DE102017001598A1 - Security element transfer material and method of making same - Google Patents

Abstract

The invention relates to a security element transfer material comprising a security element laminate comprising a plurality of layers including at least one optically variable effect deploying feature layer and an adhesive layer, the feature layer being the layer following transfer of a security element a value document substrate facing an observer; a carrier substrate detachably connected to the feature layer of the security element laminate; a mask layer having at least one recess and arranged such that the security element laminate is in the region of the at least one recess of the mask layer Impact of pressure and optionally heat can be glued by means of the adhesive layer with the value document substrate and then detached from the carrier substrate, wherein in the region outside of the at least one recess of the mask layer sticking of the S. security element layer composite with the value document substrate and a subsequent detachment of the security element layer composite from the carrier substrate is prevented.

Description

The invention relates to a security element transfer material, comprising: a security element laminate having a plurality of layers including at least one optically variable effect deploying feature layer and an adhesive layer, the feature layer being the layer following transfer of a security element a value document substrate faces a viewer; a carrier substrate detachably connected to the feature layer of the security element laminate; a mask layer having at least one recess, which is arranged so that the security element layer composite can be bonded in the region of the at least one recess of the mask layer by the action of pressure and optionally heat by means of the adhesive layer with the value document substrate and then detached from the carrier substrate, wherein in the area outside the at least one recess of the mask layer, adhesion of the security element layer composite to the value document substrate and subsequent detachment of the security element layer composite from the carrier substrate is prevented. The invention further relates to methods for producing the security element transfer material.

Valuables, such as branded goods or documents of value, in particular banknotes, are often provided with security elements which allow verification of the authenticity of the object of value and at the same time serve as protection against unauthorized reproduction. Frequently, the security elements used for this purpose are not provided individually, but in the form of transfer belts with a plurality of security elements designed as transfer elements. Characteristic of transfer belts is that the security elements are prepared on a carrier layer, wherein the order of the layers of the transfer elements must be reversed, as it should be present later on the object to be protected. The carrier layer is typically removed from the layer structure of the security elements during transfer. On the opposite side of the carrier layer, the transfer tapes have an adhesive layer, usually of a heat-sealing adhesive or heat-sealing lacquer, which melts during the transfer of the security elements and glued the security elements with the object to be secured. The transfer tape is placed with the heat-seal adhesive layer on the object and pressed by means of a heated transfer punch or a transfer roller and transferred in the outline of the heated transfer punch on the object. Transfer elements, transfer belts and the transfer of transfer elements to target substrates are for example in EP 0 420 261 B1 and the WO 2005/108108 A2 described.

In practice, it has been found that, especially when using more stable and / or flexible UV embossing lacquers, transfer elements, e.g. Do not tear off transfer patches cleanly at the edge of the heated area. This leads to unclean edges and possibly also to the fact that remains stuck to the transferred patches remnants of the film composite, which were torn from the layer composite in the non-bonded area. These residues are undesirable because they later dissolve and, in the form of impurities, undergo subsequent processing steps, e.g. Printing processes, affect.

Instead of shaping the transfer elements by the transfer punch during the transfer process, the individual transfer elements can already be prefabricated in the desired outline shape on the transfer belt. The prefabrication of separate individual security elements is e.g. makes sense if the security elements have a layer structure that makes exact separation of the entire layer structure during the transfer process difficult. This is e.g. then the case when the layer structure of the security element to be transmitted contains a permanent carrier substrate, for example a plastic film. Carrier substrates within the layer structure of security elements are useful if the security elements must be made particularly stable, for example, if they must be self-supporting, because they should be used to close a through opening in the object to be secured. Depending on the object and size of the opening to be closed, high demands can be placed on the stability of the security elements. Banknotes, for example, are exposed to high stresses during their orbit, are tapped, kinked and possibly exposed to moisture. The security elements must be able to withstand these stresses as well as the banknote paper itself, since otherwise there would be the danger that after a certain circulation time the through opening in the banknote would be exposed.

Security elements whose layer construction comprises a stable carrier substrate, typically a plastic film, must be present on a transfer material as prefabricated individual elements, which means that the outline shapes of the security elements in the security element material must be precut beforehand. The pre-cutting can be carried out for example by means of a laser. This results in the problem that the depth of cut must be controlled very precisely, on the one hand the complete layer structure to sever the security element, on the other hand, but not to injure the carrier material which is separated during the transfer. As support materials usually plastic films are used. Although plastic films have a high tear resistance, but a low tear resistance. When they are cut, it is almost unavoidable that the security element transfer material in the form of continuous material tears on valuables in some places during the transfer process of the security elements. It must also be taken into account that the layer structures to be cut or the carrier sheets which are not to be cut are materials with thicknesses in the micrometer range. The security element laminates typically have thicknesses in the range of about 20 μm to 30 μm, and the carrier foils typically have thicknesses in the range of 10 μm to 20 μm. With the precision required here, it is problematic to perform a cutting operation so that, although the security element layer composite is completely severed, but the cutting process is stopped in time so that the carrier film is not cut anywhere. Due to the partially cut support film, however, the security element transfer material loses stability, may even rupture, which is why accurate and smooth application of the security elements from the endless material to the products to be protected is no longer guaranteed.

A security element transfer material in the form of a continuous material, pre-cut in the security elements in the desired contours, and the precut elements can then be transferred without risk of tearing of the carrier material on products to be secured, is known from WO 2010/031543 A1 known. The security element transfer material is a continuous material, in particular a belt several hundred meters long and a width of a few millimeters / centimeter to several meters. The security element transfer material comprises a security element layer composite, ie the actual security element material, and a temporary carrier, ie the material on which the security elements are "stored". The temporary carrier is based on a carrier layer composite, consisting of a first and a second temporary carrier substrate, which are permanently bonded by means of an adhesive layer. The security element laminate is connected to a temporary support either directly or by means of a release layer. The release layer is conventional and facilitates the detachment of the security elements from the temporary carrier during the transfer process to a valuable item. The temporary support is located on the side of the security element layer composite facing an observer after the transmission of the security elements. The term "temporary" carrier substrates expresses that, in contrast to the "permanent" carrier substrate, these carrier substrates are not part of the security elements. The formation of the temporary carrier as a carrier layer composite avoids that when cutting the outline shapes of the security elements, the stability of the temporary carrier is impaired by cutting the temporary carrier. A comparable result can not be achieved simply by making a single temporary carrier film thicker, since plastic films have a low resistance to tear propagation, ie if a film is even slightly cut, it easily tears further and possibly completely through. Unlike the carrier layer composite, consisting of a first and a second temporary carrier substrate which are permanently bonded by means of an adhesive layer: even if one of the temporary carrier substrates is completely severed, the further temporary carrier substrate (or possibly the other temporary carrier substrates) remains undamaged as a rule and accordingly stable. The adhesive also forms an additional "buffer zone" between the temporary carrier substrates.

