EP1523415B1 - Caracteristique de securite destinee a des documents de valeur - Google Patents

Caracteristique de securite destinee a des documents de valeur Download PDF

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Publication number
EP1523415B1
EP1523415B1 EP03702269A EP03702269A EP1523415B1 EP 1523415 B1 EP1523415 B1 EP 1523415B1 EP 03702269 A EP03702269 A EP 03702269A EP 03702269 A EP03702269 A EP 03702269A EP 1523415 B1 EP1523415 B1 EP 1523415B1
Authority
EP
European Patent Office
Prior art keywords
security feature
substrate
security
polarization
polarization film
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.)
Expired - Lifetime
Application number
EP03702269A
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German (de)
English (en)
Other versions
EP1523415A1 (fr
Inventor
Jakob Grob
Klaus Franken
Paul Smith
Andreas Seyffert
Christoph Kocher
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.)
Landqart AG
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Landqart AG
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Filing date
Publication date
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Publication of EP1523415A1 publication Critical patent/EP1523415A1/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
    • 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
    • B42D25/20—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
    • B42D25/36—Identification or security features, e.g. for preventing forgery comprising special materials
    • B42D25/378—Special inks
    • B42D25/382—Special inks absorbing or reflecting infrared 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
    • 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
    • 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
    • B42D25/391—Special inks absorbing or reflecting polarised light

