WO2017005633A1

WO2017005633A1 - Security or value document comprising a luminescent feature and method for checking the authenticity of the security or value document

Info

Publication number: WO2017005633A1
Application number: PCT/EP2016/065530
Authority: WO
Inventors: Roland Gutmann; Alexander MOMBRÉE; Olga KOSIOR; Peter Paul; Reiner Zimmer
Original assignee: Bundesdruckerei Gmbh
Priority date: 2015-07-03
Filing date: 2016-07-01
Publication date: 2017-01-12
Also published as: EP3317114A1; EP3317114B1; DE102015212492A1; DE102015212492A9

Abstract

In order to create a forgery-proof security feature, a security or value document (100) is disclosed which is formed from a document body (150). The document body (150) is produced by laminating at least two polymer layers (120, 130, 140) connected to each other and comprises at least one window region (210, 210', 210"), wherein in the at least one window region (210, 210', 210") there are at least one absorption element (300, 300', 300") and at least one luminescent element (400) overlapping with the at least one absorption element (300, 300', 300"). At least the at least one absorption element (300, 300', 300") is formed using a thermoplastic material.

Description

Security or value document with a luminescent feature and method for checking the authenticity of the security or value document

description

Field of the invention:

The present invention relates to a security or value document which is produced from a document body, wherein the document body has at least one window area and at least one absorption element and at least one luminescence element in the window area. Furthermore, the present invention also relates to a method for checking the authenticity of the security or value document according to the invention.

Prior art and background of the invention:

Card-shaped security or value documents serve, for example, for the identification of persons and / or objects and / or for cashless payment transactions. Among other things, they have visually identifiable features which they clearly assign to a person and / or an object and / or a money or securities account and / or another subject and only allow the owner to identify himself / herself or the object or to have the account or other subject and to arrange, for example, money transfers. For this reason, these documents must have security features that make it practically impossible for unauthorized persons, or at least make it significantly more difficult to falsify or falsify the cards, so that abuse can be practically prevented. In addition, a fake should therefore be easily recognizable.

To secure security and value documents against counterfeiting or falsification has been a variety of different security features have been proposed and implemented, such as guilloches, watermarks, embossing marks, passport photos produced by laser engraving, holograms, tilting, fluorescent, optically variable colors and various other features. Important security features in the security or value documents are individualizing, in particular personalizing, features. Personalizing features are, for example, passport photos and data of the person to whom the card is associated, for example the date of birth, the address or identification number in a company, as well as biometric data, such as a passport photograph, a digitized record of fingerprints, or the size, eye color of the person or their affiliation to a health insurance company. Other individualizing features are data associated with a particular device such as a motor vehicle, bank account or security. Such individualizing features are individually incorporated or incorporated on or into the security or value document for the person or object using them. Therefore, the process for their generation must be flexible. For example, methods and apparatus for applying such data to documents are described in US 6,022,429 A, US 6,264,296 B1, US 6,685,312 B2, US 6,932,527 B2, US 6,979,141 B1 and US 7,037,013 B2, the disclosure of which is hereby fully incorporated into the present description the individualizing features can be applied to the documents using, among other things, inkjet printing technology. In addition, some of the aforementioned documents state that these data are coated after application with a protective film (overlay film).

Therefore, there has been no lack of attempts to always develop new security features, not least to make counterfeiters with previously unused security features the possibility of forgery and / or falsification and / or copy at least considerably difficult. From EP 1 719 637 A2, for example, a security document is known which has a security feature which can be authenticated by means of UV radiation. For this purpose, the document is equipped with a transparent window area containing a UV radiation blocking agent. Invisible patterns coated with a UV-excitable fluorescent ink are printed within the window area on both sides of the UV-blocking agent. If either only the front or the back of the security document is exposed to UV radiation, only the pattern that is on the exposed side is visible. In contrast, if both sides are irradiated, both patterns are recognizable. The UV-blocking agent may, for example, be characterized by a visible in the visible transparent, UV radiation, however opaque to be formed. The window in the document is formed in one embodiment by external transparent layers and a central opaque layer, which has a recess formed in the region of the window, for example by punching.

WO 2008/075164 A2 also describes a data carrier with a see-through window, which makes it possible to show security features under special lighting conditions with different appearances on both sides. For this purpose, on both sides of an opaque polymer layer, for example of PC, PET or PVC, which is provided with a provided for forming the Durchsichtfens- ester punched, transparent polymer layers, also made of PC, PET or PVC, to. These polymer layers can also be marked by means of a laser. The cutout in the opaque polymer layer is filled with a transparent window part formed of the same materials as the polymer layers. The two transparent polymer layers can be described with personalized information. The window portion may further include a security feature such as a fingerprint, an iris scan, a hologram, or the like. In the region of the see-through window, a developer material, for example a printed luminescent ink, which is invisible under visible illumination, but which luminesces visibly by illumination, for example, with UV radiation, is located on both sides of the transparent polymer layers.

DE 10 2008 012 419 A1 discloses a polymer layer composite for a security and / or value document which has at least one printed surface printed thereon and which is printed with a print layer absorbing in the visible region, free surface areas on the printed surface Form of windows are in which the surface is not printed. In one embodiment, the free surface areas of the printed surface may be blank, with the exception of information, such as a passport photograph of the document holder. The printing ink used for the production of the printing layer contains a binder, which is preferably formed by a polycarbonate derivative based on a geminally disubstituted Dihydroxydiphenylcycloalkans.

Printing inks which are cured (dried, crosslinked) by means of UV radiation are known from the prior art: For this purpose, reference is made, for example, to DE 60 2004 013 360 T2. This document indicates in an example a banknote, for their production, a 10 μηι thick polyester film is printed with a layer of a UV-curable rotogravure ink with a motif. DE 600 21 710 T2 discloses a UV-curable composition which is provided to form layers on substrates and can be rubbed off again after UV curing. This composition contains a first organic molecule having at least one epoxide group, for example from the group of aliphatic epoxide monomers, cycloaliphatic epoxide monomers and / or oligomers, such as glycidyl ethers, and a second organic molecule having at least one nucleophilic group, for example from the group of aliphatic polyester polyols.

DE 1 1 201 1 102 365 T5 also describes an optically variable device having a plurality of zero-order diffraction grating elements arranged in one plane. For their production, a dielectric material is formed which may be an embossable radiation-curing printing ink. For example, this ink can be cured with UV radiation. As preferred, it is stated that the printing ink is formed by an acrylic-containing UV-curable transparent embossable lacquer or paint. DE 103 49 000 A1 discloses a security element with a color-shift effect, wherein the security element is formed by a reflection layer, an absorber layer and an intermediate layer arranged therebetween. The intermediate layer is formed by a printing layer. This is produced with a reactive UV-curing lacquer system based on acrylate monomers or oligomers.

DE 10 2010 015 778 A1 discloses a security element with a transparent image area with a multitonal motif. To generate the motif, a multistage relief with recesses in the form of the predetermined multitone motif, which is filled with a filling material, is produced in a thin polymer substrate. In particular, solvent-based or UV-crosslinking inks are specified for the filling material. The objects underlying the invention:

In the production of security and value documents, it should be noted that the security features of the documents may not be easily forged or falsified, so that it is necessary to arrange the security features inside the document bodies forming the documents. In addition, in the case of the production of a window area, it must be taken into account that, as in EP 1 719 637 A2 and WO 2008/075164 A2, punching in an opaque core layer and insertion of transparent window material leads to unevennesses on the surface of the document. This is unacceptable for aesthetic reasons. Therefore, a solution as in the case of DE 10 2008 012 419 A1 is preferable, in which the opaque region forming the windows is produced by an adhesion promoting pressure layer and not by an opaque core layer. However, in this case, the problem arises that the production of printing features in the region of a see-through window with the ink described in this document is not sufficiently opaque.

It is therefore an object of the present invention to provide a security feature disposed in at least one window area of an otherwise opaque document body, wherein aesthetic requirements for the appearance of the document must be met. An essential object of the present invention is to ensure that the adhesive strength of the polymer layers to each other, of which the document body is constructed, is not impaired by the security feature, even if this is arranged in the interior of the document body. The adhesive strength, measured by a peel test, should be at least 7 N / cm. Furthermore, it must also be ensured that the structure is also suitable for sensitive substrates, that with the security feature a homogeneous area coverage is achieved even with high area coverage (preferably of 100%) and that an adjustment of the viscosity of the colorant for use in a printing press is adequately possible.

definitions:

Insofar as the term "security or value document" is used in the description and in the claims of the present application, this includes, for example, a passport, identity card, driver's license or another ID card or an access control card, a vehicle registration document, vehicle registration document, visa, check, means of payment, in particular a banknote, a check, bank, credit or cash card, customer card, health card, chip card, a company card, proof of entitlement, membership card, gift or purchase voucher, bill of lading or other proof of entitlement To understand tax stamps, postal stamps, tickets, tokens, sticky labels (for example, for product securing) or any other ID document. Most preferably, the security or value document is an identification card or a banknote. The document may be, for example, a smart card. The security or value document may be in ID 1, ID 2, ID 3, or any other format, such as a booklet form, such as a passport-like item. The security or value document is, for example, a laminate of a plurality of document layers, which are connected in registration with one another under the action of heat and under increased pressure. Alternatively, it can also be a single-layer product. These documents should comply with the standardized requirements, for example in accordance with ISO 10373, ISO / IEC 7810, ISO 14443, each in the version valid on the priority date of the present application. The document layers consist for example of a carrier material which is suitable for lamination. The articles produced by the joining process form a document body which, for example, already has a part of the security features contained in the (finished) security or value document, but optionally, for example, still no protective lacquer layers or foils which protect the document body against manipulation or mechanical damage.

