EP3247570B1 - Support de données avec fil de sécurité à fenêtre - Google Patents

Support de données avec fil de sécurité à fenêtre Download PDF

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Publication number
EP3247570B1
EP3247570B1 EP16700384.7A EP16700384A EP3247570B1 EP 3247570 B1 EP3247570 B1 EP 3247570B1 EP 16700384 A EP16700384 A EP 16700384A EP 3247570 B1 EP3247570 B1 EP 3247570B1
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EP
European Patent Office
Prior art keywords
micro
thread
windows
window
security
Prior art date
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EP16700384.7A
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German (de)
English (en)
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EP3247570A1 (fr
Inventor
Andreas Aigner
Thomas Gerhardt
André Gregarek
Rudolf Seidler
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.)
Giesecke and Devrient Currency Technology GmbH
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Giesecke and Devrient Currency Technology GmbH
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Priority to PL16700384T priority Critical patent/PL3247570T3/pl
Publication of EP3247570A1 publication Critical patent/EP3247570A1/fr
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Classifications

    • 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
    • B42D25/333—Watermarks
    • 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
    • B42D25/351—Translucent or partly translucent parts, e.g. windows
    • 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 data carrier, in particular a value or security document, comprising a substrate comprising at least one paper layer with an embedded window security thread.
  • the invention also relates to a dewatering screen for the manufacture of security paper with a window security thread.
  • Data carriers such as banknotes, stocks, bonds, certificates, vouchers, checks, high-quality admission tickets, but also other forgery-prone papers, such as passports or other identity documents, are often provided with security elements for security, which allow a verification of the authenticity of the value document and at the same time serve as protection against unauthorized reproduction.
  • the security elements can be designed in the form of a security thread which is wholly or partially embedded in the data carrier.
  • Window security threads are security threads that are neither applied to a surface of a data carrier substrate nor fully embedded in the substrate. Rather, they are partially embedded in the substrate such that they are visible on one or both opposite surfaces of the substrate only in certain window areas.
  • the present invention seeks to provide a data carrier of the type mentioned above with an attractive appearance and high security against counterfeiting.
  • the invention is also intended to provide a suitable apparatus and method for making such data carriers.
  • the window regions comprise at least one group of several microfine stars juxtaposed in the transverse direction of the thread, which are produced by paper-making and have an edge produced during papermaking with characteristic irregularities.
  • the statement that several micro-windows of a group in the transverse direction of the thread are next to one another more exactly means that there is a straight line in the transverse direction of the thread which cuts all the microphone windows of the group.
  • the straight line is usually not clearly defined, it is only important that such a straight line exists.
  • the definition clarifies the vivid understanding of adjacent microphone windows, as it ensures that the micro-windows have a certain overlap in the "side-by-side" direction indicated by the straight line.
  • window security thread is used in the present description not only for narrow security threads with a width of 4 mm or less, but also for wide security threads with a width of 4 mm to about 30 mm, which are sometimes referred to in the patent literature as security tapes ,
  • security tapes The embedding of such wide security threads in papermaking is for example in the document EP 0 625 431 A1 described.
  • all window areas of a data carrier can be designed in the form of micro-windows or the data carrier can also have conventional window areas in addition to micro-windows.
  • the window areas may not only comprise a named group, but rather several groups of adjacent micro windows are advantageously provided. It is even possible that all microphone windows are part of one or more such groups.
  • the window regions comprise at least one group with three or more, preferably five or more, micro-fiber stars adjacent to one another in the transverse direction of the thread.
  • the reduced offset is advantageously as different as possible for different microphone windows in order to optimally utilize the available offset clearance under the boundary condition of a juxtaposed position of the microphone windows.
  • the micro windows advantageously have a minimum offset of at least ⁇ max / (N-1) against each other, so that is
  • the width of the micro-windows of the at least one group is advantageously less than 50%, preferably less than 40%, particularly preferably less than 30% of the thread width, in the transverse direction of the thread.
  • the length of the micro-windows parallel to the yarn longitudinal direction (sometimes also referred to as the height of the micro-windows) is advantageously between 0.2 mm and 4 mm, preferably between 0.3 mm and 3 mm and particularly preferably between 0.5 mm and 1 mm.
  • the width of the micro-windows in the transverse direction of the thread is preferably between 0.2 mm and 4 mm, preferably between 0.3 mm and 3 mm, particularly preferably between 0.5 mm and 1 mm.
