EP3774375A1 - Security element, method for producing same, and data carrier equipped with the security element - Google Patents
Security element, method for producing same, and data carrier equipped with the security elementInfo
- Publication number
- EP3774375A1 EP3774375A1 EP19718247.0A EP19718247A EP3774375A1 EP 3774375 A1 EP3774375 A1 EP 3774375A1 EP 19718247 A EP19718247 A EP 19718247A EP 3774375 A1 EP3774375 A1 EP 3774375A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- areas
- layer
- security element
- metallic
- semitransparent
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000004519 manufacturing process Methods 0.000 title claims description 11
- 239000010410 layer Substances 0.000 claims abstract description 254
- 238000004049 embossing Methods 0.000 claims abstract description 79
- 239000004922 lacquer Substances 0.000 claims abstract description 79
- 239000012790 adhesive layer Substances 0.000 claims abstract description 34
- 239000000758 substrate Substances 0.000 claims description 41
- 238000001465 metallisation Methods 0.000 claims description 29
- 238000007740 vapor deposition Methods 0.000 claims description 26
- 238000007639 printing Methods 0.000 claims description 24
- 239000010409 thin film Substances 0.000 claims description 24
- 229910052737 gold Inorganic materials 0.000 claims description 21
- 239000000049 pigment Substances 0.000 claims description 20
- 239000010408 film Substances 0.000 claims description 19
- 238000005406 washing Methods 0.000 claims description 19
- 239000003973 paint Substances 0.000 claims description 16
- 229910052751 metal Inorganic materials 0.000 claims description 13
- 239000002184 metal Substances 0.000 claims description 13
- 229910052782 aluminium Inorganic materials 0.000 claims description 12
- 239000011247 coating layer Substances 0.000 claims description 9
- 229910052802 copper Inorganic materials 0.000 claims description 9
- 230000000694 effects Effects 0.000 claims description 9
- 229910052804 chromium Inorganic materials 0.000 claims description 8
- 238000000034 method Methods 0.000 claims description 8
- 125000006850 spacer group Chemical group 0.000 claims description 8
- 239000002131 composite material Substances 0.000 claims description 7
- 239000011241 protective layer Substances 0.000 claims description 5
- 239000000203 mixture Substances 0.000 claims description 4
- 238000005516 engineering process Methods 0.000 claims description 3
- 229920000642 polymer Polymers 0.000 claims description 3
- 230000001681 protective effect Effects 0.000 claims description 3
- 239000002904 solvent Substances 0.000 claims description 3
- 239000010931 gold Substances 0.000 description 20
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 14
- 229910052709 silver Inorganic materials 0.000 description 14
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 10
- 239000004332 silver Substances 0.000 description 10
- 244000172533 Viola sororia Species 0.000 description 8
- 239000010949 copper Substances 0.000 description 8
- 239000005001 laminate film Substances 0.000 description 8
- 229920000307 polymer substrate Polymers 0.000 description 8
- 238000012546 transfer Methods 0.000 description 7
- 239000011651 chromium Substances 0.000 description 6
- 229920000139 polyethylene terephthalate Polymers 0.000 description 6
- 239000005020 polyethylene terephthalate Substances 0.000 description 6
- 230000005540 biological transmission Effects 0.000 description 5
- 230000001419 dependent effect Effects 0.000 description 4
- 229920002799 BoPET Polymers 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 3
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 3
- -1 Polyethylene terephthalate Polymers 0.000 description 3
- 239000011230 binding agent Substances 0.000 description 3
- 239000011248 coating agent Substances 0.000 description 3
- 238000000576 coating method Methods 0.000 description 3
- 239000011888 foil Substances 0.000 description 3
- 239000004920 heat-sealing lacquer Substances 0.000 description 3
- 239000002086 nanomaterial Substances 0.000 description 3
- 230000003287 optical effect Effects 0.000 description 3
- 239000002985 plastic film Substances 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 229910004298 SiO 2 Inorganic materials 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- 239000000969 carrier Substances 0.000 description 2
- 239000003086 colorant Substances 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 239000002346 layers by function Substances 0.000 description 2
- 230000001795 light effect Effects 0.000 description 2
- 229910052759 nickel Inorganic materials 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 229920006255 plastic film Polymers 0.000 description 2
- 229910052723 transition metal Inorganic materials 0.000 description 2
- 150000003624 transition metals Chemical class 0.000 description 2
- 229910000906 Bronze Inorganic materials 0.000 description 1
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- 229910003930 SiCb Inorganic materials 0.000 description 1
- 235000005811 Viola adunca Nutrition 0.000 description 1
- 240000009038 Viola odorata Species 0.000 description 1
- 235000013487 Viola odorata Nutrition 0.000 description 1
- 235000002254 Viola papilionacea Nutrition 0.000 description 1
- 239000006096 absorbing agent Substances 0.000 description 1
- 230000003044 adaptive effect Effects 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- 238000013475 authorization Methods 0.000 description 1
- 230000008033 biological extinction Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000010974 bronze Substances 0.000 description 1
- 229910052793 cadmium Inorganic materials 0.000 description 1
- ZPUCINDJVBIVPJ-LJISPDSOSA-N cocaine Chemical compound O([C@H]1C[C@@H]2CC[C@@H](N2C)[C@H]1C(=O)OC)C(=O)C1=CC=CC=C1 ZPUCINDJVBIVPJ-LJISPDSOSA-N 0.000 description 1
- KUNSUQLRTQLHQQ-UHFFFAOYSA-N copper tin Chemical compound [Cu].[Sn] KUNSUQLRTQLHQQ-UHFFFAOYSA-N 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 229910001254 electrum Inorganic materials 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 239000010940 green gold Substances 0.000 description 1