The security or value document can be formed from a polymer which is selected from a group comprising polycarbonate (PC), in particular bisphenol A polycarbonate, polyethylene terephthalate (PET), whose derivatives, such as glycol modified PET (PETG), Polyethylene naphthalate (PEN), polyvinyl chloride (PVC), polyvinyl butyral (PVB), polymethyl methacrylate

(PMMA), polyimide (PI), polyvinyl alcohol (PVA), polystyrene (PS), polyvinylphenol (PVP), polypropylene (PP), polyethylene (PE), thermoplastic elastomers (TPE), especially thermoplastic polyurethane (TPU), acrylonitrile-butadiene Styrene copolymer (ABS) and its derivatives, and / or paper and / or cardboard and / or glass and / or metal and / or ceramic. In addition, the product may also be made of several of these materials. It preferably consists of PC, PET and / or PVC. The polymers may be either filled or unfilled. In the latter case they are preferably transparent or translucent. If the polymers are filled, they are opaque. The above information relates to both the films to be joined as well as liquid formulations applied to a precursor, such as a protective or topcoat. The document is preferably produced from 3 to 12, preferably 4 to 10, films, it being possible for the individual films to consist of the same material or of different materials. Overlay layers formed in this way protect a security feature arranged underneath and / or give the document the required abrasion resistance.

Insofar as the term "security feature" is mentioned in the description and in the claims of the present application, the term according to the present invention means the visual impression on a human observer which is produced by a pattern or the image which can be picked up by a machine reading device. The security feature (absorption element and luminescent element in the window area) occupies only part of the surface of the document. As used in the specification and claims of the present application, the term "pattern" includes below a somewhat shaped distribution of optical impression imparting elements to the human eye or an intensity distribution picked up by a machine reading device, preferably in two-dimensional Arrangement on one or more (outer or inner) levels on and / or in the document, to be understood, which result in a self-contained representation, for example an image, picture element, character, in particular an alphanumeric character, a symbol, coat of arms, decor, Logo, ornament, motif, a line, formula, drawing, simple geometric shape or the like. For the purposes of the present invention, a visible pattern may be formed in only one color, including black, white and / or gray, or in multiple colors. The pattern can form an individualizing or non-individualizing label. The elements which impart an optical impression can be perceived by contrasting surface regions, the contrast being produced by different hues and / or brightnesses. As far as in the description and in the claims of the present application, the term, window area 'is called, it is to be understood as a two-dimensional area of the security or value document, in which the document is at least partially transparent or translucent, so that light can pass through this area while the window area surrounding the document area is opaque. Since the window area permits a view with sufficient transparency or translucency, the window area can also be referred to as a see-through area. The window area comprises a delimitable area within which at least transparent / translucent areas are located. Apart from these areas, there may also be opaque areas within the window area, which are caused by a security feature. For example, within an otherwise transparent / translucent area there may be a print object that absorbs in the visible spectral range. The window area is defined by the space area resulting from the projection of a transparent area defined by the opaque areas parallel to the normal to the outside of the security or value document in this document.

Insofar as the term "luminescence" is mentioned in the description and in the claims of the present application, this includes both fluorescence and phosphorescence. The term refers to any type of luminescence, including photoluminescence and electroluminescence.

Insofar as the terms 'absorption element' and 'luminescence element' are used singular in the description and in the claims of the present application, these terms in the corresponding context are also to be understood as being used in the plural, unless expressly stated otherwise. The same applies in the opposite case.

Insofar as the term "(meth) acrylate" is used below in the description and in the claims, this is to be understood as meaning both an acrylate group and, alternatively, a methacrylate group, this understanding in each case also referring to (meth) acrylic acid, (Meth) acrylamide and (meth) acrylonitrile groups should extend.

Background of the Invention and Preferred Embodiments: According to a first aspect, the present invention relates to a security or value document formed from a document body made by laminating at least two interconnected polymer layers. The document body has at least one window area. There are at least one window area in each because at least one absorption element and in each case at least one luminescence element which overlaps the at least one absorption element. The at least one absorption element and / or the at least one luminescent element are arranged in the document body on the inside or on its outer side. If these two feature elements are arranged on the outside of the document body, it is typically coated with at least one protective lacquer layer so that the feature entities are protected under this lacquer layer. At least the at least one absorption element is formed by a thermoplastic material. Thus, the at least one absorption element is a thermally activatable element. The absorbent, in particular the ink / ink, for producing the absorbent element may preferably be radiation-curing, preferably UV-curing. In this case, it should be provided that the colorant has good UV drying properties.

The absorption element is formed with an absorbent and extends in at least one plane in the document body over an absorbent element application region which at least overlaps the window region. In a preferred embodiment of the present invention, the at least one absorbent element is configured and arranged to be completely within the window, i. the opaque area defining the window is not touched but spaced (framed) therewith, so that the absorption element is completely visible in the window.

The absorption element forms a pattern and can therefore be individualizing, in particular personalizing, or non-individualizing. The absorption element preferably has substantially no luminescence properties and therefore absorbs only electromagnetic radiation, preferably in the UV spectral range. For this purpose, the absorption element contains one or more radiation-absorbing agents. Several absorption elements can be arranged in different window areas of the document body. Preferably, these absorption elements are located inside the document body. In a specific embodiment, the absorption element can also be distributed in several planes, for example in the form of a plurality of partial images of, for example, monochrome color separations of a multicolored image, which are arranged in different planes of the document body. The absorbent is thermoplastic, ie softens when heated above a certain temperature. The luminescent element is produced with a luminescent agent, in particular a luminescent ink / ink, and extends in at least one plane in the document body via a luminescent element application region which at least overlaps with the window region. Again, in a preferred embodiment of the present invention, the luminescent element can also be arranged completely within the window, ie not touching the opaque area defining the window, but being arranged (framed) at this distance. The luminescent element can be a pattern and accordingly form a non-individualizing pattern or even an individualizing, in particular personalizing, pattern. Alternatively, the luminescent element may also be formed by a luminescent layer applied uniformly (without intensity or wavelength variation) with the luminescence agent, ie in the form of an uninterrupted layer. The luminescent element exhibits luminescence properties. Several luminescent elements can be arranged in different window areas of the document body. Preferably, these elements are located inside the document body. In a specific embodiment, the luminescence elements can also be distributed in several planes, for example in the form of a plurality of partial images of, for example, monochrome color separations of a multicolor image formed by luminescence, which are arranged in different planes of the document body.

The security or value document according to the invention has a number of advantages over conventional documents:

Firstly, the use of an absorbent for the absorbent element which results in a thermoplastic material after curing ensures that the polymer layers between which the absorbent element is disposed firmly adhere to each other, even if the coverage of the polymeric layer surfaces with the absorbent over a large area Area is even. This ensures that a delamination despite the large area coverage at this point is not readily possible. Furthermore, the use of a UV-curing absorbent achieves that it can also be dried on sensitive carrier materials, so that, for example, very thin carrier films or thermally sensitive substrates, such as paper, can be used for the application of the absorbent. With the used Absorbents are provided with good homogeneity with homogeneous coverage and the ability to tailor the viscosity of the absorbent to the requirements of the printing press and the like, as well as high area coverage, preferably 100%, and excellent UV drying properties.

With the superimposition / overlap of the absorption element with the luminescent element, a security feature that is difficult to adjust can be created. In particular, it is possible to verify the authenticity of the document with a little expensive, but very effective verification method: By arranging the absorption element and the luminescent element within the window area, this ensemble can be viewed from the two feature entities from both sides of the security or value document be evaluated. Characterized in that the absorption element and the luminescent element are arranged in a sandwich configuration to each other - either directly adjacent to each other or spaced apart - arise when observing the two sides of the document different observable or readable pattern under suitable lighting conditions. For example, the pattern generated by the absorption element is perceptible only when viewing the document side to which the absorption element faces the illumination. By contrast, the pattern generated by the absorption element is not equally visible or not at all visible when viewed from the other side of the document. In particular, it is possible in this case suitable design of the absorption element and the luminescent element to provide a complex UV luminescence feature that shows a graphical intensity modulation and / or hidden or visible at different viewing angles. When an absorbent is used to produce the absorbent member that absorbs the electromagnetic radiation irradiated to excite the luminescent element for luminescence and / or emitted from the luminescent element, the shape of the absorbent element becomes noticeable against the background of the luminescent element when the security or value document is from the side from which the absorption element is arranged in front of the luminescent element. If the security or value document is viewed from the side of the document from which the absorption element is arranged behind the luminescent element, the shape of the absorption element can indeed be seen even if the absorption element that is used to excite the luminescent element. Zenzelements absorbed for luminescence irradiated radiation, but not when the absorption element absorbs the luminescence emitted by the luminescence element luminescence. There are therefore several possibilities in which spectral regions the absorption element and the luminescence element can absorb electromagnetic radiation:

It is possible that the absorption element is such that it has electromagnetic radiation in the UV (ultraviolet) spectral range (UVA spectral range: 380-315 nm, UVB spectral range: 315-280 nm, UVC spectral range: 280-200 nm). , VIS (visible) spectral range and / or IR (infrared) spectral range absorbed. For this purpose, the absorption element contains at least one appropriately designed radiation-absorbing agent. In principle, it is of course also possible for the absorption element to absorb electromagnetic radiation only in a partial region of these spectral regions and / or for the absorption element to absorb electromagnetic radiation in two or all three spectral regions. For example, the absorption element can absorb electromagnetic radiation in the near IR range, in the red visible range and in the UVA range.

In a particularly preferred embodiment of the present invention, the absorption element in the UV spectral region is absorbent and contains for this purpose at least one UV-absorbing agent. It is very particularly preferred if the absorption element in the VIS spectral range is non-absorbent. In this case, the absorption element when viewed with the naked eye is not readily apparent.

In the latter case, it is particularly preferred if the absorption element absorbs electromagnetic radiation in the UVA spectral range. Preferably, the absorption of the Ab sorptionselements is at a thickness of the layer of 5 μηι to 10 μηι in a range of at least 50%, more preferably of at least 80%, wherein the upper limit of the absorption is nearly 100%, i. preferably at 95%, more preferably at 97% and most preferably at 99%. More preferably, the above absorbance values refer to a wavelength range of 380 nm to 340 nm.

