EP2439078B1 - Support de données doté de lignes de coupe - Google Patents

Support de données doté de lignes de coupe Download PDF

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Publication number
EP2439078B1
EP2439078B1 EP11007947.2A EP11007947A EP2439078B1 EP 2439078 B1 EP2439078 B1 EP 2439078B1 EP 11007947 A EP11007947 A EP 11007947A EP 2439078 B1 EP2439078 B1 EP 2439078B1
Authority
EP
European Patent Office
Prior art keywords
cutting
region
data carrier
substrate
cutting lines
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.)
Not-in-force
Application number
EP11007947.2A
Other languages
German (de)
English (en)
Other versions
EP2439078A3 (fr
EP2439078A2 (fr
Inventor
Gregarek André
Manfred Dr. Heim
Patrick Dr. Renner
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Giesecke and Devrient GmbH
Original Assignee
Giesecke and 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 and Devrient GmbH filed Critical Giesecke and Devrient GmbH
Publication of EP2439078A2 publication Critical patent/EP2439078A2/fr
Publication of EP2439078A3 publication Critical patent/EP2439078A3/fr
Application granted granted Critical
Publication of EP2439078B1 publication Critical patent/EP2439078B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • B42D25/40—Manufacture
    • B42D25/405—Marking
    • B42D25/41—Marking using electromagnetic radiation
    • 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
    • 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
    • B42D25/21—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof characterised by a particular use or purpose for multiple purposes
    • 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
    • B42D25/40—Manufacture
    • B42D25/405—Marking
    • B42D25/43—Marking by removal of material
    • B42D2033/20—
    • B42D2033/22—
    • B42D2035/50—
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B42—BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
    • B42D—BOOKS; BOOK COVERS; LOOSE LEAVES; PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITY FEATURES; PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOT OTHERWISE PROVIDED FOR; DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDED FOR; MOVABLE-STRIP WRITING OR READING APPARATUS
    • B42D25/00—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof
    • B42D25/30—Identification or security features, e.g. for preventing forgery
    • B42D25/346—Perforations

