WO2012176169A1 - Fil de sécurité - Google Patents
Fil de sécurité Download PDFInfo
- Publication number
- WO2012176169A1 WO2012176169A1 PCT/IB2012/053175 IB2012053175W WO2012176169A1 WO 2012176169 A1 WO2012176169 A1 WO 2012176169A1 IB 2012053175 W IB2012053175 W IB 2012053175W WO 2012176169 A1 WO2012176169 A1 WO 2012176169A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- security
- opacity
- elements
- optically variable
- thread
- Prior art date
Links
Classifications
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- 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
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- 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
- B42D25/20—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof characterised by a particular use or purpose
- B42D25/21—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof characterised by a particular use or purpose for multiple purposes
-
- 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
- B42D25/36—Identification or security features, e.g. for preventing forgery comprising special materials
- B42D25/369—Magnetised or magnetisable materials
-
- 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
- B42D25/36—Identification or security features, e.g. for preventing forgery comprising special materials
- B42D25/373—Metallic materials
-
- 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
- B42D25/40—Manufacture
- B42D25/405—Marking
- B42D25/41—Marking using electromagnetic radiation
-
- 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
- B42D25/40—Manufacture
- B42D25/405—Marking
- B42D25/425—Marking by deformation, e.g. embossing
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- 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
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- B42D2035/20—
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- B42D2035/44—
-
- 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
- B42D25/40—Manufacture
- B42D25/475—Cutting cards
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T83/00—Cutting
- Y10T83/04—Processes
- Y10T83/0405—With preparatory or simultaneous ancillary treatment of work
Definitions
- the present invention relates to security threads and valuable or security documents incorporating such threads.
- Security threads are security features that are often used in banknotes to help make counterfeits more difficult and to authenticate them.
- EP 1 819 525 B1 discloses a security element comprising platelet-shaped pigments which can be oriented under the effect of a magnetic field so as to make it possible to observe, for a direction of observation substantially parallel to the orientation of the pigments , an underlying impression.
- the security element has two zones whose pigments are oriented differently so that the appearance / disappearance of the underlying patterns can be observed when the direction of observation changes.
- the security element may be in the form of a wire.
- the invention aims to further improve the security son, and it succeeds, according to a first aspect, with a security thread to be incorporated into a security document, comprising at least two areas respectively of share and another of a dividing line extending longitudinally along the wire, a first optically variable security element in the first zone and a second optically variable security element in the second zone, the first and second elements being distant one and the other of the separation line and arranged so that for a first direction of observation the two elements have different aspects from each other and for a second direction of observation, different from the first, the two elements have, on the one hand, each one changed in aspect with respect to their aspect when observed according to the first direction of observation, and on the other hand have different from each other.
- the invention reduces the risk of superposition of the first and second security elements, which would have the effect of impairing the obtaining of the desired visual effects in the overlap zone.
- the neutral zone between the two elements allows easier production, because it allows for example to overcome identification problems when the security elements are made by printing.
- the aforementioned separation line may be median, and the first and second zones may be symmetrical to each other with respect to this line.
- the presence of a gap between the first and second elements, in addition to facilitating the manufacture of the wire, further allows, if desired, to have a third security element on the wire.
- This third element may extend longitudinally and be located at least partially visually between the first and second optically variable elements.
- the third element makes it possible to raise the security level of the security thread in addition to serving as tolerance zone for the realization of the two aforementioned elements.
- the third element may have a first, second or third level security feature.
- First-level security means security that is detectable by the eye, in daylight, or in artificial light, without the use of a particular device.
- Additional security elements are detectable only with a relatively simple apparatus, such as a lamp emitting in the ultraviolet (UV) or infrared (IR). These security elements may be visible to the naked eye or not, being for example luminescent under a lighting of a Wood lamp emitting in a wavelength of 365 nm. These security elements are said to be second level.
- UV ultraviolet
- IR infrared
- security elements require for their detection a more sophisticated detection device. These security elements are for example capable of generating a specific signal when they are subjected, simultaneously or not, to one or more external excitation sources. The automatic detection of the signal makes it possible to authenticate, if necessary, the element.
- These security elements comprise, for example, tracers in the form of active materials, particles or fibers, capable of generating a specific signal when these tracers are subjected to optronic, electrical, magnetic or electromagnetic excitation. These security elements are said to be third level.
- the third security element may comprise, or even consist of: a demetallization, in particular a demetallization which represents the same pattern as a pattern printed between the first and second optically variable zones or at the level thereof, so as to constitute a comparison element,
- a magnetic tape creating a third level security, or a colored element or effect goniochromatic, metallic, holographic, among other possibilities.
- the security thread preferably has a width ranging from 2 to 10 mm, more preferably from 4 to 6 mm.
- the neutral zone has a width of preferably 0.2 to 1.5 mm, more preferably 0.4 to 0.8 mm.
- the third element may be superimposed on or at least partially cover one of the first and second optically variable elements, when the security thread is viewed from the front.
- the third security element may be wider than the interval between the first and second security elements.
- the third element can be superimposed on or at least partially cover both the first and second security elements.
- the third element may extend in a continuous or discontinuous strip.
- the third member may be disposed on one side of a wire strand carrier and the first and second members may be disposed on the opposite side of the carrier.
- the support may be made of a thermoplastic material, preferably a transparent thermoplastic material, more preferably polyester or PET.
- the first and second security elements may comprise the same pigment, preferably reflecting, which is deposited differently on the first and second zones, in particular with a different orientation.
- the pigment may be magnetic and platelet-shaped, as in EP 1 819 525 B1.
- the pigment particles may coat underlying prints or pattern elements made otherwise than by printing. As the pigment particles are oriented, there is a first angle of observation according to which the particles reflect, in this case the printed pattern or the color below is not visible, and a second angle of observation according to which the particles are not oriented so as to be able to reflect, and in this case the pattern or the color arranged below is visible.
- the first and second optically variable elements may also each comprise a lenticular array.