  • the at least one group preferably comprises micro-windows whose outlines represent patterns, characters or an encoding, in particular a letter or number sequence, such as a currency symbol or a value number.
  • the micro-windows can also be designed in the form of a facial or portrait representation.
  • the window areas comprise a plurality of microfine stars whose spatial arrangement forms a motif.
  • the individual micro-windows are not necessarily formed even in motif form, but said motif is formed by the arrangement of the totality of micro-windows.
  • Such a motif may consist in particular of letters, characters or figures which are composed of the micro-star stars as small building blocks.
  • the outlines of the micro-windows can be the same or different. It is also possible that both the outlines of the microphone windows and their spatial arrangement each represent a motif or information. These motifs or information may be related or mutually exclusive to supplement a total information.
  • the micro windows can also form screened, point cloud or strip windows.
  • the micro windows as thin spots in the paper layer of the substrate are part of a laterally projecting beyond the window security thread watermark.
  • the microphone windows can be integrated into a comprehensive design of the data carrier, so that the attention value and the imitation security further increases.
  • the watermark may supplement, continue or repeat in the same or modified form a motif formed by the outline or the spatial arrangement of the microfine windows.
  • a motif formed by the outline or the arrangement of the micro-windows is continued by any other security feature beyond the window security thread.
  • the other security feature may consist, for example, in a print layer, a color layer, a laser cut area, a watermark, a film or a hologram.
  • the other security feature can complement a motif formed by the outline or the arrangement of the micro-windows, continue or repeat in the same or modified form.
  • the window security thread is advantageously provided with diffraction structures, liquid crystal layers, thin-film structures, recesses in opaque, in particular metallic layers, fluorescent substances, magnetic, conductive and / or metallic layers.
  • the invention also includes a dewatering screen for the manufacture of security paper with a windowed security thread that on certain Window areas on a surface of the security paper emerges and is embedded in intermediate areas inside the security paper.
  • the dewatering screen comprises a carrier screen which is provided in an area with an injection-molded insert, which has a relief with upwardly extending from a base body and the surface of the support screen protruding motif elements, which are formed in the form of window portions of the window security thread.
  • the motif elements comprise at least one group of a plurality of micromotif elements juxtaposed transversely to the running direction of the thread to be embedded in order to produce microfine stars.
  • the invention further includes a dewatering screen of the type mentioned above, wherein the dewatering screen comprises a carrier screen which has a screen embossment in a partial area which has a relief with motif elements projecting beyond the surface of the carrier screen, which are formed in the form of the window areas of the window security thread.
  • the motif elements comprise at least one group of a plurality of micromotif elements juxtaposed transversely to the running direction of the thread to be embedded in order to produce microfine stars.
  • the micromotif elements have a width transversely to the running direction of the thread to be embedded which is less than 50% of the thread width and lies between 0.2 mm and 4 mm.
  • the motif elements preferably comprise micromotif elements whose outlines represent patterns, characters or a coding, in particular a letter or number sequence.
  • the motif elements comprise a plurality of Micromotif elements whose spatial arrangement forms a motif, in particular letters, characters or figures.
  • the injection molding insert or the screen embossing has, in addition to the motif elements for producing the window regions of the window security thread, a watermark relief in the form of a watermark to be produced in the security paper.
  • the watermark relief can supplement, continue or repeat in the same or modified form a motif formed by the outline or the arrangement of the micromotif elements.
  • a hydrophobic plastic such as polyoxymethylene.
  • the plastic may be added with wear-reducing additives.
  • the injection-molded insert is preferably arranged in a cut-out region of the carrier screen and connected thereto only in a preferably serrated edge region.
  • a recess can be produced which is slightly smaller, for example 1/10 mm smaller than the desired shape of the injection molding insert.
  • the edge region can be designed in particular in the form of a pattern, preferably in a serrated form. In this cut-out portion of the injection molding insert can be inserted or preferably injected.
  • the carrier screen advantageously contains a screen fabric with at least one system of interwoven, longitudinally extending warp threads and weft threads extending transversely thereto, wherein the screen fabric advantageously contains either a metal fabric, in particular a bronze fabric, a metal-plastic mixed fabric, in particular a bronze-plastic mixed fabric, or a pure plastic fabric.
