DE102022000409A1 - Security element transfer material and method of making same - Google Patents

Abstract

The disclosure relates to a method for producing a security element transfer material (10) for objects of value, in particular documents of value, which comprises the following steps: providing a carrier film (16); applying a release layer (22) to the carrier film (16); partial surface application of one or more superimposed layers to produce a functional layer structure (70) having an optically variable effect in such a way that its outer contour (71) lies completely on the release layer (22); and applying an adhesive layer (50) to the functional layer structure (70) in such a way that it either covers the functional layer structure (70) exactly or projects a little beyond the outer contour (71) of the functional layer structure (70) until it reaches the release layer (22). The disclosure also relates to a corresponding security element transfer material (10) as such and a method for producing an object of value (10) using the security element transfer material (10).

Description

The invention relates to a security element transfer material, a method for producing the security element transfer material and a method for producing an object of value, in particular a document of value, using the security element transfer material.

Valuables, such as branded items or documents of value, in particular banknotes, are often equipped with security elements that allow the authenticity of the valuables to be checked and at the same time serve as protection against unauthorized reproduction. Security elements that have an optically variable effect are often encountered. So-called tilting effects, in which an optical appearance changes depending on the viewing angle, are particularly popular. Tilting effects can be B. produce by metallized prehistories. Examples of this are diffractive embossed structures with dimensions in the order of magnitude of visible light, so-called embossed holograms, or embossed structures with larger dimensions in the form of micromirrors.

In the production of the multi-layer security element, a corresponding functional layer structure can first be built up on a carrier film and later transferred from there to the object of value. One also speaks of transfer elements, e.g. B. in the form of patches that can be applied, labels, strips or threads that can be embedded in a security paper. Usually the top layer of the security element is an adhesive layer, e.g. B. a heat-seal lacquer layer, by means of which the security element is glued to the object of value.

In some configurations it is advantageous if the security element retains the carrier film after transfer to the object of value, which then forms an integral part of the security element. In other designs, on the other hand, it is desirable to detach the carrier film from the security element after the transfer. Compared to the integrated carrier film, this carrier film thus forms only a temporary component of the security element, which is very thin after detachment. In this way, a stacking problem with valuables can be avoided. In this respect, it is problematic to detach the security element from the carrier film reliably and with precise contours.

A security element in the form of a transfer element and a method for producing the same are known from the publication DE 10 2016 009 318 A1 known. The security element comprises a carrier film, a release layer that is applied over the entire surface of the carrier film, a functional layer structure that is applied over the entire surface of the release layer, a grid-like stabilization layer that is partially applied to the functional layer structure, and a heat-seal lacquer layer that is applied to the functional layer structure and the grid-like stabilization layer is applied over the entire surface. To complete the security element, the grid-like stabilization layer, including the heat-sealing lacquer layer, the functional layer structure and the release layer, is punched out as the area on the carrier film that is not to be transferred and then "weeded" in such a way that the remaining part forms the security element or the area to be transferred. Weeding is made possible by the tough grid-like stabilization layer, which gives the material of the non-transmission area the necessary stability. The remaining transfer area, which forms the security element, is then glued to a banknote substrate by means of the heat-seal lacquer layer, and finally the carrier film is detached from the security element.

The procedure according to the publication DE 10 2016 009 318 A1 is complicated. Before the security element is transferred to the banknote substrate, the process requires the stamping operation and weeding to separate the non-transfer area from the transfer area.

The invention is based on the object of specifying a method for producing a security element transfer material in a simple manner and of providing a corresponding security element transfer material.

This object is achieved by a method for producing a security element transfer material and a corresponding security element transfer material having the features of the independent claims. Developments of the disclosure are the subject matter of the dependent claims.

A first aspect of the present disclosure relates to a method for producing a security element transfer material, in which a carrier film is provided, a release layer is applied to the carrier film, one or more superimposed layers to produce a functional layer structure having an optically variable effect are applied over part of the surface, such that the functional layer structure lies completely with an outer contour on the release layer, and an adhesive layer is applied to the functional layer structure in such a way that it either exactly covers the functional layer structure or protrudes a little beyond the outer contour of the functional layer structure until it reaches the release layer.

In principle, the carrier film serves to support the security element transfer material during manufacture and, after the security element transfer material has been transferred to a substrate of an object of value, e.g. B. a value document substrate to be detached from the security element transfer material. The carrier film can, for. B. be a PET film. For the mass production of security element transfer materials, the carrier film is available as roll goods in endless form or as a multi-use sheet, on which a number of security elements are built up side by side.

