WO2010028758A1 - Procédé de fabrication d'un document de sécurité ou de valeur - Google Patents

Procédé de fabrication d'un document de sécurité ou de valeur Download PDF

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Publication number
WO2010028758A1
WO2010028758A1 PCT/EP2009/006317 EP2009006317W WO2010028758A1 WO 2010028758 A1 WO2010028758 A1 WO 2010028758A1 EP 2009006317 W EP2009006317 W EP 2009006317W WO 2010028758 A1 WO2010028758 A1 WO 2010028758A1
Authority
WO
WIPO (PCT)
Prior art keywords
markings
color
marking
laser
layer
Prior art date
Application number
PCT/EP2009/006317
Other languages
German (de)
English (en)
Inventor
Annett Bähr
André Gregarek
Markus Krombholz
Bernhard Wiedner
Original Assignee
Giesecke & Devrient 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 Giesecke & Devrient Gmbh filed Critical Giesecke & Devrient Gmbh
Priority to RU2011113450/12A priority Critical patent/RU2503547C2/ru
Priority to EP09778243A priority patent/EP2342084A1/fr
Publication of WO2010028758A1 publication Critical patent/WO2010028758A1/fr

Links

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
    • B42D25/40—Manufacture
    • B42D25/405—Marking
    • B42D25/41—Marking using electromagnetic radiation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
    • B41M3/00—Printing processes to produce particular kinds of printed work, e.g. patterns
    • B41M3/14—Security printing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
    • B41M5/00—Duplicating or marking methods; Sheet materials for use therein
    • B41M5/24—Ablative recording, e.g. by burning marks; Spark recording
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
    • B41M5/00—Duplicating or marking methods; Sheet materials for use therein
    • B41M5/26—Thermography ; Marking by high energetic means, e.g. laser otherwise than by burning, and characterised by the material used
    • 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
    • B42D25/355—Security threads
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H21/00—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties
    • D21H21/14—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties characterised by function or properties in or on the paper
    • D21H21/40—Agents facilitating proof of genuineness or preventing fraudulent alteration, e.g. for security paper
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F3/00—Labels, tag tickets, or similar identification or indication means; Seals; Postage or like stamps
    • G09F3/02—Forms or constructions
    • G09F3/0291—Labels or tickets undergoing a change under particular conditions, e.g. heat, radiation, passage of time
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F3/00—Labels, tag tickets, or similar identification or indication means; Seals; Postage or like stamps
    • G09F3/02—Forms or constructions
    • G09F3/03—Forms or constructions of security seals
    • G09F3/0305—Forms or constructions of security seals characterised by the type of seal used
    • G09F3/0341—Forms or constructions of security seals characterised by the type of seal used having label sealing means
    • B42D2033/10—
    • B42D2033/20—
    • B42D2035/24—
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F3/00—Labels, tag tickets, or similar identification or indication means; Seals; Postage or like stamps
    • G09F3/02—Forms or constructions
    • G09F2003/0276—Safety features, e.g. colour, prominent part, logo
    • G09F2003/0277—Tamper resistant

