CN108790466B

CN108790466B - Security insert for a document having a recess and method for producing a security insert for a document having a recess

Info

Publication number: CN108790466B
Application number: CN201810225477.8A
Authority: CN
Inventors: 马丁·埃德雷尔; 弗朗茨·赫歇尔; 安东·布伦纳; 弗朗茨·布兰德尔; 米夏埃尔·万杰克; 托马斯·米希尔
Original assignee: Muehlbauer & CoKg GmbH
Current assignee: Muehlbauer & CoKg GmbH
Priority date: 2017-04-26
Filing date: 2018-03-19
Publication date: 2022-07-19
Anticipated expiration: 2038-03-19
Also published as: DE102017004037B4; CN108790466A; DE102017004037A1

Abstract

A security insert for a document having an optically recognizable marking includes at least one transparent first layer having a recess. A color coating is on the transparent first layer, the color coating being transparent to infrared light. The color coat is at least partially located in the area of the recesses on the transparent first layer. In addition, there is a transparent polymeric material in the recesses of the transparent first layer. At least a portion of the color coating is surrounded by the transparent first layer and the transparent polymeric material. The transparent first layer has a blackened layer. A first portion of the optically recognizable indicia is formed from a blackened layer in the first layer. The second portion of the optically recognizable indicia is formed by a color coating. The first and second portions of the optically identifiable indicia are arranged and configured to reflect visible light. A first portion of the optically identifiable indicia is arranged and configured to reflect infrared light.

Description

Security insert for documents with recesses and method for producing a security insert for documents with recesses

Technical Field

A security insert for documents with optically recognizable markings is described. Such a security insert can be used, for example, in passports in the form of data sheets or in employee cards, driver licenses, identification cards, social security cards or membership cards.

Background

The security insert is suitable not only for booklets, such as passports, but also for documents in the form of credit cards, for example according to ISO/IEC 7810.

Such security inserts are typically generally rectangular in plan view and include optically identifiable indicia such as personal photographs, text fields, license numbers, country logos and/or national emblems.

The purpose of the use of the security insert is the unique identification, durability, abrasion resistance and security of the document.

To improve security against forgery, the security inserts for documents can be provided with visible features that are difficult to imitate or at least complicated to imitate. These features are used to make counterfeiting of the document difficult and/or to distinguish a genuine document from a counterfeit document.

Furthermore, the security insert for documents can be invisible and/or have a visible security feature only under certain conditions, for example under UV light irradiation. This feature is also used to make counterfeiting of the document difficult and/or to distinguish a genuine document from a counterfeit document. Thus, for example, german patent DE 102013218861 a1 shows a semi-finished product for security documents, which semi-finished product is able to recognize graphic information under UV excitation. But the graphical information provides an optically identifiable security feature only under UV excitation. The graphical information is transparent to light in the visible wavelength range.

European patent EP 2004415B 1 shows the use of laser etching as an invisible security feature of documents, but in which the document must be irreversibly destroyed in order to expose the laser etching.

While there are many solutions, there is a need for an improved security insert for documents that avoids these drawbacks.

Disclosure of Invention

It is therefore an object of the present invention to provide an improved security insert for documents and an improved method of manufacturing a security insert for documents. It should be difficult for a third party to make unauthorized copies of the security insert and the document should be able to verify its integrity without damage by means of an optically recognizable identification.

The object is achieved by an apparatus and a method according to the following solution. Advantageous embodiments are defined by the additional claims.

According to a first aspect, a security insert for documents with optically recognizable markings comprises a transparent first layer and a transparent second layer. An ink-receptive layer is disposed on the transparent first layer. The ink-receptive layer is transparent to infrared light. The transparent first layer and the transparent second layer are connected to each other. Wherein at least one transparent layer has a blackened portion. The first part of the optically recognizable marking is formed by a blackened portion in at least one of the layers. The first and second portions of the optically identifiable indicia are arranged and configured to reflect visible light. Infrared light is reflected by the first portion of the optical marking.

The security insert thus displays first graphic information during illumination with visible light, the first graphic information being formed jointly by a first part of the optically recognizable marking and a second part of the optically recognizable marking. The safety insert displays second graphical information when illuminated with infrared light, which second graphical information is formed by the first part of the optically recognizable marking.

The first graphic information and the second graphic information may be the same or different graphic information from each other.

In a first example, the first pattern may be illustrated by an ink-receptive layer of the transparent first layer, such that the pattern is optically recognizable during illumination with visible light. Meanwhile, a second pattern (the second pattern is particularly different from the first pattern) may be shown by a blackened portion in at least one of the layers. The second pattern may be obscured by the first pattern such that the second pattern is optically unrecognizable during illumination with visible light. In contrast, the security insert may only display the second pattern during illumination with infrared light. Instead of the second pattern or in addition to the second pattern, the text information can also be shown, for example, by a blackened section in at least one of the layers.

In a second example, the first pattern may be shown by an inked layer of the transparent first layer and the second pattern may be shown by a blackened portion in at least one of the layers, but the first pattern does not obscure the second pattern. Thus, the first and second patterns are visible during illumination with visible light and only the second pattern is visible during illumination with infrared light.

In a third example, the first pattern may be shown by an ink-receptive layer of the transparent first layer and the second pattern may be shown by a blackened portion in at least one of the layers, wherein the first and second patterns at least partially overlap from the perspective of the viewer. For example, the black portion of the entire pattern may be formed by a blackened portion in at least one of the layers, while the color portion of the pattern is formed by the inking layer, so that the entire pattern is visible during irradiation with visible light and only part of the pattern is visible during irradiation with infrared light.

In a fourth example, a first part of the text or pattern is shown by an inking layer, in particular by a black or multicolored black inking layer, while a second part of the text or pattern is shown by a blackened section in at least one of the transparent layers, so that the entire text or the entire pattern is visible during the illumination of the security inlay with visible light and only part of the text or pattern is visible during the illumination of the security inlay with infrared light.

In a fifth example, for example, text containing information about the holder of the security insert can be shown by the absence of a blackened section in at least one of the transparent layers. In other words, at least one of the transparent layers has a blackened portion which comprises a missing portion, in particular in the form of a letter or other symbol, so that during the irradiation of the security insert with infrared light the letter can be identified in that the blackened portion reflects infrared light, but the missing portion in the form of a letter or other symbol does not reflect infrared light. In other words, the blackened portion displays a negative image during irradiation with infrared light. From the viewpoint of the observer, the missing part and/or the blackened part surrounding the missing part can be masked by color printing, for example by means of a multi-color black color that is transparent for infrared light, so that the missing part and/or the blackened part surrounding the missing part are visible only under infrared light.

The advantage of such a security insert is that the security against forgery is increased and at the same time the authenticity of the security insert can be checked by simple irradiation with infrared light. In particular, by making the black-colored part of the optical marking possible both from the blackened part in at least one of the transparent layers and from the black, in particular multicolored, part of the inking layer, it is made difficult for an unauthorized third party to produce a security insert copy which cannot be identified as a counterfeit, in particular under infrared light.

The ink receptive layer may include color portions of the original colors cyan, magenta, and yellow.

The ink receptive layer may be applied to the transparent first layer by means of ink jet printing.

The advantage of using color portions made of cyan, magenta and yellow is that in one variant the use of black color portions for producing the ink-receiving layer can be at least partially dispensed with, but the available color spectrum is not limited thereby. The black part of the overall pattern, which is used to create the true-color overall pattern in the printing processes known from the prior art (according to ISO2846, cyan-magenta-yellow-black printing process, CMYK printing process), can be formed by a blackened section in at least one of the layers. The use of black color portions in the ink application layer can thereby be at least partially eliminated.

Furthermore, by combining color portions consisting of cyan, magenta and yellow, it is possible to form an ink-receptive layer of multi-color black, which is transparent in particular for infrared light.

Wherein the at least one transparent layer can be blackened at least partially by the action of the at least one laser beam. For this purpose, the transparent layer can contain additives, in particular carbon-based additives. As a result, the blackened section, in particular the carbonized section, can be produced in a targeted manner with the desired intensity by the action of the laser beam.

An advantage of using such blackened portions in a security insert for a document is that an unauthorized third party who is intentionally forging the security insert cannot or is very difficult to determine in which layer a particular blackened portion is located without destroying the security insert. Furthermore, the blackened section can be provided with different reflection properties than the ink-receptive layer, in particular by irradiation with infrared radiation, and thus also contributes to the security of the security insert against forgery and to the detection of the authenticity of the security insert. The use of a laser beam enables the blackened portions to be created accurately and efficiently in a time-saving manner.

In one variation, the security insert may include a first UV ink receptive layer on the first layer and/or the ink receptive layer. The first UV inking layer reflects at least UV light in a first wavelength range. A third portion of the optically identifiable indicia can be formed from the first UV inked layer.

In another variant, the security insert may further comprise a second UV ink receptive layer on the first layer and/or on the ink receptive layer and/or on the first UV ink receptive layer. The second UV inking layer reflects at least UV light in a second wavelength range. A fourth portion of the optically recognizable indicia may be formed from the second UV inked layer.

The third and/or fourth portion of the optically recognizable indicia may display the same graphical information as the first and/or second portion of the optically recognizable indicia and/or display different graphical information than the first and/or second portion of the optically recognizable indicia. For example, an image of the face of the holder of the security insert may be displayed.

The first UV inking layer and/or the second UV inking layer may be transparent to visible and/or infrared light.

In one variation, the first UV inking layer and/or the second UV inking layer may be a multi-colored UV inking layer. In particular, the UV inking layer can have color portions of red, green, blue and white (RGBW) or cyan, magenta and yellow and/or black (CMYK), which respectively reflect UV light. In a further development, further color portions can be used for the first UV inking layer and/or the second UV inking layer.

The first UV ink-receptive layer and/or the second UV ink-receptive layer may be arranged and configured to display multi-colored graphical information, such as a facial image of a document holder, to an observer of the security insert during illumination of the security insert with UV light, the facial image being unrecognizable by the observer, particularly during illumination of the security insert with visible light only.

In one variation, the first UV inking layer and/or the second UV inking layer can be bi-fluorescent. In particular, the first UV ink layer provides a first color effect to an observer of the security insert during illumination of the security insert with UV light of a first wavelength and a second color effect during illumination of the security insert with UV light of a third wavelength. Furthermore, the second UV inking layer enables an observer of the security insert to obtain a third color effect during illumination of the security insert with UV light of a second wavelength and a fourth color effect during illumination of the security insert with UV light of a fourth wavelength. The first color effect, the second color effect, the third color effect, and the fourth color effect may be different from each other or at least partially the same.

For example, the first UV inking layer enables an observer of the security insert to obtain a color effect composed of red, green, blue and white color portions during irradiation of the security insert with UV light of a first wavelength, preferably 365nm, and a color effect composed of green and red color portions during irradiation of the security insert with UV light of a third wavelength, preferably 254 nm.

In another example, the second UV ink receptive layer provides a color effect of blue to an observer of the security insert during illumination of the security insert with UV light of a second wavelength, preferably 365nm, and a color effect of red during illumination of the security insert with UV light of a fourth wavelength, preferably 313 nm.