Definitions

  • the invention relates to a data carrier, in particular a value document, such as a banknote, identity card and the like, which has a plurality of cutting lines in a cutting region, and a method for producing such a data carrier.
  • a data carrier in particular a value document, such as a banknote, identity card and the like, which has a plurality of cutting lines in a cutting region, and a method for producing such a data carrier.
  • Data carriers such as security, value or identity documents, but also other valuables are often equipped with security features for security, which allow verification of the authenticity of the data carrier and at the same time serve as protection against unauthorized reproduction.
  • the object of the present invention is to specify a data carrier with a high security against imitation and an attractive visual appearance.
  • a data carrier in particular a value document, such as a banknote, identity card and the like, contains a substrate in which a plurality of cutting lines, which are characterized by the parameters length, position, orientation, width and curvature, are arranged in a cutting region, wherein at least one of the characterizing parameters for the cutting lines of the cutting region varies aperiodically according to a pseudorandom number distribution.
  • the cutting region may comprise only a portion or the entire substrate.
  • the characterizing parameters vary aperiodically for the intersections of the intersection region. Since the positions of the cutting lines are particularly noticeable when viewed, it is advantageously provided that the parameter position and at least one further characterizing parameter vary aperiodically. With particular advantage, the cutting lines are distributed irregularly in the cutting area.
  • Pseudo-random numbers are sequences of numbers that appear random but are calculated by a deterministic algorithm and therefore are not truly random numbers in the strict sense. Nevertheless, pseudo-random numbers are widely used because the statistical properties of a pseudorandom number distribution, such as the odds of individual numbers or the statistical independence of consecutive numbers, are usually sufficient for practical purposes, and pseudorandom numbers are easy to generate with computers as opposed to true random numbers.
  • a pseudorandom number distribution is always aperiodic in the sense of the present application, since there can be no fixed, constant distance ("period") of consecutive random numbers in a pseudorandom number distribution.
  • the cutting lines may in particular be provided that two or more of the cutting lines intersect.
  • the cut lines may also extend as far as the edge of the substrate.
  • the substrate is provided with a laser-modifiable marking substance at least in a partial area, and the cut lines in this subarea have an edge region modified by the action of laser radiation.
  • the substrate is provided in the said subregion with a marking substance, the visible color of which can be changed by the action of the laser radiation, so that the cutting lines in this subregion have a colored edge region.
  • the cut lines in different subregions can also be provided with different colored edges.
  • the substrate may be provided with a marking substance whose infrared-absorbing, magnetic, electrical or luminescent properties can be changed by the action of the laser radiation.
  • the cut lines of a subarea provided with such a marking substance then have an edge region with infrared-absorbing, magnetic, electrical or luminescent properties which have been changed with respect to their environment and which offer a further possibility for automated authenticity testing.
  • laser-modifiable effect pigments or pigment-free laser-modifiable markers can be used.
  • suitable marking substances and the manner of their application or incorporation into a substrate can the document WO 2010 / 072329A1 are removed, the disclosure of which is included in the present application in this respect.
  • the cutting region of the data carrier can be designed, for example, in the form of a strip.
  • the cutting area is formed in the form of a coding, which, as more detailed below explained, advantageously an alternative or additional visual and mechanical authenticity testing is possible.
  • the individual cutting lines preferably have a length between 1 mm and 20 mm and / or a width between 0.05 mm and 1 mm, in particular between 0.1 mm and 0.4 mm. Together with their aperiodic arrangement, in particular their irregular distribution, the cut lines then produce a similar appearance as in the papermaking introduced into the pulp mottled fibers.
  • a Melierfaser decision is given in particular when the sections are overprinted with a dye receiving layer.
  • the Meliermaschine decision can be enhanced by colored or fluorescent motif print on the opposite side. As a result, the cuts appear colored and / or fluorescent.
  • the cutting area of the data carrier can advantageously be reinforced by a film element. However, it is of course also possible to use the cutting area without additional foil element as a security element.
  • the substrate of the data carrier is advantageously selected from the group consisting of a paper substrate, a paper with synthetic fibers, a composite substrate, in particular with the layer sequence film / paper / film, paper / film / paper or film / film / film and a polymer substrate.
  • a paper substrate a paper with synthetic fibers
  • a composite substrate in particular with the layer sequence film / paper / film, paper / film / paper or film / film / film and a polymer substrate.
  • the appearance of mottled fibers known from paper substrates can be reproduced in this way.