The in the WO 2010/031543 A1 The method described is to de-mesh patch films before application. For this purpose, the forms of the patch are punched with a punch into the layers to be transferred, ie the layers are pierced with the punch. During weeding, these layers are then peeled off in the areas outside the patch, while remaining in the patch areas on the carrier film. This ensures that the patches have clean edges after application. A disadvantage of this method, however, is that the layer structure must have sufficient stability for weeding, which can be done for example by introducing a stabilizing film layer. However, this is again associated with a thickness increase of the finished patch, which is undesirable in practice.

It is an object of the invention to provide a method of transmitting a transfer element, e.g. a transfer patch, in which on the one hand a small thickness of the finished patch and on the other hand a reliable transfer of the patch can be achieved with clean edges.

This object is achieved by the feature combination defined in the main claim and in the independent claims. Further developments are the subject of the dependent claims.

Summary of the invention

1. 1. (First aspect of the invention) A security element transfer material comprising
   • a security element laminate having a plurality of layers including at least one optically variable effect deployable feature layer and an adhesive layer, particularly a heat seal lacquer layer, wherein the feature layer is the layer that after transferring a security element to a value document substrate to a viewer is facing;
   • a carrier substrate detachably connected to the feature layer of the security element laminate;
   • a mask layer having at least one recess, which is designed such that the security element layer composite can be bonded to the value document substrate in the region of the at least one recess of the mask layer by the action of pressure and optionally heat by means of the adhesive layer and then detached from the carrier substrate, wherein Outside the at least one recess of the mask layer, adhesion of the security element layer composite to the value document substrate and subsequent detachment of the security element layer composite from the carrier substrate is prevented.

