WO2014076275A1 - Document de valeur et/ou de sécurité, et élément de sécurité - Google Patents

Document de valeur et/ou de sécurité, et élément de sécurité Download PDF

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Publication number
WO2014076275A1
WO2014076275A1 PCT/EP2013/074066 EP2013074066W WO2014076275A1 WO 2014076275 A1 WO2014076275 A1 WO 2014076275A1 EP 2013074066 W EP2013074066 W EP 2013074066W WO 2014076275 A1 WO2014076275 A1 WO 2014076275A1
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WO
WIPO (PCT)
Prior art keywords
layer
light
security
wavelength range
document
Prior art date
Application number
PCT/EP2013/074066
Other languages
German (de)
English (en)
Inventor
Roland Gutmann
Michael Knebel
Alexander MOMBRÉE
Jens Ehreke
Original Assignee
Bundesdruckerei Gmbh
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Bundesdruckerei Gmbh filed Critical Bundesdruckerei Gmbh
Publication of WO2014076275A1 publication Critical patent/WO2014076275A1/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
    • B42D25/36—Identification or security features, e.g. for preventing forgery comprising special materials
    • B42D25/378—Special inks
    • B42D25/387—Special inks absorbing or reflecting ultraviolet light
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B42—BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
    • B42D—BOOKS; BOOK COVERS; LOOSE LEAVES; PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITY FEATURES; PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOT OTHERWISE PROVIDED FOR; DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDED FOR; MOVABLE-STRIP WRITING OR READING APPARATUS
    • B42D25/00—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof
    • B42D25/20—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof characterised by a particular use or purpose
    • B42D25/29—Securities; Bank notes
    • 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
    • B42D25/328—Diffraction gratings; Holograms
    • 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
    • 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
    • B42D2033/20—
    • B42D2035/36—

Definitions

  • the present invention relates to a security element having a plurality of layers, wherein a layer is formed opaque for light from the UV wavelength range, as well as a value and / or security document with such a security element.
  • Security and / or security documents such as identity cards, passports, credit and debit cards, vouchers, tickets and the like have security elements which by means of electromagnetic radiation from different wavelength ranges, eg with light from the UV wavelength range, from the IR wavelength range and / or from the wavelength range of visible light, are excitable so that they luminesce (photoluminescence). Furthermore, if necessary, the light from the said wavelength ranges is also absorbed and / or reflected by the security elements. From the document DE 10 2008 058 260 A1, a covering layer for substances is known which, in addition to the primary electroluminescence, also exhibits secondary photoluminescence.
  • the stimulating radiation for the photoluminescence in the UV wavelength range is shadowed by the covering layer with a UV blocker so far that the photoluminescence is excited only to a small extent, so that it is not readily apparent.
  • the application of such a cover layer described in this document serves to hide the electroluminescence of the security feature, which can only be detected with greater technical effort. Without a capping layer, the security feature and its exact location could be detected due to secondary photoluminescence.
  • In the field of security technology there is a constant desire to find new security elements that are difficult to falsify.
  • the rapid increase in performance in the field of information technology leads to an increased need for protection, especially of documents for the identification of persons, such as passports, identity cards or passport cards, against illegal reproduction and reproduction.
  • UV security elements that work with light from the UV wavelength range
  • commercial ink jet personalization methods are now available, which can print in addition to the standard CMYK colors and UV luminescent, so that a need for new, even safer UV safety elements exists.
  • the object of the present invention is therefore to provide a security element or a value and / or security document, which have an increased security against counterfeiting, in particular in connection with a UV luminescence.
  • the security element according to the invention consists of at least three layers, the first layer, as described above, being opaque to
  • the second layer contains first pigments which luminesce after excitation by light from the UV wavelength range, ie show photoluminescence.
  • the photoluminescence comprises both the fluorescence and the phosphorous. phoreszenz.
  • these first pigments emit light in the visible wavelength range.
  • the second layer is arranged below the first layer such that the first layer and the second layer at least partially overlap when viewed from above.
  • a third layer is arranged below the second layer which is at least partially transparent to visible light and is preferably at least partially transparent for light from the UV wavelength range.
