EP2439078B1 - Data carrier with intersecting lines - Google Patents
Data carrier with intersecting lines Download PDFInfo
- 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
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- 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.)
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Classifications
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- 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
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- 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
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- 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
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- 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
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- 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
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- B42D2033/20—
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- B42D2033/22—
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- B42D2035/50—
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- 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.
Description
Die Erfindung betrifft einen Datenträger, insbesondere ein Wertdokument, wie eine Banknote, Ausweiskarte und dergleichen, der in einem Schnittbereich eine Mehrzahl von Schnittlinien aufweist, sowie ein Verfahren zum Herstellen eines derartigen Datenträgers.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.
Datenträger, wie Sicherheits-, Wert- oder Ausweisdokumente, aber auch andere Wertgegenstände werden zur Absicherung oft mit Sicherheitsmerkmalen ausgestattet, die eine ĂœberprĂ¼fung der Echtheit des Datenträgers gestatten und die zugleich als Schutz vor unerlaubter Reproduktion dienen.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.
Davon ausgehend liegt der vorliegenden Erfindung die Aufgabe zugrunde, einen Datenträger mit hoher Nachahmungssicherheit und attraktivem visuellen Erscheinungsbild anzugeben.Based on this, the object of the present invention is to specify a data carrier with a high security against imitation and an attractive visual appearance.
Diese Aufgabe wird durch den Datenträger und das Herstellungsverfahren mit den Merkmalen der unabhängigen AnsprĂ¼che gelöst. Weiterbildungen der Erfindung sind Gegenstand der UnteransprĂ¼che.This object is achieved by the data carrier and the production method having the features of the independent claims. Further developments of the invention are the subject of the dependent claims.
GemĂ¤ĂŸ der Erfindung enthält ein Datenträger, insbesondere ein Wertdokument, wie eine Banknote, Ausweiskarte und dergleichen, ein Substrat, in dem in einem Schnittbereich eine Mehrzahl von Schnittlinien angeordnet ist, die durch die Parameter Länge, Position, Orientierung, Breite und KrĂ¼mmung charakterisiert sind, wobei zumindest einer der charakterisierenden Parameter fĂ¼r die Schnittlinien des Schnittbereichs aperiodisch gemĂ¤ĂŸ einer Pseudozufallszahlenverteilung variiert. Der Schnittbereich kann dabei nur einen Teilbereich oder auch das gesamte Substrat umfassen.According to the invention, 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.
Vorzugsweise variiert nicht nur einer, sondern variieren sogar zwei oder mehr der charakterisierenden Parameter fĂ¼r die Schnittlinien des Schnittbereichs aperiodisch. Da die Positionen der Schnittlinien bei der Betrachtung besonders stark ins Auge fallen, ist mit Vorteil vorgesehen, dass der Parameter Position und zumindest ein weiterer charakterisierender Parameter aperiodisch variieren. Mit besonderem Vorteil sind die Schnittlinien unregelmĂ¤ĂŸig in dem Schnittbereich verteilt.Preferably, not only one varies, but even two or more of 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.
Pseudozufallszahlen sind Zahlenfolgen, die zwar zufällig erscheinen, aber durch einen deterministischen Algorithmus berechnet werden und daher im strengen Sinn keine echten Zufallszahlen sind. Dennoch werden Pseudozufallszahlen verbreitet eingesetzt, da die statistischen Eigenschaften einer Pseudozufallszahlenverteilung, wie Gleichwahrscheinlichkeit der einzelnen Zahlen oder die statistische Unabhängigkeit aufeinanderfolgender Zahlen, fĂ¼r praktische Zwecke in der Regel ausreichen und Pseudozufallszahlen mit Computern im Gegensatz zu echten Zufallszahlen einfach zu erzeugen sind. Eine Pseudozufallszahlenverteilung ist stets aperiodisch im Sinn der vorliegenden Anmeldung, da es bei einer Pseudozufallszahlenverteilung keinen festen, konstanten Abstand ("Periode") aufeinanderfolgender Zufallszahlen geben kann.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.