• 2. (Bevorzugte Ausgestaltung) Sicherheitselement-Transfermaterial nach Klausel 1, wobei die Maskenschicht durch eine Folie gebildet ist.
• 3. (Bevorzugte Ausgestaltung) Sicherheitselement-Transfermaterial nach Klausel 1 oder 2, wobei die einen optisch variablen Effekt entfaltende Merkmalsschicht auf einer reflektierenden Prägestruktur beruht.
• 4. (Bevorzugte Ausgestaltung) Sicherheitselement-Transfermaterial nach Klausel 3, wobei die reflektierende Prägestruktur wie folgt beschaffen ist: (a) eine reflektierende diffraktive Struktur oder (b) eine reflektierende Mikrostruktur in Form eines Mosaiks aus einer Vielzahl reflektierender Mosaikelemente, die durch die Parameter Größe, Umrissform, Reliefform, Reflexionsvermögen und räumliche Ausrichtung charakterisiert sind und die ein vorbestimmtes Motiv bilden, indem verschiedene Gruppen von Mosaikelementen mit unterschiedlichen charakteristischen Parametern einfallendes Licht in unterschiedliche Raumbereiche reflektieren, und bei dem die Mosaikelemente eine laterale Abmessung unterhalb der Auflösungsgrenze des Auges aufweisen.
• 5. (Bevorzugte Ausgestaltung) Sicherheitselement-Transfermaterial nach Klausel 3 oder 4, wobei die reflektierende Prägestruktur (i) als Reflexionsschichten opake Metallschichten aufweist, oder (ii) als Reflexionsschichten transparente, hochbrechende Schichten aufweist, oder (iii) als Reflexionsschichten Dünnschichtelemente mit Farbkippeffekt, insbesondere mit einer reflektierenden Schicht und einer semitransparenten Schicht und einer dazwischen angeordneten dielektrischen Schicht aufweist, oder (iv) als Reflexionsschichten Schichten aus flüssigkristallinem Material, insbesondere aus cholesterischem flüssigkristallinem Material, aufweist oder (v) als Reflexionsschichten Druckschichten auf Grundlage von Effektpigment-Zusammensetzungen mit betrachtungswinkelabhängigem Effekt oder mit unterschiedlichen Farben bei Auflicht-Betrachtung und Durchlicht-Betrachtung aufweist oder (vi) als Reflexionsschichten den folgenden mehrschichtigen Aufbau aufweist: zwei semitransparente Schichten und eine zwischen den zwei semitransparenten Schichten angeordnete dielektrische Schicht, wobei der mehrschichtige Aufbau bei der Betrachtung im Auflicht einerseits und bei der Betrachtung im Durchlicht andererseits unterschiedliche Farbtöne aufweist.
• 6. (Zweiter Aspekt der Erfindung) Verfahren zum Herstellen eines Sicherheitselement-Transfermaterials nach einer der Klauseln 1 bis 5, umfassend
  1. a) das Bereitstellen eines Trägersubstrats;
  2. b) das Versehen des Trägersubstrats mit einem Sicherheitselement-Schichtverbund, der eine Vielzahl von Schichten aufweist, wozu mindestens eine einen optisch variablen Effekt entfaltende Merkmalsschicht und eine Klebstoffschicht, insbesondere eine Heißsiegellackschicht, gehören, wobei die Merkmalsschicht die Schicht ist, die nach einer Übertragung eines Sicherheitselements auf ein Wertdokumentsubstrat einem Betrachter zugewandt ist, wobei das Trägersubstrat mit der Merkmalsschicht des Sicherheitselement-Schichtverbunds abtrennbar verbunden wird;
  3. c) das separate Bereitstellen einer zumindest eine Aussparung aufweisenden Maskenschicht;
  4. d) das Verkleben der Maskenschicht mit dem im Schritt b) erhaltenen Sicherheitselement-Schichtverbund, sodass ein Sicherheitselement-Transfermaterial erhalten wird, bei dem der Sicherheitselement-Schichtverbund im Bereich der zumindest einen Aussparung der Maskenschicht durch Einwirkung von Druck und gegebenenfalls Wärme mittels der Klebstoffschicht mit einem Wertdokumentsubstrat verklebt und dann vom Trägersubstrat abgelöst werden kann, wobei im Bereich außerhalb der zumindest einen Aussparung der Maskenschicht ein Verkleben des Sicherheitselement-Schichtverbunds mit dem Wertdokumentsubstrat und ein darauffolgendes Ablösen des Sicherheitselement-Schichtverbunds vom Trägersubstrat verhindert wird.
• 7. (Dritter Aspekt der Erfindung) Verfahren zum Herstellen eines Sicherheitselement-Transfermaterials nach einer der Klauseln 1 bis 5, umfassend
  1. a) das Bereitstellen eines Trägersubstrats;
  2. b) das Versehen des Trägersubstrats mit einem Sicherheitselement-Schichtverbund, der eine Vielzahl von Schichten aufweist, wozu mindestens eine einen optisch variablen Effekt entfaltende Merkmalsschicht und eine Klebstoffschicht, insbesondere eine Heißsiegellackschicht, gehören, wobei die Merkmalsschicht die Schicht ist, die nach einer Übertragung eines Sicherheitselements auf ein Wertdokumentsubstrat einem Betrachter zugewandt ist, wobei das Trägersubstrat mit der Merkmalsschicht des Sicherheitselement-Schichtverbunds abtrennbar verbunden wird;
  3. c) das Aufbringen einer für das Erzeugen einer zumindest eine Aussparung aufweisenden Maskenschicht geeigneten Folie auf den im Schritt b) erhaltenen Sicherheitselement-Schichtverbund, wobei die Folie lediglich im Bereich außerhalb der zu erzeugenden zumindest einen Aussparung mit dem Sicherheitselement-Schichtverbund verklebt wird und im Bereich der zu erzeugenden zumindest einen Aussparung nicht mit dem Sicherheitselement-Schichtverbund verklebt wird;
  4. d) das Erzeugen zumindest einer Aussparung in der im Schritt c) erhaltenen Folie, um auf diese Weise eine Maskenschicht zu erzeugen, sodass ein Sicherheitselement-Transfermaterial erhalten wird, bei dem der Sicherheitselement-Schichtverbund im Bereich der zumindest einen Aussparung der Maskenschicht durch Einwirkung von Druck und gegebenenfalls Wärme mittels der Klebstoffschicht mit einem Wertdokumentsubstrat verklebt und dann vom Trägersubstrat abgelöst werden kann, wobei im Bereich außerhalb der zumindest einen Aussparung der Maskenschicht ein Verkleben des Sicherheitselement-Schichtverbunds mit dem Wertdokumentsubstrat und ein darauffolgendes Ablösen des Sicherheitselement-Schichtverbunds vom Trägersubstrat verhindert wird.
• 8. (Bevorzugte Ausgestaltung) Verfahren nach Klausel 7, wobei im Schritt d) das Erzeugen zumindest einer Aussparung in der im Schritt c) erhaltenen Folie mittels Ausstanzen erfolgt und das ausgestanzte Folienmaterial entfernt wird.
• 9. (Bevorzugte Ausgestaltung) Verfahren nach Klausel 8, wobei im Schritt des Ausstanzens nicht nur die in eine Maskenschicht zu überführende Folie mit Stanzlinien versehen wird, sondern auch der zu transferierende Sicherheitselement-Schichtverbund mit Stanzlinien versehen wird.
• 10. (Vierter Aspekt der Erfindung) Verfahren zum Herstellen eines Sicherheitselement-Transfermaterials nach einer der Klauseln 1 bis 5, umfassend
  1. a) das Bereitstellen eines Trägersubstrats;
  2. b) das Versehen des Trägersubstrats mit einem Sicherheitselement-Schichtverbund, der eine Vielzahl von Schichten aufweist, wozu mindestens eine einen optisch variablen Effekt entfaltende Merkmalsschicht und eine Klebstoffschicht, insbesondere eine Heißsiegellackschicht, gehören, wobei die Merkmalsschicht die Schicht ist, die nach einer Übertragung eines Sicherheitselements auf ein Wertdokumentsubstrat einem Betrachter zugewandt ist, wobei das Trägersubstrat mit der Merkmalsschicht des Sicherheitselement-Schichtverbunds abtrennbar verbunden wird;
  3. c) das Versehen des im Schritt b) erhaltenen Sicherheitselement-Schichtverbunds mit einer zumindest eine Aussparung aufweisenden Maskenschicht, wobei die Maskenschicht drucktechnisch mittels eines Lacks erzeugt wird, sodass ein Sicherheitselement-Transfermaterial erhalten wird, bei dem der Sicherheitselement-Schichtverbund im Bereich der zumindest einen Aussparung der Maskenschicht durch Einwirkung von Druck und gegebenenfalls Wärme mittels der Klebstoffschicht mit einem Wertdokumentsubstrat verklebt und dann vom Trägersubstrat abgelöst werden kann, wobei im Bereich außerhalb der zumindest einen Aussparung der Maskenschicht ein Verkleben des Sicherheitselement-Schichtverbunds mit dem Wertdokumentsubstrat und ein darauffolgendes Ablösen des Sicherheitselement-Schichtverbunds vom Trägersubstrat verhindert wird.

The carrier substrate of the security element transfer material is in particular a film. However, the carrier substrate of the security element transfer material can also be a carrier layer composite, consisting of a first film and a second film, which are permanently bonded by means of an adhesive layer.