Furthermore, it is possible for the luminescence element to be such that it emits electromagnetic radiation in the UV (UVA, UVB, UVC) spectral range, VIS spectral range and / or IR spectral range as luminescence radiation. Basically it is natural It is also possible for the luminescence element to emit electromagnetic radiation only in a partial region of these spectral regions and / or for the luminescence element to emit electromagnetic radiation in two or in all three spectral regions as luminescence. For example, the luminescence element can emit electromagnetic radiation in the near IR region and red region of the VIS spectral region.

In a particularly preferred embodiment of the present invention, the luminescence element is designed to emit electromagnetic radiation as luminescence, at least in the VSI spectral range.

Furthermore, it is possible for the luminescence element to be such that it is excited to luminescence by electromagnetic radiation in the UV spectral range, VIS spectral range and / or IR spectral range. In principle, it is of course also possible that the luminescence element is excited by electromagnetic radiation only in a partial region of these spectral regions for luminescence and / or that the luminescence element is excited with electromagnetic radiation in two or all three spectral regions for luminescence. For example, the luminescence element can be excited to luminescence with electromagnetic radiation in the UV spectral range, in particular in the U VA spectral range, and blue range of the VIS spectral range.

In a particularly preferred embodiment of the present invention, the luminescence element with electromagnetic radiation in the UV spectral range, in particular UVA spectral range, can be excited to luminescence. It is very particularly preferred if the luminescent element can be excited by luminescence with electromagnetic radiation in the UV spectral range and emits electromagnetic radiation in the VIS range as luminescence and if the absorption element absorbs electromagnetic radiation in the UV spectral range, in particular U VA spectral range, namely at least parts of the radiation irradiated to excite the luminescent element for luminescence. The luminescent element may contain luminescent colorants which are Stokes or anti-Stokes colorants. In a preferred embodiment of the present invention, the absorption element in a first pattern plane and the luminescent element in a second pattern plane spaced from the first pattern plane are arranged in the document body. When viewing the security or value document, this results in a parallax effect, which is that the absorption element and the luminescence element shift relative to each other when the viewing angle is changed. This results in a viewing direction-dependent UV effect, in particular when using a stimulable in the UV spectral luminescent. In this case, it may be advantageous to arrange the absorption element and the luminescent element in the form of the same pattern with the same size and the same orientation in the document body. It is very particularly preferred if these two patterns are arranged precisely one above the other (ie perpendicular to the outer sides of the security or value document).

It is particularly preferred if the absorption element and the luminescent element are applied directly to one another. In this case, however, there is no parallax effect.

In order for the absorption element and the luminescent element to be arranged at different levels in the document body, these two feature entities can be applied to different surfaces of a single polymer film or to a plurality of polymer films from which the document body is formed, for example to the two surfaces of a polymer film. namely the absorption element on the one surface and the luminescent element on the other surface of this film.

In yet another embodiment of the present invention, the absorbent member can be dissected into various complementary and overlapping sub-patterns and these sub-patterns then applied to different surfaces on the polymer sheets. As a result, a parallax effect is also generated, because the partial patterns together, depending on the viewing angle, form different overall patterns. For example, a multicolored pattern can be broken down into a plurality of partial patterns, each of which is formed by a basic color separation of the multicolored pattern.

The absorption element and / or the luminescence element are preferably applied to the polymer layers of the document body by means of a (or different) printing process. forms. For example, for this purpose, a screen printing or flexographic printing process can be used, and fundamentally completely different printing processes are also conceivable if the corresponding requirements of these printing processes are met by the application means (absorbent, luminescent agent) with which these security entities are produced. In principle, other methods are also conceivable, for example a coating method, doctor blade method, (curtain) casting method, spin coating method and the like, these latter methods being only suitable for forming pattern-forming layers. Such an alternative is conceivable in particular for the luminescence element, so that it can form a background for the absorption element in this case.

The absorption element and the luminescent element are preferably formed so large on the corresponding surfaces of the polymer layers that they are at most as large as the window area. Or they are larger than the window area. In an alternative embodiment, the absorption element may be at most as large as the window area and the luminescent element may be larger than the window area. In principle, it is conceivable that one of these two security entities or both are the same size as the surfaces of the polymer layers to which they are applied, at least the size that the polymer layers have in the finished security or value document. The thickness of the absorption element is preferably at least 1 μηι, more preferably at least 3 μηι, even more preferably at least 5 μηι and most preferably at least 7.5 μηι. The thickness of the absorption element is preferably at most 50 μηι, more preferably at most 30 μηι, even more preferably at most 20 μηι and most preferably at most 15 μηι. The thickness of the absorption element may be, for example, about (± 2 μηι) 10 μηι.

At least the absorbent element is produced with a film-forming agent based on a thermoplastic lacquer, which is preferably UV-curing. The thermoplastic properties manifest themselves upon curing of the absorbent, such that in a lamination process in which the polymer sheets are welded together, the absorbent element softens, ie melts, and forms penetration networks (entangling and hooking networks) to form an intimate bond of the material of the absorbent element with the polymer materials of the polymer layers in contact therewith; that the lamination composite can not subsequently be delaminated nondestructively. For this purpose, the material of the absorption element after curing to a softening temperature, which is preferably in the vicinity (± 20 ° C) of the laminating temperature. In the case of a laminate formed from PC films, the lamination temperature is preferably 170 ° C. to 200 ° C., so that the softening temperature of the material of the cured absorption element is preferably in a range of 150 ° C. to 220 ° C. In the case of a laminate formed of PET films, the lamination temperature is preferably 200 ° C to 240 ° C, so that the softening temperature of the material of the cured absorbent member is preferably in a range of 180 ° C to 260 ° C.

In a preferred embodiment of the present invention, the at least one absorbent member is fabricated with an absorbent comprising: at least one film-forming agent based on a UV-curable varnish which gives a thermoplastic by UV-curing and at least one radiant-absorbent Agent, for example, dye and / or pigment.

The at least one film-forming agent based on a UV-curing thermoplastic lacquer is characterized by a free-radically curing system. For this purpose, this system contains compounds that polymerize by radical reaction. These are preferably unsaturated compounds, in particular (meth) acrylic acid compounds and derivatives thereof, and vinyl compounds, such as vinyl ether, maleimide and bismaleimide compounds.

The at least one film-forming agent in a particularly preferred embodiment of the present invention contains the following components:

(i) at least one passive resin;

(ii) at least one pre-oligomer;

(iii) at least one polymerizable monomeric compound; and

(iv) at least one photoinitiator. The use of passive (free-radically non-polymerizable or only slightly reactive) coating resins with monofunctional monomers and a very broadband formulated photoinitiator mixture a low network density of the polymer is achieved, so that this is thermoplastic after UV curing. Since these film-forming raw materials used have a low reactivity and an additionally containing UV absorber further reduces the reactivity in the case of UV curing, the spectrally broad sensitivity of the photoinitiator mixture is of essential importance. Especially the long-wave photoinitiator shares are of crucial importance for the curing of the absorbent. The at least one passive resin (component (i)) together with the other constituents serves to form a thermoplastic material during curing. The passive resin is generally passive under UV irradiation to the other components of the film-forming agent because it either does not have any groups polymerizable under the reaction conditions or only groups that are (substantially) less reactive than the reactive groups of the other ingredients. If it contains polymerizable groups, for example ethylenically unsaturated groups, these are, for example, sterically hindered, since they are not at the end of the molecule, but inside the molecule. For example, a passive resin based on abietic acid can be used. The passive resin is formed by an oligomer (degree of oligomerization <20, preferably <10, most preferably <7). It acts as a non-reactive or poorly reactive film-forming component. In the absorbent, the passive resin is dissolved in the other constituents, but forms gelatinizing during the polymerization. For the formulation of the absorbent, the passive resin can be used, for example, dissolved, for example in a polymerizable monomeric compound according to the list above, preferably in a (meth) acrylate compound. The passive resin can be any suitable non-reactive coating resin or a mixture of non-reactive coating resins, for example a polyester coating resin or a mixture of polyester coating resins, in particular polyethylene terephthalate coating resins, or a (meth) acrylate coating resin or a mixture of (meth) acrylate lacquer resins or a mixture of polyester and (meth) acrylate lacquer resins. In a particularly preferred embodiment of the present invention, it is a (meth) acrylate lacquer resin or a mixture of

(Meth) acrylate coating resins. The pre-oligomer (component (ii)) is a curable resin having reactive groups for polymerization, where the pre-oligomer is either mono- or at most difunctional. A further preferred embodiment of the present invention is a mono- or bifunctional urethane acrylate (urethane monoacrylate or urethane diacrylate), epoxy acrylate (epoxy monoacrylate or epoxy diacrylate), polyester acrylate (polyester monoacrylate or polyester diacrylate ) or the like, whereby mixed forms (cooligomers) of these compounds can be used. In a particularly preferred embodiment of the present invention is a urethane acrylate. Very particular preference is given to hydroxyfunctional monourethane (meth) acrylate oligomers (oligomers having an acrylate and a terminal hydroxyl group end) and bifunctional urethane (meth) acrylate oligomers (oligomers having terminal acrylate groups). Very particularly preferred is a mixture of these two types of compounds.

Urethane acrylates are commercially available, for example from Polygon Chemie, DE. These compounds have a base body, for example based on a polyether, polyester (polyethylene terephthalate) or polycarbonate, which base body is initially present in the form of a diol. The main body is reacted in a known manner with a difunctional isocyanate, so that only one of the hydroxyl groups of the main body or both hydroxy groups react to form the corresponding isocyanate-functionalized main body, and this compound is then subsequently reacted with at least one compound on all NCO groups present reacted, which carries a functional group which can react with isocyanates, and which has as a further functional group a crosslinkable by free-radical polymerization double bond. In this second reaction step, an oligomeric urethane acrylate is formed, which has on one or both sides terminal radically polymerizable groups.