The advantage of the first UV ink-receptive layer and/or the second UV ink-receptive layer is that additional security features can be added to the security insert by creating the third and/or fourth portions of the optically recognizable marking, which additional security features are visible in case the security insert is irradiated with UV light. This can further improve the security against forgery of the security insert if a first UV inking layer and a second UV inking layer are used, which reflect UV light in respective different wavelength ranges, in particular because the duplication of the security insert becomes more difficult.

In one embodiment, the security insert may also comprise a covering layer made of polycarbonate, polyethylene terephthalate or polyethylene terephthalate.

The advantage of the cover layer is that the safety insert is protected against adverse environmental influences, such as the ingress of moisture; or to protect against mechanical damage, such as scratching the safety insert.

As an alternative or in addition to the transparent cover layer, the security insert can have a lacquer layer which is applied to the transparent first layer and/or to the inking layer and/or to the first UV inking layer and/or to the second UV inking layer. For example, the lacquer layer may completely cover the surface of the transparent first layer and the ink application layer located thereon, or in another example only cover the ink application layer located on the transparent first layer and/or the first UV ink application layer and/or the second UV ink application layer. In a further development, the lacquer layer can cover the ink-receptive layer and/or the first UV ink-receptive layer and/or the second UV ink-receptive layer on the transparent first layer and a part of the transparent first layer. For example, the area covered by the lacquer layer is 5 to 20 percent larger than the area of the inking layer and/or the first UV inking layer and/or the second UV inking layer on the transparent first layer.

The lacquer layer may be transparent to visible light and/or infrared light and/or UV light. The lacquer layer can have the same material of construction as the transparent first layer. At least a part of the lacquer layer can comprise a production material consisting of (meth) acrylate, polyester acrylate or polyurethane acrylate. Furthermore, the production material for the lacquer layer can be a thermally and/or UV-curable production material, in particular.

The lacquer layer can have a thickness of less than 100 μm, in particular a thickness of 30 μm to 80 μm. Furthermore, the lacquer layer can be applied to the transparent first layer by means of an ink jet printer.

The advantage of the lacquer layer is that it cannot be removed or is difficult to remove from the transparent first layer and thus improves the security of the security insert. Furthermore, the lacquer layer protects the transparent first layer against scratches and/or abrasion.

Furthermore, the security insert may comprise a transparent third layer, in particular blackened by laser, and/or a transparent fourth layer, in particular blackened by laser.

The advantage of the further transparent layer, in particular by laser blackening, is that the security against forgery is further increased. The entire optically recognizable marking perceived from the viewer's perspective can thus be arranged onto the plurality of transparent layers as well as the inking layer and/or the plurality of UV inking layers.

At least one transparent layer can have an increased base area relative to another transparent layer, wherein the base area is understood to mean the size of the security insert or of the transparent layer from the viewpoint of an observer of the security insert. The enlarged base surface of the at least one transparent layer can advantageously be used to connect the security insert to a booklet, in particular a passport. In this case, an enlarged portion of at least one transparent layer relative to the other transparent layer serves to fix the security insert in the booklet.

The first background inking layer may be located on the second layer. The second background inking layer can be located on the fourth layer.

The use of a background ink-receptive layer has the advantage of being able to contribute effectively to the optical perception of all the information of the security insert in terms of manufacture. The first background inking layer and the second background inking layer may include security features that further enhance the security of the security insert against counterfeiting.

The first background ink-receptive layer and/or the second background ink-receptive layer may be established by an offset printing process.

Furthermore, the security insert may comprise an inlay which has at least one first inlay layer, in particular an opaque and/or optically active inlay layer. The insert may be located, for example, between the transparent second layer and the transparent third layer.

In one variant, the insert is located in a recess of the second transparent layer and/or the third transparent layer.

In one embodiment, the insert may comprise a second insert layer, in particular an opaque and/or optically active insert layer. The electronic component, in particular the assembly of the antenna module and/or the RFID chip, can be located between the first inlay layer and the second inlay layer. Embodiments with additional inlay layers are possible.

The use of an antenna module and/or an RFID chip has the advantage that the security against forgery and the checking of the integrity of the security inlay are further increased by electronic reading devices known from the prior art for RFID chips.

At least one of the layers may comprise a holographic element which is visible to an observer of the security insert and has a visual holographic effect. The visual holographic effect is optically recognizable not only under visible light but also under invisible light, in particular under infrared light or ultraviolet light.

In one variant, the holographic element may be transparent to UV light.

The holographic element may at least partially overlap a portion of the optically identifiable marker, at least from the perspective of a viewer.

In a further development, the holographic element can also be arranged between transparent layers or between a transparent layer and an insert. In particular, the holographic element can be arranged between the transparent first layer and the transparent second layer or between the transparent second layer and the insert.

The use of a holographic element has the advantage that the security of the security insert against counterfeiting and the detection of the integrity of the security insert are further improved.

The transparent layers and/or the insert and/or the cover layer can be connected to each other by lamination.

The lamination of at least two transparent layers has the advantage that it is difficult for an unauthorized third party, for example, to separate the layers from one another without the layers being destroyed in order to produce a counterfeit of the security insert

At least one transparent layer of the security insert can be made of polycarbonate or polyethylene terephthalate. In one refinement, the safety insert can be made entirely of polycarbonate or polyethylene terephthalate.

The advantages of a safety insert made of polycarbonate or polyethylene terephthalate are obtained, for example, by the wear resistance, lightness and flexibility of the material.

The ink-receptive layer and/or the first UV ink-receptive layer and/or the second UV ink-receptive layer and/or the first background ink-receptive layer and/or the second background ink-receptive layer may be formed from a solvent-containing, in particular pigment-based, ink. Solvent-containing, in particular pigment-based, inks can be suitable for dissolving and at least partially penetrating the surface consisting of polycarbonate or polyethylene terephthalate during the coating process.

The advantage of using such solvent-containing, in particular pigment-based, inks for forming the ink-receiving layer or background ink-receiving layer is that the security of the security insert is increased. This makes it difficult, for example, to remove the ink-receptive layer from the transparent first layer in order to replace it by an unauthorized third party.

The ink-receptive layer and/or the first UV ink-receptive layer and/or the second UV ink-receptive layer and/or the first background ink-receptive layer and/or the second background ink-receptive layer may comprise forensic marks, in particular silicon, silicon dioxide, mica, titanium oxide and/or tin oxide.

The advantage of using such forensic marks is that the integrity of the security insert can be verified. Although such forensic marks are generally not recognizable to the naked eye, the security insert can be determined from the forensic mark by specifically inspecting it to determine whether it is an original document or a counterfeit.

The transparent first layer of the security insert may have a recess. The ink-receptive layer and/or the first UV ink-receptive layer and/or the second UV ink-receptive layer may be at least partially located in the recesses of the transparent first layer. There may also be a transparent polymer material in the recess such that at least a portion of the ink-receptive layer and/or the first UV ink-receptive layer and/or the second UV ink-receptive layer is surrounded by the first layer and the polymer material. The polymer material may in particular be thermally and/or UV curable.

Alternatively, the recesses of the transparent first layer may be filled with a lacquer layer.

In one embodiment, the polymer material and/or the lacquer layer and/or at least one transparent layer thereof can have an additive which reflects UV light in the first wavelength range and/or the second wavelength range, for example the polymer material can have a pigment which reflects UV light.

For example, the lacquer layer and/or the transparent cover layer and/or at least one of the transparent layers has nanoscale light emitters which are designed to reflect UV light of a predetermined wavelength. In one example, the nanoscale light emitter introduced into the lacquer layer of the security insert may reflect UV light of a predetermined wavelength such that a portion of the ink-receptive layer and/or the first UV ink-receptive layer and/or the second UV ink-receptive layer is obscured to an observer of the security insert when the security insert is illuminated with UV light of the predetermined wavelength.

In a refinement, the polymer material may comprise judicial markings, in particular silicon, silicon dioxide, mica, titanium oxide and/or tin oxide.

In one embodiment, the recess may be filled with a polymer material or a lacquer layer such that the polymer material terminates flush with the surface of the transparent first layer, thereby obtaining a flat overall surface without protruding and/or recessed sections.

An advantage of the recess, in which the ink layer and/or the first UV ink layer and/or the second UV ink layer is at least partially surrounded by the first layer and the polymer material or lacquer layer, is that the security against forgery is increased, since it is difficult for an unauthorized third party, for example in order to imitate a security insert, to remove or reproduce the ink layer and/or the first UV ink layer and/or the second UV ink layer without damage.

The method for producing a security insert for documents with optically recognizable marking comprises the following steps:

-providing a transparent first layer,

-providing a second layer which is transparent,

-creating a first part of the optically recognizable marking by a blackening in at least one layer by means of a laser beam,

-establishing a second part of the optically recognizable marking by applying the ink-receptive layer on the first layer.

In this regard, the order of execution of the steps is not fixed. In particular, in one embodiment, the second part of the optically recognizable marking can be created first and then the first part of the optically recognizable marking can be created.

In one variant, the method for producing a security insert for a document having an optically recognizable marking further comprises at least one of the following steps:

-creating a recess in the first layer, in particular by pressing and/or punching and/or milling.

Filling the recess with a transparent, in particular thermally and/or UV curable, polymer material or a lacquer layer.

-providing a cover layer.

Connecting at least one of the transparent layers to the cover layer and/or applying a lacquer layer to the transparent first layer.

Creating a third part of the optically identifiable marking by applying the first UV ink receptive layer on the first layer and/or on the ink receptive layer, the third part of the optically identifiable marking reflecting at least UV light of the first wavelength range,

-creating a fourth part of the optically recognisable marking by applying a second UV ink receptive layer on the first layer and/or on the ink receptive layer and/or on the first UV ink receptive layer, the fourth part of the optically recognisable marking reflecting at least UV light of the second wavelength range.

The layers may be joined by lamination. Such solvent-containing, in particular pigment-based, inks can be used for the creation of the ink-receptive layer and/or the first UV ink-receptive layer and/or the second UV ink-receptive layer, which dissolve and at least partially penetrate the surface of the first layer, in particular made of polycarbonate or polyethylene terephthalate.

In one variant of the method, a lacquer layer may be applied on the transparent first layer when the ink-applied layer and/or the first UV ink-applied layer and/or the second UV ink-applied layer has not yet completely dried/cured. The advantage here is that the adhesion or connection between the (UV) ink layer and the lacquer layer is improved, so that it becomes more difficult to separate the lacquer layer from the transparent first layer with the ink layer without damage. The security of the insert can thereby be further improved.

An apparatus for manufacturing a security insert with an optically recognizable marking for a document comprises a laser device, a printing device and a laminating device. The laser device is designed and arranged to cause a blackening by means of a laser beam at least in the transparent first layer and/or the transparent second layer. The printing device is constructed and arranged to apply an inking layer and/or a UV inking layer, which is transparent, in particular, for infrared light, on the first layer. In one refinement, the printing device is also designed to apply a lacquer layer to the first layer. Alternatively, a second printing device may be provided, which is configured to apply a lacquer layer onto the first layer. The laminating device is constructed and arranged to connect the cover layer with the transparent first layer.

An advantage of the device for producing a security insert is that it can be personalized with a high degree of security against forgery compared to a per se finished security insert printed in sheet format, for example in the form of specification ID1 or specification ID3, which is achieved by printing, laser and then providing a cover layer. Instead of the cover layer, a lacquer layer can also be applied.