• 2. (Preferred Embodiment) Security element transfer material according to clause 1, wherein the mask layer is formed by a foil.
• 3. (Preferred Embodiment) Security element transfer material according to clause 1 or 2, wherein the feature layer exhibiting an optically variable effect is based on a reflective embossed structure.
• 4. (Preferred Embodiment) A security element transfer material according to clause 3, wherein the reflective embossing structure is constituted by: (a) a reflective diffractive structure or (b) a mosaic reflective mosaic of a plurality of reflective mosaic elements defined by the parameters Size, outline shape, relief shape, reflectivity, and spatial orientation, and which form a predetermined motif by having different groups of mosaic elements with different characteristic parameters reflecting incident light into different spatial areas, and with the mosaic elements having a lateral dimension below the resolution limit of the eye.
• 5. (Preferred Embodiment) Security element transfer material according to clause 3 or 4, wherein the reflective embossed structure (i) has opaque metal layers as reflective layers, or (ii) has transparent, high-index layers as reflective layers, or (iii) as reflective layers thin-film elements with color-shift effect, comprising, in particular, a reflective layer and a semitransparent layer and a dielectric layer arranged therebetween, or (iv) as reflective layers, layers of liquid-crystalline material, in particular of cholesteric liquid-crystalline material, or (v) as reflective layers printed layers based on effect pigment compositions with viewing angle-dependent Effect or with different colors in incident light observation and transmitted light observation, or (vi) as reflective layers has the following multilayer structure: two semitransparent layers and a dielectric layer arranged between the two semitransparent layers, the multilayer structure having different hues when viewed in incident light on the one hand and when viewed in transmitted light on the other hand.
• 6. (Second aspect of the invention) A method of manufacturing a security element transfer material according to any one of clauses 1 to 5, comprising
  1. a) providing a carrier substrate;
  2. b) providing the backing substrate with a security element laminate comprising a plurality of layers including at least one feature layer exhibiting an optically variable effect and an adhesive layer, in particular a heat sealing lacquer layer, the feature layer being the layer which after transfer of a Security element facing a viewer on a value document substrate, wherein the carrier substrate is detachably connected to the feature layer of the security element laminate;
  3. c) the separate provision of a mask layer having at least one recess;
  4. d) adhering the mask layer to the security element obtained in step b); Layer composite, so that a security element transfer material is obtained in which the security element layer composite in the region of the at least one recess of the mask layer can be bonded by the action of pressure and optionally heat by means of the adhesive layer with a value document substrate and then detached from the carrier substrate, wherein in the area outside the at least one recess of the mask layer is prevented from sticking together the security element layer composite with the value document substrate and a subsequent detachment of the security element layer composite from the carrier substrate.
• 7. (Third aspect of the invention) A method of manufacturing a security element transfer material according to any one of clauses 1 to 5, comprising
  1. a) providing a carrier substrate;
  2. b) providing the backing substrate with a security element laminate comprising a plurality of layers including at least one feature layer exhibiting an optically variable effect and an adhesive layer, in particular a heat sealing lacquer layer, the feature layer being the layer which after transfer of a Security element facing a viewer on a value document substrate, wherein the carrier substrate is detachably connected to the feature layer of the security element laminate;
  3. c) the application of a suitable for generating a mask layer having at least one recess layer on the security element layer composite obtained in step b), wherein the film is glued only in the area outside the at least one recess to be generated with the security element layer composite and in the area the at least one recess to be produced is not adhesively bonded to the security element layer composite;
  4. d) generating at least one recess in the film obtained in step c) so as to produce a mask layer, so that a security element transfer material is obtained in which the security element layer composite in the region of the at least one recess of the mask layer by the action of Pressure and optionally heat can be glued by means of the adhesive layer with a value document substrate and then detached from the carrier substrate, wherein in the area outside the at least one recess of the mask layer, bonding of the security element layer composite with the value document substrate and a subsequent detachment of the security element layer composite is prevented from the carrier substrate ,
• 8. (Preferred embodiment) Method according to clause 7, wherein in step d) the production of at least one cutout in the foil obtained in step c) takes place by means of punching and the punched foil material is removed.
• 9. (Preferred embodiment) Method according to Clause 8, wherein in the punching step, not only the film to be transferred into a mask layer is provided with punched lines, but also the security element layer composite to be transferred is provided with punched lines.
• 10. (Fourth aspect of the invention) A method of manufacturing a security element transfer material according to any one of clauses 1 to 5, comprising
  1. a) providing a carrier substrate;
  2. b) providing the backing substrate with a security element laminate comprising a plurality of layers including at least one feature layer exhibiting an optically variable effect and an adhesive layer, in particular a heat sealing lacquer layer, the feature layer being the layer which after transfer of a Security element facing a viewer on a value document substrate, wherein the carrier substrate is detachably connected to the feature layer of the security element laminate;
  3. c) providing the security element layer composite obtained in step b) with a mask layer having at least one recess, wherein the mask layer is produced by means of a lacquer, so that a security element transfer material is obtained in which the security element laminate in the region of at least one Recess of the mask layer can be bonded by the action of pressure and optionally heat by means of the adhesive layer with a value document substrate and then detached from the carrier substrate, wherein in the area outside of the at least one recess of the mask layer, bonding the security element layer composite with the value document substrate and a subsequent detachment of the security element Layer composite is prevented from the carrier substrate.

Detailed description of the invention

An observation in incident light is for the purposes of this invention an illumination of the value document from one side and a viewing of the value document from the same side. A reflection in incident light is therefore present, for example, when the front of the document of value is illuminated and also viewed.

A reflection in transmitted light in the sense of this invention is a lighting of a value document from one side and a viewing of the value document from another side, in particular the opposite side. A reflection in transmitted light is thus present, for example, when the back of the document of value is illuminated and the front side of the document of value is viewed. The light thus shines through the document of value.

In the case of a document of value within the meaning of the invention, it can be e.g. to trade banknotes or identity documents, but also shares, certificates, stamps, checks, tickets, tickets, air tickets, identity cards, visa stickers or the like, as well as labels, seals, packaging or other elements. The simplified term "value document" therefore always includes documents of the type mentioned below. The term value document also includes security paper for the production of banknotes. The term banknote includes in particular a paper banknote, a polymer banknote or a film composite banknote.

In the transfer element, i. the security element to be transferred can in particular be a transfer patch or transfer label or a transfer strip or transfer thread. The invention will be described in the following detailed description with reference to the example of a transfer patch, so it should not be construed as limited to a patch.

Instead of the term feature layer, the term functional layer is also used herein. The functional layer can be a single (functional) layer or multiple (functional) layers.

Instead of the phrase "a mask layer having at least one recess", the term shadow mask is also used herein.

Transfer patches find e.g. in the first series of EURO banknotes application, e.g. in the form of the hologram patch applied to the EURO 50 banknote.

According to the invention, a transfer material according to the following preferred embodiment can be realized:

Provision of a transfer film structure:

The starting point is an ordinary transfer film structure, as e.g. also used for the application of transfer strips. Such a construction is based on a carrier film, one or more functional layers located thereon, and a heat sealing lacquer layer. The functional layers provide optically variable security features, e.g. Embossed holograms, micromirror elements, subwavelength structures, and the like. The optically variable security features are typically provided by an embossing lacquer, e.g. a UV embossing lacquer, with microstructures embossed therein and a metallization present at least in some areas. Often there are still other layers, e.g. Protective lacquers or primers, which are then joined at the end of the heat sealing lacquer. The heat sealing lacquer layer may actually consist of several layers of different lacquers. The functional layers have only weak adhesion to the carrier film, which is e.g. can be achieved by poor adhesion of the embossing lacquer to the carrier film or by the introduction of a special separating layer.