  • the injection molding insert preferably has a plurality of perforations, which ensure drainage during papermaking.
  • the dimensions of these drainage perforations are chosen so small that they do not adhere to fibers during papermaking.
  • Typical perforation diameters are between 100 ⁇ m and a few 100 ⁇ m, for example about 500 ⁇ m.
  • the perforations taper towards the uppermost design surface of the injection molding insert or the perforations are formed waisted.
  • an injection molding tool which contains an injection molding cavity into which plastic can be injected to produce the injection molding insert and which is provided with a multi-stage tool relief in the form of the inverted injection molding relief.
  • the injection molding tool including the injection molding cavity and the high-resolution multi-stage tool relief can be formed by milling or by an additive manufacturing process as a layer sequence of a plurality of firmly interconnected material layers.
  • an embossing stick can be used which is provided with a high-resolution multi-level relief in the form of the inverted screen embossing.
  • the embossing stick including the high-resolution multi-level relief can be made by milling or be formed by an additive manufacturing process as a layer sequence of a plurality of firmly interconnected material layers.
  • selective laser sintering selective laser melting, electron beam melting, 3D printing with powder, melt stratification, laser deposition welding, multi-jet modeling, a polyjet process, stereolithography, laminated object modeling, film transfer imaging or digital light processing are considered as additive manufacturing processes.
  • FIG. 1 shows a schematic representation of a banknote 10 with a paper substrate 12, which is provided with a window security thread 14 according to the invention.
  • the window security thread 14 has a thread length direction L extending in the longitudinal direction and a thread transverse direction Q perpendicular thereto, and protrudes in window areas 16 on the surface of the banknote 10, while FIG it is embedded in intermediate web areas 18 in the interior of the banknote 10.
  • window portions 16 of the window security thread 14 are shown schematically as rectangles.
  • the window portions 16 according to the invention include papermaking generated microfine window 20, which are formed in the embodiment in the form of small stars with irregular deckle edge 22.
  • the micro-windows 20 reveal the view of the window security thread 14 embedded in the paper, so that the security features arranged on the window security thread 14, for example a diffraction structure or a color-shifting layer, become visible there.
  • the window security thread 14 is covered by the paper layer 12 and therefore the security features arranged thereon are not visible.
  • microfibers 20 were produced in papermaking as described below, they have an edge 22 with characteristic irregularities, which is often referred to as deckle edge in this specification.
  • the irregular edge structure arises from an irregular accumulation of fibers in the edge region and by protruding into the hole of individual fibers.
  • the window areas comprise a plurality of groups of microfibers, each of which has a plurality of adjacent side-by-side yarns Include microphone windows 20.
  • the juxtaposition of micro-starlets in the transverse direction means more precisely that there is a straight line g in the yarn transverse direction Q which intersects all the group 30 micro-windows.
  • groups is such a straight line g drawn.
  • the micro-windows of a group 30 can all be at the same level, but are preferably as in FIG Fig. 2 , the micro-window 20 of a group 30 against each other in the yarn longitudinal direction L and thus are indeed next to each other, but not at the same height.
  • the offset of the micro window shows Fig. 3 two microphone windows 20-i, 20-j of a group 30 of transverse in the transverse direction Q adjacent micro-star and a straight line g, which intersects all the group 30 micro-windows.
  • the height hi of a micro window 20-i is the dimension of the micro window in the longitudinal direction L.
  • a center line 24-i can be specified, which halves the extension of the micro window in the longitudinal direction L and lies parallel to the line g.
  • the offset di of a micro-window 20-i is then the signed distance of the centerline 24-i of this micro-window from the line g, as in FIG Fig. 3 shown.
  • the amount of the offset is thus at most as large as half the height of the microphone window.
  • the reduced offset of the micro-windows of a group is at most 0.5, ie
  • ⁇ 0.5, for i 1, 2, .... N.
  • a stronger togetherness impression of a group arises when the micro-windows of the group have a smaller maximum reduced distance ⁇ max from the straight line g, ie
  • ⁇ ⁇ max , for i 1, 2, .... N, with 5 max ⁇ 0.5.
  • values of ⁇ max between 0.2 and 0.4 have proven to be advantageous.
  • micro-windows 20-i in a group, it is also advantageous if the various adjacent micro-windows 20-i have as different a reduced offset as possible, since then the available offset latitude under the boundary condition of a juxtaposed position is optimally utilized.
