The invention relates to a method for producing a multilayer element (10), in particular a security element for safeguarding security documents, preferably in the form of a hot embossing film, a cold embossing film, or a laminating film, having at least two different color-shifting effects which can be perceived by the human eye and/or a sensor. The method has the following steps: a) providing a pre-material (1, 11), b) applying an absorber layer (2, 12), c) applying a first dielectric layer (3, 13) with a first specified thickness (d1), d) applying a first reflector layer (4, 14), e) applying a second dielectric layer (5, 15) with a second specified thickness (d3), and f) applying at least one primer (6, 17). According to the method, in order to generate the two different color-shifting effects, I) the first reflector layer (14) is removed in a β region (β) such that the first reflector layer (14) is present in an α region (α) and is not present in the β region (β) so that in the α region (α), a first color-shifting effect is provided, and in the β region (β), a second color-shifting effect is provided, wherein the first color-shifting effect differs from the second color-shifting effect, a second reflector layer (7, 16) is applied in step g), and the steps are carried out in the following order: a), b), c), d), e), g), f) or II) the first dielectric layer (13) or the second dielectric layer (15) is structured using a lift-off process such that the first dielectric layer (13) or the second dielectric layer (15) is present in a α region (α) and is not present in a β region (β) or vice versa so that a first color-shifting effect is present in the α region (α) and a second color-shifting effect is present in the β region (β), wherein the first color-shifting effect differs from the second color-shifting effect, and the steps are carried out in the following order: a), b), c), e), d), f).
The invention relates to a multilayer element (10), in particular a security element for safeguarding security documents, having at least two different color-shifting effects which can be perceived by the human eye and/or a sensor. The multilayer element (10) has a pre-material (11), and the multilayer element (10) additionally has the following layers, which are applied onto the replicating layer (15) in the following order in particular: an absorber layer (16), a dielectric layer (17) with a specified thickness, a reflector layer (18), and at least one primer (19). A first asymmetrical microstructure is introduced into the replicating layer (15) in an α region (α) in order to produce a first optically variable effect, and a second asymmetrical microstructure is introduced in a β region (β) in order to produce a second optically variable effect. In order to generate the two different color-shifting effects in the multilayer element (10), the absorber layer (16), the dielectric layer (17), and the reflector layer (18) generate a general color-shifting effect which is superimposed on the first optically variable effect in the α region (α) and on the second optically variable effect in the β region (β) such that a first color-shifting effect is generated in the α region (α) and a second color-shifting effect is generated in the β region (β), the first color-shifting effect differing from the second color-shifting effect.
The invention relates to a security document (1) having a first security element (2) and a surface structure (3) overlapping the first security element in an overlap region (41), wherein the surface structure (3) changes light incident on the security element (2) and/or radiated therefrom such that, in the overlap region (41) and in the comparison region (42), in a first observation situation, light properties (410, 420) with a defined colour and/or brightness difference are visible. The surface structure can have one or more of the following structures: a matt structure (31), micro-prisms (32), micro-lenses (33), linear elevations and/or linear depressions. The first security element can comprise one or more of the following layers: a replication layer with a relief structure, a reflection layer, wherein the reflection layer is arranged on the at least one relief structure. The relief structure can be or comprise a sub-wavelength grating for generating zero-order colour effects, wherein the reflection layer is or comprises a metal layer.
The invention relates to a method for producing a multilayer element and to a multilayer element having a microlens array (60) in a microlens region (6), wherein, in the microlens region, structure-based colour effects are provided in a first region (1) by means of first relief structures (10) and a partial metal layer (100) demetallized by means of second relief structures (20) used as a mask is or has been arranged in a second region (2).
The invention relates to a security document, a method for producing a security document, and a system for producing a security document. The security document (1) comprises an absorption region (30) for forming at least one item of personalised information (3), wherein the security document (1) is processed and/or can be processed in the absorption region (30) in such a way that absorption of light incident on a first side makes the at least one personalised item of information (3) visible. The security document also comprises a first security element (2) having an optically variable effect, wherein, when viewed on the first side, the first security element (2) is located behind the absorption layer (52, 31) and the first security element (2) is located in a first region (20), wherein the first region (20) partially or fully overlaps with the absorption region (30) and, in a background region (21) directly adjacent to the absorption region (30), the first region (20) does not overlap with the absorption region (30) such that, in a second region (22) which is formed at least by a partial region of the absorption region (30) and a directly adjacent partial region of the background region (21), the at least one item of personalised information (3) has a contrast that depends on the angle of vision, in particular a brightness contrast.
