DE102016112672A1 - Method for producing a layer arrangement for a security document and security document - Google Patents

Abstract

Method for producing a layer arrangement for a security document, comprising the following steps:
- Providing a semifinished product with a layer arrangement (1) with a stack of layers of plastic material;
- Producing a recess (5) in an outer layer of the layer assembly (1) by means of a processing device;
- Printing a printed image (2) in the region of the recess (5) by means of a printing device and
- Producing an internal printed image, in which case a further layer of plastic material is applied to the outer layer, such that at least the recess (5) with the printed image (2) is covered by the further layer, and wherein the inner printed image of a front - And / or a rear side of the layer assembly (1) through at least one of the layers is visible from the outside.

Description

The invention relates to a method for producing a layer arrangement for a security document and a security document.

background

Security documents are known in which layer arrangements are used, wherein in the layer arrangement a plurality of layers of plastic material are stacked on top of each other, for example by laminating several layers of the same or different plastic films. Such security documents are produced for example in the form of a card, for example a plastic card. An example are so-called smart cards or smart cards, in which a chip is integrated in the plastic card.

From the document EP 2 307 614 B1 a method for producing a security element with double-coated coating is known. The security document is, for example, a banknote, a security or a card. When manufacturing the security element, an opening is produced in a substrate, which is closed on one side with an at least partially translucent film.

In the document DE 10 2014 000 133 B4 For example, a method of processing a planar, at least single-ply substrate is disclosed. A window opening in the substrate serves to receive electronic components, a chip or the like. The substrate may be formed as a multilayer plastic substrate.

In the document WO 98 150883 A1 a method for producing a plastic card with a layer structure is described. In the layer structure, a flat coil and a chip connected to it are embedded.

Summary

The object of the invention is to specify improved technologies for producing a layer arrangement for a security document and a security document with which an individualization of the security document can be efficiently provided, for example for personalization, in a manner suitable also for mass production.

As a solution, a method for producing a layer arrangement for a security document as well as a security document according to independent claims 1 and 15 are provided. Alternative embodiments are the subject of dependent claims.

In one aspect, there is provided a method of making a security document layer assembly in which a semifinished product having a layer arrangement with a stack of layers of plastic material is provided. In an outer layer of the layer arrangement, a recess is produced by means of a processing device. In the region of the recess, a printed image is printed by means of a printing device. An inner printed image is produced, in which case a further layer of plastic material is applied to the outer layer, such that at least the recess with the printed image is covered by the further layer. The inner printed image can be viewed from the outside through at least one of the layers from the front and / or back of the layer arrangement.

According to a further aspect, a security document with a layer arrangement is provided, which has an internal printed image, which can be viewed from outside from at least one of the front and / or back of the layer arrangement.

The security document may be, for example, a passport or other identity document, for example a plastic or plastic card. Alternatively, the layer arrangement can be integrated into a passport or security document of another type.

The inner printed image provides a printed image embedded in the layer arrangement, which is integrated into the layer arrangement with the stack of layers of plastic material and can be viewed from the outside, for example through transparent film sections of the layers overlapping with the printed image.

The layers in the flat stack of the semifinished product may consist of one or more different plastic materials. It can be provided that one or more layers are formed from a plastic film.

The stack of layers of the semifinished product can be designed as a stack of superimposed layers, which are secured against relative movement to one another, in particular slippage, for example by means of stapling and / or staples.

A portion of the layers or all layers of the stack of semifinished product may be laminated. The lamination takes place for example in a hot press method known in the manufacture of security documents, in which thermoplastics are pressed together under elevated temperatures, so that a monobloc is formed. However, the joining of the stacked layers can also take place by means of the use of adhesive and / or by means of plastic welding.

The recess may be at least partially made as a breakthrough in the outer layer, wherein the printed image can then be printed on an underlying layer. The print image may be printed in whole or in part on the underlying layer. The printed image may be partially printed on the underlying layer and partly on the outer layer in the region of the recess. The breakthrough may extend through multiple layers.

