
  • Yet another advantage of the invention is that the security element can be authenticated by verifying the shape and arrangement of the elementary characters by means of a microscope or a suitable magnifying device.
  • the support of the security element according to the invention is preferably made of a transparent or translucent material.
  • the support is made of plastic.
  • Suitable materials are based on polymers selected from the group of polyesters, especially poly (ethylene terephthalate), polypropylenes, polyethylenes, polyvinyl chloride, and mixtures thereof.
  • the support of the security element has a thickness of between 5 and 700 ⁇ m, preferably between 5 and 200 ⁇ m, more preferably between 5 and 50 ⁇ m.
  • the elementary characters disposed on the surface of the security element may be points, and / or straight segments, and / or curved segments and / or combinations thereof.
  • Such a combination may, for example, lead to elementary characters having geometric shapes such as quadrilaterals, triangles, disks, circles, or figures such as stars, quarters or half-moons or the like.
  • the characters placed on the surface of the security element according to the invention have an irregular shape, that is to say a non-geometric shape and variable in dimensions (of so-called "patato ⁇ de” type).
  • the different elementary characters arranged on one of the faces of the security element can all be of the same shape.
  • the security element comprises on its surface a set of elementary characters in the form of stars whose density varies.
  • the security element comprises on its surface a set of stars of different sizes.
  • the different elementary characters arranged on the surface of the security element are not all of the same shape.
  • the security element has on its surface a set of points, curved segments and stars.
  • the elementary characters have different forms, and the forms of the elementary characters of the patterns and the background are common.
  • the bottom as well as the discernable patterns are formed by points and straight segments whose variation in density and / or size will reveal said discernable patterns.
  • the elementary characters arranged in the zone or zones forming one or more patterns are different from the elementary characters arranged outside the zone (s) forming the patterns.
  • the background may consist of dots and patterns of straight segments. It is also possible that each zone forming a pattern consists of elementary characters different from the elementary characters constituting the other zones forming a pattern.
  • the density in elementary characters is constant over the entire security element.
  • the density in elementary characters may be higher in an area corresponding to a pattern so that said pattern will appear to the observer darker than the surrounding background.
  • the density in elementary characters may be lower in an area corresponding to a pattern, so that said pattern will appear to the observer lighter than the surrounding background.
  • the security element comprises on its surface elementary characters consisting of a set of points.
  • the density of these points is higher in the areas forming a pattern than in the bottom of the security element.
  • the elementary characters have a size of between 50 and 100 ⁇ m.
  • the size of the elementary characters of the security element is constant, only the density and / or the shape of said elementary characters varying.
  • the elementary characters consist of dots with a diameter of 60 ⁇ m.
  • the size of the elementary characters arranged on the support of the security element varies.
  • the elementary characters may be smaller in the areas forming the patterns than the elementary characters forming the background, so that said patterns appear clearer than the background that surrounds them.
  • the elementary characters may be larger in the areas forming the patterns than the elementary characters forming the background, so that said patterns appear darker than the background surrounding them.
  • the size, the shape and the density of the elementary characters arranged on the support of the security element according to the invention can vary simultaneously. Their degrees of variation will be chosen by those skilled in the art so as to create zones, corresponding to the patterns, discernable from the bottom of the security element.
  • the security element may consist of an optionally repetitive sequence of sequences, each sequence consisting of a different arrangement of elementary characters varying in shape and / or density and / or in size and forming a background and patterns.
  • the arrangement of the elementary characters on the support of the security element can be provided so that the patterns are discernible only when the security element is folded on itself, by complementarity of several areas to form patterns.
  • this density may be higher in complementary areas corresponding to partial patterns.
  • these complementary zones will be completed so as to show one or more patterns darker than the background.
  • said elementary characters are ink impressions and / or metal deposits.
  • said elementary characters are made of metal.
  • the metal used to make the patterns may be selected from aluminum, copper, chromium, and their alloys.
  • the elementary metal characters can be deposited on the surface of the security element by a partial metallization process. They can also be deposited by metallization of the support surface, followed by partial demetallization.
  • the characters are printed in an opacifying ink.
  • it may be a metallic ink.
  • a suitable metallic ink is for example an ink containing metallic pigments such as copper, aluminum, silver, gold, chromium or iron.
  • the patterns can also be printed in a colored ink, including white or black ink, for example a black ink with pigments containing carbon black.
  • the ink used may, in addition, have luminescence properties, in particular fluorescence or phosphorescence.
  • the basic characters can be prints obtained by rotogravure printing, offset printing, flexographic printing, screen printing or by digital printing.
  • the security element according to the invention may also comprise at least one additional coating.
  • the security element may comprise an electroconductive layer, in particular made of a transparent electroconductive polymer.
  • suitable electroconductive polymers are polyaniline, polyethylene dioxythiophene or their derivatives.
  • the security element may comprise a coating with magnetic properties, in combination or not with the electroconductive coating.
  • the security element may also comprise a coating having magnetism or luminescence properties, in particular fluorescence.
  • the security element according to the invention can be implemented in the form of a security thread intended to be inserted at least partially in a security document.
  • Suitable dimensions are a width of 0.7 to 60 mm, especially 1 to 40 mm, and a length corresponding to the distance between a first and a second opposite edge of the document in which the security element will be inserted.
  • the security element according to the invention may be a patch or a foil intended to be applied to a security document.
  • the security element can then, for example, be arranged in a preferably transparent opening provided in the security document and constitute a window in said document.
  • patch is meant here a flat element of reduced dimensions relative to the dimensions of the security document and foil a thin element, flat, elongated, these elements being affixable to the surface of a document, for example by transfer.
  • the invention also relates to a security sheet incorporating the security element described above.
  • a security sheet is here a sheet, for example a fibrous material and / or a plastic material, which may contain one or more security elements, not printed.
  • the invention also relates to a security article incorporating said security element.
  • the article is a security document, including a means of payment such as a bank note, a check, an identity document such as an identity card, a driver's license, a visa, a passport page and the like.
  • the invention relates to a bill in which is incorporated a security element according to the invention.
  • the security document is a bank note in which is incorporated a security element in the form of a security thread or on which is affixed a patch including a window.
  • the security article may also be a security tag or a package particularly intended for drugs or electronic components or food.
  • the security article according to the invention may comprise at least one fibrous layer especially based on cellulose fibers and / or a layer of plastic material.
  • the Figures 1 to 3 illustrate a security thread according to the invention at different scales of magnification.
  • the security thread (1) comprises a transparent support (2) made of polyethylene terephthalate, with a width of 3 mm, a length of 30 mm and a thickness of 30 ⁇ m, on which printed characters (3) are printed. circle, stars, hexagons and ovals. In the illustrated example, the size and density of the characters vary so as to form a bottom (4) dark and patterns (5) alphanumeric clear discernable.
  • the shapes of the characters (3) in the pattern (5) are common to those of the background (4). As can be seen by comparing the Figures 1 to 3 the larger the magnification, the more identifiable the characters (3) but the less the pattern (5) is discernible, making the security thread (1) very difficult to reproduce.
  • a real size, the pattern (5) is perfectly discernable, the bottom (4) as the pattern (5) appear almost united, and the observer does not perceive the precise form of each character (3) printed on the surface of the transparent support (2).

