EP3230079B1 - Mehrschichtkörper und verfahren zu dessen herstellung - Google Patents

Mehrschichtkörper und verfahren zu dessen herstellung Download PDF

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Publication number
EP3230079B1
EP3230079B1 EP15816116.6A EP15816116A EP3230079B1 EP 3230079 B1 EP3230079 B1 EP 3230079B1 EP 15816116 A EP15816116 A EP 15816116A EP 3230079 B1 EP3230079 B1 EP 3230079B1
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EP
European Patent Office
Prior art keywords
layer
region
carrier film
decorative
grid
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.)
Active
Application number
EP15816116.6A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP3230079A1 (de
Inventor
Andreas Schilling
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
OVD Kinegram AG
Original Assignee
OVD Kinegram AG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by OVD Kinegram AG filed Critical OVD Kinegram AG
Priority to HRP20181718TT priority Critical patent/HRP20181718T1/hr
Priority to RS20181117A priority patent/RS57819B1/sr
Priority to PL15816116T priority patent/PL3230079T3/pl
Priority to SI201530456T priority patent/SI3230079T1/sl
Publication of EP3230079A1 publication Critical patent/EP3230079A1/de
Application granted granted Critical
Publication of EP3230079B1 publication Critical patent/EP3230079B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B42BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
    • B42DBOOKS; 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
    • B42D25/00Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof
    • B42D25/30Identification or security features, e.g. for preventing forgery
    • B42D25/36Identification or security features, e.g. for preventing forgery comprising special materials
    • B42D25/373Metallic materials
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B42BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
    • B42DBOOKS; 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
    • B42D25/00Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof
    • B42D25/20Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof characterised by a particular use or purpose
    • B42D25/29Securities; Bank notes
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B42BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
    • B42DBOOKS; 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
    • B42D25/00Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof
    • B42D25/20Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof characterised by a particular use or purpose
    • B42D25/23Identity cards
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B42BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
    • B42DBOOKS; 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
    • B42D25/00Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof
    • B42D25/20Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof characterised by a particular use or purpose
    • B42D25/24Passports
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B42BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
    • B42DBOOKS; 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
    • B42D25/00Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof
    • B42D25/30Identification or security features, e.g. for preventing forgery
    • B42D25/324Reliefs
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B42BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
    • B42DBOOKS; 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
    • B42D25/00Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof
    • B42D25/30Identification or security features, e.g. for preventing forgery
    • B42D25/328Diffraction gratings; Holograms
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B42BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
    • B42DBOOKS; 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
    • B42D25/00Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof
    • B42D25/30Identification or security features, e.g. for preventing forgery
    • B42D25/36Identification or security features, e.g. for preventing forgery comprising special materials
    • B42D25/364Liquid crystals
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B42BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
    • B42DBOOKS; 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
    • B42D25/00Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof
    • B42D25/30Identification or security features, e.g. for preventing forgery
    • B42D25/36Identification or security features, e.g. for preventing forgery comprising special materials
    • B42D25/378Special inks
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B42BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
    • B42DBOOKS; 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
    • B42D25/00Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof
    • B42D25/40Manufacture
    • B42D25/405Marking
    • B42D25/41Marking using electromagnetic radiation
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B42BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
    • B42DBOOKS; 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
    • B42D25/00Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof
    • B42D25/40Manufacture
    • B42D25/45Associating two or more layers
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B42BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
    • B42DBOOKS; 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
    • B42D25/00Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof
    • B42D25/40Manufacture
    • B42D25/45Associating two or more layers
    • B42D25/465Associating two or more layers using chemicals or adhesives
    • B42D25/47Associating two or more layers using chemicals or adhesives using adhesives
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B44DECORATIVE ARTS
    • B44CPRODUCING DECORATIVE EFFECTS; MOSAICS; TARSIA WORK; PAPERHANGING
    • B44C3/00Processes, not specifically provided for elsewhere, for producing ornamental structures
    • B44C3/02Superimposing layers
    • B44C3/025Superimposing layers to produce ornamental relief structures
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B44DECORATIVE ARTS
    • B44FSPECIAL DESIGNS OR PICTURES
    • B44F1/00Designs or pictures characterised by special or unusual light effects
    • B44F1/02Designs or pictures characterised by special or unusual light effects produced by reflected light, e.g. matt surfaces, lustrous surfaces

Definitions

  • the invention relates to a multilayer body and a method for its production. Furthermore, the invention relates to a security element with such a multilayer body and a security document with such a security element.
