EP3374197A1 - Sicherheitselement, verfahren zum herstellen desselben und mit dem sicherheitselement ausgestatteter datenträger - Google Patents
Sicherheitselement, verfahren zum herstellen desselben und mit dem sicherheitselement ausgestatteter datenträgerInfo
- Publication number
- EP3374197A1 EP3374197A1 EP16797741.2A EP16797741A EP3374197A1 EP 3374197 A1 EP3374197 A1 EP 3374197A1 EP 16797741 A EP16797741 A EP 16797741A EP 3374197 A1 EP3374197 A1 EP 3374197A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- layer
- semitransparent
- security element
- metallic layer
- semitransparent metallic
- 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 6
- 239000000758 substrate Substances 0.000 claims abstract description 46
- 229910052751 metal Inorganic materials 0.000 claims abstract description 22
- 239000002184 metal Substances 0.000 claims abstract description 22
- 239000010410 layer Substances 0.000 claims description 317
- 239000002346 layers by function Substances 0.000 claims description 55
- 229910052709 silver Inorganic materials 0.000 claims description 22
- 229910052782 aluminium Inorganic materials 0.000 claims description 17
- 239000010931 gold Substances 0.000 claims description 16
- 229910052737 gold Inorganic materials 0.000 claims description 16
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical group [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims description 15
- 239000000049 pigment Substances 0.000 claims description 14
- 239000004332 silver Substances 0.000 claims description 13
- 239000004922 lacquer Substances 0.000 claims description 11
- 238000004049 embossing Methods 0.000 claims description 10
- 239000003086 colorant Substances 0.000 claims description 8
- 230000000694 effects Effects 0.000 claims description 8
- 239000002131 composite material Substances 0.000 claims description 7
- 239000000203 mixture Substances 0.000 claims description 6
- 229910004298 SiO 2 Inorganic materials 0.000 claims description 5
- 230000001419 dependent effect Effects 0.000 claims description 4
- 150000002739 metals Chemical class 0.000 claims description 4
- 238000005406 washing Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 claims description 2
- 229920000642 polymer Polymers 0.000 claims description 2
- 238000000637 aluminium metallisation Methods 0.000 description 19
- 239000010408 film Substances 0.000 description 14
- 229920000139 polyethylene terephthalate Polymers 0.000 description 12
- 239000005020 polyethylene terephthalate Substances 0.000 description 12
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical group [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 11
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 8
- 244000172533 Viola sororia Species 0.000 description 7
- -1 Polyethylene terephthalate Polymers 0.000 description 6
- 239000012790 adhesive layer Substances 0.000 description 6
- 239000011248 coating agent Substances 0.000 description 6
- 238000000576 coating method Methods 0.000 description 6
- 230000005540 biological transmission Effects 0.000 description 5
- 239000011230 binding agent Substances 0.000 description 3
- 229920000307 polymer substrate Polymers 0.000 description 3
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- 235000005811 Viola adunca Nutrition 0.000 description 2
- 240000009038 Viola odorata Species 0.000 description 2
- 235000013487 Viola odorata Nutrition 0.000 description 2
- 235000002254 Viola papilionacea Nutrition 0.000 description 2
- 239000000969 carrier Substances 0.000 description 2
- 229910052804 chromium Inorganic materials 0.000 description 2
- 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 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 229910001254 electrum Inorganic materials 0.000 description 2
- 239000010940 green gold Substances 0.000 description 2
- 238000005286 illumination Methods 0.000 description 2
- 230000000704 physical effect Effects 0.000 description 2
- 239000010409 thin film Substances 0.000 description 2
- 229910052723 transition metal Inorganic materials 0.000 description 2
- 150000003624 transition metals Chemical class 0.000 description 2
- 239000002966 varnish Substances 0.000 description 2
- 229910000906 Bronze Inorganic materials 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 238000013475 authorization Methods 0.000 description 1
- 239000010974 bronze Substances 0.000 description 1
- 229910052793 cadmium Inorganic materials 0.000 description 1
- 230000000295 complement effect Effects 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
- 238000005516 engineering process Methods 0.000 description 1
- 230000003760 hair shine Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 229910052748 manganese Inorganic materials 0.000 description 1
- 238000001465 metallisation Methods 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 229910052703 rhodium Inorganic materials 0.000 description 1
- 229910052707 ruthenium Inorganic materials 0.000 description 1
- 239000010944 silver (metal) Substances 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
- 229910052719 titanium Inorganic materials 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
- 239000011701 zinc Substances 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
- B42D25/20—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
- B42D25/20—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof characterised by a particular use or purpose
- B42D25/23—Identity cards
-
- 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
- B42D25/355—Security threads
-
- 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
- B42D25/43—Marking by removal of material
- B42D25/445—Marking by removal of material using chemical means, e.g. etching
-
- 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
Definitions
- the invention relates to a security element, a method of manufacturing the same and a data carrier equipped with the security element, e.g. a value document such as a banknote.
