EP3317113B1 - Document de sécurité avec de couches de materiau micro-perforés et procédé pour sa fabrication - Google Patents

Document de sécurité avec de couches de materiau micro-perforés et procédé pour sa fabrication Download PDF

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Publication number
EP3317113B1
EP3317113B1 EP16735850.6A EP16735850A EP3317113B1 EP 3317113 B1 EP3317113 B1 EP 3317113B1 EP 16735850 A EP16735850 A EP 16735850A EP 3317113 B1 EP3317113 B1 EP 3317113B1
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EP
European Patent Office
Prior art keywords
perforations
material layers
cross
opaque
opaque material
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP16735850.6A
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German (de)
English (en)
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EP3317113A1 (fr
Inventor
Olga Kulikovska
Stefan TRÖLENBERG
Matthias VORO
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.)
Bundesdruckerei GmbH
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Bundesdruckerei GmbH
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Publication of EP3317113A1 publication Critical patent/EP3317113A1/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
    • B42D25/346—Perforations
    • 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
    • B42D25/40—Manufacture
    • B42D25/405—Marking
    • B42D25/43—Marking by removal of material
    • B42D25/435—Marking by removal of material using electromagnetic radiation, e.g. laser
    • 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
    • B42D25/45—Associating two or more layers

Definitions

  • the invention relates to a security document which is produced from a plurality of substrate layers, and to the production thereof.
  • the invention relates to such security documents comprising microperforated opaque substrate layers.
  • Modern value and / or security documents in particular card-shaped value and / or security documents made of polycarbonate (PC), are often produced in the form of composite bodies.
  • the composites are composed of several substrate layers, wherein the substrate layers are laminated to form a composite body.
  • security documents which comprise at least one security feature.
  • Security features are those features that make it difficult to imitate, falsify and / or duplicate a document.
  • security documents often include individual security features that are difficult to produce, security documents are often corrupted. This means that manipulations are performed on a genuine and authorized security document, for example by modifying individual information stored in the document.
  • security documents which are assigned to a person, for example passports, identity cards, driving licenses, identification cards or the like, in this case, for example, data identifying a person is exchanged and / or modified.
  • an attempt is made to arrange security features inside the security document in order to make access to these security features more difficult.
  • an opaque substrate or material layer is provided with individual round openings, so that semi-transparent areas with microperforations arise. At the positions where such apertures are formed, light may pass through the opaque layer.
  • Such a microperforation can form personalized and / or non-personalized patterns. If a security document is provided with such an opaque substrate layer or material layer, then the pattern or the Microperforation with appropriate lighting, such as a backlight, visible to a human observer or by means of technical aids and verifiable.
  • a security document which has a perforation pattern comprising holes with an elongated cross-section. From different viewing directions, which are not perpendicular to the surface of the document, the holes have a different optical transmission.
  • a security document comprises at least one further opaque substrate or material layer.
  • perforations or a micro-perforation are also formed, can pass through the light. If the openings of the opaque substrate or material layer and the openings of the further opaque substrate or material layer are positioned corresponding to one another, then light can pass through the openings of both layers. In this way, different, also dependent on the viewing direction, optical effects can be achieved.
  • a disadvantage of the above-mentioned security documents and methods is that, when using at least two opaque substrate or material layers with introduced perforations or microperforations, a precise arrangement of the two layers one above the other is necessary, so that the individual openings lie one above the other in pairs and light through both apertures the one as well as the other opaque substrate or material layer can pass through. Even a small deviation of the relative positions leads to undesired optical effects, which may range from unwanted brightness variations due to partial coverage of the openings to complete covering or covering and undesired pattern formation.
  • micro-perforation placement makes it difficult to use such micro-perforations in partially transparent electronic document cards where electronic elements are located between and concealed by the two opaque substrate or material layers.
  • the invention is therefore based on the problem to provide a security document and a manufacturing method in which arranging the openings in different substrate layers is simplified and thus improved.
  • the invention is based on the idea to change the geometric shape of the cross sections of the openings so that an arrangement of openings in two opaque layers is simplified one above the other.
  • This is achieved by the geometric shapes of the cross sections of the openings are not configured rotationally symmetric or are.
  • the geometric shapes have a longitudinal direction, which have a relation to transverse directions, larger, preferably even maximum, extent.
  • the openings of an opaque substrate layer or material layer are or are then rotated relative to the openings in the further opaque substrate or material layer in a projection plane which corresponds to holes of the plane of the material layers perpendicularly introduced. In this way, arranging individual openings is simplified one above the other, since the tolerance range in which sets a constant coverage of the openings is increased or is.
  • the advantage of the invention thus lies in the possibility of creating consistent and reproducible optical properties of the security document when viewed through the microperforations formed therein.
  • the appearance is uniform and there are no disturbing patterns due to misalignments.
  • the targeted positioning or arranging the openings in the at least two opaque layers additionally makes it possible to adjust the brightness values for each pixel formed from a pair of apertures, so that a further dimension for influencing the visual impression is created.
  • a security document is any document that comprises at least one security feature, usually a plurality of different security features.
  • Security documents include, for example, ID documents, passports, identity cards, identification cards, driver's licenses, vehicle registration documents, vehicle registration documents, access cards, company identity cards, access cards, bank cards, credit cards, visas, but also tags secured against forgery, tickets, banknotes, postage stamps, securities or the like.