The invention relates to a method for producing a multilayer body (1), in particular a laminating film or transfer film, wherein a replication layer (12) is applied to a carrier layer (11), and a first graphic code (21) is Fourier-transformed into a two-dimensional Fourier pattern (23) and the two-dimensional Fourier pattern (23) is binarised in order to obtain a binarised two-dimensional Fourier pattern (24), and the binarised two-dimensional Fourier pattern (24) is transferred to an embossing tool and, by means of the embossing tool, the binarised two-dimensional Fourier pattern (24) is moulded, as an embossed structure, into the replication layer (12) at least partially in a first region.
G07D 7/004 - Testing specially adapted to determine the identity or genuineness of valuable papers or for segregating those which are unacceptable, e.g. banknotes that are alien to a currency using digital security elements, e.g. information coded on a magnetic thread or strip
G07D 7/0043 - Testing specially adapted to determine the identity or genuineness of valuable papers or for segregating those which are unacceptable, e.g. banknotes that are alien to a currency using digital security elements, e.g. information coded on a magnetic thread or strip using barcodes
The invention relates to a laminate (1) comprising a security element (20) which is incorporated by lamination between a recording layer (11) and a cover layer (12), an adhesive layer (25) adhering to the recording layer (11) and a release layer (21) adhering to the cover layer (12), or the adhesive layer (25) adhering to the cover layer (12) and the release layer (21) adhering to the recording layer (11), and the laminate (1) being designed such that the adhesive layer (25) of the security element (20) can be split by a tensile force exerted by the recording layer (11) and the cover layer (12) onto the security element (20). The invention also relates to a method for producing a laminate (1).
B42D 25/47 - Associating two or more layers using chemicals or adhesives using adhesives
B32B 37/18 - Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers with all layers existing as coherent layers before laminating involving the assembly of discrete sheets or panels only
B42D 25/351 - Translucent or partly translucent parts, e.g. windows
8.
FUNCTIONAL ELEMENT, A METHOD FOR PRODUCING A FUNCTIONAL ELEMENT, AND A PRODUCT
The invention relates to a functional element (2) comprising at least one first relief structure (13) in at least one first region (21) and at least one metal layer (12) arranged in at least one partial region of the at least one first relief structure (13), and optionally a preferably polymeric dielectric layer on the side of the metal layer (12) which faces the observer, the at least one first relief structure (13) having a periodic variation in the x- and y-directions of elevations and depressions, the elevations succeeding one another with a grating period Λ which is smaller than a wavelength of the light visible to the human eye, the minima of the depressions defining a base, and the at least one first relief structure (13) having a relief depth t. Furthermore, the invention relates to a method for producing or modifying a surface, and to a product (1) comprising such a functional element (2).
The invention relates to a method for producing a multilayer body (1) and to a multilayer body (1). The method for producing a multilayer body (1) here comprises the following steps: - providing a carrier layer (10); - applying a first replicating lacquer layer (11) to the carrier layer (10); - moulding into the first replicating lacquer layer (11a) a multiplicity of micro-lenses (12) arranged in the form of a grid, - applying at least one layer (14) to be structured to the side of the carrier layer (10) opposite from the micro-lenses (12) arranged in the form of a grid; - structuring the at least one layer (14) to be structured by using a highly resolved separate mask (23) in such a way that a multiplicity of micro-images (15) arranged in the form of a grid are formed by removing in certain regions the at least one layer (14) to be structured. The invention also provides a multilayer body (1), comprising a carrier layer (10) and, applied to the carrier layer (10), a first replicating lacquer layer (11a), into which a multiplicity of micro-lenses (12) arranged in the form of a grid have been moulded, and comprising a multiplicity of micro-images (15), arranged in the form of a grid, on the side of the carrier layer (10) opposite from the multiplicity of micro-lenses (12) arranged in the form of a grid.
The invention relates to a method for authenticating a security document by means of at least one device, wherein the method involves the following steps being performed, in particular in the following order: a) providing the security document comprising at least one first security element and at least one second security element; b) providing the at least one device, wherein the at least one device comprises at least one sensor; c) capturing first optical information of the at least one first security element by means of the at least one sensor of the at least one device during a first illumination, wherein at least one first dataset specifying this information is generated therefrom; d) capturing second optical information of the at least one second security element by means of the at least one sensor of the at least one device during a second illumination, wherein at least one second dataset specifying this information is generated therefrom; e) capturing third optical information of the at least one second security element by means of the at least one sensor of the at least one device during a third illumination, wherein at least one third dataset specifying this information is generated therefrom, the second illumination differing from the third illumination; f) checking the authenticity of the security document and/or of the second security element at least on the basis of the at least one second dataset and the at least one third dataset.
