ES2727274T3 - Data support with characteristic zone and procedure - Google Patents

Abstract

Data carrier, in particular value document, such as a banknote or identification card, with a substrate (20), in which a characteristic area (12; 100) is formed by a set of curves from a plurality of curved and / or divergent cutting lines (22; 102), a mark (30; 110) being disposed visually and / or by machine in the form of a drawing, character within the characteristic area (12; 100) or code, characterized in that i) the mark (110) is formed by an uncut area of the substrate (20) with a set of marking curves from a plurality of marking lines (112) which are located after the cut lines (102) outside the mark (110), or ii) the mark (30) is formed by a set of curves from a plurality of curved and / or divergent cut lines (32), of so that the cut lines (32) of the mark (30) form first cut lines and the lines of cutting (22), located outside the mark, of the characteristic zone (12) form second cutting lines, the first and second cutting lines (32, 22) being placed next to each other and presenting a width of different cut.

Description

DESCRIPTION

Data support with characteristic zone and procedure

The invention relates to a data carrier, in particular a value document, such as a banknote, an identification card and the like, with a characteristic area, as well as to a method for manufacturing a data carrier. this type.

Data carriers, such as security, value or identification documents, but also other valuables, are often provided for the protection of security features that allow checking the authenticity of the data carrier and serve as protection at the same time. Against unauthorized reproduction. In this sense, transparent security features are becoming increasingly attractive, for example, transparent windows on banknotes. For the creation of windows, for example, a sheet provided with an adhesive layer is applied on a banknote in order to close a continuous opening previously made in the banknote.

From document EP0543528A1 a security document is known that has a predetermined weakened area that can then accommodate an image of a predetermined value to be paid. The weakened zone preferably contains an area with a plurality of weakening lines. Each time an attempt is made to remove or change the image, the weakened area continues to weaken, which causes a premature defect and therefore indicates the attempt to change the document.

Document US2010 / 0084851A1 refers to a security document in the form of a multilayer sheet body for observation with incident and backlight. The security element contains a transparent or semi-transparent area with light that has at least one drawing area with dimensions> 300 | im and at least one bottom area that borders the drawing area and encloses at least partially the drawing area. In this case, the separation between the successive zones, in which a metallic reflection layer is not provided, differs in the drawing area from the background area by 5 to 30%, which allows information to be displayed in light determined by the configuration of the drawing area.

Document DE102007036622A1 discloses a process for the manufacture of a safety feature having a support, in which one or more continuous openings must be made. To this end, the support is provided with a laser modifiable marking substance at least in the vicinity of the openings to be made, such continuous openings are made in the support by the effect of laser radiation and the laser modifiable marking substance It is modified in the vicinity of the openings by the effect of laser radiation. Based on the foregoing, the present invention has the objective of continuing to improve the data carriers of the type mentioned at the beginning with respect to their security against counterfeiting and their visual appearance.

This objective is achieved by means of data support and the manufacturing process with the characteristics of the independent claims. Variants of the invention are subject to the secondary claims.

According to the invention, a generic data carrier, in particular a value document, such as a banknote, an identification card and the like, has a substrate, in which a characteristic zone is formed by a set of curves from of a plurality of curved and / or divergent cutting lines, a visually and / or machine-detectable mark being arranged within this characteristic zone in the form of a drawing, character or code.

The curvature of the cut lines can be constant here as in a circular arc, it can decrease or increase along the cut lines or also undulate as in the case of a wave drawing. The divergent straight cut lines do not have a constant distance from each other, but an increasing distance, the direction, in which the distance increases, within the scope of the invention is arbitrary. Curved cutting lines can run in an equidistant, divergent manner or with a different distance behavior by zones.

In one aspect of the invention, the mark is formed by a set of curves from a plurality of curved and / or divergent cut lines, so that the cut lines of the mark form first cut lines and the lines of cutting located outside the mark of the characteristic zone form second cutting lines, the first and second cutting lines being placed one after the other and presenting a different cutting width. Due to the different cutting widths of the first and second cutting lines and the resulting different surface coverage, the mark within the surrounding transparent zone can be visually detected in light and / or with incident light or can be checked by machine in case of being covered with opaque coating layers.