- 230000003760 hair shine Effects 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 229910052741 iridium Inorganic materials 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 229910052748 manganese Inorganic materials 0.000 description 1
- 239000011572 manganese Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 229910052762 osmium Inorganic materials 0.000 description 1
- 229910052763 palladium Inorganic materials 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229910052697 platinum Inorganic materials 0.000 description 1
- 229910052703 rhodium Inorganic materials 0.000 description 1
- 229910052707 ruthenium Inorganic materials 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000010944 silver (metal) Substances 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 239000010981 turquoise Substances 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B42—BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
- B42D—BOOKS; BOOK COVERS; LOOSE LEAVES; PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITY FEATURES; PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOT OTHERWISE PROVIDED FOR; DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDED FOR; MOVABLE-STRIP WRITING OR READING APPARATUS
- B42D25/00—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof
- B42D25/30—Identification or security features, e.g. for preventing forgery
- B42D25/324—Reliefs
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B42—BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
- B42D—BOOKS; BOOK COVERS; LOOSE LEAVES; PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITY FEATURES; PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOT OTHERWISE PROVIDED FOR; DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDED FOR; MOVABLE-STRIP WRITING OR READING APPARATUS
- B42D25/00—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof
- B42D25/20—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof characterised by a particular use or purpose
- B42D25/29—Securities; Bank notes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B42—BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
- B42D—BOOKS; BOOK COVERS; LOOSE LEAVES; PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITY FEATURES; PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOT OTHERWISE PROVIDED FOR; DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDED FOR; MOVABLE-STRIP WRITING OR READING APPARATUS
- B42D25/00—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof
- B42D25/30—Identification or security features, e.g. for preventing forgery
- B42D25/328—Diffraction gratings; Holograms
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B42—BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
- B42D—BOOKS; BOOK COVERS; LOOSE LEAVES; PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITY FEATURES; PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOT OTHERWISE PROVIDED FOR; DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDED FOR; MOVABLE-STRIP WRITING OR READING APPARATUS
- B42D25/00—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof
- B42D25/30—Identification or security features, e.g. for preventing forgery
- B42D25/351—Translucent or partly translucent parts, e.g. windows
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B42—BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
- B42D—BOOKS; BOOK COVERS; LOOSE LEAVES; PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITY FEATURES; PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOT OTHERWISE PROVIDED FOR; DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDED FOR; MOVABLE-STRIP WRITING OR READING APPARATUS
- B42D25/00—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof
- B42D25/30—Identification or security features, e.g. for preventing forgery
- B42D25/36—Identification or security features, e.g. for preventing forgery comprising special materials
- B42D25/373—Metallic materials
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B42—BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
- B42D—BOOKS; BOOK COVERS; LOOSE LEAVES; PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITY FEATURES; PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOT OTHERWISE PROVIDED FOR; DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDED FOR; MOVABLE-STRIP WRITING OR READING APPARATUS
- B42D25/00—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof
- B42D25/40—Manufacture
- B42D25/405—Marking
- B42D25/425—Marking by deformation, e.g. embossing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B42—BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
- B42D—BOOKS; BOOK COVERS; LOOSE LEAVES; PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITY FEATURES; PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOT OTHERWISE PROVIDED FOR; DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDED FOR; MOVABLE-STRIP WRITING OR READING APPARATUS
- B42D25/00—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof
- B42D25/40—Manufacture
- B42D25/405—Marking
- B42D25/43—Marking by removal of material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B42—BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
- B42D—BOOKS; BOOK COVERS; LOOSE LEAVES; PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITY FEATURES; PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOT OTHERWISE PROVIDED FOR; DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDED FOR; MOVABLE-STRIP WRITING OR READING APPARATUS
- B42D25/00—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof
- B42D25/40—Manufacture
- B42D25/45—Associating two or more layers
- B42D25/465—Associating two or more layers using chemicals or adhesives
- B42D25/47—Associating two or more layers using chemicals or adhesives using adhesives
Definitions
- the invention relates to a security element for securing
- An embossing lacquer layer arranged layer structure and a suitable for bonding the security element with a valuable item adhesive layer, wherein the layer structure opaque, metallic areas, semitransparent areas that give a viewer when viewed in incident light and when viewed in transmitted light a different color impression, and transparent areas ,
- the invention further relates to methods for producing such a security element and a data carrier with such a security element.