  • the cutting lines can be seen even in the case of a transparent middle film because of the air inclusions and can be very easily registered via a sensor system.
  • polymer substrate includes in particular substrates of synthetic polymer, polymer films, plastic or plastic.
  • the data carrier may in particular be a security element, a security paper or a value document, in particular a banknote.
  • the invention also includes a method for producing a data carrier of the type mentioned above.
  • a plurality of cutting lines is generated, which are characterized by the parameters length, position, orientation, width and curvature, wherein in the generation the cutting lines of at least one of the characterizing parameters of the cutting lines of the cutting region is aperiodically varied.
  • the substrate is provided with a laser-modifiable marking substance at least in a partial region, so that the cutting lines in this partial region are modified by the action of laser radiation in its edge region.
  • the cut lines in this subarea preferably receive a colored border area as a result of the laser modification.
  • Fig.1 shows a schematic representation of a banknote 10, which has a plurality of short, irregularly distributed cutting lines 14 in a cutting area 12.
  • the cutting lines 14 were cut in each case by the action of laser radiation in the banknote paper, for example by the 10.6 microns radiation of a CO 2 cutting laser.
  • the cutting width of the lines 14 can be adjusted as desired by the choice of the laser parameters, in particular the laser power and / or the cutting speed during the cutting process, as described in more detail below.
  • the cutting lines 14 are each characterized by the parameters position, orientation, length, cutting width and curvature, in the embodiment of the Fig.1 the parameters position, orientation, length and curvature vary aperiodically while the parameter cutting width is constant for all cutting lines 14.
  • each of the parameters position, orientation, length and curvature changes from one cutting line 14 to the next in different ways, ie without a constant distance (parameter position), a constant rotation (parameter orientation), a constant change in length or a constant Change in the bending behavior would be present.
  • the value of a parameter between successive intersection lines changes in the same way. If, for example, the parameter position in one or two spatial directions is periodic, then the cut lines have a constant spacing in one or two spatial directions, if the orientation parameter is periodic, adjacent cut lines are each rotated by a constant angle, etc.
  • the distribution of the cut lines 14 for different copies of the banknote 10 preferably differs from each other. In this case, it can be provided both that each banknote copy receives a cut-line distribution that occurs only once, and that a set of available cut-line distributions is determined and each banknote copy receives a cut-line distribution from this set. In this case, several banknote copies will each have the same cut-line distribution.
  • the cut line distribution selected for a banknote 10 may also be related to a further identification of the banknote 10, for example the serial number 16 of the banknote.
  • ten available cut line distributions are first determined. Banknotes from the serial number range 0000001 to 0100000 receive the first cut line distribution, banknotes from the serial number range 0100001 to 0200000 the second cut line distribution, and so on, until after the serial number range 0900001 to 1000000, which receives the tenth cut line distribution, the assignment starts from the beginning.
  • the authenticity of the note can be verified by comparing the cut line distribution with the distribution provided for that serial number.
  • the cut-line distribution of the embodiment is deterministic and is generated, for example, by means of a pseudorandom number generator of a computer.
  • the authenticity of a banknote 10 can also be checked without the cut-line distributions themselves having to be stored in a database. For example, it may be determined that the characterizing parameters of the intersection lines for a particular denomination are determined according to a fixed pattern from the first N values of a given pseudo-random number generator having a predetermined starting value. In this way results in a limited number of valid cut line distributions, which can be recalculated at any time knowing the calculation scheme.
  • the distribution present on the note can then be recorded and it can be checked by means of a computer whether the recorded distribution corresponds to one of the valid distributions. As described above, this check can also take into account an assignment to a further identification 16 on the banknote 10, for example in that certain distributions are only valid for certain serial numbers.
  • the cut lines 14 may be both straight (cut lines 22, 24) and curved (cut lines 26 - 36).
  • the curvature behavior can be different, in particular the cutting lines can have a constant curvature, an increasing or decreasing curvature with the same sign, ie a curvature in the same direction (intersection line 28), or quite generally a sectionally positive and negative curvature (intersection line 26). exhibit.
  • the cut lines 22, 24 also represent an example of a different orientation of cut lines of the same shape.
  • the length of the cut lines can also vary, as illustrated by way of example with reference to the cut lines 30, 32.
  • the length of the cut lines is between 1 mm and 20 mm.
  • the width of the cut lines may be adjusted by the choice of laser parameters in the cutting process and may also vary as shown by the cut lines 34, 36.
  • the width of the cutting lines is between 0.05 mm and 1 mm, in particular between 0.1 mm and 0.4 mm.