Definitions

  • the invention relates to methods for producing a security or value document and a security element as well as security or value documents or security elements produced by these methods.
  • Security or value documents such as banknotes, identity cards and the like, are often provided with a number of different security features for security purposes, which permit verification of the authenticity of the documents and at the same time serve as protection against unauthorized reproduction. Due to production-related register tolerances, however, it is generally difficult or impossible to align two or more different security features so precisely that the security features complement one another to form an overall design.
  • the object of the present invention is to avoid the disadvantages of the prior art and, in particular, to provide security and value documents with high counterfeit security and an attractive visual appearance.
  • the invention relates to a method for producing a security or value document, characterized by the method steps: B) providing a laminate with a paper substrate, a mask layer present in a mask region on the paper substrate, and a laser-modifiable marker present in a marking region, the marker region overlapping the mask region, and
  • the exact register arrangement of the two different types of markings creates a visually appealing authenticity mark from two different markings on the security or value document, which has a high recognition value. Due to the unavoidable for a separate production of the markers tolerances readjustment for third parties is also associated with high difficulties, so that the security or value document also has a high counterfeit security.
  • a metal layer can be provided as the mask layer, but it is also possible to use dielectric layers, in particular color-shifting dielectric layers or colored printed layers.
  • the laser radiation can also cause matting of the metal and thus produce a register-accurate transition from color-changed areas to matted metallization.
  • a Dielectric spacer layer and an aluminum reflective layer include, can be removed by the laser radiation, only the partially transparent chromium layer, so that as a negative marking an aluminum-colored area in front of a farbkippenden background arises.
  • color-changed markings and negative markings are preferably generated, which complement each other to provide overall information.
  • the color-changed markings and the negative markings may be, for example, complementary components of letters, a lettering, a number sequence, a logo or a uniform graphic motif.
  • a fitted arrangement of the color-changed markings and the negative markings is absolutely necessary. The correctness of the authenticity mark formed from the two markings can be recognized by the user without aids and can also be understood without explanations.
  • the paper substrate and the mask layer are coated in step B) with the marker, for example printed.
  • the paper substrate can be coated in areas with a primer before coating with the marker, by means of which the color effect of the marking area is changed in the Laserbeauf suppression.
  • the primer may alternatively or additionally also be provided with a further laser-modifiable marking substance in order to produce color-changed markings having a different color effect in step L) when the laser is applied to the primer-coated areas.
  • the marking substance is introduced into the volume of the paper substrate in step B).
  • the marker can be mixed, for example, in the sheet formation of the paper pulp, it can be introduced into the paper substrate in a dip or the paper substrate can be impregnated in a size press with the marker.
  • other coating methods such as application of the feature substance by means of curtain coating or by brushing, come into consideration.
  • the mask layer is provided with recesses in the form of patterns, characters or a coding, at least in the marking region, before the laser application in step L).
  • negative identifiers are then advantageously generated whose information content is correlated with the information content of the recesses of the mask layer.
  • two pieces of information have a meaningful relationship if they represent interrelated or complementary information.
  • the second information may refer to the first information, repeat it in whole or in part, or supplement it to a total information.
  • the mask layer is produced in step B) on a film layer and applied to the paper substrate together with it.
  • the mask layer may represent the reflective layer of an embossed and metallized diffraction structure or the reflector layer of a thin-film element with a color-shift effect.
  • the invention is not limited to such embodiments, in particular In particular, the mask layer can be applied directly to the paper substrate even without a film layer.
  • the film layer can be provided with a further marker-modifiable marker, so that in step L) markings having a different color effect are produced simultaneously and precisely in unmasked partial regions of the film layer.
  • the color-changed markings in non-masked subregions of the paper substrate, the color-changed markings in unmasked areas of the film layer and the negative markings are designed in particular in such a way that they complement one another in overall information.
  • the film layer can be coated with the marker or the marker can be introduced into the volume of the film layer.