G07D 7/00 - Testing specially adapted to determine the identity or genuineness of valuable papers or for segregating those which are unacceptable, e.g. banknotes that are alien to a currency
G07D 7/17 - Apparatus characterised by positioning means or by means responsive to positioning
G07D 7/0043 - Testing specially adapted to determine the identity or genuineness of valuable papers or for segregating those which are unacceptable, e.g. banknotes that are alien to a currency using digital security elements, e.g. information coded on a magnetic thread or strip using barcodes
The invention relates to a see-through security element (2), a security document (1), and a method for producing a see-through security element (2). The see-through security element has a first element with one or more transparent first sub-regions and at least one reflective second sub-region. The see-through security element has a second element with one or more first sub-regions, each of which forms a color filter during transmission, said color filter being calibrated for a respective assigned color, and at least one second sub-region, which is designed to be colorless, in particular colorlessly transparent, or which forms a color filter during transmission and/or reflection, said color filter being calibrated for a color that is not assigned to any of the one or more first sub-regions of the second element. The first sub-regions of the first element and the first sub-regions of the second element at least partly overlap.
The invention relates to a microfluidic array, a method for manufacturing same, a measuring system comprising the microfluidic array, and a use thereof.
The invention relates to a process for producing a multilayer article, in particular a laminate article, preferably a security document, preferably an integrated card, comprising the following steps preferably in any desired sequence: a) providing a first outer ply which comprises polyvinyl chloride and is transparent, especially in the wavelength range visible to the human eye, b) providing a second outer ply which comprises polyvinyl chloride and is transparent, especially in the wavelength range visible to the human eye, c) providing one or more intermediate plies, wherein the one or more intermediate plies are arranged between the first outer ply and the second outer ply and wherein at least one intermediate ply of the one or more intermediate plies comprises polycarbonate, d) joining, in particular laminating, the one or more intermediate plies, the first outer ply and the second outer ply. The invention further relates to a multi-layered article produced in particular by means of the process.
The invention relates to a method for producing a film intermediate product (1), to a film intermediate product (1), and to a product that is produced according said method. The film intermediate product (1) is formed by applying one or more film elements (311 to 314) which are formed in each case from a cut-out of one or more dispenser films (301 to 304).
The invention relates to an optically variable element (1a), in particular a security element (1b) and/or a decorative element (1c), preferably for security documents (1d), wherein the optically variable element (1a) comprises at least one pixel array (2) comprising two or more pixels (2aa-2dd, 2e-2f), wherein one or more pixels of the two or more pixels (2aa -2dd, 2e-2f) have one or more structures (3aa-3dd, 3e-3f), and wherein one or more structures of the one or more structures (3aa -3dd, 3e-3f) image, diffract and/or scatter incident electromagnetic radiation (6) into one or more spatial angles. The invention also relates to a security document (1d), in particular comprising one or more optically variable elements (1a), to a method for producing an optically variable element (1a), preferably a security element (1b) and/or a decorative element (1c), preferably for security documents (1d), and to a method for producing a security document (1d), preferably comprising one or more layers, preferably comprising one or more optically variable elements (1a).
The invention relates to a method for producing a laminated body and a laminating inlay and a laminated body, a laminating inlay and a security document, in particular in the form of a bank card, identity card or credit card, having such a laminated body. The method comprises: providing a first laminating film (21), in particular of polycarbonate, providing at least one transfer film (4), which each have a carrier film (41) and a decorative layer (40) detachable from the carrier film, printing the first laminating film (21) and/or the decorative layer (40) with a radiation-curable adhesive, applying the transfer film (4) to the laminating film (21) in such a way that the radiation-curable adhesive layer (5) is arranged between the decorative layer (40) and the first laminating film (21), at least partly curing the radiation-curable adhesive layer (5), pulling the at least one transfer film (4) off the first laminating film (21), wherein the decorative layer (40) is detached from the carrier film (41) in one or more first sub regions (31) as it is pulled off and remains on the first laminating film (21), and laminating a plurality of successive films comprising the first laminating film (21) having the one or more first sub regions having the decorative layer (4) and at least one second laminating film (22 to 26) to form the laminated body (1).
The invention relates to a method and to a security element having a front side and a rear side opposite the front side, wherein the security element has two or more security features, wherein a first security feature of the two or more security features comprises one or more first layers and a second security feature of the two or more security features comprises one or more second layers, wherein the first security feature and the second security feature are arranged in particular in register with one another, wherein the first security feature generates at least one first optically variable effect and the second security feature generates at least one second optically variable effect, wherein the at least one first optically variable effect has a first color and the at least one second optically variable effect has a second color, wherein the first color and the second color differ from one another. The invention also relates to a method for producing a security element.