Bei der Verteilung der Schnittlinien kann insbesondere vorgesehen sein, dass sich zwei oder mehr der Schnittlinien kreuzen. Die Schnittlinien können im Rahmen der Erfindung sich auch bis zum Rand des Substrats hin erstrecken.In the distribution of the cutting lines, it may in particular be provided that two or more of the cutting lines intersect. In the context of the invention, the cut lines may also extend as far as the edge of the substrate.
GemĂ¤ĂŸ einer Weiterbildung der Erfindung ist das Substrat zumindest in einem Teilbereich mit einem lasermodifzierbaren Markierungsstoff versehen, und es weisen die Schnittlinien in diesem Teilbereich einen durch Einwirkung von Laserstrahlung modifizierten Randbereich auf. Vorzugsweise ist das Substrat in dem genannten Teilbereich mit einem Markierungsstoff versehen, dessen sichtbare Farbe durch die Einwirkung der Laserstrahlung veränderbar ist, so dass die Schnittlinien in diesem Teilbereich einen farbigen Randbereich aufweisen. Durch den Einsatz unterschiedlicher Markierungsstoffe können die Schnittlinien in verschiedenen Teilbereichen auch mit verschiedenfarbigen Rändern versehen sein.According to a development of the invention, 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. Preferably, 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. By using different markers, the cut lines in different subregions can also be provided with different colored edges.
Alternativ oder zusätzlich kann das Substrat mit einem Markierungsstoff versehen sein, dessen Infrarot-absorbierende, magnetische, elektrische oder lumineszierende Eigenschaften durch die Einwirkung der Laserstrahlung veränderbar sind. Die Schnittlinien eines mit einem solchen Markierungsstoff versehenen Teilbereichs weisen dann einen Randbereich mit gegenĂ¼ber ihrem Umfeld veränderten Infrarot-absorbierenden, magnetischen, elektrischen oder lumineszierenden Eigenschaften auf, die eine weiter Möglichkeit zur maschinellen EchtheitsprĂ¼fung bieten.Alternatively or additionally, 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.
Als Markierungsstoffe können vorteilhaft lasermodifizierbare Effektpigmente oder auch pigmentfreie lasermodifizierbare Markierungsstoffe eingesetzt werden. Beispiele geeigneter Markierungsstoffe sowie die Art und Weise ihrer Auf- oder Einbringung in ein Substrat können der Druckschrift
Der Schnittbereich des Datenträgers kann beispielsweise in Form eines Streifens ausgebildet sein. Mit besonderem Vorteil ist der Schnittbereich allerdings in Form einer Codierung ausgebildet, wodurch, wie weiter unten genauer erläutert, in vorteilhafter Weise eine alternative oder zusätzliche visuelle und maschinelle EchtheitsprĂ¼fung ermöglicht wird.The cutting region of the data carrier can be designed, for example, in the form of a strip. With particular advantage, however, 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.
Die einzelnen Schnittlinien weisen vorzugsweise eine Länge zwischen 1 mm und 20 mm und/oder eine Breite zwischen 0,05 mm und 1 mm, insbesondere zwischen 0,1 mm und 0,4 mm auf. Zusammen mit ihrer aperiodischen Anordnung, insbesondere ihrer unregelmĂ¤ĂŸigen Verteilung erzeugen die Schnittlinien dann ein ähnliches Erscheinungsbild wie bei der Papierherstellung in die Papiermasse eingebrachte Melierfasern. Ein Melierfasercharakter ist insbesondere dann gegeben, wenn die Schnitte mit einer Farbannahmeschicht Ă¼berdruckt sind. Der Melierfasercharakter kann durch farbigen oder fluoreszierenden Motivdruck auf der Gegenseite noch verstärkt werden. Dadurch erscheinen die Schnitte farbig und/ oder fluoreszierend.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 Melierfasercharakter is given in particular when the sections are overprinted with a dye receiving layer. The Melierfasercharakter can be enhanced by colored or fluorescent motif print on the opposite side. As a result, the cuts appear colored and / or fluorescent.
Der Schnittbereich des Datenträgers kann mit Vorteil durch ein Folienelement verstärkt sein. Es ist jedoch selbstverständlich auch möglich, den Schnittbereich ohne zusätzliches Folienelement als Sicherheitselement einzusetzen.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.