The recess may be at least partially made as a recess in the outer layer, wherein the printed image can be printed in the region of the recess. The print image can be partially or completely made in the recess of the outer layer by means of printing. In contrast to the breakthrough, the outer layer is not continuously removed during the production of the depression.

The recess can be produced by means of mechanical processing in the outer layer. A mechanical processing can be carried out for example by means of milling, planing and / or engraving. Alternatively or additionally, a stamping with an engraving for producing the recess can be used.

The recess can be produced by means of laser processing in the outer layer. The laser processing can be combined with the mechanical machining to produce the recess.

The printed image can be printed at least partially detecting a recess edge surrounding the recess. In this embodiment, the material used for producing the printed image, for example a printing ink, is partially also printed on the recessed edge surrounding the recess. In this way, in one embodiment, an image disturbance spot recognizable by means of an optical read-out device and / or with the naked eye can be produced in the print image.

The recess edge surrounding the recess can be made at least partially with sloping walls.

The print image can be made with a print layer thickness that is less than a height of the recess. The layer thickness of the printed image may be substantially equal to the height of the recess. In an alternative embodiment, the printing layer thickness is higher than the height of the recess. In these or other embodiments, the printed image may completely or partially cover the surface of the recess.

The recess edge surrounding the recess can be produced at least in sections following an outer print image contour. The recess edge follows in terms of its course in this case at least partially the outer contour of the printed image, wherein the outer edge of the printed image and the recess edge can abut each other. Alternatively, the two edges may be spaced apart.

The printed image can be produced with a security document individualizing image disturbance. The image defects can be evaluated by means of an optical reading device, for example with the aid of a camera and a downstream digital image analysis. It can be provided that the image disturbances individualizing the security document are visible to the naked eye. The image glitches can be persons identifying, for example, by the fact that when reading with the help of an optical read-out, the image disturbance determined in this case can be assigned to a personal data record. The image defects may extend in the various embodiments over a partial area of the printed image or over the entire printed image.

In the region of the recess, the security document can be used to produce individualized impurities in the layer arrangement which are assigned to the image defects. The defects in the region of the recess can be produced by means of mechanical processing and / or laser processing. For example, the impurities can be produced as surface-side recesses in the region of the recess. In this way, in one embodiment associated image defects arise when the printed image is printed, for example, the fact that the impurities in the outer layer and / or an underlying layer of the layer arrangement lead to a different course of the printed substrate than outside the impurities. In this embodiment, the image defects can arise automatically due to the previously produced defects or defects in the region of the recess in the layer material. The image defects associated with the defects can be designed in accordance with their course and / or their shape of the defects. The impurities may be made on a surface of the outer layer and / or on the surface of an underlying layer. The layer of the layer arrangement in which the impurities are produced can consist of an opaque layer material.

In the layer arrangement, an electronic storage medium can be stored, and in the electronic storage medium can be stored readable electronic data indicating information about the image defects and / or the impurities. The electronic data may, for example, indicate by machine and / or with the naked eye readable properties of the impurities and / or the image defects, for example a course. If the layer arrangement is integrated into a security document, the electronic data can be read from the storage medium when the security document is read out, for example from the chip of a chip card. Furthermore, the printed image can be optically read out, whereupon the image defects are determined. Afterwards, the electronic data read out and the specific image defects can be compared in order to carry out an examination of the security document. As an alternative to introducing the storage medium during production of the layer arrangement, provision may be made for the electric storage medium to be introduced during the further processing of the layer arrangement for producing a security document. The storage of the electronic data can be carried out, for example, as part of a personalization of the security document.