The width of the first cutting lines may here be larger and also smaller than the width of the second cutting lines. The widest cut lines are wider, in particular at least 10%, at least 20%, at least 50% or even more than 100%, than the narrowest cut lines. In configurations advantageously, the cutting width of the first and second cutting lines is essentially constant in each case. The "essentially constant" formulation takes into account the fact that the cutting width may vary slightly in practice during cutting, by laser even with the same settings and, therefore, cannot be completely constant.

In a preferred variant of the invention, the substrate is provided with a laser modifiable marking substance in the characteristic zone and the cut lines of the characteristic zone, located outside the mark, have a marginal zone modified by the effect of laser radiation If there are also cut lines within the mark, they also advantageously have a marginal area modified by the effect of laser radiation. In other configurations, the marking zone is not cut, in particular it is provided only with marking lines or marking contours, as explained below. The substrate may in particular be provided with a marking substance, whose visible color is variable due to the effect of laser radiation. The cut lines of the characteristic zone, located outside the mark and, if necessary, also the cut lines existing within the mark then have a marginal color zone.

Alternatively or additionally, the substrate may be provided with a marking substance, whose infrared absorption properties, magnetic, electrical or luminescent properties may vary due to the effect of laser radiation. The cut lines of the characteristic zone, located outside the mark, and, if necessary, also the cut lines existing within the mark then have a marginal zone with infrared absorption properties, magnetic, electrical or modified luminescent with respect to its surroundings. The configurations of this type allow to verify by machine, in a complementary and simple way, the authenticity of the characteristic zone. Naturally, variants are also possible that enable a check of authenticity with the naked eye or with simple auxiliary means, for example, a UV lamp. As the marking substance, laser modifiable effect pigments can be advantageously used. Such effect pigments are available to the technician with different properties, in particular with respect to the color of the object, the color change under the effect of the laser, the threshold energy and the necessary laser wavelength. The technician also knows color pigments that do not change (only) their visible color during laser radiation, but their infrared absorption properties, their magnetic, electrical or luminescent properties. The modification of the effect pigments can occur with laser radiation in the ultraviolet, visible or infrared spectral range, for example, with a CO2 laser with a wavelength of 10.6 µm.

In another variant of the invention, also advantageous, a laser modifiable marking substance without pigments is used. The labeling substances without pigments can be applied, for example, as engraving or printing ink, on the substrate or can be integrated into the substrate volume. With the pigment-free marking substances, a highly transparent coating can be created, in which a permanent and high-contrast marking can be made by the effect of the laser at high speed. The labeling substances without pigments can be modified by laser radiation in the ultraviolet, visible or infrared spectral range, for example, with the 10.6 µm radiation of a CO2 laser. In concrete documents WO02 / 101462A1, US4,343,885 and EP0290750B1 there are specific, non-limiting examples of laser modifiable labeling substances without pigments. As the marking substances, modifiable with a CO2 cutting laser, the laser marking compounds indicated in EP1648969B1 can also be used in particular.

According to another aspect of the invention, the mark is formed by an uncut area of the substrate with a set of marking curves from a plurality of marking lines that are connected to the cutting lines outside the mark. Within the framework of this description, the term "marking lines" always identifies generally uncut and only marked lines. The lines, which have both an inner cutting zone and an outer marking zone, are also possible and are identified as beaded cutting lines (colored) or border cutting lines (colored).

In this variant of the invention, the mark can be very well identified as a non-cut part of the substrate and is clearly visible also with incident light through the marking lines.

The substrate is preferably provided with a marking substance, whose visible color is variable by the effect of the laser radiation, so that the marking lines of the mark are colored. Alternatively or additionally, the substrate may also be provided with a marking substance, whose infrared absorption properties, magnetic, electrical or luminescent properties may vary due to the effect of laser radiation, so that the marking lines of the brand have infrared absorption properties, magnetic, electrical or luminescent properties modified with respect to their environment. The substances mentioned above are also considered as labeling substances.

With suitable laser parameters, a color marking line can also be produced without additional marking substance, for example, when the paper fibers are colored by combustion processes or when the opacity of a polymer substrate is changed.

In another advantageous variant of the invention, the mark is formed by an uncut area of the substrate with several dialing contours, located inside each other, of decreasing size. The marking contours conveniently reproduce the shape of the mark and it is no longer necessary to represent all the details of the outer contour of the mark with the progressive reduction of the size. In this configuration, the mark with the marking reason represented can also be clearly identified with incident light.