- Data carriers such as value or ID documents, or others
- Valuables such as branded goods, are often provided with security elements for the purpose of protection, which permit a verification of the authenticity of the data carriers and at the same time as protection against unauthorized use
- Viewing angles convey a different image impression and, for example, depending on the viewing angle, another color or
- color shift effect uses multi-layer thin-film elements whose color impression changes for the viewer with the viewing angle (hereinafter referred to as color shift effect).
- the color shift effect is based on such
- Partial layers of the element The difference in the path of the light reflected at the different layers depends, on the one hand, on the optical thickness of a dielectric spacer layer, which determines the distance between one and the other
- Semi-transparent absorber layer and a reflective layer sets, and on the other hand varies with the respective viewing angle. Since the
- Path difference in the order of the wavelength of the visible light is due to extinction and amplification of certain wavelengths an angle-dependent color impression for the
- Dielectric spacer layer a variety of different color shift effects can be designed.
- security elements with multilayer thin-film elements which, when viewed in incident light, i. in reflection, appear in a first color and when viewed in the
- the multilayer structure that appears golden when viewed in reflected light and blue when viewed in transmitted light.
- the multilayer structure is based on two semitransparent mirror layers and a dielectric spacer layer arranged between the two mirror layers.
- the invention is based on the object
- An embossing lacquer layer arranged layer structure and a suitable for bonding the security element with a valuable item adhesive layer, wherein the layer structure opaque, metallic areas, semitransparent areas that give a viewer when viewed in incident light and when viewed in transmitted light a different color impression, and transparent areas , where both the transparent
- Areas as well as the opaque, metallic areas are each formed in the form of patterns, characters or a coding and the
- An embossing lacquer layer arranged layer structure and a suitable for bonding the security element with a valuable item adhesive layer, wherein the layer structure opaque, metallic areas, semitransparent areas that give a viewer when viewed in incident light and when viewed in transmitted light a different color impression, and transparent areas , where both the transparent
- Areas as well as the semitransparent areas each in the form of Patterns, characters or a coding are formed and the opaque, metallic areas represent a background.
- Metallization available by vapor deposition in particular an Al or Ag metallization, are based or can be obtained by printing technology and are based on platelet-shaped metal pigments.
- a security element according to one of the clauses 1 to 5, wherein the embossing lacquer layer is provided with an embossed relief structure and the relief structure in particular a diffractive structure, such as a hologram, a holographic grating image or a
- hologram-like diffraction structure or an achromatic structure, such as a matte structure, or a micromirror array or blazed grating with a saw-toothed ridge profile, or a Fresnel lens array, or a combination of two or more of the aforementioned elements.
- a security element according to one of the clauses 1 to 6, wherein the embossing lacquer layer has an embossed relief structure in the respective regions in the form of patterns, characters or a coding, namely the transparent regions on the one hand and the opaque, metallic regions on the other hand or the transparent regions on the one hand and the semitransparent regions on the other hand, is formed with two different relief structures, in particular such that the one relief structure forms a diffractive structure and the second relief structure forms a micromirror arrangement.
- Transmitted light is different from the color impression of the opaque, metallic areas.
- Metallization is provided or printed with platelet-shaped metal pigments, so as to form the metallic, opaque areas.
- Layer sequence of the security element is the following:
- Data carrier according to clause 17 or 18, wherein the data carrier is a value document, such as a banknote, in particular a paper banknote, polymer banknote or composite film banknote, or identity card.
- Security element for securing value documents in particular a security element according to one of the clauses 1 to 16, with a carrier, arranged on the carrier via an embossing lacquer layer
- Layer structure and an adhesive layer suitable for bonding the security element with a valuable item wherein the layer structure opaque, metallic areas, semitransparent areas that give a viewer when viewed in incident light and when viewed in transmitted light a different color impression, and transparent areas, wherein the method comprises the following steps:
- a metallization eg a reflective Al, Cr, Cu or Au layer, in particular by means of vapor deposition, an Al layer being preferred;
- a metallization eg a reflective Al, Cr, Cu or Au layer, in particular by means of vapor deposition, an Al layer being preferred;
- step of producing a multilayer structure comprising two semitransparent metallic layers and a dielectric layer arranged between the two semitransparent metallic layers, in particular by means of vapor deposition;
- an adhesive layer e.g. a
- Security element for securing value documents in particular a security element according to one of the clauses 1 to 16, with a carrier, arranged on the carrier via an embossing lacquer layer
- Layer structure and a suitable adhesive layer for bonding the security element with a valuable item comprising the following steps:
- step of producing a multilayer structure comprising two semitransparent metallic layers and a dielectric layer arranged between the two semitransparent metallic layers, in particular by means of vapor deposition;
- an adhesive layer e.g. a
- Layer structure and a suitable for bonding the security element with a valuable item adhesive layer comprises the following steps:
- step of producing a multilayer structure comprising two semitransparent metallic layers and a dielectric layer arranged between the two semitransparent metallic layers, in particular by means of vapor deposition;
- a metallization e.g. a reflective Al, Cr, Cu or Au layer
- vapor deposition with an Al layer being preferred, the step being such that a portion of the
- semitransparent areas is additionally provided with a metallization obtainable by vapor deposition, in order in this way the
- an adhesive layer e.g. a
- an observation in incident light is an illumination of the data carrier from one side and a viewing of the data carrier from the same side.