Definitions

  • the present invention relates to a security feature for a security document in which the authenticity can be determined by irradiation of electromagnetic radiation in a spectral range outside the visible range.
  • the WO 00/19016 relevant, describing soft security features with dichroic properties.
  • the security features are applied to a security paper and show either linearly polarized photoluminescence or linearly polarized absorption.
  • the invention is therefore based on the object of providing an alternative security feature for a security document in which the authenticity can be determined by irradiation of electromagnetic radiation in a spectral range outside the visible range.
  • the security feature has a pressure or a coating or more generally a function that converts the radiated electromagnetic radiation into visible light, wherein the pressure resp. the coating or the function is at least indirectly covered by a polarizing film.
  • Function means that also e.g. the carrier on which the security feature is applied can itself take over the function of converting the irradiated electromagnetic radiation into visible light.
  • the core of the invention is therefore to provide on the one hand a feature available, which can not be recognized by the eye when viewed under exclusively visible light, but which suddenly emerges when exposed to UV light or IR light (see above) called photoluminescence).
  • UV light In the case of irradiation with UV light is a so-called Stokes process in which high-energy electromagnetic radiation (UV) is converted into low-energy electromagnetic radiation (visible light, VIS).
  • VIS visible light
  • anti-Stokes process in which electromagnetic radiation of low energy (IR) is converted into electromagnetic radiation of higher energy (VIS).
  • polarization is utilized at the same time. This, by a z. B. fluorescent coating or a z. B.
  • fluorescent printing is covered with a polarizing film.
  • the printing can be easily applied and, if necessary, even adapted to the document (eg press register).
  • a sandwich structure is thus used in a very simple manner, which on the viewing side, a Polarisatiousfolie above the coating, respectively. the printing resp. of the carrier, which converts the irradiated electromagnetic radiation into visible light.
  • the security feature is a shaped, planar object which can identify a variety of forms, eg. B., but not only, tape, disk, disk, sheet, etc ..
  • chemical functions are incorporated into this carrier, which convert the irradiated electromagnetic radiation into visible light.
  • These chemical functions are preferably fluorescent and / or phosphorescent dyes incorporated in the support. These can either be incorporated simply in the carrier or else in the form of fibers dyed with these dyes which are incorporated in the carrier.
  • the irradiated electromagnetic radiation is UV radiation.
  • the irradiation may take place in a wavelength range of 200 to 500 nm or even in a range of 180 to 500 nm.
  • an irradiation in the range of 200 to 400 nm or 300 to 400 nm.
  • the print at least one fluorescent and / or phosphorescent dye containing at least partially converts the UV radiation into visible light.
  • the printing may in particular preferably be a logo, a pattern, or a lettering or a combination of these elements.
  • the verification of such a security feature can be effected by irradiating either linearly polarized UV light, the polarization direction of this UV light rotating (eg by a rotating polarizer immediately in front of the UV light source is set).
  • the fluorescent signs under the polarizing filter then appear and disappear in interplay. In other words, it turns out to be a light-spelled or on / off effect. This effect is very clear and allows a safe verification, on the other hand, this effect can be copied only with great effort.
  • polarizing filters are of interest, in which the absorption is limited essentially to the wavelength range of the irradiated excitation radiation and which is substantially in the visible range, i. typically in a range of 400-800 nm, have no absorption and therefore appear colorless.
  • Polarizing filter with these properties allow the described effect in the context of the present invention, but without disturbing a possibly present visible printed image.
  • the printing preferably contains at least one photoluminescent dye and / or one photoluminescent pigment or a combination of such components. These may be dyes such. 13. Pergasol Flavin 7G, Pergasol Yellow GA, etc., but also optical brighteners such. Blankophor, Uvitex OB-One etc. can be used. Also on metal ions or metals generally based components come into question. Of course, the effect can be further improved by using different areas of different colors.
  • the polarizing film preferably has a thickness of in the range of 5 to 200 .mu.m, more preferably of 10 to 75 .mu.m.
  • the polarizing film should preferably have a dichroic ratio of in the range of at least 3, in particular preferably of at least 5, so that the light / dark effect mentioned at the outset also emerges well.
  • the polarizing film may also be a so-called photoluminescent polarizer in the sense of z. BM Eglin et al., "Ultra-high performance photoluminescent polarizers based on melt-processed polymer blends," J. Mater. Chem. 1999, vol. 9, p. 2221 , act.
  • Another preferred embodiment of the present invention is characterized in that the security feature has juxtaposed regions of polarization film with different polarization direction. So occur when viewed under z. B. a rotating polarization filter the printed characters behind these different areas also in different periods, which produces a very interesting flick-flare effect.
  • the polarization directions of adjoining areas can be particularly preferably orthogonal to one another, but it is also possible to obtain a moving subject as viewed under a rotating polarization filter by using several strips with successively changing polarization direction.
  • a further preferred Ausrtihrungsform of the present invention is characterized in that the security feature is applied to a substrate, wherein the pressure is at least indirectly printed on the substrate, and the Polarizing film is connected via a bonding agent on this print.
  • This embodiment proves to be particularly easy to manufacture, since the carrier material must be simply provided in a standard method with a photoluminescent printing, and then z.
  • B. a provided with a pressure-sensitive adhesive (hot or cold) polarizing film (to some extent in the sense of a Scotch tape) must be adhered to this printing area.