Alternatively, epoxy acrylates, in particular aliphatic and aromatic epoxy acrylates, and polyester acrylates, in particular aliphatic and aromatic polyester acrylates, into consideration, again preferably mixtures of compounds are used which have one or two acrylate groups. Here, mixed forms of aliphatic and aromatic compounds are conceivable. Such compounds are commercially available. For example, an aliphatic polyester diacrylate is available under the trade designation UVP6000 from Kromachem, DE. Also suitable are mixed forms (cooligomers) of urethane acrylates, epoxy acrylates and / or polyester acrylates, for example a polyester-modified epoxy acrylate, namely a polyester-modified epoxy monoacrylate or a polyester-modified epoxy diacrylate.

Urethane acrylates are preferably prepared from the diol of an oligomeric polyether, polyester (polyethylene terephthalate) or polycarbonate (commercially available, for example a polycarbonate diol under the trade name Desmophen® from Bayer MaterialScience / Covestro), for example with a molar mass of 500 to 10,000 g / mol of from 1,000 to 5,000 g / mol, and most preferably from 1,500 to 2,500 g / mol, this oligomer being reacted in a known manner with, for example, an aprotic solvent in the presence of conventional catalysts with a diisocyanate. The diisocyanate can be selected, for example, from a group comprising isophorone diisocyanate (IPDI: 1-isocyanatomethyl-3-isocyanato-1,5,5-trimethylcyclohexane), 1,5-naphthylene diisocyanate, diphenylmethane diisocyanate (MDI), namely 2,2 '. Diphenylmethane diisocyanate, 2,4'-diphenylmethane diisocyanate and 4,4'-diphenylmethane diisocyanate, and other common diisocyanate compounds. This reaction may preferably be carried out in the presence of a reactive diluent, for example a (meth) acrylate, such as 3,3,5-trimethylcyclohexyl (meth) acrylate, tert-butylcyclohexyl (meth) acrylate, 2 (2-ethoxyethoxy) ethyl (meth) acrylate, tetrahydrofurfuryl (meth) acrylate, 2-phenoxyethyl (meth) acrylate and other known acrylate compounds. The oligomeric diol is preferably reacted with the diisocyanate in a molar ratio in a range of 1: 1, 8 to 1: 2.2, most preferably in a ratio of 1: 2, when a difunctional reaction product is to be prepared. In the case of the preparation of a monofunctional reaction product, this ratio is in a range from 1: 0.8 to 1: 1, 2.

The isocyanate-functionalized monohydroxy compounds or diols thus obtained are then reacted in a known manner with a (meth) acrylate compound which has a group reactive for reaction with a free isocyanate group. For this purpose, it is typically possible to select compounds from a group which comprise esters and amides of α, β-unsaturated carboxylic acids with one or more low molecular weight, aliphatic alcohols which additionally have a further OH or SH group, for example se 4-hydroxybutyl (meth) acrylate, 2-hydroxyethyl (meth) acrylamide, 2-hydroxyethyl (meth) acrylate, 3-hydroxypropyl (meth) acrylate, 3-hydroxypropyl (meth) acrylamide, N-hydroxymethyl (meth) acrylamide and also SH-bearing esters and amides. The isocyanate-functionalized oligomeric diol obtained by reacting the oligomeric diol with the at least one diisocyanate and the (meth) acrylate compound are preferably in a molar ratio in a range of 1: 0.8 to 1: 1, 2, all particularly preferably used in a molar ratio of 1: 1.

Furthermore, the film-forming agent contains at least one polymerizable monomeric compound (component (iii)). In a particularly preferred embodiment of the present invention, these are unsaturated compounds, in particular olefinically unsaturated compounds, more preferably aliphatic, alicyclic and aromatic compounds. Particularly preferred are linear aliphatic compounds. Particularly preferred are (meth) acrylic acid, (meth) acrylic ester, (meth) acrylamide, (meth) acrylonitrile, vinyl ether, maleimide and bismaleimide compounds. These compounds according to a particularly preferred embodiment of the present invention contain only a single radically polymerizable group, i. only a single unsaturated group, so that there is no crosslinking. Therefore, only chain-shaped polymers with a relatively short chain length are formed. Multiple functional compounds (with two, three or even more radically polymerizable groups) are preferably not used. Furthermore, these compounds can either be largely non-polar or rather polar.

Particularly suitable as components (iii) are acid amides with radiation-reactive groups, for example (meth) acrylamide, N-methyl (meth) acrylamide, N, N-dimethyl (meth) acrylamide, N-ethyl (meth) acrylamide, N , N, -diethyl- (meth) acrylamide, N-isopropyl- (meth) acrylamide, N-butyl (meth) acrylamide, N-tert-butyl-(meth) acrylamide, N, N-dibutyl- (meth ) acrylamide, N-phenyl- (meth) acrylamide, N - ((meth) acryloyl) -morpholine, N - ((meth) acryloyl) -piperidine, N- (1, 1-dimethyl-3-oxobutyl) - (meth) acrylamide, N-1, 1, 3,3-tetramethylbutyl (meth) acrylamide, dimethylene bis (meth) acrylamide, tetramethylene-bis (meth) acrylamide, tri (meth) acryloyl-diethylenetriamine and similar compounds.

Furthermore, acids with radiation-reactive groups are suitable, from which, for example, the abovementioned (meth) acrylamides are derived, namely, for example (Meth) acrylic acid, N-methyl (meth) acrylic acid, N, N-dimethyl (meth) acrylic acid and the like (in this regard, reference is made to the above list of acrylamides).

Also suitable are vinyl ethers, maleimides and bismaleimides. Typical examples of vinyl ether monomers are methyl vinyl ether, ethyl vinyl ether, hydroxybutyl vinyl ether, tert.

Butyl vinyl ether, isobutyl vinyl ether, triethylene glycol divinyl ether (available under the tradename RAPI-CURE® DVE-3 from International Specialty Products, US) as well as similar materials and mixtures thereof. Finally, at least one free-radical polymerization photoinitiator is included in the film-forming agent-forming formulation (component (iv)). The choice of photoinitiators depends on their solubility in the film-forming agent and on their wavelength dependence. It is particularly advantageous to use a mixture of a plurality of photoinitiators whose light absorption complements a wide wavelength range. It is thereby achieved that the light emission spectrum of an illumination lamp, for example an Hg emitter, is largely utilized in order to compensate for the absorption of electromagnetic radiation by the radiation-absorbing means in the absorption element. For example, if the radiation absorbing agent of the absorbing element absorbs in the UVA spectral region, the photoinitiators should absorb in both the VIS, UVB and UVC spectral regions to exploit the radiation provided by an illumination source in these other spectral regions. In the UVC-absorbing photoinitiators (especially 1-phenyl-2-hydroxy-2-methyl-propane-1-one) are used in particular to cause a surface hardening, so that the absorption element is not tacky after curing (Abliegefrei, ie the polymer films provided with the absorbent element are stackable without sticking).

Photoinitiators which can be used for the purpose according to the invention are known. All conventional compounds can be used, provided that they are soluble in the composition of the film-forming agent, for example α-hydroxy ketones, benzophenone, benzophenone derivatives, such as 2,4,6-trimethylbenzophenone, 4-methylbenzophenone and 2-hydroxy-2-methyl propiophenone, furthermore benzyl dimethyl ketals, acylphosphine oxides, for example diphenyl (2,4,6-trimethylbenzoyl) phosphine oxide, phenylbis (2,4,6-trimethylbenzoyl) phosphine oxide (available as Lucirin® TPO-L), 2,4, 6-trimethylbenzoylethoxyphenylphosphine oxide, 2,2-dimethoxy-1, 2 diphenylethane-1-one, 2-methyl-1- (4-methylthiophenyl) -2-morpholinopropan-1-one and 2-benzyl-2-dimethylamino-1- (4-morpholinophenyl) butanone. Particularly advantageous phosphine oxides and 1-phenyl-2-hydroxy-2-methyl-propane-1 -one have proven. These two latter compounds / classes of compounds can be used together in a particularly suitable embodiment together.

The individual components of the film-forming agent are coordinated so that the printed and cured absorption element is evenly through hardened and no longer sticky.

The at least one radiation-absorbing agent contained in the absorption element, for example at least one dye and / or at least one pigment, is tuned to the requirements that are set with respect to the absorption of electromagnetic radiation in order to achieve the effect of the security feature according to the invention. In principle, these can be conventional dyes and pigments which are typically present in colorants (printing inks / inks), for example compounds such as those described in Ullmann's Encyclopedia of Industrial Chemistry, Electronic Release 2007, Wiley-Verlag, in the various chapters, Colorants Used in Ink Jet Inks, Dyes, General Survey, Pigments, Organic, Pigments, Inorganic. Therefore, the disclosure in this specification is incorporated by reference into the present application. Examples of such materials are colorants which are soluble in the absorbent used to form the absorbent element, such as anthraquinone, azo, quinophthalone, coumarin, methine, perinone and pyrazole dyes, for example marketed under the trade name Makrolex® (Lanxess). are available, provided that they have the desired absorption properties. Preference is given to substances which absorb in the UV spectral range, in particular in the UVA spectral range. Such substances are, for example, triazole compounds, in particular benzotriazole compounds. In a particularly preferred embodiment of the present invention, for example, α-3- (3- (2H-benzotriazol-2-yl) -5-tert-butyl-4-hydroxyphenyl) propionyl-ω-hydroxypoly (oxyethylene (EC Index 607) Such products are available, for example, under the trade designation MAPEFLOOR® FINISH58 W comp. A from Mapei SPA, IT.