- a reflection in incident light is thus present, for example, when the front of the data carrier is illuminated and also viewed.
- a reflection in transmitted light is in the sense of this invention
- a reflection in transmitted light is thus present, for example, when the back of the data carrier is illuminated and the front of the data carrier is viewed. The light thus shines through the data carrier.
- the data carrier of the data carrier e.g.
- a value document substrate such as a banknote substrate
- a security document provided with a window portion may be used in the case of a paper substrate, a paper / foil / paper composite substrate, or a foil / paper / foil composite substrate, e.g.
- the paper layer may be coated by means of a suitable liquid, e.g. by means of aqueous sulfuric acid solution, in one
- a Window area for example by means of congruent recesses in the applied on the front and back of the polymer substrate opaque
- Print layers are generated.
- a carrier i. a carrier substrate such as a film, with an embossing lacquer layer with embossed relief structure and a
- semi-transparent areas which give a viewer a different color impression when viewed in reflected light and when viewed in transmitted light, and have transparent areas.
- the opaque, metallic areas are in particular by means of e.g. formed by vapor deposition metallization or reflective layer, preferably by an aluminum layer. In principle, however, other metals such as silver, nickel, copper, iron, chromium or gold come into consideration for the metallization. Alternatively, the opaque, metallic areas by a technically available
- Reflection layer are formed.
- Platelet-shaped metal pigments suitable for producing the reflection layer are known from WO 2013/186167 A2, WO 2010/069823 A1, WO 2005/051675 A2 (see, for example, US Pat
- Metal pigments have the advantage that they adapt to a substrate with relief structure, in particular a relief with microstructures and / or nanostructures, so well that the difference to a
- Reflection layer makes dispensing with time-consuming Examples include printing the support with a soluble wash paint in the form of a desired recess within the reflective layer to be formed, forming a metallization by vapor deposition, and washing the wash paint together with the metallization applied above the wash paint.
- the layer structure of the security element according to the invention according to a first variant has opaque, metallic regions, semitransparent
- the security element according to the invention according to a second variant has opaque, metallic areas, semi-transparent areas, which give a viewer a different color impression when viewed in reflected light and when viewed in transmitted light, and transparent areas, both the transparent areas and the semi-transparent areas respectively are formed in the form of patterns, characters or an encoding and the opaque, metallic areas represent a background.
- Both variants are based on the general idea, a
- the one area formed in the form of patterns, characters or a coding is initially imperceptible when viewed in incident light, but only first when viewed in transmitted light.
- the color of the semi-transparent regions when viewed in reflected light is identical to the color of the opaque, metallic regions.
- Transmitted light can be seen, increases the interest of the viewer and increases the security against counterfeiting of the respective object of value.
- the semitransparent areas which give a viewer a different color impression when viewed in incident light and when viewed in transmitted light, are based in particular on a multilayer structure with two semitransparent metallic layers and a dielectric layer arranged between the two semitransparent metallic layers.
- a multi-layered structure which appears gold-colored when viewed in reflected light and shows a blue hue when viewed in transmitted light, is e.g. from WO 2011/082761 Al known.
- the two semitransparent metallic layers are preferably selected from Al or Ag;
- the dielectric layer is in particular an SiO 2 layer;
- the respective preferred layer thickness is in a range from 5 nm to 20 nm, particularly preferably in a range from 10 nm to 14 nm;
- the Si0 2 dielectric 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, and more preferably in a range of 210 nm to 260 nm, with the ranges of 80 nm to 100 nm and 210 nm to 240 nm being especially preferred for providing a gold / blue color change;
- the respective preferred layer thickness is in a range of 15 nm to 25 nm; the SiCh dielectric layer preferably has one
- Layer thickness in a range of 50 nm to 450 nm, more preferably in a range of 80 nm to 260 nm, and particularly preferably in a range of 210 nm to 260 nm, wherein the ranges of 80 nm to 100 nm and 210 nm to 240 especially preferred for providing a gold / blue color change.
- the multilayered layer structures mentioned above not only enable the generation of a semitransparent functional layer, which contributes to the formation of a semitransparent functional layer
- the semitransparent areas which give a viewer a different color impression when viewed in incident light and when viewed in transmitted light, can furthermore be obtained by means of an effect pigment composition.
- Effect pigment composition that when viewed in reflected light a show different color as when viewed in transmitted light, in particular a gold / blue color change, a gold / violet color change, a green / gold / magenta color change, a violet / green color change or a silver / opaque color change, for example in WO 2011/064162 A2
- the pigments preferably have a longest dimension of edge length from end-to-end in a range of 15 nm to 1000 nm and are based on a transition metal selected from the group consisting of Cu, Ag, Au Zn, Cd, Ti, Cr, Mn, Fe, Co, Ni, Ru, Rh, Pd, Os, Ir, and Pt.
- the transition metal is preferably Ag.