- Data carriers such as security documents or other valuables, such as branded articles, are often provided with security elements for the purpose of security, which permit verification of the authenticity of the data carriers and at the same time serve as protection against unauthorized reproduction.
- WO 2011/082761 Al describes a thin-film element with a multilayer structure, which appears gold-colored 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 object of the invention is to specify a security element of the type mentioned at the outset with a high level of protection against forgery and an attractive visual appearance and a production method therefor.
- security element for securing value documents, comprising a transparent carrier substrate and a first semitransparent functional layer having a multilayer structure with a first semitransparent metallic layer, a second semitransparent metallic layer and one between the first and the second semitransparent metallic Layer disposed dielectric layer, wherein the second semitransparent metallic layer is present at least partially in a greater layer thickness than that of the first semitransparent metallic layer.
- the layer thickness of the second semitransparent metallic layer is at least partially 1.25 to 3 times, more preferably 1.5 to 2 times, as high as the
- second semitransparent metallic layer at least partially present in a greater layer thickness than the first semitransparent metallic layer
- the security element has the following layer structure in order: transparent carrier substrate;
- second semitransparent metallic layer at least partially present in a greater layer thickness than the first semitransparent metallic layer
- the layer thickness of the second semitransparent metallic layer is preferably at least partially 1.25 to 3 times, particularly preferably 1.5 to 2 times, as high as the layer thickness of the first semitransparent metallic layer.
- the first visually recognizable color is gold; the second visually recognizable color is silver;
- the third visually recognizable color is blue.
- a security element according to any one of paragraphs 1 to 5, wherein the first semitransparent functional layer with multilayer structure is such that the first semitransparent metallic layer and the dielectric layer are each present in a uniform layer thickness and the second semitransparent metallic layer in first regions has the same layer thickness as the first semitransparent metallic layer and in the second regions has a greater layer thickness than that of the first semitransparent metallic layer.
- a security element according to one of the paragraphs 1 to 7, wherein the transparent carrier substrate of the security element next to the first semitransparent functional layer still has a second, technically available by means of an effect pigment composition semitransparent functional layer, wherein the second semitransparent functional layer in the Viewing in reflected light, both from the back and from the front in the first, visually recognizable color appears and when viewed in transmitted light, both from the back and from the front in the third, visually recognizable color appears.
- the second semitransparent functional layer appears golden when viewed in reflected light, both from the back and from the front, and when viewed in transmitted light, both from the back and from the front, bluish appears.
- second semitransparent metallic layer at least partially present in a greater layer thickness than the first semitransparent metallic layer
- the security element has the following layer structure in order:
- second semitransparent metallic layer at least partially present in a greater layer thickness than the first semitransparent metallic layer
- the layer thickness of the second semitransparent metallic layer is preferably at least partially 1.25 to 3 times, particularly preferably 1.5 to 2 Times as high as the layer thickness of the first semitransparent metallic layer.
- a security element according to paragraph 13 wherein the one semitransparent metallic layer is an Al layer, the further semitransparent metallic layer is a Cr layer, and the dielectric layer is a Si0 2 layer. 15. (Preferred embodiment) A security element according to any one of paragraphs 1 to 14, wherein the security element is a (endless) strip / (endless) thread or a patch or label.
- a security element according to one of the paragraphs 1 to 15, wherein between the transparent carrier substrate and the semitransparent functional layer an embossing lacquer layer is present which in particular has a relief structure forming a diffractive structure and / or a relief structure forming a micromirror arrangement.