Description

L'invention concerne un élément de sécurité plat comprenant un motif discernable, ainsi que la feuille ou l'article de sécurité le contenant.The invention relates to a flat security element comprising a discernible pattern and the sheet or security article containing it.

Dans l'industrie des documents de sécurité, on utilise couramment des fils de sécurité qui sont incorporés dans ces documents. De tels fils peuvent porter des inscriptions imprimées, mais ils peuvent présenter l'inconvénient d'être trop visibles en lumière réfléchie et par conséquent relativement facilement reproductibles par des contrefacteurs ou des faussaires qui impriment le motif du fil sur le papier.In the security document industry, security threads are commonly used which are incorporated in these documents. Such yarns may have printed indicia, but they may have the disadvantage of being too conspicuous in reflected light and therefore relatively easily reproducible by counterfeiters or forgers who print the pattern of the yarn on the paper.

On connaît par le document EP 536 855 un fil de sécurité comprenant un support plastique et des inscriptions obtenues par dépôt de métal de sorte que lorsque le fil est incorporé dans un document, les inscriptions sont quasiment invisibles en lumière réfléchie et ne peuvent être discernées qu'en lumière transmise. Ainsi, la protection contre la falsification des documents de sécurité est améliorée. Toutefois, lorsque l'épaisseur de papier entre le fil de sécurité et la face extérieure de la couche de papier est trop faible, les inscriptions peuvent apparaître en lumière réfléchie. De plus, les inscriptions étant réalisées par métallisation, le choix des formes et des couleurs est relativement limité.We know from the document EP 536 855 a security wire comprising a plastic support and metal deposition inscriptions so that when the wire is incorporated in a document, the inscriptions are almost invisible in reflected light and can be discerned only in transmitted light. Thus, the protection against falsification of security documents is improved. However, when the thickness of paper between the security thread and the outer face of the paper layer is too small, the inscriptions may appear in reflected light. In addition, the inscriptions being made by metallization, the choice of shapes and colors is relatively limited.