In principle, the luminescent element can also be formed with a UV-curing thermoplastic application agent. In that case, the above explanations would then become According to the various embodiments for the composition of the absorbent for the absorption element also apply to the production of the luminescent element. Preferably, however, the luminescent agent is used on the basis of solvent-containing inks / inks containing film-forming components based on polycarbonate derivatives, in particular based on a geminally disubstituted dihydroxydiphenylcycloalkane, preferably of 4,4 '- (3, 3,5-trimethylcyclohexane-1,1-diyl) diphenol, 4,4 "- (3,3-dimethylcyclohexane-1,1-diyl) diphenol, or 4,4" - (2,4,4-trimethylcyclopentane-1 , 1-diyl) diphenol. Such compounds and compound mixtures are in

DE 10 2008 012 419 A1. Therefore, the relevant disclosure of this document is incorporated by reference into the present application. Even with such materials, a firm connection between adjacent polymer layers of the security or value document is achieved, even if there is a large-area luminescent element between them. This applies in particular if such luminescent agents are applied to polymer layers consisting of PC or PET. Because these luminescent agents enter into a very intimate connection with the polymer layer material.

The luminescent element or the luminescent agent contains at least one luminescent colorant, preferably at least one luminescent substance and / or at least one luminescent pigment. It is possible to use organic or inorganic luminescent colorants. Pure luminescent colorants or mixtures of luminescent colorants can be used. The mixtures may contain either at least two inorganic luminescent colorants or at least two organic luminescent colorants or at least one inorganic and at least one organic luminescent colorant. For the luminescent colorants, reference is made to the relevant literature, for example to 'Phophor Handbook', 2nd Edition, ISBN: 0-8493-3564-7. Its disclosure content with respect to these substances is hereby incorporated by reference into the present application. Furthermore, typical luminescent colorants are also disclosed, for example, in DE 10 2009 040 747 B3, US Pat. No. 3,474,027 A, DE 198 60 093 A, US Pat.

DE 199 94 436 A1, DE 10 2010 026 627 A1 and DE 10 2007 035 592 A1. Their disclosure content with respect to these substances is hereby incorporated by reference into the present application. These are, for example, organic luminescent colorants, such as rhodamine 6G, rhodamine B, methylene blue, anthrazine, quinazolone, benzozazine or fluorescein, and also what are known as quantum dots, ie semiconductor particles whose size In the nm range, for example based on CdS, which may be additionally sheathed. Alternatively, rare earth doped materials that form a rare earth host lattice may be used, such as oxysulfides, oxynitrides, phosphates, especially calcium or strontium phosphates, silicates, especially zinc or alkaline earth silicates, silicates, and rare earth aluminates , Tungstates of the alkaline earth metals, zinc oxides, zinc sulphides and rare-earth oxides which are complexed with Eu ²⁺ , Eu ³⁺ , Sb ³⁺ , Mn ²⁺ , Ag ⁺ , Cu ⁺ , Sn ²⁺ or Tb ³⁺ or other elements ( Heavy metal ions) are doped.

In a further preferred embodiment of the present invention, the at least one window region is formed by at least one opaque pressure layer which is effective for at least one window region and is formed on at least one surface of the at least two polymer layers. In contrast to the embodiments described in EP 1 719 637 A2 and WO 2008/075164 A2, in which a recess formed, for example, by punching in an opaque core layer forms a window area in the core layer, the window area according to the present invention is replaced by a window area Printing layer formed. This pressure layer defining the window can be formed on the same surface of a polymer layer as the luminescent element and / or the absorption element or on another polymer layer. The application means for forming the opaque layer, which leaves the window area free, can be formed by the PC printing ink described in DE 10 2008 012 419 A1. In particular, this coating agent may contain film-forming components based on PC derivatives, in particular based on a geminally disubstituted Dihydroxydiphenylcycloalkans, preferably of 4,4 '- (3,3,5-trimethylcyclohexane-1, 1 -diyl) diphenol, 4.4 "- (3,3-dimethylcyclohexane-1,1-diyl) diphenol, or 4,4" - (2,4,4-trimethylcyclopentane-1,1-diyl) diphenol. Therefore, the disclosure content of this document, in particular the composition of the application means, incorporated by reference in the present application. In particular, this coating material intimately bonds with polymer films produced from PC or PET, so that despite the large surface coverage of the polymer film surface with the application agent, excellent adhesion between adjacent polymer layers can be achieved. Accordingly, the opaque layer for forming the window region can also be produced with the thermoplastic absorbent, which is used to formulate the window area. tion of the absorption elements is provided. In this respect, reference is made to the above explanations of this resource.

In the document body is at least one window area, which is released from the opaque application means. This window region can be formed by two printing layers on different and spaced-apart surfaces of the polymer layers, so that there is a gap between the printed layers, in which, for example, an RFID circuit with antenna and RFID chip can be hidden from the pressure. The window areas of the two printing layers are arranged in register in the document body with one another. Alternatively, a plurality of window areas may be provided with one or more print layers as described above.

The window area may be in any shape, for example, in a simple geometric shape, such as a square, rectangle, circle, ellipse, or the like. The window area can be delimited by a sharp boundary at the transition from the print layer area to the window area in which no application means is located, or by a soft transition against the print area, wherein the opacity of the print layer area in the transition area gradually increases or decreases. The printing area can be arranged in one or more printing planes in the value or security document; in the case of several printing planes, the printing layers can be arranged on both sides of the same polymer film in the document body or on surfaces of different polymer films. The printed layers may not absorb 100% of electromagnetic radiation in the visible spectral range, depending on their optical density. Therefore, it may be necessary to provide multiple print layers to achieve full opacity in the non-window document regions. Further, with non-100% absorbing print layers, watermark-like structures can be formed in the document if multiple print layers are present. For this purpose, the printed layers on open areas that are not stacked or overlap only partially. As a result, the document is partially transparent in the electromagnetic radiation document regions corresponding to the free areas, while it is completely opaque in the regions in which none of the printed layers has a free area, ie in which the print areas of all the print layers are overprinted. to store. In document regions where one or several of the print layers have free areas, the document is more or less translucent, depending on the optical density of the particular print layer and the number of free areas in those regions. If the free areas of all print areas partially overlap, a window is formed in the overlap area. For the formation of a window area, the free areas of all printed layers must be arranged one above the other.

The at least one printing layer can be printed flat or screened, for example with a line or dot screen.

In a particularly preferred embodiment of the present invention, at least one of the polymer layers is designed so that it can be written on with a laser so that a pattern is generated therein. This pattern can be individualizing or non-individualizing. The advantage of this procedure is that a security feature can be formed with simple means in a plane lying in the document body, so that individualizing features can be attached there with little effort. To produce such security features, the polymer layer can be formed, for example, from PC with embedded carbon particles, which absorb the laser radiation. Such a procedure is known for example from DE 29 07 004 B1 and WO 2008/075164 A2.

The authenticity of the security or value document according to the invention can be checked according to a second aspect of the present invention with a method comprising the following method steps:

(a) providing the security or value document to be checked according to the invention;

(b) irradiating the security or value document on a first document page with electromagnetic radiation suitable to excite the luminescent element and spatially resolved registering the luminescence on the first document page to produce a first luminescent image modified by an absorption element; Irradiating the security or value document on a second document page with electromagnetic radiation adapted to excite the luminescent element and spatially resolved registering the luminescence on the second document side to produce a second luminescent image; Comparing the first luminescent image with the second luminescent image and registering a difference between the first luminescent image and the second luminescent image.

In order to carry out this method, the security or value document to be tested can be viewed with the naked eye or checked by means of devices with which the radiation emitted by the luminescence element can preferably be investigated in a spatially resolved manner.

The verification device preferably has a holder for the security or valuable document, at least one radiation source, for example a gas discharge lamp, for example a Hg emitter, an LED or the like, at least one imaging optics and at least one radiation receiver, for example a CCD sensor, wherein the imaging optics and the radiation receiver are arranged to each other such that emitted by the security feature electromagnetic radiation is imaged by the imaging optics on the radiation receiver. Furthermore, the device preferably has an electronic data processing device coupled to the radiation receiver, for example a personal computer, and a display, for example a personal computer screen. From the emitted electromagnetic radiation data streams are generated in the radiation receiver, which are read by the electronic data processing in a known manner. The data supplied to the electronic data processing device are processed and evaluated therein. The image of the security feature obtained from one side of the security or value document can then be displayed on a display, for example the screen of a personal computer, and / or stored in a data memory. To check the radiation emitted by the luminescent element on both sides of the security or value document, the emitted radiation from the two document pages can be registered successively or simultaneously. In the case of naked eye testing, this test is performed in successive steps. Alternatively, the security feature can of course also be checked exclusively from one side of the document.

With a verification device which allows a preferably spatially resolved registration of the emitted radiation, the test can also be carried out in successive steps by reversing the document after checking the first page of the document and registering the luminescence radiation from the other document side. Alternatively and preferably, the emitted radiation is recorded simultaneously from both sides of the document. In this case, the verification device is preferably designed to receive the document in the holder, wherein these in addition to the radiation sources, which are spatially associated with each side of the document, the imaging optics and radiation receivers, which also each one side of the document spatially assigned. The radiation receivers are preferably designed to record the emitted radiation spatially resolved, in particular two-dimensionally resolved. For this purpose, the device may preferably have two imaging optics and two radiation receivers, for example CCD sensors. The two images of the security feature recorded by the radiation receivers are supplied to the electronic data processing device and / or stored on the data carrier.

The images of the security feature originating from the two sides of the document can then be compared, for example, with reference data (data of reference images of the security feature that were created and / or calculated under simulated irradiation conditions). Or the two images are compared with each other, wherein these are in a logical relationship to each other: If the luminescent element is excited, for example, by UV radiation and VIS radiation emitted and the absorption element absorbs the UV excitation radiation, is in the examination of the security feature of a first document page, on which the absorption element is arranged in front of the luminescent element, the image of the absorption element as a shadow in front of the image of the luminescent element recognizable, and is in the examination of the security feature of a second document page, on which the absorption element is arranged behind the luminescent element, also recognizes the image of the absorption element as a shadow, in this case, however, reversed in relation to the luminescence image of the first document page. If the luminescent element is excitable by UV radiation as previously and emits VIS radiation, the absorption element, on the other hand, absorbs the VIS radiation emitted by the luminescent element when checking the security feature from the first document side on which the absorption element is arranged in front of the luminescence element , The image of the absorption element turn recognizable as a shadow in front of the image of the luminescent, while in the examination of the security feature of the second document page on which the absorption element is disposed behind the luminescent, the image of the absorption element in this case is not visible as a shadow but rather exclusively the luminescent element by its emitted UV radiation.