  • security documents embodying value, such as postage stamps, securities or banknotes are also referred to as value documents.
  • value documents are also understood as security documents.
  • each feature is referred to, which makes an imitation, falsification, manipulation or the like of an object impossible or difficult.
  • the substrate layer is here understood in each case as a self-supporting flat entity.
  • Flat in this context means that a material thickness of the substrate layer perpendicular to a planar extension of a top and a bottom, which are oriented substantially parallel to each other, is substantially smaller than the edge lengths of these top and bottom.
  • a substrate layer may in particular in the form of a Film can be provided, which can be present as a sheet or endless material from a roll.
  • a substrate layer perpendicular to the main surfaces has a uniform material thickness measured at all locations parallel to the surface normal.
  • a bulk layer is a layer having a finite layer thickness of an article, in particular a composite body.
  • the material layer is considered to be a bulk layer in a composite which has a substantially homogeneous nature with regard to its thermoplastic base material.
  • Openings are hollow volumes that form a connection between two opposing surfaces through a substrate layer.
  • An opening represents the smallest unit of a microperforation, but in the following a multiplicity of such openings need not necessarily be arranged regularly or uniform. Preference is given to openings with a diameter of 0.2 mm to 2.5 mm. In particularly preferred embodiments, the openings have diameters in the range of 0.3 mm to 2 mm. In very particularly preferred embodiments, the diameters are in the range of 0.4 mm to 1.7 mm. By diameter is meant the largest extent of an aperture across the aperture direction.
  • the opening direction is the direction along which the opening is formed. This direction may coincide with or be inclined with a surface normal of the substrate layer. In case of doubt, the direction of breakthrough, the direction assumed, is perpendicular to the maximum diameter.
  • transparent or translucent and opaque refer in each case to the state that a material assumes after lamination with the high-temperature high-pressure lamination process.
  • polycarbonate films which form transparent layers of material in the finished composite often are translucent prior to lamination due to some surface roughness.
  • An opaque substrate layer which is likewise produced, for example, on a polycarbonate basis, can be made opaque, for example via additives of titanium dioxide, so-called titanium white.
  • An arrangement pattern denotes a set of apertures arranged in the form of a pattern such as a character, a number or an image.
  • the arrangement pattern can comprise both information about a position and an orientation of the openings on a substrate or material layer.
  • Non-rotationally symmetrical cross-sectional areas of apertures have one or optionally a plurality of preferred directions, which can or can be determined on the basis of specified criteria.
  • a direction of a maximum longitudinal extent or a longitudinal extent of the cross-sectional area may be selected as an excellent direction.
  • that straight line path with maximum extension, which connects two points of the cross-sectional area can define the preferred direction.
  • the direction of the route determines the preferred direction.
  • an orientation is usually irrelevant, at least if the cross-sectional area is symmetrical to the line indicating the preferred direction.
  • the main axis passing through both focal points may indicate the preferred direction.
  • the preferred direction may be indicated by, for example, a maximum-length path connecting a centroid of the cross-sectional area to another point of the cross-sectional area.
  • the centroid is the point in the plane of the cross-sectional area for which the first moment of the points of the cross-sectional area is zero.
  • several predefined criteria can be used together for the determination, in order to arrive at a clear preferred direction as far as possible.
  • a cross-sectional area has a symmetry, then several directions can be similar. It can then be selected a direction.
  • the preferred direction is determined by the shape of the cross-sectional area transversely to the direction of perforation.
  • the preferred direction of the cross-sectional area of an opening also determines the preferred direction of the opening.
  • the case of a rectangular (not square) cross-sectional area will be considered here.
  • the diagonals set equal preferential directions with respect to the criterion that the direction is determined by the maximum-length path connecting two points of the cross-sectional area. If one chooses, however, as the criterion that a direction of the path of maximum length is selected as the preferred direction, with respect to which the cross-sectional area has a mirror symmetry, the choice of the preferred direction becomes clear.
  • the distance (center-long distance), which connects the centers of the short side edges determines the preferred direction.
  • suitable criteria for a particular cross-sectional shape in order to determine a predetermined by the form suitable and preferably unique preferred direction.
  • a direction of a longitudinal side edge can also be selected as a criterion for the determination.
  • Breakthroughs are rotated against each other when the cross-sectional areas are rotated perpendicular to the respective aperture directions against each other.
  • Cross-sectional areas are mutually rotated when their preferred directions (or, in the case of several equivalent preferred directions, corresponding preferred directions) intersect at an angle. If the apertures are formed in different layers of material that are superimposed on one another, the preferred direction of one cross-sectional area of the one aperture in the one material layer along the opening direction of the other aperture in the other material layer is projected into the plane of the cross-sectional area of this other aperture. Whether the preferred directions intersect at an angle and thus are rotated against each other, is determined in the plane of this cross-sectional area.
  • Two cross-sectional areas overlap each other with respect to one direction if, after being projected along this direction, they have a common sectional area in a common plane whose surface normal coincides with this direction or is parallel.
  • the projected cross-sectional areas overlap in the common projection plane.
  • a security document comprising a laminated document body having a front side and a back side, the laminated document body having at least two opaque material layers each having an inner side and an outer side respectively, the inner sides of the at least two opaque material layers facing each other, and wherein the at least two opaque material layers have openings, wherein cross-sectional areas of the openings in a plane of the material layers are not rotationally symmetrical, wherein a plurality of cross-sectional areas of the openings of one of the at least two opaque material layers is rotated relative to cross-sectional areas of the openings in a second of the at least two opaque material layers.