  • N micro-windows which should have a maximum reduced distance ⁇ max from the straight line g, advantageously have a minimum offset of at least ⁇ max / (N-1) from one another, ie, it holds true
  • the maximum mutual minimum offset for N micro-star is 2 ⁇ max / (N-1), which is twice as great as the above-mentioned advantageous minimum offset.
  • the offset values of the microphone windows can therefore also be set to sharper conditions, ie
  • the mutual minimum offset must be reduced, but is advantageously still greater than ⁇ max / (N-1).
  • the individual micro-windows can then be arranged approximately with reduced offset values of 0.25, 0.15, 0, -0.12, and -0.3 and then have an irregular distributed mutual offset, which, however, is at least 0.1.
  • Fig. 4 shows a further embodiment of the invention, in which the groups 30 each contain nine or ten microphone windows 20 which are arranged regularly and at the same height in rows of three. For one of the groups 30, a straight line g is drawn, which intersects all the microphone windows 20 of the group.
  • the micro-windows 20 are formed in this embodiment in the form of small circular disks with a diameter of only 0.2 mm. Even if the individual micro-windows 20 are very small, the totality of the micro-windows of the groups 30 nevertheless allows a clear view of the window-security thread 14 embedded in the paper, so that its security features can appear.
  • FIG. 5 Another very decorative embodiment is in Fig. 5 shown.
  • the micro windows 26, 28 of the group 30 are formed in the form of partially cut wavy lines. Unlike the embodiments shown so far, the micro windows 26, 28 of the group 30 have neither all the same shape nor the same size.
  • the drawn line g intersects six microphone windows 26, 28, so that these micro windows are thus juxtaposed in the sense of this description and form a group of 30 adjacent microphone windows.
  • the upper and lower triangular microphone windows 26 are not adjacent to each other, since there is no straight line in the cross-thread direction that would cut all these micro windows. However, the upper triangular micro-windows together with the wavy micro-star 28 form a group of adjacent microphone windows. It is thus also possible that some micro-windows, such as the micro-windows 28, belong to more than one group of adjacent micro-windows.
  • the triangular micro window 26 has a width that is significantly smaller than the thread width (b 26 ⁇ 0.1 b F )
  • the wavy micro window 28 occupy almost the entire thread width (b 28 ⁇ 0.9 b F ).
  • the micro-windows 26, 28 release the view of the embedded in the paper window security thread 14 and allow its security features to appear.
  • the paper-made microfine windows 20 are each formed in the form of a motif, namely in the form of adjacent in the thread transverse direction digits "1" and "5", which together form the number sequence "15".
  • the width b M of the micro window 20 is significantly smaller than the thread width b F , which is for example 4 mm, and is in the embodiment at only about 1 mm (25% of the thread width, number "1") or 1.5 mm (37.5% of the thread width, number "5").
  • the height h M of the micro window 20, so the extension in the yarn longitudinal direction L is about 2 mm and is therefore also substantially smaller than the window areas in conventional window filaments.
  • banknote 10 can also have conventional window areas in addition to window areas with the described micro-windows 20. However, since these are known, will not be discussed in detail in the present application.
  • Fig. 7 used schematically in a section transverse to the direction of yarn advancing drainage 60.
  • the dewatering screen 60 comprises a carrier screen 62 with a screen mesh 64, which is cut out in a subregion 40.
  • the screen fabric 64 has at least one system of interwoven longitudinally extending warp yarns 66 and weft yarns 68 extending transversely thereto.
  • the screen fabric may for example contain a metal fabric, in particular a bronze fabric, a metal-plastic mixed fabric, in particular a bronze-plastic mixed fabric, or even a pure plastic fabric.
  • the support screen 62 can contain both a single-layer and a multi-layer screen fabric, with only a single-layer screen fabric being shown in the figure for the sake of simplicity.
  • a plastic injection-molded insert 50 is arranged, which is connected at its edge to the mesh 64.
  • the connection can in principle be made in many ways, for example by a plastic encapsulation or back injection, with the aid of a plurality along the edge arranged fastening knobs, or by welding or gluing.
  • a presently preferred variant is realized in which the injection molding insert 50 is injected with a corresponding tool shape directly into the cut-out portion 40 of the mesh fabric 64 and thereby enters into a particularly intimate connection with the mesh.