- Data carrier according to paragraph 17, 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.
- a method for producing a security element for securing value documents comprising a transparent carrier substrate and a first semitransparent functional layer having a multilayer structure comprising a first semitransparent metallic layer, a second semitransparent metallic layer and one between the first and second the second semi-transparent metallic layer disposed dielectric layer, wherein the second semitransparent metallic layer at least partially in a larger Layer thickness than that of the first semitransparent metallic layer, the method comprising the following steps:
- the layer thickness of the second semitransparent metallic layer is preferably at least partially 1.25 to 3 times, particularly preferably 1.5 to 2 times as high as the layer thickness of the first semitransparent metallic layer.
- the value document referred to in the present description can be a banknote, in particular a paper banknote, a banknote or composite film banknote, a share, a bond, a certificate, a coupon, a check, a high-quality admission ticket, but also an identification card, such as a credit card, a bank card, a cash card, an authorization card, an identity card or pass personalization page act.
- a viewing in reflected light is in the sense of this invention an illumination of the security element from one side and a view of the security element from the same side, preferably at a viewing angle of the security element of about 90 °. A reflection in reflected light is thus present, for example, when the front of the security element is illuminated and also viewed.
- a viewing angle-dependent color impression in reflected light means that viewing the security element in reflected light at a viewing angle of approximately 90 ° results in a certain optically perceptible color and at a viewing angle of approximately 20 ° to 40 ° results in a further optically perceptible color ,
- a reflection in the transmitted light is in the sense of this invention an illumination of a security element from one side and a view of the security element from another side, in particular the opposite side.
- a reflection in transmitted light is thus, for example, when the back of the security element illuminated and the front of the security element is considered. The light thus shines through the security element.
- the fiction, contemporary security element can be present as a patch or label, as (endless) strip or as (endless) thread.
- the data carrier substrate of the data carrier to be equipped with the security element according to the invention is in particular a paper substrate or a paper-like substrate, a polymer substrate, a paper / film / paper composite substrate or a film / paper / film composite substrate.
- a value document or security paper provided with a window area can be used, for example, by means of a existing recess within the paper layer (s) are generated.
- the paper layer can be made transparent by means of a suitable liquid, for example by means of aqueous sulfuric acid solution, within a certain range.
- a window region can be produced, for example, by means of congruent recesses in the opaque printed layers applied to the front and back of the polymer substrate.
- the semitransparent functional layer has different hues when viewed in reflected light on the one hand and when viewed in transmitted light on the other hand.
- the two different shades are e.g. Complementary colors.
- Such a semitransparent functional layer is based e.g. on a multi-layered structure with two semitransparent metallic layers and a dielectric layer arranged between the two semitransparent metallic layers.
- Such 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. known from WO 2011/082761 AI.
- the following description relates in particular to the variant according to which the two semitransparent metallic layers are each based on the same metal.
- Suitable multi-layered structures with two semitransparent metallic layers and a dielectric layer arranged between the two semitransparent metallic layers typically have the following physical properties:
- the two semitransparent metallic layers are preferably selected from Al or Ag; the dielectric layer is in particular a SiC layer; in the case where each of the two semitransparent metallic 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 SiC 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 particularly preferably in a range of 210 nm to 260 nm, wherein the ranges of 80 nm to 100 nm and from 210 nm to 240 nm, especially for the provision of a gold / blue color change particularly preferred;
- the respective preferred layer thickness is in a range of 15 nm to 25 nm; the SiC 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 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 abovementioned multi-layered layer structures not only make it possible to produce a semitransparent functional layer which appears gold-colored when viewed in reflected light and shows a blue hue when viewed in transmitted light, but further color changes can be produced depending on the choice of the layer thickness, in particular of the dielectric layer, e.g.
- the security element according to the invention has a first semitransparent functional layer with a multilayer structure with a first semitransparent functional layer. a transparent metallic layer, a second semitransparent metallic layer and a dielectric layer arranged between the first and the second semitransparent metallic layer, wherein the semitransparent functional layer is such that the second semitransparent metallic layer at least partially has a greater layer thickness than the first semitransparent metallic layer is present. It is preferred that the layer thickness of the second semitransparent metallic layer is 1.5 to 2 times as high as the layer thickness of the first semitransparent metallic layer.