The invention relates to a method for producing a hologram (1), in particular a hologram (1) for security elements (1a) and/or security documents (1b). One or more virtual hologram planes (10) are arranged in front of and/or behind one or more virtual models (20) and/or one or more virtual hologram planes (10) are arranged such that they intersect one or more virtual models (20). One or more virtual light sources (30) are arranged on one or more portions of the surface (21) of one or more of the virtual models (20). One or more virtual electromagnetic fields (40) are calculated starting from at least one of the virtual light sources (30) in one or more zones (11) of the one or more virtual hologram planes (10). A virtual total electromagnetic field (41) is calculated in each of the one or more zones (11) on the basis of the sum of two or more, in particular of all of the virtual electromagnetic fields (40) in each zone (11). One or more phase images (50) are calculated from the virtual total electromagnetic fields (41) in the one or more zones (11). An elevation profile (60) of the hologram (1) is calculated from the one or more phase images (50) and the elevation profile (60) of the hologram (1) is incorporated into a substrate (2) in order to provide the hologram (1).
G03H 1/02 - Holographic processes or apparatus using light, infrared, or ultraviolet waves for obtaining holograms or for obtaining an image from themDetails peculiar thereto Details
G03H 1/20 - Copying holograms by holographic means
G03H 1/10 - Processes or apparatus for producing holograms using modulated reference beam
G03H 1/22 - Processes or apparatus for obtaining an optical image from holograms
G03H 1/24 - Processes or apparatus for obtaining an optical image from holograms using white light
G03H 1/28 - Processes or apparatus specially adapted to produce multiple holograms or to obtain images from them, e.g. multicolour technique superimposed holograms only
G03H 1/26 - Processes or apparatus specially adapted to produce multiple holograms or to obtain images from them, e.g. multicolour technique
G03H 1/30 - Processes or apparatus specially adapted to produce multiple holograms or to obtain images from them, e.g. multicolour technique discrete holograms only
G03H 1/00 - Holographic processes or apparatus using light, infrared, or ultraviolet waves for obtaining holograms or for obtaining an image from themDetails peculiar thereto
19.
METHOD FOR PRODUCING AN OPTICAL SECURITY FEATURE AS WELL AS SECURITY ELEMENT AND SECURITY DOCUMENT
The invention relates to a method for producing an optical security feature (3), said method comprising the following steps: forming a first electrically conductive lacquer layer (17a) on a first surface (6a) of a dielectric substrate (14), wherein the first conductive lacquer layer (17a) comprises one or more first dyes and/or a first relief structure is impressed in at least a surface of the first electrically conductive lacquer layer (17a), electroplating a first metal layer (18a) on at least one partial surface of the surface of the first electrically conductive lacquer layer (17a), which lies opposite of the dielectric substrate, using the first electrically conductive lacquer layer (17a) as a cathode or an anode during electroplating. The invention also relates to a security element (2) and a security document (1).
The invention relates to a security element that comprises one or more first microstructures, said first microstructures each being provided in one or more at least partially curved tracks or in one or more at least partially curved sections of a track, and/or each extending along one or more at least partially curved tracks or along one or more at least partially curved sections of a track. The invention also relates to a method in which at least one data set containing image points of one or more image elements is provided which contains the location arrangement of the image points and, on the basis of said image point location arrangement, one or more at least partially curved tracks or one or more at least partially curved sections of one or more tracks are determined and one or more first microstructures are provided in said one or more tracks or sections of tracks, wherein these microstructures provide, under illumination, a first optically variable piece of information, in particular one or more 3D effects and/or effects of motion, and preferably achromatic or mono-chromatic 3D effects and/or effects of motion.
The invention relates to a method for verifying a security document (1) by means of a reading device (2), characterized in that first transmission and/or reflection characteristics of a first region (3) of the security document (1) are detected in a first spectral range by the reading device (2) and a first data set specifying these properties is generated therefrom, the first region (3) overlapping at least in some regions an optical security element (1a, 1b) arranged on the security document (1) or embedded into the security document (1), in that second transmission and/or reflection characteristics of the first region (3) of the security document (1) are detected in a second spectral range by the reading device (2) and a second data set specifying these properties is generated therefrom, wherein the first spectral range differs from the second spectral range in that the authenticity of the security document (1) and/or the security element (1a, 1b) is checked on the basis of at least the first data set and the second data set.
G06K 9/46 - Extraction of features or characteristics of the image
G07D 7/12 - Visible light, infrared or ultraviolet radiation
G06K 19/14 - Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code using markings of different kinds in the same record carrier, e.g. one marking being sensed by optical and the other by magnetic means at least one kind of marking being used for authentication, e.g. of credit or identity cards the marking being sensed by radiation
The invention relates to a method for forming a volume hologram film (1f) having security elements (1), which are formed as transfer sections of the volume hologram film (1f), wherein the volume hologram film (1f) has n volume hologram layers (13) arranged one over the other. The production of the volume hologram film (1f) is performed in a roll-to-roll method having the following steps: a) providing a carrier film (11) from a supply roll (31); b) applying an i-th photopolymer layer (12) to the carrier film (11); c) forming an i-th volume hologram in the photopolymer layer (12); d) forming an i-th volume hologram layer (13i) by curing the i-th photopolymer layer (12); e) repeating the process steps b) to e) n-1 times; f) applying an adhesive layer (16) to the background layer (15); g) winding the volume hologram film (1f) onto a winding roll (32).