- the lenses of the lenticular network make it possible to observe or not, depending on the angle of observation, at least one underlying pattern element.
- the security thread comprises a variable opacity element superimposed at least partially on the first and second optically variable elements, defining first and second zones of lesser opacity superimposed on at least partially respectively with the first and second optically variable elements.
- the variable opacity element may also be superimposed on the third security element and may define a third zone of lesser opacity superimposed at least partially on the third security element, through which the third security element may be visible.
- the variable opacity element can define a surrounding area of greater opacity, extending around the first, second and third zones.
- opacity we consider the attenuation of the intensity of an illuminant that passes through a material.
- the opacity of a material can vary between zero opacity (or transparency) and total opacity, where the illuminant is not transmitted.
- illumination is meant light visible to the human eye, for example daylighting illuminant D65, defined by CIE Lab 1976, infrared (IR) or ultraviolet (UV) radiation.
- IR infrared
- UV ultraviolet
- variable opacity is considered an element that has in different areas different absorption properties of a predefined illuminant, including visible light.
- the security thread for observation in visible light, the security thread comprises a variable opacity element obtained by metallization / demetallization.
- This element has a surrounding area of greater opacity corresponding to a metal layer and areas of less opacity corresponding to openings resulting from the demetallization.
- the metal layer appears completely opaque and the openings are transparent.
- the variable opacity element for an observation under a UV or IR illuminant, comprises an impression, on the zone of greater opacity, with an ink comprising a transparent pigment when 'observed in visible but opaque light when illuminated under UV or IR.
- the first (respectively second) optically variable element When observed in reflection in a first direction of observation through the first (respectively the second) zone of least opacity, the first (respectively second) optically variable element may appear transparent (respectively reflective). When observed in a second direction of observation different from the first through the first (respectively the second) zone of least opacity, it is the opposite that can occur, the first element (respectively the second) optically variable appearing reflective (respectively transparent).
- the first and second optically variable elements may comprise a luminescent compound, for example a fluorescent compound, this compound being present in one or more units.
- a luminescent compound for example a fluorescent compound, this compound being present in one or more units.
- the zones of the first and second optically variable elements observed respectively through the first and second zones of least opacity may take the form of a letter and / or a text and / or a drawing and / or a pattern.
- variable opacity element extends longitudinally along a support of the security thread, and may be in the form of a band.
- the zone of greater opacity can define the opposite edges of this band, which can be continuous, the areas of less opacity extending behind these edges.
- the width of the variable opacity element is between 1 to 10 mm, more preferably from 4 to 8 mm.
- variable opacity element may be totally or partially superimposed on the first and second optically variable elements.
- the area of greater opacity of the variable opacity element may be continuous. Alternatively, it may be discontinuous. For example, it is separated into at least two distinct parts by a frame or is pixelated, so for example to form a pattern in three dimensions.
- the area of greater opacity can be discontinuous at the microscopic scale, while appearing substantially continuous to the naked eye.
- its opacity is then intermediate between that of a full demetallized zone and that of a fully metallized zone.
- the area of greater opacity is pixelated (including halftone), the areas of less opacity being devoid of pixels or frame.
- the area of greater opacity can form a three-dimensional image when observed in transmitted light.
- the variable opacity element can totally or partially cover the first and second optically variable elements.
- the area covered by the first and second areas of least opacity may be less extensive than the area covered by the surrounding area of greater opacity.
- the area covered by the first and second areas of least opacity is 1.5 times, preferably twice, more preferably 3 times, even 5 times, or even more than 10 times, less than the area covered by the surrounding area of greater opacity.
- first and second areas of less opacity in the form of letters, a text, a pattern, a drawing of small dimensions compared to those of the security thread. In this way, it is particularly possible to focus on these first and second areas of least opacity the attention of the observer who authenticates a document comprising such a security thread.
- the area covered by the first and second areas of least opacity may be larger than the area covered by the surrounding area of greater opacity.
- a particular optical characteristic such as a bright reflection effect
- a variation of the visual appearance of the first and second optically variable elements, through the first and second areas of least opacity, is obtained by selecting the suitably variable opacity element.
- first and second areas of least opacity in the form of a letter, a text, a pattern or a drawing so that they present alone in the security thread an aspect optically variable.
- the superposition of the zone of greater opacity with the first and second optically variable elements respectively defines fourth and fifth optically variable zones, so that when observed in a first direction observation, respectively in a second direction different from the first, the fourth optically variable zone, respectively the fifth optically variable zone, has a different visual appearance of the fifth zone, respectively the fourth zone, and in particular appears clearer, respectively darker.
- variable opacity element may have an opacity depending on the type of illuminant used for the observation.
- variable opacity element may comprise, or even be constituted by: a metallization / demetallization, in particular with a demetallization which represents one or more letters, a drawing, a pattern; in this case, the zones of less opacity correspond to the demetallized zones and the zones of greater opacity correspond to the metallized zones; the pattern (s) formed by the demetallized zones can be found elsewhere on the document that integrates the security thread; for example, the value of the denomination, the currency or the name of the country or issuing bank; the metal may be chosen for example from silver, aluminum, nickel, cobalt, tin, gold, copper, and from metal alloys, especially brass or bronze; the metal can be replaced by any dielectric material; mirror or interference-effect dielectric elements consisting of an alternation of high and low index layers, for example hafnium dioxide and silica, for example obtained by ion etching, may be used,
- an element comprising a rasterized image, including a raster, producing a visual effect of depth when observed in transmitted light, such as that described in EP-A-1674286.
- the image can represent a portrait, an animal, a landscape, a symbol, notably alphanumeric, a line, a guilloche. It may comprise a set of points appearing more or less distant, when observed in transmitted light. These points may be of various shapes and / or sizes, possibly with specific frequency modulation. For example, the dots may be square, round, diamond, or elongated, such as a line, and may form a frame. The points may line up in inclined lines at specific angles, with specific frequency modulation. Points can define positive and / or negative images.