- the security element according to the invention is such that the transparent carrier substrate has, in addition to the first semitransparent functional layer, a second semitransparent functional layer obtainable by means of an effect pigment composition, wherein the second semitransparent functional layer, viewed from incident light, both from the rear side , as well as from the front appears in the first, visually recognizable color and when viewed in transmitted light, both from the back and from the front appears in the third, visually recognizable color.
- Printed layers based on an effect pigment composition which, when viewed in incident light, shows a different color than when viewed in transmitted light, in particular a gold / blue color change
- the pigments preferably have a longest dimension from end-to-end ("longest dimension of edge length ") range from 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
- the transition metal is preferably Ag.
- the aspect ratio (ie the ratio of the longest end-to-end dimension relative to the thickness) is preferably at least 1.5, in particular in the range of 1
- the ratio of binder to metal pigment is preferably below 10: 1, more preferably below 5: 1, depending on the choice of aspect ratio of the pigment, its longest end-to-end dimension, and the setting of the pigment Pigment / binder ratio, the color can be adjusted in transmission and the color when viewed in reflection (eg, blue in transmission and silver, gold, bronze, copper or violet in reflection, violet, magenta, etc.). Pink, green or brown i n transmission and different colors in reflection, which depend on the choice of pigment / binder ratio).
- Example 4 shows a color with gold / violet color change
- Example 5 a color with green-gold / magenta color change
- Example 7 a color with violet / green color change
- Example 8 a color with silver / opaque color change.
- the security element according to the invention has the following layer sequence:
- a) transparent carrier substrate e.g. Polyethylene terephthalate (PET) film
- PET Polyethylene terephthalate
- embossing lacquer layer which has, in particular, a relief structure forming a diffractive structure and / or a relief structure forming a micromirror arrangement
- a first semitransparent metallic layer e.g. Aluminum
- a dielectric layer eg S1O2
- a second semitransparent metallic layer for example aluminum, which is present at least partially in a greater layer thickness than that of the first semitransparent metallic layer.
- an adhesive layer e.g. a heat seal coating suitable for bonding the security element to a data carrier, e.g. a value document, is suitable.
- the security element according to the invention has the following layer sequence:
- A) transparent carrier substrate e.g. Polyethylene terephthalate (PET) film;
- PET Polyethylene terephthalate
- an embossing lacquer layer which has, in particular, a relief structure forming a diffractive structure and / or a relief structure forming a micromirror arrangement;
- the first semitransparent functional layer has the following layers:
- a first semitransparent metallic layer e.g. Aluminum
- a dielectric layer e.g. S1O2;
- a second semitransparent metallic layer e.g. Aluminum, which is present in a greater layer thickness than that of the first semitransparent metallic layer
- the second semitransparent functional layer C2) can be obtained by printing technology by means of the above-described effect pigment composition known from WO 2011/064162 A2;
- an adhesive layer for example a heat-seal coating, which is suitable for bonding the security element to a data carrier, for example a value document.
- the first semitransparent functional layer mentioned in the above variants may alternatively be an Ag / SiO 2 / Ag structure instead of an Al / SiO 2 / Al structure.
- the order of layers can be changed.
- the semitransparent metallic layer of high layer thickness can first be arranged on the carrier substrate, followed by the dielectric layer and finally the further metallic layer of small layer thickness.
- Suitable multi-layered structures with two semitransparent metallic layers and a dielectric layer arranged between the two semitransparent metallic layers typically have the following physical properties:
- the one semitransparent metallic layer which has a higher layer thickness with respect to the further semitransparent metallic layer, is preferably selected from Al or Ag, particularly preferred is an Al layer; the dielectric layer is in particular a Si0 2 layer;
- the further semitransparent metallic layer is preferably a Cr layer
- the preferred layer thickness is in a range of 5 nm to 15 nm; the Si0 2 dielectric layer preferably has a layer thickness in a range of 50 nm to 700 nm; the Cr layer has a preferred layer thickness in a range of 3 nm to 7 nm, particularly preferably a layer thickness of about 5 nm. Due to the fact that the two semitransparent metallic layers are based on different metals, preferably Al and Cr, the layer build-up when viewing the front side in incident light (ie 90 °) on the one hand, and on the other hand when viewing the rear side in incident light (ie 90 °) different colors. In addition, the layer structure when viewed in transmitted light has another color. In addition, the layer structure when viewing the front and / or the back in reflected light shows a color impression that is viewing angle dependent.