  • the injection-molded insert 50 has a relief 52 in the form of the window areas 16 of the window security thread 14 and contains a base body 54, from which starting motif elements in the form of the window areas 16 extend upwards and project beyond the screen surface. It is essential for the present invention that the motif elements contain small micromotif elements 56, which are formed in the shape and size of the microfibrils 20 and extend upwards with a sharp edge.
  • the relief 52 is produced by means of milling, so that the flanks 57 of the small micromotif elements 56 enclose an angle of approximately 15 ° with the surface normal.
  • the security thread 14 to be embedded is fed as an endless element from a bobbin via a deflection roller to the dewatering screen 60 with the injection molding insert 50.
  • the security thread 14 rests on the motif elements and in particular also on the micromotif elements 56 of the injection molding insert 50.
  • the security thread 14 Since a negative pressure prevails in the interior of the dewatering screen 60, the water of the water-fiber dispersion of the pulp is sucked into the interior of the dewatering screen. In the process, the fibers deposit on the surface of the dewatering screen 30 and the injection-molded insert 50 and form the desired paper web. At the points where the security thread 14 rests on the motif elements or the micromotif elements 56, the security thread is sucked by the negative pressure to the dewatering screen, so that there can accumulate no fiber mass. Accordingly, the security thread 14 remains free of fiber mass in the areas of the motif elements or the micromotif elements 56, while paper fibers accumulate in the surrounding areas and embed the security thread 14 in the paper. The motif elements or the micromotif elements 56 therefore generate just the desired window areas or microfine windows 20 in the forming paper layer.
  • the edge region 22 of the micro-windows is not completely sharp, as in the case of subsequent production of holes by means of punching or laser cutting. Rather, 20 fibers are deposited in the edge region of the micro-window, which project into the opening in an irregular manner and thereby produce the characteristic deckle edge.
  • the extent of edge sharpness or edge blurring of the microfine window 20 can be predetermined by the three-dimensional shape of the micromotif elements 56.
  • Micromotif elements such as the micromotif elements 56 of the Fig. 7 , which have very steep flanks 57 and a small edge width, produce edge regions 22 with little irregularity, while micromotif elements with flatter flanks and larger edge width, such as those in Figs Fig. 8 shown micromotif elements 58, micro-windows 20 with highly irregular edge regions 22 produce.
  • the edge width of a micromotif element is the width within which the height of a micromotif element falls from 90% of the maximum height to 10%.
  • Micro-windows with only slightly irregular marginal areas can be created with micromotif elements 56 having a marginal width of 0.6 mm or less, 0.5 mm or less, or even 0.4 mm or less.
  • micromotif elements 58 with a marginal width of more than 0.6 mm, more than 1 mm or even more than 1.5 mm can produce microfibres with strongly irregular marginal regions 22.
  • the injection molding insert 50 is further provided with a plurality of perforations 48 to ensure dewatering in papermaking also in the field of injection molding.
  • the diameter of the perforations 48 is chosen so small that they do not adhere to fibers in papermaking. Typical perforation diameters are between 100 ⁇ m and a few 100 ⁇ m, for example about 500 ⁇ m.
  • FIGS. 9 and 10 show further advantageous embodiments of inventive micro windows in banknotes or other data carriers.
  • the micro-windows 20 are formed in the form of ovals having a dimension of 0.4 mm x 0.3 mm.
  • a plurality of oval micro-star 20 forms an ensemble 70, the micro-windows 20 are arranged spatially to each other so that they form together as a motif the euro symbol " €".
  • the ensemble 70 includes a plurality of groups 30 of adjacent micro-star 20, wherein in each group, the micro-windows 20 are offset in the yarn longitudinal direction L against each other.
  • the ensemble 70 contains four groups 30, which consist of 2 or 3 micro-windows and for which the associated intersecting lines g are shown for illustration.
  • the micro-windows 20 of the ensemble 70 reveal the view of the window security thread 14 embedded in the paper and allow the security features arranged thereon to be visible.
  • Fig. 9 (b) are several ensembles 70 of micro-star 20, each in the form of the euro symbol €, arranged in the thread longitudinal direction L spaced.