- the rasterized image may include observable points under ultraviolet (UV) and / or infrared (IR) radiation. These points may contain pigments visible under UV or IR radiation and invisible in daylight.
- UV ultraviolet
- IR infrared
- the rasterized image may contain dots that, at least partially, represent coded data, particularly in matrix form.
- the code may be related to the spatial position of the points and / or to opacities and / or to sizes and / or shapes and / or thicknesses and / or colors of said points.
- the pixellated image is made of at least one material selected from metals, alloys, varnishes and metallic inks, varnishes and metallic-looking lacquers.
- the points are preferentially applied to the support of the security thread and / or to the optically variable elements by printing and / or by the techniques of metallization and / or partial demetallization.
- the rasterized image can be made in several layers, applied on the security wire support, and / or on the first and second optically variable elements, and preferably have different optical densities.
- these different layers at different optical densities produce a pattern, symbols, letters, lines that define a visual effect of depth when observed in transmitted light.
- Other layers with The optical and / or magnetic and / or electrical properties described in EP-A-1674286 may be present.
- visual depth effect is considered a visual effect by which different elements defining a plane image, including pixels of the image, appear more or less distant to the observer due to a perspective effect.
- a mark or image consisting of a frame or dots appears as a mark or a three-dimensional image when viewed in transmitted light.
- the third zone mentioned above corresponds to an aperture in the element of variable opacity. It can also be defined by a region of a transparent material of the variable opacity element through which an illuminant, including visible light, is transmitted.
- the third element can also be superimposed on or covered, especially entirely, by the zone of greater opacity. In a particular embodiment, it is invisible to the observer under visible light and is detected under another illuminant, for example ultraviolet (UV) or infrared (IR) radiation.
- UV ultraviolet
- IR infrared
- the third member may be disposed on one side of the holder and the first and second members may be disposed on the opposite side of the holder.
- the color difference ⁇ in the CIE Lab color space between the region of the document which extends around the security thread and the variable opacity element is less than 5, better than 2.
- the color of the variable opacity element is close to that of the document around the security thread.
- the security thread can not be visually distinguished from the region of the document adjacent to the security thread.
- a pattern defined by the first and / or second zone of less opacity for example becomes reflective while the color of the zone of greater opacity and of the document around the variable opacity element is substantially unchanged.
- the pattern (s) defined by the areas of least opacity of the security thread can be found elsewhere on the security document and thus establish a link between the security document and the security thread.
- the reason represents for example the currency, the name of the bank or the value of the cut.
- the first optically variable element can be made on a film in the form of spaced apart parallel strips and the second optically variable member to be in the form of spaced parallel strips interwoven with the strips formed by the first member, with a spacing between the strips of the first member and the strips of the first member.
- second element the film being cut at half-width of the strips of the first element and strips of the second element to form a plurality of security son.
- the strips can be made for example by printing, for example in successive passes on the film.
- the film can be returned between the passes, for example by rotating about an axis perpendicular to the surface of the film, which is a simple and effective way to orient the pigment particles differently, especially in the case where the first and second security elements are orientable reflective particles.
- the invention also relates to a security document incorporating a security thread according to the invention, as defined above, the wire extending from one edge of the document to an opposite edge.
- the invention also relates to a security document, comprising a substrate and a security thread comprising:
- first optically variable element carried by the support
- second optically variable element carried by the support
- first and second elements having first and second regions, not superimposed on the support
- variable opacity element at least partially covering the first and second regions, defining first and second areas of least opacity superimposed at least partially respectively with the first and second regions and a surrounding area of greater opacity
- the security thread being disposed on the substrate so that the first and second regions are visible through the variable opacity element
- the first and second elements being arranged such that for a first viewing direction, the first and second elements when observed simultaneously through respectively the first and second areas of least opacity different aspects of each other and, for a second direction of observation different from the first, the first and second elements have when observed simultaneously through respectively the first and second areas of least opacity, on the one hand changed appearance with respect to their appearance when observed in the first direction of observation, and secondly have aspects different from each other.
- security document synonymous with "secure document” means a valuable document, for example a means of payment, such as a bank note, a check or a restaurant ticket, a lottery ticket, a title transportation or a ticket giving access to a cultural or sporting event and / or a document for the identification of persons, such as an identity card, a visa, a passport or a driving license.
- the subject of the invention is also a method for authenticating or identifying a document comprising a security thread according to the invention, in which the change of appearance of the first and second optically variable elements is observed by modifying the direction observation of the wire.
- a security feature of the third security element is also detected, this being then present.
- the invention also has for one object a method of manufacturing a security thread according to the invention, which may comprise a step of forming an element of variable opacity when it is present in the security thread.
- this process may comprise a step of preparing a variable opacity element, preferably by demetallization, in particular by etching, of a layer of metal covering the support and / or the first and second optically variable elements, and covered by the printing of a varnish, the latter protecting against the chemical attack.
- a solvent-soluble primer is applied to the support and / or to the first and second optically variable elements according to the negative of the pattern to be produced before the metallization, and then the latter is carried out.
- the chemical attack solubilizes the primer and the metal leaves the support at sites where the soluble primer is present.
- the metal layer is preferably deposited by vacuum metallization.
- the manufacturing method may also include a step of depositing a security thread according to the invention on the security document.
- the security thread is disposed on a substrate of the security document so that the first and second optically variable elements are visible through the variable opacity element.