  • laser radiation in the infrared spectral range is preferably used, in particular laser radiation of a CO 2 laser having a wavelength of about 10.6 ⁇ m or a Nd: Y AG laser having a wavelength of 1.064 ⁇ m.
  • the invention also includes a security or value document which can be produced in the manner described and which has a layer composite comprising at least one paper substrate, a mask layer present in a mask region on the paper substrate and a laser-modifiable marking substance present in a marking region, in which negative markings in the mask layer and color-changed markings in unmasked partial areas of the marking area are introduced by laser application.
  • the invention contains a method for producing a security element, characterized by the method steps:
  • Mask layer is provided with recesses in the form of patterns, characters or a coding and which has a laser-modifiable marker in a mask region overlapping the mask region, and
  • a metal layer may be provided as the mask layer, but it is also possible to use dielectric layers, in particular color-shifting dielectric layers or colored printed layers.
  • color-changed markings and negative markings are preferably generated in step L), which complement each other to a total information. Furthermore, such negative markings and / or color-changed markings are advantageously generated whose information content is in a meaningful context with the information content of the recesses of the mask layer.
  • laser radiation in the infrared spectral range is preferably used in step L), in particular laser radiation of a CO 2 laser of a wavelength of about 10.6 microns or a Nd: Y AG laser wavelength of 1.064 microns.
  • screened negative markings can be generated in step L, so that it is possible to generate designs by overlaying negative markings and a color-changed marking, in which, for example, a hologram structure of a metallic mask layer in reflected light also in the region of the negative Marking remains visible.
  • the invention further includes a security element producible in the manner described and having a film layer provided in a mask region with a mask layer having recesses in the form of patterns, characters or an encoding, and overlapping in a mask region Marking region has a laser-modifiable marker, wherein by laser application accurately negative markings in the mask layer and color-changed markings are introduced in non-masked portions of the film layer.
  • the security element preferably represents a security thread, a security tape, a security strip, a patch, a label or other transfer element for application to a security paper, document of value or the like.
  • a security thread preferably represents a security thread, a security tape, a security strip, a patch, a label or other transfer element for application to a security paper, document of value or the like.
  • the invention especially in patches or laminated or non-laminated security threads apply.
  • a Nes: Y AG laser of a wavelength of 1.064 microns, whose radiation penetrates the laminated film be advantageous.
  • suitable for use as laser-modifiable markers are, for example, effect pigments which change their visible color by the action of the laser radiation, in particular thermoreactive color pigments, such as ultramarine blue.
  • effect pigments it is also possible to use a pigment-free laser-modifiable marker.
  • color-changed markings can be generated in step L) with a color changed under ambient viewing conditions.
  • ambient viewing conditions are the normally present viewing conditions in daylight or artificial light without special irradiation of the security or value document to understand.
  • color-changed markings can be produced with an altered luminescence color appearing on illumination with excitation radiation.
  • luminescent colors are not recognizable as such in the case of ambient viewing conditions, but appear only when the security or value document is irradiated with suitable excitation radiation, with UV radiation typically being used as the excitation radiation.
  • laser-modifiable markers luminescent and in particular fluorescent dyes are used in these variants.
  • the luminescent feature substances advantageously appear transparent and / or colorless under ambient viewing conditions.
  • FIG. 1 is a schematic representation of a banknote secured according to the invention
  • FIG. 2 shows a detail of FIG. 1 in the edge region of the metallized film strip
  • FIG. 3 shows sectional views along the line III-III of FIG. 2, in (a) before and in (b) after the laser application,
  • FIG. 4 shows plan views of the edge region of a metal layer protected on paper according to the invention, wherein (a) shows the state before and (b) the state after the laser application,
  • FIG. 5 shows in (a) a plan view of the edge region of another metal layer secured on paper according to the invention, in (b) a sectional view along the line B-B of (a),
  • FIG. 6 shows in (a) a plan view and in (b) a sectional view of a metal layer protected according to the invention with multistage color effect
  • FIGS. 7 (c) and (d) are plan views as in FIGS. 7 (c) and (d) for another embodiment of the invention.
  • Fig. 10 in (a) a rasterized superimposition of negative markings and color-changed markings and in (b) and (c) the visual impression of the design of (a) in reflected light or transmitted light, and
  • FIG. 11 shows a cross section through a film strip according to a further exemplary embodiment of the invention.
  • FIG. 1 shows a schematic representation of a banknote 10 with a paper substrate 12 and a throughgoing opening 14, which is covered with a metallized film strip 16.