  • the ensembles 70 are offset as a whole in the transverse direction Q against each other slightly to compensate for variations in the introduction of the security thread 14 into the paper, for example due to wobbling. If ⁇ denotes the maximum distance by which a security thread 14 can be introduced into the security paper 12 in the transverse direction Q due to wobbling, it can be ensured by offsetting the Eurosymbol ensembles 70 up to a distance ⁇ to the right and left longitudinally always some complete symbol ensembles 70 lie directly above the security thread 14 and form the desired micro-windows in the form of the euro symbol.
  • the design of the microphone windows need not be limited to the security thread 14, but may also continue laterally beyond, for example in the form of a watermark or by another security feature.
  • Fig. 10 a design in which a plurality of papermaker's fabricated micro-windows 80 is disposed over a window security thread 14 and, as described above, exposes the security features of the embedded window security thread 14.
  • the circular disk-shaped micro-windows 80 contain a plurality of groups of transverse in the transverse direction Q adjacent micro-star.
  • the micro windows 80 have different sizes, but are all significantly smaller than the thread width.
  • the design formed by the micro-starlets 80 is continued outside the security thread 14 by a printed pattern 82 in the form of a printed cloud of points and thereby integrated into the overall design of the banknote 10. This also significantly increases the counterfeit security of the banknote since the security thread 14 can not be replaced by a security thread without a microfine window 80 and, in addition, since the security thread 14 must be aligned correctly with the print pattern 82 in the longitudinal direction.
  • a motif formed by the outline or arrangement of the micro-windows can also be continued, for example, by a watermark.
  • the micro windows which in any case represent thin areas in the paper layer of a data carrier, are preferably part of a watermark which protrudes laterally beyond the window security thread.

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Claims (19)

  1. Support de données (10), notamment document de valeur ou de sécurité, avec un substrat (12)
    qui comprend au moins une couche de papier, un fil de sécurité à fenêtre (14) étant inséré dans le substrat avec une direction longitudinale du fil allongée et une direction transversale du fil perpendiculaire à celle-ci, qui est visible sur au moins une surface du substrat dans certaines zones de fenêtre (16), les zones de fenêtre comprenant au moins un groupe (30) de plusieurs micro-fenêtres (20) disposées les unes à côté des autres dans le sens transversal du fil, caractérisé en ce que les micro-fenêtres sont produites par le fabricant du papier et comportent un bord (22) généré lors de la fabrication du papier avec des irrégularités caractéristiques.
  2. Support de données selon la revendication 1, caractérisé en ce que les zones de fenêtre comprennent au moins un groupe avec trois ou plus, de préférence cinq micro-fenêtres ou plus disposées les unes à côté des autres dans la direction transversale du fil.
  3. Support de données selon la revendication 1 ou 2, caractérisé en ce que dans au moins un groupe de micro-fenêtres disposées les unes à côté des autres, les micro-fenêtres sont décalées l'une contre l'autre le long de la direction longitudinale du fil de telle manière qu'elles ne se trouvent pas à la même hauteur, mais que cela donne une droite dans la direction transversale du fil qui coupe toutes les micro-fenêtres du groupe.
  4. Support de données selon la revendication 3, caractérisé en ce que le groupe contient N micro-fenêtres avec N ≥ 2 et chaque micro-fenêtre comporte une hauteur hi et un déport di par rapport à une droite coupant toutes les micro-fenêtres, avec i= 1, 2, ...N, pour chaque micro-fenêtre, le déport réduit δi = di/hi étant, quant à son montant, plus faible qu'une valeur de distance maximale δmax, laquelle étant inférieure à 0,5 et se situant de préférence entre 0,2 et 0,4.
  5. Support de données selon la revendication 4, caractérisé en ce que les micro-fenêtres comportent un déport minimal entre elles de δmax/(N-1) de telle sorte que | δ i − δ j | ≥ δ max / N − 1
    Figure imgb0007
     est valable pour toutes les paires i,j avec i ≠ j.
  6. Support de données selon l'une quelconque des revendications 1 à 5, caractérisé en ce que la largeur des micro-fenêtres d'au moins un groupe est dans la direction transversale du fil respectivement inférieure à 50%, de préférence moins de 40%, particulièrement de préférence inférieure à 30% de la largeur du fil.
  7. Support de données selon au moins l'une quelconque des revendications 1 à 6, caractérisé en ce que dans au moins un groupe, la longueur des micro-fenêtres parallèlement à la direction longitudinale du fil se situe entre 0,2 mm et 4 mm, de préférence entre 0,3 mm et 3 mm et particulièrement de préférence entre 0,5 mm et 1 mm et/ou la largeur des micro-fenêtres dans la direction transversale du fil se situe entre 0,2 mm et 4 mm, de préférence entre 0,3 mm et 3 mm et particulièrement de préférence entre 0,5 mm et 1 mm.
