EP2379339B1 - Data carrier with transparent area - Google Patents
Data carrier with transparent area Download PDFInfo
- Publication number
- EP2379339B1 EP2379339B1 EP09799020.4A EP09799020A EP2379339B1 EP 2379339 B1 EP2379339 B1 EP 2379339B1 EP 09799020 A EP09799020 A EP 09799020A EP 2379339 B1 EP2379339 B1 EP 2379339B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- region
- marking
- motif
- cutting lines
- cutting
- 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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Links
- 238000005520 cutting process Methods 0.000 claims description 171
- 239000000126 substance Substances 0.000 claims description 37
- 230000005855 radiation Effects 0.000 claims description 29
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- 238000003698 laser cutting Methods 0.000 claims description 9
- 238000000034 method Methods 0.000 claims description 8
- 230000003247 decreasing effect Effects 0.000 claims description 7
- 230000000007 visual effect Effects 0.000 claims description 7
- 238000004519 manufacturing process Methods 0.000 claims description 6
- 239000011888 foil Substances 0.000 claims description 4
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- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 3
- 239000011248 coating agent Substances 0.000 description 3
- 239000000741 silica gel Substances 0.000 description 3
- 229910002027 silica gel Inorganic materials 0.000 description 3
- 239000004743 Polypropylene Substances 0.000 description 2
- 229920001131 Pulp (paper) Polymers 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 239000000969 carrier Substances 0.000 description 2
- 230000000295 complement effect Effects 0.000 description 2
- 238000007654 immersion Methods 0.000 description 2
- 238000005470 impregnation Methods 0.000 description 2
- -1 polyethylene terephthalate Polymers 0.000 description 2
- 229920000139 polyethylene terephthalate Polymers 0.000 description 2
- 239000005020 polyethylene terephthalate Substances 0.000 description 2
- 229920001155 polypropylene Polymers 0.000 description 2
- 230000008569 process Effects 0.000 description 2
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- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
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Images
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
- B42D25/20—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof characterised by a particular use or purpose
- B42D25/21—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof characterised by a particular use or purpose for multiple purposes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B42—BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
- B42D—BOOKS; BOOK COVERS; LOOSE LEAVES; PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITY FEATURES; PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOT OTHERWISE PROVIDED FOR; DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDED FOR; MOVABLE-STRIP WRITING OR READING APPARATUS
- B42D25/00—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof
- B42D25/20—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof characterised by a particular use or purpose
- B42D25/29—Securities; Bank notes
-
- B42D2035/16—
-
- B42D2035/24—
-
- B42D2035/36—
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B42—BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
- B42D—BOOKS; BOOK COVERS; LOOSE LEAVES; PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITY FEATURES; PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOT OTHERWISE PROVIDED FOR; DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDED FOR; MOVABLE-STRIP WRITING OR READING APPARATUS
- B42D25/00—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof
- B42D25/40—Manufacture
- B42D25/405—Marking
- B42D25/41—Marking using electromagnetic radiation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B42—BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
- B42D—BOOKS; BOOK COVERS; LOOSE LEAVES; PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITY FEATURES; PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOT OTHERWISE PROVIDED FOR; DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDED FOR; MOVABLE-STRIP WRITING OR READING APPARATUS
- B42D25/00—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof
- B42D25/40—Manufacture
- B42D25/405—Marking
- B42D25/43—Marking by removal of material
Definitions
- the invention relates to a data carrier, in particular a document of value such as a bank note, identity card and the like, with a see-through area and a method for producing such a data carrier.
- Data carriers such as security documents, documents of value or identity documents, but also other valuables are often equipped with security features for protection that allow the authenticity of the data carrier to be checked and at the same time serve as protection against unauthorized reproduction.
- see-through security features such as see-through windows in banknotes, are becoming increasingly attractive.
- a film provided with an adhesive layer on one side is applied to a bank note in order to close a previously created through opening of the bank note.
- the present invention is based on the object of further improving data carriers of the type mentioned at the beginning with regard to their security against imitation and their visual appearance.
- a generic data carrier in particular a document of value such as a bank note, identity card and the like, contains a carrier in which a see-through area is formed by a grid of a plurality of parallel cutting lines.
- a motif area with a reflected light and / or transmitted-light changed visual impression arranged, which is in the form of a pattern, characters or coding.
- the motif area is formed by a line grid of a plurality of parallel cutting lines, so that the cutting lines of the motif area form first cutting lines and the cutting lines of the see-through area lying outside the motif area form second cutting lines, the first and second cutting lines adjoining each other and having different cutting widths. Due to the different cutting widths of the first and second cutting lines and the resulting different surface coverage of the carrier, the motif area within the surrounding see-through area can be visually recognized in transmitted light and / or incident light.
- the width of the first cutting lines can be either larger or smaller than the width of the second cutting lines.
- the wider cutting lines are in particular at least 10%, at least 20%, at least 50% or even more than 100% wider than the narrower cutting lines.
- the cutting width of the first and second cutting lines is in each case essentially constant in advantageous configurations. The phrase “essentially constant” takes into account the fact that the cutting width in laser cutting can vary slightly in practice, even with the same settings, and therefore cannot be completely constant.
- the carrier is provided with a laser-modifiable marking substance in the see-through area and at least the cutting lines of the see-through area outside the motif area have an edge area modified by the action of laser radiation. If intersection lines are also present within the motif area, then these also advantageously have one as a result of the action edge area modified by laser radiation.
- the motif area is uncut, in particular only provided with marking lines or marking contours, as explained further below.
- the carrier can in particular be provided with a marking substance, the visible color of which can be changed by the action of the laser radiation.
- the cut lines of the see-through area lying outside the motif area and possibly also the cut lines present within the motif area then have a colored edge area.
- the carrier can 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 the see-through area lying outside the motif area and possibly also the cut lines present within the motif area then have an edge area with infrared-absorbing, magnetic, electrical or luminescent properties that are different from their surroundings. Such designs allow a simple additional machine authenticity check of the see-through area.
- Laser-modifiable effect pigments can advantageously be used as the marking substance.
- Such effect pigments are available to the person skilled in the art with different properties, in particular with regard to their body color, the color change under the action of a laser, the threshold energy and the required laser wavelength.
- Effect pigments, too which when irradiated with a laser do not (only) change their visible color, but also their infrared-absorbing, magnetic, electrical or luminescent properties change are known to the person skilled in the art.
- the modification of the effect pigments can take place with laser radiation in the ultraviolet, visible or infrared spectral range, for example with a CO 2 laser with a wavelength of 10.6 ⁇ m.
- a pigment-free, laser-modifiable marking substance is used.
- Pigment-free marking substances can also be applied to the carrier or introduced into the carrier volume, for example as an engraving or printing ink.
- a coating of high transparency can be produced with pigment-free marking substances, into which a permanent and high-contrast marking can be made by laser action at high speed.
- Pigment-free marking substances can be modified by laser radiation in the ultraviolet, visible or infrared spectral range, for example with the 10.6 ⁇ m radiation of a CO 2 laser.
- Specific, non-limiting examples of pigment-free laser-modifiable marking substances are given in the publications WO 02/101462 A1 , U.S. 4,343,885 and EP 0290 750 B1 specified. Marking substances that can be modified with a CO2 cutting laser can in particular also be those in the publication EP 1648 969 B1 specified laser-markable compositions are used.
- the motif area is formed by an uncut area of the carrier.
- the motif area can then be easily recognized as an uncut part of the carrier against the background of the screened see-through area, especially in transmitted light.
- the motif area is formed by an uncut area of the carrier with a marking line grid made up of a plurality of parallel marking lines which adjoin the cutting lines outside the motif area.
- the motif area can be easily recognized as an uncut part of the carrier in transmitted light and clearly visible through the marking lines also in plan view.
- the carrier is preferably provided with a marking substance, the visible color of which can be changed by the action of the laser radiation, so that the marking lines of the motif area are colored.
- the carrier can also be provided with a marking substance whose infrared-absorbing, magnetic, electrical or luminescent properties can be changed by the action of the laser radiation, so that the marking lines of the motif area are infrared-absorbing, magnetic, electrical or infrared-absorbing, magnetic, electrical or changed in relation to their surroundings have luminescent properties.
- the substances mentioned above can also be used here as marking substances.
- the motif area is formed by an uncut area of the carrier with several nested marking contours of decreasing size.
- the marking contours expediently simulate the shape of the motif area, with the increasing reduction in size no longer having to show all the details of the outer contour of the motif area. Even with such a design, the motif area with the marking motif shown is clearly recognizable in incident light.
- the carrier can also be provided with a marking substance in this variant, its visible The color and / or its infrared-absorbing, magnetic, electrical or luminescent properties can be changed by the action of the laser radiation, so that the marking contours have correspondingly changed properties.
- a continuous motif opening in the form of a pattern, characters or coding can be arranged within the motif area.
- the shape of the motif opening is related to the shape of the motif area.
- Such a context of meaning can in particular consist in the fact that the motif opening represents the same motif as the motif area, it being possible for the spatial position and / or the size of the two motifs shown to differ.
- the context of meaning can also consist in the fact that the first and second depicted motif each only form parts of the motif that complement each other to form an overall motif, or in that the first and second depicted motif complement each other to form a coherent overall picture.