As in the previous variant of the invention, the substrate may also be provided in this variant with a marking substance, whose visible color and / or whose infrared absorption properties, magnetic, electrical or luminescent properties may vary due to the effect of the laser radiation, so that the marking contours have correspondingly modified properties.

In all configurations there may be a continuous motif opening within the mark in the form of a drawing, character or code. In advantageous configurations, the shape of the pattern opening is interrelated with the shape of the mark. Such interrelation may consist in particular in that the motif opening represents the same motif as the mark, and the spatial position and / or the size of the two motifs represented can be differentiated. The interrelation may also consist in the fact that the first and second motif form in each case only parts of the motif that complement each other to form a general motif, or it can consist of the first and second motif represented complementing each other to form a coherent general picture .

The characteristic zone itself can be designed in all configurations in the form of a drawing, character or code, the shape of the characteristic zone being interrelated with the shape of the mark and / or a motif opening, if necessary, existing. However, the shapes of the characteristic area, the mark and the pattern opening can also be independently selected from each other and can respectively represent independent motifs.

In a variant of the invention, the characteristic zone also has, in addition to the set of curves from a plurality of curved and / or divergent cutting lines, a set of marking curves from a plurality of marking lines, preferably from a plurality of curved and / or divergent marking lines. The cutting lines and the marking lines can enclose any angle at each other. In this variant, the mark is advantageously formed by an uncut area of the support with two sets of marking curves from a plurality of marking lines respectively, the marking lines of a set of marking curves being located following the cutting lines outside the mark and the marking lines of the other set of marking curves being located next to the marking lines outside the mark.

According to another advantageous variant of the invention, the brand profile is provided with a marking contour, in particular a color marking contour, to increase the perceptibility of the marking with the incident light. In all configurations, the cutting lines are preferably configured with a width of 0.05 mm to 1 mm. The center-to-center distance is preferably 0.05 mm to 3 mm, in particular 0.5 mm to 1.5 mm, the center-to-center distance (equidistant cut lines) or variable (divergent cut lines) being constant. . In the case of cutting lines with a marginal zone, the width of the marginal zone on each side is preferably 0.02 mm to 1 mm and the mere marking lines without a cutting zone preferably have a width of 0.05 mm to 3 mm

In an advantageous variant of the invention, the set of curves of the characteristic zone is formed by a plurality of curved and equidistant cutting lines. In another variant of the invention, also advantageous, the set of curves of the characteristic zone is formed by a plurality of straight and divergent cutting lines. In a convenient variant of the invention, the relative arrangement of the set of cut-line curves and of the mark forms another characteristic of authenticity, in which different relative provisions of the set of curves can be selected for different copies of the data carrier. cut lines and brand.

The characteristic area of the data carrier is advantageously reinforced with a sheet element. The sheet element may contain a set of curves that generates a moiré effect with the set of curves of the characteristic zone. For example, the center-to-center distance of the set of curves of the sheet element can be slightly differentiated (for example, a small percentage) from the center-to-center distance of the set of curves of the characteristic zone and / or the two sets of curves they may be turned slightly together (for example, in some degrees).

However, it is also possible to use a characteristic area without additional foil element as a safety element. In the case of data support, it may be in particular a security element, a security paper or a valuable document.

In an advantageous variant of the invention, the characteristic zone forms a transparent zone, in which the mark generates with the incident and / or translucent light a modified visual image with respect to the remaining characteristic zone.

According to another variant of the invention also advantageous, the characteristic area is covered on one or both sides of the data carrier with a low transparency coating layer, so that the mark is not essentially visible with the incident light and stands out only at be seen in light

Finally, according to another advantageous variant of the invention, the characteristic zone can be covered on both sides of the data carrier with an opaque coating layer, so that the mark is not visually visible, but can be detected by machine, by example, by ultrasound.

The invention also relates to a method for manufacturing a data carrier of the type mentioned at the beginning. In this sense, a characteristic zone is formed in the substrate when a set of curves is produced from a plurality of curved and / or divergent cutting lines by laser cutting, producing within the characteristic zone a visually detectable mark and / or by machine in the form of a drawing, character or code. The mark is preferably formed by a set of curves from a plurality of curved and / or divergent cut lines that are produced, as well as the second cut lines of the characteristic area located outside the mark, by the same laser cutting beam, and the first and second cutting lines are produced by a variation of the laser parameters, in particular the laser power and / or the cutting speed, with a different cutting width.