G03H 1/00 - Holographic processes or apparatus using light, infrared, or ultraviolet waves for obtaining holograms or for obtaining an image from themDetails peculiar thereto
G03H 1/02 - Holographic processes or apparatus using light, infrared, or ultraviolet waves for obtaining holograms or for obtaining an image from themDetails peculiar thereto Details
G03H 1/28 - Processes or apparatus specially adapted to produce multiple holograms or to obtain images from them, e.g. multicolour technique superimposed holograms only
23.
SHEET OF PAPER FOR A SECURITY DOCUMENT, METHOD FOR PRODUCING THE SHEET OF PAPER, AND SECURITY DOCUMENT PRODUCED THEREWITH
The invention relates to a sheet of paper (1) for forming a security document (2), comprising a carrier substrate (11) and n window elements (12) arranged in window recesses (11a) of the carrier substrate (11), wherein n is at least equal to 1 and wherein the n window elements (12) are formed from a window substrate (13). The n window elements (12) are integrally joined to the carrier substrate (11). The invention further relates to a method for producing the sheet of paper (1) and to a security document that comprises the sheet of paper (1).
B42D 25/21 - Information-bearing cards or sheet-like structures characterised by identification or security featuresManufacture thereof characterised by a particular use or purpose for multiple purposes
B42D 25/351 - Translucent or partly translucent parts, e.g. windows
Described is a method for producing a security element (1) in the form of a lenticular flip, comprising a micro-optical layer (11), a carrier substrate (13) and an image layer (14), the image layer (14) comprising n images (14l, 14r) for n = 1 to i which are visible from an n-th observation angle associated with the n-th image (14l, 14r), and n being at least 1. The images are imaged on a photoresist (16) with parallel light in contact print or by means of projection. After the photoresist (16) is developed, an image layer (14) which comprises the i images is present.
The invention relates to a security element (1) comprising a first volume hologram layer (11) which forms a coordinate system with the coordinate axes perpendicular to each other between x and y (3, 4) when the security element (1) is in the non-bent state. In the first volume hologram layer (11), a first volume hologram is introduced in at least one first region (51), the first hologram layer being formed in such a way that first information (21 - 30) is visible to a viewer (7) in a first viewing situation, when the security element (1) is in a predefined bent state, and it is not visible in the first viewing situation when the security element (1) is in the non-bent state, and vice versa.
The invention relates to a security document comprising a first security element that contains a visible and in particular machine-readable first piece of information, and a second security element that contains an in particular machine-readable second piece of information which can be used to verify the first piece of information. The invention further relates to a method for authenticating said security document.
G07D 7/00 - Testing specially adapted to determine the identity or genuineness of valuable papers or for segregating those which are unacceptable, e.g. banknotes that are alien to a currency
The invention relates to a method for producing a security element (1). In the method, a base film (10) is provided which has a first support film (11) and a single-layer or multilayer decorative ply (13). A first adhesive layer (30) is applied onto a second support film (40), and a second adhesive layer (15) is applied onto the first support film (11) surface facing away from the decorative ply (13) or the second adhesive layer is applied onto the first support film (11) surface facing away from the decorative ply (13), and the first adhesive layer is applied onto the second adhesive layer. The second support film (40) is applied onto the first support film such that the first adhesive layer (30) and the second adhesive layer (15) are arranged between the first support film (11) and the second support film (40). The first adhesive layer (30) is activated in a first region (31) which at least partly covers at least one first sub-region (21) of the base film (10), and the first adhesive layer (30) is not yet activated, not provided, only partly provided, or deactivated in a second region (32) adjoining the first region (31). The first support film (11) is at least partly cut along the boundary line which defines the at least one first sub-region (21) and separates the at least one first sub-region (21) from a second sub-region (22) of the base film (10), and a second base film (10) part which comprises the second sub-region (22) is drawn from the second support film (40). In the at least one first sub-region (21), the base film (10) adheres to the second support film (40) on the basis of the activated first adhesive layer, and a first base film (10) part which comprises the at least one first sub-region (21) remains on the second support film (40).
The invention relates to a method for producing a multi-layer body comprising the steps of: a) applying a first coating layer made of a water-based photoresist onto a surface of a base body; b) exposing the first coating layer in a first region, wherein the first coating layer is not exposed in a second region; c) removing the first coating layer in the second region. The invention further relates to a multi-layer body obtainable by said method and to a security document comprising such a multi-layer body.