- the see-through area itself can also be designed in all designs in the form of a pattern, characters or a code, wherein the shape of the see-through area can be related to the shape of the motif area and / or a possibly existing motif opening.
- the shapes of the see-through area, motif area and motif opening can, however, also be selected independently of one another and each represent independent motifs.
- the see-through area in addition to the line grid made up of parallel cutting lines, also has a marking line grid made up of a plurality of parallel marking lines.
- the cutting lines and the marking lines can be parallel or any Include angles.
- the motif area is advantageously formed by an uncut area of the carrier with two marking line grids each consisting of a plurality of parallel marking lines, the marking lines of one marking line grid connecting to the cutting lines outside the motif area and the marking lines of the other marking line grid connecting to the marking lines outside the motif area connect.
- the outline of the motif area is provided with a marking contour, in particular a colored marking contour, in order to increase the visibility of the motif area in incident light.
- the cutting lines are preferably designed with a width between 0.05 mm and 1 mm, in particular between 0.1 mm and 0.4 mm and with a distance (center-center) between 0.05 mm and 1 mm.
- the width of the cutting line is preferably between 0.10 and 0.35 mm.
- the transparent area of the data carrier is advantageously reinforced by a film element.
- the film element can be shaped as a patch or as a strip. Alternatively, the film element can also cover the entire surface of the data carrier.
- the film element can be laminated or coextruded onto the carrier, either only on one surface of the carrier or on both surfaces, ie front and / or rear.
- the film element can in particular contain a line raster that generates a moire effect with the line raster of the see-through area, in particular by having the period of the line raster of the film element slightly different from the period of the line grid of the see-through area deviates and / or the two line grids are rotated against each other.
- the film element is matted.
- the matting means that the visual impression of the motif area arranged in the see-through area changes more strongly in incident light and / or transmitted light than without matting.
- the subject area is very good in transmitted light, and almost invisible in incident light.
- the matting of the film can be achieved by applying a matting coating.
- the coating is preferably a pressure-receiving layer.
- the print receiving layer usually comprises a binder and silica gel as main components. The proportion of silica gel depends on the desired thickness of the matting. The more silica gel there is, the more matt the layer becomes.
- the film element itself can also be matt.
- the film element itself can also be matt.
- PET polyethylene terephthalate
- PP polypropylene
- the film element is provided with a metallic layer at least in the area of the motif area arranged in the see-through area.
- the metallic layer is preferably vapor deposited.
- the thickness of the metallic layer is such that it appears opaque to an observer in incident light and at least partially transparent in transmitted light. In incident light, the viewer cannot see the motif area covered by the metallic layer, but very well in transmitted light. In the case of a metallic aspect of aluminum, the thickness is preferably between 30 nm and 40 nm.
- the data carrier can in particular be a security element, a security paper or a value document.
- the invention also includes a method for producing a data carrier of the above-mentioned type.
- a see-through area is formed in the carrier by laser cutting a line grid of a plurality of parallel cutting lines, wherein within the see-through area a motif area with a reflected light and / or Transmitted light changed visual impression is generated, which is formed in the form of a pattern, characters or coding.
- the motif area of the data carrier is preferably formed by a line grid of first parallel cutting lines, which are generated by the same cutting laser beam as the second cutting lines of the see-through area lying outside the motif area.
- the first and second cutting lines are generated by varying the laser parameters, in particular the laser power and / or the cutting speed, with different cutting widths.
- the carrier is provided with a laser-modifiable marking substance in the see-through area before the laser cutting, so that the cutting lines lying outside the motif area are modified in their edge area by the action of the laser radiation. If there are cutting lines within the motif area, then these are also advantageously modified by the action of the laser radiation in their edge area.
- the surface of the carrier is coated with the marking substance, for example by a printing process.
- the marking substance is introduced into the volume of the carrier.
- the carrier material If the carrier is made of paper, the marking substance can advantageously be added to the paper pulp during sheet formation. Another advantageous possibility is to introduce the marking substance into the volume of the paper substrate in an immersion bath or to impregnate the paper substrate with the marking substance in a size press. If the carrier is formed from a plastic film, the marking substance can also be introduced into the volume of the film during the production of the film or subsequently by means of an impregnation step.
- the motif area is formed by an uncut area of the carrier.
- the motif area can be formed by an uncut area of the carrier with a marking line grid with parallel marking lines that are generated by the same laser beam as the cut lines of the see-through area lying outside the motif area.
- the cutting lines lying outside the motif area and the marking lines of the motif area are generated by varying the laser parameters, in particular the laser power and / or the cutting speed.
- the motif area is formed by an uncut area of the carrier with several nested marking patterns of decreasing size.
- the paper webs are in any case so stable that they hold up to a film application of the see-through area. After the film has been applied to the see-through area, the paper webs are stabilized by the film.
- the see-through areas according to the invention are therefore particularly suitable for security elements or documents of value with foil elements or a foil composite document. In some cases, the paper webs are so stable that they can be used without a stabilizing film.
- FIGS. 1 and 2 show a schematic representation of a bank note 10, the one in Fig. 2 has see-through area 12 according to the invention shown in more detail.
- the see-through area 12 on the bank note 10 can be reinforced with a transparent film element (not shown).
- the see-through area 12 is formed by a line grid of a plurality of parallel cutting lines 22 which have been cut into the bank note paper 20 by the action of laser radiation.
- the line grid of the cutting lines 22 has a period length of 0.5 mm with a cutting width of the cutting lines 22 of 0.15 mm, so that the area coverage of the line grid is 30%.
- the see-through area can therefore be seen both from above and through.
- the see-through area 12 is in the form of a geometric pattern, for example that in FIG Fig. 2 formed oval.
- the outline of the see-through area is indicated in the figure by the outline 24 drawn in dashed lines and is only used to graphically illustrate the shape formed.
- a motif area 30 is arranged within the see-through area 12, which, compared to the surrounding see-through area 12, has a changed visual impression in incident light and / or transmitted light and is thus recognizable for the viewer.
- the motif area 30 is generally designed in the form of a pattern, characters or coding and, in the exemplary embodiment, has the shape of a maple leaf.
- the outline 34 of the motif area 30 drawn in dashed lines also serves merely to illustrate the shape of the motif area 30 in the drawing and corresponds not necessarily an actually existing contour on the bank note.
- the motif area 30 itself is also formed by a line grid of a plurality of parallel cutting lines 32, which are perfectly aligned with the cutting lines 22 of the see-through area 12 lying outside the motif area 30.
- the cutting lines 32 of the motif area 30 are, however, formed with a cutting width of 0.3 mm and thus much wider than the cutting lines 22 present outside the motif area.
- the light conditions and the background can be clearly seen in incident light and / or transmitted light. It goes without saying that numerical values other than those mentioned by way of example can also be considered for the period lengths and cutting widths.
- the cutting width of the cutting lines 22 outside the motif area 30 can be between 0.10 mm and 0.20 mm and the cutting width of the cutting lines 22 within the motif area 30 can be between 0.25 mm and 0.35 mm .
- the cutting widths can be increased or decreased accordingly.
- the perfect registration of the cutting lines 22, 32 of different widths is ensured by the cutting lines 22, 32 being laser-cut with the same cutting laser beam can be generated in the same operation.
- the different cutting widths are generated by varying the laser parameters, in particular the laser power and / or the cutting speed, during the cutting process.
- FIG. 3 (a) the essentially Gaussian spatial distribution of the power W of a cutting laser beam is shown.
- the energy input of the laser radiation into the paper exceeds the threshold energy required to cut the paper 20 in a wide cutting area 42 exceeded in a narrower cutting area 46, so that a smaller cutting width results.
- the cutting width of the laser beam along the laser beam guide can be varied as desired by the practically instantaneous variation of the laser power.
- Fig. 2 adjoining cutting lines 22, 32 can be generated in this way in one operation as continuous and thus perfectly matched cutting lines.
- the laser power and thus the cutting width are increased and at the transition from the motif area 30 (cut lines 32) to the see-through area 12 (cut lines 22), the laser power and thus the Cutting width decreased again.
- Fig. 3 (b) illustrates the change in the cutting width due to a change in the cutting speed with constant maximum laser power (distribution 50).
- the laser radiation only acts on the paper for a relatively short time, so that the energy input into the paper is low. Accordingly, the threshold energy required for cutting the paper is exceeded only in a narrow cutting area 52 with high laser power.
- the laser radiation acts longer on the paper, so that a higher energy input into the paper results.
- a wider cutting area 54 results, in which the threshold energy required for cutting the paper is exceeded.
- Adjoining cutting lines 22, 32 can therefore also be generated in one operation as continuous and therefore perfectly matched cutting lines by reducing the cutting speed at the transition from the transparent area 12 (cutting lines 22) to the motif area 30 (cutting lines 32) and thus increasing the cutting width and that at the transition from the motif area 30 (cutting lines 32) to the see-through area 12 (cutting lines 22) the cutting speed is increased again and the cutting width is thus reduced.
- Fig. 4 shows a further exemplary embodiment of a see-through area 60 designed according to the invention, in which the parallel cutting lines 22 lying outside the motif area 64, as in FIG Fig. 2 , created by laser cutting.
- the laser power of the cutting laser is lowered below the cutting threshold of the paper 20, so that no cutting lines were generated there.
- the motif area 64 thus remains as an uncut piece of paper and can be clearly seen against the background of the rasterized see-through area 60, especially in transmitted light.