Le but de la présente invention est donc de proposer un élément de sécurité, tel qu'un fil, bande ou patch de sécurité qui améliore encore la protection du document dans lequel il est incorporé.The object of the present invention is therefore to propose a security element, such as a security wire, strip or patch that further improves the protection of the document in which it is incorporated.

La Demanderesse a trouvé qu'un agencement non régulier de caractères élémentaires présents sur au moins une des faces de l'élément de sécurité permet d'atteindre ce but.The Applicant has found that a non-regular arrangement of elementary characters present on at least one of the faces of the security element achieves this goal.

Ainsi, l'invention a pour objet un élément de sécurité plat, portant sur au moins une de ses faces un ensemble de caractères élémentaires, lesdits caractères élémentaires présentant une variation de forme et/ou de densité et/ou de taille permettant de faire apparaître au moins un motif discernable.Thus, the subject of the invention is a flat security element, bearing on at least one of its faces a set of elementary characters, said elementary characters having a variation of shape and / or density and / or size making it possible to show at least one discernable pattern.

Ces motifs peuvent représenter des motifs alphanumériques, des symboles, des dessins ou similaires.These patterns may represent alphanumeric patterns, symbols, drawings, or the like.

Par "discernable" on entend ici que le motif est discernable, par rapport au fond également formé de caractères élémentaires, par l'observateur qui regarde en transvision et/ou en réflexion le document de sécurité comprenant l'élément de sécurité selon l'invention. Les motifs ne sont pas nécessairement discernables lorsqu'on observe l'élément de sécurité à faible distance, par exemple au moyen d'une loupe. En effet, à faible distance, les contours des motifs ne sont pas nets et l'agencement des caractères élémentaires apparaît comme aléatoire.By "discernable" is meant here that the pattern is discernible, with respect to the background also formed of elementary characters, by the observer who looks in transvision and / or in reflection the security document comprising the security element according to the invention . Patterns are not necessarily discernible when the security element at a short distance, for example by means of a magnifying glass. Indeed, at a short distance, the outlines of the patterns are not clear and the arrangement of the elementary characters appears as random.

La densité en caractères élémentaires correspond au nombre de caractères élémentaires par unité de surface du support de l'élément de sécurité.The density in elementary characters corresponds to the number of elementary characters per unit area of the support of the security element.

Selon l'invention, la variation de la densité et/ou de la forme et/ou de la taille des caractères élémentaires permet à l'observateur, par le contraste apporté par cette ou ces variations, de distinguer des zones formant les motifs, du fond de l'élément de sécurité. Ainsi, malgré l'apparence aléatoire de l'agencement des caractères élémentaires, l'observateur peut reconnaître les motifs.According to the invention, the variation of the density and / or the shape and / or the size of the elementary characters allows the observer, by the contrast brought by this or these variations, to distinguish zones forming the patterns, the background of the security element. Thus, despite the random appearance of the arrangement of the elementary characters, the observer can recognize the patterns.

Un autre avantage de l'invention est que cette variation rend la falsification particulièrement difficile. En effet, du fait du caractère variable des caractères élémentaires, leur agencement est particulièrement difficile à reproduire.Another advantage of the invention is that this variation makes forgery particularly difficult. Indeed, because of the variable character of the elementary characters, their arrangement is particularly difficult to reproduce.

Un autre avantage encore de l'invention est que l'on peut authentifier l'élément de sécurité en vérifiant la forme et l'agencement des caractères élémentaires à l'aide d'un microscope ou d'un dispositif grossissant adéquat.Yet another advantage of the invention is that the security element can be authenticated by verifying the shape and arrangement of the elementary characters by means of a microscope or a suitable magnifying device.

Le support de l'élément de sécurité selon l'invention est de préférence réalisé en un matériau transparent ou translucide. En particulier, le support est réalisé en plastique. Des matériaux adaptés sont à base de polymères choisis dans le groupe des polyesters, notamment du poly(éthylène téréphtalate), des polypropylènes, des polyéthylènes, du polychlorure de vinyle, et des mélanges de ceux-ci.The support of the security element according to the invention is preferably made of a transparent or translucent material. In particular, the support is made of plastic. Suitable materials are based on polymers selected from the group of polyesters, especially poly (ethylene terephthalate), polypropylenes, polyethylenes, polyvinyl chloride, and mixtures thereof.

Le support de l'élément de sécurité a une épaisseur comprise entre 5 et 700 µm, de préférence entre 5 et 200 µm, préférentiellement encore entre 5 et 50 µm.The support of the security element has a thickness of between 5 and 700 μm, preferably between 5 and 200 μm, more preferably between 5 and 50 μm.