  • Multi-layer bodies are frequently used as security elements for securing counterfeiting and authentication of security documents, banknotes, product packaging and the like. These are systems of several layers, for example printed layers, relief structures, reflection layers and the like. In their entirety, these layers form decorative, informative and / or functional motifs and structures, whereby the layers complement each other.
  • Register accuracy is to be understood as a positional accuracy of two or more elements and / or layers relative to one another. In this case, the register accuracy should move within a predetermined tolerance and be as small as possible. At the same time, register accuracy of multiple elements and / or layers relative to one another is an important feature in order to increase counterfeit security.
  • the positionally accurate positioning can be done in particular by means of optically detectable registration marks or register marks. These register marks or register marks can either represent special separate elements or regions or layers or themselves be part of the elements or regions or layers to be positioned.
  • the document DE 10 2009 032 697 B3 discloses a multi-layer body according to the preamble of claim 1.
  • the object of the present invention is to provide a multi-layer body and a method for its production, which has a pleasing visual appearance with simple production. It is a further object of the present invention to provide visually appealing security elements and security documents based on such multilayer bodies. According to the invention this object is achieved with a multilayer body according to claim 1, a method according to claim 30 and 31, a security element according to claim 37 and a security document according to claim 38.
  • a multilayer body obtained in this way may find application as a security element for authenticating security documents such as banknotes, securities, identity documents, driver's licenses, credit cards, passport or visa documents.
  • security documents such as banknotes, securities, identity documents, driver's licenses, credit cards, passport or visa documents.
  • purely decorative applications are conceivable where the multi-layer body would not have to function as a security element, but only as a visually attractive feature.
  • a security element may be, for example, a laminating film, an embossing film, an adhesive film or the like, from which the multilayer body can be transferred to an object. Also security stripes, security threads, security windows or data pages from z. As polycarbonate or the like for integration into documents are conceivable.
  • both the decorative and the reflective layer can be applied with a certain registration error, that is to say with a certain positional tolerance or positional inaccuracy relative to one another, which is not visually noticeable on account of this masking.
  • a layer is understood to mean a planar structure.
  • a layer may be homogeneous or in turn may have several full-surface or partial, have in particular rastered layers.
  • a grid is understood to mean a sequence of transparent and opaque areas, which may be regular or irregular, in particular stochastic, and may also carry additional, in particular non-stochastic information.
  • the opaque areas are raster elements of different shapes, eg. For example, halftone dots or gridlines or other graphic motifs. Between the raster elements each transparent areas are arranged.
  • a grid is preferably not resolvable by the eye. But there are also coarser grid possible. In particular, attractive continuous transitions between z. B. diffractive metallic areas and printed areas are created.
  • An overlap of two regions is understood to mean that at least one straight line extending parallel to the surface normal on a visible surface of the multilayer body exists that intersects both regions.
  • An opaque region is a region having a transmissivity of less than 30%, preferably less than 20%, more preferably less than 10%.
  • a transparent region is a region having a transmissivity of more than 30%, preferably more than 50%, particularly preferably more than 70%.
  • the decorative layer preferably comprises at least one dye, a pigment, a metal layer, an effect pigment, a thin-film layer system, a magnetic thin-film layer system, and / or a cholesteric liquid crystal system.
  • the said components of the decorative layer can also be combined to obtain such complex decors that are difficult to imitate and ensure high security against counterfeiting and / or high visual appeal.
  • the third area forms at least one motif, an image, a symbol, a logo and / or an alphanumeric character.
  • the third area advantageously also have individualized and / or personalized information, such.
  • individualized and / or personalized information such.
  • the decorative layer is or comprises a single-color or multi-color raster or vector graphic.