- Fig. 5 are the see-through area 70 and the motif area 80, as in FIG Fig. 2 , each formed by a line grid of a plurality of parallel cutting lines 72 and 82, the cutting lines 72, 82 connecting to one another and the cutting width of the cutting lines 72 outside the motif area 80 smaller than the cutting width of the cutting lines 82 within the motif area 80 by suitable variation of the laser parameters is chosen.
- both the cutting lines 72 and the cutting lines 82 are each surrounded on both sides by a perfectly matched colored border 74 and 84, as in the detail section of FIG Fig. 6 shown in more detail, which shows the transition from a cutting line 72 to a cutting line 82 at the edge 86 of the motif area 80.
- the banknote paper 20 was provided with laser-modifiable effect pigments prior to laser cutting of a certain area surrounding the transparent area 70 to be created, which when exposed to laser radiation produce a desired color change, for example from colorless to red , demonstrate.
- FIG Fig. 7 The principle of the simultaneous and perfectly matched generation of the cutting lines 72, 82 and the colored edges 74, 84 is shown in FIG Fig. 7 illustrated where again the spatial power or energy distribution 55 of the cutting laser beam is shown schematically.
- the laser energy exceeds the threshold energy E 1 required for cutting the paper 20.
- E 2 is in Fig. 7 denotes the reaction energy of the effect pigments which, when exceeded, results in the desired color change.
- the marking area 58 the laser energy lies between the reaction energy E 2 required for the color change and the energy Ei required for cutting, so that a color change of the effect pigments is induced in the marking area 58 , but the carrier is not cut.
- the bank note paper 20 provided with the laser-modifiable effect pigments is therefore produced by the laser beam 55 in a central region 72 or 82, which corresponds to the cutting region 56 of FIG Fig. 7 corresponds, cut and additionally colored in an edge area 74, 84 in perfect register with the cutting line 72 and 82, respectively.
- the width of the colored edge area 74, 84 corresponds to the width of the marking area 58 and depends on the beam profile, the reaction energy of the effect pigments used and the material properties of the paper. Outside the cut area 56 and the marking area 58, the laser energy lies below the reaction threshold of the effect pigments, so that the paper is not changed there.
- the laser-modifiable effect pigments can be applied to the banknote paper 20, for example printed on, or can be introduced into the volume of the banknote paper 20. This can already be done during paper production by admixing the effect pigments to the paper pulp during sheet formation or subsequently in one go Immersion bath or by impregnation in the size press. Curtain coating and painting processes can also be considered.
- a pigment-free, laser-modifiable marking substance can also be used.
- Such pigment-free marking substances can also be printed onto the respective carrier, for example as an engraving or printing ink, or incorporated into the volume of the carrier.
- Non-pigmented, laser-modifiable coatings can have a very high level of transparency when they are not written on. By exposure to laser radiation, for example a CO 2 laser at 10.6 ⁇ m, permanent and high-contrast edge markings can be produced at high speed.
- the outer contour 88 of the motif area 80 can be marked with the aid of the laser radiation, as in FIG Fig. 8 shown.
- the laser parameters are set in such a way that the laser energy over the entire beam diameter is below the cutting threshold of the paper, but in an inner area is still above the reaction threshold of the effect pigments. This can be done, for example, by choosing a laser energy E between E 1 and E 2 in Fig. 7 or can be achieved by adjusting the cutting speed.
- the color effect of the outer contour 88 can also be designed in such a way that the effect pigments or the pigment-free marking substance is removed in the middle of the line and the underlying layer or the paper surface is revealed.
- Fig. 9 shows a further embodiment of a see-through area 90 according to the invention, in which the parallel cutting lines 92 lying outside of the motif area 100, as in FIG Fig. 5 , by laser cutting a banknote paper 20 provided with a marking substance together with a registered colored border 94.
- the laser parameters of the cutting laser were varied during the transition into the motif area 100 so that the energy input into the paper is below the cutting threshold of the paper 20, but still above the reaction threshold of the marking substance. In this way, the laser beam no longer generates cutting lines with a colored border within the motif area 100, but only colored marking lines 102 which adjoin the cutting lines 92 and are perfectly matched to them.
- a further area 110 is provided within the motif area 100, in which the marking lines 102 merge again into cut lines 92, 94 with colored edges.
- the shape of the further area 110 can be related to the shape of the motif area 100 and, for example, represent the same motif as in FIG Fig. 11 shown as an example.
- Such a design can also be viewed as a see-through area with an annular motif area 112.
- the further embodiment of the Fig. 12 shows a see-through area 120 according to the invention, in which the parallel cutting lines 122 lying outside of the motif area 130, as in FIG Fig. 5 , by laser cutting of a bank note paper 20 provided with a marking substance with a registered colored border 124.
- the cutting lines 122, 124 were interrupted so that the motif area 130 forms an uncut paper area within the see-through area 120.
- the motif area 130 was lasered with a laser energy between the reaction threshold of the marking substance and the cutting threshold of the paper 20 with concentric marking contours 132 provided, the shape of which is modeled on the contour of the motif area.
- the concentric marking contours do not necessarily represent exact, reduced copies of the outer contour of the motif area 130, but can, as in FIG Fig. 12 shown, with decreasing size expediently contain fewer and fewer details of the outer contour.
- a continuous motif opening in the form of a pattern, characters or coding can also be provided within the motif area.
- Fig. 13 shows an example of a modification of the embodiment of FIG Fig. 2 , in which a continuous motif opening 140, here also in the form of a maple leaf, is arranged within the motif area 30.
- the shape of the motif opening 140 can in particular, as in FIG Fig. 13 , are related to the shape of the motif area 30 and / or the shape of the see-through area 12.
- FIG. 9 An embodiment according to a development of the invention, which the at Fig. 9 is related to the design described is in Fig. 14 in supervision and in Fig. 15 Shown in a detail area at the transition from the motif area and the see-through area.
- the embodiment of the Figures 14 and 15 contains a see-through area 150, which outside of the motif area 160 has both a cutting line grid of parallel cutting lines 152 with a colored border 154 and a marking line grid of parallel marking lines 156 which are parallel to the cutting lines 152 of the cutting line grid.
- both the marking lines 156 and the cutting lines 152 merge in perfect register into pure marking lines 162, as already in FIG Fig. 9 explained.
- the two types of lines 152, 156 of the see-through area are arranged alternately, but other sequences, for example of two cutting lines 152 and one marking line 156, are also conceivable. Since the marking line grid does not contain any cutting lines, it can also be arranged at any desired angle to the cutting line grid.
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Description
Die Erfindung betrifft einen Datenträger, insbesondere ein Wertdokument, wie eine Banknote, Ausweiskarte und dergleichen, mit einem Durchsichtsbereich sowie ein Verfahren zum Herstellen eines derartigen Datenträgers. Datenträger, wie Sicherheits-, Wert- oder Ausweisdokumente, aber auch andere Wertgegenstände werden zur Absicherung oft mit Sicherheitsmerkmalen ausgestattet, die eine Überprüfung der Echtheit des Datenträgers gestatten und die zugleich als Schutz vor unerlaubter Reproduktion dienen. Dabei gewinnen zunehmend Durchsichtssicherheitsmerkmale, wie etwa Durchsichtsfenster in Banknoten, an Attraktivität. Zur Fenstererzeugung wird dabei beispielsweise eine auf einer Seite mit einer Kleberschicht versehene Folie auf eine Banknote aufgebracht, um eine zuvor erzeugte durchgehende Öffnung der Banknote zu verschließen. Weiterer Stand der Technik wird in der
Davon ausgehend liegt der vorliegenden Erfindung die Aufgabe zugrunde, Datenträger der eingangs genannten Art hinsichtlich ihrer Nachahmungssicherheit und ihres visuellen Erscheinungsbilds weiter zu verbessern.On this basis, the present invention is based on the object of further improving data carriers of the type mentioned at the beginning with regard to their security against imitation and their visual appearance.
Diese Aufgabe wird durch den Datenträger und das Herstellungsverfahren mit den Merkmalen der unabhängigen Ansprüche gelöst. Weiterbildungen der Erfindung sind Gegenstand der Unteransprüche.This object is achieved by the data carrier and the production method with the features of the independent claims. Further developments of the invention are the subject of the subclaims.
Gemäß der Erfindung enthält ein gattungsgemäßer Datenträger, insbesondere ein Wertdokument, wie eine Banknote, Ausweiskarte und dergleichen, einen Träger, in dem durch ein Linienraster aus einer Mehrzahl paralleler Schnittlinien ein Durchsichtsbereich gebildet ist. Innerhalb des Durchsichtsbereichs ist erfindungsgemäß ein Motivbereich mit einem im Auflicht und/ oder Durchlicht veränderten visuellen Eindruck angeordnet, der in Form eines Musters, von Zeichen oder einer Codierung ausgebildet ist.According to the invention, a generic data carrier, in particular a document of value such as a bank note, identity card and the like, contains a carrier in which a see-through area is formed by a grid of a plurality of parallel cutting lines. According to the invention, a motif area with a reflected light and / or transmitted-light changed visual impression arranged, which is in the form of a pattern, characters or coding.