In an advantageous variant of the process, the substrate is provided in the characteristic zone of a laser modifiable marking substance, so that the cut lines located outside the mark are modified by the effect of laser radiation in its marginal zone . The cut lines located within the mark are also preferably modified by the effect of laser radiation in its marginal zone.

According to another advantageous variant of the process, the marking is formed by an uncut area of the substrate, preferably the marking is formed by an uncut area of the substrate with a set of marking curves from a plurality of marking lines that are produced like the cut lines of the transparent zone, located outside the mark, by the same laser beam, and the cut lines located outside the mark and the mark marking lines are produced by a variation of the laser parameters, in particular the laser power and / or the cutting speed.

Other embodiments, as well as advantages of the invention, are explained below by means of the figures. For the representation of such figures, a scale and proportional reproduction was dispensed with in order to achieve greater clarity.

They show:

Fig. 1 a schematic representation of a banknote with a characteristic zone according to the invention; Fig. 2 a detailed plan view of the characteristic area of the banknote of figure 1;

Fig. 3 in (a), a sketch to explain the change in cutting width with laser cutting rays with different maximum powers and in (b), a detailed section of Figure 2 on the edge of the mark;

Fig. 4 a plan view of a transparent area according to another embodiment of the invention;

Fig. 5 a plan view of a transparent area according to another embodiment of the invention;

Fig. 6 a detailed representation, as in Figure 3 (b), on the edge of a mark for another embodiment of the invention;

Fig. 7 schematically, the spatial distribution of the energy of a cutting laser beam to explain the generation of the edge effect;

Fig. 8 a detailed representation at the edge of a mark according to another embodiment of the invention; Fig. 9 a detailed representation at the edge of a mark according to another embodiment of the invention; Fig. 10 in (a) and (b), two copies of a banknote that differ by the relative arrangement of the set of curves of cut lines and the mark; Y

Fig. 11 a data carrier according to another embodiment of the invention, whose mark is not visually visible and can only be detected by machine.

The invention is explained by means of an example of a banknote. Figures 1 and 2 show in this regard a schematic representation of a banknote 10 presenting a characteristic zone according to the invention in the form of a transparent zone 12 represented in more detail in Figure 2.

With reference to the plan view of Figure 2, the transparent zone 12 is formed by a set of curves from a plurality of straight and divergent cut lines 22 that were integrated into the banknote paper 20 by the effect of laser radiation. In the exemplary embodiment, the set of curves of the cutting lines 22 has a cutting width of 0.15 mm and the center-to-center distance of the cutting lines is 0.4 mm at the bottom edge and 1 , 0 mm at the upper edge of the transparent zone 12. The surface coverage of the cutting lines is therefore 15% to 37.5%, so that the transparent zone 12 can be identified with both incident light and in light

The transparent area 12 is configured in the form of a geometric drawing, for example, the oval shown in Figure 2. Its outline is indicated in the figure by a flange 24 drawn with dashed lines and serves only to graphically illustrate the created shape.

Within the transparent zone 12 a mark 30 is disposed which, compared to the surrounding transparent zone 12, has a modified visual appearance with incident and / or backlit light and, therefore, can be identified by an observer. The mark 30 is generally configured in the form of a drawing, character or code and is in the form of a maple leaf in the exemplary embodiment. The contour 34 of the mark 30, drawn with dashed lines, serves only to graphically illustrate its shape and does not necessarily correspond to a contour actually existing on the banknote.

In the exemplary embodiment of Figure 2, the mark 30 is also formed by a set of curves from a plurality of straight and divergent cut lines 32, the cut lines 32 of the mark 30 being perfectly registered below. of the cut lines 22, located outside the mark, of the transparent zone 12. The cut lines 32 within the mark 30 are configured, however, with a cut width of 0.3 mm and, consequently , are wider than the existing cut lines 22 outside the mark. Due to the lower surface coverage of the paper in the area of the 30 mark, the motif formed by the "maple leaf" mark can be clearly identified with incident light and / or light depending on the light and background conditions.

The perfect registration of the cutting lines 22, 32 of different widths is guaranteed by the fact that the cutting lines 22, 32 are produced by laser cutting with the same laser cutting beam in the same operation. The different cutting widths are produced by a variation of the laser parameters, in particular a variation of the laser power and / or the cutting speed, during the cutting process.