  • the metal layer 18 of the foil strip 16 is typically part of an embossed, metallized diffraction structure or a thin-film element with Farbkippeff ect.
  • the invention is not limited to such a configuration but is generally applicable to a laminate of a paper substrate having metal layers, dielectric layers or colored printed layers.
  • the banknote 10 for authenticity protection has a marking 20 which is in perfect registration a colored marking 22 in the paper substrate 12 and a negative marking 24 in the metal layer 18 of the film strip 16 includes.
  • the mark 20 is formed in the embodiment by the letter sequence "PL", however, it should be understood that the mark may in practice be in the form of any alphanumeric character strings, graphic patterns or encodings upper part of the letter sequence "PL” formed in the exemplary embodiment by a red marking 22 in the paper substrate.
  • the subsequent in perfect Pass réelle lower part of the letter sequence "PL” is formed by the negative marking 24 of the metal layer 18, which occurs in the illustrated embodiment with the white color of the paper background in front of the metallic background of the Folienstif 16 ens appearance.
  • a marking layer 32 with a laser-modifiable marking substance was applied over a large area to the paper substrate 12 and the metal layer 18 in a marking area 30, which shows a desired color change, for example a color change from transparent to red, upon exposure to laser radiation.
  • the layer composite of paper substrate 12, metal layer 18 and marking layer 32 in the marking region 30 is exposed to laser radiation 34 and nachtral by suitable guidance of the laser beam, the shape of the desired mark 20.
  • a laser source for example, a CO 2 laser of a wavelength of 10.6 microns can be used, with which can produce the desired markings with high production speed.
  • Fig. 3 (b) shows a sectional view of the bill along the line III-III of Fig. 2 after laser marking.
  • the markings 22, 24 are thus generated in the same operation by the same laser beam, they are in perfect register with each other.
  • Core of the invention is that although the mark 20 may have a total of production-related Passerschwankache relative to the edge of the metal layer 18, but that the simultaneously generated identifications 22 and 24 to each other have no Passerschwankache and therefore complement each other seamlessly and without offset to the mark 20.
  • the metal layer 40 of the film strip 16 is additionally provided with recesses 42 in the form of patterns and micro-letters, which can be produced for example by a washing process of the type described in the document WO 99/13157.
  • the edge region of the metal layer 40 shown in more detail in Fig. 4 (a), each periodically has a metallic micro-letter "D" (reference numeral 46) within a rectangular recess 44 of the metal layer Any information represented by the recesses 42, in particular for a micro-font stands.
  • the film strip 16 provided with the structured metal layer 40, 42 is applied to a paper substrate 12, the paper substrate 12 and the metal layer 40, 42 are overprinted over a large area with a marking layer in a marking area and laser radiation is applied to the layer composite in order to apply the superordinate layer Marker 20, which in the exemplary embodiment for illustration again by the letter sequence "PL" is shown to produce.
  • a change in color of the marking substance from transparent to red is induced by the action of the laser radiation in the non-metallized regions, so that both in the paper substrate 12 and Also in the non-metallized portions of the film strip 16, a red marking 48 is generated.
  • the marking substance is removed along with the metal layer 40 in subregions, so that the white background color of the paper substrate 12 becomes visible in these regions 50.
  • the micro-letters 46 in the laser-exposed areas now form a metal-free, white micro-writing against the red background of the marking 48.
  • the result is a perfect register between the metallized parts of the marking Micro-letters 46, the metal-free, white parts of the micro-letters 46 and the red background marking 48.
  • a primary track 52 applied to the paper substrate 12 is used for further gradation of the color design of the marking 20.
  • the primer 52 is, for example, a lacquer which is applied to the paper substrate 12 prior to the application of a metallized film strip 16 and which typically serves to flatten the paper, to ensure better adhesion of the film strip 16 and / or a brighter to achieve a visual appearance of the film strip.
  • the color change of the marker can be influenced by the primer with suitable matching of marker and primer.
  • the primary track 52 is in a width 54, which extends beyond the edge of the metallized film strip 16.
  • the marking substance in the area of the primary track 52 undergoes, for example, a color change from transparent to orange and thus creates orange markings 62 in the paper substrate 12, while it changes its color from transparent to red in area 56 outside of the primary track 52 and thus red markings 60 generated in the paper substrate.
  • the matched color identifiers 60, 62 are additionally combined, as described above, with the mated negative indicia 64 of the metal layer.
  • the primer 52 may also be provided with another laser-modifiable marker to produce a different color effect in laser coating in the primer-coated regions 54.
  • the marking 20 is produced with a multi-level color effect, as shown in plan view in FIG. 6 (a) and in section in FIG. 6 (b).