In a preferred development of the present invention, the luminescence on the first document page and / or the luminescence on the second document page of the security or value document are registered in an energy-dispersive manner and the registered energy distribution of the luminescence on the first document page and / or on the second document page a corresponding reference energy distribution compared. As a result of this further determination of properties of the luminescence of the security feature, an even more secure verification of the security or value document is made possible. This prevents, for example, that substitutes for the radiation-absorbing and / or luminescent colorants used in a real document are used to form the security feature. The replacement of the original ones with the substitutes would show up in a changed spectral characteristic of the evaluated spectra. For this purpose, it is possible to evaluate both a position in the image of the security feature which exclusively shows the luminescence of the luminescent element or a point at which the signal of the luminescent element is shadowed by the absorption element.

Instead of or in addition to the energy-dispersive registration of the luminescence, the luminescence can also be registered, and the excitation radiation can be tuned energy-dispersive, so that an excitation spectrum of the luminescent element is obtained. This procedure is particularly advantageous when the absorption element absorbs the excitation radiation, so that in this case also the spectral influence of the absorption tion element can be registered on the luminescence. In contrast, the energy-dissipative registration of the luminescence additionally contains the spectral information of the absorption element, in particular when it absorbs the luminescence radiation. For energy-dispersive registration of the luminescence or energy-dispersive tuning of the excitation radiation, a verification device additionally has at least one energy-dispersive component, for example a diffraction grating or a refraction element. In the case of energy-dispersive registration of the luminescence, the energy-dispersive component is connected in the beam path of the luminescence radiation, while the energy-dispersive component is connected in the beam path of the excitation radiation in the case of energy-dispersive tuning of the excitation radiation.

In yet another preferred development of the present invention, according to which the absorption element is arranged in a first printing plane in the document body and the luminescent element in a second printing plane spaced from the first printing plane, the security or value document is at an angle α> 0 ° against a normal to a document page of the security or value document according to method step (b) on the first document side with electromagnetic radiation and / or according to method step (c) on the second document side irradiated with electromagnetic radiation. Since a parallax effect occurs when the two printing planes are spaced apart, different appearances result at different viewing angles, which can also be used to authenticate the security or value document. For this purpose, the document can be viewed either with the naked eye, resulting in different viewing angles that certain components of the pattern are shifted from each other, so that a part of the front pattern, if necessary, a part of a pattern behind it hidden. Of course, such effects can also be evaluated by means of a verification device, such as by a camera traversing the security feature on a web at different azimuth angles and storing the obtained images of the security feature and processed by an image processing device, the data obtained with previously stored (simulated or comparison) data be compared. The opaque printing layer forming the window region, the absorption element and the luminescent element are first applied to individual surfaces of the polymer films, for example printed. Subsequently, the polymer films together with further substrates, for example further polymer films or other film-like materials, such as paper, from which a document body is to be produced, are gathered as layers into a stack, so that the printing layer, the absorption element and the luminescent element / n surface / n outside and / or arranged inside is / are. If the stack is welded into a monolithic laminate by the introduction of heat and pressing pressure, preferably the absorption element also fuses with the surrounding material, so that nondestructive delamination is no longer possible. If the security feature is on the outside of the laminate after lamination, it can be protected against tampering by subsequent coating with a protective varnish or with a protective film. The produced document body can then be equipped with further security features, in particular individualizing security features.

For a more detailed explanation of the invention serve the figures and examples explained below, which are merely illustrative examples of certain embodiments, but do not indicate a limitation of the scope of the invention. They show in detail:

1 shows a security or value document according to the present invention in an isometric view;

Fig. 2 shows an arrangement for illuminating a security or value document with a

Radiation source in a schematic sectional view: (a) value or security document with a luminescent element (not according to the invention); (b) A value or security document comprising an absorbent element and a luminescent element: (i) when illuminated from the document side on which the absorbent element is disposed; (ii) when illuminated from the document side on which the luminescent element is disposed;

3 shows a security or value document according to the present invention in a first embodiment in a schematic sectional view;

4 shows a security or value document according to the present invention in a second embodiment in a schematic sectional view; 5 shows a security or value document according to the present invention in a third embodiment in a schematic sectional view;

6 shows the spectral dependence of the ink / ink for the production of the absorption element; (a) uncured, without UV absorber; (b) cured without UV absorber; (c) hardened, with UV absorber;

7 shows a device according to the invention for verifying the authenticity of a security or value document according to the present invention in a first embodiment in a schematic representation;

8 shows a device according to the invention for verifying the authenticity of a security or value document according to the present invention in a second embodiment in a schematic representation.

In the following description of the figures, like reference numerals designate elements having the same function. The figures do not always show the objects to one another in scale. Furthermore, the size ratios of individual elements to those of others in a figure or between the figures are not in each case to scale shown to each other.

The security or valuable document 100 according to the invention, for example an ID card, has a front side 101 and a back side 102 (Figures 1 to 5, hereinafter referred to as an ID card for any security or value document). The front side has a plurality of personal information fields 103, 104, 105 (such as the facial image, name, date of birth of the card holder and a personal number) identifying the card holder. These data are generated inside on a surface in the card, i. for example under a protective lacquer 10 on the document body 150 in order to prevent manipulation of this card and also to avoid mechanical damage to the card.

Furthermore, the ID card 100 has a window area 210 (FIGS. 3, 4) or 210 ', 210 "(FIG. 5) in an otherwise opaque print layer 200 (FIGS. 3, 4) or 200', 200" (FIG. Fig. 5). This printing layer is printed with a printing ink containing, for example, a white pigment (such as titanium dioxide) formed with a printable binder formed by a geminal disubstituted dihydroxydiphenylcycloalkane-based PC derivative. Such printing inks are described for example in DE 10 2008 012 419 A1. insofar is referred to the local revelation. This ink has the property of forming a very strong bond with the polymer layer on which the ink is printed and with the other polymer layer which is also in contact with the printed ink in the layer composite. As a result, it is possible to form a non-delaminatable polymer layer composite, even though the printing ink has been produced in a blanket printing layer. The printing layer can be applied by any printing method, for example by a flexo or screen printing method.

Both the polymer layers 120, 130 and the upper protective coating 110, which are located above the polymer layer 140 printed with the print layer 200 (FIGS. 3, 4), as well as the polymer layer 140 and the lower protective coating 110 arranged thereunder, are transparent. The same applies to the structure of FIG. 5, in which the polymer layer 120 and the upper protective coating 110 are above the upper printing layer 200 ', the polymer layers 130, 140 between the upper printing layer 200' and the lower printing layer 200 "and the lower protective coating 1 10 are also transparent, therefore, the ID card 100 in the window area 210 is transparent.

Two markings are provided in the window area 210 to form the security feature according to the present invention, namely an absorption element 300 (FIGS. 3, 4) or 300 ', 300 "(FIG. 5) and a luminescent element 400.

For a more detailed explanation of the operation of the combination of the absorption element 300 and the luminescent element 400, reference is made to FIG. 2 (the examples are simplified by omitting the pressure layer 200 to form the window region 210 and by limiting it to the polymer layers 130, 140):

FIG. 2 a shows an ID card 100 '(not according to the invention) with a luminescent element 400, but not with an absorption element. The luminescent element is formed by a color which fluoresces by excitation with UV radiation, for example in the visible (VIS) spectral range. The UV excitation radiation S _e radiated by a UV radiation source 1200 impinges on the luminescent element and penetrates partially through the UV color (radiation fraction S _t ), because in the present case only part of the UV excitation radiation is absorbed in the UV color layer , The absorbed portion of the irradiated UV excitation radiation leads to an excitation of the luminescence element for luminescence, the then luminescence radiation Si radiates in the visible spectral range. This radiation can be perceived by an observer. The luminescence radiation is emitted over the entire spatial area. In FIG. 2a, a radiation component radiated at an angle α> 0 ° to the card normal is shown as representative of other radiation directions.

FIG. 2 b shows an ID card 100 with an absorption element 300, formed by a UV radiation-absorbing UV block varnish, and a luminescent element 400, formed by a color which can be excited by fluorescence due to UV radiation and which excites luminescence radiation in the visible Spectral region emitted, shown. The absorption element is arranged on a polymer layer 1 30, and the luminescent element is arranged on a polymer layer 140.

In Fig. 2bi, an arrangement for illuminating the ID card 100 with a UV radiation source 1 200, which is arranged on the card side, on which the absorption element 300 is shown. In this case, the excitation radiation S _e generated by the radiation source strikes the absorption element and is completely absorbed in it so that it can not reach the luminescence element 400 arranged behind it. Therefore, the luminescent element is not excited by this radiation to luminescence, at least not those parts of the luminescent element, which are covered by the absorption element. If subregions of the luminescent element are not covered by the absorption element, for example because the absorption element is smaller than the luminescence element, these regions can be excited to luminescence by the excitation radiation (not shown here). In this case, the absorption element would be schematically recognizable as a dark area in front of the luminescent areas of the luminescent element.

In Fig. 2bii an arrangement for illuminating the ID card 1 00 with the UV radiation source 1200, which is arranged in this case on the card side, on which the luminescent element 400 is shown. In this case, the excitation radiation S _e generated by the radiation source first strikes the luminescence element and excites it to luminesce, so that the luminescence element can detect visible luminescence radiation S 1 emitted. The luminescence radiation is emitted over the entire spatial area. In Fig. 2bii is only a portion of this radiation, which is emitted at an angle α> 0 ° to the card normal, is shown. Since the absorption element 300 does not absorb the emitted luminescence radiation, it will occur Radiation through the absorption element and can be observed by a viewer. In this arrangement, the luminescence radiation is therefore perceptible by the viewer. The absorption element is therefore not recognizable in front of the luminescent element. This also applies if the absorption element would cover only a partial area of the luminescent element. Part of the excitation radiation passes through the luminescent element and strikes the absorption element. The absorption element absorbs the excitation radiation.