By way of illustration, Figure 3 (a) shows the essentially Gaussian spatial distribution of the power W of a cutting laser beam. At a constant cutting speed and with a high maximum power (distribution 40), the energy contribution of the laser radiation to the paper exceeds the threshold energy required to cut the paper 20 in a wide cutting area 42. In the case of a distribution 44 with a lower maximum power, the threshold energy required to cut the paper 20 is exceeded, however, only in a narrower cutting area 46, so that a smaller cutting width is obtained. This makes it possible to vary, as desired, the cutting width of the laser beam along the laser beam guide at a constant cutting speed by means of the possible, almost instantaneous variation of the laser power.

With reference to Figure 2 and the detailed representation of Figure 3 (b), cutting lines 22, 32 can be produced in this manner, which are placed one after the other, in a single operation such as continuous cutting lines and , therefore, perfectly on record. For this purpose, in the transition from the transparent zone 12 (cutting line 22) to the zone of the marking 30 (cutting lines 32) the laser power is increased and, therefore, the cutting width and in the transition from the area of the mark 30 (cut lines 32) to the transparent area 12 (cut lines 22) the laser power is reduced again and, therefore, the cut width. This can be seen very well in the detailed section of Figure 3 (b) which shows the transition from a wide cutting line 32 within the mark 30 (width 42, in this case 0.3 mm) to a cutting line narrow outside the mark (width 46, in this case 0.15 mm) exactly at the edge 34 of the mark 30.

The variation of the cutting width 42, 46 can also be achieved by varying the cutting speed with a constant laser power. In the case of a high cutting speed, the laser radiation acts only in a relatively short way on the paper, so the energy supply to the paper is low. Therefore, the threshold energy required to cut the paper is exceeded only in a narrow cutting area with high laser power. In the case of a lower cutting speed, the laser radiation acts, however, for a longer time on the paper, so that a greater energy contribution to the paper is obtained. Consequently, a wider cutting area is achieved, in which the threshold energy necessary to cut the paper is exceeded. The two parameters laser power and cutting speed can also be varied naturally together and at the same time to have a greater range of variations.

The embodiment of Figure 4 shows a transparent area 50, in which the cutting lines 52 located outside the mark 54 are produced by laser cutting as in Figure 2. Unlike Figure 2 , the set of curves of the transparent area 50 is formed by curved and equidistant cutting lines 52. Within the mark 54, the laser power of the cutting laser was also reduced below the paper cut threshold 20, so that there are no cut lines here. The mark 54 is then maintained as a piece of uncut paper and can be clearly identified especially in light ahead of the hatched transparent area 50.

Figure 5 shows another embodiment of the invention with a transparent area 60, in which the set of curves of the cutting lines located outside the mark 64 is formed by curved and divergent cut lines 62. Figure 5 it also shows the optional marking of the outer contour 66 of the mark 64 with the aid of laser radiation. To this end, banknote paper 20 was provided, as explained in more detail. forward, of a laser modifiable marking substance, whose visible color may vary due to the effect of laser radiation. To produce the outer contour 66, the laser parameters were then adjusted such that the laser energy over the entire diameter of the beam is located below the paper cut threshold, but still above the reaction threshold of the substance of Laser-modifiable marking in an interior area and, therefore, causes a desired color change.

Figure 6 shows in a detailed representation, such as Figure 3 (b), an exemplary embodiment of an advantageous variant of the invention, in which the transparent area 70 and the mark 80 are respectively formed by a plurality of cut lines curved and / or divergent 72 or 82. The cut lines 72, 82 are placed in perfect register following the edge 86 of the mark, the cut width of the cut lines 72 outside the mark 80 having been selected by means of a adequate variation of the laser parameters with a value smaller than the cutting width of the cutting lines 82 within the mark 80, as in the exemplary embodiment of Figure 2. Additionally, both the cutting lines 82 within the mark as the cut lines 72 outside the mark are surrounded on both sides by a color border 74 or 84 perfectly in register.

To produce such a color border 74, 84 perfectly in register with the cut lines, the banknote paper 20 was provided before laser cutting in a certain environment of the transparent area to be produced 70 of a characteristic laser modifiable substance , for example, laser modifiable effect pigments, which show a desired color change, for example, from colorless to red, due to the effect of laser radiation.