- FIG. 1 represents, from the front, an example of a document of value according to the invention
- FIG. 2 represents, in cross-section, the security thread
- FIGS. 3 and 4 show exemplary embodiments of the optically variable zones
- FIGS. 5 and 6 illustrate the change of appearance of the wire during a modification of the observation direction
- FIG. 7 is a view similar to FIG. 2 of a variant embodiment of the wire
- FIGS. 8 and 9 illustrate an alternative embodiment of the optically variable zones
- FIGS. 10 and 11 illustrate the change of appearance of the optically variable zones with the modification of the observation direction
- FIGS. 12 and 13 illustrate the production of optically variable zones by printing
- FIGS. 14, 15, 16 and 17 are diagrammatic and partial, in cross-section, of security threads each comprising a variable opacity element, according to different embodiments,
- FIGS. 18 and 19 illustrate the change in appearance of the optically variable zones to which a variable opacity element is superimposed
- FIGS. 20, 21 and 22 illustrate an alternative embodiment of the security thread, in which the variable opacity element comprises a pixelated image
- FIG. 23 illustrates an alternative embodiment of the security thread comprising a frame
- FIGS. 24 and 25 represent, in cross-section, an alternative embodiment of the optically variable zones
- FIGS. 26 and 27 illustrate the change in appearance of the optically variable zones of the variants of FIGS. 24 and 25 with the modification of the observation direction
- FIG. 28 represents a front view of a security document in an exemplary implementation of the invention.
- FIG. 29 represents on an enlarged scale the detail I of the security document of FIG. 28,
- FIG. 30 is a cross-section along XXVIII-XXVIII of FIG. 28, illustrating the window positioning of the security thread in the security document, and
- Figure 31 illustrates a variant of the surface positioning of the security thread.
- FIG. 1 shows a security document 1 according to the invention, for example a bill, which comprises a substrate 2 and a security thread 3 according to the invention. The latter extends between two opposite edges 4 and 5 of document 1.
- the security thread 3 may be incorporated at least partially in mass in the substrate 2 of the security document, and only part of the thread 3 appears visible, for example through one or more windows 6 formed in the substrate.
- An example of window incorporation is described in EP 59056.
- the substrate 2 of the security document incorporating the security thread 3 consists of natural fibrous materials, for example cellulose and / or cotton, and / or synthetic fibers.
- the substrate 2 can also be made from plastic materials, such as a Polyart TM film sold by the company ARJOBEX Ltd.
- FIG. 2 shows separately the security thread 3.
- This comprises a support 10, preferably made of a transparent thermoplastic material, for example polyester or PET.
- the support 10 is of flattened cross section, in particular rectangular as illustrated.
- the thickness of the support 10 is for example between 8 and 30 microns, preferably between 12 and 23 microns.
- impressions 11 are made on a face 12 of the support 10, in two zones 13 and 14 spaced apart from each other and between which there is an intermediate zone 15.
- impressions 11 are covered on the side of the opposite face 19 of the support 10 by respective layers 16 and 17 of platelet reflective and magnetic pigments, each deposited in the form of a strip extending along the wire.
- the pigments of the layers 16 and 17 are oriented differently, as illustrated in FIGS. 3 and 4.
- the underlying impression 11 is visible and for a different viewing direction D, the pigment is reflective and the underlying printing 1 is not visible.
- Optically variable zones 31 and 32 separated by the intermediate zone 15 are thus obtained and, for example, the appearance change illustrated in FIGS. 5 and 6 is observed when the observation direction is modified.
- the prints 11 can be directly made on the support, as is the case in Figure 2, or alternatively on an independent transparent layer, for example PET, laminated by means of an adhesive on the rest of the security thread .
- the wire may comprise a multilayer support.
- the width L of the wire 3 is preferably between 2 and 10 mm, and that of the intermediate zone 15 is between 0.5 and 1.5 mm.
- a third security element 20 is deposited between the impressions 11, under the intermediate zone 15, on the face 12 of the support 10, as illustrated in FIG. 2.
- This third security element 20 can be visible on the side of the face 19, thanks to the non-opaque nature of the support 10.
- the third security element 20 may consist of:
- a magnetic tape which may contain a magnetic code, text or other motifs formed by demetallization
- thermochromic pigment a thermochromic pigment
- the wire 3 can be made in such a way that the change in appearance of the zones 31 and 32 takes place when the observation direction rotates about an axis parallel to or coincident with the median longitudinal line X of the wire 3, or alternatively around an axis perpendicular to said longitudinal line.
- the angular difference between the two directions of observation is for example at least 5 °, better 15 °.
- the angular difference is for example between 5 and 50 °, better between 15 and 20 °.
- the pigments are oriented according to the axis around which the observation direction must turn to observe the desired change of appearance.
- the pigments are oriented, the X axis being vertical, respectively to the left and to the right, to obtain a change of appearance when turning from left to right or vice versa.
- FIG. 7 shows an alternative embodiment in which the layers 16 and 17 also cover the security element 20 but in which the impressions 11 are spaced apart from the third security element 20, defining intervals 21, for example in the form of characters or bands.
- the element 20 is wider than the width / of the intermediate zone 15 formed between the layers 16 and 17. In a variant, the situation is different, and the element 20 is for example less large.
- the prints 11 are made on the face 19.
- FIGS. 14 and 15 there is shown a security thread as described with reference to FIG. 2, the optically variable elements 16 and 17 of which are covered with a variable opacity element 60, for example a metallization / demetallization or printing.
- the first 16 and second 17 elements have first A and second B regions, not superimposed on the support 10.
- variable opacity element 60 defines a first C and a second E areas of least opacity which are superimposed respectively on the first 16 and second 17 optically variable elements.
- the variable opacity element 60 defines a third zone of least opacity F which is superimposed on the third security element 20.
- a surrounding area of greater opacity G extends around the first, second and third zones.
- the third zone of less opacity F is obtained by means of an aperture 61, for example longitudinal, made within variable opacity element 60.
- This aperture 61 can separate the variable opacity element 60 in two distinct parts.
- the third security element 20 is visible through the third zone of less opacity F, a region 62 of the variable opacity element 60 having a lower opacity than its vicinity.
- the region 62 is transparent.
- a second support 101 for example PET, preferably transparent, is used to facilitate the deposition of the variable opacity element and protect the optically variable elements 16 and 17.
- This support can facilitate the manufacture of the variable opacity element by a metallization / demetallization process.
- the third security element 20 is disposed in the gap 15 on the face of the support 10 which carries the two optically variable elements 16 and 17.
- variable opacity element 60 and the first 16 and second 17 optically variable elements are located on respective opposite faces of the support 10.