Applying a shadow mask:

On the above-mentioned transfer film structure, a shadow mask is applied according to the invention. The shadow mask can in particular be given by a perforated foil from which the shapes of the desired patches are punched out. Such a perforated film is advantageously laminated or adhered to the transfer film structure. This can be done with a laminating adhesive or simply by using the bond strength of the already existing heat sealing lacquer. Advantageously, the side facing the heat sealing lacquer may be provided beforehand with a primer which allows a better bonding of perforated foil and functional layers. Perforated film and functional layers can also be bonded only in certain areas. Theoretically, the perforated film can only be glued to the functional layers by the melting of the heat-sealing lacquer during application. In practice, however, it is advantageous to prevent slippage of the perforated film by adhering at least in regions.

Application:

During application, the patch is heated as usual, with the heat-sealing lacquer melting and bonding to the (value-document) substrate. The (document of value) substrate may be a paper or paper Polymer substrate or a paper / polymer composite substrate.

The heating may be carried out in regions (i.e., in an area slightly larger than the patch itself) or over the entire area. If one then separates the film structure from the (value-document) substrate, then the functional layers remain in the patch area on the (value-document) substrate, since the heat-sealing lacquer to the paper provides greater adhesion than the adhesion between the carrier film and functional layers. In the area outside the patch, the functional layers remain on the carrier foil.

1. i) Verhinderung des Verklebens von Funktionsschichten und (Wertdokument-)Substrat.
2. ii) Stabilisierung des Schichtverbunds zur Verhinderung des Aufreißens der Funktionsschicht in Bereichen außerhalb des Patches.

The mask foil fulfills two tasks:

1. i) Preventing the sticking of functional layers and (value-document) substrate.
2. ii) stabilization of the layer composite to prevent the tearing of the functional layer in areas outside the patch.

Further preferred embodiments:

Alternative methods for providing the shadow mask:

1. a) Instead of laminating a finished perforated mask on the transfer composite (see the above preferred embodiment, wherein the laminating usually registered or accurate register), the corresponding film can be perforated only after the lamination. The film is glued to the transfer film only in the areas outside of the later patch (by melting or activation of the heat-sealing lacquer or by means of a partially applied laminating adhesive). Due to the positioning tolerances of bonding and punching cut, it is advantageous to let the bond end with sufficient distance from the patch. The patch shapes are then punched out and the foil in the areas of the holes e.g. removed by compressed air or by pulling over a sharp edge. An essential advantage of this variant is that the patches do not have to be torn out of the functional layer composite after application to the (value-document) substrate (ie a break must be made within the functional layers), but the functional layers at the patch edge are already clean by punching are severed. This leads to very clean patch edges.
2. b) Another alternative method for providing a shadow mask is based on the printing technique of creating a shadow mask, e.g. based on a relatively thick UV varnish.

Further preferred embodiments:

Functional layers:

For example, micromirrors, hologram structures, subwavelength structures or (eg embedded) microlenses can be incorporated in the functional layers. Microlenses can be present in particular in combination with microimages formed in a separate plane and in this way generate optically variable security features in the form of so-called moiré magnifiers, modulo mapper, tilt images and the like. On microlenses in combination with microimages based security features are for example from WO 2006/087138 A1 known.

Micromirrors, hologram structures, etc., are generally coated with an at least partially present metallization, which may consist of a metal, eg Al or Ag, a high-index coating, eg ZnS or TiO ₂ , or a color-shifting three-layer system reflector / dielectric / absorber (eg Al / SiO ₂ / Cr structure).

Heat seal coating:

Essential for the heat-sealing gel lacquer is that it ensures the desired adhesion at the end by the application by pressure and possibly elevated temperature. Due to the heat, it can melt and / or be activated. It may also be provided to subsequently heat seal the enamel, e.g. to be further treated by means of UV radiation (post-crosslinking).

Film thicknesses:

The perforated foil is preferably as thin as possible. It can be used with advantage thicknesses in a range of 4.5 microns to 19 microns. The film used is preferably a polyethylene terephthalate (PET) film.

The carrier films used are preferably thicker films, for example a 19 μm thick PET film. In the embodiments in which punched into the functional layers by punching, something is usually also punched into the carrier film. It must be ensured that the carrier film does not tear after application of the patch to the (value-document) substrate. According to an advantageous variant, not a single carrier foil is used as the carrier foil, but a laminating compound consisting of two foils, as is known from US Pat WO 2010/031543 A1 is known (eg, a 12 micron thick film and a 19 micron thick film that are glued together): then only one of the two films is punched during punching, while the second film remains undamaged.

A single punched foil tears easier than a laminated composite, since the "tear" of a film requires more force than the tearing.

Application of the transfer patch to the (value-document) substrate:

For a better transfer, it may be advantageous to pull the carrier film over a sharp edge (or a wedge) from the rest of the layer composite.

Other preferred parameters:

• The functional layers preferably contain embossing lacquers, which typically have a total thickness in a range from 2 μm to 7 μm. Depending on the type of structure, typical embossing depths may be in a range of e.g. 100 nm to 3.5 microns.
• The total thickness of the patch without carrier film is preferably below 50 μm, more preferably below 30 μm and particularly preferably below 20 μm.
• Typical patch dimensions are at a width of e.g. 5 mm to 25 mm and heights of e.g. 5 mm to 70 mm.
• - The patch shape can be chosen arbitrarily. Oval shapes are generally easier to apply than e.g. rectangular shapes. Under certain circumstances, a jagged edge can be advantageous. In particular, the variant of punching the functional layers (see above) also allows the application of patches with complex outline shapes, which are difficult to apply under normal conditions.

Further basic notes:

The embossed structure which can be used according to the invention is embossed, in particular, into an embossing lacquer. In the context of the present application, the term "optically variable effect" encompasses not only holograms but also hologram-like diffraction structures, that is, for example, structures that do not produce a defined image but rather a blurry colored impression. Also subsumed under the term "optically variable effect" are diffraction patterns, color shift effect structures, kinoforms, microlens effect structures, structures with isotropic or anisotropic scattering effects, or other interference effects, subwavelength structures, moth-eye structures, microlens structures, and microstructures for Moire Magnifier or Modulo Mapper , Micromirror structures and microprism structures.