  • a layer thickness of the decorative layer is preferably from 5 nm to 500 ⁇ m, preferably from 50 nm to 100 ⁇ m, particularly preferably from 500 nm to 50 ⁇ m. It is further preferred if the reflection layer is formed at least partially, in particular in the first region, as a metal layer, preferably of Al, Cr, Cu, Ag, Au or alloys / combinations thereof.
  • the metals mentioned can also be combined with each other to realize more complex visual impressions
  • the first region is formed as a grid of first partial regions in which the reflection layer is present, and second partial regions in which the reflection layer is absent.
  • the first region is still transparent due to the screening in the sense of the above definition.
  • screening additional graphic effects can be realized.
  • the decorative layer is visible through the reflective layer, at the same time by the screening creates a slightly metallic impression.
  • the grid is a dot or line grid. But it can also find any grid use, z.
  • the points or lines of the grid can be arranged regularly, vary according to a predetermined function or be stochastically distributed.
  • the halftone dots of a dot matrix can in the simplest case be circular, but also have any other geometries. Also microstructured information, such as texts or logos can be inscribed in the grid points.
  • a screen ruling of the raster is below the resolution limit of the human eye and in particular from 5 .mu.m to 300 .mu.m, preferably from 30 .mu.m to 200 .mu.m.
  • the grid is not to be resolved by the human eye and is merely to be recognized as the decorative layer superimposed effect, for example as a slight metallic impression (with or without additional diffractive optical effects).
  • the degree of transparency varies over the first area, preferably according to a predetermined gradient along at least one spatial direction.
  • the grid opening is in each case the transparent area between two opaque grid elements.
  • the grid width is the distance between two opaque grid elements.
  • the transparency and / or the metallic impression in the first region can be varied, whereby additional, visually appealing effects can be realized.
  • a continuous or stepwise transition between the transparent and the opaque region of Reflective layer can be created or a variation of the metallic impression over the grid time to be realized.
  • the seemingly tactile relief effect z. B. in the form of a free-form surface or lens can be generated by means of diffractive structures, which is designed so that their grid lines substantially follow the contours of the freeform surface, wherein the distance of the grid lines from the central region of the freeform surface continuously changed from the edge.
  • the effect of a seemingly curved free-form surface can also be generated with statistical variation of certain structural parameters, or even with structures that have a constant spacing of the grid lines, but a varying structural depth.
  • first subregions cover 20% to 80%, preferably 30% to 70%, more preferably 20% to 50%, of the area of the first area.
  • the first area still appears to be largely transparent to the human eye.
  • a virtually completely opaque-metallic impression is created only with covers of more than 90%.
  • the decorative layer has at least partially a grid structure which forms a moiré effect with the grid of the reflection layer.
  • the second area completely covers a boundary line between the third and the fourth area.
  • the entire outer contour (the outer contour corresponds to the boundary line) of the decorative layer is covered by the opaque region of the reflective layer, so that any registry errors can be concealed over the entire outer contour.
  • the second region extends at each point of the boundary lines perpendicular to the boundary line by a respective length in the third and the fourth region, wherein the length corresponds to at least the amount of a occurring when creating the decorative layer register tolerance.
  • the register tolerance in one direction or extent is 1 mm (that is, plus / minus 1 mm)
  • that length is 1 mm.
  • this length is 0.2 mm to 2 mm, preferably 0.5 mm to 0.8 mm.
  • HRI high refractive index
  • LRI low refractive index
  • a layer thickness of the reflection layer is 5 nm to 5000 nm, preferably 20 nm to 100 nm.
  • the multilayer body has or comprises at least one replication layer with a surface relief.
  • the replication layer can be arranged directly adjacent to the reflection layer so that the reflection layer can follow the surface relief and enhance its optical effects.
  • This first replication layer is then according to the invention in the viewing direction in front of the decorative layer.
  • This first replication layer can have as a decoration or optical effect a single motif, in particular in the register to other decor areas or even an endless pattern, which can be unregistered or in register with other decor areas.
  • This second replication layer can have as a decoration or optical effect a single motif, in particular in the register to other decor areas or even an endless pattern, which can be unregistered or in register with other decor areas.