According to a second aspect, a security insert for documents with optically recognizable markings comprises at least one transparent first layer and a transparent second layer. The ink-receptive layer is positioned on the transparent first layer. Furthermore, there is a first UV ink receptive layer on the first layer and/or on the ink receptive layer, the first UV ink receptive layer reflecting UV light at least in a first wavelength range. The transparent first layer and the transparent second layer are connected to each other. Wherein at least one transparent layer has a blackened portion. The first part of the optically recognizable marking is formed by a blackened section in at least one of the layers. A second portion of the optically recognizable indicia is formed from the inked layer. A third portion of the optically identifiable indicia is formed from a UV inked layer. The first and second portions of the optically identifiable indicia reflect visible light. The third portion of the optically identifiable indicia reflects UV light in at least the first wavelength range.

The advantage of such a security insert is that the entire information is optically implemented by combining three differently formed parts of the optically recognizable marking, and that different security features can be displayed by illuminating the entire information with light having different wavelengths (visible light, UV light).

In a first example, the first pattern may be illustrated by an ink-receptive layer on a transparent first layer, such that the pattern is optically recognizable during illumination with visible light. At the same time, a second pattern (which may in particular be a different pattern than the first pattern) may be shown by a blackened section in at least one of the layers, so that the pattern is also optically recognizable during illumination with visible light. The third pattern may be illustrated by the first UV inking layer such that the third pattern is visible during illumination of the pattern with UV light of the first wavelength.

In a second example, the first pattern may be shown by an ink-receptive layer on a transparent first layer and the second pattern may be shown by a blackened portion in at least one of the layers, wherein the first and second patterns at least partially overlap from the perspective of the viewer. For example, the black part of the entire pattern may be formed by a blackened portion in at least one of the layers, while the color part of the entire pattern is formed by the inking layer, so that the entire pattern is visible during irradiation with visible light. The third pattern may be illustrated by a first UV color pattern such that the third pattern is visible during illumination of the security insert with UV light of the first wavelength.

Instead of a pattern, any other type of optically recognizable marking, in particular text, can also be displayed.

In one variant, the security insert may further comprise a second UV ink-receptive layer on the first layer and/or on the ink-receptive layer and/or on the first UV ink-receptive layer. The second UV inking layer reflects at least UV light in a second wavelength range. A fourth portion of the optically identifiable indicia can be formed from the second UV inked layer.

In one example, the first pattern may be illustrated by an ink-receptive layer on a transparent first layer and the second pattern may be illustrated by a blackened portion in at least one of the layers, wherein the first and second patterns at least partially overlap from a viewer's perspective. For example, the black part of the entire pattern may be formed by a blackened portion in at least one of the layers, while the color part of the entire pattern is formed by the inking layer, so that the entire pattern is visible during irradiation with visible light. The third pattern may be shown by the first UV color pattern such that the third pattern is visible only during illumination of the security insert with UV light of the first wavelength. The fourth pattern may be shown by a second UV color pattern such that the fourth pattern is visible only during illumination of the security insert with UV light of the second wavelength.

The inking layer and/or the first UV inking layer and/or the second UV inking layer may be transparent for visible and/or infrared light. In one variant, only the first part of the optically recognizable marking formed by the blackened portion reflects infrared light.

In one example, the security insert displays first graphical information during illumination with visible light, the first graphical information being formed collectively from a first portion of the optically recognizable indicia and a second portion of the optically recognizable indicia. The safety insert displays second graphic information when illuminated with infrared light, which second graphic information is formed only by the first part of the optically recognizable marking. The third graphic information, which is formed by the third part of the optically recognizable marking, is visible upon irradiation with UV light of the first wavelength. The fourth graphic information, which is formed by the fourth part of the optically recognizable marking, is visible upon irradiation with UV light of the second wavelength.

The advantage of such a security insert is that the security against forgery is increased and at the same time the authenticity of the security insert can be checked by simple irradiation with infrared light and/or UV light. In particular, by making the black-colored part of the optical marking possible both from the blackened part in the at least one transparent layer and from the black, in particular multicolor black part of the ink application layer, it is made difficult for an unauthorized third party to produce a security insert copy which cannot be recognized as a forgery, in particular under infrared and/or UV light.

In one variation, the first UV inking layer and/or the second UV inking layer can be multi-colored UV inking layers. In particular, the UV inking layer can have color portions of red, green, blue and white (RGBW) or cyan, magenta and yellow and/or black (CMYK), which respectively reflect UV light. In a further development, further color portions can be used for the first UV inking layer and/or the second UV inking layer.

The first UV inking layer and/or the second UV inking layer can be arranged and configured to display multicolored graphical information, such as a facial image of a document holder, to an observer of the security insert during illumination of the security insert with UV light, the facial image being unrecognizable by the observer, particularly during illumination of the security insert with visible light only.

In one variation, the first UV inking layer and/or the second UV inking layer may be bi-fluorescent. In particular, the first UV ink layer provides a first color effect to an observer of the security insert during illumination of the security insert with UV light of a first wavelength and a second color effect during illumination of the security insert with UV light of a third wavelength. Furthermore, the second UV inking layer enables an observer of the security insert to obtain a third color effect during illumination of the security insert with UV light of a second wavelength and a fourth color effect during illumination of the security insert with UV light of a fourth wavelength. The first color effect, the second color effect, the third color effect, and the fourth color effect may be different from each other or at least partially the same.

For example, the first UV inking layer may enable an observer of the security insert to obtain a color effect consisting of red, green, blue and white color portions during irradiation of the security insert with UV light of a first wavelength, preferably 365nm, and a color effect consisting of green and red color portions during irradiation of the security insert with UV light of a third wavelength, preferably 254 nm.

The ink receptive layer and/or the first UV ink receptive layer and/or the second UV ink receptive layer may each be applied by means of inkjet printing.

The advantage of using color portions made of cyan, magenta and yellow is that in one variant the use of black color portions for producing the ink-receiving layer can be at least partially dispensed with, but the available color spectrum is not limited thereby. The black part of the overall pattern, which is required in the printing processes known from the prior art (cyan-magenta-yellow-black printing process, CMYK printing process according to ISO 2846) for establishing a true-color overall pattern, can be formed by a blackened section in at least one of the layers. The use of black color portions in the ink application layer can thereby be at least partially eliminated.

An advantage of using such a blackened section in a security insert for a document is that an unauthorized third party, who is intentionally counterfeiting such a security insert, cannot or hardly be able to determine in which layer the particular blackened section is located without destroying the security insert. Furthermore, in particular, the blackened section can have different reflection properties for infrared light than the ink-receptive layer and thus also contribute to the security of the security insert against forgery and to the detection of the integrity of the security insert. The use of a laser beam enables the blackened portion to be established accurately and efficiently in time-saving.

In one embodiment, the security insert may further comprise a cover layer of polycarbonate, polyethylene terephthalate or polyethylene terephthalate.

As an alternative or in addition to the transparent cover layer, the security insert can have a lacquer layer, which is applied to the transparent first layer and/or to the inking layer and/or to the first UV inking layer and/or to the second UV inking layer. For example, the lacquer layer may completely cover the surface of the transparent first layer and the ink application layer located thereon, or in another example only cover the ink application layer located on the transparent first layer and/or the first UV ink application layer and/or the second UV ink application layer. In a further development, the lacquer layer can cover the ink application layer and/or the first UV ink application layer and/or the second UV ink application layer on the transparent first layer and a part of the transparent first layer. For example, the area covered by the lacquer layer is 5 to 20 percent larger than the area of the ink layer and/or the first UV ink layer and/or the second UV ink layer on the transparent first layer.

The lacquer layer may be transparent to visible and/or infrared and/or UV light. The lacquer layer can have the same material of construction as the transparent first layer. At least a part of the lacquer layer can have a production material consisting of (meth) acrylate, polyester acrylate or polyurethane acrylate. Furthermore, the production material for the lacquer layer can be a thermally and/or UV-curable production material, in particular.

The advantage of the lacquer layer is that it cannot be removed or is difficult to remove from the transparent first layer and thus improves the security of the security insert against forgery. Furthermore, the lacquer layer may protect the transparent first layer against scratches and/or abrasion.

At least one transparent layer can have an enlarged base surface relative to another transparent layer, wherein the base surface is understood to be the size of the security insert or of the transparent layer from the perspective of an observer of the security insert. The enlarged base surface of the at least one transparent layer can advantageously be used to connect the security insert to a booklet, in particular a passport. In this case, an enlarged portion of at least one transparent layer relative to the other transparent layer serves to fix the security insert in the booklet.

The use of a background ink-receptive layer has the advantage of being able to contribute effectively to the optical perception of all the information of the security insert in terms of manufacture. The first background inking layer and the second background inking layer can include security features that further enhance the security of the security insert against counterfeiting.

The use of an antenna module and/or an RFID chip has the advantage that the security against forgery and the checking of the integrity of the security insert are further increased by electronic reading devices known from the prior art for RFID chips.

At least one of the layers may comprise a holographic element which is visible to an observer of the security insert and has a visually holographic effect. The visual hologram is optically recognizable not only under visible light but also under invisible light, in particular under infrared light or ultraviolet light.

In one variant, the holographic element may be transparent to UV light.

In a refinement, the holographic element can also be arranged between transparent layers and/or between a transparent layer and an insert. In particular, the holographic element can be arranged between the transparent first layer and the transparent second layer or between the transparent second layer and the insert.

In one embodiment, at least from the viewer's point of view, the third part of the optically recognizable marking formed by the first UV effect, in particular a plurality of colors, is superimposed with the holographic element arranged between the transparent second layer and the insert.

The lamination of at least two transparent layers has the advantage that it is difficult for unauthorized third parties, for example, to separate the layers from one another without the layers being damaged in order to produce counterfeits for the security insert.

The ink-receptive layer and/or the first UV ink-receptive layer and/or the second UV ink-receptive layer and/or the first background ink-receptive layer and/or the second background ink-receptive layer may be formed from a solvent-containing, in particular pigment-based, ink. Solvent-containing, in particular pigment-based, inks can be suitable for dissolving and at least partially penetrating the surface consisting of polycarbonate or polyethylene terephthalate during the application process.

The use of such solvent-containing inks for forming an ink-receptive layer or background ink-receptive layer has the advantage that the security of the security insert is improved. This makes it difficult to remove the ink application layer from the transparent first layer, for example, in order to replace the first ink application layer by an unauthorized third party.

The transparent first layer of the security insert may have a recess. The ink-receptive layer and/or the first UV ink-receptive layer and/or the second UV ink-receptive layer may be at least partially located in the area of the recesses of the transparent first layer. There may also be a transparent polymer material in the recess such that at least a portion of the ink-receptive layer and/or the first UV ink-receptive layer and/or the second UV ink-receptive layer is surrounded by the first layer and the polymer material. The polymer material may in particular be thermally and/or UV curable.

In a refinement, the polymer material may comprise a judicial marking, in particular silicon, silica, mica, titanium oxide and/or tin oxide.

In one embodiment, the recess can be filled with a polymer material or a lacquer layer, so that the polymer material ends flush with the surface of the transparent first layer, so that a flat overall surface without raised or recessed sections is obtained.