The method can provide the following steps: generating electronic processing data by means of a data processing device, whereby personal and / or non-personal data are processed and an arrangement of the impurities that individualises the security document is determined; Transmitting the electronic processing data to the processing device; and producing the defects according to the security document individualizing arrangement by means of the processing device. When generating the electronic processing data can be carried out by determining the arrangement of the impurities, a coding of personal and / or non-personal data by the security document individualizing the arrangement of the impurities is determined in dependence on these data. The personal and / or non-personal data can thus be converted into an individualizing arrangement of impurities. This arrangement is then manufactured by means of the processing device in the layer arrangement. The defects can lead to associated image defects when applying the printed image. As a result, the individualizing arrangement of the impurities can be converted into an associated arrangement of image defects. Supplementary image defects may be provided which are not related to an associated defect. Such additional image defects can be produced as part of the printing of the printed image. The electronic processing data and / or electronic data obtained therefrom can be stored in the storage medium.

Alternatively or additionally, the method can provide the following steps: generating electronic print data by means of the data processing device, whereby the personal and / or the non-personal data are processed and a training of the image disturbances that individualises the security document is determined; Transmitting the electronic print data to the printing device; and producing the image defects according to the security document individualizing arrangement when printing by means of the processing device. The personal and / or the non-personal data determine the security document individualizing training of Bildstörstellen, so that the data are encoded in an arrangement and form of the Bildstörstellen. Image defects can be produced, for example, by means of a higher or a lower print material output, a changed color and / or the use of different print patterns in the area of the defects when the printed image is applied. This may relate to the overlap region with and / or regions outside the previously produced impurities.

The layer arrangement produced according to the alternative embodiments can be subjected to further processing to produce a security document, for example a plastic or plastic card, either with or without a chip. Technologies for integrating the layer arrangement into such a card or other security document are known as such in various embodiments. The layer arrangement can in this case be supplemented, for example, on the front and / or the back by one or more further layers, for example by means of lamination of plastic material layers.

Description of exemplary embodiments

In the following, further embodiments will be explained with reference to figures of a drawing. Hereby show:

1 a schematic representation for producing a layer structure with a printed image for a plastic card;

2 a schematic representation of an alternative method for producing a layer structure with a printed image for a plastic card;

3 a schematic representation of another alternative method for producing a layer structure with a printed image for a plastic card;

4 a schematic representation of a plastic card, in which a viewing window is provided in a card body, which is formed as a layer structure;

5 a schematic representation of a plastic card, in which in a card body, which is formed as a layer structure, a viewing window is provided, wherein herein a printed image is surrounded by an edge, which formed following an outer contour of the printed image;

6 a schematic representation of another plastic card, in which image defects are formed following a contour in the region of the printed image;

7 a schematic representation of an arrangement with parts of a device for producing a plastic card and

8th a schematic representation of a plastic card having a chip in addition to the inner printed image.

1 shows a schematic representation of a method for producing a layer structure 1 with a printed image 2 for a security document, for example a plastic card. The layer structure is in the embodiment shown in a simple embodiment with layers 3 . 4 provided. These are layers, each made of a plastic material. The layer structure 1 can be provided as a single sheet or as a continuous material from the roll for further processing. As part of further processing is in the layer 3 a recess 5 made by the layer 3 in the region of the recess 5 Will get removed. For producing the recess 5 Mechanical or non-mechanical methods may be used, in particular micro-milling, micro-planing, micro-engraving and / or laser-machining. In particular, when using the mechanical processing methods such as micro-milling or micro planing sidewalls 6 . 7 the recess 5 be formed as inclined wall sections, which is in 1 is shown. Alternatively, the side walls 6 . 7 essentially standing upright on the layer 4 be educated.

The following is in the area of the recess 5 on the shift 4 a printed image 2 applied by a printing process. For example, an inkjet printing process can be used. In this way, in the recess 5 creates an incoming print image. The height of the applied printing material (ink) may be less than 20 μm. The height of the printed image 2 may be less than or about equal to the layer thickness of the layer 3 be. In one embodiment, the layer is 3 around an opaque layer. The layer 4 may be formed as a transparent or opaque layer, wherein in transparent training the printed image 2 through the layer 4 is visible through.