  • the security element according to the invention has the advantage that it causes a different visual impression when illuminated from the front or the back or laterally.
  • an image represented by the second layer for example, and / or illustrated combination of numbers and / or letters is included
  • Illumination with UV light from the top is not visible, while when the lighting is done from below, the image and / or the number and / or letter combination is visible. Due to the possibility of achieving different visual effects by illumination by means of light from the UV wavelength range from different sides, it is possible to create security elements which can be tested with simple aids, namely only with a UV lamp.
  • light (electromagnetic radiation) in the visible range is light having the wavelength between 380 nm and 750 nm, electromagnetic radiation ranging between 200 nm and 380 nm as light in the UV wavelength range and electromagnetic radiation in the range between 780 nm and 3 ⁇ referred to as light in the IR wavelength range.
  • the feature that the first layer is opaque to light from the UV wavelength range means that only at most 20%, preferably at most 10%, more preferably at most 5% of the incident UV-light the first layer goes through (transmission). The remaining portion of the UV light is absorbed or reflected by the first layer. Accordingly, the feature that the first visible light layer is at least partially transparent means that at least 60%, preferably at least 80%, of the incident light passes through the first wavelength range from the visible wavelength range (transmission).
  • the statement that the third visible light layer is at least partially transparent means that at least 50%, preferably at least 70%, most preferably at least 90% of the incident light is from the visible wavelength range through the third Layer goes through. Furthermore, the statement that the third layer is at least partially transparent for light from the UV wavelength range means that at least 60% of the incident light from the UV wavelength range passes through the third layer, preferably at least 80%, particularly preferably at least 90%. of incident UV light.
  • the security element as well as the individual layers of the security element are essentially sheet-shaped or foil-like. This includes that the security element or the individual layers have a large extent in two directions, the two directions being parallel to the upper side and to the lower side of the security element or of the individual layers (ie of the blade). In contrast, the extent of the security element or the individual layers in the third direction, which is also referred to as the thickness, is comparatively small.
  • first layer and the second layer overlap at least partially when viewed from above implies that these layers lie partially over one another along a perpendicular (solder) on the top or bottom side of the security element. This means that when viewed along the vertical, the first layer covers the second layer at least partially, preferably at least 30%, particularly preferably at least 60%. Here, the first layer can completely cover the second layer.
  • the first layer is formed as a lacquer layer or a film, wherein the film preferably forms a laminate with the second layer.
  • the first layer can be produced in a particularly simple and cost-effective manner, for example in high, flat, gravure or throughprint, in particular in screen, offset, flexo or inkjet printing.
  • the first layer is either formed as a UV-absorbing layer, which covers the underlying second layer over the entire surface, or can, in particular as a lacquer layer, graphically shaped, ie part of the area, be printed on top of the second layer.
  • the uncovered portion of the underlying layer should be UV-transparent.
  • this light in the case of a lateral illumination by means of light from the UV wavelength range, this light can be coupled laterally into the second layer, wherein a partial volume of the second layer which does not contain the first pigments conducts this light.
  • the security element can be hidden particularly effectively in the value and / or security document. Namely, it is possible in this embodiment, even below the second layer to provide a further layer which is opaque to light from the UV wavelength range. Then, the first pigments of the second layer are not excitable when illuminated from both above and below. Only with a targeted lateral lighting the excitation takes place, for which purpose at least one side edge of the security element for the illumination must be accessible.
  • the security element or the UV pigments forming an image and / or alphanumeric information can be made visible, since the photoluminescence is excited only in this case. This procedure increases the security against counterfeiting considerably.
  • the security element in particular if the security element is designed such that in the case of lateral illumination by means of light from the UV wavelength range, this light can be coupled into the second layer, has a fourth layer adjacent to the second layer, preferably above or below For light from the UV wavelength range, a high refractive index.
  • a fourth layer achieves an increase in the intensity of the emission, since the fourth layer reflects the laterally incident UV light and, in the ideal case, an additional UV light. reflection on the boundary walls causes.
  • the opposite side edge of the second layer may also have a coating having a high refractive index, which may also enhance the light emitted by the first pigments due to reflection.
  • the fourth layer used can be, for example, a UV-transparent, thick core film of polycarbonate (PC) having a layer thickness of, for example, greater than 300 ⁇ m.