Selon une forme de réalisation de l'invention, les caractères élémentaires disposés à la surface de l'élément de sécurité peuvent être des points, et/ou des segments droits, et/ou des segments courbes et/ou leurs combinaisons. Une telle combinaison peut, par exemple, conduire à des caractères élémentaires ayant des formes géométriques telles que des quadrilatères, des triangles, des disques, des cercles, ou des figures telles que des étoiles, des quartiers ou des demi-lunes ou similaires.According to one embodiment of the invention, the elementary characters disposed on the surface of the security element may be points, and / or straight segments, and / or curved segments and / or combinations thereof. Such a combination may, for example, lead to elementary characters having geometric shapes such as quadrilaterals, triangles, disks, circles, or figures such as stars, quarters or half-moons or the like.

En variante, les caractères disposés à la surface de l'élément de sécurité selon l'invention, ont une forme irrégulière, c'est à dire une forme non géométrique et variable en dimensions (de type dit "patatoïde").In a variant, the characters placed on the surface of the security element according to the invention have an irregular shape, that is to say a non-geometric shape and variable in dimensions (of so-called "patatoïde" type).

Selon une forme de réalisation de l'invention, les différents caractères élémentaires disposés sur l'une des faces de l'élément de sécurité peuvent tous être de même forme. Par exemple, l'élément de sécurité comprend à sa surface un ensemble de caractères élémentaires en forme d'étoiles dont la densité varie, Dans un autre exemple, l'élément de sécurité comprend à sa surface un ensemble d'étoiles de tailles différentes.According to one embodiment of the invention, the different elementary characters arranged on one of the faces of the security element can all be of the same shape. For example, the security element comprises on its surface a set of elementary characters in the form of stars whose density varies. In another example, the security element comprises on its surface a set of stars of different sizes.

Selon une autre forme de réalisation, les différents caractères élémentaires disposés à la surface de l'élément de sécurité ne sont pas tous de même forme. Par exemple, l'élément de sécurité comprend à sa surface un ensemble de points, de segments courbes et d'étoiles.According to another embodiment, the different elementary characters arranged on the surface of the security element are not all of the same shape. For example, the security element has on its surface a set of points, curved segments and stars.

Selon un mode de réalisation particulier de l'invention, les caractères élémentaires ont différentes formes, et les formes des caractères élémentaires des motifs et du fond sont communes. Par exemple, le fond ainsi que les motifs discernables sont formés par des points et des segments droits dont la variation de densité et/ou de taille permettra de faire apparaître lesdits motifs discernables.According to a particular embodiment of the invention, the elementary characters have different forms, and the forms of the elementary characters of the patterns and the background are common. For example, the bottom as well as the discernable patterns are formed by points and straight segments whose variation in density and / or size will reveal said discernable patterns.

Dans un autre mode de réalisation, les caractères élémentaires agencés dans la ou les zones formant un ou des motif(s) sont différents des caractères élémentaires disposés hors de la ou des zone(s) formant les motifs. Ainsi, par exemple, le fond peut être constitué de points et les motifs de segments droits. Il est également possible que chaque zone formant un motif soit constituée de caractères élémentaires différents des caractères élémentaires constituant les autres zones formant un motif.In another embodiment, the elementary characters arranged in the zone or zones forming one or more patterns are different from the elementary characters arranged outside the zone (s) forming the patterns. Thus, for example, the background may consist of dots and patterns of straight segments. It is also possible that each zone forming a pattern consists of elementary characters different from the elementary characters constituting the other zones forming a pattern.

Selon un mode de réalisation particulier de l'invention, la densité en caractères élémentaires est constante sur l'ensemble de l'élément de sécurité.According to a particular embodiment of the invention, the density in elementary characters is constant over the entire security element.

Selon un autre mode de réalisation, la densité en caractères élémentaires peut être plus élevée dans une zone correspondant à un motif de sorte que ledit motif apparaîtra à l'observateur plus foncé que le fond qui l'entoure.According to another embodiment, the density in elementary characters may be higher in an area corresponding to a pattern so that said pattern will appear to the observer darker than the surrounding background.

Inversement, la densité en caractères élémentaires peut être moins élevée dans une zone correspondant à un motif, de sorte que ledit motif apparaîtra à l'observateur plus clair que le fond qui l'entoure.Conversely, the density in elementary characters may be lower in an area corresponding to a pattern, so that said pattern will appear to the observer lighter than the surrounding background.

Selon un mode de réalisation préféré de l'invention, l'élément de sécurité comporte à sa surface des caractères élémentaires constitués par un ensemble de points. La densité de ces points est plus élevée dans les zones formant un motif que dans le fond de l'élément de sécurité.According to a preferred embodiment of the invention, the security element comprises on its surface elementary characters consisting of a set of points. The density of these points is higher in the areas forming a pattern than in the bottom of the security element.