The release layer adheres only weakly to the carrier film, so that later detachment of the carrier film from the security element transfer material is made possible. The release layer is, for example, a UV lacquer layer, a wax layer or a release lacquer layer. The release layer is applied to the carrier film either over the entire surface or preferably only over part of the surface. When applying the release layer over part of the area, a motif shape of the release layer can be freely selected and preferably corresponds to a motif shape of the functional layer structure applied above it. The release layer is preferably transparent.

The functional layer structure offers the optically variable effect, e.g. B. a tilting effect, a security function of the security element transfer material. The functional layer structure is applied over part of the surface in such a way that its outer contour lies completely on the release layer. However, the functional layer structure as a whole does not have to lie completely on the release layer. For example, the functional layer structure can lie partly on the release layer and partly on the carrier film. It is important that its outer contour lies completely on the release layer. A motif form of the part-area functional layer structure can also be freely selected. The motif shapes of the release layer and the functional layer structure are preferably similar, preferably identical, except that the release layer protrudes laterally beyond the functional layer structure, ie has a larger outer contour.

The adhesive layer ensures the desired adhesion of the functional layer structure to the substrate of the object of value, in particular a value document substrate, and has stronger adhesion to the substrate than the adhesion between the carrier film and the release layer and, insofar as the functional layer structure is not completely on the release layer, than adhesion between the carrier film and the functional layer structure. The adhesive layer is applied to the functional layer structure in such a way that it either covers the functional layer structure exactly or protrudes a little beyond the outer contour of the functional layer structure until it reaches the release layer. "A little way" means that the adhesive layer does not reach a limit of the release layer and only protrudes slightly beyond the functional layer structure, preferably as slightly as possible in terms of production technology. After all, it is ultimately the adhesive layer that defines the contour of the security element transferred from the carrier film to the object of value. An overhang of the adhesive layer should therefore be less than 2 mm, preferably less than 1 mm, particularly preferably less than 0.5 mm. The adhesive layer is z. B. a heat-sealing lacquer layer that melts under the influence of pressure and elevated temperature. The adhesive layer can be transparent and applied to a transparent window in the substrate of the valuable, so that the optically variable effect can also be seen from the opposite side of the valuable.

A core of the present method lies in the fact that the contour of the adhesive layer applied over part of the area essentially defines the region of the security element transfer material to be transferred and thus the contour of the security element. During the subsequent transfer, only the security element is bonded to the substrate of the object of value by means of the adhesive layer, while any area of the security element transfer material that is not to be transferred cannot bond to the substrate due to the lack of the adhesive layer. The present method for producing the security element transfer material with the carrier film which can be detached from it does not require a grid-like stabilizing layer, a stamping operation or weeding. Thus, manufacturing is easy.

Before the adhesive layer is applied, a primer can be applied to the functional layer structure in such a way that it either covers the functional layer structure exactly or protrudes a little beyond the outer contour of the functional layer structure until it reaches the release layer. The adhesive layer is then applied to the primer. The primer serves to improve the bond between the functional layer structure and the adhesive layer.

In one embodiment, as already mentioned, the release layer is only applied to part of the surface of the carrier film, such that the outer contour of the release layer protrudes all around over the outer contour of the functional layer structure. The protruding part of the release layer effectively prevents adhesion between the adhesive layer and the carrier film. Such a bond is undesirable because it later detachment sen the carrier film from the security element transfer material and can lead to the breakage of the security element.

In the case of a release layer applied only over part of the area, the functional layer structure is produced in such a way that it either lies completely on the release layer over part of the area or protrudes beyond an inner contour of the release layer over part of the area. In the first variant, the functional layer structure lies completely between the adhesive layer and the release layer, while in the second variant it is completely covered on one side by the adhesive layer and on the other side partially by the release layer and partially by the carrier film. In comparison to the first variant, the security element transfer material according to the second variant can be produced even thinner. In particular, an observer looks at the security element applied to the object of value directly at the functional layer structure and not through the release layer, so that the optically variable effect is particularly effective.