The invention relates to a method for producing a document (1), in particular a security document, comprising a thermographic substrate (2), as well as a document (1), in particular a security document, comprising a thermographic substrate (2). Initially, the thermographic substrate (2) is provided which is caused to change in colour (15) depending on a temperature effect in at least one first region (10a – 10v). Furthermore, a film element (5) is arranged in such a way that the film element is arranged between the at least one first region (10a – 10v) of the thermographic substrate (2) and a thermal print head (6). Then, at least one first piece of information (20a – 20f) is introduced by means of the thermal print head (6) by activating the colour change (15) in the at least one first region (10a - 10v) of the thermographic substrate (2), wherein the thermal print head (6) is in contact with the film element (5) during the introduction of the at least one first piece of information (20a – 20f) in such a way that the temperature effect causing the activation of the colour change (15) is transferred from the thermal print head (6) through the film element (5) to the at least one first region (10a – 10v) of the thermographic substrate (2).
The invention relates to a multi-layered body comprising a functional layer with an antenna element, and an optical security element with at least one electrically-conductive sub-region that is galvanically connected to said antenna element. The invention also relates to a security document having such a multi-layered body, and to a method for authenticating same.
G06K 19/06 - Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
G06K 19/077 - Constructional details, e.g. mounting of circuits in the carrier
G06K 7/10 - Methods or arrangements for sensing record carriers by electromagnetic radiation, e.g. optical sensingMethods or arrangements for sensing record carriers by corpuscular radiation
G07D 7/00 - Testing specially adapted to determine the identity or genuineness of valuable papers or for segregating those which are unacceptable, e.g. banknotes that are alien to a currency
H01Q 1/00 - Details of, or arrangements associated with, antennas
B42D 25/00 - Information-bearing cards or sheet-like structures characterised by identification or security featuresManufacture thereof
The invention relates to a method for producing a volume hologram having at least one 1st area in a 1st colour and at least one 2nd area in a 2nd colour, having the steps of: a) providing a volume hologram layer comprising a photopolymer; b) arranging a master with a surface structure on the volume hologram layer; c) exposing the master to coherent light, wherein light that strikes at least one 1st subarea of the surface of the master is diffracted or reflected in the direction of the at least one 1st area of the volume hologram layer and light that strikes at least one 2nd subarea of the surface of the master is diffracted or reflected in the direction of the at least one 2nd area of the volume hologram, and wherein the light diffracted or reflected by the 1st and 2nd subareas differs in at least one optical property.
G03H 1/20 - Copying holograms by holographic means
G03H 1/30 - Processes or apparatus specially adapted to produce multiple holograms or to obtain images from them, e.g. multicolour technique discrete holograms only
G03H 1/04 - Processes or apparatus for producing holograms
G03H 1/00 - Holographic processes or apparatus using light, infrared, or ultraviolet waves for obtaining holograms or for obtaining an image from themDetails peculiar thereto
The invention relates to a method for producing a multilayer body, having the following steps: a) providing a substrate film with a replication layer; b) molding a surface relief into a surface of the replication layer, said surface relief having the appearance of a three-dimensional free-form surface to the observer and being made in particular of lens-shaped structures that produce a magnifying, minifying, or distorting effect; c) applying a first metal layer onto the replication layer surface which forms the surface relief; d) wet-chemically applying an at least partly transparent spacer layer onto the metal layer; and e) applying a second metal layer onto the spacer layer. The invention further relates to a multilayer body produced in such a manner.
The invention relates to a method for producing security elements (1), to security elements (1), to a security document (2) comprising at least one security element (1), as well as to a transfer film (90) comprising at least one security element (1). According to the invention, a three-dimensional object is detected. A three-dimensional object surface profile (37) which is described by a function F(x, y) is defined, the function F(x, y) describing the distance between the surface profile (37) and a two-dimensional reference surface (32), through which coordinate axes x and y extend, at coordinate points x and y. A first microstructure (44) is defined in such a way that the structure height (43, 53) of the first microstructure (44) is limited to a predetermined value smaller than the maximum distance (31) between the surface profile (37) and the two-dimensional reference surface, and such that the first microstructure (44) provides an observer with a first optical perception that corresponds to the three-dimensional object surface profile (37) described by the function F(x, y). The first microstructure (44) is introduced into a layer of the security element (1), in particular by lithographic methods, in such a way that the first microstructure (44) of the layer of the security element (1) provides the observer with the first optical perception.
The invention relates to a multi-layer body, comprising a carrier film, a partial reflection layer, which is arranged on the surface of the carrier film and which is at least partially transparent in a first region and opaque in a second region, a partial decorative layer, which is arranged on a surface of the carrier film and/or the side of the reflection layer facing away from the carrier layer and which is present in a third region and not present in a fourth region, wherein the first region overlaps with the third region and the second region overlaps with the third and the fourth regions. The invention further relates to a method for producing such a multi-layer body, to a security element having such a multi-layer body, and to a security document having such a security element.