Das Substrat des Datenträgers ist mit Vorteil ausgewählt aus der Gruppe, bestehend aus einem Papiersubstrat, einem Papier mit Synthesefasern, einem Verbundsubstrat, insbesondere mit der Schichtenfolge Folie/Papier/Folie, Papier/Folie/Papier oder Folie/Folie/Folie und einem Polymersubstrat. In Polymer- und Verbundsubstraten kann auf diese Weise das von Papiersubstraten her bekannten Erscheinungsbild von Melierfasern nachgebildet werden. Bei einem Plastikverbund Folie/Folie/Folie sind die Schnittlinien selbst bei einer transparenten mittleren Folie wegen der LufteinschlĂ¼sse zu sehen und Ă¼ber eine Sensorik sehr gut zu registrieren. Die Bezeichnung "Polymersubstrat" schlieĂŸt insbesondere Substrate aus synthetischem Polymer, Polymerfolien, Plastik oder Kunststoff ein.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. In polymer and composite substrates, the appearance of mottled fibers known from paper substrates can be reproduced in this way. In the case of a plastic composite film / film / film, 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. The term "polymer substrate" includes in particular substrates of synthetic polymer, polymer films, plastic or plastic.
Bei dem Datenträger kann es sich insbesondere um ein Sicherheitselement, ein Sicherheitspapier oder ein Wertdokument, insbesondere eine Banknote handeln.The data carrier may in particular be a security element, a security paper or a value document, in particular a banknote.
Die Erfindung enthält auch ein Verfahren zum Herstellen eines Datenträgers der oben genannten Art. Dabei wird in einem Schnittbereich des Substrats durch Laserschneiden eine Mehrzahl von Schnittlinien erzeugt, die durch die Parameter Länge, Position, Orientierung, Breite und KrĂ¼mmung charakterisiert sind, wobei bei der Erzeugung der Schnittlinien zumindest einer der charakterisierenden Parameter der Schnittlinien des Schnittbereichs aperiodisch variiert wird.The invention also includes a method for producing a data carrier of the type mentioned above. In a cutting region of the substrate by laser cutting 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.
In einer vorteilhaften Weiterbildung wird das Substrat zumindest in einem Teilbereich mit einem lasermodifzierbaren Markierungsstoff versehen, so dass die Schnittlinien in diesem Teilbereich durch die Einwirkung von Laserstrahlung in ihrem Randbereich modifiziert werden. Vorzugsweise erhalten die Schnittlinien in diesem Teilbereich durch die Lasermodifikation einen farbigen Randbereich.In an advantageous development, 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.
Weitere AusfĂ¼hrungsbeispiele sowie Vorteile der Erfindung werden nachfolgend anhand der Figuren erläutert, bei deren Darstellung auf eine maĂŸstabs- und proportionsgetreue Wiedergabe verzichtet wurde, um die Anschaulichkeit zu erhöhen.Further exemplary embodiments and advantages of the invention are explained below with reference to the figures, in the representation of which a representation true to scale and proportion has been dispensed with in order to increase the clarity.
Es zeigen:
- Fig.1
- eine schematische Darstellung einer Banknote nach einem AusfĂ¼hrungsbeispiel der Erfindung,
- Fig. 2
- eine Aufsicht auf ein Substrat mit einer Anzahl an unterschiedlichen Schnittlinien,
- Fig. 3
- in (a) eine Skizze zur Erläuterung der Veränderung der Schnittbreite bei Schneidlaserstrahlen mit unterschiedlich hohen Maximalleistungen und in (b) schematisch die räumliche Energieverteilung eines Schneidlaserstrahls zur Erläuterung der Entstehung des Randeffekts, und
- Fig. 4
- in (a) und (b) zwei erfindungsgemĂ¤ĂŸe Banknoten mit unterschiedlichen Schnittbereichscodierungen.
- Fig.1
- a schematic representation of a banknote according to an embodiment of the invention,
- Fig. 2
- a plan view of a substrate with a number of different cutting lines,
- Fig. 3
- in (a) a sketch for explaining the change in the cutting width in cutting laser beams with different maximum powers and in (b) schematically the spatial energy distribution of a cutting laser beam to explain the formation of the edge effect, and
- Fig. 4
- in (a) and (b) two banknotes according to the invention with different cutting area codes.