The principle of simultaneous and in perfect recording of the cutting lines 72, 82 and the colored edges 74, 84 is illustrated in Figure 7, in which the spatial distribution of power or energy 90 of the beam is schematically shown laser cutting. In an inner zone, the cutting zone 92, the laser energy exceeds the threshold energy E1 that is necessary to cut the paper 20. With E2 the reaction energy of the effect pigments is identified in Figure 7, which when exceeded causes The desired color change. As can be seen directly in the figure, in an outer zone of the laser beam profile, the marking zone 94, the laser energy is located between the reaction energy E2 necessary for the color change and the energy E1 necessary for the cutting , so that a color change of the effect pigments is induced in the marking zone 94, but the support is not cut. Therefore, the banknote paper 20, provided with the laser-modifiable effect pigments, is cut by the laser beam 90 in a central area 72 or 82 corresponding to the cutting area 92 of Figure 7, and additionally color in a marginal area 74, 84 in perfect registration with the cut lines 72 or 82. The width of the colored marginal area 74, 84 corresponds to the width of the marking zone 94 and depends on the profile of the beam, the reaction energy of the effect pigments used and the properties of the paper material. The laser energy outside the cutting zone 92 and the marking zone 94 is located below the reaction threshold of the effect pigments, so that the paper does not vary here.

To better identify the contour of a mark with incident light, the outer contour 66 of the mark 64 can be marked with the aid of laser radiation, as shown in Figure 5. For this purpose, the laser parameters are adjusted in such a way that the laser energy over the entire diameter of the beam is located below the paper cut threshold, but still above the reaction threshold of the effect pigments in an inner zone, for example, by selecting a laser energy between E1 and E2 in Figure 7.

Figure 8 shows another embodiment of a transparent area 100 according to the invention, in which the cutting lines 102 located outside the mark 110 have been produced, as in Figure 6, by laser cutting a paper of banknote 20, provided with a marking substance, together with a colored edge 104 in registration. Unlike the exemplary embodiment of Figure 6, the laser parameters of the cutting laser were varied in the transition into the area of the mark 110 such that the energy supply to the paper is located below the threshold of paper cut 20, but still above the reaction threshold of the marking substance. In this way, the laser beam no longer produces within the mark 110 cutting lines with a colored border, but only color marking lines 112 that at the edge 116 of the mark 110 are placed in perfect registration following the lines cutting 102. This type of transition in registration of color marking lines to color border cutting lines is visually appealing, easy to verify and also represents a difficult obstacle for a counterfeiter.

Another configuration variant is shown in the detailed section of Figure 9. The exemplary embodiment shown here contains a transparent zone 120 which has outside of the mark 130 both a set of curves from cutting lines 122 with a cutting edge. color 124 as a set of marking curves from color marking lines 126 without cutting area. Both the cutting lines 122 and the marking lines 126 can be, for example, curves and equidistant, curves and divergent or straight and divergent. At the edge of the mark 130, both the color marking lines 126 and the color border cutting lines 122 are transformed into perfect registration into color marking lines 132.

In the exemplary embodiment shown, the two types of lines 122, 126 of the transparent zone 120 are arranged alternately, although other sequences are also possible, for example, two cut lines 122 and a marking line 126 respectively. Since the set of marking curves does not contain lines of cutting, said assembly can also be arranged at any angle with respect to the set of curves of the cutting lines.

In all the configurations shown, the relative arrangement of the set of cut-line curves and the mark can form another characteristic of authenticity. For this purpose, the set of cut-line curves for different copies of the data carrier may be arranged differently from the mark and this different arrangement may be correlated with another characteristic of the data carrier, for example, a number serial.

By way of illustration, Figure 10 shows in (a) and (b) two copies of a banknote, in which a transparent area 140 is formed by curved and equidistant cut lines 142, as explained in principle in relation to figure 4. In the area of a mark 144, configured here in the form of the denomination "10" of the banknote, the laser power of the cutting laser was reduced below the paper cut threshold, of so there were no cut lines.

The two copies of banknotes of Figures 10 (a) and (b) are distinguished by the phase position of the curved cut lines 142 with respect to the mark 144. While in Figure 10 (a), the bellies of curvature of the cut lines 142 at the upper edge of the mark 144 are directed to the left (arrangement 1, reference number 146), in figure 10 (b) they are directed to the right (arrangement 2, reference number 148). The phase position of the cutting lines 142 can be selected, for example, in correspondence with the serial number of the respective banknote copy, for example, arrangement 1 for the serial number range 0000001 to 0100000, the arrangement 2 for the serial number range 0100001 to 0200000, then again arrangement 1 for the serial number range 0200001 to 0300000 and so on. By means of a visual or machine check of the phase position of the cut lines 142 and a comparison with the assignment to the serial numbers, the authenticity of the bill can then be verified. In practice, a complicated assignment between serial numbers and the relative arrangement is advantageously selected, so that if the assignment of the serial numbers is kept secret, it is not understandable to a potential forger that provision is assigned to which serial number .