  • the photoluminescent printing is applied to the polarizing film. It is characterized in that the security feature is applied to a carrier material, wherein the pressure on the side facing the carrier material of the polarizing film is arranged, and wherein the polarizing film is applied to the pressure-facing side via a coupling agent on the carrier material, optionally a film is arranged between print and adhesion promoter.
  • a photoluminescent printing and coated with a pressure-sensitive adhesive polarizing film are simply applied to the carrier material.
  • the adhesion promoter is preferably a glue, paste, lacquer, dispersion adhesive, solvent adhesive, reaction adhesive or a contact adhesive which has an adhesion sufficient for the intended use of the security document.
  • the adhesion promoter should be ensured that the adhesion promoter has no absorption properties in the spectral regions used (eg UV and VIS), since otherwise the effect is diminished ,
  • the security feature may have a structure in which at least one. Printing layer is covered on both sides of a polarizing film, wherein the two Potarisationsfolien may have the same or different polarization direction.
  • Another embodiment of the present invention is characterized in that, in addition, the polarizing film is also provided with a fluorescent printing on the other, uppermost surface.
  • this fluorescent pressure is not behind the polarizing film, and accordingly this pressure remains independent of the position of a z. B. always used in the observation used rotating polarizing filter. This can lead to interesting contrast effects with the periodically incoming / outgoing signals of the arranged behind the Polarisalionsfolie printing.
  • the present invention relates to a security document containing a security feature as described above.
  • This may be a banknote, a security, a ticket, a packaging material, etc., or even a credit card, bank card, etc.
  • the present invention relates to a method for producing a security document, as mentioned in the preceding paragraph.
  • the fluorescent printing in particular in the form of a logo, pattern, or lettering, is preferably applied to a carrier material first, and then a polarizing film provided with an adhesion promoter is adhered to the printed area.
  • a method for adjusting such a security document is proposed which is characterized in that a security feature already provided with a fluorescent print arranged between adhesion promoter and polarization film is adhered to a carrier material.
  • the present invention also relates to a method for verifying a security feature as described above or a security document as mentioned above.
  • the method for verification is characterized in that either linearly polarized UV light is irradiated, the polarization direction of which is rotated, or that unpolarized UV light is irradiated, and the observation in the visible range is effected by a rotating polarization filter.
  • the observation can take place either on the side in the incident light of the security document, from which the irradiation occurs, or it can be an observation in transmittance (transmission).
  • Fig. 1 shows a first embodiment of the present invention. It is a section through a security document.
  • the security document has a carrier 1.
  • the carrier 1 can be a paper or a plastic film or else a mixed form thereof, or a plastic disk (cf., for example, a credit card).
  • the carrier itself contains a fluorescent dye or a fluorescent pigment in this embodiment.
  • this fluorescent dye / pigment can be easily added to a paper support in the papermaking process.
  • Suitable dyes are the common fluorescent dyes or fluorescent pigments in question, the dyes may be inorganic or organic nature, and may also contain metals or metal ions. In carrying come for example z.
  • a bonding agent 3 Between carrier and polarizing film is a bonding agent 3, which ensures a firm connection between the substrate 1 and polarizing film 2.
  • the adhesion promoter used should have no significant absorption in any of the relevant spectral regions.
  • the polarizing film 2 has a thickness of 10 to 30 microns. you Polarisal degree is about 18. It is also possible a dichroic ratio of about 5 or higher.
  • Such polarization filters can, for. B. at the companies Sumitomo or Polaroid, or can be prepared by a standard polymer stretching method.
  • the polarization filter in the relevant spectral ranges actually has a polarizing effect, namely z. B. when exposed to UV light possible both in the UV range and in the visible range.
  • Fig. 1b shows a further embodiment in which a photoluminescent pressure 4 is applied to the carrier 1.
  • This print may be applied in a standard printing process such as ink jet, gravure, offset printing, etc., and may be typefaces, images, logos, patterns, or combinations of such elements, and different colors may be used side by side , Above the pressure 4 is initially
  • Such a security feature can be made by after the printing with the layer respectively the pressure 4 z. B. from a roll already provided with the bonding agent 3 polarizing film 2 is dispensed.
  • the adhesion promoter is a contact adhesive, this can be done, for example, by Example, using a laminate, in which polarizing film and adhesion promoter are covered with a release film, and this release film is separated just before dispensing of the polarizing film such that the bonding agent 3 remains on the polarizing film 2
  • Fig. 2a Another embodiment is in Fig. 2a ).
  • the pressure is not 4 between primer 3 and substrate 1, but rather between primer 3 and polarizing film 2.
  • Such a security feature can, for. B. filedet on a blank substrate 1, but then the donor material already contains the fluorescent pressure 4 between 3 adhesion promoter and polarizing film 2.
  • Fig. 2b it is possible, in order to prevent the pressure 4 from coming into direct contact with the adhesion promoter 3, to arrange a film 5 between these two layers.
  • the security feature is incorporated into the carrier material 1 to some extent.
  • the carrier material 1 has a hole in the area of the security feature.
  • the security feature has the same thickness as the substrate.
  • the security feature is limited to the top by an upper polarizing film 6, and immediately below this upper polarizing film 6, an upper fluorescent printing layer 8 is arranged.
  • This release film can be either transparent or opaque.
  • a lower fluorescent printing layer 9 follows, and the security feature is closed at the bottom by a lower polarizing film 7.
  • the release film 10 is designed to be transparent, it is also possible to see through in a transparent manner.
  • Fig. 3b shows an embodiment in which again the security feature in the substrate 1 is arranged in a window of this substrate.