An advantage of the recess, in which the ink-receptive layer and/or the first UV ink-receptive layer and/or the second UV ink-receptive layer is at least partially surrounded by the first layer and the polymer material or lacquer layer, is that the security against counterfeiting is increased, since it is made more difficult to remove or reproduce the ink-receptive layer and/or the first UV ink-receptive layer and/or the second UV ink-receptive layer unbroken by an unauthorized third party, for example in order to imitate a security insert.

-providing a transparent first layer,

-providing a second layer which is transparent,

-creating a first part of the optically recognizable marking by means of a laser beam through a blackened section in at least one layer,

-establishing a second part of the optically recognisable marking by applying an ink-receptive layer on the first layer,

-creating a third part of the optically recognizable marking by applying the first UV inking layer on the first layer and/or on the inking layer, the third part of the optically recognizable marking reflecting at least UV light in the first wavelength range.

-creating recesses in the first layer, in particular by pressing and/or punching and/or milling,

filling the recess with a transparent, in particular thermally and/or UV-curable, polymer material or a lacquer layer,

-creating a fourth part of the optically identifiable marking by applying a second UV ink-receptive layer on the first layer and/or on the ink-receptive layer and/or on the first UV ink-receptive layer, the fourth part of the optically identifiable marking reflecting at least UV light in a second wavelength range,

-providing a cover layer,

connecting at least one of the transparent layers to the cover layer and/or applying a first lacquer layer to the transparent first layer.

The layers may be joined by lamination.

In order to create the ink-receptive layer and/or the first UV ink-receptive layer and/or the second UV ink-receptive layer, solvent-containing, in particular pigment-based, inks can be used, which dissolve and at least partially penetrate the surface of the first layer, in particular made of polycarbonate or polyethylene terephthalate.

An apparatus for manufacturing a security insert with an optically recognizable marking for a document comprises a laser device, a printing device and a laminating device. The laser device is designed and arranged to cause a blackening by means of a laser beam at least in the transparent first layer and/or the transparent second layer. The printing device is constructed and arranged to apply an ink-receptive layer on the first layer, the ink-receptive layer being transparent to infrared light, among other things. Furthermore, the printing device is arranged and configured to apply at least one first UV inking layer on the transparent layer and/or on the inking layer. In a refinement, the printing device can also be designed to apply a lacquer layer to the first layer. Alternatively, a second printing device may be provided, which is configured to apply a lacquer layer onto the first layer. The laminating device is configured to attach the cover layer to the transparent first layer.

The printing device, which is not only configured to apply the inking layer on the transparent first layer but also to apply the at least one first UV inking layer on the transparent first layer and/or the first inking layer, has the advantage of increasing the effectiveness of the manufacturing process and thus reducing the manufacturing costs. If in an embodiment the use of black-colored parts for the manufacture of the ink-receptive layer is eliminated, for example because the black-colored parts of the entire pattern are formed by blackened sections in at least one of the transparent layers, in this embodiment it is preferred that the printing device of the inkjet printing device is equipped with a UV-colored ink cartridge instead of a black ink cartridge.

According to a third aspect, a security insert for documents with optically recognizable markings comprises at least one transparent first layer with recesses. An ink-receptive layer is on the transparent first layer, the ink-receptive layer being transparent to infrared light. The ink-receptive layer is at least partially located in the region of the recesses on the transparent first layer. Furthermore, a transparent polymer material, in particular a lacquer layer, is present in the recesses of the transparent first layer. At least a portion of the ink receptive layer is surrounded by a transparent first layer and a transparent polymeric material, particularly a lacquer layer. The transparent first layer has a blackened portion. A first portion of the optically recognizable indicia is formed by a blackened portion in the first layer. A second portion of the optically recognizable indicia is formed from the inked layer. The first and second portions of the optically identifiable indicia are arranged and configured to reflect visible light. A first portion of the optically identifiable indicia is arranged and configured to reflect infrared light.

An advantage of the recess, in which the ink-receptive layer is at least partially surrounded by the first layer and the polymer material or lacquer layer, is that the security against forgery is increased, since it is made more difficult to remove or reproduce the ink-receptive layer without damage, for example by unauthorized third parties in order to imitate a security insert.

The security insert displays first graphical information during illumination with visible light, the first graphical information being formed by a first portion of the optically recognizable indicia and a second portion of the optically recognizable indicia. The security insert displays second graphical information when illuminated with infrared light, the second graphical information being formed by a first portion of the optically recognizable marking.

In a first example, the first pattern may be illustrated by an ink-receptive layer on a transparent first layer, such that the pattern is optically recognizable during illumination with visible light. Meanwhile, a second pattern (the second pattern is particularly different from the first pattern) may be shown by a blackened portion in the first layer. The second pattern may be obscured by the first pattern such that the second pattern is optically unrecognizable during illumination with visible light. In contrast, the security insert may only display the second pattern during illumination with infrared light. Instead of the second pattern, the text information can also be represented, for example, by a blackened portion in the first layer.

In a second example, the first pattern may be shown by an ink-receptive layer on the transparent first layer and the second pattern may be shown by a blackened portion in the transparent first layer, but the first pattern does not obscure the second pattern. Thus, the first and second patterns are visible during illumination with visible light and only the second pattern is visible during illumination with infrared light.

In a third example, the first pattern may be shown by an ink-receptive layer on a transparent first layer and the second pattern may be shown by a blackened portion of the transparent first layer, wherein the first and second patterns at least partially overlap from the perspective of the viewer. For example, the black part of the entire pattern may be formed by the blackened portion in the transparent first layer, while the color part of the entire pattern is formed by the inking layer, so that the entire pattern is visible during irradiation with visible light and only part of the pattern is visible during irradiation with infrared light.

In a fourth example, a first part of the text or pattern is shown by an inking layer, in particular by a black or multicolored black inking layer, while a second part of the text or pattern is shown by a blackened section in the transparent first layer, so that the entire text or the entire pattern is visible during illumination of the security insert with visible light and only part of the text or pattern is visible during illumination of the security insert with infrared light.

In a fifth example, for example, text containing information about the holder of the security insert can be shown by the absence of a blackened section in at least one of the transparent layers. In other words, at least one of the transparent layers has a blackened portion which comprises a missing portion, in particular in the form of a letter or other symbol, so that during the irradiation of the security insert with infrared light the letter can be identified in that the blackened portion reflects infrared light, but the missing portion in the form of a letter or other symbol does not reflect infrared light. In other words, the blackened portion displays a negative image during irradiation with infrared light. From the perspective of the observer, the missing part and/or the blackened part surrounding the missing part can be masked by color printing, for example by means of a multi-color black color that is transparent for infrared light, so that the missing part and/or the blackened part surrounding the missing part are visible only under infrared light.

The advantage of such a safety insert is that the security against forgery is improved and at the same time the authenticity of the safety insert can be checked by irradiation with infrared light. In particular, by making the black-colored part of the optical marking possible to be formed not only by a blackened part in the at least one transparent layer but also by a black, in particular multicolored black part of the inking layer, it is made difficult for an unauthorized third party to produce a security insert copy which cannot be recognized as a forgery, in particular under infrared light.

The advantage of using color portions made of cyan, magenta and yellow is that in one variant the use of black color portions for producing the ink-receiving layer can be at least partially dispensed with, but the available color spectrum is not limited thereby. The black part of the overall pattern, which is used to create the true-color overall pattern in the printing processes known from the prior art (according to ISO2846, cyan-magenta-yellow-black printing process, CMYK printing process), can be formed by a blackened section in at least one of the layers. The use of black color parts in the ink application layer can thereby be at least partially eliminated.

The transparent first layer may be blackened at least partially by the action of at least one laser beam. For this purpose, the transparent first layer can contain additives, in particular carbon-based additives. As a result, the blackened section, in particular the carbonized section, can be produced in a targeted manner with the desired intensity by the action of the laser beam.

The blackened portion can be made to have different reflective properties to infrared light than the ink-receptive layer and thus also contribute to the security of the security insert against counterfeiting and to the detection of the integrity of the security insert. The use of a laser beam enables the blackened portion to be established accurately and efficiently in time-saving.

In one variation, the first UV inking layer and/or the second UV inking layer can be multi-colored UV inking layers. In particular, the UV inking layer can have color portions of red, green, blue and white (RGBW) or cyan, magenta and yellow and/or black (CMYK), which respectively reflect UV light. In a refinement, further color portions can be used for the first UV inking layer and/or the second UV inking layer.

In one embodiment, the first UV ink receptive layer and/or the second UV ink receptive layer may be at least partially located in the area of the recesses of the transparent first layer. The polymer material, in particular the lacquer layer, located in the recess may surround at least a part of the first UV ink layer and/or the second UV ink layer together with the transparent first layer.

The polymer material, in particular the lacquer layer, may in particular be thermally and/or UV-cured.

In one embodiment, the recess can be filled with a polymer material or a lacquer layer, so that the polymer material ends flush with the surface of the transparent first layer, so that a flat overall surface without raised and/or recessed sections is obtained.

In one embodiment, the polymer material or the lacquer layer can have an additive which reflects UV light in the first wavelength range and/or the second wavelength range, for example the polymer material can have a pigment which reflects UV light.

For example, the polymer material or the lacquer layer and/or the transparent cover layer and/or at least one of the transparent layers can have nanoscale light emitters which are designed to reflect UV light of a predetermined wavelength. In one example, the nano-scale luminophores incorporated into the polymer material of the security insert may reflect UV light of a predetermined wavelength such that a portion of the ink-receptive layer and/or the first UV ink-receptive layer and/or the second UV ink-receptive layer is obscured to an observer of the security insert when the security insert is illuminated with UV light of the predetermined wavelength.

In one embodiment, the security insert may further comprise a cover layer made of polycarbonate, polyethylene terephthalate or polyethylene terephthalate.

As an alternative or in addition to the transparent cover layer, the security insert can have a lacquer layer which is applied to the transparent first layer and/or to the inking layer and/or to the first UV inking layer and/or to the second UV inking layer. For example, the lacquer layer may completely cover the surface of the transparent first layer and the ink-receptive layer located thereon, or in another example only cover the ink-receptive layer and/or the first UV ink-receptive layer and/or the second UV ink-receptive layer located on the transparent first layer. In a further development, the lacquer layer can cover the ink-receptive layer and/or the first UV ink-receptive layer and/or the second UV ink-receptive layer on the transparent first layer and a part of the transparent first layer. For example, the area covered by the lacquer layer may be 5 to 20 percent larger than the area of the ink layer and/or the first UV ink layer and/or the second UV ink layer on the transparent first layer.

The lacquer layer may be transparent to visible and/or infrared and/or UV light. The lacquer layer can have the same material of construction as the transparent first layer. At least a part of the lacquer layer can have a production material consisting of methacrylate, polyester acrylate or polyurethane acrylate. Furthermore, the production material for the lacquer layer can be a thermally and/or UV-curable production material, in particular.

Furthermore, the security insert can comprise a transparent second layer, in particular blackened by laser, a transparent third layer, in particular blackened by laser, and/or a transparent fourth layer, in particular blackened by laser.

At least one transparent layer may have an increased base surface relative to another transparent layer, wherein the base surface is understood to mean the size of the security insert or of the respective transparent layer from the viewpoint of an observer of the security insert. The enlarged base surface of the at least one transparent layer can advantageously be used to connect the security insert to a booklet, in particular a passport. In this case, an enlarged portion of at least one transparent layer relative to the other transparent layer serves to fix the security insert in the booklet.