Die Erfindung wird nun am Beispiel einer Banknote erläutert.
Die Schnittlinien 14 wurden dabei jeweils durch die Einwirkung von Laserstrahlung in das Banknotenpapier geschnitten, beispielsweise durch die 10,6 µm Strahlung eines CO2-Schneidlasers. Die Schnittbreite der Linien 14 kann dabei durch die Wahl der Laserparameter, insbesondere der Laserleistung und/ oder der Schnittgeschwindigkeit beim Schneidevorgang nach Wunsch eingestellt werden, wie weiter unten genauer beschrieben.The
Die Schnittlinien 14 sind jeweils durch die Parameter Position, Orientierung, Länge, Schnittbreite und KrĂ¼mmung charakterisiert, wobei im AusfĂ¼hrungsbeispiel der
Im Gegensatz zu einer aperiodischen Variation ändert sich bei einer periodischen Variation der Wert eines Parameters zwischen aufeinanderfolgenden Schnittlinien jeweils in derselben Weise. Ist beispielsweise der Parameter Position in einer oder zwei Raumrichtungen periodisch, so weisen die Schnittlinien in einer oder zwei Raumrichtungen einen konstanten Abstand auf, ist der Parameter Orientierung periodisch, so sind benachbarte Schnittlinien jeweils um einen konstanten Winkel gegeneinander gedreht, etc.In contrast to an aperiodic variation, in a periodic variation, 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.
Bei einer aperiodischen Variation gibt es dagegen keine einfache Beziehung zwischen dem Parameterwert einer Schnittlinie und dem Parameterwert einer benachbarten Schnittlinie. Die Verteilung der Schnittlinien 14 im Schnittbereich 12 wirkt dann fĂ¼r das menschliche Auge unregelmĂ¤ĂŸig und zufällig wie in
Bevorzugt unterscheidet sich die Verteilung der Schnittlinien 14 fĂ¼r verschiedene Exemplare der Banknote 10 voneinander. Dabei kann sowohl vorgesehen sein, dass jedes Banknotenexemplar eine nur ein einziges Mal vorkommende Schnittlinienverteilung erhält, als auch dass eine Menge an zur VerfĂ¼gung stehenden Schnittlinienverteilungen bestimmt wird und jedes Banknotenexemplar eine Schnittlinienverteilung aus dieser Menge erhält. In diesem Fall werden jeweils mehrere Banknotenexemplare dieselbe Schnittlinienverteilung aufweisen.The distribution of the cut lines 14 for different copies of the
Die fĂ¼r eine Banknote 10 gewählte Schnittlinienverteilung kann auch mit einer weiteren Kennzeichnung der Banknote 10 in Beziehung stehen, beispielsweise mit der Seriennummer 16 der Banknote. In einem einfachen Beispiel werden zunächst zehn zur VerfĂ¼gung stehende Schnittlinienverteilungen bestimmt. Banknoten aus dem Seriennummernbereich 0000001 bis 0100000 erhalten die erste Schnittlinienverteilung, Banknoten aus dem Seriennummernbereich 0100001 bis 0200000 die zweite Schnittlinienverteilung, und so weiter, bis nach dem Seriennummernbereich 0900001 bis 1000000, der die zehnte Schnittlinienverteilung erhält, die Zuordnung von vorne beginnt. Bei der EchtheitsprĂ¼fung kann durch einen Vergleich der Schnittlinienverteilung mit der fĂ¼r diese Seriennummer vorgesehenen Verteilung die Echtheit der Note verifiziert werden.The cut line distribution selected for a
Trotz des unregelmĂ¤ĂŸigen und zufälligen Erscheinungsbilds ist die Schnittlinienverteilung des AusfĂ¼hrungsbeispiels deterministisch und wird beispielsweise mit Hilfe eines Pseudozufallszahlengenerators eines Computers erzeugt.Despite the irregular and random appearance, the cut-line distribution of the embodiment is deterministic and is generated, for example, by means of a pseudorandom number generator of a computer.