• - einer reflektierenden Schicht (insbesondere einer metallischen, reflektierenden Schicht);
• - einer semitransparenten (Spiegel-)Schicht (die insbesondere von der Gruppe bestehend aus Al, Ag, Ni, Cr, Cu, Au und einer Legierung eines oder mehrerer der vorstehend genannten Elemente gewählt ist); und
• - einer zwischen der reflektierenden Schicht und der semitransparenten (Spiegel-)Schicht angeordneten dielektrischen Schicht,

wobei sich die Farbe des mehrschichtigen Aufbaus mit der Änderung des Betrachtungswinkels ändert.Preferred reflective embossed structures contain, for example, an interference-capable, multi-layered structure

• a reflective layer (in particular a metallic, reflective layer);
• a semitransparent (mirror) layer (selected in particular from the group consisting of Al, Ag, Ni, Cr, Cu, Au and an alloy of one or more of the aforementioned elements); and
• a dielectric layer disposed between the reflective layer and the semitransparent (mirror) layer,

wherein the color of the multi-layered structure changes with the change of the viewing angle.

It is possible to produce a first appearance of the interference-capable, multi-layered structure that can be seen when viewing the front side in reflected light and a second appearance of the interference-capable, multilayered structure that can be seen when viewed from the front side in transmitted light, for example by recesses in the reflective layer and / or the semitransparent Layer. Such a film security element with different incident light / transmitted light appearance is from the WO 2009/149831 A2 known. For example, the semitransparent layer may have a plurality of grid-like recesses, which in their entirety result in a character, an image or a pattern. The pattern produced in this way is visible in reflected light and disappears in transmitted light. Alternatively and / or additionally, a different incident light / transmitted light appearance of the multilayer structure can be achieved by combining the structure with a relief structure, in particular a diffractive relief structure, a microoptical relief structure or a sublambda structure.

• - die beiden semitransparenten Spiegelschichten werden bevorzugt von Al oder Ag gewählt; die dielektrische Schicht ist insbesondere eine SiO₂-Schicht;
• - im Falle, dass jede der beiden semitransparenten Spiegelschichten auf Al beruht, liegt die jeweilige bevorzugte Schichtdicke in einem Bereich von 5 nm bis 20 nm, insbesondere bevorzugt in einem Bereich von 10 nm bis 14 nm; die dielektrische SiO₂-Schicht hat vorzugsweise eine Schichtdicke in einem Bereich von 50 nm bis 450 nm, weiter bevorzugt in einem Bereich von 80 nm bis 260 nm, wobei die Bereiche von 80nm bis 100nm und von 220nm bis 240nm speziell für die Bereitstellung eines Gold/Blau-Farbwechsels besonders bevorzugt werden;
• - im Falle, dass jede der beiden semitransparenten Spiegelschichten auf Ag beruht, liegt die jeweilige bevorzugte Schichtdicke in einem Bereich von 15 nm bis 25 nm; die dielektrische SiO₂-Schicht hat vorzugsweise eine Schichtdicke in einem Bereich von 50 nm bis 450 nm, weiter bevorzugt in einem Bereich von 80 nm bis 260 nm, wobei die Bereiche von 80nm bis 100nm und von 220nm bis 240nm speziell für die Bereitstellung eines Gold/Blau-Farbwechsels besonders bevorzugt werden.

Further preferred reflective embossed structures contain, for example, a multilayer structure with two semitransparent layers and a dielectric layer arranged between the two semitransparent layers, the multilayer structure having different hues when viewed in incident light on the one hand and when viewed in transmitted light, in particular when viewed in the incident appears golden and when viewed in transmitted light shows a blue hue. The two different shades are in particular complementary colors. Such a multilayer structure is based in particular on two semitransparent mirror layers and a dielectric layer arranged between the two semitransparent mirror layers. Such a multi-layered structure, which appears golden when viewed in reflected light and shows a blue hue when viewed in transmitted light, is for example from the WO 2011/082761 A1 known. Particularly suitable as a semitransparent mirror layer is a metal selected from the group consisting of Al, Ag, Ni, Cr, Cu, Au and an alloy of one or more of the aforementioned elements, Al or Ag being preferred as the semitransparent mirror layer, and Al is particularly preferred. Suitable multilayer structures having two semitransparent mirror layers and a dielectric layer arranged between the two semitransparent mirror layers preferably have the following physical properties:

• the two semitransparent mirror layers are preferably selected from Al or Ag; the dielectric layer is in particular an SiO ₂ layer;
• in the case where each of the two semitransparent mirror layers is based on Al, the respective preferred layer thickness is in a range of 5 nm to 20 nm, particularly preferably in a range of 10 nm to 14 nm; the dielectric SiO ₂ layer preferably has a layer thickness in a range of 50 nm to 450 nm, more preferably in a range of 80 nm to 260 nm, with the ranges of 80 nm to 100 nm and 220 nm to 240 nm being especially suitable for providing a gold / Blue color change are particularly preferred;
• in the case where each of the two semitransparent mirror layers is based on Ag, the respective preferred layer thickness is in a range of 15 nm to 25 nm; the dielectric SiO ₂ layer preferably has a layer thickness in a range of 50 nm to 450 nm, more preferably in a range of 80 nm to 260 nm, with the ranges of 80 nm to 100 nm and 220 nm to 240 nm being especially suitable for providing a gold / Blue color change are particularly preferred.

• - im Auflicht Magenta, im Durchlicht Blau-Grün;
• - im Auflicht Türkis, im Durchlicht Orange-Gelb;
• - im Auflicht Gold, im Durchlicht Blau-Violett;
• - im Auflicht Silber, im Durchlicht Violett.

The aforementioned multilayered layer structures not only enable the production of a semitransparent functional layer, which appears golden when viewed in reflected light and shows a blue hue when viewed in transmitted light, but depending on the choice of the layer thickness, in particular of the dielectric layer further color changes can be generated, eg

• Magenta in transmitted light, blue-green in transmitted light;
• - in incident light turquoise, in transmitted light orange-yellow;
• - in reflected light gold, in transmitted light blue-violet;
• - in reflected light silver, in transmitted light violet.

Other preferred reflective embossing structures include e.g. a liquid crystal layer which shows a different color when viewed in reflected light as when viewed in transmitted light. Alternatively and / or additionally, a different reflected-light / transmitted-light appearance can be achieved by combining the liquid-crystal layer with a relief structure, in particular a diffractive relief structure, a micro-optical relief structure or a sublambda structure.

Other preferred reflective embossed structures include, for example, a printing layer having an effect pigment composition which, when viewed in reflected light, exhibits a different color than when viewed in transmitted light, in particular a gold / blue color change, a gold / violet color change, a green-gold / Magenta color change, violet / green color change, or silver / opaque color change. Such inks are eg in the WO 2011/064162 A2 described. Alternatively and / or additionally, a different reflected-light / transmitted-light appearance can be achieved by combining the printed layer with a relief structure, in particular a diffractive relief structure, a microoptical relief structure or a sublambda structure.