In one variant, the holographic element may be transparent to UV light.

The holographic element may at least partially overlap a portion of the optically identifiable marker, at least from the perspective of an observer.

The advantage of using such solvent-containing inks to form the ink-receptive layer or background ink-receptive layer is that the security of the security insert is improved. This makes it difficult to remove the ink application layer from the transparent first layer, for example, in order to replace the first ink application layer by an unauthorized third party.

The method for producing a security insert for a document with an optically recognizable marking comprises the following steps:

-providing a transparent first layer,

-creating a first part of the optically recognizable marking by means of a laser beam through the blackened portion of the transparent first layer,

-structuring a recess in the first layer,

establishing a second part of the optically recognizable marking by applying the inking layer on the first layer, wherein at least a part of the inking layer is applied in the area of the recesses of the first layer,

filling the recess with a transparent polymer material, in particular with a lacquer material.

The recesses may be created in the transparent first layer by pressing and/or punching and/or milling.

In one variant, the method for producing a security insert for a document with an optically recognizable marking further comprises at least one of the following steps:

-creating a third part of the optically identifiable marking by applying the first UV ink receptive layer on the first layer and/or on the ink receptive layer, the third part of the optically identifiable marking reflecting at least UV light in the first wavelength range,

-creating a fourth part of the optically identifiable marking by applying a second UV ink receptive layer on the first layer and/or on the ink receptive layer and/or on the first UV ink receptive layer, the fourth part of the optically identifiable marking reflecting at least UV light in the second wavelength range.

An optically recognizable marking is created by means of a laser beam through the blackened section in the transparent second layer,

-providing a cover layer, the cover layer,

connecting the cover layer to the transparent first layer and/or applying a lacquer layer to the transparent first layer.

The layers may be joined by lamination.

In a variant of the method, the lacquer layer may be applied on the transparent first layer when the ink-receptive layer and/or the first UV ink-receptive layer and/or the second UV ink-receptive layer has not yet dried/cured completely. The advantage here is that the adhesion or connection between the (UV) ink layer and the lacquer layer is improved, so that it becomes more difficult to separate the lacquer layer from the transparent first layer with the ink layer without damage. The security of the insert can thereby be further improved.

The device for producing a security insert of a document having an optically recognizable marking comprises a punching device, a laser device, a printing device and/or a filling device. The stamping device is constructed and arranged to stamp a recess in the transparent first layer. The laser device is designed and arranged to cause a blackened area at least in the transparent first layer by means of a laser beam. The printing device is constructed and arranged to apply an ink-receptive layer and/or at least one UV ink-receptive layer, which is transparent, in particular, to infrared light, on the first layer. In a refinement, the printing device can also be designed to apply a lacquer layer to the first layer. Alternatively, a second printing device may be provided, which is configured to apply a lacquer layer onto the first layer. The filling device is arranged and configured to fill the recesses in the transparent first layer with a transparent polymer material or with a lacquer material. In a further development, the printing device can also be designed to fill the recesses in the transparent first layer with a transparent polymer material or with a lacquer material, so that no separate filling device is required.

In a refinement, the device for producing a security insert may also comprise a laminating device which is arranged and configured to connect the transparent first layer and the further layer and/or the cover layer to one another by lamination.

It is clear to the person skilled in the art that the solutions and features described above can be combined arbitrarily.

Drawings

Further features, characteristics, advantages and possible variants will be clear to the person skilled in the art from the following description with reference to the drawings. In this regard, the figures each show schematically and exemplarily a security insert for a document having an optically recognizable marking or a part of such a security insert. In this respect, all features described and/or shown in the figures show the object disclosed here by themselves or in combination. The dimensions and proportions of parts shown in the drawings are not drawn to scale.

Figures 1A to 1B show schematically and exemplarily exploded views of the layer structure of a security insert for documents,

figures 2A to 2D show a schematic example of an arrangement for an ink-receptive layer on a transparent first layer and for a blackened portion in one or more transparent layers,

fig. 3A-3C illustrate an embodiment of a security insert for a document, the embodiment having a first portion of an optically recognizable indicia and a second portion of an optically recognizable indicia,

fig. 4A to 4F show an embodiment of a security insert for a document, the embodiment having a recess in a transparent first layer,

fig. 5A to 5G show an embodiment of a security insert for a document, having at least one UV inking layer,

fig. 6 shows an embodiment of a security insert for a document with a first, a second, a third and a fourth part of an optically recognizable marking and a recess in a transparent first layer.

Detailed Description

Fig. 1A schematically shows the layer structure of a security insert 100 for documents. The layer structure may, for example, as shown in fig. 1A, comprise a cover layer 10, a transparent first layer 20, a transparent second layer 30, an insert 40, a transparent third layer 50 and a transparent fourth layer 60. The insert 40 is arranged between the transparent second layer 30 and the transparent third layer 50 in such a way that it completely separates the transparent second layer and the transparent third layer from one another and respectively completely bears against the surfaces of the transparent second layer 30 and the transparent third layer 50. In the example shown in fig. 1A, the insert 40 is arranged parallel to the

transparent layers

20, 30, 50, 60.

In an alternative embodiment, a printed lacquer layer (not shown) may also be included in addition to or instead of the cover layer 10 shown in fig. 1A. In the embodiment with a printed lacquer layer instead of the cover layer 10, the lacquer layer is arranged like the cover layer 10 and assumes the protective function of the surface of the security insert.

As shown in FIG. 1A, a preformed first background inking layer 32 and a preformed second background inking layer 52 are positioned on the transparent second layer 30 and the transparent third layer 50. A first background ink-receptive layer 32 is located on the surface of the transparent second layer 30 facing the cover layer 10. The second background inking layer 52 is located on the side of the transparent third layer 50 facing away from the cover layer 10.

The first background ink-receptive layer 32 and the second background ink-receptive layer 52 are printed by offset printing onto the transparent second layer 30 or the transparent third layer 50, respectively. Thus, the background ink-receiving layer 32 is disposed between the ink-receiving layer 22 and the blackened portion 34.

Fig. 1B shows an exemplary layer structure of a security insert 110 for documents instead of fig. 1A, which has an optically recognizable marking. In the embodiment shown in fig. 1B, the insert 42 is constructed and arranged to be located in a recess in the transparent second layer 30 and to be located in a recess in the transparent third layer 50. Unlike the example shown in fig. 1A, the insert 42 has a smaller extension in cross section than the transparent layer surrounding the insert.

The

inserts

40, 42 may comprise a single or multiple optically active, in particular transparent, insert layers. In one variant, if the

inlay

40, 42 also includes an antenna module and/or an RFID chip (not shown), the

inlay

40, 42 must have at least two optically active inlay layers.

Fig. 2A schematically shows a layer structure for a safety insert 200 having an ink-receptive layer 22. The ink-receptive layer 22 is located on the surface of the transparent first layer 20 facing the cover layer 10. (the ink-receptive layer 22 is shown greatly exaggerated in the schematic drawing so as to be visible in cross-section.) the transparent first layer 20 and the ink-receptive layer 22 are protected by the cover layer 10 against adverse environmental influences, such as for example the penetration of moisture or mechanical damage such as scratches.

The ink-receptive layer 22 is composed of the basic colors cyan, magenta and yellow by color printing. So-called multicolor blacks, which are formed by superimposing the primary colors, can also be formed by combining the primary colors.

To an observer viewing the security insert 200 constructed from multiple layers from the direction of the cover layer 10, the ink-receptive layer 22 is visible before the background ink-

receptive layers

32 and 52.

Fig. 2B shows a security insert 210 for a document having optically recognizable indicia. In addition to the ink layer 22, the transparent first layer 20 is shown with a blackened portion 24.

The transparent first layer 20, the transparent second layer 30, the transparent third layer 50 and the transparent fourth layer 60 are made of polycarbonate material and contain carbon-containing additives which form blackened areas, in particular under the action of laser light. The blackened portion can be formed at a desired intensity by adjusting the laser intensity and the laser action time.

The ink application layer 22 and the blackened part 24, which are composed of the basic colors cyan, magenta and yellow, complement each other in the overall pattern, at least from the viewer's point of view. Here, the black portion of the entire pattern is formed by the blackened portion 24, so that the ink-applied layer 22 does not need to include the black portion.

In another embodiment, the ink-receptive layer 22 may completely cover the blackened portion 24 of the transparent first layer 20, at least from the perspective of an observer, such that only the ink-receptive layer 22 is visible to the observer. For example, the blackened portions 24 can be completely covered by the multi-color black ink layer 22.

FIG. 2C shows a security insert 220 for a document having optically recognizable indicia. In addition to the ink layer 22, the transparent second layer 30 is shown having a blackened portion 34.

At least from the perspective of the viewer, the blackened portion 34 shown is only optically black or does not differ from the blackened portion 24 shown in fig. 2B. The fabrication and characteristics of the blackened portion 34 correspond to the blackened portion 24 as described in connection with fig. 2B. Similarly, the same applies to the blackened sections in the transparent third layer 50 and/or the transparent fourth layer 60. (not shown)

Fig. 2D shows a security insert 230 for a document with an optically recognizable marking, which comprises both a blackening 24 in the transparent first layer 20 and a blackening 34 in the transparent second layer 30. The blackened sections are located in different areas under the color print layer 22.

In other embodiments (not shown), the blackened portions may be superimposed and/or supplemented from the perspective of the viewer.

Both the blackened portion 24 and the blackened portion 34 can provide a black portion that is optically perceived by an observer of the security insert of the overall pattern and that is partially or fully covered by the ink receptive layer 22. The partial or complete optical masking of the blackened

areas

24, 34 by the ink layer 22 from the perspective of the viewer of the security insert can be caused in particular by the multicolored, black parts of the ink layer 22.

An advantage of the security insert 230 as shown in fig. 2D is that it is difficult for an observer to determine in which transparent layer the blackened area is located without destroying the security insert 230. It is difficult to counterfeit the security insert.

FIG. 3A illustrates a security insert 300 for a document having optically identifiable indicia. The security insert shown in fig. 3A comprises a transparent first layer 20 and a transparent second layer 30, each made of polycarbonate with a carbon-containing additive. The ink-receptive layer 22 is positioned on the transparent first layer 20.

Furthermore, the transparent first layer 20 has a plurality of blackened areas 24, which are formed in a targeted manner by the action of the laser beam on the carbon-containing additive contained in the transparent first layer 20.

In other embodiments (not shown), a layer without a blackened area can be produced, for example a layer consisting of polycarbonate without carbon-containing additives can also be produced.

The ink-receptive layer 22 is located on the surface of the transparent first layer 20 and is composed of the primary colors cyan, magenta and yellow by color printing. (the ink-receptive layer 22 is shown greatly exaggerated in the schematic drawing so as to be visible in cross-section.)

The ink-receptive layer 22 shown in fig. 3A does not contain black color portions, is transparent to infrared light and reflects visible light.

The ink-receptive layer 22 and the blackened portion 24 complement each other, at least from the perspective of the viewer, in an overall pattern. Here, the black portion of the entire pattern is formed by the blackened portion 24. The blackened portion 24 reflects visible light and infrared light.