Hereinafter, several embodiments of the invention will be explained:

According to a first embodiment of the present invention (FIG. 3), in the window region 210 a luminescent element 400 is printed on a surface 141 of the polymer layer 140, for example by means of a screen or flexographic printing process. The luminescent element is printed onto the polymer layer having the printing layer 200 for forming the window region, namely on the same surface on which the printing layer is also located. In an alternative embodiment, the luminescent element and the print layer may be on separate polymer layers. The luminescent element is formed in the form of a flat layer. This layer is placed in the window area in such a way that, for example, it is arranged centrally in the window area and is at a distance from the edges of the window area. If the luminescent element is to be on a different polymeric layer surface than the printed layer, it is again to be located so that it is within the window area, i. in an area defined by the projection of the window area parallel to the normal to the outside of the ID card. Furthermore, according to this embodiment of the invention, an absorption element 300 in the form of a pattern 250 (FIG. 1) is printed on the luminescence element 400, for example in the form of a logo or coat of arms. The absorption element, like the luminescent element 400, is placed in the window region 210, so that this too is visible through the window.

The absorption element 300 may, for example, be such that it does not absorb VIS radiation, but UVA radiation. Therefore, the absorption element is poorly visible to the naked eye. The luminescent element 400 can also be used be designed so that it is not visible to the naked eye. For this purpose, it may for example be provided with a luminescent colorant which absorbs electromagnetic radiation in the UVA range, but not VIS radiation. However, the luminescence element can emit VIS radiation when excited for luminescence.

If the absorption element 300 contains a UVA absorber which absorbs the UV radiation used to excite the luminescent element 400 for luminescence, the logo or emblem can be recognized as a shadow in the luminous surface of the luminescent element, if this is irradiated by irradiation of UVA radiation Luminescence is excited and is considered by the side opposite to the Lumineszenzanregung side of the ID card 100. The logo or coat of arms can be seen in this case from both sides of the card, since the luminescent element in the region of this pattern is not excited to luminescence.

On the other hand, if the absorption element 300 contains an absorber which absorbs electromagnetic radiation emitted as luminescence radiation by the luminescent element, the logo or coat of arms can only be recognized from the card side on which the absorption element is located in front of the luminescence element 400. If the absorption element in this case does not absorb the excitation radiation used to excite the luminescent element, the luminescence element is stimulated to luminesce over its entire surface, even if the luminescence element is irradiated by the card side with the excitation radiation on which the absorption element is arranged in front of the luminescence element. Therefore, the luminescence is then visible from the card side, on which the absorption element is located behind the luminescent element, over the entire surface of the luminescent element. In contrast, the absorption element absorbs the emitted luminescence radiation, so that the logo or coat of arms is visible from the card side, on which the absorption element is located in front of the luminescence element.

According to a second embodiment of the present invention (FIG. 4), in the window area 210 of the ID card 100, a luminescent element 400 in the form of, for example, a logo or coat of arms 250 (FIG. 1) is printed on the same surface 141 of the polymer ply 140 on which Also, the print layer 200 is printed to form the window area. Again, the luminescent element can be produced by means of a screen or flexographic printing process. In addition, as for the placement of the luminescent element in the window area, the same applies here as in the case of the first embodiment.

The absorption element 300 is printed in this embodiment in the document body 150 to the luminescent element 400 spaced and on the surface 131 of the located above the polymer layer 140 polymer layer 130. The absorption element is located in a first printing plane 310 and the luminescent element 400 in a second printing plane 410. The absorbent element is also printed in the window area in this embodiment so that it is visible from both sides of the card 100. It is located just above the luminescent element in the window region 210. The absorption element is printed in the same way as the luminescent element in the form of a logo or coat of arms 250, for example with the same shape, size and orientation and as accurately as possible vertically above the logo or coat of the luminescent element. so that, when viewed parallel to the card normal, both elements overlap one another in an aligned manner and one above the other. The absorption element can in turn be produced by means of a screen or flexographic printing process.

When the ID card 100 is viewed from both sides of the card, the same effects as to the shading of the luminescence by the absorbing member are obtained as in the first embodiment. However, a parallax effect is exhibited in this case since the absorption element 300 and the luminescent element 400 are arranged at a distance from one another. Therefore, a maximum shading shows at exactly perpendicular to the map surface (a = 0 °) made viewing or lighting. In the case of a deviation of the viewing or illumination direction from the normal (a> 0 °), this subsidence effect no longer occurs, since the absorption element absorbs the irradiated electromagnetic radiation only in regions, for example, so that the luminescence element in the non-shadowed areas luminescent. The same applies to a consideration of the ensemble of absorption element and luminescence element from a direction which is different from the card normal (a> 0 °), when the absorption element absorbs the luminescence radiation.

According to a third embodiment of the present invention (FIG. 5), in the window region 210 ', 210 "of the ID card 100, formed by two printed layers 200', 200" on the polymer layer 130 and 140, a first part 300 'of the absorption element on the surface 131 of the polymer layer 130 is arranged. A second part 300 "of the absorption element is arranged on the upper surface 141 of the polymer layer 140. Both parts are characterized by dyes or pigments absorbing differently in the VIS region, so that different colored parts of the absorption element result Logo or coat of arms: the spacing of the two parts results in a parallax effect which produces different color effects of the logo or coat when the card is viewed at different angles α to the card standard. wherein the same applies to the placement of the absorption element in the window area as in the other embodiments.

In addition, a luminescent element 400 in the form of a flat layer is printed on the lower surface 142 of the polymer layer 140, for example likewise by means of a screen or flexographic printing process. Regarding the placement of this element, the same applies as previously stated.

If the luminescent element 400 is a biluminescent security feature which can be excited to luminescence by UV radiation and emits either the VIS radiation absorbed by the first part 300 'of the absorption element or the VIS radiation, depending on the wavelength of the excitation is absorbed by the second part 300 "of the absorption element, either the one part of the logo or coat of arms is selectively visible by shading by the absorption element as a negative in a luminous surface of the luminescent element or the other part of the logo or coat of arms.

The ID card 100 in this embodiment has two print layers 200 ', 200 "each leaving a blank surface area unprinted defining window areas 210', 210". The first print layer 200 'is arranged on the surface 131 of the polymer layer 130 and the second print layer 200 "on the lower surface 142 of the polymer layer 140. The free surface regions 210', 210" are equally large with the same shape and orientation and arranged in register with one another, so that when viewed along the map normal (a = 0 °) results in a uniform window area. Between the two printing layers 200 ', 200 ", an RFID element 500 consisting of an RFID chip and an RFID antenna is arranged on the upper surface 141 of the polymer layer 140. Furthermore, the two polymer layers 120, 140 can be written on by means of a laser For this purpose it can be provided that these polymer layers are formed from PC, which additionally contains carbon particles, so that a blackening results when irradiated with the laser By means of this procedure, individualizing, in particular personalizing, objects 600, for example the facial image of the Cardholder, are inscribed in these polymer layers.

For the above examples, a UV-curable ink / ink is preferably used for the production of the absorbent element. Such ink / ink may, for example, have the composition shown in Table 1. Thus, this ink contains a film-forming agent and a radiation-absorbing agent. The film-forming agent contains a passive resin, namely, pre-oligomers, polymerizable monomeric compounds, photoinitiators and other additives. If the absorption element is not to absorb in the UV spectral range but in another spectral range, a different radiation-absorbing compound should be used instead of the UV absorber.

The selected coating raw materials a low network density is achieved, so that the material of the absorption element has thermoplasticity. The coating raw materials are so little reactive that a thermoplastic layer is produced because there is no crosslinking of the film-forming components.

The photoinitiators used essentially cover the UVA, UVB, UVC and VIS spectral range. The component 2-hydroxy-2-methyl-propiophenone absorbs especially in the short-wave UV range, so that also near-surface areas cure safely. For curing, it is preferable to use an Hg emitter whose emission lines extend over the abovementioned spectral ranges (UVA, UVB, UVC, VIS). Fig. 6 shows the absorption spectra of a print layer before cure (curve (a)) and after cure (curves (b), (c)). Curves (b), (c) differ in that no UV absorber is contained in one trap (curve (b)), while in the other case (curve (c)) the UV absorber shown in Table 1 is included ,

It can be seen that the spectral sensitivity of the uncured lacquer (curve (a)) in the long-wave range to about 430 nm (VIS: blue / violet) ranges and then increases to the short wavelength up to the UVC range (below 280 nm) , So that the spectral sensitivity can be represented, this composition contains no UV absorber. As a result of the polymerization, the photoinitiators are consumed, resulting in the absorption spectrum according to curve (b).

When using the UV absorber according to Table 1, an additional absorption in the UVA range (in particular 340 to 370 nm) can be seen in the cured composition, which also contains the most intense emission line (365 nm) of the Hg emitter. In this spectral region, the radiation supplied by the illumination lamp is absorbed for curing by the UV absorber and is therefore not available for the polymerization. However, since the spectral regions above and below this absorption region of the UV absorber are available for UV curing, the ink / ink can be UV cured.

The luminescent element, like the absorption element, is produced, for example, by means of a printing process, for example by a screen or flexographic printing process. The composition of the ink can, as in the case of the window-forming resist layer, be based on a geminal-disubstituted PC derivative

Dihydroxydiphenylcycloalkans be formed. For this purpose, reference is again made to DE 10 2008 012 419 A1.