Durch die deterministische Erzeugung der Schnittlinienverteilung kann die Echtheit einer Banknote 10 auch geprĂ¼ft werden, ohne dass die Schnittlinienverteilungen selbst in einer Datenbank gespeichert werden mĂ¼ssen. So kann etwa festgelegt werden, dass die charakterisierenden Parameter der Schnittlinien fĂ¼r eine bestimmte Denomination nach einem festgelegten Schema aus den ersten N Werten eines vorgegebenen Pseudozufallszahlengenerators mit einem vorgegebenen Startwert bestimmt werden. Auf diese Weise ergibt sich eine begrenzte Anzahl von gĂ¼ltigen Schnittlinienverteilungen, die bei Kenntnis des Berechnungsschemas jederzeit neu berechnet werden können.Due to the deterministic generation of the cut-line distribution, the authenticity of a
Bei der maschinellen PrĂ¼fung einer Banknote 10 kann dann die auf der Note vorliegende Verteilung erfasst werden und es kann mit Hilfe eines Computers geprĂ¼ft werden, ob die erfasste Verteilung einer der gĂ¼ltigen Verteilungen entspricht. Diese PrĂ¼fung kann, wie oben beschrieben, auch eine Zuordnung zu einer weiteren Kennzeichnung 16 auf der Banknote 10 berĂ¼cksichtigen, beispielsweise indem bestimmte Verteilungen nur fĂ¼r bestimmte Seriennummern gĂ¼ltig sind.During the automatic examination of a
Die charakterisierenden Parameter der Schnittlinien 14 werden nun mit Bezug auf die Aufsicht der
Die Schnittlinien 22, 24 stellen auch ein Beispiel fĂ¼r eine unterschiedliche Orientierung von Schnittlinien gleicher Gestalt dar. Im Rahmen der Erfindung kann auch die Länge der Schnittlinien variieren, wie beispielhaft anhand der Schnittlinien 30, 32 illustriert. Typischerweise liegt die Länge der Schnittlinien zwischen 1 mm und 20 mm.The cut lines 22, 24 also represent an example of a different orientation of cut lines of the same shape. In the context of the invention, the length of the cut lines can also vary, as illustrated by way of example with reference to the cut lines 30, 32. Typically, the length of the cut lines is between 1 mm and 20 mm.
Die Breite der Schnittlinien kann durch die Wahl der Laserparameter beim Schneidevorgang eingestellt werden und kann ebenfalls variieren, wie anhand der Schnittlinien 34, 36 gezeigt. Vorzugsweise liegt die Breite der Schnittlinien zwischen 0,05 mm und 1 mm, insbesondere zwischen 0,1 mm und 0,4 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. Preferably, the width of the cutting lines is between 0.05 mm and 1 mm, in particular between 0.1 mm and 0.4 mm.
Zur Illustration der Einstellung der Schnittbreite ist in
Eine Veränderung der Schnittbreite 62, 66 kann auch durch eine Ă„nderung der Schnittgeschwindigkeit bei konstanter Laserleistung erreicht werden. Bei einer hohen Schnittgeschwindigkeit wirkt die Laserstrahlung nur relativ kurz auf das Substrat 20 ein, so dass der Energieeintrag ins Substrat gering ist. Entsprechend wird die zum Schneiden des Substrats benötigte Schwellenenergie nur in einem schmalen Schnittbereich mit hoher Laserleistung Ă¼berschritten. Bei einer niedrigeren Schnittgeschwindigkeit wirkt die Laserstrahlung dagegen länger auf das Substrat ein, so dass ein höherer Energieeintrag ins Substrat resultiert. Entsprechend ergibt sich ein breiterer Schnittbereich, in dem die zum Schneiden des Substrats 20 benötigte Schwellenergie Ă¼berschritten wird. Die beiden Parameter Laserleistung und Schnittgeschwindigkeit können selbstverständlich auch gemeinsam und gleichzeitig verändert werden, um eine grĂ¶ĂŸere Variationsbreite zur VerfĂ¼gung zu haben.A change in the
ZurĂ¼ckkommend auf die Darstellung der
Die Schnittlinien 50 können weiter auf beiden Seiten von einem perfekt gepasserten Rand 52 umgeben sein. Dazu wird das Substrat 20 vor dem Laserschneiden in einem Teilbereich 54 mit einem lasermodifizierbaren Merkmalsstoff, beispielsweise mit lasermodifizierbaren Effektpigmenten versehen, die bei Einwirkung von Laserstrahlung eine gewĂ¼nschte Farbänderung, etwa von farblos zu rot, zeigen.The cut lines 50 may be further surrounded on both sides by a perfectly matched
Das Prinzip der gleichzeitigen und perfekt gepasserten Erzeugung der Schnittlinien 50 und eines farbigen Rands 52 ist in
Durch die Verwendung verschiedener Markierungsstoffe können die Schnittlinien in verschiedenen Teilbereichen auch mit verschiedenfarbigen Rändern versehen sein. Solche Gestaltungen sind einerseits visuell attraktiv, andererseits können Gebiete mit unterschiedlicher Randfarbe auch eine Codierung und damit ein weiteres Echtheitskennzeichen bilden.By using different markers, 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.