  • the paper substrate 12 is provided with a first laser-modifiable marking substance 70, which shows a first color transition, for example a color transition from transparent to red, under the action of a laser.
  • the only partially metallized 18 foil strip 16 is provided with a second laser-modifiable marker 72, which shows a different color transition, for example, from transparent to green under laser action.
  • the laser application then produces a mark 20 "PL" with three visually distinguishable subregions
  • the laser radiation In the subregions of the paper substrate 12 which are printed with the first marking substance 70, the laser radiation generates red markings 74.
  • the laser radiation In the non-metallized subregions of the film strip 16, which are provided with the second marking substance 72, the laser radiation generates green markings 76 and in the metallized portions 18 of the foil strip 16 are created by the laser negative action markings 78, in which the underlying white paper substrate 12 is visible Subregions are generated in the same operation by the same laser beam, they are in perfect registration to each other, even if the mark 20 may have a total of Passerschwankept based on the edge of the film strip 16 and the edge of the metal layer 18.
  • the first marking substance can be applied to the paper substrate 12, for example printed on it, or it can be introduced into the volume of the paper substrate 12.
  • the latter can already take place during papermaking by admixture of the marking substance to the paper pulp during sheet formation or else subsequently in a dip bath or by impregnation in the size press.
  • Other coating methods such as application of the feature substance by means of curtain coating or by brushing, are also possible.
  • second marker can be applied to the film layer, in particular be printed.
  • the marker may also be admixed with a coating such as a UV lacquer layer, a film primer or an adhesive layer.
  • a coating such as a UV lacquer layer, a film primer or an adhesive layer.
  • the paper and / or the UV varnish can also be provided with a print design, for example with a strip-shaped printing raster.
  • the marker can of course also be arranged below the metal layer.
  • a marking layer 90 of a dye which is substantially transparent in the visible spectral range and is fluorescent under UV irradiation is applied to a paper substrate 12, the fluorescence properties of which can be destroyed by the action of laser radiation.
  • a film strip 16 provided with a metal layer 18 is applied to this marking layer 90.
  • This layer composite is exposed to laser radiation 34, wherein the shape of the desired marking 20 is traced by suitable guidance of the laser beam.
  • FIG. 7 (c) shows the appearance of the marked layer composite in plan view under ambient viewing conditions, ie when viewed with normal daylight or artificial light. Under such viewing conditions, only the negative markings 24 within the metal layer 18 can be seen. The local destruction of the fluorescence properties of the dye 90 in the area of the markings 22, on the other hand, remains hidden, as indicated by the dashed edge of the mark 22 in FIG. 7 (c).
  • the mark 20 formed by the markings 22 and 24 appears completely.
  • the fluorescent dye 90 lights up by excitation with UV radiation in a characteristic fluorescent color.
  • the fluorescence outside the overlapping area in the region of the markings 22 is suppressed, since there the fluorescence properties of the dye 90 were destroyed by the action of the laser.
  • the labels 22 therefore appear dark against the bright background of the fluorescence.
  • the metallization 18 also appears dark in the UV light, with the exception of only the identification areas 24 in which the metal layer has been removed, but the dye 90 has not been destroyed. In the area of the markings 24, therefore, fluorescent light is likewise to be observed.
  • the identically generated markings 22, 24 complement each other seamlessly and without offset to the mark 20, wherein the complete mark, unlike in the embodiments described above, only becomes visible upon UV irradiation.
  • a dye 92 which changes color in the visible is arranged above a fluorescent dye 90 and the metallized film strip 16, 18, the appearance of which changes from transparent to red as a result of the action of laser radiation.
  • Fig. 8 (a) After labeling, the appearance shown in Fig. 8 (a) then results in ambient viewing conditions where the mark 20 is formed by a negative mark 24 in the metal layer 18 and a red mark 22 in the color changing dye 92.
  • Mark 20 also clearly visible, but with a different visual appearance. In the region of the markings 22, the fluorescence is suppressed, because there along with the color change of the color-changing dye 92 and the fluorescence properties of the dye 90 were destroyed. On the other hand, outside the markings 22 and the metallization 18, fluorescent light is observed, so that the markings 22 appear dark against a bright fluorescence background. The metallization 18 also appears dark in the UV light, except for only the marking areas 24, in which the metal layer and the overlying color-changing dye 92 are removed, but the fluorescent dye 90 was not destroyed, so that there is also fluorescent light to observe. Another embodiment employing two superimposed fluorescent dyes is shown in FIG. In this case, two transparent dyes 90, 94 which fluoresce under UV irradiation with different colors were used, and the laser energy during the application is selected so that only the fluorescence properties of the upper dye 90 are destroyed in the region of the label 22.