- the aspect ratio ie, the ratio of the longest dimension from end to end) End thickness
- Metal pigment is preferably below 10: 1, in particular below 5: 1.
- the color can be seen in transmission and the color when viewed in reflection (eg, blue in Transmission and silver, gold, bronze, copper or violet in reflection, in addition also violet, magenta, pink, green or brown in transmission and different colors in reflection, which depend on the choice of pigment / binder ratio). Colors with
- the security element according to the invention can in particular be configured as a so-called laminate film, in which the carrier or the carrier substrate is firmly anchored to the embossing lacquer layer.
- the laminate film which is in particular in the form of a patch, a strip or a thread, can then together with the carrier on a
- a window or a recess in the value document substrate can be closed in this way.
- the security element according to the invention can furthermore be designed as a so-called transfer film, in which the carrier or the carrier substrate is not firmly anchored to the embossing lacquer layer, but can be detached from the embossing lacquer layer.
- the transfer film which is in particular in the form of a patch, a strip or a thread, can on a
- Wertdocumentsubstrat be applied without the carrier substrate of the transfer film remains on the value document substrate.
- Such a procedure is particularly suitable in the case that the value document substrate to be equipped with the security element is a polymer substrate.
- the layer thickness in the product obtained is not too high.
- Security element in particular in the case of being present as a
- Laminate film in order, the following layers:
- a carrier substrate e.g. Polyethylene terephthalate (PET) film
- PET Polyethylene terephthalate
- embossing lacquer layer which in particular forms a relief structure forming a diffractive structure and / or a micromirror arrangement
- Relief structure has; the layer or layers which form the opaque, metallic areas on the one hand and the semitransparent areas which give a viewer a different color impression when viewed in incident light and when viewed in transmitted light; in between the transparent areas are arranged;
- an adhesive layer e.g. a heat seal coating suitable for bonding the security element to the data carrier substrate.
- the security element according to the invention in particular in the case of presence as a
- Laminate film in order, the following layers:
- an adhesive layer e.g. a heat seal coating suitable for adhering the security element to the data carrier substrate
- a support substrate e.g. Polyethylene terephthalate (PET) film
- PET Polyethylene terephthalate
- embossing lacquer layer which in particular forms a relief structure forming a diffractive structure and / or a micromirror arrangement
- Relief structure has;
- transparent regions and the semitransparent regions in two separate subregions and a portion of the semitransparent regions is additionally provided with a metallization obtainable by vapor deposition or is printed with platelet-shaped metal pigments, thus forming the metallic, opaque regions;
- inventive security element according to the above further advantageous variant can in particular be designed such that the semi-transparent regions are based on a multilayer structure which, when viewed in reflected light, appears gold-colored and in which
- Printed metal pigments to form in this way silver, metallic, opaque areas.
- Security element in particular in the case of being present as a
- a carrier substrate e.g. Polyethylene terephthalate (PET) film
- PET Polyethylene terephthalate
- embossing lacquer layer which in particular forms a relief structure forming a diffractive structure and / or a micromirror arrangement
- Relief structure has;
- an adhesive layer e.g. a heat seal coating suitable for bonding the security element to the data carrier substrate.
- the embossing lacquer layer has only a weak adhesion to the carrier substrate, which For example, by a poor adhesion of the embossing lacquer substrate on the carrier or by the introduction of a special separation layer can be achieved.
- the invention further relates to a method for producing the security element according to the invention for securing
- the layer structure opaque, metallic areas, semitransparent areas, which give a viewer a different color impression when viewed in incident light and when viewed in transmitted light, and transparent areas on pregelack Mrs arranged layer and a suitable adhesive for bonding the security element with a valuable item , the method comprising the following steps:
- a metallization e.g. a reflective Al, Cr, Cu or Au layer, in particular by vapor deposition, with an Al layer being preferred;
- an adhesive layer e.g. a
- Security element for securing documents of value with a carrier, a layer structure arranged on the carrier over an embossing lacquer layer and an adhesive layer suitable for bonding the security element to a valuable article, the layer structure comprising opaque, metallic regions, semitransparent regions which are visible to the viewer when viewed in incident light and, when viewed in transmitted light, give a different color impression and have transparent areas, the following steps include:
- the step of printing a soluble wash ink in the areas outside the semitransparent areas to be created the step of producing a multilayer structure comprising two semitransparent metallic layers and a dielectric layer arranged between the two semitransparent metallic layers, in particular by means of vapor deposition;
- an adhesive layer e.g. a
- Security element for securing value documents with a carrier, a layer structure arranged on the carrier over an embossing lacquer layer and an adhesive layer suitable for bonding the security element to a valuable article, wherein the layer structure comprises opaque, metallic regions, semitransparent regions which are visible to the viewer when viewed in incident light and when viewing in transmitted light give a different color impression, and has transparent areas, comprises the following steps:
- a metallization e.g. a reflective Al, Cr, Cu or Au layer
- vapor deposition with an Al layer being preferred, the step being such that a portion of the
- semitransparent areas is additionally provided with a metallization obtainable by vapor deposition, in order in this way the
- an adhesive layer e.g. a
- the security element according to the invention can additionally be equipped with magnetic and / or fluorescent security features.