The printing layer for forming the window, the absorption element and the luminescent element and optionally further printing elements are printed separately on polymer films or otherwise formed on them, or as in the examples according to FIGS. 3, 4, 5 partly on the same polymer layer. Then, these films are collected into a stack and in a known manner using pressure under heat to a monolithic Laminated polymer block. The lamination is in the case of PC sheets typically in a hot / cold lamination press in a first step at 170 to 200 'C and a pressure of 50 to 600 N / cm ² and in a second step with cooling to about room temperature and below the same pressure. In the case of PET films, the lamination takes place at a higher temperature, for example at 220 ° C. The polymer films fuse together. The absorption element formed from the thermoplastic polymer formulation is also soft in this joining step and merges with the polymer film surfaces adjacent thereto, so that a very strong compound results in this area, which can no longer be delaminated without destruction. After lamination, the individual ID cards are separated, for example, by punching out of the lamination.

The adhesive strength of the polymer layers in the laminate, as determined by a peel test, is above 7 N / cm. In order to determine the authenticity of the ID card 100, it can either be checked with the naked eye for the presence of the absorption element and of the luminescence element which overlaps it. Alternatively, the card may also be inspected in a verification device 1000 (Figures 7, 8). This has a holder 1 100, which allows to examine the card from both sides. In a first embodiment (arrangement according to FIG. 7), the verification device 1000 has, in addition to the holder 1100, four illumination lamps 1200 which illuminate a first card page 101 and a second card page 102 of the card 100. Furthermore, the device also has imaging optics 1300 arranged on both sides of the card as well as radiation receivers 1400, for example CCD sensors. The radiation receivers should be sensitive in the entire spectral range in which an emission signal of the luminescence element is to be expected.

Of the illumination lamps 1200 electromagnetic radiation, for example UVA radiation according to the present invention is irradiated on both sides of the security element. The radiation emitted by the luminescent element and optionally modified by the absorption element (spatially and spectrally) is conducted on both sides via the imaging optics 1300 onto the radiation receivers 1400, wherein the spatial arrangements of the emitted radiation are imaged on the imaging optics on the radiation receiver. The radiation received by the radiation receivers is recorded spatially resolved and converted into electrical signals which are fed to a data processing device 1500 with a display 1550.

For example, the luminescent images taken by the two map pages 101, 102 may be displayed on the display 1550 of the data processing device 1500. In order to assess the authenticity of the card 100, these two images can be charged with each other, for example, by point (pixel) as subtracted from each other. If necessary, one of the two images must first be mirrored so that a congruence can be generated.

In a further embodiment of the verification method (arrangement according to FIG. 8), the spectral properties of the security feature are additionally determined. For this purpose, the card 100 is again clamped in a holder 1 100, which allows to examine the card on both sides.

Electromagnetic radiation is guided, for example, by lasers 1200 in focused beams in the x, y direction over the sides of the cards 101, 102, so that the security feature according to the present invention is scanned in rows or in a grid. The luminescence radiation produced in each case is conducted via energy-dispersive elements 1300 ', for example diffraction gratings, and then onto radiation receivers 1400, for example CCD sensors. The signals obtained contain both the information about the location of the luminescence, in that the security feature is only scanned point by point, as well as on the spectral composition of the luminescence radiation. The radiation recorded by the radiation receivers is converted into electrical signals and sent to a data processing device 1500 with a display 1550. There the data are synthesized again to luminescence images. The luminescence images from the two sides of the card can be compared with one another in the data processing device, wherein additionally the information about the spectral composition of the luminescence radiation can be evaluated. Table 1: Composition of a printing ink / ink for the absorbent element

Proportion [wt.%] Component CAS no.

(a) Film-forming agent:

(i) Passive resin:

8 Mixture of fully polymerized methacrylate lacquer resins, dissolved in:

Methyl methacrylate and 80-62-6 butyl methacrylate 97-88-1

(ii) Pre-oligomer:

10 hydroxy-functional monourethane acrylate

10 urethane acrylate oligomer dissolved in:

2- (butylcarbamoyloxy) ethyl acrylate 63225-53-6

(iii) Polymerizable monomeric compound:

12 isobornyl acrylate 5888-33-5

10 Caprolactone acrylate 1 10489-05-9

14.5 N-vinylcaprolactam 2235-00-9

5 tetrahydrofurfuryl acrylate 2399-48-6

5 ethoxylated lauryl acrylate 125304-1 1 -2

5 ethoxyethoxyethyl acrylate 7328-17-8

(iv) photoinitiator:

2 1, 1 '- (phenylphosphinylidene) -bis [1- (2,4,6-1,62881 -26-7-trimethylphenyl) -methanone

2 diphenyl (2,4,6-trimethylbenzoyl) phosphine oxide 278-355-8

2 ethyl (2,4,6-trimethylbenzoyl) phenylphosphinate 84434-1 1 -7

6 2-hydroxy-2-methyl-propiophenone 747398-5

(b) Radiation absorbing agent

2.5 UV absorbers EC index:

607-176-00-3

Further additives:

5 Polyalkylenecarbonatediol (coupling agent) 132459-81 -5

1 silicone (leveling additive, deaerator, modified polymer LIST OF REFERENCE NUMBERS

100, 100 'security or value document, ID card

101 front side, first document page, first side of the card

102 back side, further document page, second side of the card

103, 104, 105 Field with personal data

1 10 protective coating

120 laser-writable polymer layer

130 polymer layer

140 laser-writable polymer layer

131, 141, 142 surface

150 document bodies

200, 200 ', 200 "print layer

210, 210 ', 210 "window area

250 patterns

300, 300 ', 300 "absorption element

310 first printing plane

400 luminescent element

410 second printing plane

500 RFID element

600 personalizing object, facial image

1000 verification device

1 100 bracket

1200 lighting lamps

1300 imaging optics

1300 'dispersive element, diffraction grating

1400 radiation receiver, CCD sensor

1500 data processing device

1550 display

S _e irradiated excitation radiation

S | luminescence

S _t excitation radiation passing through the luminescent element α angle to the document (card) normal

Claims

claims:

1 . A security or value document (100) formed from a document body (150) produced by laminating at least two interconnected polymer layers (120, 130, 140), the document body (150) comprising at least one window area (210, 210 ', 210 ") and in each case at least one absorption element (300, 300 ', 300") and in each case at least one with the at least one absorption element (300, 300', 300 ") in the at least one window region (210, 210 ', 210") ") are located overlapping luminescent element (400), characterized in that at least the at least one absorption element (300, 300 ', 300") is formed by a thermoplastic material.

2. security or document of value (100) according to claim 1, characterized in that a for forming the at least one absorption element (300, 300 ', 300 ") used absorbent UV-curing.

3. Security or value document (100) according to one of the preceding claims,

characterized in that the at least one absorption element (300, 300 ', 300 ") is absorbing in the UV spectral range.

4. security or value document (100) according to one of the preceding claims,

characterized in that the at least one luminescent element (400) can be excited by means of UV radiation for luminescence.

5. security or value document (100) according to one of the preceding claims,

characterized in that at least one absorption element (300, 300 ', 300 ") in a first printing plane (310) and at least one luminescent element (400) in a second printing plane (410) spaced apart from the first printing plane (310) in the document body (150 ) are arranged.

6. security or value document (100) according to one of the preceding claims,

characterized in that the at least one window area (210, 210 ', 210 ") is protected by at least one opaque pressure layer on at least one surface (141) of the at least two polymer layers (120, 210, 210). 130, 140) is formed.

7. security or value document (100) according to one of the preceding claims,

characterized in that at least one (120) of the at least two polymer la gene (120, 130, 140) is adapted to be writable by means of a laser beam.

8. security or value document (100) according to one of the preceding claims,

characterized in that the at least one absorption element (300, 300 ', 300 ") can be produced with an absorption medium which contains the following constituents:

(A) at least one film-forming agent based on a UV-curable varnish, which results in a thermoplastic material by UV curing, and

(B) at least one radiation-absorbing agent, for example at least one dye and / or at least one pigment.

9. security or document of value according to claim 8, characterized in that the film-forming agent contains the following components:

(i) at least one passive resin;

(ii) at least one pre-oligomer;

(iii) at least one polymerizable monomeric compound; and

(iv) at least one photoinitiator.

10. A method for checking the authenticity of a security or value document (100), comprising the following method steps:

(a) providing the security or value document (100) to be tested, which is formed from a document body (150) which is produced by laminating at least two interconnected polymer layers (120, 130, 140), wherein the document body (150) at least one window area (210, 210 ', 210 ") and in the at least one window area (210, 210', 210") in each case at least one absorption element (300, 300 ', 300 ") and in each case at least one with the at least one Absorption element (300, 300 ', 300 ") overlapping luminescent element (400) are located and wherein at least the at least one absorption element (300, 300', 300") is formed by a thermoplastic material;

(B) irradiating the security or value document (100) on a first document page (101) with electromagnetic radiation, which is adapted to excite the luminescent element (400), and spatially resolved registering the luminescence on the first document page (101) first luminescent image modified by an absorption element (300, 300 ', 300 ") is generated;

(C) irradiating the security or value document (100) on a second document page (102) with electromagnetic radiation, which is suitable, the Excite luminescent element (400), and spatially resolved register the luminescence on the second document side (102), wherein a second Lumineszenzbild is generated;

(d) comparing the first luminescent image with the second luminescent image and registering a difference between the first luminescent image and the second luminescent image.

1 . Method for checking the authenticity of a security or value document (100) according to claim 10, characterized in that the luminescence on the first document page (101) and / or the luminescence on the second document page (102) of the security or value document (100) registered energy-dispersive and the registered energy distribution of the luminescence on the first document page (101) and / or on the second document page (102) are compared with a corresponding reference energy distribution.

2. A method for checking the authenticity of a security or value document (100) according to any one of claims 10 and 1 1, characterized in that at least one absorption element (300, 300 ', 300 ") in a first printing plane (310) in the document body (150) and at least one luminescent element (400) are arranged in a second printing plane (410) spaced from the first printing plane (310), and that the security or value document (100) is at an angle α> 0 ° to a normal to a document page (101, 102) of the security or value document (100) is irradiated according to method step (b) on the first document page (101) with electromagnetic radiation and / or according to method step (c) on the second document page (102) with electromagnetic radiation.