- Impressions 11 may optionally be arranged on the face of the support 10 opposite to that where the optically variable elements 16 and 17 are arranged, and may be partially or completely visible when observed through the first and second areas of least opacity C and E, as illustrated in Figures 14 to 16.
- the zone of greater opacity G is not totally opaque and transmits a portion of the visible light.
- the superposition of the zone of greater opacity G with the first 16 and second 17 optically variable elements respectively defines fourth M and fifth N optically variable zones.
- a security wire comprising a variable opacity element 60 as shown in FIGS. 14 to 17, by modifying the angle of observation, the appearance change illustrated in FIGS. this example, seen from the front, a first set consisting of the fourth optically variable zone M and the first zone C of less opacity and a second set consisting of the fifth optically variable zone N and the second zone D of less opacity are located on either side of the third zone of least opacity F, through which the third security element 20 is visible.
- the fourth optically variable area M appears lighter than the fifth area N, and the first optically variable element 16, observed through the area of least opacity C, appears transparent. It may then be possible to observe underlying impressions as appropriate.
- the surrounding area of greater opacity G is completely opaque, only the first C and second E areas of less opacity appear visually different in the direction of observation.
- the fourth M and fifth N optically variable areas have substantially the same appearance, regardless of the angle of observation.
- the surrounding area of greater opacity G has a visual characteristic, for example a color, uniform and not variable with the viewing angle.
- a reflective aspect of the platelet particles is only visible through one of the first C and second E areas of less opacity.
- the security thread 3 can be observed from the front in transmitted light.
- the security wire is then placed between a light source and the observer.
- the light emitted by the source passes through the safety wire.
- the patterns defined by the areas of least opacity C and E are partially opaque and have a substantially identical visual appearance.
- the angles of observation of the platelet particles with respect to the normal are substantially the same, in absolute value.
- the third and fourth zones optically variable M and N may have a substantially identical appearance. They may appear darker than the patterns defined by the areas of least opacity C and E, because the illuminant must cross the G area of greater opacity.
- FIGS. 20, 21 and 22 show an embodiment where the variable opacity element 60 comprises pixelated images 70 and 71, for example disclosed in EP-A-1674286, for example representing the face of a woman and superimposing respectively on the first 16 and second 17 optically variable elements. These images define the area of greater opacity G.
- the element 60 of variable opacity comprises first C and second E zones of less opacity corresponding for example to openings 72 and 73, for example located at the level of the eyes of the images 70 and 71.
- Each of these images advantageously comprises a succession elements, for example points or lines, for example of different colors, arranged in such a way that a visual effect of depth is produced, when observed in transmitted light, the elements of the pixellated image appear more or less distant to the observer.
- This visual effect is for example related to the size (for example the diameter of the points or the thickness of the lines), the position or the density of the elements of the pixelated image.
- the first optically variable element 16 When the security thread 3 is observed in reflection in the direction O, the first optically variable element 16 appears transparent through the area of least opacity C, as shown in FIG. 20. The superposition of the surrounding area of greater opacity G and since the first optically variable element 16 is not totally opaque, the pixelated image 70 may appear visually in depth.
- the second optically variable element 17 In this direction O, the second optically variable element 17 is reflective when observed in reflection. The eyes of image 70 appear reflective. No light can be transmitted through the security wire in the area superimposed on the second element 17. In this area, the image 71 has the appearance of a flat image, and does not appear visually in depth. It also appears darker than the area of greater opacity G superimposed on the first optically variable element 17.
- the security thread 3 is viewed from the front in transmitted light, in a direction perpendicular to the security thread.
- FIG. 23 illustrates the possibility for the surrounding zone G of being discontinuous on a microscopic scale, comprising a frame 77 which extends for example from one edge 78 to the other 79 of the element variable opacity and transversely separates the variable opacity element into distinct parts.
- This frame may appear to be continuous when observed in reflection, the less opaque lines 77a being for example more numerous, narrow and close than illustrated.
- This frame can be pixelated and visually appear in depth when observed in transmitted light, as in the example of Figures 20 to 22.
- variable opacity element 60 may be a metallization / demetallization, for example obtained as described in patent EP-A-279880.
- This variable opacity element can also in a variant be realized with an ink having a low opacity, or even transparent, comprising a photosensitive pigment, for example the radiation of a laser. By selectively treating the ink with the laser radiation, an area of greater opacity is obtained. The photosensitive pigment exposed to the laser radiation changes the optical properties of the treated area to make it more opaque.
- the element 20 is partially deposited on the layers 16 and 17, in addition to covering the intermediate zone 15.
- impressions 11 may be replaced by metallizations, demetallizations or other observable elements.
- optically variable elements can be made otherwise than with orientable magnetic pigments.
- optically variable elements are made using lenticular arrays, as illustrated in FIGS. 8 to 11.
- the lenses 30 of the lenticular network are for example cylindrical or hemispherical concave, convex or Fresnel, and are for example arranged in a hexagonal, hexagonal compact or rectangular arrangement.
- Compact hexagonal means an arrangement according to which the lenses are included in a hexagonal shape with no space between them.
- the lenticular network consists of coplanar hemispherical lenses arranged in staggered rows, hexagonal lenses arranged in "honeycomb" or juxtaposed cylindrical lenses.
- the lenticular network may be made by embossing, in particular by thermo-embossing or by embossing followed by ultraviolet crosslinking, or by molding.
- the lenticular network may be printed and comprise lenses 30 juxtaposed or not, for example formed by UV printing, for example by screen printing, gravure printing, typography, or by inkjet printing.
- a first pattern or color may be observable through the lenticular array at a first viewing angle in the first area 31, a second pattern or color observable through the lenticular array at a second angle of view, different from the first angle, in the second zone 32.
- FIG. 10 corresponds to the appearance for an observation in the direction O of FIG. 8 and FIG. 9 to the appearance in the observation direction D of FIG. 9.
- the first and second pattern or color may be at least partially identical.
- Standard pattern means a single pattern or image that may have more than one occurrence whose appearance, ie, shape, aspect and / or color, is substantially the same or at least partially identical.