Selon un mode de réalisation de l'invention, les caractères élémentaires ont une taille comprise entre 50 et 100 µm.According to one embodiment of the invention, the elementary characters have a size of between 50 and 100 μm.

Selon un mode de réalisation de l'invention, la taille des caractères élémentaires de l'élément sécurité est constante, seules la densité et/ou la forme desdits caractères élémentaires variant. Par exemple, les caractères élémentaires sont constitués de points d'un diamètre de 60µm.According to one embodiment of the invention, the size of the elementary characters of the security element is constant, only the density and / or the shape of said elementary characters varying. For example, the elementary characters consist of dots with a diameter of 60μm.

Selon un autre mode de réalisation, la taille des caractères élémentaires agencés sur le support de l'élément de sécurité varie. En particulier, lorsque la densité et la forme des caractères élémentaires sont constantes, les caractères élémentaires peuvent être de taille plus petite au niveau des zones formant les motifs que celle des caractères élémentaires formant le fond, de sorte que lesdits motifs apparaissent plus clairs que le fond qui les entoure. Inversement, les caractères élémentaires peuvent être de taille plus élevée au niveau des zones formant les motifs que celle des caractères élémentaires formant le fond, de sorte que lesdits motifs apparaissent plus foncés que le fond qui les entoure.According to another embodiment, the size of the elementary characters arranged on the support of the security element varies. In particular, when the density and shape of the elementary characters are constant, the elementary characters may be smaller in the areas forming the patterns than the elementary characters forming the background, so that said patterns appear clearer than the background that surrounds them. Conversely, the elementary characters may be larger in the areas forming the patterns than the elementary characters forming the background, so that said patterns appear darker than the background surrounding them.

Selon un mode de réalisation particulier, la taille, la forme et la densité des caractères élémentaires agencés sur le support de l'élément de sécurité selon l'invention peuvent varier simultanément. Leurs degrés de variation seront choisis par l'homme du métier de façon à créer des zones, correspondant aux motifs, discernables du fond de l'élément de sécurité.According to a particular embodiment, the size, the shape and the density of the elementary characters arranged on the support of the security element according to the invention can vary simultaneously. Their degrees of variation will be chosen by those skilled in the art so as to create zones, corresponding to the patterns, discernable from the bottom of the security element.

Selon un mode de réalisation de l'invention, l'élément de sécurité peut être constitué d'un enchaînement, optionnellement répétitif, de séquences, chaque séquence étant constituée d'un agencement différent de caractères élémentaires variant en forme et/ou en densité et/ou en taille et formant un fond et des motifs.According to one embodiment of the invention, the security element may consist of an optionally repetitive sequence of sequences, each sequence consisting of a different arrangement of elementary characters varying in shape and / or density and / or in size and forming a background and patterns.

Selon un autre mode de réalisation, l'agencement des caractères élémentaires sur le support de l'élément de sécurité peut être prévu de sorte que les motifs ne sont discernables que lorsque l'élément de sécurité est plié sur lui-même, par complémentarité de plusieurs zones destinées à former des motifs. Par exemple, dans le cas d'un élément de sécurité présentant un agencement de caractères élémentaires dont la densité varie, cette densité peut être plus élevée dans des zones complémentaires correspondant à des motifs partiels. Lorsque l'élément de sécurité sera plié, ces zones complémentaires se compléteront de façon à faire apparaître un ou des motifs plus foncés que le fond.According to another embodiment, the arrangement of the elementary characters on the support of the security element can be provided so that the patterns are discernible only when the security element is folded on itself, by complementarity of several areas to form patterns. For example, in the case of a security element having an arrangement of elementary characters whose density varies, this density may be higher in complementary areas corresponding to partial patterns. When the security element is folded, these complementary zones will be completed so as to show one or more patterns darker than the background.

Préférentiellement, lesdits caractères élémentaires sont des impressions d'encre et/ou des dépôts de métal.Preferably, said elementary characters are ink impressions and / or metal deposits.

Selon un mode de réalisation de l'invention, lesdits caractères élémentaires sont en métal. En particulier le métal utilisé pour réaliser les motifs peut être choisi parmi l'aluminium, le cuivre, le chrome, et leurs alliages. Par exemple, les caractères élémentaires en métal peuvent être déposés à la surface de l'élément de sécurité par un procédé de métallisation partielle. Ils peuvent également être déposés par métallisation de la surface du support, suivie d'une démétallisation partielle.According to one embodiment of the invention, said elementary characters are made of metal. In particular the metal used to make the patterns may be selected from aluminum, copper, chromium, and their alloys. For example, the elementary metal characters can be deposited on the surface of the security element by a partial metallization process. They can also be deposited by metallization of the support surface, followed by partial demetallization.

