DE102010025044A1 - Method and device for producing a security document with colored perforations - Google Patents

Abstract

The invention relates to a method and a document (1) as well as a security document (1). The invention is based on the idea of introducing holes (15) into the substrate (2) of a security document (1) on the surface (5) and applying an ink (20) to them. This is preferably designed such that it comprises colorants (53) which diffuse into the substrate (2). The ink (20) applied by printing is introduced deeper into the document than an ink (20) printed only on the surface (5) and is thus better protected against being adulterated and / or damaged during use.

Description

The invention relates to a method for producing a security document and to a device for producing a security document as well as to a security document itself in which information is or are coded by making use of holes in a substrate.

A variety of security documents are known in the art. Security documents are all those documents that have features that make it impossible or at least significantly complicate the copying and / or falsification of a document. Such features are referred to as security feature. Security documents include, for example, identity documents such as passports, identity cards, access cards, driver's licenses, labels, tickets, but also such documents embodying values such as postage stamps, banknotes, stocks or even credit and debit cards, calling cards, to name but a few.

It is also common to store information in security documents. Part of this information is set individually for each security document of a document class. Such information is referred to as individualizing or personalizing information. For example, while the passport information is stored on a passport document on all passports of a particular series in the security document, for example, the name of the person who is to identify himself with the passport is only applied to a single passport of the series.

Regardless of the specific nature of the information, security documents have a very high interest in preventing the information from being manipulated after being incorporated in or into the document. Tampering may consist of removing information, changing the information or adding the information.

It is particularly desirable to include the individualizing information on or in the security document, if possible at the end of a manufacturing process. From the prior art it is known, for example, to print passport documents with the individualization information. With traditional paper documents, however, there is a danger that counterfeiters will make so-called etchings, remove the ink and print new, changed information. Likewise, there is a risk that a falsification is made exclusively by an additional application of further printing ink. It is therefore desirable to store the information applied to an outer surface as possible not only on the immediate surface.

For this reason, for example, laser marking methods have been developed in the prior art with which security documents produced on the basis of plastics can be marked in the interior after completion. For this purpose, individual layers of the document are usually added additives that promote absorption of laser radiation, so that locally targeted information about a pyrolysis of the plastic can be encoded into the interior of a value document by means of a focused laser radiation.

From the EP 0 190 997 B1 A laser marking method is known in which a discoloration of an additive added to a substrate of a security document is discolored by means of laser light, which comprises at least one organic or inorganic pigment and / or one polymer-soluble dye. The inscription is carried out without any visible damage to the human eye. For a full color information storage, the process could not prevail.

Another approach to storing information in a security document is to put holes or cavities in a security document. From the DE 199 34 434 A1 is z. A value or security document having microchannels disposed therein or thereon comprising at least a first and at least a second group of microchannels, the axis of the first group of microchannels being at a different angle to the surface of the value or security document than the axis of second set of microchannels such that a first microchannel image differs from a first viewing angle through the first set of microchannels and a second microchannel image different from the first microchannel image differs from the first viewing angle through the second set of microchannels Viewing angle on the first viewing page is recognizable. The information is visible in transmitted light. It is also described to refill the microchannels after their introduction. From the DE 199 34 434 A1 It is also known to bring perforations of different shape and size in a security document.

From the DE 10 2008 053 582 B3 a portable data carrier, for example a chip card is known, in which a security feature by introducing recesses, filling the recesses with a translucent material and Curing the translucent material is generated, wherein the translucent material contains components that can be excited by UV and or IR irradiation for luminescence. From the EP 1 144 201 B1 For example, a document having a security feature that is in the form of a perforation pattern is known. This includes shades of gray when viewed against a light background, the document being of a material that transmits light to a limited extent. At least some of the perforations that form part of the perforation pattern extend over only a portion of a thickness of the document. The thickness of the remaining portion of the document at the location of the perforation is modulated according to the gray scale of an image to be displayed. From the EP 0 748 286 B2 For example, a carrier is known that includes a printed individualizing pattern that is legible to the human eye. Furthermore, the carrier has an individualizing pattern, which is also formed by perforations, which are introduced by means of a laser and are perceptible to the human eye, wherein the two patterns are related to one another. The perforated pattern has the same characters as the printed pattern.