  • PC polycarbonate
  • the second layer additionally has second pigments which appear colored upon irradiation with light from the visible and / or IR wavelength range.
  • the second pigments reflect or emit light in the visible wavelength range within a certain range of the electromagnetic spectrum. As a result, they appear colored.
  • the emission of visible light by the second pigments can be caused, for example, by photoluminescence, which comprises fluorescence and phosphorescence.
  • the incident electromagnetic radiation can be reflected or absorbed.
  • the color addition results only in the case or in the areas where the excitation of the first pigments is not blocked by the first layer. If blocking of UV radiation occurs with respect to the first pigments, the viewer merely "sees" the color of the second pigments.
  • the thicknesses of the above-mentioned layers of the security element lie between 10 ⁇ m and 500 ⁇ m, preferably between 10 ⁇ m and 100 ⁇ m, particularly preferably between 50 ⁇ m and 100 ⁇ m.
  • base materials for such layers in principle all materials common in the ID card sector, such as e.g. PC, PET, PET-G, Petix, PE or PVC in question. Particular preference is given to using PC, PET or a PC / PET composite.
  • a value and / or security document which has a security element described above.
  • a value and / or security document has a protective layer on the upper side and / or the lower side, or a security thread and / or a hologram and / or an RFID chip module in the value and / or security document.
  • the security and / or security document is preferably an ID card in the
  • FIG. 1 a shows a first exemplary embodiment of a security and / or security document according to the invention in a perspective view from the side
  • FIG. 6a / b show a second exemplary embodiment of a value and / or security document according to the invention in an exploded view and in a perspective view from the side (FIG. 6a) or in a view from the side (FIG. 6b), FIG.
  • FIG. 7 and 8 the value and / or security document of FIG. 6 in a perspective view from above, wherein Fig. 7 shows the state when illuminated with UV light from above and Fig. 8, the illumination with UV light from below . 9 and 10 a view of the security and / or security document according to FIG. 6 in a perspective view from below, wherein in FIG. 9 the underside is illuminated by means of UV light and in FIG. 10 the upper side,
  • FIG. 11a / b show a third exemplary embodiment of a value and / or security document according to the invention in an exploded view and in a perspective view from the side (FIG. 11a) or in a view from the side (FIG. 11b) )
  • FIG. 12 to 14 the value and / or security document according to FIG. 11 in a perspective view from above, wherein the UV light in FIG. 12 from above, in FIG. 13 from below and in FIG. 14 from the side falls in,
  • Fig. 15 to 17 the value and / or security document of FIG. 1 1 in a perspective view from below, wherein Fig. 15 is a UV illumination of the underside, Fig. 16 is a UV illumination of the top and Fig. 17 is a lateral UV lighting shows
  • FIG. 18 a / b show a fourth exemplary embodiment of a value and / or security document according to the invention in an exploded view and in a perspective view from the side (FIG. 18 a) or in a view from the side (FIG. 18 b), FIG.
  • FIG. 19 and 20 the security and / or security document according to FIG. 18 in a perspective view from above, the UV light being incident from above in FIG. 19 and from below in FIG. 20, FIG. 21 and 22, the value and / or security document according to FIG. 18 in a perspective view from below, wherein the UV illumination in FIG. 21 from below and in FIG. 22 from above, Fig. 23a / b a fifth Embodiment of a value and / or security document according to the invention in an exploded view and in a perspective view from the side (Fig. 23a) or in a view from the side (Fig. 23b), Fig. 24 to 26 the value and / or Security document according to FIG. 23 in a perspective view from above, wherein the illumination with UV light takes place laterally in FIG.
  • FIG. 27 to 29 the value and / or or security document according to FIG. 23 in a perspective view from below, wherein the UV illumination in FIG. 27 is from below, in FIG. 28 from above and in FIG. 29 from the side, and FIG. 30 the transparency of polycarbonate in FIG % (Thickness 4 mm) in
  • the value and / or security document 10 illustrated in FIG. 1, which forms an ID card, is composed of a total of seven layers, wherein a protective film 1, preferably with a layer thickness of 50 ⁇ m, comprises a printing and / or carrier layer 2 for internal components such as security threads, holograms and / or personal data, which preferably has a layer thickness in the range of 50 ⁇ to 100 ⁇ , and a layer 3, preferably with a layer thickness of 100 ⁇ , for the security low pressure and / or provided as a cover layer for an inlay.