Thus, the blackened portion 24 forms a first portion of the optically recognizable indicia of the security insert 300 and the ink-receptive layer 22 forms a second portion of the optically recognizable indicia of the security insert 300.

During illumination of the security insert 300 with visible light, an observer can see the entire pattern formed by the first portion of the optically recognizable indicia and the second portion of the optically recognizable indicia together. During illumination of the security insert 300 with only infrared light, only a first portion of the optically identifiable indicia is visible to an observer.

FIG. 3B illustrates a modification of the security insert 310 with optically recognizable indicia for use with a credential. The modification shown in fig. 3B includes all of the features described for fig. 3A. In fig. 3B, the transparent second layer 30 also has at least one blackened section 34. The blackened portion 34 is formed by irradiating the transparent second layer 30 with laser light similarly to the blackened portion 24.

Like the blackened portions 24, the blackened portions 34 also complement the ink-receptive layer 22, at least in the overall pattern from the perspective of the viewer. In the modification shown in fig. 3B, the black portion of the entire pattern is formed not only by the blackened portion 24 but also by the blackened portion 34. The blackened section 34 forms together with the blackened section 24 a first part of the optically recognizable marking which reflects not only visible light but also infrared light.

FIG. 3C shows a modification of the security insert 320 with optically recognizable indicia for a document. The modification shown in fig. 3C includes all of the described features of fig. 3A and 3B.

With respect to fig. 3A and 3B, fig. 3C also includes a cover layer 10, an insert 40, a transparent third layer 50, a transparent fourth layer 60, a first background inking layer 32, and a second background inking layer 52.

A first background inking layer 32 is located on the surface of the transparent second layer 30 facing the cover layer 10. A second background ink-receptive layer 52 is located on the surface of the transparent third layer 50 facing away from the cover layer 10.

In other embodiments (not shown), a number of other background inking layers may be positioned on the transparent layer and/or the insert.

The cover layer 10 shown in fig. 3C is transparent to visible and/or infrared light, while the insert 40 shown is opaque to visible and infrared light.

In a refinement (not shown), one of the

transparent layers

20, 30, 50, 60 and/or the insert 40 comprises a holographic element which is visible to an observer of the security insert 320 and has a visually holographic effect. The visual hologram is optically recognizable not only in visible light but also in invisible light, in particular in infrared light and/or ultraviolet light.

In one variant, the holographic element may be transparent to UV light.

The holographic element may at least partially overlap a portion of the optically recognizable marking, at least from the perspective of an observer.

In a refinement, the holographic element can also be arranged between the

transparent layers

20, 30, 50, 60 and/or the insert 40. In particular, the holographic element can be arranged between the transparent first layer 20 and the transparent second layer 30 or between the transparent second layer 30 and the insert 40.

The insert 40 is arranged between the transparent second layer 30 and the transparent third layer 50 in such a way that it completely separates the transparent second layer and the transparent third layer from one another and respectively completely bears against the surfaces of the transparent second layer 30 and the transparent third layer 50. In the example shown in fig. 3C, the insert 40 is arranged parallel to the

transparent layers

20, 30, 50, 60.

In a further variant (not shown), the inlay 40 can have at least two optically active inlay layers, which include RFID chips and/or antenna elements.

Fig. 4A and 4B show by way of example the layer structure of a

security insert

400, 410 for a document with optically recognizable identification, which security insert has a recess.

The security inserts 400, 410 shown in fig. 4A and 4B include a transparent first layer 20 and a transparent second layer 30, respectively, each made of polycarbonate with a carbon-containing additive.

The transparent first layer 20 shown in fig. 4A has recesses. The recess may have a depth of 40 to 80 μm, for example. The transparent second layer 30 has a blackened portion 34 that is at least partially located beneath the recess from the perspective of an observer of the security insert 400. The blackened areas 34 are formed by the action of the laser beam onto the carbon-containing additive contained in the transparent second layer 30.

Fig. 4B shows, in addition to the features shown in fig. 4A, an ink-receptive layer 22, which is located in a recess of the transparent first layer 20. The ink-receptive layer 22 is composed of the basic colors cyan, magenta and yellow by color printing. The ink-applied layer does not protrude above the recess. (the ink-receptive layer 22 is shown greatly exaggerated in the schematic drawing so as to be visible in cross-section.)

In one embodiment (not shown), the contour of the recess may substantially match the graphical information formed by the first part of the optically recognizable marking and the second part of the optically recognizable marking.

The ink-deposited layer 22 shown in fig. 4A and 4B does not contain black color portions, is transparent to infrared light, and reflects visible light.

The ink-receptive layer 22 and the blackened portion 34, which are composed of the basic colors cyan, magenta and yellow, complement each other in an overall pattern, at least from the viewer's perspective. Here, the black portion of the entire pattern is formed by the blackened portion 34. The blackened portion 34 reflects not only visible light but also infrared light.

Thus, the blackened portion 34 forms a first part of the optically recognizable indicia of the

security insert

400, 410 and the ink-receptive layer 22 forms a second part of the optically recognizable indicia of the

security insert

400, 410.

During illumination of the

security insert

400, 410 with visible light, an observer can see the entire pattern formed by the first portion of the optically recognizable indicia and the second portion of the optically recognizable indicia together. During illumination of the

security insert

400, 410 with only infrared light, the viewer can only see the first portion of the optically identifiable indicia.

Fig. 4C shows by way of example the layer structure of a security insert 420 for a document with an optically recognizable marking, which has recesses which are filled with a polymer material. The polymeric material may in particular be a lacquer material.

Fig. 4C includes all of the features of fig. 4A and 4B. In addition, fig. 4C shows a polymer material 26 located in a recess of the transparent first layer 20. The illustrated polymeric material 26 is transparent to visible and invisible light, particularly ultraviolet or infrared light, and is thermally curable.

In one embodiment (not shown), the polymer material can have an additive which reflects UV light in the first wavelength range and/or in the second wavelength range, in particular a pigment which reflects UV light.

In a refinement (not shown), the polymer material may comprise judicial markers, in particular silicon, silicon dioxide, mica, titanium oxide and/or tin oxide.

The polymeric material 26 located in the recesses of the transparent first layer 20 terminates flush with the surface of the transparent first layer 20 such that the entire surface of the transparent first layer 20 and the polymeric material 26 is planar with no raised or recessed sections.

Fig. 4D shows, by way of example, the layer structure of a security insert 430 for a document with an optically recognizable marking, which has a recess which is filled with a polymer material.

Fig. 4D includes all of the features of fig. 4C. Further, fig. 4D shows the blackened portions 24 in the first layer 20. From the perspective of the viewer, the blackened portions 24 in the transparent first layer 20 and the blackened portions 34 in the transparent second layer 30 are located in different areas beneath the ink-receptive layer 22.

In other embodiments (not shown), the blackened sections are superimposed and/or supplemented from the perspective of the viewer.

The blackened portion 24 is formed by irradiating the transparent first layer 20 with laser light similarly to the blackened portion 34.

areas

24, 34 by the ink layer 22 from the perspective of the viewer of the security insert can be caused in particular by the multicolored, dark parts of the ink layer 22.

FIG. 4E shows a modification of the security insert 440 with optically recognizable indicia for a document. The modification shown in fig. 4E includes all of the features of fig. 4D.

With respect to fig. 4D, fig. 4E also includes the cover layer 10, the insert 40, the transparent third layer 50, the transparent fourth layer 60, the first background inking layer 32, and the second background inking layer 52.

In particular in embodiments in which the ink-receiving layer of the safety insert is completely surrounded by the polymer material, which may be in particular a lacquer material, and the transparent first layer, the transparent cover layer can be dispensed with. The first layer, which is transparent in this embodiment, is the outermost layer of the security insert.

A first background inking layer 32 is located on the surface of the transparent second layer 30 facing the cover layer 10. Further, the first background ink-applied layer 32 is disposed between the ink-applied layer 22 and the blackened portion 34. A second background ink-receptive layer 52 is located on the surface of the transparent third layer 50 facing away from the cover layer 10.

In other embodiments (not shown), a number of other background ink-receptive layers may be positioned on the transparent layer and/or the insert.

In embodiments in which the security insert has a printed lacquer layer in addition to or instead of the covering layer 10, the recess can be filled with a lacquer material which simultaneously forms the lacquer layer. In other words, in this embodiment the lacquer layer and the material filling the recesses can be configured in one piece and introduced/applied in particular by a printing process in the recesses or on the transparent first layer (not shown).

In one refinement, the polymer material or the lacquer material can have nanoscale luminophores, which reflect UV light of a predetermined wavelength. If the security insert is irradiated with UV light of a predetermined wavelength, the UV light reflected by the polymer material or the lacquer material (or the luminophores contained therein) masks the ink layer lying thereunder or the blackened sections lying thereunder/the optical markings lying thereunder to the observer.

The cover layer 10 shown in fig. 4E is transparent to visible and infrared light, while the insert 40 shown is opaque to visible and infrared light.

The insert 40 is arranged between the transparent second layer 30 and the transparent third layer 50 in such a way that it completely separates the transparent second layer and the transparent third layer from one another and respectively completely bears against the surfaces of the transparent second layer 30 and the transparent third layer 50. In the embodiment shown in fig. 4E, the insert 40 is arranged parallel to the

transparent layers

20, 30, 50, 60.

In one refinement (not shown), one of the

transparent layers

20, 30, 50, 60 and/or the insert 40 includes a holographic element that is visible to an observer of the security insert 440 and has a visually holographic effect. The visual hologram is optically recognizable not only in visible light but also in invisible light, in particular in infrared light and/or ultraviolet light.

The holographic element may be at least partially superimposable, at least from the perspective of an observer, with a portion of the optically identifiable marking.

In a further development (not shown), the holographic element can also be arranged between transparent layers and/or inserts. In particular, the holographic element can be arranged between the transparent first layer and the transparent second layer or between the transparent second layer and the insert.

In a further development (not shown), the inlay 40 has at least two opaque inlay layers, which surround the RFID chip and/or the antenna elements.

FIG. 4F shows an alternative modification of a security insert 450 with optically identifiable identification for a document. The modification shown in fig. 4F includes all of the features described in fig. 4E except for the insert 40. The illustrated insert 42 is constructed and arranged to be located in a recess in the transparent second layer 30 and in a recess in the transparent third layer 50. Unlike the example shown in fig. 4E, the insert 42 has a smaller extension in cross section than the

transparent layers

30, 50 surrounding the insert.

Fig. 5A shows a security insert 500 with optically recognizable indicia for a document having a first UV ink receptive layer 28.

The security insert 500 shown in fig. 5A includes a transparent first layer 20 and a transparent second layer 30, each made of polycarbonate with a carbon-containing additive. An ink-receptive layer 22 is positioned on the transparent first layer 20.

Furthermore, the transparent first layer 20 has a plurality of blackened areas 24 (only one blackened area 24 is schematically illustrated as a representation), which are formed in a targeted manner by the action of the laser beam onto the carbon-containing additive contained in the transparent first layer 20.

An ink-receptive layer 22 is located on the surface of the transparent first layer 20. (the ink-receptive layer 22 is shown greatly exaggerated in the schematic drawing so as to be visible in cross-section.)

The ink-applied layer 22 shown in fig. 5A does not contain black color portions and reflects visible light and UV light.