From the EP 1 144 201 B1 a tamper-proof document is known that has a security feature in the form of a perforation pattern. The document comprises layers of different colored material, whereby a color becomes visible depending on the depth of the perforation.

From the EP 0 936 975 B1 For example, a document is known which is protected by a security feature in the form of a perforation pattern against counterfeiting, the perforation pattern having holes of different sizes. The perforation pattern represents a passport photograph and is introduced into the document by means of laser light.

The invention has for its object to provide a method for producing a security document and a corresponding device and a further developed security document, which allow individualization of an otherwise finished security document blank in such a way that the individualization information is rich in contrast, preferably colored, stored in the security document and difficult to imitate or falsify for a counterfeiter.

Basic idea of the invention

The invention is based on the idea of introducing holes into a substrate of a security document with the aid of laser radiation, and of introducing a colored ink into at least part of these holes by printing technology. This ensures that the information applied by printing is arranged not only on the surface of the document, but at least partially in a depth of the substrate, d. H. inside the substrate, is stored. Nevertheless, the information is applied so that it is viewable from the outside. The fact that the preferably color introduced information is placed in the holes, this is better protected against any occurring in the ordinary use of the security document attrition or other damage. In particular, there is thus provided a method of producing a security document comprising the steps of: providing a substrate; Introducing holes into a surface of the substrate and introducing colored ink by means of a printing process into at least some of the holes. Such a method can be implemented with a device for producing a security element, which has a laser device for the targeted introduction of holes into a surface of a substrate, which is coupled to a printing device, so that at least some of the holes deliberately introduced into the substrate, preferably colored, ink can be introduced by means of the printing device. This gives a security document with at least partially printed technically applied, stored information, which comprises a substrate, wherein holes are introduced into the substrate and the stored information is stored by means of printing technology introduced into the holes colored ink. The information is thus stored in the "depth" of the substrate. The substrate may be, for example, a layer of a card body or a card body of a security document made of one or more such layers.

definition

As colored information is considered if it causes a color impression in a human observer, if necessary, after an excitation. Information is considered to be multicolored if it causes at least two color impressions which can be differentiated for a viewer, brightness differences not being intended to represent different color impressions. Eventually, information is considered colorful if it causes more than three different color impressions. Preferably, at least one color impression is caused by an additive color mixture (in the case of luminescent colors) or a subtractive color mixture (in the case of so-called body colors) from primary colors which span a color space. Black and gray levels are considered a color here.

As inks, all by means of a printing process can be applied to a substrate or in the Substrate formed holes introduced preparations. Colored inks are thus preparations which comprise colorants which cause a color impression in the printed state in the case of a human observer, if appropriate after an excitation with luminescent colors.

Suitable substrates are all materials from which security documents are manufactured. In particular, these plastic materials, which are based for example on a polymer material from the group comprising PC (polycarbonate), in particular bisphenol A polycarbonate, PET (polyethylene terephthalate), PMMA (polymethyl methacrylate), TPU (thermoplastic polyurethane elastomers), PE (polyethylene), PP ( Polypropylene), PI (polyimide), ABS (acrylonitrile-butadiene-styrene), PVC (polyvinyl chloride), and copolymers of such polymers. Particularly preferably, the substrate is formed from one or more polymer layers based on said polymers, which are joined together, for example, in a lamination process. A substrate may thus be composed of different components and different materials. It should be understood that the substrate may include a variety of other different security features and security features, such as incorporated holograms, microchips, and the like.

Preferred embodiments

Particularly high anti-counterfeiting security is obtained in an embodiment in which the ink is provided or prepared such that colorants of the ink diffuse into the substrate after being introduced into the holes. This means that the color impression causing colorant are not only located in the holes or on their walls, but diffuse further into the material of the substrate.

More preferably, the ink is added to a solvent dissolving the material of the substrate and the substrate is locally dissolved by means of the solvent of the ink in order to promote the diffusion of the colorant in the substrate.