  • a method for producing a security document comprising the following steps: providing at least two opaque substrate layers, each having an inner side and an outer side, wherein the inner sides of the at least two opaque layers face each other, and wherein the at least two opaque substrate layers Have openings; Arranging the first and the second of the at least two opaque substrate layers to form a substrate layer stack, laminating the substrate layer stack to a document body, wherein cross-sectional areas of the openings in a plane of the substrate layers are not rotationally symmetric and arranging the first and the second of the at least two opaque substrate layers so made is that a plurality of cross-sectional areas of the openings of one of the at least two opaque material layers is rotated relative to cross-sectional areas of the openings in a second of the at least two opaque material layers.
  • the advantage of the invention is that the asymmetrical cross-sectional areas of the openings of the substrate layers are easier to arrange one above the other, so that a larger tolerance range with respect to the arrangement of the openings is present in the production of the security document. This increases the quality and the reproducibility in the production of the security feature formed by the perforations or a micro-perforation.
  • the openings can be introduced for example by means of a laser processing.
  • areas in which openings are to be formed are locally heated with a laser so that a plastic deformation of the illuminated area occurs and a hollow volume is formed.
  • the openings can be refilled during the subsequent lamination by receiving transparent material of adjacent substrate layers.
  • the laser processing allows a flexible and for each produced security document individual processing during manufacture.
  • any other manufacturing method suitable for forming or introducing apertures can also be used.
  • the introduced apertures can be formed, at least in partial regions of one of the at least two opaque substrate or material layers, at an angle to the surface normal of the plane.
  • the openings, at least in partial areas of one of the at least two opaque material layers may be formed parallel to the surface normal of the plane.
  • a longitudinal direction can be assigned to a geometric shape of the cross-sectional areas of the apertures, wherein the geometric shape in the longitudinal direction has a greater extent in comparison to expansions in transverse directions.
  • the cross-sectional areas of the openings in a plane of the material layers have the form of ellipsoids, rectangles, crescents or rhombuses.
  • the cross-sectional areas of the openings in the plane of the material layers each have a preferred direction.
  • the preferred direction is in each case the direction of the longitudinal direction of the cross-sectional area of the openings.
  • At least one transparent or translucent material layer is disposed between the at least two opaque material layers. This layer is also referred to here as an intermediate layer.
  • opaque security features or structures may be formed or arranged, for example a microchip and antenna structures or the like.
  • a difference in observable brightness between apertures with direct light transmission and "indirectly" backlit apertures is not or hardly noticeable. If pattern arrangements of the openings in the two opaque substrate or material layers are then formed differently, the optical impressions of the front side and the rear side are different.
  • the openings in the opaque substrate or material layers are arranged one above the other so that in certain areas light can pass through the openings of both opaque substrate or material layers and thus becomes visible on the opposite side .
  • One above the other means that light can penetrate in a straight line directly from the front of the document body to the back of the document body, or light can penetrate directly from the back of the document body to the front of the document body.
  • This effect can be realized with the at least one transparent or translucent material layer or without the at least one transparent or translucent material layer.
  • the cross-sectional areas of the openings each have the same shape. This facilitates the manufacturing process, for example, by the fact that parameter values of the geometric shapes of the openings are the same. This reduces the planning effort. In addition, results for a viewer a uniform visual impression for each of the openings.
  • a particularly advantageous embodiment provides that the cross-sectional areas of the openings of the first of the at least two opaque substrate or material layers and the cross-sectional areas of the openings of the second of the at least two opaque substrate or material layers in the plane of the substrate or material layers respectively with respect to an axis of rotation, which is oriented transversely or perpendicular to the substrate or material layers, are rotated at an angle to each other.
  • the cross-sectional areas are preferably twisted relative to this viewing direction or their preferred directions with respect to this viewing direction as a rotation axis.
  • the openings in the two opaque substrate or material layers can be positioned one above the other more easily such that the respective overlap region of the openings in the first and the second of the at least two opaque substrate or material layers different security documents remains largely the same.
  • a larger tolerance range for a constant brightness of a pixel formed from two superimposed apertures can be achieved in the production.
  • the cross-sectional areas of the openings each have the same shape.
  • the cross-sectional areas of the openings of the first of the at least two opaque material layers which overlap with respect to a viewing direction with one of the cross-sectional areas of the openings of the second of the at least two opaque material layers, in the plane of the material layers in each case by one Are rotated angle to each other.
  • Security documents which comprise individual information in the form of a personalized security feature can be regarded as being particularly secure against counterfeiting or imitation. Therefore, an embodiment in which it is provided that an arrangement pattern of the cross-sectional areas of the openings in at least one of the at least two opaque substrate or material layers forms or represents personalization information is particularly advantageous.
  • arrangement patterns in the form of numbers, letters, texts or images are possible.
  • an arrangement pattern be it personalized or not personalized, can be designed.
  • the openings of the first and the second of the at least two opaque material layers are positioned and / or formed in the same arrangement patterns.
  • the visual impression of the array patterns may be identical or substantially identical to an optical impression when viewed from the back.
  • the visual impression when viewed from the back can also correspond to a mirrored optical impression of the front.
  • a third embodiment of the arrangement pattern is possible.