If the functional layer structure lies completely on the release layer, the release layer is preferably transparent or at least translucent in order not to impede the optically variable effect of the functional layer structure. This is because the release layer is the uppermost layer of the security element that is ultimately applied to the object of value and through which an observer can see. The release layer can also have other security features, e.g. B. interference layer pigments, liquid crystal pigments or fluorescent substances. If, however, the functional layer structure lies only with its outer contour on the release layer, the release layer can also be opaque and form a kind of framework for the optically variable effect of the functional layer structure.

In one embodiment, in the step of producing the functional layer structure, an embossing layer is applied, into which a motif is embossed. The embossing layer can be, for example, a UV embossing lacquer layer which is applied in such a way, e.g. B. printed, that it is completely with its outer contour on the release layer.

A metallization layer is then applied to the embossed motif in order to create a metallized embossed layer as a functional layer structure. The structures of the embossing layer can be so small that they act diffractively and produce a holographic effect, or they can be larger and form micromirrors with the metallization layer. The metallized embossing layer thus exhibits a tilting effect in which an optical appearance changes depending on the viewing angle.

Before the metallization layer is applied, an ink wash layer can be applied to the embossing layer in such a way that the ink wash layer only partially covers the embossing layer. After the metallization layer has been applied, the wash color layer with the overlying metallization layer is removed by washing so that the metallization layer forms at least one pattern or character, e.g. B. as negative writing (clear text). Alternatively, the metallization layer may be partially demetallized by etching or laser instead of by the wash-color layer. The demetallized areas of the metallization layer also produce a see-through effect, which allows the pattern or character to be recognized particularly clearly when viewed in transmitted light.

In order to ensure that the security element has contours that are as sharp as possible when the carrier film is later detached from the security element transfer material, a closed or interrupted punching line can be provided through the adhesive layer and the release layer. B. is generated by means of a mechanical punching tool or laser on the carrier film. The punching line is not essential for detaching the carrier film from the security element transfer material, because the contour is essentially predetermined by the contour of the adhesive layer. However, the die-cut line ensures a clean and sharp detachment edge.

A second aspect of the present disclosure relates to a corresponding security element transfer material as such. The security element transfer material comprises a carrier foil, a release layer which is applied to the carrier foil, a functional layer structure which comprises one or more superimposed layers and has an optically variable effect and which lies completely on the release layer with an outer contour, and an adhesive layer which is applied in register to the functional layer structure in such a way that it protrudes a little beyond the outer contour of the functional layer structure until it reaches the release layer.

A third aspect of the present disclosure relates to a method for producing an object of value, in which the security element transfer material is produced according to either the first aspect of the present disclosure or the second aspect of the present disclosure is provided, a substrate of an object of value, e.g. B. a value document substrate is provided, the security element transfer material is bonded to the substrate by means of the adhesive layer of the security element transfer material, and the carrier film is detached from the security element transfer material, so that the safe security element remains on the valuable. The security element allows the authenticity of the valuable to be checked and at the same time serves as protection against unauthorized reproduction.

The substrate of the valuable is z. B. a paper substrate, polymer substrate, or composite substrate for the production of documents of value such as banknotes, ID cards, shares, certificates, stamps, checks, tickets, tickets or airline tickets.

If the adhesive layer comprises a heat-seal lacquer layer, heating takes place either over the entire surface of the security element transfer material or only in the area where the heat-seal lacquer layer is located. In order to cure the adhesive layer, the adhesive layer is preferably activated by means of UV radiation.

• 1 schematisch eine Banknote 1 mit einem Sicherheitselement 12,
• 2 eine Aufsicht auf ein Sicherheitselement-Transfermaterial 10 umfassend eine endlose Trägerfolie 16, auf der eine Mehrzahl von Sicherheitselementen 12 aufgebracht ist,
• 3 schematisch ein erstes Ausführungsbeispiel des Sicherheitselement-Transfermaterials 10 im Querschnitt,
• 4 schematisch ein zweites Ausführungsbeispiel des Sicherheitselement-Transfermaterials 10 im Querschnitt,
• 5 schematisch ein drittes Ausführungsbeispiel des Sicherheitselement-Transfermaterials 10 im Querschnitt,
• 6 schematisch ein viertes Ausführungsbeispiel des Sicherheitselement-Transfermaterials 10 im Querschnitt,
• 7 schematisch das Sicherheitselement-Transfermaterial 10 aus 6 auf einem Banknotensubstrat 14 im Querschnitt,
• 8 die Anordnung aus 7 mit vom Sicherheitselement 12 abgelöster Trägerfolie 16 im Querschnitt,
• 9 schematisch ein fünftes Ausführungsbeispiel des Sicherheitselement-Transfermaterials 10 im Querschnitt, und
• 10A bis 10F schematisch einzelne Verfahrensstadien beim Herstellen und Applizieren eines sechsten Ausführungsbeispiels des Sicherheitselement-Transfermaterials 10 im Querschnitt.