Detachment of the colorant introduced by the ink in a counterfeiting attempt is most successfully prevented when the ink is or is manufactured on the basis of the plastic material on the basis of which the substrate is made. In such a case, the ink or the material on the basis of which the ink is made forms a monolithic compound with the substrate material, so that separation, for example by drilling out with mechanical means, is made considerably more difficult.

The holes are preferably introduced by means of laser radiation. Focused short-pulse lasers can locally introduce such a large amount of energy in a short period of time into transparent substrate material, for example transparent polycarbonate, that it is ablated without discoloring adjacent layers.

Anti-counterfeiting security can be increased by forming the holes by irradiating the laser radiation onto or into the substrate from a direction that is different from a surface normal of the surface of the substrate. As a result, holes are formed in a preferred embodiment, which are partially concealed by this in a vertical plan view of the surface of the substrate. This means that no clear view of the inner wall surface of the entire hole is possible. Nevertheless, with a transparent substrate material, it may also be possible to see the inner surface of the hidden part of the hole in a vertical plan view.

In a development of the invention, it is provided that the holes with different geometries are introduced into the substrate. This means that the holes may differ in their diameter, a direction of a central axis in a conical or cylindrical shape, but may also have a different cross-sectional shape, for example a circular or oval cross-sectional shape. It is also possible to generate some or all of the holes by means of an irradiation of light from a laser from different directions or the light of several lasers. Such holes are then formed so that inner wall surfaces are completely visible at the same time from any viewing direction.

In one embodiment, at least some of the holes are completely filled by means of the colored ink so that these some holes are filled flat in the finished state. This means that after a possible evaporation of solvents contained in the ink in the holes remains a material which permanently fills the holes and whose surface is flush with the surrounding surface of the substrate.

In a further embodiment, it is provided that a volume of ink is introduced into the volumes of the holes, so that after completion, a projecting over the surface of the substrate supernatant remains. In such a case, the colored information can also be felt as a raised relief.

It is particularly preferred that the ink is precisely printed in the holes, so that the preferably colored ink is not on the Surface of the substrate passes. As a result, embodiments are achieved in which the preferably colored, particularly preferably colorful, information is stored exclusively in the holes. Thus, the colored or colorful information is particularly well protected against environmental influences directly on the surface during use, such as abrasion or the like. In this context, in particular those embodiments are preferred in which the volumes of the holes are only partially filled with ink.

Precise printing of the substrate in such a manner that precise printing in the holes can be realized, for example, by means of an inkjet printing process in which the preferably colored ink or a plurality of different colored inks is introduced into the holes by means of an inkjet printing process , Of course, such a printing method can also be used to fill the holes flat or to ensure that a raised projection remains in the finished state.

A preferred device thus comprises a printing device comprising an inkjet printing device.

In one embodiment, the sidewalls of the holes are intentionally unevenly inked. As a result, it is also possible to store viewing-angle-dependent information in the substrate with and in holes whose axes are parallel. An advantage of using an inkjet process is that inks with a very low dynamic viscosity in the range of 1 to 30 millipascal seconds (mPas) can be used at room temperature. In addition, the amounts of ink delivered can be metered very precisely, for example in a range of 0.5 to 45 picoliters. With suitable design of the print heads, these values can also be varied.

An inkjet printing method proves to be particularly advantageous also because it is possible to output the ink at different angles relative to the surface of the substrate. In a preferred embodiment, the ink is introduced in a direction onto the substrate or into the holes, which is inclined to a normal of the surface. In this way, if the holes are, for example, cylindrical or conical with a central axis which is also inclined to a surface normal of the surface of the substrate, it is possible to move the ink into a region of the hole remote from the surface, i. H. to apply deep into the hole. If the uppermost substrate layer is applied opaque or an opaque printing on the surface, then it is possible to apply the ink so that it is not visible in a vertical plan view of the document. In such a case, the stored information is only visible in a plan view along a viewing direction that is at least approximately coincident with a direction under which the laser radiation is irradiated to introduce the holes. On the other hand, when the holes are formed, for example, cylindrically or conically with a central axis coincident with a surface normal of the substrate, introducing the ink at an angle inclined from the surface normal causes the ink to be incident only on an angle sector the cylindrical or conical inner surface of a hole is applied.