The invention relates to an absorbent medium for improving the printability, especially by inkjet printing, of a security element, in particular an optically variable security element, said absorbent medium comprising a binder, at least one pigment, and an especially aqueous solvent. The invention further relates to a transfer film comprising an absorbent layer made of said type of absorbent medium as well as to a method for personalizing a security element using said type of transfer film.
B41M 5/00 - Duplicating or marking methodsSheet materials for use therein
B41M 5/025 - Duplicating or marking methodsSheet materials for use therein by transferring ink from the master sheet
B41M 5/035 - Duplicating or marking methodsSheet materials for use therein by transferring ink from the master sheet by sublimation or volatilisation of design
The invention relates to a security element (1), to a security document (2) having at least one security element (1), to a transfer film (3) having at least one security element (1), and to a method for producing a security element (1), wherein the security element has at least one layer (11) having an electrically controlled variable optical effect. According to the invention, the at least one layer (11) having an electrically controlled variable optical effect contains liquid crystals (12) that can be oriented in an electric field, and the layer (11) having an electrically controlled variable optical effect contains rod-like dye molecules (13), and the orientations of the longitudinal axes (14) of the rod-like dye molecules (13) can vary depending on the orientations of the longitudinal axes (16) of the spatially adjacent liquid crystals (12) that are orientable in the electric field, and/or wherein the liquid crystals (12) that are orientable in the electric field are such that the liquid crystals (12) that are orientable in the electric field act simultaneously as dye molecules.
The invention relates to a transfer film (1), in particular a hot stamping film, to the use of a transfer film (1), to a film, to a security document (2), and to a method for producing a transfer film (1). According to the invention, the transfer film (1) comprises a transfer layer (20) removably arranged on a carrier layer (10). Furthermore, the transfer layer (20) comprises at least one first color layer (30). The at least one first color layer (30) comprises at least one binder and at least first pigments, the color appearance of which changes in accordance with the angle of observation.
The invention relates to a method for producing a multi-layer body, in particular a security element, comprising the following steps: a) generating a metal layer on a substrate; b) partially demetallising the metal layer in order to form a first item of visual information in a first region of the multi-layer body; c) applying a partial coating layer in a second region of the multi-layer body in order to form a second item of visual information, said partial coating layer extending at least partially beyond the metal layer; d) structuring the partial metal layer in the second region using the partial coating layer as a mask. The invention also relates to a multi-layer body produced in this manner.
The invention relates to a method for authenticating an optically variable security element (1), in particular a diffractive security element, said method involving steps: a) capturing an image sequence comprising at least one individual image of the security element (1) by means of a sensor (31), in particular of a hand-held device (3), preferably a smartphone, tablet or PDA; and b) verifying whether at least one piece of predefined optical information is included in at least one individual image of the image sequence.
G07D 7/00 - Testing specially adapted to determine the identity or genuineness of valuable papers or for segregating those which are unacceptable, e.g. banknotes that are alien to a currency
G07D 7/12 - Visible light, infrared or ultraviolet radiation
B42D 25/30 - Identification or security features, e.g. for preventing forgery
40.
MULTI-LAYER BODY AND METHOD FOR THE PRODUCTION THEREOF
The invention relates to a method for producing a multi-layer body, in particular a security element, wherein a partial first layer or a partial first layer system is created on a substrate, said partial first layer or partial first layer system being provided in a first portion and not in a second portion. Subsequently, a partial second layer or a partial second layer system is created, said partial second layer or partial second layer system being provided in a third portion and not in a fourth portion, which third portion overlaps with the first and second portions. The partial first layer or the partial first layer system is then formed as a mask structure using the partial second layer or the partial second layer system.
Method for producing a plastics moulding (1), wherein in the method a mould insert (3) having a diffractive surface relief (32) is provided, the mould insert (3) is inserted into a mould half of an injection mould (5), said mould half, together with at least one further mould half, forming a cavity for producing the plastics moulding (1), wherein the mould insert (3) is inserted into the injection mould (5) such that the diffractive surface relief (32) forms a subregion of the surface, formed by the mould half (5), of the cavity, and the plastics moulding (1) is moulded by injection-moulding by means of the injection mould (5). The invention furthermore relates to a mould insert and to an injection mould for such a method, and also to a plastics moulding produced in such a way.
The invention relates to a system (100, 200, 300, 400, 500, 600) for producing a security element (4), in particular a vignette for a windshield pane (6) of a transportation means. The security element comprises a support element (3) with a first and a second surface, wherein a first sub-element (1) of the security element (4) is arranged in a first region (31) of the first surface, and a second sub-element (2) of the security element (4) is arranged in a second region (32) of the first surface, said second region being separated from the first region (31) by a folding edge (33). The sub-elements (1, 2) can be brought into a stacked arrangement by folding the support element (3) along the folding edge (33) and can be adhered by means of an adhesive (25) arranged on the second sub-element (2) face facing away from the support element (3). An individualizing feature (14) can be applied onto a first (1) and/or second sub-element (2) face facing away from the support element (3). The invention further relates to a method for producing a security element (4) using such a system (100, 200, 300, 400, 500, 600) and to a security element (4) obtained using said method.