  • a protective film 1 preferably with a layer thickness of 50 ⁇ m
  • a printing and / or carrier layer 2 for internal components such as security threads, holograms and / or personal data, which preferably has a layer thickness in the range of 50 ⁇ to 100 ⁇ , and a layer 3, preferably with a layer thickness of 100 ⁇ , for the security low pressure and / or provided as a cover layer for an inlay.
  • a layer 4 which represents a buffer layer with a layer thickness between 200 ⁇ and 400 ⁇ and to achieve the necessary card thickness and / or for receiving an inlay, for example in the form of a RFID chip module, optionally with antenna in the case of contactless smart cards used.
  • the buffer layer 4 is followed by a layer 5 for the safety negative pressure and / or as a cover layer for an inlay, which is constructed analogously to layer 3.
  • a pressure and / or carrier layer 6 is arranged for internal components with the same structure and the same objective as layer 3.
  • a protective film 7 is provided at the very bottom, which analogously to the protective film 1 has a layer thickness of preferably 50 ⁇ .
  • a printed UV blocking layer 8 Arranged on the carrier layer 2 is a printed UV blocking layer 8, which represents a layer which is opaque in the UV wavelength range and has a transmission in this wavelength range of at most 20%, preferably of at most 10%.
  • the UV barrier layer 8 is not visible in daylight and preferably consists of commercial UV barrier lacquer (also UV protective lacquer for the car / boat or wood protection area) with a layer thickness> 1 ⁇ . Further, reference is made to the materials mentioned in the general description part.
  • the UV barrier layer 8 covers the printing and / or backing layer 2 only partially, it has a wavy line-shaped structure.
  • the UV barrier layer 8 is transparent to visible light.
  • the further layers 1, 2, 3, 4, 5, 6 and 7 of the ID card 10 are transparent to visible light and consist of polycarbonate (PC).
  • a printing layer 9 is also arranged, which, for example, as shown in Figure 2, forms a strip grid.
  • the print layer 9 contains first pigments which can be excited with light from the UV wavelength range and then exhibit photoluminescence in the visible wavelength range, in particular in the blue wavelength range.
  • the printing layer 9 contains second pigments which emit or reflect visible light, for example light in the green (visible) spectral range, upon irradiation with light from the visible wavelength range or the IR wavelength range.
  • the first pigments UV fluorescent pigments of security pigment manufacturers can be used, the thickness of the print layer 9 is preferably in the range of 1 ⁇ to 30 ⁇ .
  • UV barrier layer 8 and / or the printing layer 9 may embody other shapes, images and / or alphanumeric characters.
  • the result is a total of two-color fringe pattern which, for example in the region 13, ie in the region of the UV blocking layer 9, appears green and in the region 14, ie in the region in which a UV blocking layer is not present, blue. If a viewer now looks at and illuminates the rear side 12 of the ID card 10, the viewer also sees the stripe pattern of the print image 9, but in an overall blue color due to color addition of the colors of the first and second pigments, since the incident UV on this side Light is not blocked.
  • the present invention can provide a variety of visual impressions, which impressions may vary depending on which side the ID card 10 is viewed from and on which side the electromagnetic radiation from the UV wavelength range is incident.
  • FIG. 6 to 10 The illustrated in Figures 6 to 10 second embodiment of an inventive value and / or security document in the form of an ID card 20 is constructed in principle analogous to the first embodiment shown in Figures 1 to 5.
  • a print layer 29 is arranged, which is formed as three adjacent rectangles.
  • a protective layer 24 is provided above the UV barrier layer 28, which is formed over the entire surface unlike in the first embodiment.
  • Another protective layer 24 is disposed on the underside of the multi-layer ID card 20.
  • Between the printing layer 29 and the lower protective layer 24 further layers 25 are provided.