Selon un cas préféré de l'invention, les caractères sont imprimés en une encre opacifiante. En particulier il peut s'agir d'une encre métallique. Une encre métallique adaptée est par exemple une encre contenant des pigments métalliques tels que le cuivre, l'aluminium, l'argent, l'or, le chrome ou le fer. On peut également imprimer les motifs en une encre colorée, y compris blanche ou noire, par exemple une encre noire avec des pigments contenant du noir de carbone.According to a preferred case of the invention, the characters are printed in an opacifying ink. In particular, it may be a metallic ink. A suitable metallic ink is for example an ink containing metallic pigments such as copper, aluminum, silver, gold, chromium or iron. The patterns can also be printed in a colored ink, including white or black ink, for example a black ink with pigments containing carbon black.

Selon, un autre cas particulier, l'encre utilisée peut, de plus, présenter des propriétés de luminescence, en particulier de fluorescence ou de phosphorescence.According to another particular case, the ink used may, in addition, have luminescence properties, in particular fluorescence or phosphorescence.

Par exemple, les caractères élémentaires peuvent être des impressions obtenues par impression par rotogravure, impression offset, impression flexographique, par sérigraphie ou encore par impression numérique.For example, the basic characters can be prints obtained by rotogravure printing, offset printing, flexographic printing, screen printing or by digital printing.

L'élément de sécurité selon l'invention peut également comprendre au moins un revêtement supplémentaire.The security element according to the invention may also comprise at least one additional coating.

Selon un cas particulier de l'invention, l'élément de sécurité peut comprendre une couche électroconductrice en particulier réalisée en un polymère électroconducteur transparent. Des exemples de polymères électroconducteurs adaptés sont une polyaniline, un polyéthylène dioxythiophène ou leurs dérivés. L'élément de sécurité peut comprendre un revêtement doté de propriétés magnétiques, en combinaison ou non avec le revêtement électroconducteur.According to a particular case of the invention, the security element may comprise an electroconductive layer, in particular made of a transparent electroconductive polymer. Examples of suitable electroconductive polymers are polyaniline, polyethylene dioxythiophene or their derivatives. The security element may comprise a coating with magnetic properties, in combination or not with the electroconductive coating.

Selon un autre cas de l'invention, l'élément de sécurité peut également comprendre un revêtement présentant des propriétés de magnétisme ou de luminescence, notamment de fluorescence.According to another case of the invention, the security element may also comprise a coating having magnetism or luminescence properties, in particular fluorescence.

Selon un mode de réalisation préféré, l'élément de sécurité selon l'invention peut être réalisé sous la forme d'un fil de sécurité destiné à être inséré au moins partiellement dans un document de sécurité. Des dimensions adaptées sont une largeur de 0,7 à 60 mm, notamment de 1 à 40 mm, et une longueur correspondant à la distance entre un premier et un deuxième bord opposés du document dans lequel l'élément de sécurité sera inséré.According to a preferred embodiment, the security element according to the invention can be implemented in the form of a security thread intended to be inserted at least partially in a security document. Suitable dimensions are a width of 0.7 to 60 mm, especially 1 to 40 mm, and a length corresponding to the distance between a first and a second opposite edge of the document in which the security element will be inserted.

En variante, l'élément de sécurité selon l'invention peut être un patch ou un foil destiné à être appliqué sur un document de sécurité. L'élément de sécurité peut alors, par exemple, être disposé dans une ouverture de préférence transparente prévue dans le document de sécurité et constituer une fenêtre dans le ledit document.In a variant, the security element according to the invention may be a patch or a foil intended to be applied to a security document. The security element can then, for example, be arranged in a preferably transparent opening provided in the security document and constitute a window in said document.

Par patch, on entend ici un élément plat de dimensions réduites par rapport aux dimensions du document de sécurité et par foil un élément mince, plat, allongé, ces éléments étant apposables à la surface d'un document, par exemple par transfert.By patch is meant here a flat element of reduced dimensions relative to the dimensions of the security document and foil a thin element, flat, elongated, these elements being affixable to the surface of a document, for example by transfer.

L'invention concerne aussi une feuille de sécurité incorporant l'élément de sécurité décrit ci-dessus. Une feuille de sécurité est ici une feuille, par exemple en un matériau fibreux et/ou en un matériau plastique, pouvant contenir un ou plusieurs éléments de sécurité, non imprimée.The invention also relates to a security sheet incorporating the security element described above. A security sheet is here a sheet, for example a fibrous material and / or a plastic material, which may contain one or more security elements, not printed.