  • the motifs and / or patterns of the first and second replication layers may be in register with each other.
  • the surface relief preferably comprises one or more relief structures selected from the group diffractive grating, hologram, blazed grating, linear grating, cross lattice, hexagonal lattice, asymmetric or symmetric lattice structure, retroreflective structure, microlens, microprism, Fresnel lens structure, free-form frieze lens structure, zero-order diffraction structure, moth-eye structure or anisotropic or Isotropic matte structure, or a superposition of two or more of the aforementioned relief structures.
  • the lattice parameters of the diffractive structures can be constant or change continuously; be constant in small subregions, with adjacent ones Subareas have different grid parameters; or be statistically varied. Combinations of the variation of the lattice parameters are also conceivable in the case of the abovementioned overlays, ie, for example, a superposition of a continuously changing structure with a statistically changing structure.
  • a layer thickness of the replication layer is from 50 nm to 50 ⁇ m, preferably from 200 nm to 1 ⁇ m.
  • the carrier foil Before, during or even after application of the multilayer body to an object, for example a security document, the carrier foil can be detached from the remaining layers of the multilayer body, which remaining layers of the multilayer body can thus form a transfer layer, which are transferred to the object or substrate ,
  • the carrier film thus protects and stabilizes the multilayer body before its final application, in particular during its manufacture and during transport.
  • a layer thickness of the carrier film is from 6 ⁇ m to 100 ⁇ m, preferably from 12 ⁇ m to 50 ⁇ m.
  • the multi-layer body comprises a protective layer, in particular of a UV-curing lacquer, of PVC, polyester or an acrylate, which is arranged between the carrier foil and the decorative layer.
  • a protective layer in particular of a UV-curing lacquer, of PVC, polyester or an acrylate, which is arranged between the carrier foil and the decorative layer.
  • such a protective layer preferably remains on the multilayer body when it is applied to an object, where it forms its outer surface.
  • the protective layer can protect the sensitive further layers of the multilayer body from environmental influences, pollution, Protect scratches and the like.
  • This additional protective layer can also be provided with a diffractive surface relief.
  • interesting optical and / or functional effects such.
  • tactile appearing surfaces or dynamic matt gradients, for example, combined with a logo color and thus these effects are combined with advantageous properties of the printing area.
  • Such a combined effect which combines, for example, diffraction with pressure, increases both the visual attractiveness and the security against counterfeiting.
  • a layer thickness of the protective layer of 1 .mu.m to 20 .mu.m, preferably from 3 .mu.m to 10 .mu.m.
  • the multi-layer body has a release layer, in particular of a wax layer and / or a strongly filming acrylate, which is arranged between the carrier film and the protective layer.
  • Such a release layer allows easy and damage-free detachment of the carrier film from the transfer layer during application of the multilayer body or the transfer layer to an object.
  • a layer thickness of the release layer of 5 nm to 1 .mu.m, preferably from 10 nm to 1 .mu.m.
  • the multilayer body preferably has an adhesive layer which is arranged on the side of the reflection layer facing away from the carrier film.
  • This may be a hot melt adhesive, a cold adhesive, an optically or thermally activatable adhesive, a UV-activatable adhesive or the like, which allows a fixation of the multilayer body on an object, such as a security document.
  • a layer thickness of the adhesive layer is from 50 nm to 50 ⁇ m, preferably from 0.5 ⁇ m to 10 ⁇ m.
  • a further reflection layer is provided. It has been found that with a dark background of the object or substrate to which the multilayer body is applied, the optical brilliance of the optical effects of the multilayer body may be reduced in some cases.
  • the further reflection layer now serves to shield the optical effects of the multilayer body against the substrate and, in particular, to deposit a surface which does not reduce the brilliance of the optical effects in the viewing direction, in particular even reinforcing surface.
  • the decorative layer is at least partially applied by printing, in particular by screen printing, gravure, inkjet, intaglio printing or offset printing.
  • the printing methods mentioned can also be combined with one another in order, for example, to produce decorative layers with a plurality of printing layers and complex optical effects.