Der Motivbereich wird durch ein Linienraster aus einer Mehrzahl paralleler Schnittlinien gebildet, so dass die Schnittlinien des Motivbereichs erste Schnittlinien bilden und die außerhalb des Motivbereichs liegenden Schnittlinien des Durchsichtsbereichs zweite Schnittlinien bilden, wobei die ersten und zweiten Schnittlinien aneinander anschließen und unterschiedliche Schnittbreite aufweisen. Durch die unterschiedlichen Schnittbreiten der ersten und zweiten Schnittlinien und der resultierenden unterschiedlichen Flächendeckung des Trägers ist der Motivbereich innerhalb des umgebenden Durchsichtsbereichs im Durchlicht und/ oder Auflicht visuell erkennbar. Die Breite der ersten Schnittlinien kann dabei sowohl größer als auch kleiner als die Breite der zweiten Schnittlinien sein. Die breiteren Schnittlinien sind dabei insbesondere um mindestens 10%, mindestens 20%, mindestens 50% oder sogar um mehr als 100% breiter als die schmäleren Schnittlinien. Die Schnittbreite der ersten und zweiten Schnittlinien ist in vorteilhaften Gestaltungen jeweils im Wesentlichen konstant. Die Formulierung "im Wesentlichen konstant" trägt dabei der Tatsache Rechnung, dass die Schnittbreite beim Laserschneiden in der Praxis auch bei gleichen Einstellungen leicht variieren und daher nicht vollkommen konstant sein kann.The motif area is formed by a line grid of a plurality of parallel cutting lines, so that the cutting lines of the motif area form first cutting lines and the cutting lines of the see-through area lying outside the motif area form second cutting lines, the first and second cutting lines adjoining each other and having different cutting widths. Due to the different cutting widths of the first and second cutting lines and the resulting different surface coverage of the carrier, the motif area within the surrounding see-through area can be visually recognized in transmitted light and / or incident light. The width of the first cutting lines can be either larger or smaller than the width of the second cutting lines. The wider cutting lines are in particular at least 10%, at least 20%, at least 50% or even more than 100% wider than the narrower cutting lines. The cutting width of the first and second cutting lines is in each case essentially constant in advantageous configurations. The phrase “essentially constant” takes into account the fact that the cutting width in laser cutting can vary slightly in practice, even with the same settings, and therefore cannot be completely constant.
In vorteilhaften Gestaltungen der Erfindung ist der Träger im Durchsichtsbereich mit einem lasermodifizierbaren Markierungsstoff versehen und es weisen zumindest die außerhalb des Motivbereichs liegenden Schnittlinien des Durchsichtsbereichs einen durch Einwirkung von Laserstrahlung modifizierten Randbereich auf. Liegen innerhalb des Motivbereichs ebenfalls Schnittlinien vor, so weisen auch diese mit Vorteil einen durch die Einwirkung von Laserstrahlung modifizierten Randbereich auf. In anderen Gestaltungen ist der Motivbereich ungeschnitten, insbesondere lediglich mit Markierungslinien oder Markierungskonturen versehen, wie weiter unten ausgeführt.In advantageous embodiments of the invention, the carrier is provided with a laser-modifiable marking substance in the see-through area and at least the cutting lines of the see-through area outside the motif area have an edge area modified by the action of laser radiation. If intersection lines are also present within the motif area, then these also advantageously have one as a result of the action edge area modified by laser radiation. In other configurations, the motif area is uncut, in particular only provided with marking lines or marking contours, as explained further below.
Der Träger kann insbesondere mit einem Markierungsstoff versehen sein, dessen sichtbare Farbe durch die Einwirkung der Laserstrahlung veränderbar ist. Die außerhalb des Motivbereichs liegenden Schnittlinien des Durchsichtsbereichs und gegebenenfalls auch die innerhalb des Motivbereichs vorliegenden Schnittlinien weisen dann einen farbigen Randbereich auf.The carrier can in particular be provided with a marking substance, the visible color of which can be changed by the action of the laser radiation. The cut lines of the see-through area lying outside the motif area and possibly also the cut lines present within the motif area then have a colored edge area.
Alternativ oder zusätzlich kann der Träger mit einem Markierungsstoff versehen sein, dessen Infrarot-absorbierende, magnetische, elektrische oder lumineszierende Eigenschaften durch die Einwirkung der Laserstrahlung veränderbar sind. Die außerhalb des Motivbereichs liegenden Schnittlinien des Durchsichtsbereichs und gegebenenfalls auch die innerhalb des Motivbereichs vorliegenden Schnittlinien weisen dann einen Randbereich mit gegenüber ihrem Umfeld veränderten Infrarot-absorbierenden, magnetischen, elektrischen oder lumineszierenden Eigenschaften auf. Derartige Gestaltungen gestatten eine einfache ergänzende maschinelle Echtheitsprüfung des Durchsichtsbereichs.Alternatively or additionally, the carrier can 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 the see-through area lying outside the motif area and possibly also the cut lines present within the motif area then have an edge area with infrared-absorbing, magnetic, electrical or luminescent properties that are different from their surroundings. Such designs allow a simple additional machine authenticity check of the see-through area.
Als Markierungsstoff können vorteilhaft lasermodifizierbare Effektpigmente eingesetzt werden. Solche Effektpigmente stehen dem Fachmann mit unterschiedlichen Eigenschaften, insbesondere bezüglich ihrer Körperfarbe, dem Farbumschlag unter Lasereinwirkung, der Schwellenergie und der benötigten Laserwellenlänge zur Verfügung. Auch Effektpigmente, die bei Laserbestrahlung nicht (nur) ihre sichtbare Farbe, sondern ihre Infrarot-absorbierenden, magnetischen, elektrischen oder lumineszierenden Eigenschaften verändern, sind dem Fachmann bekannt. Die Modifikation der Effektpigmente kann mit Laserstrahlung im ultravioletten, sichtbaren oder infraroten Spektralbereich beispielsweise mit einem CO2-Laser einer Wellenlänge von 10,6 µm erfolgen.Laser-modifiable effect pigments can advantageously be used as the marking substance. Such effect pigments are available to the person skilled in the art with different properties, in particular with regard to their body color, the color change under the action of a laser, the threshold energy and the required laser wavelength. Effect pigments, too, which when irradiated with a laser do not (only) change their visible color, but also their infrared-absorbing, magnetic, electrical or luminescent properties change are known to the person skilled in the art. The modification of the effect pigments can take place with laser radiation in the ultraviolet, visible or infrared spectral range, for example with a CO 2 laser with a wavelength of 10.6 μm.
Bei einer anderen ebenfalls vorteilhaften Erfindungsvariante wird ein pigmentfreier lasermodifizierbarer Markierungsstoff eingesetzt. Auch pigmentfreie Markierungsstoffe können, beispielsweise als Stich- oder Druckfarbe, auf den Träger aufgebracht oder in das Trägervolumen eingebracht werden. Mit pigmentfreien Markierungsstoffen lässt sich eine Beschichtung hoher Transparenz erzeugen, in die durch Lasereinwirkung mit hoher Geschwindigkeit eine dauerhafte und kontrastreiche Markierung eingebracht werden kann. Pigmentfreie Markierungsstoffe können durch Laserstrahlung im ultravioletten, sichtbaren oder infraroten Spektralbereich beispielsweise mit der 10,6 µm-Strahlung eines CO2-Lasers modifiziert werden. Konkrete, nicht beschränkende Beispiele für pigmentfreie lasermodifizierbare Markierungsstoffe sind in den Druckschriften
Der Motivbereich wird durch einen ungeschnittenen Bereich des Trägers gebildet. Der Motivbereich ist dann als ungeschnittener Teil des Trägers vor dem Hintergrund des gerasterten Durchsichtsbereichs vor allem im Durchlicht gut zu erkennen.The motif area is formed by an uncut area of the carrier. The motif area can then be easily recognized as an uncut part of the carrier against the background of the screened see-through area, especially in transmitted light.
Gemäß einer weiteren vorteilhaften Erfindungsvariante ist der Motivbereich durch einen ungeschnittenen Bereich des Trägers mit einem Markierungslinienraster aus einer Mehrzahl paralleler Markierungslinien gebildet, die an die Schnittlinien außerhalb des Motivbereichs anschließen. Der Motivbereich ist dabei als ungeschnittener Teil des Trägers im Durchlicht gut zu erkennen und durch die Markierungslinien auch im Aufsicht deutlich sichtbar.According to a further advantageous variant of the invention, the motif area is formed by an uncut area of the carrier with a marking line grid made up of a plurality of parallel marking lines which adjoin the cutting lines outside the motif area. The motif area can be easily recognized as an uncut part of the carrier in transmitted light and clearly visible through the marking lines also in plan view.
Der Träger ist in dieser Erfindungsvariante vorzugsweise mit einem Markierungsstoff versehen, dessen sichtbare Farbe durch die Einwirkung der Laserstrahlung veränderbar ist, so dass die Markierungslinien des Motivbereichs farbig sind. Alternativ oder zusätzlich kann der Träger auch mit einem Markierungsstoff versehen sein, dessen Infrarot-absorbierende, magnetische, elektrische oder lumineszierende Eigenschaften durch die Einwirkung der Laserstrahlung veränderbar sind, so dass die Markierungslinien des Motivbereichs gegenüber ihrem Umfeld veränderte Infrarot-absorbierende, magnetische, elektrische oder lumineszierende Eigenschaften aufweisen. Als Markierungsstoffe kommen auch hier die oben erwähnten Stoffe in Betracht.In this variant of the invention, the carrier is preferably provided with a marking substance, the visible color of which can be changed by the action of the laser radiation, so that the marking lines of the motif area are colored. Alternatively or additionally, the carrier can also be provided with a marking substance whose infrared-absorbing, magnetic, electrical or luminescent properties can be changed by the action of the laser radiation, so that the marking lines of the motif area are infrared-absorbing, magnetic, electrical or infrared-absorbing, magnetic, electrical or changed in relation to their surroundings have luminescent properties. The substances mentioned above can also be used here as marking substances.