L'invention concerne également un article de sécurité incorporant ledit élément de sécurité. Ledit article est un document de sécurité, notamment un moyen de paiement tel qu'un billet de banque, un chèque, un document d'identité tel qu'une carte d'identité, un permis de conduire, un visa, une page de passeport et similaires. En particulier, l'invention concerne un billet de banque dans lequel est incorporé un élément de sécurité selon l'invention. De préférence le document de sécurité est un billet de banque dans lequel est incorporé un élément de sécurité sous la forme d'un fil de sécurité ou sur lequel est apposé un patch notamment dans une fenêtre. L'article de sécurité peut être aussi une étiquette de sécurité ou un emballage notamment destiné' aux médicaments ou aux composants électroniques ou aux aliments.The invention also relates to a security article incorporating said security element. The article is a security document, including a means of payment such as a bank note, a check, an identity document such as an identity card, a driver's license, a visa, a passport page and the like. In particular, the invention relates to a bill in which is incorporated a security element according to the invention. Preferably the security document is a bank note in which is incorporated a security element in the form of a security thread or on which is affixed a patch including a window. The security article may also be a security tag or a package particularly intended for drugs or electronic components or food.

L'article de sécurité selon l'invention peut comporter au moins une couche fibreuse notamment à base de fibres cellulosiques et/ou une couche en matière plastique.The security article according to the invention may comprise at least one fibrous layer especially based on cellulose fibers and / or a layer of plastic material.

L'invention va maintenant être décrite plus en détails à l'aide du dessin annexé dans lequel :

  • la figure 1 représente une vue de face de l'élément de sécurité selon un mode de réalisation de l'invention, à sa taille réelle
  • la figure 2 représente une vue de face de l'élément de sécurité de la figure 1, agrandi 5 fois
  • la figure 3 représente une vue de face de l'élément de sécurité de la figure 1, agrandi 10 fois
The invention will now be described in more detail with the aid of the accompanying drawing in which:
  • the figure 1 represents a front view of the security element according to one embodiment of the invention, to its real size
  • the figure 2 represents a front view of the security element of the figure 1 , enlarged 5 times
  • the figure 3 represents a front view of the security element of the figure 1 , enlarged 10 times

Les figures 1 à 3 illustrent un fil de sécurité selon l'invention à différentes échelles de grossissement. Le fil de sécurité (1) comporte un support transparent (2) en polyéthylène téréphtalate, d'une largeur de 3mm, d'une longueur de 30mm et d'une épaisseur de 30µm, sur lequel sont imprimés des caractères (3) en forme de cercle, d'étoiles, d'hexagones et d'ovales. Dans l'exemple illustré, la taille et la densité des caractères varient de façon à former un fond (4) foncé et des motifs (5) alphanumériques clairs discernables. Les formes des caractères (3) dans le motif (5) sont communes à celles du fond (4). Comme on peut le voir en comparant les figures 1 à 3, plus l'agrandissement est grand, plus les caractères (3) sont identifiables mais moins le motif (5) est discernables, ce qui rend le fil de sécurité (1) très difficile à reproduire. A taille réelle, le motif (5) est parfaitement discernable, le fond (4) comme le motif (5) apparaissent presque unis, et l'observateur ne perçoit pas la forme précise de chacun des caractères (3) imprimés à la surface du support transparent (2).The Figures 1 to 3 illustrate a security thread according to the invention at different scales of magnification. The security thread (1) comprises a transparent support (2) made of polyethylene terephthalate, with a width of 3 mm, a length of 30 mm and a thickness of 30 μm, on which printed characters (3) are printed. circle, stars, hexagons and ovals. In the illustrated example, the size and density of the characters vary so as to form a bottom (4) dark and patterns (5) alphanumeric clear discernable. The shapes of the characters (3) in the pattern (5) are common to those of the background (4). As can be seen by comparing the Figures 1 to 3 the larger the magnification, the more identifiable the characters (3) but the less the pattern (5) is discernible, making the security thread (1) very difficult to reproduce. A real size, the pattern (5) is perfectly discernable, the bottom (4) as the pattern (5) appear almost united, and the observer does not perceive the precise form of each character (3) printed on the surface of the transparent support (2).