  • a plurality of same-colored and / or differently colored decorative layers can be printed in exact register with one another in order to be able to produce multicolored motifs.
  • the decorative layer can be applied at least in some areas by painting, casting, dipping and / or steaming.
  • thin film layer systems consisting of several layers.
  • the reflection layer is applied by sputtering, vapor deposition or vapor deposition.
  • the reflection layer is applied by sputtering, vapor deposition or vapor deposition.
  • the reflective layer is partially applied.
  • the reflection layer is first applied over the entire surface and then patterned.
  • the structuring can be done for example by etching.
  • the etchant is selected depending on the composition of the reflection layer and brought into contact only with the areas of the reflection layer to be removed. This can be done for example by partial masking of the reflection layer with an etch resist or by partial printing of the etchant.
  • a multi-layer body designated as a whole by 1 comprises a carrier foil 11 on which a partial metal layer 12 is applied.
  • a partial decorative layer 13 is applied, which in turn is covered over the entire surface of an adhesive layer 14.
  • the carrier film 11 has a release layer 112, a protective layer 113 and a replication layer 114.
  • the carrier film 11 is preferably made of PET, PEN or BOPP and preferably has a layer thickness of 3 .mu.m to 100 .mu.m, particularly preferably from 6 .mu.m to 50 .mu.m.
  • Adjoining the carrier film 11 is the release layer 112, in particular of a wax layer and / or a strongly filming acrylate, which is arranged between the carrier film 11 and the protective layer 113.
  • the release layer 112 enables easy and damage-free detachment of the carrier film 11 from the remaining layers of the multilayer body 1 when the multilayer body 1 is applied to an object.
  • a layer thickness of the release layer is from 5 nm to 1 .mu.m, preferably from 10 nm to 1 .mu.m.
  • the protective layer 113 After peeling off the carrier film 11, the protective layer 113 thus forms the externally accessible surface of the multilayer body 1 and thus protects the sensitive further layers of the multilayer body from environmental influences, soiling, scratches and the like.
  • the protective layer 113 preferably consists of a UV-curing lacquer, PVC, polyester or an acrylate and has a layer thickness of 1 .mu.m to 20 .mu.m, preferably from 3 .mu.m to 10 .mu.m.
  • the replication layer 114 adjoining the protective layer 113 consists of a replication lacquer, preferably of a thermoplastic or UV-curing lacquer, with a layer thickness of 50 nm to 50 ⁇ m, preferably of 200 nm to 1 ⁇ m.
  • a surface relief is introduced.
  • This comprises one or more relief structures selected from the group diffractive grating, hologram, blazed grating, linear grating, cross lattice, hexagonal lattice, asymmetric or symmetric lattice structure, retroreflective structure, microlens, microprism, Fresnel lens structure, free-form frieze lens structure, zero-order diffraction structure, moth-eye structure or anisotropic or isotropic matte structure , or a superposition of two or more of the aforementioned relief structures.
  • the reflection layer 12 is applied to the replication layer 114.
  • This may be formed as a metal layer, preferably made of Al, Cr, Cu, Ag, Au or alloys / combinations thereof.
  • HRI high refractive index
  • a layer thickness of the reflection layer is preferably from 5 nm to 5000 nm, more preferably from 20 nm to 100 nm.
  • the reflection layer 12 has a first region 121 in which it is at least partially transparent, that is to say has a transmissivity of more than 30%. In a second region 122, the reflection layer is opaque, that is, has a transmissivity of less than 30%.
  • the first area 121 is formed as a grid of first partial regions in which the reflection layer is present, and second partial regions in which the reflection layer is absent.
  • the first region 121 is still transparent due to the screening in the sense of the above definition.
  • the screening By screening additional graphic effects can be realized.
  • the decorative layer 13 it is possible for the decorative layer 13 to be visible through the reflection layer 12 in the first region, wherein at the same time the screening produces a slightly metallic impression.
  • the grid is preferably a dot or line grid.
  • a line grid in the form of hatching is preferably a dot or line grid.