Further exemplary embodiments and advantages are explained below with reference to the diagrammatically greatly simplified figures, in the representation of which a reproduction true to scale and proportion is dispensed with in order to increase clarity. Show in it:

• 1 schematically a banknote 1 with a security element 12,
• 2 a top view of a security element transfer material 10 comprising an endless carrier film 16 on which a plurality of security elements 12 is applied,
• 3 schematically a first embodiment of the security element transfer material 10 in cross section,
• 4 schematically a second embodiment of the security element transfer material 10 in cross section,
• 5 schematically a third embodiment of the security element transfer material 10 in cross section,
• 6 schematically a fourth embodiment of the security element transfer material 10 in cross section,
• 7 schematically the security element transfer material 10 from 6 on a banknote substrate 14 in cross section,
• 8th the arrangement 7 with the carrier film 16 detached from the security element 12 in cross section,
• 9 schematically a fifth embodiment of the security element transfer material 10 in cross section, and
• 10A until 10F schematically individual process stages in the production and application of a sixth exemplary embodiment of the security element transfer material 10 in cross section.

1 shows a schematic representation of a banknote 1 with a security element 12. The banknote 1 comprises a banknote substrate 14, on which the security element 12 is applied. The banknote substrate 14 is z. B. a paper substrate, polymeric substrate or composite substrate. The motif shape of the security element 12 can be different than the illustrated star. The security element 12 allows the authenticity of the banknote 1 to be checked and at the same time serves as protection against unauthorized reproduction.

2 shows a plan view of a security element transfer material 10 comprising an endless carrier film 16, z. B. an endless PET film as rolled goods, on which a plurality of security elements 12 is applied. Deviating from 2 it is also possible for only a single security element 12 to be provided on a carrier film 16, or the carrier film 16 is present as a multiple-use sheet.

3 shows a first embodiment of the security element transfer material 10 in cross section. The security element transfer material 10 comprises a carrier film 16, a transparent release layer 22 which is applied over the entire surface of the carrier film 16, a functional layer structure 70 which is only partially applied to the release layer 22, an optional primer 60 which is applied to the functional layer structure 70 in such a way is that it ends with an outer contour 71 of the functional layer structure 70 or, as here, at most protrudes a little beyond the outer contour 71 of the functional layer structure 70 until it reaches the release layer 22, and a heat-sealing lacquer layer 50 which is applied in this way to the optional primer 60 that it terminates with the outer contour 71 of the functional layer structure 70 or at most protrudes a little beyond the outer contour 71 of the functional layer structure 70 until it reaches the release layer 22 . For example, an overhang of the heat-sealing lacquer layer 50 can be less than 2 mm, preferably less than 1 mm, particularly preferably less than 0.5 mm.

4 12 shows a second exemplary embodiment of the security element transfer material 10 in cross section. The security element transfer material 10 according to 4 differs from the security element transfer material 10 according to FIG 3 in that the release layer 22 is applied to the carrier film 16 only over part of the area. The release layer 22 has an outer contour 33 which protrudes all around beyond the outer contour 71 of the functional layer structure 70 . The motifs defined by the outer contours 33 and 71 are preferably Similar to the release layer 22 and the functional layer structure 70, preferably identical, except that the release layer 22 has a larger outer contour 33 than the functional layer structure 70.

5 12 shows a third exemplary embodiment of the security element transfer material 10 in cross section. The security element transfer material 10 according to 5 differs from the security element transfer material 10 according to FIG 4 in that the release layer 22 also includes an inner contour 34 in addition to the outer contour 33 . The release layer 22 can also only include the inner contour 34 and otherwise, as in 3 , are present over the entire surface (not shown). The functional layer structure 70 is applied over part of the surface of the release layer 22 in such a way that the functional layer structure 70 protrudes beyond the inner contour 34 of the release layer 42 . The shape of the motif defined by the inner contour 34 of the release layer 22 preferably corresponds to the shape of the motif defined by the outer contour 33 of the release layer 22 , so that the release layer 22 forms a frame with a constant width for the functional layer structure 70 . The security element transfer material 10 according to 5 is thinner than the security element transfer materials 10 according to FIG 3 and 4 .