  • the last-mentioned multi-layer structures can be combined with additional visual effects, as described in German patent application DE 10 2008 019 092.6, the disclosure of which is incorporated in the present application in this respect.
  • additional visual effects are created by
  • Bl providing a layer composite of at least one paper substrate which is provided with a laser-modifiable marking substance in a marking area, and a security element which is weakenable by laser action in the marking area, and Ll) applying laser radiation to the laminate to simultaneously and accurately create lines of weakness in the security element and by modification of the marker to cause marks in the paper substrate,
  • Partial area is provided with a relief structure and with a second partial area
  • a mask layer is applied to the first subregion with relief structure and the second subregion, so that the subregions provided with the mask layer interact with different intensity with the laser radiation of a selected laser source
  • the first and second partial area are exposed to laser radiation of the selected laser source in order to generate negative markings by the action of the laser radiation in at least one of the two partial areas.
  • the area of the paper substrate in which negative markings are introduced by the laser radiation can be provided with a laser-modifiable marking substance of the type described above, so that negative and negative markings in the partial area occur simultaneously when registering the layer composite with laser radiation the mask layer and color-changed markings are created in the underlying paper substrate.
  • the first subregion of the mask layer is produced in particular as a relief structure with a grid pattern which is defined by a first grid constant and a first orientation of the grid lines
  • the second subarea is preferably produced as a relief structure with a grid pattern represented by a second grid constant and a second orientation of the grid lines is defined.
  • the second lattice constant and / or the second orientation thereby differ from the first lattice constant and / or the first orientation.
  • a raster demetallization a superposition of negative markings and color-changed markings, in which a hologram structure of the metal layer remains visible.
  • a layer composite 100 consisting of a paper substrate 12, a marking layer 32 and a metal layer 102 with hologram structure 104 is subjected to laser radiation, wherein the desired marking 20 is scanned in rastered form by suitable guidance of the laser beam ,
  • the screening may be in the form of narrow stripes, but any other raster shapes may be used.
  • the dimensions of the strips are shown exaggerated in Fig. 10 (a) for better visibility, in practice, the screening is chosen so fine that it is difficult or impossible without optical aids.
  • negative markings 24 and congruent colored markings 22 are produced in the paper substrate 12 by the laser radiation at the same time.
  • the colored indicia 22 continue to register with the colored, demetallized indicia 22, 24 of the metal layer 102 without register variations.
  • FIGS. 10 (b) and 10 (c) The visual impression of such a marking 20 in reflected light or in transmitted light is shown in FIGS. 10 (b) and 10 (c).
  • the screening is chosen so finely that the subdivision of the mark 20 in raster strip is not visible to the naked eye.
  • both the design of the colored marking 22 and the hologram 104 of the metal layer 102 can now be recognized due to the screening, as shown in FIG. 10 (b).
  • FIG. 10 (c) When viewed in transmitted light, however, only the design of the colored marking 22 can be seen, as shown in Fig. 10 (c).
  • a mark is produced directly on a foil strip, as shown in FIG.
  • the film strip 80 is provided in a metallization region with a metal layer 82 with recesses in the form of patterns, characters or an encoding.
  • the film strip is provided with a laser-modifiable marking substance 84 in a marking region overlapping the metallization region, for example printed with the marking substance.
  • the marker has a desired laser-induced color transition, for example from transparent to green.
  • the film strip 80 is exposed to laser radiation in the marking area in order to simultaneously and precisely register negative markings 88 in the metal layer 82 and colored, green in the exemplary embodiment, markings 86 in non-metallized portions of the film strip 80. Since the markings 86, 88 are generated in the same operation by the same laser beam, they are in perfect register with each other and complement each other to the desired mark, even if the marking overall Passerschwankept relative to the edge of the film strip 80 and relative to the recesses 82 of the metal layer 80 may have.
  • the colored markings 86 and the negative markings 88 preferably complement one another to provide overall information, such as a font. train.
  • the information content of this total information is advantageous with the information content of the recesses of the metal layer in a sense context.
  • the visual appearance of the film strip provided with the mark corresponds to the design shown in FIG. 4 (b), wherein the colored markings 86 can not of course extend beyond the edge of the film strip 80.
  • the finished, metallized and marked film may then be transferred to a target substrate, for example pasted over a hole of a banknote 10, as shown in FIG.