- the pattern is in the form of an alphanumeric symbol or is representative of a symbol, a logo, a character, a landscape, an object ...
- disjointed pattern elements 11 are each arranged facing a corresponding lens 30.
- each pattern element 11 is disposed on a first side with respect to the center or axis of the corresponding lens 30, and each pattern element in the second zone 32 is disposed on a second side , opposite to the first side, relative to the center or the axis of the corresponding lens.
- each pattern element 11 is arranged in the same manner with respect to the corresponding lens.
- the pattern elements 11 can be distributed in the same way as the corresponding lenses 30, that is to say with the same spacing pitch and without angular offset so as to avoid any Moiré effect.
- a single pattern element 11 is arranged facing a corresponding lens 30.
- Each lens 30 is therefore associated with a single pattern element 11 to make the pattern element appear and disappear.
- the pattern elements 11 can be obtained by perforations, deposits and / or voids of material.
- the elements of pattern 1 1 are obtained by a metallization or demetallization of materials selected from: metals, metal compounds, alloys, varnishes or metallic inks, as described in document EP 279880.
- the pattern elements 11 can be obtained by selective printing, in positive or negative, of an ink containing pigments chosen from: carbon black pigments, magnetic pigments, colored pigments, pigments visible under radiation UV or IR or a mixture of these.
- the distance between the lenticular array and each pattern element 11 is less than or equal to the focal length of the lenses 30 of the lenticular array.
- the distance between the apex of each lens 30 and the pattern element 11 is preferably greater than the radius of curvature at the center of the lens.
- the height of a lens can thus be determined from the radius of curvature and the diameter of the lens.
- a satisfactory compromise between thickness and resolution is preferably obtained for a lenticular array whose lenses 30 have a diameter of between 15 and 50 microns for a radius of curvature of between 10 and 40 microns.
- the pattern elements 11 are preferably located at a distance of between 20 and 30 microns from the top of the lenses.
- the pattern elements are preferably located at a distance of between 25 and 45 microns.
- each pattern element 11 is located on one side of the support 10 facing a corresponding lens 30, so as to have a width at most equal to the radius of the corresponding lens.
- This arrangement makes it possible to make the pattern element 11 appear and disappear in an adequate manner, that is to say that the time of appearance is substantially equivalent to the disappearing time when the observer varies the angle of observation. security thread evenly over time.
- the security thread has a reduced thickness while maintaining a particularly effective appearance and disappearance effect for integration into security documents, even for relatively fine documents such as bank notes. Since banknotes generally have a thickness of about 100 microns, the security threads they carry should therefore not exceed this thickness approximately.
- a security thread according to the invention may have a lenticular array comprising a set of identical truncated hemispherical lenses with a diameter of about 50 microns for a radius of curvature of 30 microns and a height of about 14 microns.
- the distance d between the vertex of the lenses 30 of the lenticular array and the corresponding pattern elements 11 may be between 25 and 45 micron, for example equal to the radius of curvature at the center of the lenses of the lens.
- the thickness of the security thread thus obtained is about 30 microns, which is particularly suitable for integration into a thin security document such as a banknote.
- the lens diameter of 30 microns induces a totally satisfactory pattern resolution for authentication and identification.
- the inscription of a pattern element covering a surface corresponding to about half of the surface of a lens implies a pattern element width of about 15 microns, which makes it possible to overcome complicated and expensive registration such as those made by means of a laser for very high resolutions, for example for printing a complete pattern behind each lens as in the case of a magnifying moiré effect.
- Each pattern element 11 may be formed on the security wire by metallization and / or demetallization, for example aluminum.
- the metallization / demetallization processes have a fineness and a definition such that they are difficult to reproduce by printing.
- the elements of the pattern 1 1 can still be registered by a printing process of the offset type, intaglio, laser, inkjet, microlithography, gravure or screen printing, which can be registered in positive or negative.
- the pattern elements 11 may be formed by dots having optical diffraction properties of the light which are arranged on a mirror reflecting surface so as to have a high contrast with respect to the surface.
- the points constituting the pattern elements may be achromatic, i.e. they do not break down white light, and be arranged on a non-achromatic surface.
- the pattern elements 11 can be printed with colored or non-colored inks, visible to the naked eye or not, for example inks visible only under ultraviolet or infrared light, opaque, fluorescent, phosphorescent, thermochromic, photochromic, translucent and / or transparent ...
- the light source used to illuminate the security thread is for example ambient light from the sun or artificial light.
- the appropriate lighting device will be used.
- the lenticular network consists of a set of hemispherical lenses which are arranged coplanar on the face 19 of the support 10 and arranged in rows or in offset columns.
- the lenticular array is formed of a plurality of lenses 30 disposed adjacent each other to form a contiguous lens column.
- This lens column 30 is itself adjacent to another lens column, the lens columns themselves being arranged offset with respect to each other, for example with a shift of about one hemispherical lens radius according to the longitudinal direction of the lens column.
- This staggered arrangement of lenses allows optimal compaction of the lenses on the face 19 of the support 10, which has the effect of increasing the overall pattern resolution for more effective authentication of the security element.
- the pattern elements 11 are printed or otherwise made on the face 12 of the support 10.
- a third security element 20 extends on the face 12, between the zones 31 and 32 provided with the lenses 30, when the wire is observed from the front.
- the lenses are covered by the variable opacity element 60, for example deposited by printing.
- the ink is deposited where the area of greater opacity G must be formed.
- a first pattern or color may be observable through the lenticular array at a first viewing angle in the first C area, a second pattern or color observable through the lenticular array at a second viewing angle, different from the first angle, in the second zone E.
- zone C For example, for a viewing direction, a black color is observed only on zone C, as shown in FIG. 26, and for another angle of observation, the aspects of zones C and E are reversed, as shown in FIG. Figure 27.
- the third security element 20 is visible between the two optically variable elements.
- a security document 1 according to the invention comprises at least one security thread 3 as described above, which constitutes a so-called "first level" security element.