Bei einer weiteren vorteilhaften Erfindungsvariante ist der Motivbereich durch einen ungeschnittenen Bereich des Trägers mit mehreren ineinanderliegenden Markierungskonturen abnehmender Größe gebildet. Die Markierungskonturen bilden dabei zweckmäßig die Form des Motivbereichs nach, wobei mit zunehmender Verkleinerung nicht mehr alle Details der Außenkontur des Motivbereichs dargestellt werden müssen. Auch bei einer solchen Gestaltung ist der Motivbereich mit dem dargestellten Markierungsmotiv im Auflicht deutlich erkennbar.In a further advantageous variant of the invention, the motif area is formed by an uncut area of the carrier with several nested marking contours of decreasing size. In this case, the marking contours expediently simulate the shape of the motif area, with the increasing reduction in size no longer having to show all the details of the outer contour of the motif area. Even with such a design, the motif area with the marking motif shown is clearly recognizable in incident light.
Wie bei der vorhergehenden Erfindungsvariante kann der Träger auch bei dieser Variante mit einem Markierungsstoff versehen sein, dessen sichtbare Farbe und/ oder dessen Infrarot-absorbierende, magnetische, elektrische oder lumineszierenden Eigenschaften durch die Einwirkung der Laserstrahlung veränderbar sind, so dass die Markierungskonturen entsprechend veränderte Eigenschaften aufweisen.As with the previous variant of the invention, the carrier can also be provided with a marking substance in this variant, its visible The color and / or its infrared-absorbing, magnetic, electrical or luminescent properties can be changed by the action of the laser radiation, so that the marking contours have correspondingly changed properties.
In allen Gestaltungen kann innerhalb des Motivbereichs eine durchgehende Motivöffnung in Form eines Musters, von Zeichen oder einer Codierung angeordnet sein. In vorteilhaften Gestaltungen steht die Form der Motivöffnung mit der Form des Motivbereichs in einem Sinnzusammenhang. Ein solcher Sinnzusammenhang kann insbesondere darin bestehen, dass die Motivöffnung das gleiche Motiv wie der Motivbereich darstellt, wobei sich die räumliche Lage und/ oder die Größe der beiden dargestellten Motive unterscheiden können. Der Sinnzusammenhang kann auch darin bestehen, dass das erste und zweite dargestellte Motiv jeweils nur Motivteile bilden, die sich zu einem Gesamtmotiv ergänzen, oder darin, dass sich das erste und zweite dargestellte Motiv zu einem schlüssigen Gesamtbild ergänzen.In all designs, a continuous motif opening in the form of a pattern, characters or coding can be arranged within the motif area. In advantageous designs, the shape of the motif opening is related to the shape of the motif area. Such a context of meaning can in particular consist in the fact that the motif opening represents the same motif as the motif area, it being possible for the spatial position and / or the size of the two motifs shown to differ. The context of meaning can also consist in the fact that the first and second depicted motif each only form parts of the motif that complement each other to form an overall motif, or in that the first and second depicted motif complement each other to form a coherent overall picture.
Auch der Durchsichtsbereich selbst kann in allen Gestaltungen in Form eines Musters, von Zeichen oder einer Codierung ausgebildet sein, wobei die Form des Durchsichtsbereichs mit der Form des Motivbereichs und/ oder einer gegebenenfalls vorhandenen Motivöffnung in einem Sinnzusammenhang stehen kann. Die Formen von Durchsichtsbereich, Motivbereich und Motivöffnung können jedoch auch unabhängig voneinander gewählt werden und jeweils eigenständige Motive darstellen.The see-through area itself can also be designed in all designs in the form of a pattern, characters or a code, wherein the shape of the see-through area can be related to the shape of the motif area and / or a possibly existing motif opening. The shapes of the see-through area, motif area and motif opening can, however, also be selected independently of one another and each represent independent motifs.
Bei einer Weiterbildung der Erfindung weist der Durchsichtsbereich neben dem Linienraster aus parallelen Schnittlinien auch ein Markierungslinienraster aus einer Mehrzahl paralleler Markierungslinien auf. Die Schnittlinien und die Markierungslinien können dabei parallel sein oder einen beliebigen Winkel einschließen. Der Motivbereich ist in dieser Weiterbildung mit Vorteil durch einen ungeschnittenen Bereich des Trägers mit zwei Markierungslinienrastern aus jeweils einer Mehrzahl paralleler Markierungslinien gebildet, wobei die Markierungslinien des einen Markierungslinienrasters an die Schnittlinien außerhalb des Motivbereichs anschließen und die Markierungslinien des anderen Markierungslinienrasters an die Markierungslinien außerhalb des Motivbereichs anschließen.In a further development of the invention, in addition to the line grid made up of parallel cutting lines, the see-through area also has a marking line grid made up of a plurality of parallel marking lines. The cutting lines and the marking lines can be parallel or any Include angles. In this development, the motif area is advantageously formed by an uncut area of the carrier with two marking line grids each consisting of a plurality of parallel marking lines, the marking lines of one marking line grid connecting to the cutting lines outside the motif area and the marking lines of the other marking line grid connecting to the marking lines outside the motif area connect.
Nach einer weiteren vorteilhaften Erfindungsvariante ist der Umriss des Motivbereichs mit einer Markierungskontur, insbesondere einer farbigen Markierungskontur, versehen, um die Erkennbarkeit des Motivbereichs im Auflicht zu erhöhen.According to a further advantageous variant of the invention, the outline of the motif area is provided with a marking contour, in particular a colored marking contour, in order to increase the visibility of the motif area in incident light.
In allen Gestaltungen sind die Schnittlinien vorzugsweise mit einer Breite zwischen 0,05 mm und 1 mm, insbesondere zwischen 0,1 mm und 0,4 mm und mit einem Abstand (Mitte-Mitte) zwischen 0,05 mm und 1 mm ausgeführt. Bei einem typischen Abstand von 0,5 mm liegt die Breite der Schnittlinie vorzugsweise zwischen 0,10 und 0,35 mm.In all designs, the cutting lines are preferably designed with a width between 0.05 mm and 1 mm, in particular between 0.1 mm and 0.4 mm and with a distance (center-center) between 0.05 mm and 1 mm. With a typical distance of 0.5 mm, the width of the cutting line is preferably between 0.10 and 0.35 mm.
Der Durchsichtsbereich des Datenträgers ist mit Vorteil durch ein Folienelement verstärkt. Das Folienelement kann als Patch oder als Streifen ausgeformt sein. Alternativ kann das Folienelement auch die gesamte Fläche des Datenträgers bedecken. Das Folienelement kann auf den Träger aufkaschiert oder coextrudiert werden, entweder nur auf einer Oberfläche des Trägers oder auf beiden Oberflächen, d.h. Vorder- und/oder Rückseite. Das Folienelement kann dabei insbesondere ein Linienraster enthalten, das mit dem Linienraster des Durchsichtsbereichs einen Moireeffekt erzeugt, insbesondere indem die Periode des Linienrasters des Folienelements leicht von der Periode des Linienrasters des Durchsichtsbereichs abweicht und/oder die beiden Linienraster gegeneinander gedreht sind.The transparent area of the data carrier is advantageously reinforced by a film element. The film element can be shaped as a patch or as a strip. Alternatively, the film element can also cover the entire surface of the data carrier. The film element can be laminated or coextruded onto the carrier, either only on one surface of the carrier or on both surfaces, ie front and / or rear. The film element can in particular contain a line raster that generates a moire effect with the line raster of the see-through area, in particular by having the period of the line raster of the film element slightly different from the period of the line grid of the see-through area deviates and / or the two line grids are rotated against each other.
In einer weiteren Ausführungsform ist das Folienelement mattiert. Die Mattierung führt dazu, dass der visuelle Eindruck des im Durchsichtsbereich angeordneten Motivbereichs im Auflicht und/ oder Durchlicht sich stärker verändert als ohne Mattierung. Insbesondere ist der Motivbereich im Durchlicht sehr gut, im Auflicht so gut wie nicht mehr sichtbar. Die Mattierung der Folie kann durch Aufbringen einer mattierenden Beschichtung erreicht werden. Vorzugsweise handelt es sich bei der Beschichtung um eine Druckannahmeschicht. Die Druckannahmeschicht umfasst üblicherweise als Hauptkomponenten ein Bindemittel und Kieselgel. Der Kieselgelanteil richtet sich nach der gewünschten Stärke der Mattierung. Je mehr Kieselgel enthalten ist, umso matter wird die Schicht.In a further embodiment, the film element is matted. The matting means that the visual impression of the motif area arranged in the see-through area changes more strongly in incident light and / or transmitted light than without matting. In particular, the subject area is very good in transmitted light, and almost invisible in incident light. The matting of the film can be achieved by applying a matting coating. The coating is preferably a pressure-receiving layer. The print receiving layer usually comprises a binder and silica gel as main components. The proportion of silica gel depends on the desired thickness of the matting. The more silica gel there is, the more matt the layer becomes.