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Toxicology (AREA)
  • General Health & Medical Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Electromagnetism (AREA)
  • Health & Medical Sciences (AREA)
  • Business, Economics & Management (AREA)
  • Accounting & Taxation (AREA)
  • Finance (AREA)
  • Computer Security & Cryptography (AREA)
  • Optics & Photonics (AREA)
  • Thermal Transfer Or Thermal Recording In General (AREA)
  • Laser Beam Processing (AREA)

Abstract

L'invention concerne un procédé de fabrication d'un document de sécurité ou de valeur, comportant les étapes suivantes: B) mise en oeuvre d'un composite en couches constitué d'un substrat de papier (12), d'une couche de masque (18) présente dans une zone de masque sur le substrat de papier (12), et d'une substance de marquage (32) pouvant être modifiée par laser, présente dans une zone de marquage (30), la zone de marquage (30) chevauchant la zone de masque; et L) application d'un rayonnement laser au composite en couches dans la zone de marquage (30) afin de produire simultanément et précisément par rapport à un repère, des symboles négatifs (24) dans la couche de masque (18) et des symboles (22) de couleur modifiée dans des parties non masquées de la zone de marquage.
PCT/EP2009/006317 2008-09-10 2009-09-01 Procédé de fabrication d'un document de sécurité ou de valeur WO2010028758A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
RU2011113450/12A RU2503547C2 (ru) 2008-09-10 2009-09-01 Способ изготовления защищенного или ценного документа
EP09778243A EP2342084A1 (fr) 2008-09-10 2009-09-01 Procédé de fabrication d'un document de sécurité ou de valeur

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102008046513A DE102008046513A1 (de) 2008-09-10 2008-09-10 Verfahren zur Herstellung eines Sicherheits-oder Wertdokuments
DE102008046513.5 2008-09-10

Publications (1)

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WO2010028758A1 true WO2010028758A1 (fr) 2010-03-18

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PCT/EP2009/006317 WO2010028758A1 (fr) 2008-09-10 2009-09-01 Procédé de fabrication d'un document de sécurité ou de valeur

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EP (1) EP2342084A1 (fr)
DE (1) DE102008046513A1 (fr)
RU (1) RU2503547C2 (fr)
WO (1) WO2010028758A1 (fr)

Cited By (7)

* Cited by examiner, † Cited by third party
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WO2012072214A1 (fr) * 2010-12-01 2012-06-07 Giesecke & Devrient Gmbh Support de données à marquage
WO2013127650A1 (fr) * 2012-03-02 2013-09-06 Tesa Scribos Gmbh Étiquette de sécurité et son procédé de fabrication
RU2588446C2 (ru) * 2010-12-01 2016-06-27 Гизеке Унд Девриент Гмбх Носитель данных с маркировкой
EP2488918A4 (fr) * 2009-10-14 2016-11-30 Xyleco Inc Marquage de produits en papier
EP3231625A1 (fr) * 2016-04-12 2017-10-18 Giesecke+Devrient Currency Technology GmbH Traitement laser d'un revêtement comprenant des pigments à effets
US20190193445A1 (en) * 2016-05-20 2019-06-27 Spi Lasers Uk Limited Method For Creating A Mark With A Desired Colour On An Article
US10410453B2 (en) 2014-07-08 2019-09-10 Xyleco, Inc. Marking plastic-based products