- the invention further relates to a data carrier with a
- the data carrier may be a value document, such as a banknote, in particular a
- Figure 1 is a schematic representation of a banknote with a security element according to the invention
- Figure 2 shows an inventive security element according to a first embodiment in plan view
- FIG. 3 shows a detail of the invention
- Figure 4 shows a detail of an inventive
- Figure 5 shows a detail of an inventive
- FIG. 6 a top view of a security element according to the invention in accordance with a fourth exemplary embodiment
- Figure 7 is a schematic representation of a banknote with a security element according to the invention in the form of a security thread
- FIG. 8 shows an inventive security element according to a fifth embodiment in plan view
- FIG. 10 a top view of a security element according to the invention in accordance with a sixth exemplary embodiment
- FIG. 11 shows an inventive security element according to a seventh exemplary embodiment when viewed in incident light.
- Figure 12 shows the security element according to the invention according to the seventh embodiment when viewed in reflected light.
- Banknotes explained. 1 shows a schematic representation of a banknote 1 with a transparent window area 3 (dashed line) is provided), which is provided with a security element 2 according to the invention in the form of a patch.
- the banknote 1 is based on a paper substrate which has a continuous recess in the region 3.
- the continuous recess is covered on at least one side of the paper substrate by the security element according to the invention, which is present as a laminate film.
- the paper substrate On the opposite side of the paper substrate from the security element, the paper substrate may optionally be provided with an additional transparent film.
- the additional transparent film may e.g. cover at least the area of the continuous recess.
- the banknote shown in FIG. 1 has in the lower, left-hand area the denomination "20" produced by printing technology.
- the security element 2 shows a security element according to the invention 2 according to a first embodiment in plan view.
- the security element 2 is semitransparent in the area shown hatched, the viewer perceives this area when viewed in reflected light in the form of a gold-colored metallization, when viewed in transmitted light takes the
- the security element 2 is opaque, metallic, both when viewed in reflected light and when viewed in transmitted light, in the white area (see the numeral "0") is the
- FIG. 3 shows a detail of the invention
- the carrier 4 in the form of a transparent
- Plastic film e.g. a PET film, has an embossing 5.
- the relief structure (i.e., the surface) of the embossing lacquer 5 contains e.g. a
- Microstructure Above the embossing 5 are on the left and on the Semitransparent thin-film elements present on the right side, which give a viewer a different color impression when viewed in reflected light and when viewed in transmitted light
- Such a thin-film element which appears golden in the on-light and blue in the transmitted light, is in WO
- the semitransparent regions are provided in FIG. 3 with the letter "A” and form the background shown in FIG. 2 in hatched form and surrounding the number "20".
- the middle region of the embossing lacquer 6 is provided with an opaque, reflective Al layer.
- the opaque, metallic region is provided with the letter "C" in FIG. 3 and forms the number shown in FIG.
- the transparent areas are designated in FIG. 3 by the letter "B” and form the number "0" shown in FIG.
- the security element in the form of a laminate film posed in FIG. 3 is coated by means of an adhesive layer 11, in particular a
- Heat sealing lacquer layer applied to the paper substrate of bank note 1, so that the recess 3 of the banknote is closed on one side by the security element and the viewer in the window area of the banknote can perceive the optical incident light and transmitted light effects particularly well.
- the adhesive layer 11 may optionally have an optional
- Primer layer 10 are arranged.
- FIG. 5 shows a detail of a security element according to the invention in accordance with a third
- Embodiment which is based on the first embodiment according to the figure 3, in cross-sectional view.
- FIG. 5 the microstructure or nanostructure of the embossing lacquer layer 5 and which conforms to the relief of the
- FIG. 4 shows a section of a device according to the invention
- the security element shown in FIG. 4 is also in the form of a laminate film and is suitable for covering the
- the security element shown in FIG. 4 contains a carrier 4 in the form of a
- an embossing lacquer 5 which is provided with a relief structure in the form of a micro or nanostructure.
- embossing lacquer 5 on the left side, on the right side and in the central area, there are semitransparent thin-film elements which are viewed by a viewer in reflected light and when viewed in transmitted light give a different color impression, in the present case, these are
- Thin-film elements each having two semitransparent mirror layers (with the reference numbers 6 and 8) and one between the two
- Mirror layers arranged dielectric spacer layer 7 have. Such a thin-film element appears e.g. in reflected light gold and in transmitted light blue. Certain areas of the left and right
- Semitransparent thin-film elements additionally have a
- the semitransparent thin-film elements which respectively contain the layers 6, 7, and 8) and the opaque, metallic layer 12 are covered by the resist 10.
- a color receiving layer or pressure receiving layer (not shown in the figure) can be arranged above the protective lacquer 10 so that the security element can additionally be printed with ink.
- the security element shown in the figure 4 in the shape of a
- Laminate film is by means of an adhesive layer 11, in particular a
- Heat sealing lacquer layer applied to the paper substrate of the banknote 1, so that the recess 3 of the banknote from the security element is closed on one side and the viewer can perceive the optical reflected light and transmitted light effects particularly well in the window area of the banknote.