In one embodiment of the invention it is provided that at least in some of the holes the colored ink is introduced at a first angle relative to the surface of the substrate, preferably by means of an inkjet print, and additionally at least one second colored ink different from the first ink at a different angle different from the first angle, is introduced relative to the surface of the substrate in the at least some holes, so that with respect to a central axis of at least some holes opposite wall inner surfaces have a different color impression. In one embodiment of an apparatus for producing a security document according to the invention, it is thus provided that an output direction of the printing device can be varied in a controlled manner.

In one embodiment, the printing device includes a plurality of printheads that deliver the ink in different directions. In another embodiment, the printheads are pivotally mounted. Still other embodiments have printheads that include a plurality of dispensing channels formed at different angles in the printhead.

In particular, in order to be able to selectively produce different color impressions in the individual holes, in one embodiment the introduction of the holes into the substrate and / or the subsequent introduction of the ink into the holes is carried out iteratively, whereby in the different iteration steps inks of different nature are used. The inks may differ, for example, in terms of the color impression they produce in the final printed condition.

A color impression in the holes can be deliberately adjusted by introducing differently colored inks one after the other in a targeted manner, with the quantity ratio of the introduced inks a local color impression is set in or around the hole.

In order to be able to deliberately introduce the ink into holes, it is advantageous if an amount of ink can be variably varied. In another embodiment, it is additionally or alternatively possible to vary an output speed of the ink, in order in particular to be able to vary a penetration depth into the holes.

In particular, in embodiments that do not use inkjet printing, it is advantageous if a residue-free removable film is applied or applied to the substrate. This is or is applied before applying the holes. This makes it possible to use larger alignment tolerances with respect to an orientation of a print image and the positions of the holes. Nevertheless, it is ensured that no ink remains on the surface of the substrate next to the holes.

Such a film, for example an adhesive film, is also advantageous if other printing processes are to be used and printing of an environment of the holes on the surface is to be omitted.

The invention will be explained in more detail with reference to figures. Hereby show:

1 a schematic plan view of a security document;

2 a schematic plan view of another security document with a silhouette;

3 a sectional view of a security document with differently introduced holes;

4 a schematic plan view of a security document with a residue-free removable film to illustrate an introduction of an ink in the holes;

5 a plan view of a security document for schematically illustrating different hole geometries;

6 a schematic plan view of a section of a security document;

7 a section through the security document after 6 ;

8th a sectional view of a security document with a removable protective film;

9 a schematic representation of a manufacturing device;

10 a schematic representation of a pivotable laser device;

11 a schematic representation of a printhead, which can deliver ink in different directions;

12 a schematic representation of a pivotable print head;

13 a schematic sectional view of a section of a security document in which holes of a perforation are overprinted with an ink whose colorants penetrate a diffusion deeper into the security document and form a diffusion zone; and

14 a schematic plan view of a security document, which has punched holes along a rim, which are filled with an ink.

In 1 is schematically a security document 1 shown. This includes a substrate 2 into which information in the form of a facial image 3 and a signature 4 are stored. The facial image 3 and the name 4 are on a surface 5 of the substrate 2 printed. Other security features are not shown for reasons of simplification. The facial image 3 and the name 4 are formed in such a way that initially by means of a laser laser ablation cavities or holes in the substrate 2 are introduced, in which then the ink is introduced. In a preferred embodiment, the facial image is colorful. This means that it causes more than three different color impressions in a human observer. Preferably, the facial image is printed by means of at least three different inks, each representing a base color of a complete color system, which span a gamut as large as possible. Preferably, the paint is applied so that it is completely in the cavities. Other embodiments may provide that the ink is only partially formed in the cavities and partly at the surface. Particular preference is given to using inks which comprise colorants which penetrate not only into the cavities but additionally into the substrate material of the substrate 2 diffuse. As a result, even greater protection against adulteration is achieved.