Anstatt die Parameter einer Schnittlinienverteilung vollständig fĂ¼r die EchtheitsprĂ¼fung zu verwenden, kann beispielsweise auch der Schnittbereich eines Datenträgers in Form einer Codierung gestaltet sein und diese Codierung fĂ¼r die EchtheitsprĂ¼fung eingesetzt werden. Selbstverständlich kann die Codierung des Schnittbereichs auch zusätzlich zur vollständigen Schnittlinienverteilung fĂ¼r die EchtheitsprĂ¼fung eingesetzt werden, etwa mit geringerem Aufwand am Point of Sale, während die vollständige Schnittlinienverteilung mit höherem Aufwand in einer Bank geprĂ¼ft wird.For example, instead of using the parameters of a cut line distribution completely for the authenticity check, 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. Of course, 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.
Zur Illustration zeigt
Beim Laserschneiden werden nun die Gebiete 86 innerhalb des Streifens 84 nicht mit Schnittlinien 88 versehen, so dass die GrĂ¶ĂŸe und Lage der schnittlinienfreien Gebiete 86 innerhalb des Streifens 84 eine erfassbare Codierung bildet. Bei der EchtheitsprĂ¼fung kann nun beispielsweise maschinell Ă¼berprĂ¼ft werden, ob bei einer Banknote die Gebiete 86 tatsächlich schnittlinienfrei sind.In laser cutting, the
Eine solche PrĂ¼fung kann auch visuell erfolgen, indem etwa einem Bankmitarbeiter oder einem Kassierer von einem PrĂ¼fgerät eine Schablone mit den Schnittlinienbereichen bzw. den schnittlinienfreien Bereichen angezeigt wird. Beispielsweise könnte eine Mattscheibe, auf die die Banknote 80 gelegt wird, nur in den Gebieten 86 beleuchtet werden, so dass eine dort dennoch vorhandene und auf eine Fälschung hinweisende Schnittlinie 88 im Durchlicht sofort auffallen wĂ¼rde.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. For example, a ground glass, on which the
Auf die Details der Schnittlinienverteilung kommt es bei dieser Variante der EchtheitsprĂ¼fung nicht an, sondern lediglich darauf, ob die Schnittlinien ausschlieĂŸlich in den dafĂ¼r vorgesehen Bereichen angeordnet sind oder nicht.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.
Vorzugsweise steht die Codierung der Schnittbereiche mit einer weiteren Kennzeichnung, beispielsweise der Seriennummer 85 der Banknote, in Beziehung. In einem einfachen Beispiel werden zwei verschiedene Schnittbereichscodierungen 82, 92 festgelegt, wie in
Bei der PrĂ¼fung der Banknoten 80, 90 kann der Nutzer nun beispielsweise die Seriennummer 85, 95 in ein PrĂ¼fgerät eingeben, das dann eine Schablone mit den Schnittlinienbereichen bzw. den schnittlinienfreien Bereichen fĂ¼r diese Seriennummer anzeigt und die Verifikation der Banknote 80, 90 ermöglicht. Es versteht sich, dass mit Vorteil komplizierte Zuordnungen zwischen Seriennummern und Codierung gewählt werden, so dass, solange die Zuordnung der Seriennummern geheim gehalten wird, fĂ¼r einen potentiellen Fälscher nicht nachvollziehbar ist, welche Codierung welchen Seriennummern zugeordnet ist.When checking the
Bei dem genannten Substrat 20 kann es sich beispielsweise um ein Papiersubstrat, aber auch um ein Polymersubstrat oder um ein Verbundsubstrat handeln.The mentioned
Claims (12)
- A data carrier, especially a value document (10), such as a banknote, identification card and the like, having a substrate in which is arranged, in a cutting region (12), a plurality of cutting lines (14) that are characterized by the parameters length, position, orientation, width and curvature, at least one of the characterizing parameters for the cutting lines of the cutting region varying aperiodically according to a pseudo-random number distribution.