  • only one fluorescent printing layer 4 is arranged between two polarizing films 6 and 7. Is here z.
  • the security feature appears as a transparent window under normal conditions. If it is, however, with z.
  • the security feature also appears substantially the same when viewed in phantom (UV light source on one side, viewing from the other side), as if irradiation and viewing from the same side respectively. If the two polarizing film 6 and 7 but z. B. arranged orthogonally, the window will simply appear dark when viewed in phantom, since two orthogonal polarizers arranged to pass no light. The pressure 4 will not be visible when the dye in the visible range shows a polarized emission which parallel to Polarization direction of the irradiation takes place.
  • the dye polarized irradiation (the radiation is always polarized because of the polarizing film arranged above it) unpolarized emission in the visible range, that is even with crossed polarizing films in such a view, the pressure, although possibly weakened visible.
  • FIG. 3c An even more complex embodiment is in Fig. 3c ). Essentially, this is an embodiment gem. Fig. 3b ) but in addition aussenscitig on the two polarizing films 6 and 7 each have a further fluorescent pressure 12 is arranged.
  • This pressure 12 when observed and irradiated from the same side of the substrate 1, will show no light / dark or on / off effect, since the respective polarizing filter is not disposed above it. However, if such a security feature is viewed in phantom, then these prints 12, if arranged on the side facing away from the observer, will show the on / off effect, provided that the two polarizing films 6 and 7 are arranged in parallel.
  • Fig. 4 shows the method for verification of such a security feature, wherein is irradiated with linearly polarized UV light 13.
  • the polarized UV light 13 has a polarization direction, which is shown by the arrow 14.
  • the security document in turn has a carrier material 1, on which a fluorescent printing 4 is arranged behind a polarizing film 2.
  • the polarization direction of the polarizing film 2 is indicated by the arrow 17.
  • a visibility of the printing 4 in the visible range, as indicated by the arrow 15 in the viewer 16 results.
  • Fig. 5 shows an alternative method of verification of the security feature.
  • This is unpolarized UV light 18, which is irradiated.
  • the UV light is linearly polarized when passing through the Polarisalionsfolie 2, hits the printing 4, where it is converted into visible light, and emerges in the direction of the viewer, wherein it has a polarization direction which is parallel to the polarization direction of the polarizing film 2.
  • the observer 16 now considers this signal with the aid of a polarization filter 19, and if this polarization filter 19 is aligned with its polarization direction 20 parallel to the polarization direction 17 of the polarization film 2, the observer will perceive the lettering (situation in FIG Fig. 5a ). If, however, the polarization direction 20 of the polarization filter 19 and the polarization direction 17 of the polarization film 2 are arranged orthogonally, the viewer will see no signal of the lettering 4 (situation Fig. 5b ).
  • Fig. 6 shows an embodiment analogous to that in Fig. 5 illustrated, but here the polarizing film 2 has regions 2a and 2b, which have different polarization directions 17a and 17b.
  • a pressure 4 arranged behind this polarization film 2 will appear, depending on the relative arrangement of the polarization direction 17a or 17b of the region 2a or 2b and the polarization direction 20 of the polarization filter 19.
  • the two polarization directions 17a and 17b are arranged orthogonal to each other, a lettering will either be either just disappeared or just be visible, ie a part of the lettering will always be visible, the lettering possibly in the arrangement of Polarization directions 17 and 20 in the range of 45 degrees as a whole could also be easily visible.
  • the present invention can be applied in particular in the field of banknotes or the like.
  • a section through a laminated mottled fiber 22 serves as a fluorescent substrate, so to speak, the actual core 24 of the mottled fiber, which, for example, from a plastic or can also be made of Lyocell or a natural fiber.
  • the core 24 is soaked, for example, in a dye which is capable of converting the desired conversion of light outside the visible range to light within the visible range.
  • the dye can be added, for example, when using a polymeric material before or after melting prior to the extrusion process, but it is also possible to introduce the color after shaping.
  • This core 24 is to a certain extent a polarizing film 23, more in the sense of a sheath, arranged.
  • This enveloping polarizing film 23 can be produced, for example, together with the core 24 in a coextrusion process, after which the multilayered fiber has to be stretched after this coextrusion process so that the layer 23 actually exhibits the desired polarizing effect.
  • the thus prepared polarizing film shows substantially no absorption above 400 nm, i. H. in the visible spectrum it shows almost no absorption. Accordingly, such a film appears transparent and colorless in the visible range
  • the polarization film thus produced shows substantially no absorption at wavelengths above 500 nm. Accordingly, it appears transparent with a slight yellow tinge.
  • a mixture of 2.53 g (18.2 mmol) p -nitrophenol and 2.5 mL H 2 O was heated to 120 ° C and treated with 11.3 g (45.0 mmol) of KOH.
  • the mixture was heated to 220 ° C over a period of 30 minutes, whereupon a high viscosity, dark brown mixture formed with bubbling.
  • the mixture was held at 220 ° C for a further 30 minutes until gas evolution subsided.
  • the mixture was cooled to room temperature, dissolved in 150 mL H 2 O and treated with conc. HCl acidified to pH 4.
  • the reaction products were extracted with dimethyl ether (3x 100 mL) and the combined organic phases were dried over MgSO 4 , filtered, and the solvent spun off.
  • This film shows essentially no absorption above 420 nm. It appears transparent and colorless in the visible area.
  • films showed an absorption maximum around 365 nm with a dichroic ratio of 6.5.
  • Films based on polyethylene terephthalate (PET) at 0.2% w / w of the dye were prepared by the same method at 280 ° C and stretched to a draw ratio of 4 at 180 ° C. These films showed an absorption maximum around 346 nm with a dichroic ratio of 19.
  • This polarizing film shows no absorption above 400 nm and accordingly appears transparent and colorless in the visible range.
  • This polarizing film likewise shows essentially no absorption above 400 nm and appears transparent and colorless in the visible range.