In 2 another embodiment of a security document is shown. Same technical features are denoted by the same reference numerals as in 1 Mistake. In this embodiment For example, on a left side is a facial image in the substrate 2 of the security document 1 saved in any way. For example, the facial image may be on the surface 5 be printed without previously introduced cavities. Alternatively, the facial image can be inside the security document 1 , For example via laser markings or an imprint of an inner film, with other films to the substrate 2 laminated together, be introduced. In addition to the first facial image 6 is a so-called silhouette 7 in the substrate 2 saved. This is made by only a few 10 to 200 .mu.m, preferably 20 to 100 microns, diameter-containing holes in the surface 5 of the substrate 2 be introduced. The introduction is again preferably by means of laser ablation. Ink is then introduced into these holes by printing technology, for example by means of an inkjet printing process. The ink may be a so-called fluorescent ink, which causes a perceptible color impression in the form of fluorescent light in the visible wavelength range only after excitation, for example with UV light. The printing technology introduction of the ink is preferably carried out so that the ink is applied exclusively in the holes. This can be done so that the holes are only partially filled with the ink in the finished state. Other embodiments provide that the holes are filled so that they are flush with the surface 5 of the substrate 2 to lock. Still other embodiments provide that the ink forms raised projections in the area of the holes.

In 3 is a schematic sectional view through a security document 1 shown. It can be seen that the substrate 2 of the security document 1 of several layers 10 - 14 , preferably in a lamination process to form a monolithic body. In an alternative embodiment, a security document may have in a center a core layer of TPU, opaque polycarbonate layers adjacent to both surfaces of the core layer, and again transparent polycarbonate layers adjacent thereto. A layer sequence of this alternative embodiment is then: transparent polycarbonate, opaque polycarbonate, TPU, opaque polycarbonate, transparent polycarbonate. At the in 3 illustrated embodiment is in the surface 5 a lot of holes 15 formed of different geometries. In the illustrated embodiment, the holes include 15 for example, a cylindrical hole 15a , a conical hole 15b , each having a central axis 16a . 16b which collinear with a surface normal 17 is. Other cylindrically shaped holes 15c - 15f have central axes 16c - 16f on, whose central axes 16c - 16f an inclination to the surface normal 17 exhibit. holes 15g and 15h are formed by means of a laser irradiation from different directions and have a trapezoidal shape in cross section. It can also be clearly seen that the different holes are at different depths in the substrate 2 extend and for example holes 15i and 15j even penetrate the entire document. By a suitable choice of a viscosity of the printing ink and a diameter and a shape of the holes and the corresponding printing method and a related issue or Aufbringrichtung of the ink and a suitable choice of an application rate and amount, the penetration of the ink in the holes are controlled. For shallow holes and cavities, a conical shape favors complete wetting of a wall inner surface 18 a hole. In addition, at low hole diameters, capillary forces favor penetration of the ink. Preferably, in the case of a substrate that consists of several layers 10 - 14 For example, each made of polycarbonate and laminated together to form a monolithic body also uses inks made on the basis of the same polymer. For a substrate made of polycarbonate such inks are for example from DE 10 2007 052 947 known.

In 4 is another schematic sectional view of a security document 1 shown. On the substrate 2 , which also consists of several layers 10 - 14 is laminated together, is a residue-free removable protective layer or film, for example as an adhesive film 19 applied. This will be when inserting the holes 15 fully penetrated locally. Then the ink gets into the holes 15 applied. For example, this is for a hole 15l showing only part of a jacket-shaped inner surface with the ink 20 is covered. In other embodiments, the ink is introduced into the holes of the substrate without an adhesion layer being previously applied to the substrate.

In 5 is a schematic plan view of a section of a substrate 2 a security document. Good to see is that the holes introduced 15 may have different cross sections and diameters. By dashed lines 21 are the dimensions of the holes 15 below the surface 5 indicated.

In 6 an embodiment is shown in which the ink is applied so that it has on the surface an extent which is greater than a diameter of the holes.

In 7 schematically a section through the corresponding security document is shown. While left a hole 15m is shown, whose Volume only partially with the ink 20 is filled, is a hole shown on the right 15n with ink 20 replenished that this is a sublime projection 22 above the surface 5 of the substrate 2 forms.