In other embodiments (not shown), the ink-receptive layer 22 may be transparent to UV light.

The ink-receptive layer 22 and the blackened portion 24, which are composed of the basic colors cyan, magenta and yellow, complement each other, at least from the viewer's point of view, in a complete pattern. Here, the black portion of the entire pattern is formed by the blackened portion 24.

Thus, the blackened portion 24 forms a first portion of the optically recognizable indicia of the security insert 500 and the ink-receptive layer 22 forms a second portion of the optically recognizable indicia of the security insert 500.

Further, fig. 5A shows a first UV inking layer 28, which is located on the inking layer 22. The first UV inking layer 28 is transparent to visible light and reflects UV light of the first wavelength and forms a third portion of the optically identifiable indicia of the security insert 500. (the UV inking layer 28 is shown greatly exaggerated in the schematic drawings so as to be visible in cross-section.)

During illumination of the security insert 500 with visible light, an observer can see the entire pattern formed by the first portion of the optically recognizable indicia and the second portion of the optically recognizable indicia together. During illumination of the security insert 500 with only UV light of the first wavelength, the viewer may see a third portion of the optically identifiable indicia.

Fig. 5B shows a modification of a security insert 510 for a document with an optically recognizable marking, which security insert has a first UV inking layer 28. The modification shown in fig. 5B includes all of the features described in fig. 5A. In addition, the transparent second layer 30 in fig. 5B also has at least one blackened area 34. The blackened portion 34 is formed by irradiating the transparent second layer 30 with laser light similarly to the blackened portion 24.

The blackened section 34 of the transparent second layer 30 and the blackened section 24 of the transparent first layer 20 together form a first part of an optically recognizable marking of the security insert 510.

From the perspective of the viewer, the blackened portions 34 of the transparent second layer 30 shown in fig. 5B are not covered by the ink-receptive layer 22. The illustrated blackened section 34 of the transparent second layer 30 is optically recognizable similar to the blackened section 24 in the transparent first layer 20, but not superimposed with the ink-receptive layer 22. In the variant shown in fig. 5B, the blackened sections 34 of the transparent second layer 30 form individual optically recognizable markings which are formed exclusively by the blackened sections.

Further, fig. 5B shows a portion of the first UV inking layer 28 on the inking layer 22 and a portion of the first UV inking layer 28 on the surface of the transparent layer 22. Thus, the third portion of the optically recognizable indicia formed by the UV inking layer 28 only partially overlaps the first or second portion of the optically recognizable indicia.

Fig. 5C and 5D show further embodiments of a

security insert

520, 530 with optically recognizable identification for a document, having a first UV inking layer 28, by way of example.

Fig. 5C shows, similar to fig. 5A, the transparent first layer 20, the blackened portion 24, the transparent second layer 30, the ink-applied layer 22, and the first UV ink-applied layer 28. Similar to fig. 5A, a first portion of the optically recognizable indicia is formed by the blackened portion 24, a second portion of the optically recognizable indicia is formed by the inking layer 22 and a third portion of the optically recognizable indicia is formed by the first UV inking layer 28.

In the embodiment shown in fig. 5C, the third portion of the optically recognizable indicia overlies the first portion of the optically recognizable indicia and does not overlie the second portion of the optically recognizable indicia. Thus, during illumination of the security insert 520 with visible light, an observer may see the structure with the first and second portions of the optically identifiable indicia not superimposed. While the superimposed structure of the first, second, and third portions of the optically identifiable indicia is visible during illumination of the security insert 520 with UV light of the first wavelength.

Fig. 5D shows, similar to fig. 5A, the transparent first layer 20, the blackened portion 24, the transparent second layer 30, the ink-applied layer 22, and the first UV ink-applied layer 28. Similar to fig. 5A, a first portion of the optically recognizable indicia is formed by the blackened portion 24, a second portion of the optically recognizable indicia is formed by the inking layer 22 and a third portion of the optically recognizable indicia is formed by the first UV inking layer 28.

From the perspective of the viewer, the blackened portion 34 of the transparent second layer 30 shown in fig. 5D is not covered by the ink-applied layer 22. The illustrated blackened portion 34 of the transparent second layer 30 is optically recognizable similar to the blackened portion 24 in the transparent first layer 20, but does not form the entire pattern with the ink-receptive layer 22. In the variant shown in fig. 5D, the blackened section 34 of the transparent second layer 30 forms an optically recognizable marking consisting of only blackened sections.

Furthermore, in the embodiment shown in fig. 5D, only a portion of the ink-receptive layer 22 is covered by the first UV ink-receptive layer 28. But the blackened portion 24 of the transparent first layer is completely covered.

Thus, during illumination of the security insert 530 with visible light, an observer can see the structure of the first and second portions of the optically recognizable indicia superimposed and the structure of the first portion of the optically recognizable indicia not superimposed with the second portion of the optically recognizable indicia.

While the superimposed structure of the first portion, the second portion, and the third portion of the optically identifiable indicia is visible during illumination of the security insert 530 with UV light at the first wavelength.

Fig. 5E and 5F exemplarily show one of the security inserts 540, 550 with optically recognizable identification for documents having a first UV ink-receptive layer 28 and a second UV ink-receptive layer 29.

The security inserts 540, 550 shown in fig. 5E and 5F comprise a transparent first layer 20 and a transparent second layer 30, each made of polycarbonate with a carbon-containing additive. A corresponding ink-receptive layer 22 is positioned on the transparent first layer 20.

Furthermore, the transparent first layer 20 has a plurality of blackened sections 24, which are formed in a targeted manner by the action of the laser beam on the carbon-containing additive contained in the transparent first layer 20.

Similarly, the transparent second layer 30 has a plurality of blackened sections 34 (only one blackened section is schematically illustrated as a representation), which are formed by the action of the laser beam onto the carbon-containing additive contained in the transparent second layer 30.

The ink-applied layer 22 shown in fig. 5E and 5F does not contain a black color portion, and reflects visible light and UV light. In other embodiments (not shown), the ink-receptive layer 22 may be transparent to UV light.

The ink-receptive layer 22 and the blackened portion 24, which are composed of the basic colors cyan, magenta and yellow, complement each other, at least from the viewer's point of view, in a complete pattern. Here, the black portion of the entire pattern is formed at least partially by the blackened portion 24.

The blackened

portions

24 and 34 form a first part of the optically recognizable indicia of the

security insert

540, 550 and the ink receptive layer 22 forms a second part of the optically recognizable indicia of the security insert. From the perspective of the viewer, the blackened portions 34 of the transparent second layer 30 are not covered by the ink-receptive layer 22. The illustrated blackened portion 34 of the transparent second layer 30 is optically recognizable, similar to the blackened portion 24 in the transparent first layer 20, but forms separate optically recognizable information that is spatially separated from information that is perceptible to an observer under visible light by the combination of the blackened portion 24 and the ink-receptive layer 22.

Further, fig. 5E and 5F show the first UV inking layer 28, which is located on the inking layer 22. The first UV inking layer 28 is transparent to visible light and reflects UV light of the first wavelength and forms a third portion of the optically identifiable identification of the

security insert

540, 550.

Further, fig. 5E and 5F show a second UV inking layer 29, which is transparent for visible light and reflects UV light of a second wavelength. The second UV inking layer 29 forms the fourth part of the optically recognizable marking of the

security insert

540, 550.

In the embodiment shown in fig. 5E, not only the first UV ink-receptive layer 28 but also the second UV ink-receptive layer 29 are respectively located on a portion of the ink-receptive layer 22. In other embodiments (not shown), the first UV inking layer 28 and/or the second UV inking layer 29 only partially overlaps the inking layer 22.

In the embodiment shown in fig. 5F, a first UV inking layer 28 is located on the inking layer 22 and a second UV inking layer 29 is located on the UV inking layer 28.

During illumination of the

security insert

540, 550 shown in fig. 5E and 5F with visible light, the entire pattern collectively formed by the first portion of the optically recognizable indicia and the second portion of the optically recognizable indicia is visible to an observer. Furthermore, a first part of the optically recognizable marking is also visible which is not superimposed by a second part of the optically recognizable marking.

During illumination of the

security insert

540, 550 with UV light of the first wavelength, the viewer may see a third portion of the optically identifiable indicia.

During illumination of the

security insert

540, 550 with UV light of the second wavelength, a fourth portion of the optically recognizable indicia is visible to the viewer.

Fig. 5G shows a security insert 560 with an ink-receptive layer 22, a first UV ink-receptive layer 28 and a second UV ink-receptive layer 29. In fig. 5G the first UV inking layer 28 and the second UV inking layer 29 are multi-colored UV inking layers. The first UV ink receptive layer 28 and the ink receptive layer 22 are positioned on the transparent first layer 20. A second UV ink-receptive layer 29 is positioned on the ink-receptive layer 28. In the embodiment shown in fig. 5G, the ink-receptive layer 22 reflects both visible and UV light.

In the embodiment shown in fig. 5G, the third portion of the optically identifiable indicia formed by the first UV inking layer 28 during illumination of the security insert 560 with UV light of the first wavelength shows an image of the face of an observer of the security insert 560, e.g., the holder of the security insert 560.

The same facial image is displayed in the embodiment shown in fig. 5G with the first portion of the optically recognizable indicia formed by the blackened portion 24 and the second portion of the optically recognizable indicia formed by the ink-applied layer 22.

Thus, during illumination of the security insert 560 with visible light, a facial image made up of the first and second portions of the optically recognizable indicia is visible. During illumination of the security insert 560 with UV light, a facial image made up of the first and second portions of the optically recognizable indicia is visible and additionally the same facial image made up of the third portion of the optically recognizable indicia is visible. The face images can thus be compared with one another, which makes it difficult, for example, to replace the historical images by unauthorized images.

In the embodiment shown in fig. 5G, the second UV ink-receptive layer 29 is bifluorescent and forms a fourth portion of the optically recognizable indicia, which additionally forms a security feature. Thus, during illumination of the security insert 560 with UV light of wavelength 313nm, the second UV inking layer 29 displays a security feature having a red color effect to an observer of the security insert 560. During illumination of the security insert 560 with UV light at a wavelength of 365nm, the security insert 560 displays a security feature with a blue color effect to an observer.

Fig. 6 shows a security insert 600 with optically recognizable indicia for a document having a first UV ink receptive layer and a second UV ink receptive layer.

Fig. 6 shows a cover layer 10, a transparent first layer 20, a transparent second layer 30, an insert 42, a transparent third layer 50 and a transparent fourth layer 60.

In an alternative embodiment, the security insert may also comprise a printed lacquer layer (not shown) in addition to or instead of the covering layer 10 shown in fig. 6. In the embodiment with a printed lacquer layer instead of the cover layer 10, the lacquer layer is arranged like the cover layer 10 and assumes its protective function for the surface of the security insert.

The insert 42 is located in a recess in the transparent second layer 30 and in a recess in the transparent third layer 50.

The transparent first layer 20, the transparent second layer 30, the transparent third layer 50 and the transparent fourth layer 60 are made of a polycarbonate material and contain carbon-containing additives which form blackened areas, in particular under the action of laser light. The blackened portions can be formed at a desired intensity by adjusting the laser intensity and the laser application time.

The transparent first layer 20 has a plurality of blackened sections 24, which are formed by the action of a laser beam onto the carbon-containing additive contained in the transparent first layer 20.