Claims (15)

  1. A flat security element comprising a support bearing on at least one of its faces a set of elementary characters, characterized in that :
    said elementary characters are set out with a variation in shape and/or in density and/or in size so as to reveal at least one discernible design, and at a close range, outlines of the design are not sharp and the layout of the elementary characters appears to be random.
  2. The security element as claimed in claim 1, characterized in that the support of said security element is made of a transparent or translucent material.
  3. The security element as claimed in the preceding claim, characterized in that said transparent or translucent material is based on a polymer chosen from the group of polyesters, in particular of poly (ethylene terephtalate), polypropylenes, polyethylenes and polyvinyl chloride.
  4. The security element as claimed in any one of the preceding claims, characterized in that said support of the security element has a thickness of between 5 and 700µm, preferably between 5 and 200µm, in particular between 5 and 50µm.
  5. The security element as claimed in claim 4, characterized in that the security element has a width of between 1 mm and 40 mm.
  6. The security element as claimed in any one of the preceding claims, characterized in that said discernible design represents at least one alphanumeric design and/or a pattern and/or a symbol.
  7. The security element as claimed in any one of the preceding claims, characterized in that said elementary characters are dots and/or segments of straight lines and/or segments of curves and/or combinations thereof.
  8. The security element as claimed in any one of the preceding claims, characterized in that said elementary characters are printed.
  9. The security element as claimed in any one of claims 1 to 7, characterized in that said elementary characters are deposits of metal.
  10. The security element as claimed in any one of the preceding claims, characterized in that it comprises at least one additional coating having properties of electrical conductivity, and/or magnetic properties and/or luminescent properties, in particular fluorescence.
  11. The security element as claimed in claim 10, characterized in that said coating is a transparent electrically conductive polymer.
  12. The security element as claimed in any one of the preceding claims, characterized in that said security element is a security thread, a patch or a foil.
  13. A security sheet, characterized in that it comprises at least one security element as claimed in any one of the preceding claims.
  14. The security item as claimed in the preceding claim, characterized in that the security item is a security document, in particular a means of payment, in particular a banknote or a check, an identity document, in particular an identity card, a driver's license, a visa or a page of a passport.
  15. The security item as claimed in any one of claims 13 or 14, characterized in that the security item is a security label or a wrapper.
EP07788970.7A 2006-06-06 2007-06-06 Safety element comprising a detectable design Revoked EP2024566B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL07788970T PL2024566T3 (en) 2006-06-06 2007-06-06 Safety element comprising a detectable design

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0605020A FR2901812B1 (en) 2006-06-06 2006-06-06 SECURITY ELEMENT COMPRISING A DISCERNABLE MOTIF
PCT/FR2007/051386 WO2007141459A2 (en) 2006-06-06 2007-06-06 Safety element comprising a detectable design

Publications (2)

Publication Number Publication Date
EP2024566A2 EP2024566A2 (en) 2009-02-18
EP2024566B1 true EP2024566B1 (en) 2013-08-14

Family

ID=37621958

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07788970.7A Revoked EP2024566B1 (en) 2006-06-06 2007-06-06 Safety element comprising a detectable design

Country Status (8)

Country Link
US (1) US20100295289A1 (en)
EP (1) EP2024566B1 (en)
BR (1) BRPI0712656A2 (en)
CA (1) CA2654396A1 (en)
ES (1) ES2432569T3 (en)
FR (1) FR2901812B1 (en)
PL (1) PL2024566T3 (en)
WO (1) WO2007141459A2 (en)

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DE102007057658A1 (en) * 2007-02-07 2009-06-04 Leonhard Kurz Stiftung & Co. Kg Security document in the form of a multilayer film body for viewing in incident light and in transmitted light, comprises a carrier film and a partial metallic reflective layer in a first region that is transparent or semi-transparent
JP5343357B2 (en) * 2008-01-08 2013-11-13 凸版印刷株式会社 Method for producing anti-counterfeit paper medium
FR2989932A1 (en) 2012-04-27 2013-11-01 Arjowiggins Security SECURITY ELEMENT AND DOCUMENT INCORPORATING SUCH A MEMBER
FR3033735B1 (en) 2015-03-16 2022-03-04 Arjowiggins Security SECURITY ELEMENT AND SECURE DOCUMENT
US20180130108A1 (en) * 2016-11-09 2018-05-10 Morphotrust Usa, Llc Embedding security information in an image
WO2018126187A1 (en) 2016-12-30 2018-07-05 Jones Robert L Embedded variable line patterns
US11314996B1 (en) 2019-06-04 2022-04-26 Idemia Identity & Security USA LLC Embedded line patterns using square-wave linecode

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Also Published As

Publication number Publication date
FR2901812B1 (en) 2008-12-05
BRPI0712656A2 (en) 2013-04-02
WO2007141459A2 (en) 2007-12-13
WO2007141459A3 (en) 2008-01-31
US20100295289A1 (en) 2010-11-25
CA2654396A1 (en) 2007-12-13
EP2024566A2 (en) 2009-02-18
FR2901812A1 (en) 2007-12-07
ES2432569T3 (en) 2013-12-04
PL2024566T3 (en) 2014-01-31

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