- a three-layer structure AI (about 12nm) / S1O2 (about 220nm) / Cr (about 5nm), for example, leads to the following color impressions:
- the color impressions can be changed in a simple manner, for example:
- the above security element has the following layer sequence:
- a) transparent carrier substrate eg polyethylene terephthalate (PET) film
- PET polyethylene terephthalate
- embossing lacquer layer which has, in particular, a relief structure forming a diffractive structure and / or a relief structure forming a micromirror arrangement
- a semi-transparent metallic layer e.g. Aluminum or silver, preferably aluminum, which has a greater layer thickness relative to the further semitransparent metallic layer;
- a dielectric layer e.g. S1O2;
- an adhesive layer e.g. a heat seal coating suitable for bonding the security element to a data carrier, e.g. one
- the layer sequence may also be a, b, e, d, c, f, i. the Al layer (or Ag layer) and the Cr layer are present in a mutually exchanged form.
- FIG. 2 shows a further security element according to the invention
- Figure 3 is yet another inventive security element.
- 1 shows a document of value, namely a banknote, with a window area and a security element applied to the value document substrate in the window area.
- the window region of the value document is formed by a recess 2, for example, produced by punching in the paper layer 1.
- the security element has the following layers:
- a carrier substrate 7 e.g. a PET (polyethylene terephthalate) film;
- an aluminum metallization 6 with comparatively small layer thickness, e.g. 5 to 15 nanometers;
- a SiCh layer 5 with a layer thickness e.g. from 210 to 240 nanometers; d) an aluminum metallization 4 with comparatively high layer thickness, e.g. 15 to 30 nanometers;
- an adhesive layer 3 e.g. a heat seal coating.
- the aluminum metallization 4 with comparatively high layer thickness represents the front side of the semitransparent functional layer comprising the layers 4, 5, and 6.
- the aluminum metallization 6 with a comparatively small layer thickness represents the rear side of the semitransparent functional layer comprising the layers 4, 5, and 6.
- the block arrow 8 shows the viewing of the front of the security element. The observer perceives the security element when viewing the front of the security element in the reflected light in silver color.
- the block arrow 9 shows the viewing of the back of the security element. The observer perceives the security element in golden color when viewing the rear side of the security element in reflected light.
- the security element appears when viewed in transmitted light, both from the front, as well as from the back, in the color blue.
- the security element comprising layers 3 to 7 shown in FIG. 1 can additionally have an embossing lacquer layer, eg a UV lacquer, between the aluminum metallization 6 and the carrier substrate 7, in particular a relief structure forming a diffractive structure and / or a micromirror arrangement contains forming relief structure.
- FIG. 2 shows a security element according to the invention in accordance with a further exemplary embodiment.
- the security element has the following layers:
- a carrier substrate e.g. a PET (polyethylene terephthalate) film
- an aluminum metallization 11 having a layer thickness e.g. from 5 to 15 nanometers;
- the aluminum metallizations 13 and 14, which together form a metallization with a comparatively high layer thickness, represent the front side of the semitransparent functional layer comprising the layers 11, 12, 13 and 14.
- the aluminum metallization 11 represents the rear side of the semitransparent functional layer comprising the layers 11, 12, 13 and 14.
- the block arrows 15 and 16 show the viewing of the front of the security element.
- the observer perceives the security element when viewing the front of the security element in incident light at the point of the block arrow 15 in silver color.
- the viewer takes the Security element when viewing the front of the security element in incident light at the point of the block arrow 16 in true golden.
- the block arrows 17 and 18 show the viewing of the back of the security element.
- the viewer perceives the security element when viewing the back of the security element in incident light both at the point of the block arrow 17, as well as in the place of the block arrow 18 in golden color.