Similarly, the transparent second layer 30 has a plurality of blackened sections 34 (only one blackened section is schematically shown) which are formed by the action of the laser beam onto the carbon-containing additive contained in the transparent second layer 30.

In one refinement (not shown), one of the

transparent layers

20, 30, 50, 60 and/or the insert 40 includes a holographic element that is visible to an observer of the security insert 440 and has a visually holographic effect. The visual holographic effect can be optically recognizable not only under visible light but also under invisible light, in particular under infrared light and/or ultraviolet light.

In an embodiment (not shown), the holographic element may at least partially overlap with the third and/or fourth part of the optically recognizable marking.

In a further development (not shown), the inlay 42 can have at least two opaque inlay layers, which surround the RFID chip and/or the antenna elements.

Further, fig. 6 shows the first background ink-receptive layer 32 and the second background ink-receptive layer 52. A first background ink-receptive layer 32 is located on the surface of the transparent second layer 30 facing the cover layer 10. A second background ink-receptive layer 52 is located on the surface of the transparent third layer 50 facing away from the cover layer 10.

The transparent first layer 20 shown in fig. 6 has recesses.

Furthermore, fig. 6 shows an ink-applied layer 22, which is partially located in the recess of the transparent first layer 20. (the ink-receptive layer 22 is shown greatly exaggerated in the schematic drawing so as to be visible in cross-section.)

The ink-receptive layer 22 is composed of the basic colors cyan, magenta and yellow by color printing.

The ink-applied layer 22 shown in fig. 6 does not contain black color portions, is transparent to infrared light and reflects visible and ultraviolet light.

The ink-receptive layer 22 and the blackened

portions

24, 34 complement each other, at least from the perspective of the viewer, in an overall pattern. Here, the black portions of the entire pattern are formed by the blackened

portions

24, 34. The blackened

portions

24, 34 reflect not only invisible light, particularly ultraviolet light and infrared light; visible light is also reflected.

Further, fig. 6 shows a polymer material 26, which is located in a recess of the transparent first layer 20. The illustrated polymeric material 26 is transparent to visible and invisible light, particularly ultraviolet or infrared light, and is thermally curable.

The polymeric material 26 located in the recesses of the transparent first layer 20 terminates flush with the surface of the transparent first layer 20 such that the entire surface of the transparent first layer 20 and the polymeric material 26 form a plane without raised or recessed sections.

The transparent polymeric material in the recess, together with the transparent first layer 20, surrounds a portion of the ink layer 22.

Further, fig. 6 shows a first UV ink receptive layer 28, which is positioned on the ink receptive layer 22. The first UV inking layer 28 is transparent to visible and infrared light and reflects UV light of a first wavelength.

Further, fig. 6 shows a second UV inking layer 29, which is transparent for visible and infrared light and reflects UV light of a second wavelength. The second UV ink-receptive layer 29 is positioned on the first UV ink-receptive layer 28.

Thus, the blackened

portions

24, 34 form a first portion of the optically recognizable indicia of the security insert 600 and the ink-receptive layer 22 forms a second portion of the optically recognizable indicia of the security insert 600. The first UV ink-receptive layer 28 forms a third portion of the optically recognizable indicia and the second UV ink-receptive layer 29 forms a fourth portion of the optically recognizable indicia.

If the security insert 600 is illuminated with visible light, the first and second portions of the optically recognizable indicia are visible to the viewer, wherein the first and second portions of the optically recognizable indicia partially overlap and thus form the entire pattern.

If the security insert 600 is illuminated with infrared light, only a first portion of the optically identifiable indicia is visible to an observer.

If the security insert 600 is illuminated with UV light of the first wavelength, a third portion of the optically identifiable indicia is visible.

If the security insert 600 is illuminated with UV light of a second wavelength, a fourth portion of the optically identifiable indicia is visible.

It should be understood that the exemplary embodiments described above are not intended to be exhaustive and are not limited to the subject matter disclosed herein. In particular, it is clear to the person skilled in the art that the features described can be combined with one another as desired and/or that different features can be omitted without departing from the object disclosed here.

Claims

1. A security insert for a document having an optically identifiable identifier, the security insert comprising:

at least one transparent first layer (20) having recesses, and

a color coating (22) on the transparent first layer (20) and

A transparent polymeric material (26) located in the recess, wherein,

the color coating (22) is located at least partially in the region of the recesses on the first layer (20), and

at least a portion of the color coating (22) is surrounded by the first layer (20) and the polymeric material (26), and

the color coating (22) is transparent to infrared light, an

A first part of the optically recognizable marking is formed by a blackened layer (24) in the at least one transparent first layer,

a second part of the optically recognizable marking is formed by the color coating (22),

such that the first and second portions of the optically recognizable indicia reflect visible light and the first portion of the optically recognizable indicia reflects infrared light,

wherein the polymer material (26) comprises an additive that reflects UV light, or wherein the polymer material (26) comprises a forensic mark.

2. The security insert with optically recognizable indicia for a document according to claim 1, wherein the color coating (22) comprises differently colored portions consisting of cyan, magenta and yellow.

3. The security insert with optically recognizable marking for a document according to claim 1 or 2, characterized in that the transparent first layer (20) is blackened by the action of at least one laser beam.

4. The security insert with optically identifiable identification for a document of claim 1 or 2, further comprising:

transparent cover layer (10) and/or

An insert (40) comprising at least one opaque first insert layer, and/or

A transparent second layer (30) which requires blackening by means of a laser, and/or

A transparent third layer (50) which requires blackening by means of a laser, and/or

A transparent fourth layer (60) which requires blackening by means of a laser, and/or

A first background color coating (32) on the second layer (30), and/or

A second background color coating (52) on the third layer (50).

5. The security insert with optically recognizable indicia for a document according to claim 4, wherein the inlay (40) comprises an opaque second inlay layer, and/or an assembly of electronic components.

6. The security insert with optically recognizable marking for a document according to claim 4, wherein at least one of the transparent first layer (20), the transparent second layer (30), the insert (40), the transparent third layer (50) and the transparent fourth layer (60) comprises a holographic element, and/or wherein at least one holographic element is arranged between two of the transparent first layer (20), the transparent second layer (30), the transparent third layer (50) and the transparent fourth layer (60) or between one of the transparent first layer (20), the transparent second layer (30), the transparent third layer (50) and the transparent fourth layer (60) and the insert (40), and/or wherein, at least one of the transparent first layer (20), the transparent second layer (30), the transparent third layer (50) and the transparent fourth layer (60) is connected by lamination to another of the transparent first layer (20), the transparent second layer (30), the transparent third layer (50) and the transparent fourth layer (60) and/or to the cover layer (10) and/or to the insert (40).

7. The security insert with optically recognizable indicia for a document according to claim 4, wherein at least one of the transparent first layer (20), the transparent second layer (30), the transparent third layer (50) and the transparent fourth layer (60) is made of polycarbonate or polyethylene terephthalate.

8. The security insert with optically recognizable marking for a document according to claim 4, characterized in that the color coating (22) and/or the first background color coating (32) and/or the second background color coating (52) are formed by a solvent-containing, pigment-based ink, wherein the solvent-containing, pigment-based ink is adapted to dissolve and at least partially penetrate a surface consisting of polycarbonate or polyethylene terephthalate during the coating process, and/or the color coating (22) and/or the first background color coating (32) and/or the second background color coating (52) comprise forensic marks.

9. The security insert for documents having optically recognizable indicia of claim 1 or 2, further comprising:

a lacquer layer applied on the transparent first layer (20) and/or on the color coating (22) and/or on a first UV color coating (28) and/or on a second color coating (29) on a portion of the color coating (22), wherein,

The lacquer layer is transparent to visible and/or infrared and/or UV light, and/or

At least one part of the lacquer layer comprises a manufacturing material consisting of methacrylate or polyester acrylate, and/or

The lacquer layer has a thermally and/or UV curable production material.

10. A security insert for documents having optically recognizable indicia according to claim 4,

the polymer material (26) is a lacquer layer, and/or

The polymer material (26) is at least partially of the same material of manufacture as the paint layer according to claim 9, and/or

The polymer material (26) and the lacquer layer according to claim 9 are constructed in one piece from the same material.

11. The security insert with optically recognizable marking for a document according to claim 10, characterized in that the lacquer layer and/or the transparent cover layer (10) and/or wherein at least one of the transparent first layer (20), the transparent second layer (30), the insert (40), the transparent third layer (50) and the transparent fourth layer (60) has nano-scaled light emitters configured to reflect UV light of a predetermined wavelength.

12. The security insert with optically recognizable marking for a document according to claim 1 or 2, characterized in that the polymer material (26) is thermally and/or UV curable, and/or

The polymer material (26) contains an additive that reflects UV light.

13. The security insert with optically recognizable indicia for a document according to claim 12, wherein the additive is a nano-sized luminophore.

14. The security insert with optically recognizable indicia for a document according to claim 5, wherein the electronic component is an antenna module and/or an RFID chip.

15. The security insert with optically recognizable indicia for a document according to claim 8, wherein the forensic mark is silicon, silica, mica, titanium oxide and/or tin oxide.

16. A method of manufacturing a security insert for a document having an optically identifiable marking, the manufacturing method comprising the steps of:

-providing a transparent first layer (20),

-establishing a first part of the optically recognizable marking by means of a laser beam through a blackened layer (24) in the transparent first layer (20),

-establishing a recess in the first layer (20),

-establishing a second part of the optically identifiable marking by applying a color coating (22) on the first layer (20), wherein at least a part of the color coating (22) is applied in the area of the recesses of the first layer (20), and wherein the first and second parts of the optically identifiable marking reflect visible light and the first part of the optically identifiable marking reflects infrared light,

-filling the recess with a transparent polymer material (26), wherein the polymer material (26) comprises an additive that reflects UV light, or wherein the polymer material (26) comprises a forensic mark.

17. A method of manufacturing a security insert with optically recognizable indicia for a document according to claim 16,

the color coating (22) is applied to the first layer (20) using such a solvent-containing, pigment-based ink, which dissolves and at least partially penetrates the surface of the first layer (20) made of polycarbonate or polyethylene terephthalate.

18. Method of manufacturing a security insert with optically recognizable marking for a document according to claim 16 or 17,

the recess is created by pressing and/or punching and/or milling.

19. Apparatus for manufacturing a security insert for documents having an optically recognizable marking according to claim 4, the apparatus comprising:

a laser device arranged and configured to create a blackened layer in the transparent first layer (20) by means of a laser beam, and

a stamping device arranged and configured to press a recess in the first layer (20), an

A printing device arranged and configured to apply a color coating (22) on a transparent first layer (20), and

a filling device arranged and configured to fill a recess in the first layer (20) with a transparent polymer material (26), wherein the polymer material (26) comprises an additive that reflects UV light, or wherein the polymer material (26) comprises a forensic marking.

20. Apparatus for manufacturing a security insert with optically identifiable identification for a document according to claim 19,

wherein the printing unit and the filling unit are jointly formed in one device, and/or

Wherein there is also a laminating device arranged and configured to connect the transparent first layer (20) and one of the transparent second layer (30), the transparent third layer (50) and the transparent fourth layer (60) and/or to a cover layer (10) to each other by lamination.