  • the UV barrier layer 28 blocks the UV radiation. If, however, the ID card 20 is illuminated from the rear side with the UV lamp 27, then the viewer recognizes the image represented by the printing layer 29 (see Fig. 8), since between the bottom 22 and the print layer 29 is not arranged a UV blocking layer and also the remaining layers 24, 25 do not absorb the light from the UV wavelength range. Accordingly, the observer recognizes the underside (back) 22 of the printed image 29 when the bottom 22 is illuminated by the UV lamp 27 (see Figure 9).
  • a UV blocking layer 38a arranged above a printing layer 39 in the form of three rectangles with UV pigments is also below this printing layer 39 UV barrier 38b provided. Between the printing layer 39 and the lower UV barrier layer 38b are four further layers 35, which are transparent at least for visible and UV light.
  • the UV barrier layers 38a and 38b are formed over the entire surface and extend over the entire length and width of the ID card 30.
  • a protective layer 34 and on the underside of the layer composite a further protective layer 34 is arranged.
  • FIGS. 12 to 14 illustrate the situation in which a user views the upper side (front side) 31.
  • the upper side 21 is illuminated by means of the UV lamp 27, the light from the UV wavelength range is blocked by the upper UV barrier layer 38a. The user therefore can not see the image represented by the print layer 39 (see Fig. 12).
  • the UV lamp 27 is illuminated from below, the image of the printed layer 39 can likewise not be seen, since the lower UV barrier layer 38b displays the electromagnetic radiation.
  • the UV light is coupled laterally into the printing layer 39 by means of the UV lamp 27, as shown in FIG. 14, the UV pigments in the printing layer 39 can be excited, since the UV light is not blocked from this side.
  • the printed image represented by the printing layer 39 is correspondingly visible. This is possible in particular because the further layer 35 arranged directly beneath the printing layer 39 is transparent to UV light.
  • the UV light of the UV lamp 27 incident on the side of the document is transferred to the printing layer 39 via the further layer 35 arranged below the printing layer 39. This effect is enhanced when the further layer 35 arranged under the printing layer 39 has a comparatively large thickness.
  • Fig. 16 corresponds to the arrangement shown in Figure 12, wherein also from the bottom 32, the UV printed image 39 is not visible.
  • the image of the print layer 39 is also visible from the underside 32 in the case of lateral illumination by means of a UV lamp 27, as shown in FIG. 17.
  • the fourth exemplary embodiment of a value and / or security document according to the invention in the form of an ID card 20 'shown in FIGS. 18 to 22 is designed substantially analogously to the second exemplary embodiment illustrated in FIGS. 6 to 10.
  • Only the UV barrier layer is formed in the fourth embodiment as a partial UV barrier layer 28 ', which covers only two rectangles of the print layer 29.
  • the UV barrier layer 28 'therefore overlaps the print layer 29 only partially. Accordingly, the incident UV light from the UV lamp 27, as shown in FIGS. 19 and 22, is also absorbed only in a partial region of the printing layer 29 and the luminescence is prevented only in two rectangles.
  • FIGS. 20 and 21 correspond to the arrangements shown in FIGS. 8 and 9.
  • FIGS. 23 to 29 A fifth exemplary embodiment of a value and / or security document according to the invention is shown in FIGS. 23 to 29.
  • This exemplary embodiment substantially corresponds to the third exemplary embodiment illustrated in FIGS. 11 to 17, wherein in the fifth exemplary embodiment the upper UV barrier layer 38a 'only partially overlaps the underlying pressure layer 39.
  • the further layer 35 additionally contains a printed standard passport photo 36 printed with printing inks visible in visible light. As a result, the light image level is additionally secured.
  • FIGS. 24, 25, 27 and 28 that, in contrast to the third embodiment, due to the partial overlapping of the UV barrier layers 38a 'and 38b' with the print layer 39, these partially, ie one of the three rectangles, in the case of a UV Illumination from above (see FIGS. 24 and 28) and visible from below when UV illumination (see FIGS. 25 and 27).
  • the visible rectangle of the print layer 39 overlaps with the printed passport photo 36 in all cases.
  • the ID card 30 ' is illuminated laterally by the UV lamp 27, the entire print layer 39 can be excited with all three rectangles analogously to the third embodiment ( see Fig. 26 and 29). Again, the visible light emitted from the print layer 39 overlaps with the printed passport photo 36.