The printed image 2 can the recess 5 in their entire width or in parts grasp what is in 1 shown is where the print image 2 from one edge 8th is surrounded, a region of the recess 5 that is not printed.

The layer structure thus produced 1 can then be supplied to the further processing for producing a plastic card. This will be on the cover page 9 of the layer structure 1 at least one further layer laminated, so that the printed image 2 is covered. Further lamination steps can be provided to finally produce the plastic card with an integrated or internal printed image, which can be viewed from one or both sides of the plastic card through transparent layers.

2 shows a schematic representation of an alternative method for producing a layer structure for a plastic card. For same features are in 2 the same reference numerals as in 1 used.

During or after making the recess 5 become in the process after 2 in the region of the recess 5 on a surface 10 the layer 4 Target error or nominal fault locations 11 . 12 generated, which are formed in the illustrated embodiment as depressions, which may for example have a V-shape in cross section. The target fault locations 11 . 12 can be prepared by mechanical processing, in particular by means of micro-milling and / or micro planing. Alternatively or additionally, micrograving and / or laser processing can be used. The different processing methods can be combined with each other.

When subsequently applying the print image 2 arise in the area of the nominal fault locations 11 . 12 Image defect or image noise 13 . 14 of the printed image 2 , For example, when printing the applied color in the range Sollstörstellen 11 . 12 collect with a higher layer thickness, resulting in a shadow contour within the printed image can lead. In this way, the printed image 2 specifically provided with additional counterfeit-proof features that can be visible to the naked eye. Alternatively or additionally, an evaluation of the printed image 2 be provided by optical measurement.

3 shows a schematic representation of another alternative method of a layer structure 1 for a plastic card. For same features are in 3 the same reference numerals as in the 1 and 2 used.

Unlike the procedure out 2 be in the embodiment in 3 the desired fault locations 11 . 12 in the layer 4 made without the recess before 5 (see. 1 and 2 ) will be produced. The range of setpoint disturbances 11 . 12 the print image is crossed over 2 on the shift 4 applied, so the picture noise 13 . 14 in the print picture 2 arise. The printed image 2 can be printed for example as a print grid. The picture glitches 13 . 14 in the print picture 2 can arise in particular by the fact that the ink printed grid points in the range of side walls 15 . 16 the target noise 11 . 12 due to the oblique formation, unlike the ink of halftone dots on the horizontal surface of the layer 4 ,

The layer structure 1 can according to the embodiment 3 then fed to the further processing of the plastic card to laminate one or more layers, thereby producing a plastic card having an integrated or internal printed image. For the further manufacturing process, various process designs are known as such, which is why they are not explained here. One or more transparent layers of plastic material can be laminated, through which the printed image 2 is visible. It can be integrated one or more opaque layers, through which an underlying image is not visible, then in the opaque layer optionally a recess is incorporated as a window to the visibility of the printed image 2 to enable. Various layer structures with transparent and opaque layers can be provided, wherein the internal printed image 2 at least one flat side of the plastic card can be seen through one or more transparent layers.

4 shows a schematic representation of a plastic card 40 in which in a card body 41 , which is formed as a layer structure, a viewing window 42 is provided, in which the printed image 2 you can see. The printed image 2 is in the embodiment shown by the edge 43 surround. The edge 43 can be an outer contour 44 of the printed image 2 be formed following what 5 schematically shows. This was the recess 5 when producing the layer structure 1 produced accordingly.

6 shows a schematic representation of another plastic card 60 , in the area of the printed image 2 the picture glitches 61 are formed.

On the security document, in particular the plastic card, a representation of the formation of the image defects can additionally be printed, for example in the form of a line representation for the course of the image defects or as a reference image. In this way, for example, any contours or symbols can be incorporated as impurities in the printed image, which are shown for comparison on the plastic card, which supports a fastness test in a simple and efficient manner. 6 shows this as an example for the Bildstörstellen 61 at the further plastic card 60 (see map bottom left).