  • the openings of the first and the second of the at least two opaque substrate or material layers are positioned and / or formed in different arrangement patterns.
  • the arrangement patterns are then different when viewing the front side and when viewing the back side, and also can not be converted into one another via symmetry operations.
  • a particularly advantageous embodiment provides that, in particular in embodiments with the at least one transparent or translucent material layer between the at least two opaque material layers, at least one of the at least two opaque substrate or material layers, at least on the insides, is white.
  • the insides of the at least two opaque substrate or material layers are white.
  • the openings of the first of the at least two opaque substrate or material layers and the openings of the second of the at least two opaque substrate or material layers are arranged so that when viewed the viewer facing openings for different areas on the security document different brightness values are generated. In this way it is possible to create images with different brightness values and to provide an additional feature to increase the security against counterfeiting.
  • Different brightness values are achieved, for example, in that the overlap of two apertures arranged one above the other is or will be of different sizes. Depending on how large the overlap is, then more or less light can pass directly through the cross section formed jointly by the two openings.
  • Another possibility is the variation of the size and / or geometric shape of a cross section of the individual openings. This also makes it possible, above all, to achieve different brightness values for the same area on a front side and a rear side of the security document.
  • a further security feature can be created in the security document.
  • the security feature is formed in the form that in each case only one pattern arrangement is visible on the side of the security document facing a viewer, without the pattern arrangement of the side facing away from the viewer being visible.
  • the cross-sectional area of the apertures, the distance between the at least two opaque material layers or the layer thickness of the transparent substrate or material layer between the at least two opaque substrate or material layers and the Remission properties and / or the diffuse scattering properties of the inner sides of the at least two opaque material layers are selected so that when a backlighting of the back of the document body and simultaneous viewing of the front of the document body only pattern arrangements on the front of the document body are visible, and in a backlighting of the front of Document body while viewing the back of the document body only pattern arrangements on the back of the document body are visible.
  • the layer thickness of the transparent substrate or material layer between the at least two opaque substrate or material layers can be selected larger than the dimensions.
  • Light that passes through the apertures in the opaque substrate or material layer on the side facing away from the viewer in the document body is then often enough reflected and / or remitted and / or scattered within the transparent substrate or material layer, so that a diffuse and homogeneous backlighting of the openings in the opaque substrate or material layer takes place on the side facing the observer. In the homogeneous backlighting, the pattern arrangement of the openings in the opaque layer on the side facing away from the viewer no longer off.
  • the openings in the opaque layer on the side facing the viewer are visible. If the security document is turned to the other side and viewed from there, the same effect can be achieved, provided that the openings in the second of the at least two opaque substrate or material layers are selected accordingly. Decisive here is always that a backlight in a viewer for the apertures facing him, the exiting light at least partially originates from a direct transmission, does not cause particularly high brightness to breakthroughs whose light only from a multiple reflection, remittance and / or scattering in the transparent substrate or material layer produced diffuse backlighting comes.
  • the aforementioned embodiment is particularly suitable for providing a basic value of brightness in individual areas on the security document.
  • the homogeneous backlighting can provide low brightness as a base value.
  • the apertures are made larger, so that a total of more light can pass through the apertures of the side facing the observer. In this way, a plurality of pattern arrangements can be formed, which have different bright areas.
  • a security document according to the invention may also comprise further security features. These can be applied to the at least two opaque or else further substrate layers, for example by means of printing processes.
  • the security features may also be holograms of any kind or electronic components.
  • the document body may also comprise one or more protective layers.
  • the substrate layers or the document body is preferably made of polycarbonate.
  • Fig. 1 is a schematic representation of a cross section through a security document 1 shown in the prior art.
  • the security document 1 in this case comprises a plurality of material layers 3 formed from substrate layers 2.
  • Such substrate layers 2 or material layers 3 may be formed, for example, as transparent substrate layers 4, as opaque substrate layers 5 or as substrate layers 2 with electronic components 6.
  • the opaque substrate layers 5 are in Fig. 1 and in the following each characterized by hatching.
  • the opaque 5 substrate layers 2 have round apertures 7, 7 ', which cause light at the positions of the perforations 7, 7' formed by hollow volumes to pass through the opaque substrate layers 2.
  • FIG. 12 is a schematic plan view of an opaque substrate layer 5 of the prior art.
  • the opaque substrate layer 5 comprises round openings 7 arranged in a regular pattern arrangement 8.
  • Fig. 3 shows a schematic plan view of a prior art security document according to the in Fig. 1 shown embodiment in which two opaque substrate layers 5, each with round openings 7, 7 'are arranged incorrectly one above the other.
  • the first opaque substrate layer 9 is displaced laterally relative to the second opaque substrate layer 10, so that the round apertures 7, 7 'of both opaque substrate layers 9, 10 are not arranged exactly one above the other.
  • the consequence of the erroneous arrangement is that unwanted patterns 11 can arise, which can lead to fluctuations in brightness and an uneven image. As a result, the quality of the security feature formed by the pattern arrangements 8, 8 'of the round openings is reduced.
  • a security document 1 comprises a document body 200.
  • the document body 200 comprises a first opaque material layer 201 and a second opaque material layer 202, which are arranged one above the other.
  • the respective inner sides 205 of the two opaque material layers 201, 202 face each other and the respective outer sides 206 point in the direction of the front 30 and the back 31 of the document body 200.