  • the points or lines of the grid can be arranged regularly, vary according to a predetermined function or be stochastically distributed.
  • the halftone dots of a dot matrix can in the simplest case be circular, but also have any other geometries. Also microstructured information, such as texts or logos can be inscribed in the grid points.
  • a grid width of the grid is below a resolution limit of the human eye and in particular from 5 .mu.m to 300 .mu.m, preferably from 30 .mu.m to 200 .mu.m.
  • the grid is therefore not resolved by the human eye and is only as the decorative layer 13 superimposed effect, for example, as a slight metallic impression to recognize.
  • the grid width can vary over the first region 121, preferably according to a predetermined gradient along at least one spatial direction. As a result, for example, a continuous or stepwise transition between the transparent 121 and the opaque region 122 of FIG Reflective layer 12 are created or a variation of the metallic impression over the grid are realized away.
  • the metallic areas of the grid cover 20% to 80%, preferably 30% to 70%, more preferably 20% to 50% of the area of the first area 121.
  • the first region 121 still appears transparent to the human eye.
  • a completely opaque-metallic impression is created only with covers of more than 90%.
  • the coverage of the first region 121 by the reflection layer 12 can vary across the first region 121, preferably according to a predetermined gradient along at least one spatial direction.
  • the transparency and / or the metallic impression in the first region 121 can be varied, whereby additional, visually appealing effects can be realized.
  • the decorative layer 13 is applied.
  • This preferably comprises at least one dye, a pigment, a metal layer, an effect pigment, in particular an optically variable printing ink, such as.
  • an OVI® thin film layer system a magnetic thin film layer system, and / or a cholesteric liquid crystal system.
  • the said components of the decorative layer 13 can also be combined to obtain such complex decors that are difficult to imitate and ensure high security against counterfeiting.
  • the decorative layer forms at least a motif, an image, a symbol, a logo and / or an alphanumeric character.
  • These elements can be present individually, but also in combination and can be purely decorative, but also informative, that is, for example, specify the denomination of a banknote or the like.
  • Such decors can be realized, for example, as a single or multi-color raster or vector graphic.
  • To produce the decorative layer 13 are methods, printing, especially screen printing, gravure, inkjet, intaglio printing (intaglio printing) or offset printing, but also the painting, casting, dipping and / or vapor deposition.
  • the aforementioned methods can also be combined with one another in order to produce, for example, decorative layers with a plurality of printing layers and complex optical effects.
  • a layer thickness of the decorative layer is preferably from 5 nm to 500 ⁇ m, preferably from 50 nm to 100 ⁇ m, particularly preferably from 500 nm to 50 ⁇ m.
  • the decorative layer 13 covers the transparent region 121 of the reflection layer 12 and extends beyond it into the opaque region 122.
  • both the decorative layer 13 and the reflective layer 12 can be applied with a certain registration error, that is to say with a certain positional tolerance or positional inaccuracy relative to one another, which does not become noticeable on account of this masking.
  • the opaque region 122 preferably extends along the boundary surface of the decorative layer 13 and covers its boundary line or outer contour.
  • the entire outer contour of the decorative layer 13 is covered by the opaque region 122 of the reflection layer 12, so that any registration errors can be concealed over the entire outer contour.
  • the opaque region 122 extends at each point of these boundary lines perpendicular to the boundary line by a respective length from the boundary line, wherein the length corresponds at least to the amount of a register tolerance occurring when the decoration layer 13 is produced.
  • the opaque region 122 in combination with the relief structure in the replication layer can still be used to generate additional effects.
  • the in Fig. 3 schematically illustrated tilting be achieved, so that when tilting the multi-layer body 1, a reflective zone in the opaque region 122 from inside to outside or vice versa wanders.
  • the decorative layer 13 and the reflective layer 12 are finally covered by the adhesive layer 14, with which the multi-layer body 1 can be mounted on an object.
  • This may be a hot melt adhesive, a cold adhesive, an optically or thermally activatable adhesive or the like.
  • the layer thickness of the adhesive layer is from 50 nm to 50 .mu.m, preferably from 0.5 .mu.m to 10 .mu.m.