- the security element shown in FIG. 4 appears metallic and opaque (eg, silver) to the viewer in the areas "C", golden in the semitransparent areas "A” when viewed in incident light, and blue in the transmitted light when viewed ,
- the areas "B” represent the transparent areas.
- 6 shows a security element according to the invention according to a fourth embodiment in plan view. The fourth embodiment is to that described in connection with the figures 1 to 4
- Embodiment ajar. Unlike the security element shown in FIG. 2, in the case of FIG. 6, the viewer perceives the number "2" as viewed in reflected light in gold and when viewed in transmitted light in blue hue, ie, the figure “2" is in the shape of a semitransparent region formed, for example by means of a semi-transparent Al / Si0 2 / Al thin-film element.
- the figure “0" is formed in the shape of a transparent area, and the background surrounding the numbers "2" and "0” is in the form of an opaque metallic surface, in the form of a reflective Al layer in the example.
- FIG. 7 shows a schematic representation of a banknote 13 with a security element 14 according to the invention in the form of a security thread or security strip.
- the banknote 13 is a plastic banknote and is based on a polymer substrate.
- the security element 14 was formed prior to application to the polymer substrate of the banknote 13 in the form of a transfer film (i.e., a releasable support substrate).
- FIG. 8 shows the detail of an inventive device
- the security element 14 is semitransparent in the area shown hatched, the viewer perceives this area when viewed in light on in the form of a gold-colored metallization, in the
- the security element 14 is opaque, metallic, both when viewing in reflected light and when viewing in transmitted light.
- the security element 2 is transparent.
- FIG. 9 shows a detail of the invention
- the carrier 4 in the form of a transparent
- Plastic film e.g. a PET film, has an embossing 5.
- the relief structure (i.e., the surface) of the embossing lacquer 5 contains e.g. a
- embossing lacquer 5 semitransparent thin-film elements are present on the left and on the right side, which convey a different color impression to a viewer when viewed in reflected light and when viewed in transmitted light
- Such a thin-film element which appears gold-colored in incident light and blue in transmitted light, is disclosed in WO
- the semitransparent regions are provided with the letter “A” in FIG. 9 and form the background shown hatched in FIG. 8 and surrounding the numbers "20".
- the middle region of the embossing lacquer 6 is provided with an opaque, reflective Al layer.
- the opaque, metallic region is provided with the letter “C” in FIG. 9 and forms the black numbers "20" shown on the left and right in FIG.
- the transparent areas are designated in FIG. 9 by the letter "B” and form the middle white number "20" shown in FIG.
- the asked in the figure 9 represents security element in the shape of a
- Transfer film is by means of an adhesive layer 11, in particular a
- Heat sealing lacquer layer applied to the polymer substrate of the banknote 13. After application to the polymer substrate, the detachment of the temporary carrier 4 from that applied to the banknote takes place
- FIG. 10 shows a security element according to the invention according to a sixth embodiment in plan view.
- Embodiment is based on the embodiment described in connection with FIGS. 7 to 9.
- the security element shown in FIG. 8 in the case of FIG. 10 the viewer perceives the numbers "20" shown on the left and right in gold when viewed in reflected light and in blue in the transmitted light, ie, the hatched ones Numbers "20" are each formed in the shape of a semitransparent region, eg by means of a
- Embossing lacquer 5 is not provided with an opaque, reflective, silver Al layer, but with an opaque, reflective, gold-colored layer (for example an Au layer or a Cu layer).
- This opaque, metallic, gold-colored area forms in FIGS. 11 and 12 the black one
- the numbers "20" shown on the left and right are each based on a semitransparent thin film which, when viewed in the
- Incident light is golden and when viewed in transmitted light is bluish. Therefore, the observer can not perceive the two numbers "20" shown left and right when viewed in incident light (see FIG. 11), but only when viewed in transmitted light (see FIG. 12).
- the middle number "20" shown in Figs. 11 and 12 is formed in the shape of a transparent area (see the area "B" in Fig. 9).
- Embodiment may be for the opaque, metallic, reflective layer (see reference numeral 9 in Figure 9) a silver Al layer and for the semitransparent thin film (see layers 6, 7 and 8 in Fig. 9), an Al / SiO 2 / Al layer structure or an Al / SiCb / Al layer structure which is silver when viewed in incident light and in which Contemplation in transmitted light violet.
- Embossing lacquer layer 5 are present in all other embodiments, in the figures 3, 4 and 9 was omitted for simplicity drawing on the relief.