- the security element appears when viewed in transmitted light, both from the front, as well as from the back, in the color blue, namely at all points of the block arrows 15, 16, 17 and 18th
- the security element may have, above the aluminum metallizations 13 and 14, an adhesive layer, in particular a heat-seal coating, for bonding the security element to a value-document substrate.
- the security element comprising layers 10 to 14 shown in FIG. 2 may additionally comprise between the aluminum metallization 11 and the substrate substrate 10 an embossing lacquer layer, e.g. a UV varnish having, in particular, a structure forming a diffractive structure relief structure and / or a micromirror arrangement forming relief structure.
- an embossing lacquer layer e.g. a UV varnish having, in particular, a structure forming a diffractive structure relief structure and / or a micromirror arrangement forming relief structure.
- FIG. 3 shows a security element according to the invention according to a further exemplary embodiment, which has the following layer sequence:
- PET polyethylene terephthalate
- both Bl a first semitransparent functional layer comprising the layers 20, 21 and 22, and B2) a second comprising the layer 23 Semitransparent functional layer in juxtaposition, ie be arranged in the present case in adjacency to each other, wherein
- the first semitransparent functional layer has the following layers:
- SiCV layer 21 having a layer thickness e.g. from 210 to 240 nanometers;
- Blc a comparatively thick aluminum metallization 22 with a layer thickness, e.g. from 15 to 30 nanometers;
- the second semitransparent functional layer B2) is technically available by means of the above-described, known from WO 2011/064162 A2 effect pigment composition and appears in incident light gold and blue in transmitted light.
- the aluminum metallization 22 represents the front of the security element.
- the aluminum metallization 20 represents the back of the security element.
- the block arrows 24 and 25 show the viewing of the front of the security element. The viewer perceives the security element when viewing the front of the security element in incident light in the place of the block arrow 24 in silver color. Furthermore, the observer perceives the security element in the incident light at the location of the block arrow 25 in golden color when viewing the front of the security element.
- the block arrows 26 and 27 show the viewing of the back of the security element.
- the observer perceives the security element when viewing the back of the security element in incident light both at the point of the block arrow 26, as well as in the place of the block arrow 27 in golden color.
- the security element can above the aluminum metallization 22 and the effect pigment layer 23 an adhesive layer, in particular a
- a heat seal coating for bonding the security element to a value document substrate is provided.
- the security element shown in FIG. 3 may additionally have an embossing lacquer layer, for example, between the aluminum metallization 20 and / or the effect pigment layer 23 on the one hand, and the carrier substrate 19 on the other hand.
- a UV varnish in particular a diffractive
- Structure-forming relief structure and / or a micromirror arrangement forming relief structure contains.
- aluminum was selected to produce the semi-transparent metallic layer.
- aluminum e.g. Silver can be used.
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- Manufacturing & Machinery (AREA)
- Business, Economics & Management (AREA)
- Accounting & Taxation (AREA)
- Finance (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
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- Credit Cards Or The Like (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102015014505.3A DE102015014505A1 (de) | 2015-11-10 | 2015-11-10 | Sicherheitselement, Verfahren zum Herstellen desselben und mit dem Sicherheitselement ausgestatteter Datenträger |