  8. Support de données selon l'une quelconque des revendications 1 à 7, caractérisé en ce qu'au moins un groupe comprend des micro-fenêtres, dont les contours représentent des motifs, des signes ou une codification, notamment une suite de lettres ou de chiffres.
  9. Support de données selon l'une quelconque des revendications 1 à 8, caractérisé en ce que les zones de fenêtre comprennent une pluralité de micro-fenêtres, dont la disposition spatiale forme un motif, notamment des lettres, des signes ou des figures, de préférence en ce que la pluralité de micro-fenêtres comprend au moins un des groupes de micro-fenêtres disposées les unes à côté des autres.
  10. Support de données selon l'une quelconque des revendications 1 à 9, caractérisé en ce que les micro-fenêtres constituent en tant que points faibles dans la couche de papier du substrat une partie d'un filigrane ressortant latéralement sur le fil de sécurité à fenêtre.
  11. Support de données selon l'une quelconque des revendications 1 à 10, caractérisé en ce qu'un motif formé par le contour ou la disposition des micro-fenêtres continue au-delà sur le fil de sécurité à fenêtre par une autre caractéristique de sécurité.
  12. Support de données selon l'une quelconque des revendications 1 à 11, caractérisé en ce que le fil de sécurité à fenêtre est doté de structures de diffraction, de couches de cristaux liquides, de structures de couches minces, d'évidements dans des couches opaques, notamment métalliques, de substances fluorescentes, de couches magnétiques, conductrices et/ou métalliques.
  13. Tamis d'égouttage pour la fabrication de papier de sécurité avec fil de sécurité à fenêtre, qui est visible dans certaines zones de fenêtre après son incorporation sur au moins une surface du papier de sécurité, le tamis d'égouttage comprenant un tamis de support, qui est doté dans une partie de zone d'une insertion moulée par injection, qui comporte un relief avec des éléments de motif s'étendant vers le haut depuis un corps de base et dépassant la surface du tamis de support, qui sont constitués dans la forme des zones de fenêtre du fil de sécurité à fenêtre et les éléments de motifs comprenant pour la production des micro-fenêtres au moins un groupe de plusieurs éléments de micro-motif situés les uns à côté des autres transversalement au sens fonctionnel du fil à incorporer.
  14. Tamis d'égouttage pour la fabrication de papier de sécurité avec un fil de sécurité à fenêtre, qui est visible dans certaines zones de fenêtre après son incorporation sur au moins une surface du papier de sécurité, le tamis d'égouttage comprenant un tamis de support, qui comporte un gaufrage de filtrage dans une partie de zone, qui comporte un relief avec les éléments de motif dépassant la surface du tamis de support, qui sont constitués dans la forme des zones de fenêtres du fil de sécurité à fenêtre et les éléments de motif comprenant pour la production des micro-fenêtres au moins un groupe de plusieurs éléments de micro-motif disposés les uns à côté des autres transversalement au sens fonctionnel du fil à incorporer.
  15. Tamis d'égouttage selon la revendication 13 ou 14, caractérisé en ce que les éléments de micro-motif comportent transversalement au sens fonctionnel du fil à incorporer une largeur qui est inférieure à 50% de la largeur du fil et se situe entre 0,2 mm et 4 mm.
  16. Tamis d'égouttage selon l'une quelconque des revendications 13 à 15, caractérisé en ce que les éléments de motif comprennent des éléments de micro-motif dont les contours représentent des motifs, des signes ou une codification, notamment une suite de lettres ou de chiffres, et/ou en ce que les éléments de motif comprennent une pluralité d'éléments de micro-motif, dont la disposition spatiale forme un motif, notamment des lettres, des signes ou des figures.
  17. Tamis d'égouttage selon au moins l'une quelconque des revendications 13 à 16, caractérisé en ce que l'insertion moulée par injection ou le gaufrage de filtrage en plus des éléments de motifs comporte un relief de filigrane sous la forme d'un filigrane à générer dans le papier de sécurité pour la production des zones de fenêtre du fil de sécurité à fenêtre.