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP23020047.9A EP4219182A3 (en) | 2018-04-13 | 2019-04-08 | Security element, method for producing same and data carrier equipped with the security element |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102018003030.0A DE102018003030A1 (en) | 2018-04-13 | 2018-04-13 | Security element, method for producing the same and equipped with the security element disk |
PCT/EP2019/000112 WO2019197054A1 (en) | 2018-04-13 | 2019-04-08 | Security element, method for producing same, and data carrier equipped with the security element |
Related Child Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP23020047.9A Division EP4219182A3 (en) | 2018-04-13 | 2019-04-08 | Security element, method for producing same and data carrier equipped with the security element |
EP23020047.9A Division-Into EP4219182A3 (en) | 2018-04-13 | 2019-04-08 | Security element, method for producing same and data carrier equipped with the security element |
Publications (2)
Publication Number | Publication Date |
---|---|
EP3774375A1 true EP3774375A1 (en) | 2021-02-17 |
EP3774375B1 EP3774375B1 (en) | 2023-06-21 |
Family
ID=66223655
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP23020047.9A Pending EP4219182A3 (en) | 2018-04-13 | 2019-04-08 | Security element, method for producing same and data carrier equipped with the security element |
EP19718247.0A Active EP3774375B1 (en) | 2018-04-13 | 2019-04-08 | Security element, method for producing same, and data carrier equipped with the security element |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP23020047.9A Pending EP4219182A3 (en) | 2018-04-13 | 2019-04-08 | Security element, method for producing same and data carrier equipped with the security element |
Country Status (4)
Country | Link |
---|---|
EP (2) | EP4219182A3 (en) |
CN (1) | CN111867851B (en) |
DE (1) | DE102018003030A1 (en) |
WO (1) | WO2019197054A1 (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102020007728A1 (en) | 2020-12-17 | 2022-06-23 | Giesecke+Devrient Currency Technology Gmbh | Data carrier with composite substrate with a security element arranged in a see-through area |
DE102022002353A1 (en) * | 2022-06-29 | 2024-01-04 | Giesecke+Devrient Currency Technology Gmbh | Security element, value document and method for producing the same |
Family Cites Families (16)
Publication number | Priority date | Publication date | Assignee | Title |
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DE10150293B4 (en) * | 2001-10-12 | 2005-05-12 | Ovd Kinegram Ag | security element |
CN100534806C (en) * | 2002-05-14 | 2009-09-02 | 雷恩哈德库兹两合公司 | Optically variable element comprising a sequence of thin-film layers |
GB0326576D0 (en) | 2003-11-14 | 2003-12-17 | Printetch Ltd | Printing composition |
DE102008013167A1 (en) * | 2008-03-07 | 2009-09-10 | Giesecke & Devrient Gmbh | Security element and method for its production |
EP2379650B1 (en) | 2008-12-19 | 2017-11-29 | Basf Se | Thin aluminum flakes |
DE102009048145A1 (en) * | 2009-10-02 | 2011-04-07 | Giesecke & Devrient Gmbh | Disk with window |
JP6164845B2 (en) | 2009-11-27 | 2017-07-19 | ビーエーエスエフ ソシエタス・ヨーロピアBasf Se | Coating composition for security elements and holograms |
DE102009058243A1 (en) | 2009-12-14 | 2011-06-16 | Giesecke & Devrient Gmbh | Thin-film element with multilayer structure |
WO2013186167A2 (en) | 2012-06-14 | 2013-12-19 | Basf Se | Method for manufacturing security elements and holograms |
DE102013113283A1 (en) * | 2013-11-29 | 2015-06-03 | Leonhard Kurz Stiftung & Co. Kg | Multilayer body and method for its production |
US10166808B2 (en) * | 2013-12-11 | 2019-01-01 | Sicpa Holding Sa | Optically variable security threads and stripes |
DE102014001842A1 (en) * | 2014-02-11 | 2015-08-13 | Giesecke & Devrient Gmbh | Method for producing a security element with negative writing and security element available therefrom |
DE102014018204A1 (en) * | 2014-12-09 | 2016-06-09 | Giesecke & Devrient Gmbh | Security element, method for producing the same and equipped with the security element disk |
DE102014019088A1 (en) * | 2014-12-18 | 2016-06-23 | Giesecke & Devrient Gmbh | Optically variable see-through safety element |
DE102015010744A1 (en) * | 2015-08-17 | 2017-02-23 | Giesecke & Devrient Gmbh | Security element, method for producing the same and equipped with the security element disk |
CN105479974B (en) * | 2015-12-01 | 2018-07-13 | 中钞特种防伪科技有限公司 | A kind of optical anti-counterfeit element and the optical anti-counterfeiting product using the optical anti-counterfeit element |
-
2018
- 2018-04-13 DE DE102018003030.0A patent/DE102018003030A1/en not_active Withdrawn
-
2019
- 2019-04-08 EP EP23020047.9A patent/EP4219182A3/en active Pending
- 2019-04-08 EP EP19718247.0A patent/EP3774375B1/en active Active
- 2019-04-08 CN CN201980019152.7A patent/CN111867851B/en active Active
- 2019-04-08 WO PCT/EP2019/000112 patent/WO2019197054A1/en active Application Filing
Also Published As
Publication number | Publication date |
---|---|
CN111867851A (en) | 2020-10-30 |
CN111867851B (en) | 2022-03-15 |
DE102018003030A1 (en) | 2019-10-17 |
WO2019197054A1 (en) | 2019-10-17 |
EP4219182A3 (en) | 2023-11-01 |
EP4219182A2 (en) | 2023-08-02 |
EP3774375B1 (en) | 2023-06-21 |
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