PCT/EP2016/001843 WO2017080641A1 (de) | 2015-11-10 | 2016-11-08 | Sicherheitselement, verfahren zum herstellen desselben und mit dem sicherheitselement ausgestatteter datenträger |
Publications (2)
Publication Number | Publication Date |
---|---|
EP3374197A1 true EP3374197A1 (de) | 2018-09-19 |
EP3374197B1 EP3374197B1 (de) | 2022-04-20 |
Family
ID=57345853
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP16797741.2A Active EP3374197B1 (de) | 2015-11-10 | 2016-11-08 | Sicherheitselement, verfahren zum herstellen desselben und mit dem sicherheitselement ausgestatteter datenträger |
Country Status (6)
Country | Link |
---|---|
EP (1) | EP3374197B1 (de) |
CN (1) | CN108349290B (de) |
AU (1) | AU2016352335B2 (de) |
DE (1) | DE102015014505A1 (de) |
MX (1) | MX2018005812A (de) |
WO (1) | WO2017080641A1 (de) |
Families Citing this family (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AU2019369033B2 (en) | 2018-10-25 | 2024-10-31 | Basf Se | Compositions, comprising silver nanoplatelets |
US11945254B2 (en) | 2019-01-21 | 2024-04-02 | Basf Se | Security element |
CN113272087B (zh) * | 2019-01-29 | 2024-04-19 | 巴斯夫欧洲公司 | 安全元件 |
CN113811409A (zh) | 2019-05-06 | 2021-12-17 | 巴斯夫欧洲公司 | 包含银纳米片的组合物 |
KR20220024567A (ko) * | 2019-07-15 | 2022-03-03 | 제이티 인터내셔널 소시에떼 아노님 | 고광택 은 투명 무늬 |
DE102019005551A1 (de) * | 2019-08-07 | 2021-02-11 | Giesecke+Devrient Currency Technology Gmbh | Herstellverfahren für ein Sicherheitspapier und damit erhältliches Sicherheitspapier |
DE102019006977A1 (de) * | 2019-10-08 | 2021-04-08 | Giesecke+Devrient Currency Technology Gmbh | Sicherheitselement- Transfermaterial, Verfahren zum Herstellen desselben und Verwendung |
CN110767075B (zh) * | 2019-12-05 | 2022-04-08 | 南方科技大学 | 一种基于金属微纳米网络的柔性防伪层、其制备方法和用途 |
WO2021213942A1 (en) | 2020-04-23 | 2021-10-28 | Basf Se | Compositions, comprising platelet-shaped transition metal particles |
CN117203007A (zh) | 2021-02-03 | 2023-12-08 | 巴斯夫欧洲公司 | 包含银纳米片的组合物 |
CN115230277A (zh) * | 2021-04-25 | 2022-10-25 | 中钞特种防伪科技有限公司 | 薄膜元件、透明防伪元件、及数据载体 |
CN117321151A (zh) | 2021-05-12 | 2023-12-29 | 巴斯夫欧洲公司 | 包含片状过渡金属颗粒的组合物 |
EP4423176A1 (de) | 2021-10-26 | 2024-09-04 | Basf Se | Verfahren zur herstellung von interferenzelementen |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10207622A1 (de) * | 2002-02-22 | 2003-09-04 | Giesecke & Devrient Gmbh | Sicherheitsdokument und Sicherheitselement für ein Sicherheitsdokument |
US7161738B2 (en) * | 2003-08-07 | 2007-01-09 | Agra Vadeko Inc. | Secure document of value and method of manufacturing same |
DE102008031325A1 (de) * | 2008-07-02 | 2010-01-07 | Giesecke & Devrient Gmbh | Sicherheitselement sowie Verfahren zu seiner Herstellung |
KR101830991B1 (ko) | 2009-11-27 | 2018-02-21 | 바스프 에스이 | 보안 부재 및 홀로그램을 위한 코팅 조성물 |
DE102009058243A1 (de) * | 2009-12-14 | 2011-06-16 | Giesecke & Devrient Gmbh | Dünnschichtelement mit Mehrschichtstruktur |
-
2015
- 2015-11-10 DE DE102015014505.3A patent/DE102015014505A1/de not_active Withdrawn
-
2016
- 2016-11-08 EP EP16797741.2A patent/EP3374197B1/de active Active
- 2016-11-08 CN CN201680061934.3A patent/CN108349290B/zh active Active
- 2016-11-08 WO PCT/EP2016/001843 patent/WO2017080641A1/de active Application Filing
- 2016-11-08 MX MX2018005812A patent/MX2018005812A/es unknown
- 2016-11-08 AU AU2016352335A patent/AU2016352335B2/en active Active
Also Published As
Publication number | Publication date |
---|---|
AU2016352335B2 (en) | 2019-09-19 |
EP3374197B1 (de) | 2022-04-20 |
DE102015014505A1 (de) | 2017-05-11 |
AU2016352335A1 (en) | 2018-05-31 |
CN108349290A (zh) | 2018-07-31 |
CN108349290B (zh) | 2019-10-25 |
MX2018005812A (es) | 2018-08-01 |
WO2017080641A1 (de) | 2017-05-18 |
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