Instead of a different phase position, other characteristics of the set of cut-line curves can also be used for coding, for example, the slope (ascending / descending), the divergence (open up / down or right / left) or the radius of curvature (increasing / decreasing).

If the characteristic area is covered on one or both sides of the data carrier with a low transparency coating layer, the mark cannot be identified practically with incident light, but it is clearly highlighted when the data carrier is seen in light.

The characteristic zone can also be configured so that the mark is completely invisible visually and is detectable only by machine. Figure 11 shows a data carrier according to the invention in the cross-section, in which a transparent sheet 150 is covered on both sides by opaque coating layers 152. The sheet 150 contains a characteristic area 154 with a plurality of lines of curved and / or divergent cutting 156 and a mark 158 arranged within the characteristic zone. The mark 158 may be formed, as in Figure 11, by an uncut area of the sheet 150 or it may be formed in other configurations, for example, by an area with cutting lines of another width.

Since the sheet 150 is covered on both sides with opaque coating layers 152, the cut lines 156 and, therefore, the mark 158 cannot be visually identified. However, the mark 158 can be identified by machine, for example, by an ultrasound sensor 160. It is possible to combine identifiable marks only by machine with a code by means of the relative arrangement of the set of cut-line curves and the mark , as explained in principle in relation to figure 10.

List of reference numbers

10 Banknote

12 Transparent zone

20 Banknote paper

22 Cutting Lines

24 Flange

30 Reason zone

32 Cutting Lines

34 Contour

40 Distribution

42 Cutting area

44 Distribution

46 Cutting area

50 Transparent Zone

Brand cut lines

Transparent zone Cutting lines Brand

Outside contour Transparent zone Cut lines Color border Mark

Cutting lines Color border Brand edge Power distribution Cutting area

Marking zone Transparent zone Cutting lines Color border Mark

Marking lines Marking border Transparent zone Cutting lines Marking lines Marking lines Marking

Marking lines Transparent zone Cutting lines

Brand

, 148 Bellies of curvature Art Print

Coating layers Characteristic area Cutting lines Brand

Ultrasound sensor

Claims (16)