Alternativ zum Aufbringen einer mattierenden Schicht kann auch das Folienelement selbst matt sein. Beispielsweise kommen Polyethylentherephthalat (PET)- oder Polypropylen (PP)-Folie zum Einsatz.As an alternative to applying a matting layer, the film element itself can also be matt. For example, polyethylene terephthalate (PET) or polypropylene (PP) films are used.
In weiteren Ausführungsformen ist das Folienelement zumindest im Bereich des im Durchsichtsbereichs angeordneten Motivbereichs mit einer metallischen Schicht versehen. Vorzugsweise wird die metallische Schicht aufgedampft. Die Dicke der metallischen Schicht ist so bemessen, dass sie einem Betrachter im Auflicht opak erscheint und im Durchlicht zumindest teiltransparent. Im Auflicht kann der Betrachter somit den von der metallischen Schicht überdeckten Motivbereich nicht erkennen, im Durchlicht jedoch sehr gut. Bei einer metallischen Sicht aus Aluminium liegt die Dicke vorzugsweise zwischen 30 nm und 40 nm.In further embodiments, the film element is provided with a metallic layer at least in the area of the motif area arranged in the see-through area. The metallic layer is preferably vapor deposited. The thickness of the metallic layer is such that it appears opaque to an observer in incident light and at least partially transparent in transmitted light. In incident light, the viewer cannot see the motif area covered by the metallic layer, but very well in transmitted light. In the case of a metallic aspect of aluminum, the thickness is preferably between 30 nm and 40 nm.
Es ist jedoch auch möglich, den gerasterten Durchsichtsbereich ohne zusätzliches Folienelement als Sicherheitselement einzusetzen. Bei dem Datenträger kann es sich insbesondere um ein Sicherheitselement, ein Sicherheitspapier oder ein Wertdokument handeln.However, it is also possible to use the screened see-through area as a security element without an additional film element. The data carrier can in particular be a security element, a security paper or a value document.
Die Erfindung enthält auch ein Verfahren zum Herstellen eines Datenträgers der oben genannten Art. Dabei wird in dem Träger ein Durchsichtsbereich gebildet, indem durch Laserschneiden ein Linienraster aus einer Mehrzahl paralleler Schnittlinien erzeugt wird, wobei innerhalb des Durchsichtsbereichs ein Motivbereich mit einem im Auflicht und/ oder Durchlicht veränderten visuellen Eindruck erzeugt wird, der in Form eines Musters, von Zeichen oder einer Codierung ausgebildet wird.The invention also includes a method for producing a data carrier of the above-mentioned type. In this case, a see-through area is formed in the carrier by laser cutting a line grid of a plurality of parallel cutting lines, wherein within the see-through area a motif area with a reflected light and / or Transmitted light changed visual impression is generated, which is formed in the form of a pattern, characters or coding.
Der Motivbereich des Datenträgers wird vorzugsweise durch ein Linienraster aus ersten parallelen Schnittlinien gebildet, die durch denselben Schneidlaserstrahl wie die außerhalb des Motivbereichs liegenden zweiten Schnittlinien des Durchsichtsbereichs erzeugt werden. Die ersten und zweiten Schnittlinien werden dabei durch eine Variation der Laserparameter, insbesondere der Laserleistung und/ oder der Schnittgeschwindigkeit, mit unterschiedlicher Schnittbreite erzeugt.The motif area of the data carrier is preferably formed by a line grid of first parallel cutting lines, which are generated by the same cutting laser beam as the second cutting lines of the see-through area lying outside the motif area. The first and second cutting lines are generated by varying the laser parameters, in particular the laser power and / or the cutting speed, with different cutting widths.
In vorteilhaften Ausgestaltungen wird der Träger vor dem Laserschneiden im Durchsichtsbereich mit einem lasermodifizierbaren Markierungsstoff versehen, so dass die außerhalb des Motivbereichs liegenden Schnittlinien durch die Einwirkung der Laserstrahlung in ihrem Randbereich modifiziert werden. Liegen innerhalb des Motivbereichs Schnittlinien vor, so werden auch diese mit Vorteil durch die Einwirkung der Laserstrahlung in ihrem Randbereich modifiziert.In advantageous embodiments, the carrier is provided with a laser-modifiable marking substance in the see-through area before the laser cutting, so that the cutting lines lying outside the motif area are modified in their edge area by the action of the laser radiation. If there are cutting lines within the motif area, then these are also advantageously modified by the action of the laser radiation in their edge area.
Um den Träger mit einem Markierungsstoff zu versehen, wird der Träger in einer vorteilhaften Erfindungsvariante auf seiner Oberfläche mit dem Markierungsstoff beschichtet, beispielsweise durch ein Druckverfahren. Nach einer anderen ebenfalls vorteilhaften Variante der Erfindung wird der Markierungsstoff in das Volumen des Trägers eingebracht. Dafür stehen je nach Trägermaterial verschiedene Verfahren zur Verfügung. Ist der Träger aus Papier gebildet, kann der Markierungsstoff mit Vorteil schon bei der Blattbildung der Papiermasse beigemischt werden. Eine weitere vorteilhafte Möglichkeit besteht darin, den Markierungsstoff in einem Tauchbad in das Volumen des Papiersubstrats einzubringen oder das Papiersubstrat in einer Leimpresse mit dem Markierungsstoff zu imprägnieren. Ist der Träger aus einer Kunststofffolie gebildet, kann der Markierungsstoff gleichfalls bereits bei der Herstellung der Folie oder nachträglich durch einen Imprägnierungsschritt in das Volumen der Folie eingebracht werden.In order to provide the carrier with a marking substance, in an advantageous variant of the invention the surface of the carrier is coated with the marking substance, for example by a printing process. According to another likewise advantageous variant of the invention, the marking substance is introduced into the volume of the carrier. Various methods are available for this, depending on the carrier material. If the carrier is made of paper, the marking substance can advantageously be added to the paper pulp during sheet formation. Another advantageous possibility is to introduce the marking substance into the volume of the paper substrate in an immersion bath or to impregnate the paper substrate with the marking substance in a size press. If the carrier is formed from a plastic film, the marking substance can also be introduced into the volume of the film during the production of the film or subsequently by means of an impregnation step.
In einer vorteilhaften Verfahrensvariante wird der Motivbereich durch einen ungeschnittenen Bereich des Trägers gebildet. Insbesondere kann der Motivbereich durch einen ungeschnittenen Bereich des Trägers mit einem Markierungslinienraster mit parallelen Markierungslinien gebildet werden, die durch denselben Laserstrahl wie die außerhalb des Motivbereichs liegenden Schnittlinien des Durchsichtsbereichs erzeugt werden. Die außerhalb des Motivbereichs liegenden Schnittlinien und die Markierungslinien des Motivbereichs werden dabei durch eine Variation der Laserparameter, insbesondere der Laserleistung und/oder der Schnittgeschwindigkeit, erzeugt.In an advantageous variant of the method, the motif area is formed by an uncut area of the carrier. In particular, the motif area can be formed by an uncut area of the carrier with a marking line grid with parallel marking lines that are generated by the same laser beam as the cut lines of the see-through area lying outside the motif area. The cutting lines lying outside the motif area and the marking lines of the motif area are generated by varying the laser parameters, in particular the laser power and / or the cutting speed.
Gemäß einer weiteren vorteilhaften Erfindungsvariante wird der Motivbereich durch einen ungeschnittenen Bereich des Trägers mit mehreren ineinanderliegenden Markierungskunturen abnehmender Größe gebildet.According to a further advantageous variant of the invention, the motif area is formed by an uncut area of the carrier with several nested marking patterns of decreasing size.
Bei der Erzeugung des Linienrasters aus der Mehrzahl paralleler Schnittlinien entstehen im Allgemeinen sehr dünne Papierstege. Überraschenderweise wurde jedoch gefunden, dass die Papierstege jedenfalls so stabil sind, dass sie bis zu einer Folienapplikation des Durchsichtsbereichs halten. Nach der Folienapplikation des Durchsichtsbereichs sind die Papierstege durch die Folie stabilisiert. Die erfindungsgemäßen Durchsichtsbereiche eignen sich daher insbesondere für Sicherheitselemente bzw. Wertdokumente mit Folienelementen oder ein Folienverbunddokument. Teilweise sind die Papierstege sogar so stabil, dass sie auch ohne eine stabilisierende Folie eingesetzt werden können.When the line grid is generated from the plurality of parallel cutting lines, very thin paper webs are generally produced. Surprisingly, however, it has been found that the paper webs are in any case so stable that they hold up to a film application of the see-through area. After the film has been applied to the see-through area, the paper webs are stabilized by the film. The see-through areas according to the invention are therefore particularly suitable for security elements or documents of value with foil elements or a foil composite document. In some cases, the paper webs are so stable that they can be used without a stabilizing film.
Weitere Ausführungsbeispiele sowie Vorteile der Erfindung werden nachfolgend anhand der Figuren erläutert, bei deren Darstellung auf eine maßstabs- und proportionsgetreue Wiedergabe verzichtet wurde, um die Anschaulichkeit zu erhöhen.Further exemplary embodiments as well as advantages of the invention are explained below with reference to the figures, in the representation of which a reproduction true to scale and proportion was dispensed with in order to increase the clarity.