6 12 shows a fourth exemplary embodiment of the security element transfer material 10 in cross section. The security element transfer material 10 according to 6 differs from the security element transfer material 10 according to FIG 5 only through a punched line 55. The punched line 55 runs either closed or interrupted around the functional layer structure 70. For this purpose, the heat-sealing lacquer layer 50 and the release layer 22, e.g. B. by means of a mechanical punching tool or laser, punched through on the carrier film 16. The punching line 55 is not mandatory for the later detachment of the carrier film 16 from the security element 12 because the contour of the security element 12 is essentially predetermined by the contour of the heat-sealing lacquer layer 50 . The security element transfer materials 10 according to 3 and 4 can also include such a punched line 55 .

7 12 shows the security element transfer material 10. FIG 6 inverted on a banknote substrate 14 in cross section. The heat-sealing lacquer layer 50 melts as a result of pressure and increased temperature and then cools down again, so that the security element 12 sticks to the banknote substrate 14 . The heating takes place either over the entire surface of the entire security element transfer material 10 or only in the area where the heat-sealing lacquer layer 50 is located. In order to harden the heat-sealing lacquer layer 50, the heat-sealing lacquer layer 50 can be activated by means of UV radiation.

8th shows the arrangement 7 with the carrier film 16 detached from the security element 12 in cross section. Detachment is made possible by the fact that the adhesion between the banknote substrate 14 and the heat-seal lacquer layer 50 is stronger than the adhesion between the carrier film 16 and the functional layer structure 70 and than the adhesion between the carrier film 16 and the release layer 22. The punched line 55 ensures that that the security element 12 receives a clean and sharp outer contour.

In the exemplary embodiments described so far, the functional layer structure 70 is a single layer, e.g. B. a printing layer with interference layer pigments or liquid crystal pigments. 9 shows a fifth embodiment of the security element transfer material 10 in cross section. The security element transfer material 10 according to 9 differs from the security element transfer materials 10 described above in that the functional layer structure 70 is not a single layer but a multilayer structure. The functional layer structure 70 comprises an embossing layer 80, e.g. B. an embossing lacquer layer, with a thin metallization layer 85, which follows the embossed structures of the embossing layer 80. The embossing layer 80 is applied in such a way that it projects beyond the inner contour 34 of the release layer 22 without reaching the outer contour 33 of the release layer 22 . The metallization layer 85 is applied over the entire surface in such a way that it also covers the embossing layer 80 , the release layer 22 and the carrier film 16 . The dimensions of the embossed structures of the embossing layer 80 can be so small that they have a diffractive effect and produce a holographic effect, or they can be larger and form micromirrors with the metallization layer 85 . The functional layer structure 70 according to 9 thus exhibits a tilting effect in which an optical appearance changes depending on the viewing angle. Deviating from 9 the metallization layer 85 can only be applied locally. Also in the embodiments according to 3 until 6 Instead of a single-layer, a multi-layer functional layer structure 70 can be used, in particular according to FIG 9 , be provided.

10A until 10F show diagrammatically individual process stages in the production and application of a sixth exemplary embodiment of the security element transfer material 10 in cross section. First, a carrier film 16 is provided, to which a release layer 22 is applied partially or over the entire surface. In the illustrated embodiment, the release layer 22 also includes an outer contour 33 and a Inner contour 34 is therefore part of the surface. When producing the functional layer structure 70, an embossing layer 80 is first applied in such a way that it protrudes beyond the inner contour 34 of the release layer 22 only so far that the outer contour 33 of the release layer 22 protrudes all around over an outer contour 71 of the embossing layer 80. A motif is embossed into the embossed layer 80 and a washable color layer 82 is applied over part of the area to the embossed motif. A metallization layer 85 is then applied in such a way that it covers at least the embossing layer 80 and the washed ink layer 82 and, in this exemplary embodiment, also the release layer 22 and the carrier film 16 . After the metallization, the washed color layer 82 with the metallization layer 85 lying thereon is removed by washing, so that the remaining metallization layer 85 only partially covers the embossing layer 80 and forms at least one pattern or character, e.g. B. as negative writing (clear text). Alternatively, instead of using the washcoat layer 82, the metallization layer 85 may be partially demetallized by etching or laser. To complete the security element transfer material 10, an optional primer 60 and a heat-sealing lacquer layer 50 are applied to the functional layer structure 70 in the manner already described in connection with FIG 6 mentioned. The security element transfer material 10 produced in this way according to FIG 10D differs from the security element transfer material 10 according to FIG 9 only through the demetallized areas in the metallization layer 85. In den 10E and 10F is shown as the security element transfer material 10 according to FIG 10D first bonded to a banknote substrate 14 and finally the carrier film 16 is detached from the security element 12. The gluing step in 10E and the detachment operation in 10F are identical to the in 7 and 8th mentioned work steps.