1. Data support, in particular value document, such as a banknote or identification card, with a substrate (20), in which a characteristic area (12; 100) is formed by a set of curves to from a plurality of curved and / or divergent cutting lines (22; 102), a mark (30; 110) being disposed visually and / or by machine in the form of a drawing within the characteristic area (12; 100) , character or code, characterized in that i) the mark (110) is formed by an uncut area of the substrate (20) with a set of marking curves from a plurality of marking lines (112) that are located next to the cutting lines (102) ) outside the mark (110), or ii) the mark (30) is formed by a set of curves from a plurality of curved and / or divergent cut lines (32), so that the cut lines (32) of the mark (30) form first cut lines and cut lines (22), located outside the mark, of the characteristic zone (12) form second cut lines, the first and second cut lines (32, 22) being placed below one of another and presenting a different cutting width. 2. Data carrier according to claim 1, characterized in that in case i), the mark profile (110) is provided with a marking contour, in particular a color marking contour. 3. Data carrier according to one of claims 1 or 2, characterized in that the substrate (20) is provided with a laser modifiable marking substance in the characteristic area (100; 70) and that the cutting lines (102; 72) of the characteristic zone, located outside the mark (110; 80), have a marginal zone (104; 74) modified by the effect of laser radiation, preferably because the substrate (20) is provided of a marking substance, whose visible color may vary due to the effect of laser radiation, and because the cut lines (10; 72) of the characteristic area, located outside the mark (110; 80), have a marginal color zone (104; 74). 4. Data carrier according to claim 3, characterized in that the mark (80) is formed by a set of curves from a plurality of curved and / or divergent cut lines (82), so that the lines cutting lines (82) of the brand form first cutting lines and the cutting lines (72), located outside the mark (80), of the characteristic area form second cutting lines, placing the first and second lines of cutting (82, 72) one after the other and presenting the first cutting lines (82) and preferably also the second cutting lines (72) a marginal area (84, 74) modified by the effect of laser radiation. 5. Data carrier according to at least one of claims 1 to 4, characterized in that a continuous motif aperture is arranged within the mark in the form of a drawing, character or code. 6. Data carrier according to at least one of claims 1 to 5, characterized in that the characteristic zone (120) also has, in addition to the set of curves from a plurality of curved and / or divergent cutting lines ( 122), a set of marking curves from a plurality of marking lines (126), preferably from a plurality of curved and / or divergent marking lines (126). 7. Data carrier according to at least one of claims 1 to 6, characterized in that the cutting lines have a width of 0.05 mm to 1 mm, in particular 0.1 mm to 0.4 mm, and a constant center to center distance of 0.05 mm to 1 mm, in particular 0.3 mm to 0.7 mm. 8. Data carrier according to at least one of claims 1 to 7, characterized in that the set of curves of the characteristic zone (100; 12) is formed by a plurality of equidistant curved cutting lines or a plurality of Straight lines divergent. 9. Data carrier according to at least one of claims 1 to 8, characterized in that the characteristic zone (100; 12) is configured in the form of a drawing, character or code. 10. Data carrier according to at least one of claims 1 to 9, characterized in that the relative arrangement of the set of cut-line curves and of the mark (110; 30) forms another characteristic of authenticity, in which different relative provisions of the set of cut line curves and the mark can be selected for different copies of the data carrier. 11. Data carrier according to at least one of claims 1 to 10, characterized in that the characteristic area (100; 12) is reinforced with a sheet element. 12. Data carrier according to at least one of claims 1 to 11, characterized in that the characteristic zone (100; 12) • forms a transparent area, in which the mark (110; 30) generates a modified visual image with the incident light and / or translucent • it is covered on one or both sides of the data carrier with a low transparency coating layer, so that the mark (110; 30) is not essentially visible with the incident light and only stands out when viewed at light or • it is covered on both sides of the data carrier with an opaque coating layer, so that the mark (110; 30) is not visually visible, but can be detected by machine. 13. Procedure for the manufacture of a data carrier according to claim 1, which has a substrate (20), in which the characteristic zone (12; 100) has to be integrated, being formed in the case of the procedure in the substrate (20) a characteristic zone (12; 100) when a set of curves is produced from a plurality of curved and / or divergent cut lines (22; 102), being disposed within the characteristic zone (12; 100) a mark (30; 110) visually detectable and / or by machine in the form of a drawing, character or code, characterized in that i) the set of curves produced from a plurality of curved and / or divergent cut lines (102) by laser cutting and the mark (110) is formed by an uncut area of the substrate (20) with a set of marking curves from a plurality of marking lines (112) that are located next to the cutting lines (102) outside the mark (110), or ii) the set of curves is produced from a plurality of curved and / or divergent cutting lines (22) by laser cutting and the mark (30) is formed by a set of curves from a plurality of lines curved and / or divergent cutting (32), so that the cutting lines (32) of the mark (30) form first cutting lines and the cutting lines (22), located outside the mark (30) , of the characteristic zone (12) form second cutting lines, the first and second cutting lines (32, 22) being placed one after the other and presenting a different cutting width. 14. Method according to claim 13, characterized in that in case i), the marking lines (112) are produced by the same laser beam as the cutting lines (102), located outside the mark (110) ), of the characteristic zone (100) and why the cutting lines (102) located outside the mark (110) and the marking lines (112) of the mark (110) are produced by a variation of the parameters laser, in particular the power of the laser and / or the cutting speed. 15. Method according to claim 13, characterized in that in case ii), the first cutting lines (32) are produced by the same laser cutting beam as the second cutting lines (22), located outside the mark (30), of the characteristic zone (12) and why the first and second cutting lines (32, 22) are produced by a variation of the laser parameters, in particular the laser power and / or the speed cutting, with a different cutting width. 16. Method according to at least one of claims 13 to 15, characterized in that the substrate (20) is provided in the characteristic zone (100; 70) with a laser modifiable marking substance, so that the lines of cut (102; 72) located outside the mark (110; 80) are modified by the effect of laser radiation in its marginal zone (104; 74), preferably because also the cut lines (82) located within the mark (80) are modified by the effect of laser radiation in its marginal zone (84).