In 8th is an embodiment similar to that of 6 shown, but with the introduction of the ink 20 in the holes 15 an adhesive film 19 on the substrate 2 is applied, which can then be removed. This will ensure that the side next to the holes 15 no ink residue on the substrate 2 remain. This can also be realized with manufacturing processes that require precise application of the ink 20 in the holes 15 allows. Such an application is, for example, with an embodiment of a production device 30 possible, as shown schematically in 9 is shown.

On a transport device 31 become security documents 32 fed. In substrates 33 the security documents 32 be by means of a laser ablation device 34 by means of laser radiation 35 holes 36 brought in. Subsequently, a corresponding substrate 33 to a printing device 37 by means of the transport device 31 promoted. This is formed for example as an ink jet printing device and applied specifically in the holes 36 ink 20 , The laser ablation device 32 , the transport device 31 and the printing device 37 are preferably by a common control unit 39 controlled.

In 10 schematically is an embodiment of a laser ablation device 34 shown with the holes 15 measured at different angles α against a surface normal 17 the surface 5 of the substrate 2 can be introduced. A laser 41 can be both translational relative to the substrate 2 as well as rotating around its center 42 be pivoted. Alternatively or additionally, it may be provided to tilt the substrate against a stationary laser and / or to move it in a translatory manner relative to this or a radiation axis of the radiation generated by the laser. It will be appreciated that the tilt of the substrate may be varied such that the angle of the surface normal of the surface of the substrate is differently oriented with respect to the radiation axis of the laser and holes are producible or generated at different angles with respect to the surface of the substrate.

In 11 is schematically a printhead 51 shown, the different delivery channels 52a - 52c having. These can alternatively be controlled specifically for ink delivery. It can be clearly seen that this makes it possible to have different sector surfaces of the shell-shaped inner walls of the holes 15 with ink 20 to wet. The ink 20 is preferably formed so that the colorants 53 in the substrate 2 diffuse. To aid in diffusing, the ink may 20 a solvent comprising the material of the substrate 2 locally.

In 12 is another embodiment of another printhead 51a shown which only one delivery channel 52a but around an axis 54 is pivotally adapted to output ink at different angles on the document or in holes in the substrate can. Preferably, the printhead 51a to 12 Further, configured so that an amount of ink and / or an ink discharge speed can each be controlled individually.

In alternative embodiments, the substrate is passed past the printhead at an angle such that a surface normal to the surface of the substrate is not congruent with a central output direction of the printhead. This means similar to that for a printhead 12 in that the surface normal of the substrate is oriented at a non-zero angle to a central axis of the dispensing channel. This angle may be varied while passing by in some embodiments.

In 13 is a schematic sectional view of a section of a security document 1 shown in the holes 15 a perforation with an ink 20 are overprinted, their colorant 53 not just in the holes 15 but via a diffusion deeper into the security document 1 penetrate and a diffusion zone 55 form. The information is thus as deep as possible inside a security document 1 , and the substrate 2 stored and integrated, from which the security document 1 is made. In the illustrated section, it can be seen that a printing pixel 56 quite a few holes 15 can cover.

In 14 is a schematic plan view of a security document 1 shown, which along an edge 57 punched holes 15 that has an ink 20 are filled. Preferably, the ink is 20 fluorescent ink, which causes a perceptible color impression in the form of fluorescent light in the visible wavelength range only after excitation, for example with UV light. In contrast to replicas in which the edge is printed with fluorescent ink without holes, an intensity of fluorescence radiation is that of the ink 20 filled holes 15 significantly increased since the total amount of ink in the holes is greater than for a print made on one surface only.

It is understood that the production can be done in multiple use. It will also be appreciated that multiple laser beams may be used simultaneously for inserting the holes, as well as multi-printhead printers which emit, for example, inks that produce a different color impression and / or deliver the ink under different directions, amounts, speeds, etc. The features mentioned in the above-described embodiments may be used in any combination for carrying out the invention.