QUOTES INCLUDED IN DESCRIPTION

This list of documents cited by the applicant was 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.

Patent Literature Cited

• DE 102016009318 A1 [0005, 0006]

Claims (15)

Method for producing a security element transfer material (10), comprising the steps: - Providing a carrier film (16); - Applying a release layer (22) to the carrier film (16); - partial surface application of one or more superimposed layers to produce an optically variable effect having a functional layer structure (70) such that it lies completely with an outer contour (71) on the release layer (22); and - Application of an adhesive layer (50) to the functional layer structure (70) in such a way that it either covers the functional layer structure (70) exactly or projects a little beyond the outer contour (71) of the functional layer structure (70) until it reaches the release layer (22). procedure after claim 1 , wherein the release layer (22) is only partially applied during the step of applying the release layer (22), such that an outer contour (33) of the release layer (22) protrudes all around over the outer contour (71) of the functional layer structure (70). procedure after claim 2 , wherein the step of applying the functional layer structure (70) takes place in such a way that it either lies completely on the partial release layer (22) or protrudes beyond an inner contour (34) of the partial release layer (22). Procedure according to one of Claims 1 until 3 , wherein the step of producing the functional layer structure (70) comprises applying an embossed layer (80) and embossing a motif in the embossed layer (80). procedure after claim 4 , wherein the step of producing the functional layer structure (70) comprises applying a metallization layer (85) to the embossed motif. procedure after claim 5 , comprising, before the application of the metallization layer (85), a step of applying an ink wash layer (82) to the embossing layer (80) such that the ink wash layer (82) only partially covers the embossing layer (80), and after the application of the metallization layer (85), a step of removing the wash color layer (82) with the overlying metallization layer (85), so that the metallization layer (85) forms at least one pattern or character. Procedure according to one of Claims 1 until 6 , comprising the step of: - punching through the adhesive layer (50) and the release layer (22) on the carrier film (16) in such a way that either a closed or an interrupted punching line (55) is formed. A security element transfer material (10) comprising - a carrier film (16); - A release layer (22) which is applied to the carrier film (16); - A functional layer structure (70) which comprises one or more layers lying one on top of the other and has an optically variable effect and which lies completely on the release layer (22) with an outer contour (71); and an adhesive layer (50) which is applied to the functional layer structure (70) in register in such a way that it protrudes a little beyond the outer contour (71) of the functional layer structure (70) until it reaches the release layer (22). security element transfer material claim 8 , the release layer (22) being applied to the carrier film (16) only over part of the area and an outer contour (33) of the part-area release layer (22) protruding all around over the outer contour (71) of the functional layer structure (70). security element transfer material claim 9 , wherein the functional layer structure (70) either lies completely on the partial release layer (22) or protrudes beyond an inner contour (34) of the partial release layer (22). Security element transfer material according to any one of Claims 8 until 10 , wherein the functional layer structure (70) comprises an embossed layer (80) in which a motif is embossed. security element transfer material claim 11 , wherein the functional layer structure (70) comprises a metallization layer (85) adjacent to the embossed motif. security element transfer material claim 12 , wherein the metallization layer (85) covers the embossing layer (80) only partially and forms at least one pattern or character. Security element transfer material according to any one of Claims 8 until 13 , wherein the adhesive layer (50) and the release layer (22) comprise either a closed or an interrupted die-cut line (55). Method for producing an object of value, for example a document of value (1), comprising the steps - Producing a security element transfer material (10) according to one of Claims 1 until 7 or providing a security element transfer material (10) according to any one of Claims 8 until 14 ; - providing a substrate (14) of the valuable; - Gluing the security element transfer material (10) to the substrate (14) by means of the adhesive layer (50) of the security element transfer material (10); and - detaching the carrier film (16) from the security element transfer material (10).

Images