  • the invention can be used very widely and makes it possible to realize hard-to-falsify security elements that show different appearances, especially when viewed and / or illuminated from different sides of the security and value-added documents.
  • top and bottom were of course chosen arbitrarily, but the figures adapted.
  • the characteristics of the value and / or security documents shown above can be reconstructed in any other orientation of the value and / or security document.
  • the top (front) of the bottom (back) is opposite and the top and bottom respectively include the sides of the security and / or security document, which have the largest area.
  • side surfaces are those surfaces which extend transversely to the upper and lower side.
  • the layer containing the UV pigments was called a printing layer.
  • This layer can be applied by means of common printing processes. However, other methods may be used.
  • the first layer may be formed with the UV pigments as a film and laminated with the remaining layers. The same applies to the UV barrier layer (second layer).
  • the above-mentioned UV barrier layers 8, 28, 28 ', 38a, 38a', 38b, 38b ' are preferably made of polycarbonate, which is also known per se as a UV curing agent.
  • Blocker for short-wave UV-B and UV-C radiation can be considered.
  • the translucency (in%) of polycarbonate is indicated in Fig. 30 as a function of wavelength (in nm) for a 4 mm thick plate (quote from Becker, Gerhard W., Braun, Dietrich, 1992, p. 196).
  • UV-A To block the longer-wave UV radiation (UV-A) further additives can be added or printed.
  • ZnO (IBU tec) or ⁇ 2 are used in particular as UV absorbers.
  • Offset or letter set inks are usually used for the print layers. Depending on the available drying process, the colors are oxidative or UV-drying. Furthermore, the inks for setting the printability contain additives such as binders, oils and / or resins. The composition of the printing inks must be specially adapted for each product.
  • the transmission of the transparent layers can be determined, for example, according to the standard ISO 13468-2 (1999).

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Business, Economics & Management (AREA)
  • Accounting & Taxation (AREA)
  • Finance (AREA)
  • Credit Cards Or The Like (AREA)
  • Inspection Of Paper Currency And Valuable Securities (AREA)

Abstract

La présente invention concerne un élément de sécurité pour document de valeur et/ou de sécurité, comprenant une première couche (8, 28, 28', 38a, 38a', 38b, 38b') et au moins une deuxième couche (9, 29, 39), la première couche étant opaque à la lumière de la plage de longueurs d'ondes UV et étant, en plus, au moins partiellement transparente à la lumière visible, la deuxième couche contenant des premiers pigments qui, après excitation par la lumière de la plage de longueurs d'ondes UV, deviennent fluorescents, et qui sont disposés sous la première couche de manière que la première couche et la deuxième couche se chevauchent au moins en partie lorsque l'observation se fait par le haut. Pour créer un nouvel élément de sécurité de protection accrue contre la falsification, une troisième couche (2, 3, 4, 5, 6, 7, 24, 25, 34, 35) est disposée sous la deuxième couche, cette troisième couche étant partiellement transparente à la lumière visible et de préférence étant, en plus, au moins partiellement transparente à la lumière de la plage de longueurs d'ondes UV. L'invention concerne également un document de valeur et/ou de sécurité.
PCT/EP2013/074066 2012-11-19 2013-11-18 Document de valeur et/ou de sécurité, et élément de sécurité WO2014076275A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102012111113.8 2012-11-19
DE102012111113.8A DE102012111113B4 (de) 2012-11-19 2012-11-19 Wert- und/oder Sicherheitsdokument sowie Sicherheitselement hierfür

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WO2014076275A1 true WO2014076275A1 (fr) 2014-05-22

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WO (1) WO2014076275A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3088202A3 (fr) * 2015-04-28 2017-04-12 Giesecke & Devrient GmbH Substrat de document de valeur, feuille de laminage et document de valeur
EP3418067A1 (fr) * 2017-06-19 2018-12-26 Giesecke+Devrient Mobile Security GmbH Personnalisation fluorescente à l'aide du laser
WO2019081984A3 (fr) * 2017-10-27 2019-06-27 Assa Abloy Ab Élément de sécurité

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