LIST OF REFERENCE NUMBERS

1

The security document

2

substratum

3

facial image

4

Namenszug

5

surface

6

facial image

7

silhouette

10

layer

11

layer

12

layer

13

layer

14

layer

15, 15a, ..., 15n

hole

16a, ..., 16f

central axis

17

surface normal

18

Wall inner surface

19

cling

20

ink

21

dashed line

22

head Start

30

making device

31

transport means

32

security documents

33

substratum

34

laser ablation

35

laser radiation

36

holes

37

print Setup

39

control unit

41

laser

42

Focus

51

printhead

51a

printhead

52a, 52b, 52c

output channel

53

colorants

54

axis

55

diffusion zone

56

pressure pixels

57

edge

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 0190997 B1 [0007]
• DE 19934434 A1 [0008, 0008]
• DE 102008053582 B3 [0009]
• EP 1144201 B1 [0009, 0010]
• EP 0748286 B2 [0009]
• EP 0936975 B1 [0011]
• DE 102007052947 [0054]

Claims (15)

Method for producing a security document ( 1 ) comprising the steps of: providing a substrate ( 2 ); Inserting holes ( 15 ) into a surface ( 5 ) of the substrate ( 2 ); Introducing ink ( 20 ) in at least some of the holes ( 15 ) by means of a printing process. Method according to claim 1, characterized in that the ink ( 20 ) is prepared or prepared in such a way that colorants ( 53 ) of the ink ( 20 ) after insertion into the holes ( 15 ) in the substrate ( 2 ) diffuse. Method according to one of the preceding claims, characterized in that the ink ( 20 ) a material of the substrate ( 2 Solvent is or is added, and by means of this solvent, the substrate ( 2 ) is locally dissolved in order to prevent the diffusion of colorants ( 53 ) in the substrate ( 2 ) to support. Method according to one of the preceding claims, characterized in that the ink ( 20 ) is or is based on the plastic material on the basis of which the substrate ( 2 ) is made. Method according to one of the preceding claims, characterized in that the holes ( 15 ) are introduced by means of a laser radiation. Method according to one of the preceding claims, characterized in that at least some holes ( 15 ) completely by means of colored ink ( 20 ) so that these some holes ( 15 ) are filled in the finished state plan. Method according to one of the preceding claims, characterized in that prior to the introduction of the holes ( 15 ) a residue-free from the surface ( 5 ) of the substrate ( 2 ) film to be removed ( 19 ) is applied. Method according to one of claims 1 to 6, characterized in that in the volumes of the holes ( 15 ) a volume of ink ( 20 ) is introduced, so that after completion over the surface ( 5 ) of the substrate ( 2 ) projecting supernatant remains. Method according to one of claims 1 to 7, characterized in that volumes of the holes ( 15 ) only partially with the ink ( 20 ). Method according to one of the preceding claims, characterized in that the ink ( 20 ) precisely in the holes ( 15 ) is printed so that the colored ink ( 20 ) not on the surface ( 5 ) of the substrate ( 2 ). Method according to one of the preceding claims, characterized in that at least some of the holes ( 15 ) a colored ink ( 20 ) at a first angle relative to the surface ( 5 ) of the substrate ( 2 ) is preferably introduced by means of an inkjet printing process, and additionally at least one second colored ink ( 20 ) at a different angle than the first angle relative to the surface ( 5 ) of the substrate ( 2 ) into the at least some holes ( 15 ) is introduced so that with respect to a central axis ( 16 ) of at least some holes ( 15 ) opposite inner wall surfaces ( 18 ) have a different color impression. Contraption ( 30 ) for the production of security documents ( 1 ), characterized in that a laser device ( 34 ) for the targeted introduction of holes in a surface ( 5 ) of a substrate ( 2 ) with a printing device ( 37 ) is coupled so that in at least some of the in the substrate ( 2 ) specifically introduced holes ( 15 ) a colored ink ( 20 ) can be introduced by means of the printing device. Contraption ( 30 ) according to claim 12, characterized in that the printing device ( 37 ) comprises an inkjet printing device. Contraption ( 30 ) according to claim 12 or 13, characterized in that a discharge direction of the ink ( 20 ) of the printing device ( 37 ) and / or an ink quantity delivery and / or an output speed of the ink ( 20 ) are controlled variable. Security document ( 1 ) with stored at least partially printed information stored information comprising a substrate ( 2 ), in which holes ( 15 ), characterized in that the information in the holes ( 15 ) by means of a colored ink ( 20 ) is introduced.

Images