- FIGS. 28 and 29 show a security document 1, for example a banknote, in which a security thread 3 is inserted in the window, as illustrated for example in FIG. 17.
- FIG. 30 represents a section according to XXVIII. -XXVIII defined in Figure 28. At least a portion of the security thread 3 is visible through a window 75, at which it is flush with the surface of the document as shown in Figure 30.
- the security thread is positioned so that a face 73 of the substrate 2 supports the face opposite to the variable opacity element 60. In this way, the first and second optically variable elements are only observable, in reflected light, from the face 74 of the document on which variable opacity element 60 is visible.
- the surrounding area of greater opacity G preferably has a uniform color substantially identical to the color of the adjacent portion of the face 74 of the document on which security thread appears.
- the borderline between security thread 3 and the Security document 1 is thus not clearly visible to an observer, and only areas of less opacity change in appearance when the direction of observation changes.
- the security thread 3 can also be placed on the surface of the security document 1.
- the security thread 3 is positioned so that the variable opacity element 60 is turned towards the observer.
- the color of the substrate 2 or of a pattern printed on the face 74 and located under the zone of least opacity C or E is visible through the variable opacity element 60.
- the reflecting aspect of the platelet particles in the zones C or E is observed in reflection.
- the wire or the document may, however, comprise other "first level” security elements and / or at least one "second level” and / or "third level” security element.
- the document 1 may in particular comprise the following security elements, alone or in combination:
- UV absorber especially in the form coated or mixed with at least one constituent layer of the document
- a light collector specific material for example of the "waveguide” such a luminescent light collector material such as polycarbonate polymer films marketed by Bayer under the name LISA ®,
- a flat and relatively small security element such as a board, visible or non-visible, in particular luminescent, with or without an electronic device,
- security fibers in particular metallic, magnetic (with soft magnetism and / or hard), or absorbing, or excitable with ultraviolet, the visible or the infrared, and in particular the near infrared (NIR),
- an automatically readable security having specific and measurable luminescence characteristics (eg fluorescence, phosphorescence), light absorption (eg ultraviolet, visible or infrared), Raman activity, magnetism, microwave interaction , X-ray interaction or electrical conductivity.
- luminescence characteristics eg fluorescence, phosphorescence
- light absorption eg ultraviolet, visible or infrared
- Raman activity e.g ultraviolet, visible or infrared
- magnetism e.g., magnetism, magnetism, microwave interaction , X-ray interaction or electrical conductivity.
- One or more security elements as defined above may be present in the document and / or in one or more constituent layers of the document or in one or more security elements incorporated in the document and / or in one or more layers constituting the document. , such as a wire, a fiber or a board.
- At least one of the constituent layers of the document may also include a first level security element such as a watermark or a pseudo-watermark superimposed at least partially on a translucent region of the document.
- a security thread 3 it is possible to start from a film 40.
- the first optically variable element is produced on the film in the form of spaced parallel strips 51 and the second optically variable element is produced in the form of spaced parallel strips 52, interwoven with the strips 51 formed by the first member, with a spacing between the strips of the first member and the strips of the second member.
- the film is cut at half the width of the strips of the first member and the strips of the second member to form a plurality of security threads 3.
- the strips 51 and 52 are for example between 3 and 5 mm wide.
- Two strips 51 and 52 are for example spaced apart by a distance of 0.5 mm.
- the deposition of the pigment layers 16, 17 or the formation of the lenses 30 can be done by passing the film to a printing station 48, as illustrated in FIG. 13.
- the film 40 is for example unwound a first time before going to the printing station 48, to form the strips 51 corresponding to the pigment layers 16. Then, the film 40 is returned, for example by rotating around a perpendicular to the surface of the film, and reintroduced into the machine to form the strips 52 corresponding to the pigment layers 17. Due to the overturning, the pigments of the layers 16 and 17 are oriented differently on the wire. The film is then cut to form the wires that are wound on multiple coils.
- the security document including the safety wire may still be a document such as a passport, an identity card, a driving license, an interactive playing or collectible card, a means of payment other than a bank note including a credit card, voucher, voucher, transport card, loyalty card, service card or membership card.
- the yarn can be produced by implementing the teachings of patent FR 2,877,609 B1 or application WO 2004/106078 A1.
- the thread may include:
- the third security element may constitute one of the fluorescent zones and the other fluorescent zone may be formed in the intermediate zone.
- the first and second fluorescent zones are at least partially superimposed so as to constitute the third security element and so that, in the predefined lighting condition, the superposition of the two fluorescent zones appears in transmitted light of a third color, different from the first and second colors.
- Authentication and / or identification of an article or document incorporating such a thread may comprise two observation steps, in the predefined lighting condition, in reflection, first and second colors, at least one step of observation in transmitted light to observe the third color.
- the first fluorescent zone appears yellow and the second fluorescent zone blue, and, observed in transmitted light, the wire has a violet color when it is observed from a first face and appears substantially white when observed from a second side, opposite to the first.
- impressions respectively disposed on each side of the intermediate zone under each of the optically variable zones may also be fluorescent and represent patterns.
- the two additional steps of observation of the security thread at different angles make fluorescent colors appear, in reflection, preferably different, on each side of the intermediate zone. These colors can also be different from the visible color in reflection in the intermediate zone.
- the third security element may comprise a security pattern consisting of a first pattern formed from substances having an interferential effect and a second pattern formed from substances that react to certain stimulations, such as light radiation or heat stimulation, magnetic, electromagnetic, electric or microwave type, giving a light response visible by a human eye or a specific signal detectable using a suitable device.
- certain stimulations such as light radiation or heat stimulation, magnetic, electromagnetic, electric or microwave type, giving a light response visible by a human eye or a specific signal detectable using a suitable device.
- a simple and particularly attractive technical solution is to apply on a paper or plastic substrate a layer consisting of a proportionate mixture of the two substances: the two patterns will be, in this way, completely identical and will represent the same final security pattern.