The relief structure forming a diffractive structure is in particular a hologram structure. The dimensions of the structural elements of the diffractive structure are preferably on the order of the wavelength of light, more preferably in a range greater than 100 nm and less than 1 μm, with a range greater than 300 nm and less than 1 μm being particularly preferred.

The relief structure forming a micromirror arrangement is also referred to herein as a micro-optical relief structure. The production of a micro-optical relief structure is known in the art (see, for example, the WO 2014/060089 A2 ). The dimensions of the structural elements of the micromirror arrangement are preferably in a range that is greater than μm and less than 40 μm, with a range greater than 1 μm and less than 30 μm being particularly preferred. The dimensions of the structural elements of the micromirror arrangement have, for example, a height of up to 15 μm and a lateral extent of up to 30 μm. In this case, both the height and the lateral extent of the structural elements of the micromirror arrangement are preferably greater than 1 μm.

Further preferred micro-optical relief structures are, for example, from WO 2007/079857 A1 known. Here, the reflective microstructure has the shape of a mosaic of a plurality of reflective mosaic elements, which are characterized by the parameters size, outline shape, relief shape, reflectivity and spatial orientation and which form a predetermined motive by different Groups of mosaic elements with different characteristic parameters reflect incident light into different spatial areas, and in which the mosaic elements have a lateral dimension below the resolution limit of the eye.

Further embodiments and advantages of the invention are explained below with reference to the schematically greatly simplified figures, in the representation of a scale and proportionate reproduction has been omitted in order to increase the clarity.

• 1 und 2 die Herstellung eines erfindungsgemäßen Transfermaterials gemäß einem ersten Ausführungsbeispiel;
• 3 und 4 die Applikation eines Transfer-Patches auf ein Wertdokumentsubstrat;
• 5 bis 8 die Herstellung eines erfindungsgemäßen Transfermaterials gemäß einem zweiten Ausführungsbeispiel;
• 9 und 10 die Applikation eines Transfer-Patches auf ein Wertdokumentsubstrat.

Show it:

• 1 and 2 the production of a transfer material according to the invention according to a first embodiment;
• 3 and 4 applying a transfer patch to a value document substrate;
• 5 to 8th the production of a transfer material according to the invention according to a second embodiment;
• 9 and 10 the application of a transfer patch to a value document substrate.

1 and 2 illustrate the preparation of a transfer material according to the invention according to a first embodiment.

According to the 1 First, a transfer ribbon construction is provided. The transfer film structure is based on a carrier film 1 , one or more functional layers located thereon 2 and a heat sealing lacquer layer 3. The functional layers 2 provide optically variable security features, eg, embossed holograms, micromirror elements, subwavelength structures, and the like. The optically variable security features are generally given by an embossing lacquer, for example a UV embossing lacquer, with microstructures embossed therein and metallization present at least in some areas. The functional layers 2 have only a weak adhesion to the carrier film 1 on, for example, by a poor adhesion of the embossing lacquer to the carrier film 1 or by the introduction of a special separation layer can be achieved.

According to the 2 will be on the in the 1 shown transfer film structure a shadow mask 4 applied. The shadow mask 4 may be given in particular by a perforated foil from which the shapes of the desired patches are punched out. Such a perforated foil 4 is advantageously laminated onto the transfer film structure. This can be done with an additional laminating adhesive (in the 2 not shown) or simply by using the adhesive power of the already existing heat sealing lacquer 3 , Advantageously, the heat sealing lacquer 3 facing side before be provided with a primer, a better bonding of perforated film 4 and functional layers 2 allows. perforated foil 4 and functional layers 2 can also be glued only partially.

3 and 4 illustrate the application of a transfer patch according to the first embodiment on a value document substrate, in the present example, a security paper for the production of banknotes.

In the application, the patch is heated as usual, with the heat sealing varnish 3 melts and with the paper substrate 5 glued (see 3 ). The heating can be carried out in regions (ie in an area which is slightly larger than the patch itself) or over the entire area.

Like in the 4 is shown, then separates the film structure 6 from the paper substrate 5 , Thus, the functional layers remain 2 in the patch area on the paper substrate 5 because of the heat sealing lacquer 3 to the paper 5 for a stronger adhesion than the adhesion between carrier film 1 and functional layers 2 , The functional layers remain in the area outside the patch 2 on the carrier foil 1 ,

1. i) die Verhinderung des Verklebens von Funktionsschichten 2 und Papiersubstrat 5; und
2. ii) die Stabilisierung des Schichtverbunds zur Verhinderung des Aufreißens der Funktionsschicht 2 in Bereichen außerhalb des Patches.

The masking foil 4 fulfills two tasks:

1. i) the prevention of sticking of functional layers 2 and paper substrate 5 ; and
2. ii) the stabilization of the layer composite to prevent the tearing of the functional layer 2 in areas outside the patch.

5 to 8th illustrate the preparation of a transfer material according to the invention according to a second embodiment.

According to the 5 First, a transfer ribbon construction is provided. The transfer film structure is based on a carrier film 7 , one or more functional layers located thereon 8th and a heat sealing lacquer layer 9. The functional layers 8th provide optically variable security features, eg, embossed holograms, micromirror elements, subwavelength structures, and the like. The optically variable security features are generally provided by an embossing lacquer, for example a UV embossing lacquer, with microstructures embossed therein and metallization present at least in some areas. The functional layers 8 have only a weak adhesion to the carrier film 7 on, for example, by a poor adhesion of the embossing lacquer to the carrier film 7 or by the introduction of a special separation layer can be achieved.

According to the 6 will be in the 5 shown transfer composite in the areas outside of the later patch with a laminating adhesive 10 provided (the laminating adhesive 10 is not mandatory, however; Alternatively, the already existing heat sealing lacquer 9 partially melted or activated) and then with a film 11 bonded. Due to the positioning tolerances of bonding and punching cut, it is advantageous to let the bond end with sufficient distance from the patch.

According to the 7 then the patch shapes are punched out (the solid lines 12 illustrate the punching tool) and remove the film 11 in the areas of the holes, for example by means of compressed air or by pulling over a sharp edge.

A significant advantage of this variant is that after application to the value document substrate, the patches do not have to be torn out of the functional layer composite (ie a break must occur within the functional layers), but the functional layers at the patch edge are already severed cleanly by punching (see the in the 8th dashed lines shown 13 ). This leads to very clean patch edges.