  18. Tamis d'égouttage selon au moins l'une quelconque des revendications 13, 15 à 17, caractérisé en ce que l'insertion moulée par injection est disposée dans une zone découpée du tamis de support et n'est reliée à celui-ci que dans une zone de bordure de préférence dentelée.
  19. Tamis d'égouttage selon au moins l'une quelconque des revendications 13, 15 à 18, caractérisé en ce que l'insertion moulée par injection comporte une pluralité de perforations dont les dimensions sont si petites qu'aucune fibre n'adhère dans celles-ci lors de la fabrication du papier.
EP16700384.7A 2015-01-20 2016-01-07 Support de données avec fil de sécurité à fenêtre Active EP3247570B1 (fr)

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DE102015000694.0A DE102015000694A1 (de) 2015-01-20 2015-01-20 Datenträger mit einem Fenstersicherheitsfaden
PCT/EP2016/000022 WO2016116256A1 (fr) 2015-01-20 2016-01-07 Support de données avec fil de sécurité à fenêtre

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CN (1) CN107107650B (fr)
DE (1) DE102015000694A1 (fr)
ES (1) ES2715579T3 (fr)
PL (1) PL3247570T3 (fr)
RU (1) RU2672606C1 (fr)
WO (1) WO2016116256A1 (fr)

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Publication number Priority date Publication date Assignee Title
DE102017001347A1 (de) 2017-02-10 2018-08-16 Giesecke+Devrient Currency Technology Gmbh Datenträger mit Fenstersicherheitselement
WO2019107065A1 (fr) * 2017-11-30 2019-06-06 富士フイルム株式会社 Élément de sécurité et dispositif de sécurité
FR3080324B1 (fr) * 2018-04-23 2022-04-01 Oberthur Fiduciaire Sas Feuille securisee
DE102018008162A1 (de) * 2018-10-16 2020-04-16 Giesecke+Devrient Currency Technology Gmbh Verfahren und Vorrichtung zur Herstellung eines Sicherheitspapiers mit Fenstersicherheitsfaden

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DE4314380B4 (de) 1993-05-01 2009-08-06 Giesecke & Devrient Gmbh Sicherheitspapier und Verfahren zu seiner Herstellung
GB9828770D0 (en) * 1998-12-29 1999-02-17 Rue De Int Ltd Security paper
GB2395959B (en) 2002-12-05 2004-11-10 Rue De Int Ltd Method and apparatus for manufacturing a fibrous substrate incorporating an el ongate element
DE102010019766A1 (de) * 2010-05-07 2011-11-10 Giesecke & Devrient Gmbh Verfahren zur Erzeugung einer Mikrostruktur auf einem Träger
DE102010025775A1 (de) * 2010-07-01 2012-01-05 Giesecke & Devrient Gmbh Sicherheitselement sowie Wertdokument mit einem solchen Sicherheitselement
FR2976954B1 (fr) * 2011-06-23 2013-07-12 Arjowiggins Security Fil de securite
FR2979641B1 (fr) * 2011-09-07 2013-09-27 Oberthur Technologies Bandeau de securite et document qui en est pourvu
CA3051305C (fr) * 2011-09-20 2022-11-29 Bank Of Canada Dispositifs d'affichage de securite, leur fabrication et leur utilisation
CN103358808B (zh) * 2012-03-28 2015-12-16 中钞特种防伪科技有限公司 一种光学防伪元件及使用该光学防伪元件的产品
DE102012014894A1 (de) * 2012-07-27 2014-01-30 Giesecke & Devrient Gmbh Entwässerungssieb
DE102013008082A1 (de) * 2013-05-10 2014-11-13 Giesecke & Devrient Gmbh Wert- und Sicherheitsdokument mit einem Wasserzeichen und einem Sicherheitsfaden
DE102014008752A1 (de) 2014-06-12 2015-12-17 Giesecke & Devrient Gmbh Spritzgusswerkzeug und Prägestock zum Einsatz bei der Herstellung von Wasserzeichenpapier

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ES2715579T3 (es) 2019-06-04
WO2016116256A1 (fr) 2016-07-28
EP3247570A1 (fr) 2017-11-29
CN107107650A (zh) 2017-08-29
CN107107650B (zh) 2019-05-07
RU2672606C1 (ru) 2018-11-16
DE102015000694A1 (de) 2016-07-21
PL3247570T3 (pl) 2020-01-31

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