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  • Engineering & Computer Science (AREA)
  • Business, Economics & Management (AREA)
  • Electromagnetism (AREA)
  • General Health & Medical Sciences (AREA)
  • Optics & Photonics (AREA)
  • Toxicology (AREA)
  • Health & Medical Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Physics & Mathematics (AREA)
  • Accounting & Taxation (AREA)
  • Finance (AREA)
  • Credit Cards Or The Like (AREA)
  • Polarising Elements (AREA)
  • Inspection Of Paper Currency And Valuable Securities (AREA)
  • Printing Methods (AREA)

Claims (22)

  1. Caractéristique de sécurité pour un document de sécurité avec laquelle l'authenticité peut être déterminée par irradiation d'un rayonnement électromagnétique (13, 18) dans une plage spectrale en dehors de la plage visible,
    caractérisée en ce que
    la caractéristique de sécurité présente une impression (4, 8, 9) et/ou un support (1, 24) et/ou un revêtement qui convertit le rayonnement électromagnétique (13, 18) irradié en lumière visible (15, 21), l'impression (4, 8, 9), le support (1) ou le revêtement étant au moins indirectement recouvert(e) par un film polarisant (2, 6, 7, 23) .
  2. Caractéristique de sécurité selon la revendication 1, caractérisée en ce que la caractéristique de sécurité présente un support (1, 24) dans lequel sont intégrées des fonctions chimiques qui convertissent le rayonnement électromagnétique (13, 18) irradié en lumière visible (15, 21), ces fonctions chimiques étant de préférence des colorants fluorescents et/ou phosphorescents intégrés dans le support (1, 24) et celles-ci se présentant notamment de préférence sous la forme de fibres teintes avec ces colorants et qui sont incluses dans le support (1, 24).
  3. Caractéristique de sécurité selon l'une des revendications précédentes, caractérisée en ce que le rayonnement électromagnétique (13, 18) irradié est un rayonnement UV et que l'impression (4, 8, 9), le support (1, 24) et/ou le revêtement contiennent au moins un colorant et/ou un pigment fluorescent et/ou phosphorescent qui convertit au moins partiellement le rayonnement UV en lumière visible, l'impression (4, 8, 9) étant notamment de préférence un logo, un motif ou une inscription ou encore un combinaison de ces éléments.
  4. Caractéristique de sécurité selon l'une des revendications précédentes, caractérisée en ce que le film polarisant (2, 6, 7, 23) est pour l'essentiel incolore et transparent dans la plage visible, c'est-à-dire notamment dans la plage entre 400 et 800 nm.
  5. Caractéristique de sécurité selon l'une des revendications précédentes, caractérisée en ce que l'impression (4, 8, 9) et/ou le support (1, 24) et/ou le revêtement contiennent au moins un colorant photoluminescent ou une combinaison de colorants de ce type.
  6. Caractéristique de sécurité selon l'une des revendications précédentes, caractérisée en ce que le film polarisant (2, 6, 7, 23) présente une épaisseur dans la plage de 5 à 200 µm, notamment de 10 à 75 µm, et/ou un rapport dichroïque dans la plage des valeurs supérieures à 3, notamment de préférence supérieures à 5 ou même à 7.
  7. Caractéristique de sécurité selon l'une des revendications précédentes, caractérisée en ce que le film polarisant (2, 6, 7, 23) est un film polarisant (2, 6, 7, 23) photoluminescent, la couleur d'émission du film polarisant (2, 6, 7, 23) photoluminescent étant de préférence différente de la couleur d'émission du colorant photoluminescent ou de la combinaison de colorants de ce type, de l'impression (4, 8, 9) et/ou du support (1, 24) et/ou du revêtement.
  8. Caractéristique de sécurité selon l'une des revendications précédentes, caractérisée en ce que la caractéristique de sécurité dispose de zones (2a, 2b) de film polarisant ayant des sens de polarisation (17a, 17b) différents et disposées immédiatement l'une à côté de l'autre, les sens de polarisation (17a, 17b) des zones limitrophes (2a, 2b) étant notamment de préférence orthogonaux l'un à l'autre.
  9. Caractéristique de sécurité selon l'une des revendications précédentes, caractérisée en ce qu'elle est appliquée sur un matériau porteur (1), l'impression (4) étant au moins indirectement imprimée sur le matériau porteur (1) et le film polarisant (2) étant fixé sur cette impression (4) par le biais d'un agent adhésif (3).