  • Fig. 3 (a) shown the substantially Gaussian spatial distribution of the power P of a cutting laser beam.
  • the energy input of the laser radiation into the substrate exceeds the threshold energy needed to cut the substrate 20 in a wide intersection region 62.
  • the threshold energy needed to cut the substrate 20 becomes only exceeded in a narrower cutting area 66, so that a smaller cutting width results.
  • a change in the cutting width 62, 66 can also be achieved by changing the cutting speed at a constant laser power.
  • the laser radiation acts only relatively briefly on the substrate 20, so that the energy input into the substrate is low. Accordingly, the threshold energy required to cut the substrate is exceeded only in a narrow cutting area with high laser power.
  • the laser radiation acts longer on the substrate, resulting in a higher energy input into the substrate. Accordingly, there is a wider cut area in which the threshold energy needed to cut the substrate 20 is exceeded.
  • the two parameters laser power and cutting speed can also be used together and simultaneously be changed to have a wider range of variation available.
  • intersection lines 40 may intersect, as shown in the intersection line 42. It should be noted, however, that the cutting lines do not contain a closed curve 44, as this would cut out a partial region of the substrate 20.
  • the cut lines 50 may be further surrounded on both sides by a perfectly matched edge 52.
  • the substrate 20 is provided before the laser cutting in a partial region 54 with a laser-modifiable feature substance, for example with laser-modifiable effect pigments which show a desired color change, for example from colorless to red, upon exposure to laser radiation.
  • FIG Fig. 3 (b) illustrates where the spatial power distribution 70 of the cutting laser beam is shown schematically.
  • the laser energy exceeds the threshold energy E 1 required to cut the substrate 20.
  • E 2 is in Fig. 3 (b) denotes the reaction energy of the effect pigments, when exceeded the desired color change takes place.
  • the marking region 74 the laser energy lies between the energy E 2 required for the color change and the energy E 1 required for cutting, so that a color change of the effect pigments is induced in the marking region 74 becomes, the substrate 20 but not cut.
  • a perfectly adjusted edge 52 is automatically generated.
  • the cut lines in different subregions can also be provided with different colored edges.
  • Such designs are on the one hand visually attractive, on the other hand, areas with different border color can also form a coding and thus a further authenticity mark.
  • the cut area of a data carrier can also be designed in the form of a coding and this coding can be used for the authenticity check.
  • the coding of the cutting area can also be used in addition to the complete cut line distribution for the authenticity check, such as with less effort at the point of sale, while the complete cut line distribution is checked with greater effort in a bank.
  • FIG. 4 For illustration shows Fig. 4 in (a) a banknote 80, whose cutting region 82 is formed in the form of an encoding.
  • the cutting region 82 consists of a strip 84 extending from the bottom upwards on the banknote, but without the hatched areas 86 in the figure.
  • These regions 86 which are not permitted for cutting lines within the strip 84 are hatched in the figure by way of illustration only they do not differ on a real bill 80 from the areas outside the stripe 84.
  • the regions 86 within the strip 84 are now not provided with cut lines 88, so that the size and position of the cut line-free Areas 86 within the strip 84 forms a detectable coding.
  • the authenticity check it is now possible, for example, to machine check whether, in the case of a banknote, the areas 86 are actually cut-line-free.
  • Such a check may also be done visually, for example by displaying to a bank employee or a cashier from a tester a template with the cut-line areas or cut-line-free areas.
  • a ground glass, on which the banknote 80 is placed could only be illuminated in the areas 86, so that a cut line 88, which nevertheless exists there and points to a forgery, would immediately be noticed in the transmitted light.
  • the details of the cut line distribution are not important in this variant of the authenticity check, but merely whether the cut lines are arranged exclusively in the areas provided for this purpose or not.
  • the coding of the intersection regions is associated with a further identification, for example the serial number 85 of the banknote.
  • two different slice codes 82, 92 are set, as in FIG 4 (a) and (b) for the banknotes 80 and 90 shown.
  • Banknotes whose serial numbers 85 are even-numbered are assigned the area code encoding 82 of FIG Fig. 4 (a) If the checksum of the serial number 95 is odd, the encoding 92 becomes the Fig. 4 (b) used.
  • the cutting area 92 of Fig. 4 (b) consists of how the cutting area 82 of Fig. 4 (a) , from a strip 94 with regions 98 free of cutting lines 98.
  • the codings of FIGS. 4 (a) and (b) differ in particular in the size and location of the cut-line-free areas 86, 96 within the strips 84, 94th
  • the user can now, for example, enter the serial number 85, 95 in a tester, which then displays a template with the cut-line areas or cut-line areas for this serial number and allows the verification of the banknote 80, 90. It is understood that complicated assignments between serial numbers and coding are advantageously chosen so that, as long as the assignment of the serial numbers is kept secret, it is not comprehensible to a potential counterfeiter which coding is assigned to which serial numbers.
  • the mentioned substrate 20 may be, for example, a paper substrate, but also a polymer substrate or a composite substrate.