For producing the layer structure 1 In its various embodiments for the subsequent further processing for producing the plastic card, a device may be provided for the device parts in 7 are shown schematically. In the device in 7 Represents a raster image processor 70 prepared digital data ready to control data for both a printing system 71 to print the print image 2 as well as processing systems 72 . 73 which serve to make the layer structure 1 the recess 5 and / or the Sollstörstellen 11 . 12 manufacture, in particular by means of laser processing and / or mechanical processing. The raster image processor 70 is also referred to as a pixel area calculator. Usually, the raster image processor serves 70 to prepare pre-press data for an imagesetter or printer so that it prints using a layout page 2 can produce. Here, the raster image processor receives 70 data intended for printing, stored using a page description language such as postscript, and repositions all of the constituents presented, and then translates them into a grid of halftone dots. An imageable bitmap can be created here. The so in the raster image processor 70 Data generated as raster data through a database 74a the printing system 71 which are supplied during the production of the layer structure 1 the print image 2 generated.

In addition, those of the raster image processor 70 provided raster data as processing data on another database 74b in a respective control device 75 . 76 for the processing equipment 72 . 73 processed and in converted corresponding control signals. This is done by providing and passing one or more data files. It can be provided that the processing devices 72 . 73 a mechanical processing (milling, planing) and / or a laser processing serve. Due to the processing of raster data for both the control of the printing system 71 as well as the control of the processing device 72 . 73 can during the production of the layer structure 1 a highest precision when making the recess 5 and / or the Sollstörstellen 11 . 12 on the one hand and the subsequent application of the printed image 2 be guaranteed in their area on the other hand.

The from the raster image processor 70 provided raster data may be used to generate the raster data 74a and the editing data 74b be processed with different resolution. The processing data 74b can for the editing system 72 . 73 in a respectively adapted format, for example in a "CNC language" that can be processed by the mechanical processing devices (milling, planing). For laser processing, raster data for the laser ("spot size, intensity") as well as coordinates for a mirror system of the laser can be provided.

8th shows a schematic representation of a plastic card 80 , in addition to the inside printed image 2 a chip 81 having. The structure of a conventional chip card according to the chip 81 when making the plastic card 80 be read with electronic data that can be read by a suitable reader, as it is known in various embodiments as such. The entry of such electronic data in the chip 81 can be done as part of a personalization. It can be provided that the electronic data on the chip 81 stored, defect information include the information regarding the target noise 11 . 12 and / or the picture glitches 13 . 14 in the print picture 2 Show. For example, the contour (line shape and / or image contour) can be displayed by the defect data.

As part of an authenticity check for the plastic card 80 For example, the faulty or faulty data can be read out by means of the card reader and displayed to the user of the card reader via a display, so that the user can display the displayed information with the image defect of the smart card that is visible to the naked eye 80 can compare. Alternatively or additionally, it can be provided that the inside printed image 2 is scanned with the image interference using a scanning device and in the scan image, the image defects are determined to these with the in-chip 81 to compare stored impurity data. This can be carried out by means of a test device which has the scanning device and the card reader, for example a chip card reader, as separate or integrated functional units. Depending on the result of the comparison, the user can be informed of the result of the authenticity check by means of optical and / or acoustic output. Test devices that are set up to scan plastic cards with a chip and read out electronic data from the chip of the plastic card are known as such in various embodiments, for example as a test terminal.

The features disclosed in the above description, the claims and the drawings may be important both individually and in any combination for the realization of the various embodiments.