- The data carrier according to claim 1, characterized in that two or more of the characterizing parameters vary aperiodically for the cutting lines of the cutting region, especially in that the parameter position and at least one further characterizing parameter vary aperiodically.
- The data carrier according to at least one of claims 1 to 2, characterized in that the cutting lines are distributed irregularly in the cutting region.
- The data carrier according to at least one of claims 1 to 3, characterized in that two or more of the cutting lines intersect.
- The data carrier according to at least one of claims 1 to 4, characterized in that the substrate is provided at least in a sub-region with a laser-modifiable marking substance, and in that the cutting lines in said sub-region comprise an edge region that is modified by the action of laser radiation, preferably in that the substrate is provided in the sub-region with a marking substance whose visible color is modifiable by the action of the laser radiation, and in that the cutting lines in said sub-region comprise a colored edge region.
- The data carrier according to at least one of claims 1 to 5, characterized in that the cutting region is developed in the form of a strip or a code.
- The data carrier according to at least one of claims 1 to 6, characterized in that the cutting lines have a length between 1 mm and 20 mm and/ or a width between 0.05 mm and 1 mm, especially between 0.1 mm and 0.4 mm.
- The data carrier according to at least one of claims 1 to 7, characterized in that the cutting region is reinforced by a foil element.
- The data carrier according to at least one of claims 1 to 8, characterized in that the substrate is selected from the group consisting of a paper substrate, a paper having synthetic fibers, a composite substrate, especially having the layer sequence foil/paper/foil, paper/foil/paper or foil/foil/foil, and a polymer substrate.
- The data carrier according to at least one of claims 1 to 9, characterized in that the data carrier is a security element, a security paper or a value document.
- A method for manufacturing a data carrier according to one of claims 1 to 10 that exhibits a substrate into which the cutting lines are to be introduced, there being produced in the method, by laser cutting in a cutting region of the substrate, a plurality of cutting lines that are characterized by the parameters length, position, orientation, width and curvature, wherein, in producing the cutting lines, at least one of the characterizing parameters of the cutting lines of the cutting region is varied aperiodically according to a pseudo-random number distribution.
- The method according to claim 11, characterized in that the substrate is provided at least in a sub-region with a laser-modifiable marking substance, such that the cutting lines in said sub-region are modified in their edge region, preferably obtain a colored edge region, by the action of laser radiation.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102010047949A DE102010047949A1 (en) | 2010-10-08 | 2010-10-08 | Disk with cut lines |
Publications (3)
Publication Number | Publication Date |
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EP2439078A2 EP2439078A2 (en) | 2012-04-11 |
EP2439078A3 EP2439078A3 (en) | 2013-05-01 |
EP2439078B1 true EP2439078B1 (en) | 2015-03-04 |
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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EP11007947.2A Not-in-force EP2439078B1 (en) | 2010-10-08 | 2011-09-30 | Data carrier with intersecting lines |
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EP (1) | EP2439078B1 (en) |
DE (1) | DE102010047949A1 (en) |
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GB9707849D0 (en) * | 1997-04-18 | 1997-06-04 | De La Rue Thomas & Co Ltd | Structure |
DE102005032997A1 (en) * | 2005-07-14 | 2007-01-18 | Giesecke & Devrient Gmbh | Lattice image and method for its production |
DE102009011424A1 (en) | 2008-12-22 | 2010-07-01 | Giesecke & Devrient Gmbh | Disk with transparency |
-
2010
- 2010-10-08 DE DE102010047949A patent/DE102010047949A1/en not_active Withdrawn
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2011
- 2011-09-30 EP EP11007947.2A patent/EP2439078B1/en not_active Not-in-force
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DE102010047949A1 (en) | 2012-04-12 |
EP2439078A3 (en) | 2013-05-01 |
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