  10. Caractéristique de sécurité selon l'une des revendications précédentes, caractérisée en ce qu'une impression photoluminescente est appliquée sur le film polarisant.
  11. Caractéristique de sécurité selon l'une des revendications 1 à 8 ou 10, caractérisée en ce qu'elle est appliquée sur un matériau porteur (1), l'impression (4) étant disposée sur le côté du film polarisant (2) qui fait face au matériau porteur (1) et le côté du film polarisant (2) qui fait face à l'impression (4) étant appliqué sur le matériau porteur (1) par le biais d'un agent adhésif (3), un film (5) étant éventuellement disposé entre l'impression (4) et l'agent adhésif (3).
  12. Caractéristique de sécurité selon l'une des revendications 9 ou 11, caractérisée en ce que l'agent adhésif (3) est une colle, un amidon, un vernis, une colle à dispersion, une colle à solvant, une colle à réaction ou une colle par contact qui présente une adhérence suffisante pour une utilisation du document de sécurité conformément à sa destination.
  13. Caractéristique de sécurité selon l'une des revendications 1 à 8, caractérisée en ce qu'elle est disposée dans un matériau porteur (1) de telle sorte qu'elle peut être vérifiée des deux côtés du matériau porteur (1) et/ou par transparence.
  14. Caractéristique de sécurité selon la revendication 13, caractérisée en ce qu'elle présente une structure dans laquelle au moins une couche imprimée (4, 8, 9) est recouverte des deux côtés par un film polarisant (6, 7), les deux films polarisants (6, 7) pouvant présenter des sens de polarisation identiques ou différents.
  15. Caractéristique de sécurité selon la revendication 13, caractérisée en ce qu'il existe deux couches imprimées (8, 9) qui sont séparées par un film de séparation (10).
  16. Caractéristique de sécurité selon l'une des revendications précédentes, caractérisée en ce que le film polarisant (2, 6, 7) est recouvert d'un film protecteur (11) du côté à l'opposé du matériau porteur (1) .
  17. Caractéristique de sécurité selon l'une des revendications précédentes, caractérisée en ce que le film polarisant (2, 6, 7) est également muni d'une impression fluorescente (12) sur l'autre surface.
  18. Caractéristique de sécurité selon l'une des revendications précédentes, caractérisée en ce que le support (24) est une fibre ayant une longueur dans la plage de 1 à 20 mm, notamment de préférence en une matière plastique, et que le film polarisant (23) enrobe ce support (24).
  19. Document de sécurité comprenant une caractéristique de sécurité selon l'une des revendications 1 à 18, le document de sécurité étant notamment de préférence un billet de banque, un titre, un permis de conduire ou un matériau d'emballage.
  20. Procédé pour fabriquer un document de sécurité selon la revendication 19, caractérisé en ce que dans le cas d'une impression (4) ou d'un revêtement, l'impression (4) ou le revêtement fluorescent(e) est tout d'abord appliqué(e) sur un matériau porteur (1), notamment sous la forme d'un logo, d'un motif ou d'une inscription, et un film polarisant (2) muni d'un agent adhésif (3) est ensuite collé sur la zone imprimée/revêtue, et que dans le cas d'un support avec des composants fluorescents, un film polarisant (2) muni d'un agent adhésif (3) est collé directement sur ce support.
  21. Procédé pour fabriquer un document de sécurité selon la revendication 19, caractérisé en ce qu'une caractéristique de sécurité déjà munie d'une impression fluorescente (4) disposée entre un agent adhésif (3) et un film polarisant (2) est collée sur un matériau porteur (1).
  22. Procédé de vérification d'une caractéristique de sécurité selon l'une des revendications 1 à 18 ou d'un document de sécurité selon la revendication 19, caractérisé soit par l'irradiation de lumière UV polarisée de façon linéaire (13) dont le sens de polarisation tourne, soit par l'irradiation de lumière UV non polarisée (18) et l'observation dans la plage visible effectuée à travers un filtre polarisant (19) tournant, l'observation s'effectuant soit du côté du document de sécurité sur lequel a lieu l'irradiation, soit en transmission.
EP03702269A 2002-07-19 2003-02-28 Caracteristique de securite destinee a des documents de valeur Expired - Lifetime EP1523415B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
CH127802 2002-07-19
CH12782002 2002-07-19
PCT/CH2003/000146 WO2004009373A1 (fr) 2002-07-19 2003-02-28 Caracteristique de securite destinee a des documents de valeur