  • a transparent material layer 203 is arranged between the two opaque material layers 201, 202.
  • the document body 200 is protected on its front side 30 and its rear side 31 by an optional protective layer 204. Openings 12 are introduced into the first opaque material layer 201 so that light can pass through the first opaque material layer 201 at these locations.
  • Openings 12 ' are also formed in the second opaque material layer 202, wherein they have a greater extent in cross-section than the openings 12 in the first opaque material layer 201, since their longitudinal directions 14, 14' are oriented at right angles to one another. The direction 14 is perpendicular to the plane of action. Since the apertures 12 'in the second opaque material layer 202 are formed at the same positions as the apertures 12' in the first opaque material layer 201, light can pass from the front 30 of the document body 200 to the back 31 of the document body 200. Depending on the arrangement patterns of the apertures 12, 12 ', different optical impressions can be obtained when viewed from the front 30 and from the back 31.
  • a substrate layer refers to a layer before lamination and a material layer to the same layer after lamination.
  • FIG. 4a shows an embodiment similar to the FIG. 4 in which, however, the transparent material layer 203 of the embodiment according to FIG. 4 is missing.
  • FIGS. 5a, 5b and 5c show an embodiment of the invention. It shows Fig. 5a schematically a first opaque substrate layer 9.
  • the first opaque substrate layer 9 comprises a regular pattern arrangement 8 from Openings 12.
  • the pattern arrangement 8 here comprises a field of 8 by 8 openings 12.
  • cross-sections 17 of the openings 12 are in each case not rotationally symmetrical.
  • the openings 12, as shown here are formed as rectangles 13, which comprise an excellent longitudinal direction 14, wherein the longitudinal direction 14 has a greater extent than the transverse direction 15 (see enlarged detail 50 in FIG Fig. 5a ).
  • the apertures 12 may have been introduced, for example, by means of local laser processing of the opaque substrate layer 9. In principle, however, other methods can be used. Typically, the dimensions of the cross sections 17 of the geometric shapes of the apertures 12 are ⁇ 100 ⁇ m. Depending on the field of application and the desired visual impression, however, other, deviating, dimensions may result.
  • Fig. 5b schematically shows a second opaque substrate layer 10.
  • the second opaque substrate layer 10 comprises a regular pattern arrangement 8 'of openings 12'.
  • the pattern arrangement 8 of the first opaque substrate layer 9 likewise comprises a field of 8 ⁇ 8 openings 12'.
  • cross-sections 17 of openings 12 ' are also not rotationally symmetrical in this case, but are in the form of rectangles 18, for example.
  • rectangles 18 are rotated in relation to the rectangles 13 in the first opaque substrate layer 9 by approximately 90 ° in the plane of the substrate layers 9, 10, so that a longitudinal direction 14 'of the rectangles 18 of the second opaque substrate layer 10 also by 90 ° is rotated (see enlarged section 51 in Fig. 5b ).
  • Fig. 5c The advantage of the invention appears in Fig. 5c , in which the first 9 and the second 10 opaque substrate layers are arranged one above the other in a plan view.
  • the arrangement of the two opaque substrate layers 9, 10 and thus of the individual mutually rotated apertures 12, 12 ' was not carried out exactly, the resulting overlap cross section 19, through which light can pass from one side to the other side, remains substantially the same (see the enlarged FIGS Section 52 in Fig. 5c ). Shifts, for example, the first 9 of the two opaque substrate layers 9, 10 laterally relative to the second 10 of the two opaque Substrate layers 9, 10, so the overlap cross section 19 over almost the entire length of the longitudinal directions 14, 14 'remains the same.
  • FIG. 6 exemplified another embodiment is shown.
  • a first opaque substrate or material layer 9 is arranged over a second opaque substrate or material layer 10.
  • openings 12 12 ' are formed.
  • the apertures 12 in the first opaque substrate or material layer 9 have a longitudinal direction 14 in the vertical direction
  • the apertures 12 'in the second opaque substrate or material layer 10 have a longitudinal direction 14' in the horizontal direction, so that the longitudinal directions 14, 14 'the openings 12, 12' are approximately at a right angle to each other.
  • the apertures 12 of the first opaque substrate or material layer 9 are arranged in a pattern arrangement 8, wherein the pattern arrangement 8 corresponds to a triangle on the base.
  • the openings of the second opaque substrate or material layer 10 are arranged in a further pattern arrangement 8 ', which differs from the one pattern arrangement 8, and wherein the further pattern arrangement 8'. forming a triangle on the top.
  • the pattern arrangements 8, 8 ' are positioned relative to one another such that the respective center points 20, 20' of the triangles are superimposed.
  • the cross-sections of the openings in the embodiments shown have the geometric shape of ellipsoids, but may in principle also have other geometric shapes. For example, rectangles, crescents or rhombuses are mentioned here.
  • Fig. 7 shows a further embodiment.
  • the embodiment is largely analogous to the embodiment shown in FIG Fig. 6 is shown.
  • the same reference numerals designate the same features.
  • Openings 12 are formed in a first opaque substrate or material layer 9, wherein the openings 12 are arranged or positioned in a pattern arrangement 8.
  • the pattern arrangement 8 corresponds in its geometric form to the Latin letter "Y".
  • a second opaque substrate or material layer 10 which is or is arranged behind the first opaque substrate or material layer 9, openings 12 'are formed, which are or are positioned in a pattern arrangement 8'.