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DE102015003785A1 (de) 2015-03-23 2016-09-29 Giesecke & Devrient Gmbh Verfahren zum Herstellen eines Fensters in einem Papiersubstrat mit einem Sicherheitselement
DE102016006929A1 (de) 2016-06-06 2017-12-07 Giesecke+Devrient Currency Technology Gmbh Sicherheitsmerkmal und Verfahren zu dessen Herstellung
DE102016006931A1 (de) 2016-06-06 2017-12-07 Giesecke+Devrient Currency Technology Gmbh Sicherheitsmerkmal und Verfahren zu dessen Herstellung
DE102016014845A1 (de) 2016-12-13 2018-06-14 Giesecke+Devrient Currency Technology Gmbh Laserschneiden und Laserverfärben von Sicherheitsdokumenten
DE102018005990A1 (de) 2018-07-27 2020-01-30 Giesecke+Devrient Currency Technology Gmbh Verfahren zur Herstellung eines Sicherheitsmerkmals mittels Laserstrahlung

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WO2005108109A1 (fr) 2004-05-05 2005-11-17 Giesecke & Devrient Gmbh Document de valeur
EP1661729A2 (fr) * 2004-11-30 2006-05-31 MERCK PATENT GmbH Marquage au laser sur document de valeur
WO2006128607A2 (fr) * 2005-06-01 2006-12-07 Giesecke & Devrient Gmbh Support de donnees, et son procede de production

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DE19739193B4 (de) 1997-09-08 2006-08-03 Giesecke & Devrient Gmbh Verfahren zur Herstellung von Sicherheitsfolien für Wertpapiere
DE102005003958A1 (de) 2005-01-27 2006-08-03 Giesecke & Devrient Gmbh Sicherheitselement und Verfahren zu seiner Herstellung
DE102008019092A1 (de) 2008-04-16 2009-10-22 Giesecke & Devrient Gmbh Verfahren zur Herstellung eines Sicherheits- oder Wertdokuments

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WO2005108109A1 (fr) 2004-05-05 2005-11-17 Giesecke & Devrient Gmbh Document de valeur
EP1661729A2 (fr) * 2004-11-30 2006-05-31 MERCK PATENT GmbH Marquage au laser sur document de valeur
WO2006128607A2 (fr) * 2005-06-01 2006-12-07 Giesecke & Devrient Gmbh Support de donnees, et son procede de production

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2488918A4 (fr) * 2009-10-14 2016-11-30 Xyleco Inc Marquage de produits en papier
EP3376285A1 (fr) * 2009-10-14 2018-09-19 Xyleco, Inc. Marquage de produits de papier
US10380388B2 (en) 2009-10-14 2019-08-13 Xyleco, Inc. Marking paper products
WO2012072214A1 (fr) * 2010-12-01 2012-06-07 Giesecke & Devrient Gmbh Support de données à marquage
CN103338942A (zh) * 2010-12-01 2013-10-02 德国捷德有限公司 带有特征标识的数据载体
RU2588446C2 (ru) * 2010-12-01 2016-06-27 Гизеке Унд Девриент Гмбх Носитель данных с маркировкой
WO2013127650A1 (fr) * 2012-03-02 2013-09-06 Tesa Scribos Gmbh Étiquette de sécurité et son procédé de fabrication
CN104144796A (zh) * 2012-03-02 2014-11-12 蒂萨斯克里博斯有限责任公司 防伪标签及其生产方法
CN104144796B (zh) * 2012-03-02 2016-08-24 蒂萨斯克里博斯有限责任公司 防伪载体及其制造方法
US10410453B2 (en) 2014-07-08 2019-09-10 Xyleco, Inc. Marking plastic-based products
EP3231625A1 (fr) * 2016-04-12 2017-10-18 Giesecke+Devrient Currency Technology GmbH Traitement laser d'un revêtement comprenant des pigments à effets
US20190193445A1 (en) * 2016-05-20 2019-06-27 Spi Lasers Uk Limited Method For Creating A Mark With A Desired Colour On An Article

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RU2503547C2 (ru) 2014-01-10
EP2342084A1 (fr) 2011-07-13
DE102008046513A1 (de) 2010-04-29
RU2011113450A (ru) 2012-10-20

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