Publications (2)

Publication Number Publication Date
EP1523415A1 EP1523415A1 (fr) 2005-04-20
EP1523415B1 true EP1523415B1 (fr) 2011-06-29

Family

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Application Number Title Priority Date Filing Date
EP03702269A Expired - Lifetime EP1523415B1 (fr) 2002-07-19 2003-02-28 Caracteristique de securite destinee a des documents de valeur

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Country Link
EP (1) EP1523415B1 (fr)
AT (1) ATE514562T1 (fr)
AU (1) AU2003205497C1 (fr)
WO (1) WO2004009373A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102012011168A1 (de) * 2012-06-06 2013-12-12 GM Global Technology Operations, LLC (n.d. Ges. d. Staates Delaware) Anzeigevorrichtung in einem Armaturenbrett und Verfahren zur Vermeidung von Spiegelungen

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FR2801246B1 (fr) 1999-11-19 2002-01-25 Hologram Ind Securisation de documents ou de produits par apposition d'un composant optiquement actif pour la verification de l'authenticite
DE10331798B4 (de) * 2003-07-14 2012-06-21 Giesecke & Devrient Gmbh Sicherheitselement, Wertgegenstand, Transfermaterial und Herstellungsverfahren
DE102004021248A1 (de) * 2004-04-30 2005-11-24 Giesecke & Devrient Gmbh Sicherheitselement und Verfahren zu seiner Herstellung
ATE432173T1 (de) * 2004-11-23 2009-06-15 Orell Fuessli Sicherheitsdruck Sicherheitsdokument mit lichtquelle und lichtverarbeitungsvorrichtung
EP1935663A1 (fr) 2006-12-18 2008-06-25 Setec Oy Support de données avec fenêtre de visualisation et son procédé de fabrication
AT508846B1 (de) * 2009-09-17 2012-02-15 Chemiefaser Lenzing Ag Fluoreszierende faser, deren verwendung sowie verfahren zu deren herstellung
EP3012784B1 (fr) * 2014-10-24 2017-02-15 Actilor Intellectual Asset AG Support de données lisible optiquement, sélectivement

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US3655494A (en) * 1969-05-12 1972-04-11 Polaroid Corp I. d. card laminar structures and processes for making same
US3640009A (en) * 1969-06-07 1972-02-08 Eizo Komiyama Identification cards
JPH07113985B2 (ja) * 1988-10-28 1995-12-06 株式会社日本コンラックス 紙幣識別方法
DE4114732A1 (de) * 1991-05-06 1992-11-12 Helmut Dr Bayer Sicherheitskennzeichnung fuer papiere und andere materialien mit ebenen oberflaechen
US5284364A (en) * 1992-06-10 1994-02-08 Anvik Corporation Increased-security identification card system
PL346760A1 (en) * 1998-09-25 2002-02-25 Landqart Antifalsification paper and other antifalsification items

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102012011168A1 (de) * 2012-06-06 2013-12-12 GM Global Technology Operations, LLC (n.d. Ges. d. Staates Delaware) Anzeigevorrichtung in einem Armaturenbrett und Verfahren zur Vermeidung von Spiegelungen

Also Published As

Publication number Publication date
WO2004009373A1 (fr) 2004-01-29
AU2003205497C1 (en) 2009-05-21
ATE514562T1 (de) 2011-07-15
AU2003205497A1 (en) 2004-02-09
AU2003205497B2 (en) 2007-07-05
EP1523415A1 (fr) 2005-04-20

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