  • the pattern arrangement 8 ' corresponds to a regular background grid 24.
  • the apertures 12 in the first opaque substrate or material layer 9 are not vertically aligned with respect to their longitudinal direction 14 but are clockwise or counterclockwise by about 45 ° with respect to their longitudinal direction 14 'horizontally oriented apertures 12' in the second opaque substrate - or material layer 10 is rotated.
  • Fig. 8 schematically shows a further embodiment.
  • the embodiment is largely analogous to the embodiment shown in FIG Fig. 7 is shown.
  • the same reference numerals designate the same features.
  • an arrangement pattern 8 is formed, which represents a serpentine line 25, wherein the serpentine line 25 should stand as an example and representatively as a building block for a guilloche.
  • openings 12 ' are formed as a background grid 24.
  • FIGS. 9a and 9b schematically show the visual impression of the embodiment of the Fig. 6 viewed from a front side or a rear side.
  • the Dashed lines are shown only for explanation. If the two opaque substrate or material layers 9, 10 are correctly positioned, the apertures 12, 12 'in the finished security document are visible and / or detectable in the case of backlighting for a viewer or a technical aid.
  • the pattern of a hexagon 26 is formed.
  • the remaining openings 22 appear at a lower brightness than the apertures 12, 12 'within the intersection 21, since there is no direct fluoroscopy through both opaque substrate or material layers 9, 10 therethrough, but only a backlight means in the at least one transparent layer of reflected, remitted and / or scattered light.
  • the remaining rear 23 openings are not visible from a front side 30, but only from a rear side 31, wherein the remaining 22 openings are not visible from the back side 31 again.
  • FIGS. 10a to 10e show schematically a further embodiment of the invention.
  • Fig. 10a shows a first opaque substrate layer 9, wherein in the first opaque substrate layer 9 in its longitudinal direction 14 horizontal openings 12 are formed.
  • An arrangement pattern 8 formed from the apertures 12 forms on the left side a Latin letter "K" 27 and on the right side an area 32 with a background grid 24.
  • Fig. 10b shows a second opaque substrate layer 10, wherein in the second opaque substrate layer 10 in its longitudinal direction 14 'vertical openings 12' are formed.
  • An arrangement pattern 8 'formed from the apertures 12' forms on the left side a region 32 'with a background grid 24' and on the right side a mirrored Latin letter 'K' 27 '.
  • Fig. 10c It is shown how the first 9 and the second 10 opaque substrate layers are stacked. With regard to its outer edge boundary 33, 33 ', the two opaque substrate layers 9, 10 are arranged exactly one above the other. A transparent substrate layer is not shown here for reasons of clarity, but is arranged in the production between the two opaque substrate layers 9, 10.
  • the Latin letter "K" 27 formed in the pattern array 8 of the first opaque substrate layer 9 is located in front of the background grid 24 'in the second substrate layer 10.
  • the background grid 24 in the first opaque substrate layer 9 is then in front of the mirrored Latin letter "K" 27 '.
  • FIG Fig. 10d and Fig. 10e Optical impressions resulting from viewing from a front side 30 and a back side 31 are shown in FIG Fig. 10d and Fig. 10e shown.
  • the Latin letter K 27 is visible on the left side
  • the background raster 24 is visible on the right side.
  • the complete background grid 24 is visible in the first opaque substrate layer 9 from the front side 30, since enough light is present in the transparent substrate layer between the two opaque substrate layers 9, 10 is reflected, remitted and / or scattered. The reflected, remitted and / or scattered light then backlit the background grid 24 in the first opaque substrate layer 9.
  • the same visual impression emerges as from the front side 30.
  • the left-hand side shows the Latin letter K 27 ', which now no longer appears mirrored, and on the right side, the background grid 24' second opaque substrate layer 10 can be seen. That is, it is possible to produce the same visual impression from each of the front side 30 and the rear side 31 when viewed at a time.
  • Fig. 11 shows a schematic flow diagram of the manufacturing process.
  • at least one transparent substrate layer is optionally provided 101.
  • at least two opaque substrate layers 102 are provided.
  • the provided substrate layers may each comprise previously introduced openings, or the provision itself may comprise two further optional method steps.
  • arrangement patterns are received 103.
  • the arrangement patterns comprise the description of how the openings are to be introduced into the at least two opaque substrate layers, for example a position and / or an orientation of the openings on the opaque substrate layers.
  • non-rotationally symmetrical apertures are introduced into the at least two opaque substrate layers after specification of the received arrangement patterns. This can be carried out, for example, by means of laser processing.
  • positioning data is received 105 in the next method step.
  • the positioning data contain information about how the at least two opaque substrate layers and the at least one transparent substrate layer should be arranged relative to one another.
  • the substrate layers are then arranged 106 to form a substrate layer stack.
  • the substrate layer stack is then laminated 107 to a document body.
  • the introduced apertures may also include personalization information.
  • the received arrangement patterns include, for example, corresponding personalization information.
  • the personalization information may include, for example, characters, symbols, numbers, letters, letters and / or images.