Es zeigen:
- Fig. 1
- eine schematische Darstellung einer Banknote mit einem erfindungsgemäßen Durchsichtsbereich,
- Fig. 2
- eine Detailaufsicht auf den Durchsichtsbereich von
Fig. 1 , - Fig. 3
- in (a) eine Skizze zur Erläuterung der Veränderung der Schnittbreite bei Schneidlaserstrahlen mit unterschiedlich hohen Maximalleistungen und in (b) zur Erläuterung der Veränderung der Schnittbreite durch eine Änderung der Schnittgeschwindigkeit bei konstanter maximaler Laserleistung,
- Fig. 4
- eine Aufsicht auf einen Durchsichtsbereich nach einem anderen Ausführungsbeispiel der Erfindung,
- Fig. 5
- eine Aufsicht auf einen Durchsichtsbereich nach einem weiteren Ausführungsbeispiel der Erfindung,
- Fig. 6
- einen Detailausschnitt von
Fig. 5 am Übergang von Motivbereich und Durchsichtsbereich, - Fig. 7
- schematisch die räumliche Energieverteilung eines Schneidlaserstrahls zur Erläuterung der Entstehung des Randeffekts,
- Fig. 8
- eine Aufsicht auf einen Durchsichtsbereich nach einem weiteren Ausführungsbeispiel der Erfindung,
- Fig. 9
- eine Aufsicht auf einen Durchsichtsbereich nach noch einem weiteren Ausführungsbeispiel der Erfindung,
- Fig. 10
- einen Detailausschnitt von
Fig. 9 am Übergang von Motivbereich und Durchsichtsbereich, - Fig. 11 bis 14
- Aufsichten auf Durchsichtsbereiche nach weiteren Ausführungsbeispielen der Erfindung, und
- Fig. 15
- einen Detailausschnitt von
Fig. 14 am Übergang von Motivbereich und Durchsichtsbereich.
- Fig. 1
- a schematic representation of a bank note with a see-through area according to the invention,
- Fig. 2
- a detailed view of the viewing area of
Fig. 1 , - Fig. 3
- in (a) a sketch to explain the change in the cutting width in the case of cutting laser beams with different maximum powers and in (b) to explain the change in the cutting width due to a change in the cutting speed at constant maximum laser power,
- Fig. 4
- a plan view of a see-through area according to another embodiment of the invention,
- Fig. 5
- a plan view of a see-through area according to a further embodiment of the invention,
- Fig. 6
- a detail of
Fig. 5 at the transition between the motif area and the see-through area, - Fig. 7
- schematically the spatial energy distribution of a cutting laser beam to explain the origin of the edge effect,
- Fig. 8
- a plan view of a see-through area according to a further embodiment of the invention,
- Fig. 9
- a plan view of a see-through area according to yet another embodiment of the invention,
- Fig. 10
- a detail of
Fig. 9 at the transition between the motif area and the see-through area, - Figures 11-14
- Top views of see-through areas according to further exemplary embodiments of the invention, and
- Fig. 15
- a detail of
Fig. 14 at the transition between the motif area and the see-through area.
Die Erfindung wird nun am Beispiel einer Banknote erläutert. Die
Mit Bezug auf die Aufsicht der
Der Durchsichtsbereich 12 ist in Form eines geometrischen Musters, beispielsweise des in
Innerhalb des Durchsichtsbereichs 12 ist ein Motivbereich 30 angeordnet, der verglichen mit dem umgebenden Durchsichtsbereich 12 im Auflicht und/ oder Durchlicht einen veränderten visuellen Eindruck aufweist und dadurch für den Betrachter erkennbar ist. Der Motivbereich 30 ist allgemein in Form eines Musters, von Zeichen oder einer Codierung ausgebildet und hat im Ausführungsbeispiel die Form eines Ahornblattes. Auch der gestrichelt eingezeichnete Umriss 34 des Motivbereichs 30 dient lediglich der zeichnerischen Veranschaulichung der Form des Motivbereichs 30 und entspricht nicht notwendigerweise einer tatsächlich vorhandenen Kontur auf der Banknote.A
Auch wenn der Durchsichtsbereich und der Motivbereich in diesem und den nachfolgend beschriebenen Ausführungsbeispielen beispielhaft in Form eines Ovals bzw. eines Ahornblattes dargestellt sind, dienen diese speziellen Formen lediglich der übersichtlichen Darstellung der verschiedenen Ausführungsbeispiele und sind keinesfalls einschränkend zu verstehen.Even if the see-through area and the motif area in this and the exemplary embodiments described below are shown as an example in the form of an oval or a maple leaf, these special shapes only serve to provide a clear representation of the various exemplary embodiments and are in no way to be understood as restrictive.
Bei dem Ausführungsbeispiel der
Die perfekte Passerung der verschieden breiten Schnittlinien 22, 32 wird dadurch sichergestellt, dass die Schnittlinien 22, 32 durch Laserschneiden mit demselben Schneidlaserstrahl im selben Arbeitsgang erzeugt werden. Die unterschiedlichen Schnittbreiten werden durch eine Variation der Laserparameter, insbesondere der Laserleistung und/ oder der Schnittgeschwindigkeit, beim Schneidevorgang erzeugt.The perfect registration of the cutting lines 22, 32 of different widths is ensured by the cutting lines 22, 32 being laser-cut with the same cutting laser beam can be generated in the same operation. The different cutting widths are generated by varying the laser parameters, in particular the laser power and / or the cutting speed, during the cutting process.
Zur Illustration ist in
Mit Bezug auf
Mit Bezug auf
Der Einfachheit wurden die Auswirkungen der Änderung der Laserparameter Leistung und Schnittgeschwindigkeit in
Bei dem Ausführungsbeispiel der
Zusätzlich sind sowohl die Schnittlinien 72 als auch die Schnittlinien 82 jeweils an beiden Seiten von einen perfekt gepasserten farbigen Rand 74 bzw. 84 umgeben, wie in dem Detailausschnitt der
Um einen solchen zu den Schnittlinien perfekt gepasserten farbigen Rand 74, 84 zu erzeugen, wurde das Banknotenpapier 20 vor dem Laserschneiden einer gewissen Umgebung des zu erzeugenden Durchsichtsbereichs 70 mit lasermodifizierbaren Effektpigmenten versehen, die bei Einwirkung von Laserstrahlung eine gewünschte Farbänderung, beispielsweise von farblos zu rot, zeigen.In order to create such a
Das Prinzip der gleichzeitigen und perfekt gepasserten Erzeugung der Schnittlinien 72, 82 und der farbigen Ränder 74, 84 ist in
Das mit den lasermodifizierbaren Effektpigmenten versehene Banknotenpapier 20 wird daher durch den Laserstrahl 55 in einem zentralen Bereich 72 bzw. 82, der dem Schnittbereich 56 der
Die lasermodifizierbaren Effektpigmente können auf das Banknotenpapier 20 aufgebracht, beispielsweise aufgedruckt werden, oder können in das Volumen des Banknotenpapiers 20 eingebracht werden. Dies kann bereits bei der Papierherstellung durch Beimischung der Effektpigmente zur Papiermasse bei der Blattbildung geschehen oder auch nachfolgend in einem Tauchbad oder durch eine Imprägnierung in der Leimpresse. Auch Curtain Coating und Streichverfahren kommen in Betracht.The laser-modifiable effect pigments can be applied to the
Anstelle der beispielhaft genannten Effektpigmente kann auch ein pigmentfreier lasermodifizierbarer Markierungsstoff eingesetzt werden. Auch solche pigmentfreie Markierungsstoffe können, beispielsweise als Stich- oder Druckfarbe, auf den jeweiligen Träger aufgedruckt oder in das Volumen des Trägers eingebracht werden. Nicht pigmentierte lasermodifizierbare Beschichtungen können im unbeschrifteten Zustand eine sehr hohe Transparenz aufweisen. Durch Einwirkung von Laserstrahlung, beispielsweise eines CO2-Lasers bei 10,6 µm, lassen sich mit hoher Geschwindigkeit dauerhafte und kontrastreiche Randmarkierungen erzeugen.Instead of the effect pigments mentioned by way of example, a pigment-free, laser-modifiable marking substance can also be used. Such pigment-free marking substances can also be printed onto the respective carrier, for example as an engraving or printing ink, or incorporated into the volume of the carrier. Non-pigmented, laser-modifiable coatings can have a very high level of transparency when they are not written on. By exposure to laser radiation, for example a CO 2 laser at 10.6 µm, permanent and high-contrast edge markings can be produced at high speed.
Neben der Modifikation der Effektpigmente bzw. des pigmentfreien Markierungsstoffs durch die Laserstrahlung selbst kommt auch eine Modifikation der Effektpigmente durch die beim Laserstrahlschneiden erzeugte Wärme infrage. Auf diese Weise kann der modifizierte Randbereich der Schnittlinien sogar größer als die Strahlausdehnung sein.In addition to the modification of the effect pigments or the pigment-free marking substance by the laser radiation itself, a modification of the effect pigments by the heat generated during laser cutting is also possible. In this way, the modified edge area of the cutting lines can even be larger than the beam extension.