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  • Accounting & Taxation (AREA)
  • Finance (AREA)
  • Business, Economics & Management (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Toxicology (AREA)
  • General Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Physics & Mathematics (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Electromagnetism (AREA)
  • General Chemical & Material Sciences (AREA)
  • Laminated Bodies (AREA)
  • Credit Cards Or The Like (AREA)
  • Ink Jet Recording Methods And Recording Media Thereof (AREA)
  • Decoration By Transfer Pictures (AREA)
  • Printing Methods (AREA)
EP15816116.6A 2014-12-10 2015-12-10 Mehrschichtkörper und verfahren zu dessen herstellung Active EP3230079B1 (de)

Priority Applications (4)

Application Number Priority Date Filing Date Title
HRP20181718TT HRP20181718T1 (hr) 2014-12-10 2015-12-10 Višeslojno tijelo i postupak za njegovu proizvodnju
RS20181117A RS57819B1 (sr) 2014-12-10 2015-12-10 Višeslojno telo i postupak za njegovu izradu
PL15816116T PL3230079T3 (pl) 2014-12-10 2015-12-10 Korpus wielowarstwowy i sposób jego wytwarzania
SI201530456T SI3230079T1 (sl) 2014-12-10 2015-12-10 Večslojno telo in postopek njegove izdelave

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102014118366.5A DE102014118366A1 (de) 2014-12-10 2014-12-10 Mehrschichtkörper und Verfahren zu dessen Herstellung
PCT/EP2015/079309 WO2016092040A1 (de) 2014-12-10 2015-12-10 Mehrschichtkörper und verfahren zu dessen herstellung

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EP3230079A1 EP3230079A1 (de) 2017-10-18
EP3230079B1 true EP3230079B1 (de) 2018-08-01

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EP (1) EP3230079B1 (enrdf_load_stackoverflow)
JP (1) JP6731921B2 (enrdf_load_stackoverflow)
KR (1) KR102414589B1 (enrdf_load_stackoverflow)
CN (1) CN107000462B (enrdf_load_stackoverflow)
BR (1) BR112017011175B1 (enrdf_load_stackoverflow)
CA (1) CA2967845C (enrdf_load_stackoverflow)
DE (1) DE102014118366A1 (enrdf_load_stackoverflow)
ES (1) ES2686794T3 (enrdf_load_stackoverflow)
HR (1) HRP20181718T1 (enrdf_load_stackoverflow)
HU (1) HUE040265T2 (enrdf_load_stackoverflow)
LT (1) LT3230079T (enrdf_load_stackoverflow)
PL (1) PL3230079T3 (enrdf_load_stackoverflow)
PT (1) PT3230079T (enrdf_load_stackoverflow)
RS (1) RS57819B1 (enrdf_load_stackoverflow)
SI (1) SI3230079T1 (enrdf_load_stackoverflow)
WO (1) WO2016092040A1 (enrdf_load_stackoverflow)

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Publication number Publication date
KR102414589B1 (ko) 2022-06-29
CN107000462B (zh) 2019-04-23
DE102014118366A1 (de) 2016-06-16
US20170313121A1 (en) 2017-11-02
BR112017011175B1 (pt) 2021-12-28
LT3230079T (lt) 2018-10-10
PT3230079T (pt) 2018-11-13
BR112017011175A2 (pt) 2018-01-02
WO2016092040A1 (de) 2016-06-16
HRP20181718T1 (hr) 2019-01-25
JP2018505790A (ja) 2018-03-01
CA2967845A1 (en) 2016-06-16
KR20170093188A (ko) 2017-08-14
US10792950B2 (en) 2020-10-06
EP3230079A1 (de) 2017-10-18
CA2967845C (en) 2022-11-01
RS57819B1 (sr) 2018-12-31
JP6731921B2 (ja) 2020-07-29
SI3230079T1 (sl) 2018-12-31
CN107000462A (zh) 2017-08-01
PL3230079T3 (pl) 2018-12-31
HUE040265T2 (hu) 2019-02-28
ES2686794T3 (es) 2018-10-19

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