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Claims (15)

  1. Document de sécurité (1), comprenant
    un corps de document stratifié (200) avec un côté avant et un côté arrière, dans lequel le corps de document stratifié (200) présente
    au moins deux couches de matériau opaques (9, 10, 201, 202) avec respectivement un côté intérieur (205) et respectivement un côté extérieur (206), dans lequel les côtés intérieurs (205) des au moins deux couches de matériau opaques (9, 10, 201, 202) sont tournés l'un vers l'autre,
    dans lequel les au moins deux couches de matériau opaques (9, 10, 201, 202) présentent respectivement des passages (12, 12'),
    dans lequel des sections transversales des passages (12, 12') ne sont pas réalisées symétriques en rotation dans un plan des couches de matériau (9, 10, 201, 202, 203, 204) respectives et respectivement une direction longitudinale (14, 14') peut être associée en tant que direction préférentielle à une forme géométrique des sections transversales des passages (12, 12'), dans lequel la forme géométrique présente dans la direction longitudinale (14, 14') une extension plus grande par rapport à des extensions dans des directions transversales (15, 15'),
    dans lequel les sections transversales des passages (12) d'une (9, 201) des au moins deux couches de matériau opaques (9, 10, 201, 202) et les sections transversales des passages (12') d'une deuxième (10, 202) des au moins deux couches de matériau opaques (9, 10, 201, 202), au moins pour une partie des sections transversales des passages (12, 12'), respectivement, au moins en partie, sont agencées l'une au-dessus de l'autre par rapport à une direction d'observation repérée, caractérisé en ce qu'une pluralité de sections transversales des passages (12) de l'une des au moins deux couches de matériau opaques (9) est tournée par rapport aux sections transversales des passages (12') dans la deuxième des au moins deux couches de matériau opaques (10), de sorte que leurs directions préférentielles se coupent selon un angle.
  2. Document de sécurité (1) selon la revendication 1, caractérisé en ce qu'au moins une couche de matériau transparente ou translucide est agencée entre les au moins deux couches de matériau opaques.
  3. Document de sécurité (1) selon l'une quelconque des revendications précédentes, caractérisé en ce
    que les sections transversales des passages (12, 12') présentent respectivement la même forme.
  4. Document de sécurité (1) selon l'une quelconque des revendications précédentes, caractérisé en ce
    que les sections transversales des passages (12) de la première (9, 201) des au moins deux couches de matériau opaques (9, 10, 201, 202), qui chevauchent par rapport à la direction d'observation une des sections transversales des passages (12') de la deuxième (10, 202) des au moins deux couches de matériau opaques (9, 10, 201, 202), sont tournées respectivement l'une vers l'autre selon un angle dans le plan des couches de matériau (9, 10, 201, 202, 203, 204).
  5. Document de sécurité (1) selon l'une quelconque des revendications précédentes, caractérisé en ce
    qu'un motif d'agencement (8, 8') des sections transversales des passages (12, 12') dans au moins une des au moins deux couches de matériau opaques (9, 10, 201, 202) forme ou représente une information de personnalisation.
  6. Document de sécurité (1) selon l'une quelconque des revendications précédentes, caractérisé en ce
    que les passages (12) de la première (9, 201) des au moins deux couches de matériau opaques (9, 10, 201, 202) et les passages (12') de la deuxième (10, 202) des au moins deux couches de matériau opaques (9, 10, 201, 202) sont agencés de sorte que, lors de l'observation des passages (12, 12') tournés vers un observateur, différentes valeurs de luminosité soient générées pour différentes zones sur le document de sécurité (1).
  7. Document de sécurité (1) selon l'une quelconque des revendications précédentes, caractérisé en ce
    que la section transversale, la distance entre les au moins deux couches de matériau opaques (9, 10, 201, 202) et la rémission et/ou les propriétés de diffusion diffuses des côtés intérieurs (205) des au moins deux couches de matériau opaques (9, 10, 201, 202) sont sélectionnés de sorte que, lors d'un rétroéclairage du côté arrière (31) du corps de document (200) et l'observation simultanée du côté avant (30) du corps de document (200), seuls des agencements de motif (8) sur le côté avant (30) du corps de document (200) soient visibles et, lors d'un rétroéclairage du côté avant (31) du corps de document (200) et l'observation simultanée du côté arrière (31) du corps de document (1), seuls des agencements de motif (8') sur le côté arrière (31) du corps de document (200) soient visibles.
  8. Procédé de fabrication d'un document de sécurité,
    comprenant les étapes suivantes :
    fourniture (102) d'au moins deux couches de substrat opaques avec respectivement un côté intérieur et respectivement un côté extérieur, dans lequel les côtés intérieurs des au moins deux couches opaques sont tournés l'un vers l'autre, et dans lequel les au moins deux couches de substrat opaques présentent des passages ;
    agencement (106) de la première et de la deuxième des au moins deux couches de substrat opaques,
    stratification (107) de l'empilement de couches de substrat en un corps de document,
    dans lequel des sections transversales des passages ne sont pas réalisées symétriques en rotation dans un plan des couches de matériau respectives, dans lequel respectivement une direction longitudinale peut être associée en tant que direction préférentielle à une forme géométrique des sections transversales des passages, dans lequel la forme géométrique présente dans la direction longitudinale une extension plus grande par rapport à des extensions dans des directions transversales, et l'agencement (106) de la première et de la deuxième des au moins deux couches de substrat opaques est réalisé de sorte que les sections transversales des passages d'une des au moins deux couches de matériau opaques et les sections transversales des passages d'une deuxième des au moins deux couches de matériau opaques, au moins pour une partie des sections transversales des passages, respectivement, au moins en partie, soient agencées l'une au-dessus de l'autre par rapport à une direction d'observation repérée, caractérisé en ce qu'une pluralité de sections transversales des passages (12) de l'une des au moins deux couches de matériau opaques (9) est tournée par rapport à des sections transversales des passages (12') dans la deuxième des au moins deux couches de matériau opaques (10), de sorte que leurs directions préférentielles se coupent selon un angle.