- the first pattern appears in white light and the second pattern appears under stimulation, the two patterns being identical, the observer has the impression of visualizing the transformation of a pattern which is particularly effective in terms of authentication.
- This layer may, advantageously, be applied by printing, in particular by gravure printing or by screen printing, and will consist of a proportionate mixture of the substances reacting to certain stimulations, such as light radiation or heat, magnetic, electromagnetic or electrical stimulation, in particular. giving a luminous response visible by a human eye or detectable by a suitable device.
- certain stimulations such as light radiation or heat, magnetic, electromagnetic or electrical stimulation, in particular. giving a luminous response visible by a human eye or detectable by a suitable device.
- Another technical solution is to apply successively to the security document a layer comprising substances having an interference effect, thereby forming a first security pattern, and a layer comprising substances that react to certain stimulations, such as light radiation or stimulation. heat, magnetic, electromagnetic or electrical, giving a light response visible by a human eye or detectable by a suitable device.
- certain stimulations such as light radiation or stimulation. heat, magnetic, electromagnetic or electrical, giving a light response visible by a human eye or detectable by a suitable device.
- the final pattern Under normal observation, that is to say under a white light, the final pattern is unreadable, the letters or signs being half-truncated, for example. On the other hand, under the action of an external stimulation, such as a rise in temperature for example, the final pattern appears in its entirety. It is also conceivable to provide a final pattern of alphanumeric type, in which some signs or letters are formed by the first pattern and some other signs or letters are formed by the second pattern.
- the final pattern presents, in this way, a uniform interference effect according to the first pattern, the second pattern then being invisible.
- an external stimulation such as a light emitting ultraviolet radiation for example, the second alpha-numeric type pattern is revealed the time of the stimulation.
- the security thread can still include:
- At least a second phosphorescent composition the first and second compositions being simultaneously excitable by a predefined illuminant from the same face of the structure.
- Both compositions can be the third security element.
- the first fluorescent composition may be superimposed, at least partially, on the second phosphorescent composition.
- One of the first and second compositions may form a solid surface which is superimposed on the other of the first and second compositions, which forms at least one pattern.
- One of the first and second compositions may form at least one pattern which, upon extinction of the illumination by the predefined illuminant, appears or disappears, or which changes appearance by passing from a positive or negative pattern or from one color to another.
- the first fluorescent composition can emit, under the illumination by the predefined illuminant, a visible light of a first color
- the second phosphorescent composition emitting, under illumination by the predefined illuminant, a visible light of a second color, different the first, and at least one superposition area of the first and second fluorescent and phosphorescent compositions emitting, under predefined illuminant illumination, visible light of a third color, resulting from the additive synthesis of the first and second colors.
Abstract
Description
Claims
Priority Applications (8)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ES12741093.4T ES2605835T3 (es) | 2011-06-23 | 2012-06-22 | Hilo de seguridad |
BR112013032819A BR112013032819A2 (pt) | 2011-06-23 | 2012-06-22 | faixa de segurança a ser incorporada a um documento de segurança, método para fabricar uma faixa e documento de segurança |
KR1020137033745A KR102031672B1 (ko) | 2011-06-23 | 2012-06-22 | 은선 |
EP12741093.4A EP2723945B1 (fr) | 2011-06-23 | 2012-06-22 | Fil de sécurité |
CN201280040891.2A CN103748284B (zh) | 2011-06-23 | 2012-06-22 | 安全丝线 |
RU2014101957A RU2607811C2 (ru) | 2011-06-23 | 2012-06-22 | Защитная нить |
UAA201400679A UA111365C2 (uk) | 2011-06-23 | 2012-06-22 | Захисна нитка |
US14/134,601 US9701151B2 (en) | 2011-06-23 | 2013-12-19 | Security thread |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR1155529A FR2976954B1 (fr) | 2011-06-23 | 2011-06-23 | Fil de securite |
FRFR1155529 | 2011-06-23 |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
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US14/134,601 Continuation US9701151B2 (en) | 2011-06-23 | 2013-12-19 | Security thread |
Publications (1)
Publication Number | Publication Date |
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WO2012176169A1 true WO2012176169A1 (fr) | 2012-12-27 |
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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PCT/IB2012/053175 WO2012176169A1 (fr) | 2011-06-23 | 2012-06-22 | Fil de sécurité |
Country Status (11)
Country | Link |
---|---|
US (1) | US9701151B2 (fr) |
EP (1) | EP2723945B1 (fr) |
KR (1) | KR102031672B1 (fr) |
CN (1) | CN103748284B (fr) |
BR (1) | BR112013032819A2 (fr) |
ES (1) | ES2605835T3 (fr) |
FR (1) | FR2976954B1 (fr) |
PL (1) | PL2723945T3 (fr) |
RU (1) | RU2607811C2 (fr) |
UA (1) | UA111365C2 (fr) |
WO (1) | WO2012176169A1 (fr) |
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WO2014203199A1 (fr) | 2013-06-20 | 2014-12-24 | Arjowiggins Security | Structure multicouche de securite et procede de fabrication associe |
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Also Published As
Publication number | Publication date |
---|---|
BR112013032819A2 (pt) | 2017-01-31 |
UA111365C2 (uk) | 2016-04-25 |
US20140103632A1 (en) | 2014-04-17 |
EP2723945B1 (fr) | 2016-09-14 |
CN103748284A (zh) | 2014-04-23 |
KR102031672B1 (ko) | 2019-10-14 |
RU2607811C2 (ru) | 2017-01-20 |
PL2723945T3 (pl) | 2017-02-28 |
ES2605835T3 (es) | 2017-03-16 |
KR20140040166A (ko) | 2014-04-02 |
EP2723945A1 (fr) | 2014-04-30 |
US9701151B2 (en) | 2017-07-11 |
RU2014101957A (ru) | 2015-07-27 |
FR2976954B1 (fr) | 2013-07-12 |
FR2976954A1 (fr) | 2012-12-28 |
CN103748284B (zh) | 2016-04-06 |
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