9 and 10 illustrate the application of the transfer patch according to the second embodiment of a value document substrate, in the present example, a security paper for the production of banknotes.

In the application, the patch is heated as usual, with the heat sealing varnish 9 melts and with the paper substrate 14 glued (see 9 ). The heating can be carried out in regions (ie in an area which is slightly larger than the patch itself) or over the entire area.

Like in the 10 is shown, then separates the film structure 15 from the paper substrate 14 , Thus, the functional layers remain 8th in the patch area on the paper substrate 14 because of the heat sealing lacquer 9 to the paper 14 for a stronger adhesion than the adhesion between carrier film 7 and functional layers 8th , The functional layers remain in the area outside the patch 8th on the carrier foil 7 ,

QUOTES INCLUDE IN THE DESCRIPTION

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

Cited patent literature

• EP 0420261 B1 [0002]
• WO 2005/108108 A2 [0002]
• WO 2010/031543 A1 [0006, 0007, 0028]
• WO 2006/087138 A1 [0024]
• WO 2009/149831 A2 [0033]
• WO 2011/082761 A1 [0034]
• WO 2011/064162 A2 [0037]
• WO 2014/060089 A2 [0039]
• WO 2007/079857 A1 [0040]

Claims (10)

Security element transfer material comprising a security element laminate comprising a plurality of layers, including at least one optically variable effect deploying feature layer and an adhesive layer, the feature layer being the layer facing a viewer after transfer of a security element to a value document substrate; a carrier substrate detachably connected to the feature layer of the security element laminate; a mask layer having at least one recess, which is designed such that the security element layer composite can be bonded to the value document substrate in the region of the at least one recess of the mask layer by the action of pressure and optionally heat by means of the adhesive layer and then detached from the carrier substrate, wherein Outside the at least one recess of the mask layer, adhesion of the security element layer composite to the value document substrate and subsequent detachment of the security element layer composite from the carrier substrate is prevented. Security element transfer material according to Claim 1 wherein the mask layer is formed by a foil. Security element transfer material according to Claim 1 or 2 wherein the feature layer exhibiting an optically variable effect is based on a reflective embossing pattern. Security element transfer material according to Claim 3 wherein the reflective embossing structure is made up of: (a) a reflective diffractive structure; or (b) a mosaic reflective mosaic of a plurality of reflective mosaic elements characterized by size, outline, relief, reflectivity, and spatial orientation and which constitute a predetermined motive in that different sets of mosaic elements having different characteristic parameters reflect incident light into different spatial areas, and in which the mosaic elements have a lateral dimension below the resolution limit of the eye. Security element transfer material according to Claim 3 or 4 in which the reflective embossed structure (i) has opaque metal layers as reflective layers, or (ii) transparent, high refractive layers as reflective layers, or (iii) as reflective layers thin-film elements with color-shift effect, in particular with a reflective layer and a semitransparent layer and a dielectric layer arranged therebetween Or (iv) has reflective layers as layers of liquid-crystalline material, in particular of cholesteric liquid-crystalline material, or (v) as reflective layers printed layers based on effect pigment compositions with viewing angle-dependent effect or with different colors in incident light observation and transmitted light observation or (vi) as reflective layers, having the following multilayer structure: two semitransparent layers and a dielectric layer disposed between the two semitransparent layers, w obei the multi-layered structure when viewed in incident light on the one hand and when viewed in transmitted light on the other hand has different shades. A method of manufacturing a security element transfer material according to any one of Claims 1 to 5 comprising: a) providing a carrier substrate; b) providing the carrier substrate with a security element laminate having a plurality of layers, including at least one a feature layer exhibiting an optically variable effect and an adhesive layer, the feature layer being the layer facing a viewer after transfer of a security element to a value document substrate, the carrier substrate being detachably connected to the feature layer of the security element laminate; c) the separate provision of a mask layer having at least one recess; d) the bonding of the mask layer with the security element layer composite obtained in step b), so that a security element transfer material is obtained in which the security element layer composite in the region of the at least one recess of the mask layer by the action of pressure and optionally heat by means of the adhesive layer glued to the security element layer composite with the value document substrate and a subsequent detachment of the security element layer composite from the carrier substrate is prevented in the area outside the at least one recess of the mask layer. A method of manufacturing a security element transfer material according to any one of Claims 1 to 5 comprising: a) providing a carrier substrate; b) providing the carrier substrate with a security element laminate having a plurality of layers including at least one optically variable effect deploying feature layer and an adhesive layer, the feature layer being the layer that after transferring a security element to a value document substrate Viewers is facing, wherein the carrier substrate is detachably connected to the feature layer of the security element layer composite; c) the application of a suitable for generating a mask layer having at least one recess layer on the security element layer composite obtained in step b), wherein the film is glued only in the area outside the at least one recess to be generated with the security element layer composite and in the area the at least one recess to be produced is not adhesively bonded to the security element layer composite; d) generating at least one recess in the film obtained in step c) so as to produce a mask layer, so that a security element transfer material is obtained in which the security element layer composite in the region of the at least one recess of the mask layer by the action of Pressure and optionally heat can be glued by means of the adhesive layer with a value document substrate and then detached from the carrier substrate, wherein in the area outside the at least one recess of the mask layer, bonding of the security element layer composite with the value document substrate and a subsequent detachment of the security element layer composite is prevented from the carrier substrate , Method according to Claim 7 , wherein in step d) generating at least one recess in the film obtained in step c) takes place by means of punching and the punched out film material is removed. Method according to Claim 8 In the step of punching not only the foil to be transferred into a mask layer is provided with punched lines, but also the security element layer composite to be transferred is provided with punched lines. A method of manufacturing a security element transfer material according to any one of Claims 1 to 5 comprising: a) providing a carrier substrate; b) providing the carrier substrate with a security element laminate having a plurality of layers including at least one optically variable effect deploying feature layer and an adhesive layer, the feature layer being the layer that after transferring a security element to a value document substrate Viewers is facing, wherein the carrier substrate is detachably connected to the feature layer of the security element layer composite; c) providing the security element layer composite obtained in step b) with a mask layer having at least one recess, wherein the mask layer is produced by means of a lacquer, so that a security element transfer material is obtained in which the security element laminate in the region of at least one Recess of the mask layer can be bonded by the action of pressure and optionally heat by means of the adhesive layer with a value document substrate and then detached from the carrier substrate, wherein in the area outside of the at least one recess of the mask layer, bonding the security element layer composite with the value document substrate and a subsequent detachment of the security element Layer composite is prevented from the carrier substrate.

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