  9. Procédé selon la revendication 8, caractérisé en ce qu'au moins une couche de substrat transparente ou translucide est fournie et l'au moins une couche de substrat transparente ou translucide est agencée entre les au moins deux couches de substrat opaques dans l'empilement de couches de substrat.
  10. Procédé selon l'une quelconque des revendications 8 ou 9, caractérisé en ce que la fourniture (102) des au moins deux couches de substrat opaques comprend en outre les étapes suivantes :
    réception (103) de motifs d'agencement pour la première et la deuxième des au moins deux couches de substrat opaques,
    aménagement (104) des passages locaux dans la première et la deuxième des au moins deux couches de substrat opaques selon les motifs d'agencement reçus.
  11. Procédé selon l'une quelconque des revendications 8 à 10, caractérisé en ce que les passages sont ménagés ou seront ménagés et/ou les couches de substrat seront orientées de sorte
    que les sections transversales des passages de la première des au moins deux couches de matériau opaques, qui chevauchent par rapport à une direction d'observation une des sections transversales des passages de la deuxième des au moins deux couches de matériau opaques, soient tournées l'une vers l'autre respectivement selon un angle dans le document de sécurité stratifié.
  12. Procédé selon l'une quelconque des revendications 8 à 11, caractérisé en ce que les passages sont réalisés ou ménagés dans au moins une des au moins deux couches de matériau opaques de sorte qu'une information de personnalisation soit formée par un motif d'agencement des passages.
  13. Procédé selon l'une quelconque des revendications 8 à 12, caractérisé en ce que les sections transversales des passages sont réalisées ou seront réalisées et une épaisseur de couche de l'au moins une couche de substrat transparente sera sélectionnée ou est sélectionnée de sorte qu'un diamètre maximum d'une section transversale des passages soit respectivement inférieur à la distance, à laquelle l'une des au moins deux couches de matériau opaques et la deuxième des au moins deux couches de matériau opaques seront agencées ou sont agencées.
  14. Procédé selon l'une quelconque des revendications 8 à 13, caractérisé en ce que les passages de la première des au moins deux couches de matériau opaques et les passages de la deuxième des au moins deux couches de matériau opaques sont ou seront agencés de sorte que, lors de l'observation du document de sécurité, au moins depuis une direction d'observation repérée lors d'un rétroéclairage, différentes valeurs de luminosité soient générées pour différentes zones sur le document de sécurité.
  15. Procédé selon l'une quelconque des revendications 8 à 14, caractérisé en ce que, lors de la fourniture des couches de matériau, la section transversale des passages, la distance entre les au moins deux couches de matériau opaques et la rémission et/ou les propriétés de diffusion diffuses des côtés intérieurs des au moins deux couches de matériau opaques sont sélectionnés ou seront sélectionnés de sorte
    que, lors d'un rétroéclairage d'un côté arrière du corps de document et l'observation simultanée d'un côté avant du corps de document, seul un agencement de motif des passages sur le côté avant du corps de document soit visible et, lors d'un rétroéclairage du côté avant du corps de document et l'observation simultanée du côté arrière du corps de document, seul un agencement de motif des passages sur le côté arrière du corps de document soit visible.
EP16735850.6A 2015-07-03 2016-07-04 Document de sécurité avec de couches de materiau micro-perforés et procédé pour sa fabrication Active EP3317113B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102015212544.0A DE102015212544A1 (de) 2015-07-03 2015-07-03 Sicherheitsdokument und Verfahren zur Herstellung eines Sicherheitsdokumentes mit mikroperforierten opaken Materialschichten
PCT/EP2016/065695 WO2017005685A1 (fr) 2015-07-03 2016-07-04 Document de sécurité pourvu de couches de matière opaques microperforées et son procédé de fabrication

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EP3317113A1 EP3317113A1 (fr) 2018-05-09
EP3317113B1 true EP3317113B1 (fr) 2019-11-20

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US10479128B2 (en) * 2017-10-27 2019-11-19 Assa Abloy Ab Security feature
DE102018127628A1 (de) * 2018-11-06 2020-05-07 Bundesdruckerei Gmbh Sicherheitselement mit einander räumlich zugeordneten Strukturelementen in verschiedenen Schichten

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EP1525100B1 (fr) * 2002-07-25 2009-06-10 Orell Füssli Sicherheitsdruck AG Document sécurisé et procédé de vérification
DE102007025860A1 (de) * 2007-06-01 2008-12-04 Ovd Kinegram Ag Sicherheitsdokument und Verfahren zu dessen Herstellung
DE102011004935A1 (de) * 2011-03-01 2012-09-06 Bundesdruckerei Gmbh Verbundkörper und Verfahren zur Herstellung eines Verbundkörpers mit einem innenliegenden Sicherheitsmerkmal
WO2013143007A1 (fr) * 2012-03-29 2013-10-03 Orell Füssli Sicherheitsdruck Ag Caractéristique de sécurité à base de perforation dans un substrat multicouche

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DE102015212544A1 (de) 2017-01-05
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