Um den Umriss 86 des Motivbereichs 80 im Auflicht besser erkennbar zu machen, kann die Außenkontur 88 des Motivbereichs 80 mithilfe der Laserstrahlung markiert werden, wie in
Das Erscheinungsbild der Schnittlinien 92 mit farbigem Rand 94 und den anschließenden Markierungslinien 102 im Bereich des Umrisses 106 des Motivbereichs ist in dem Detailausschnitt der
Bei der in
Es versteht sich, dass entlang der Laserstrahlführung in einem Durchsichtsbereich auch mehrere Übergänge zwischen Markierungslinien 102 und farbig berandeten Schnittlinien 92, 94 vorgesehen sein können. Derartige Gestaltungen können allgemein als Durchsichtsbereich mit einem Motivbereich betrachtet werden, der nicht notwendigerweise zusammenhängend oder konvex ist, also beispielsweise aus mehreren nicht zusammenhängenden Teilbereichen mit Löchern besteht. Auch bei solchen Ausgestaltungen kann die Kontur des Motivbereichs bzw. deren Teilbereiche mit Laserstrahlung markiert werden, wie bereits bei
Das weitere Ausführungsbeispiel der
Dann wurde der Motivbereich 130 mit dem Laser mit einer Laserenergie, die zwischen der Reaktionsschwelle des Markierungsstoffs und der Schneideschwelle des Papiers 20 liegt, mit konzentrischen Markierungskonturen 132 versehen, deren Form der Kontur des Motivbereichs nachgebildet ist. Die konzentrischen Markierungskonturen stellen dabei nicht notwendigerweise exakte, verkleinerte Kopien der Außenkontur des Motivbereichs 130 dar, sondern können, wie in
Bei allen gezeigten Ausgestaltungen kann innerhalb des Motivbereichs zusätzlich eine durchgehende Motivöffnung in Form eines Musters, von Zeichen oder einer Codierung vorgesehen sein.
Ein Ausführungsbeispiel nach einer Weiterbildung der Erfindung, das der bei
Das Ausführungsbeispiel der
Im gezeigten Ausführungsbeispiel sind die beiden Linienarten 152,156 des Durchsichtsbereichs alternierend angeordnet, es sind jedoch auch andere Abfolgen, beispielsweise von je zwei Schnittlinien 152 und einer Markierungslinie 156, denkbar. Da das Markierungslinienraster keine Schnittlinien enthält, kann es auch in einem beliebigen Winkel zu dem Schnittlinienraster angeordnet sein.In the exemplary embodiment shown, the two types of
Claims (17)
- A data carrier (10), especially a value document, such as a banknote, identification card and the like, having a support in which a see-through region (12) is formed by a line grid composed of a plurality of parallel cutting lines (22), there being arranged within the see-through region a motif region (30) having a visual impression that is changed in reflected light and/ or transmitted light and that is developed in the form of a pattern, characters or a code, wherein the motif region is formed eithera) by a line grid composed of a plurality of parallel cutting lines (32), such that the cutting lines of the motif region form first cutting lines, and the cutting lines (22) of the see-through region that lie outside the motif region form second cutting lines, the first and second cutting lines connecting to each other and exhibiting different cutting widths, orb) by an uncut region of the support (10).
- The data carrier according to claim 1, characterized in that the support is provided in the see-through region with a laser-modifiable marking substance, and in that the cutting lines of the see-through region that lie outside the motif region exhibit an edge region (74) that is modified by the action of laser radiation, preferably, that the support is provided with a marking substance whose visible color is changeable by the action of laser radiation, and in that the cutting lines of the see-through region that lie outside the motif region exhibit a colored edge region.
- The data carrier according to claim 2, characterized in that the motif region is formed by a line grid composed of a plurality of parallel cutting lines, such that the cutting lines of the motif region form first cutting lines, and the cutting lines of the see-through region that lie outside the motif region form second cutting lines, the first and second cutting lines connecting to each other, and the first cutting lines and preferably also the second cutting lines exhibiting an edge region that is modified by the action of laser radiation.
- The data carrier according to claim 1, characterized in that in case b) the motif region is formed by an uncut region of the support having a marking line grid composed of a plurality of parallel marking lines that connect to the cutting lines outside the motif region.
- The data carrier according to claim 4, characterized in that the support is provided with a marking substance whose visible color is changeable by the action of laser radiation, and in that the marking lines (156) of the motif region are colored.
- The data carrier according to claim 4 or 5, characterized in that the support is provided with a marking substance whose infrared-absorbing, magnetic, electric or luminescent properties are changeable by the action of laser radiation, and in that the marking lines of the motif region exhibit changed infrared-absorbing, magnetic, electric or luminescent properties compared with their surroundings.
- The data carrier according to claim 2, characterized in that in case b) the motif region is formed by an uncut region of the support having multiple nested marking contours of decreasing size, preferably that the support is provided with a marking substance whose visible color is changeable by the action of laser radiation, and in that the marking contours of the motif region are colored.
- The data carrier according to at least one of claims 1 to 7, characterized in that a through motif opening (140) is arranged within the motif region in the form of a pattern, characters or a code.
- The data carrier according to at least one of claims 1 to 8, characterized in that the see-through region exhibits, in addition to the line grid composed of parallel cutting lines, a marking line grid composed of a plurality of parallel marking lines, preferably that the motif region is formed by an uncut region of the support having two marking line grids each composed of a plurality of parallel marking lines, of which the marking lines of one marking line grid connect to the cutting lines outside the motif region, and the marking lines of the other marking line grid connect to the marking lines outside the motif region.
- The data carrier according to at least one of claims 1 to 9, characterized in that the contour of the motif region is provided with a marking contour, especially a colored marking contour.
- The data carrier according to at least one of claims 1 to 10, characterized in that the cutting lines exhibit a width between 0.05 mm and 1 mm, especially between 0.1 mm and 0.4 mm, and a center-to-center distance between 0.05 mm and 1 mm, especially between 0.3 mm and 0.7 mm.
- The data carrier according to at least one of claims 1 to 11, characterized in that the see-through region is reinforced by a foil element, preferably, that the foil element includes a line grid that, with the line grid of the see-through region, produces a moire effect.
- The data carrier according to at least one of claims 1 to 12, characterized in that the data carrier is a security element, a security paper or a value document.
- A method for manufacturing a data carrier (10) according to one of claims 1 to 13, that exhibits a support into which a see-through region (12) is to be introduced, in which a see-through region is formed in the support in that a line grid composed of a plurality of parallel cutting lines (22) is produced by laser cutting, there being produced within the see-through region a motif region (30) having a visual impression that is changed in reflected light and/or transmitted light and that is developed in the form of a pattern, characters or a code, wherein the motif region is formed eithera) by a line grid composed of first parallel cutting lines (32) that are produced by the same cutting laser beam as the second cutting lines of the see-through region lying outside the motif region, and in that the first and second cutting lines are produced having different cutting widths by a variation in the laser parameters, especially in the laser power and/or the cutting speed, orb) by an uncut region of the support (10).
- The method according to claim 14, characterized in that the support is provided in the see-through region with a laser-modifiable marking substance, such that the cutting lines that lie outside the motif region are modified in their edge region by the action of laser radiation.
- The method according to claim 14 and 15, characterized in that also the cutting lines that lie within the motif region are modified in their edge region by the action of laser radiation.
- The method according to claim 14 or 15, characterized in that in case b) the motif region is formed by an uncut region of the support having a marking line grid having parallel marking lines that are produced by the same laser beam as the cutting lines of the see-through region that lie outside the motif region, and in that the cutting lines that lie outside the motif region and the marking lines of the motif region are produced by a variation in the laser parameters, especially in the laser power and/or the cutting speed, or that the motif region is formed by an uncut region of the support having multiple nested marking contours of decreasing size.
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PCT/EP2009/008776 WO2010072329A1 (en) | 2008-12-22 | 2009-12-09 | Data media having inspection area |
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-
2009
- 2009-03-03 DE DE102009011424A patent/DE102009011424A1/en not_active Withdrawn
- 2009-12-09 ES ES09799020T patent/ES2897514T3/en active Active
- 2009-12-09 EP EP09799020.4A patent/EP2379339B1/en active Active
- 2009-12-09 BR BRPI0918341-8A patent/BRPI0918341B1/en not_active IP Right Cessation
- 2009-12-09 RU RU2011129698/12A patent/RU2508203C2/en active
- 2009-12-09 CA CA2748091A patent/CA2748091A1/en not_active Abandoned
- 2009-12-09 WO PCT/EP2009/008776 patent/WO2010072329A1/en active Application Filing
-
2011
- 2011-07-20 ZA ZA2011/05340A patent/ZA201105340B/en unknown
Also Published As
Publication number | Publication date |
---|---|
ZA201105340B (en) | 2012-03-28 |
ES2897514T3 (en) | 2022-03-01 |
BRPI0918341B1 (en) | 2021-03-09 |
RU2011129698A (en) | 2013-01-27 |
CA2748091A1 (en) | 2010-07-01 |
RU2508203C2 (en) | 2014-02-27 |
BRPI0918341A2 (en) | 2016-09-06 |
WO2010072329A1 (en) | 2010-07-01 |
EP2379339A1 (en) | 2011-10-26 |
DE102009011424A1 (en) | 2010-07-01 |
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