LIST OF REFERENCE NUMBERS

1

layer structure

2

print image

3, 4

layers

5

recess

6, 7

side walls

8th

print image 2 surrounding edge

9

cover page

10

surface

11, 12

Sollstörstellen in shift

13, 14

Bildstörstellen

15, 16

side walls

40

Plastic card

41

card body

42

window

43

edge

44

outer contour

60

another plastic card

61

Bildstörstellen

70

Raster Image Processor

71

printing system

72, 73

processing systems

74a

Database

74b

another database

75, 76

respective control device

80

smart card

81

chip

QUOTES INCLUDE IN THE DESCRIPTION

This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Cited patent literature

• EP 2307614 B1 [0003]
• DE 102014000133 B4 [0004]
• WO 98/50883 A1 [0005]

Claims (15)

Method for producing a layer arrangement for a security document, comprising the following steps: providing a semifinished product with a layer arrangement ( 1 ) with a stack of layers of plastic material; - making a recess ( 5 ) in an outer layer of the layer arrangement ( 1 ) by means of a processing device; - Printing a print image ( 2 ) in the region of the recess ( 5 ) by means of a printing device and - producing an internal printed image, wherein in this case a further layer of plastic material is applied to the outer layer, such that at least the recess ( 5 ) with the print image ( 2 ) is covered by the further layer, and wherein the inner printed image from a front and / or a back of the layer arrangement ( 1 ) is visible through at least one of the layers from the outside. Method according to claim 1, characterized in that the recess ( 5 ) is at least partially produced as a breakthrough in the outer layer and the printed image ( 2 ) is printed on an underlying layer. Method according to claim 1 or 2, characterized in that the recess ( 5 ) is at least partially produced as a depression in the outer layer and the printed image ( 2 ) is printed in the area of the depression. Method according to at least one of the preceding claims, characterized in that the recess ( 5 ) is produced by mechanical processing in the outer layer. Method according to at least one of the preceding claims, characterized in that the recess ( 5 ) is produced by means of laser processing in the outer layer. Method according to at least one of the preceding claims, characterized in that the printed image ( 2 ) a recess edge surrounding the recess is printed at least partially detecting. Method according to at least one of the preceding claims, characterized in that the recess ( 5 ) surrounding recess edge is at least partially produced with sloping walls. Method according to at least one of the preceding claims, characterized in that the printed image ( 2 ) is made with a print layer thickness that is less than a height of the recess. Method according to at least one of the preceding claims, characterized in that the recess ( 5 ) surrounding recess edge is at least partially produced following an outer print image contour. Method according to at least one of the preceding claims, characterized in that the printed image ( 2 ) with a security document individualizing Bildstörstellen ( 13 . 14 ) will be produced. A method according to claim 10, characterized in that in the region of the recess in the layer arrangement the security document individualizing impurities ( 11 . 12 ), which are responsible for the image 13 . 14 ) assigned. A method according to claim 9 or 10, characterized in that in the layer arrangement an electronic storage medium ( 81 ) is stored and in the electronic storage medium readable electronic data are stored, the information about the image glitches ( 13 . 14 ) and / or the impurities ( 11 . 12 ) Show. A method according to claim 11 or 12, characterized by the following steps: - generating electronic processing data by means of a data processing device, whereby personal and / or non-personal data is processed and a security document individualizing arrangement of the impurities ( 11 . 12 ) are determined; - Transferring the electronic processing data to the processing device; and - producing the impurities ( 11 . 12 ) according to the security document individualizing arrangement by means of the processing device. Method according to at least one of the preceding claims, as far as dependent on claim 10, characterized by the following steps: - generating electronic print data by means of the data processing device, whereby the personal and / or non-personal data are processed and a security document individualizing the image defects ( 13 . 14 ) are determined; - transferring the electronic print data to the printing device; and - producing the image defects ( 13 . 14 ) according to the security document individualizing arrangement when printing by means of the processing device. A security document, comprising a layer arrangement produced according to at least one of the preceding claims and having an internal printed image, which can be viewed from outside from at least one of the front and / or back of the layer arrangement.

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