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Electromagnetism (AREA)
  • General Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Business, Economics & Management (AREA)
  • Accounting & Taxation (AREA)
  • Finance (AREA)
  • Optics & Photonics (AREA)
  • Credit Cards Or The Like (AREA)

Claims (12)

  1. Support de données, en particulier document de valeur (10), tel un billet de banque, une carte d'identité et similaire, avec un substrat dans lequel une pluralité de lignes de coupe (14) sont disposées dans une zone de coupe (12), lesquelles sont caractérisées par les paramètres de longueur, position, orientation, largeur et courbure, au moins l'un des paramètres de caractérisation pour les lignes de coupe de la zone de coupe variant de manière apériodique conformément à une répartition de nombres pseudo-aléatoire.
  2. Support de données selon la revendication 1, caractérisé en ce que deux ou davantage des paramètres de caractérisation pour les lignes de coupe de la zone de coupe varient de manière apériodique, en particulier en ce que le paramètre de position et au moins un autre paramètre de caractérisation varient de manière apériodique.
  3. Support de données selon l'une au moins des revendications 1 à 2, caractérisé en ce que les lignes de coupe sont réparties de manière irrégulière dans la zone de coupe.
  4. Support de données selon l'une au moins des revendications 1 à 3, caractérisé en ce que deux ou davantage de lignes de coupe se croisent.
  5. Support de données selon l'une au moins des revendications 1 à 4, caractérisé en ce qu'au moins dans une zone partielle, le substrat est pourvu d'une substance de marquage modifiable par laser, et en ce que les lignes de coupe dans cette zone de coupe présentent une zone de bord modifiée sous l'effet d'un rayonnement laser, de manière préférée, en ce que dans cette zone partielle, le substrat est pourvu d'une substance de marquage dont la couleur visible est modifiable sous l'effet du rayonnement laser, et en ce que les lignes de coupe dans cette zone partielle présentent une zone de bord colorée.
  6. Support de données selon l'une au moins des revendications 1 à 5, caractérisé en ce que la zone de coupe est réalisée sous la forme d'une bande ou d'un codage.
  7. Support de données selon l'une au moins des revendications 1 à 6, caractérisé en ce que les lignes de coupe présentent une longueur comprise entre 1 mm et 20 mm et/ou une largeur comprise entre 0,05 mm et 1 mm, en particulier entre 0,1 mm et 0,4 mm.
  8. Support de données selon l'une au moins des revendications 1 à 7, caractérisé en ce que la zone de coupe est renforcée par un élément en feuille.
  9. Support de données selon l'une au moins des revendications 1 à 8, caractérisé en ce que le substrat est sélectionné dans le groupe se composant d'un substrat en papier, d'un papier avec des fibres synthétiques, d'un substrat composite, en particulier avec la succession de couches : feuille/papier/feuille/papier/feuille/papier ou feuille/feuille/feuille et un substrat polymère.
  10. Support de données selon l'une au moins des revendications 1 à 9, caractérisé en ce que le support de données est un élément de sécurité, un papier de sécurité ou un document de valeur.
  11. Procédé pour la fabrication d'un support de données selon l'une des revendications 1 à 10, lequel présente un substrat dans lequel les lignes de coupe doivent être intégrées, dans lequel, avec le procédé, une pluralité de lignes de coupe sont produites dans une zone de coupe du substrat grâce à un découpage au laser, lesquelles sont caractérisées par les paramètres de longueur, position, orientation, largeur et courbure, dans lequel, lors de la production des lignes de coupe, au moins l'un des paramètres de caractérisation des lignes de coupe de la zone de coupe varie de manière apériodique conformément à une répartition de nombres pseudo-aléatoires.
  12. Procédé selon la revendication 11, caractérisé en ce que le substrat est pourvu d'une substance de marquage modifiable par laser au moins dans une zone partielle, de sorte que les lignes de coupe dans cette zone partielle sont modifiées au niveau de leur zone de bord sous l'effet d'un rayonnement laser, en obtenant de préférence une zone de bord colorée.
EP11007947.2A 2010-10-08 2011-09-30 Support de données doté de lignes de coupe Not-in-force EP2439078B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102010047949A DE102010047949A1 (de) 2010-10-08 2010-10-08 Datenträger mit Schnittlinien

Publications (3)

Publication Number Publication Date
EP2439078A2 EP2439078A2 (fr) 2012-04-11
EP2439078A3 EP2439078A3 (fr) 2013-05-01
EP2439078B1 true EP2439078B1 (fr) 2015-03-04

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Application Number Title Priority Date Filing Date
EP11007947.2A Not-in-force EP2439078B1 (fr) 2010-10-08 2011-09-30 Support de données doté de lignes de coupe

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EP (1) EP2439078B1 (fr)
DE (1) DE102010047949A1 (fr)

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB9707849D0 (en) * 1997-04-18 1997-06-04 De La Rue Thomas & Co Ltd Structure
DE102005032997A1 (de) * 2005-07-14 2007-01-18 Giesecke & Devrient Gmbh Gitterbild und Verfahren zu seiner Herstellung
DE102009011424A1 (de) 2008-12-22 2010-07-01 Giesecke & Devrient Gmbh Datenträger mit Durchsichtsbereich

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EP2439078A3 (fr) 2013-05-01
DE102010047949A1 (de) 2012-04-12
EP2439078A2 (fr) 2012-04-11

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