The invention relates to an optically variable element having first and second diffraction gratings, which are high-frequency diffraction gratings and thus are reflective into the zeroth order of diffraction. Either a first color is generated by the first diffraction grating and simultaneously a second color different from the first color is generated by the second diffraction grating at a certain angle of rotation and a certain illumination angle, or a visible color is generated substantially only by the first diffraction grating at a first angle of rotation and a visible color is generated substantially only by the second diffraction grating at a second angle of rotation.
The invention relates to a multilayer body comprising a support and a layer which is arranged on the support and comprises an electrically conductive material in a specific arrangement. The multilayer body comprises an information region and a background region (18) which are galvanically separated from each other. Each information region is equipped with a first zone (10) which comprises an electrically conductive material, and the electrically conductive material of the first zones is connected in a conductive manner over the totality of the first zones. Each background region is equipped with a plurality of second zones which comprise an electrically conductive material and which are galvanically separated from one another. Each of the first zones (10) preferably takes up a surface area which is larger than each of the second zones by a factor of at least five. The electrically conductive material is preferably provided with an average surface coverage which varies by less than 25% over all the information regions and the background regions (18). In this manner, a homogenous appearance of the multilayer body is provided, and information provided in the information region by means of the shape, size, and/or alignment of the first zone is not visible without an aid and therefore cannot be copied.
B42D 15/08 - Letter-cards or letter-sheets, i.e. cards or sheets each of which is to be folded with the message inside and to serve as its own envelope for mailing
G06K 19/067 - Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards
G06K 19/077 - Constructional details, e.g. mounting of circuits in the carrier
B42D 15/00 - Printed matter of special format or style not otherwise provided for
45.
MULTILAYER BODY AND METHOD FOR PRODUCING A SECURITY ELEMENT
The invention relates to a multilayer body (1, 2, 3) and a method for producing a security element. The multilayer body has a metal layer (21). An optically active surface relief is formed on at least some regions of a first surface of the metal layer (21), said first surface facing the top of the multilayer body or forming the top of the multilayer body, and/or a second surface of the metal layer (21), said second surface facing the bottom of the multilayer body or forming the bottom of the multilayer body. The surface relief is formed by a first relief structure (61) in at least one first region (31 to 39) of the multilayer body. The first relief structure (61) has a sequence of elevations (612) and depressions (614) in at least one direction (617) determined by a corresponding azimuth angle, said elevations (612) successively following one another with a period P which is smaller than a visible light wavelength. The minima of the depressions (614) lie on a base surface, and the first relief structure (61) has a relief depth t which is determined by the distance between the maxima of the elevations (612) of the first relief structure (61) and the base surface in a direction perpendicular to the base surface. The profile shape and/or the relief depth t of the first relief structure (61) is selected such that the coloration of the light (52, 53) which is incident on the first region (31 to 39) at at least one first angle of incidence and which is directly reflected by the metal layer (21) in the first region or directly transmitted through the metal layer is changed, in particular by means of the plasmon resonance of the metal layer together with the incident light.
The invention relates to a security element (2), more particularly in the form of a multilayered flexible film body, having a top side facing an observer and a rear side facing away from the observer, and to a method for producing said security element. The security element (2) comprises one or more light-emitting elements arranged in a first region (30) of the security element, said one or more light-emitting elements emitting light upon activation and being formed more particularly in each case by a self-luminous, electrically operated, display element. The security element (2) comprises one or more transmissive diffraction structures in the first region (30). In this case, the one or more transmissive diffraction structures are arranged in such a way that at least part of the light emitted by the activated one or more light-emitting elements transmits through at least one partial region of the transmissive diffraction structures.
The invention relates to a security element (2) comprising a first region (30) which is transparent in transmitted light. The security element (2) comprises a substrate (21) which in the first region (30) has one or more transmissive diffraction structures which, when seen in transmitted light, show one or more optical security features.
A decorative element (2), more particularly in the form of a transfer film, a laminating film or a security thread, and a security document comprising a decorative element and a method for producing same are described. The decorative element (2) has a microstructure (4) that generates an optical effect in reflected light and/or in transmitted light. The microstructure (4) has in a first region (32) a base surface (40) and a plurality of base elements (41), which each have an element surface elevated or recessed relative to the base surface (40) and a flank arranged between the element surface and the base surface (40). The base surface (40) of the microstructure defines a base plane spanned by coordinate axes x and y. The element surfaces of the base elements (41) each run substantially parallel to the base plane. In at least one or a plurality of first zones of the first region (32), the element surfaces of the base elements (41) and the base surface (40) are spaced apart, in a direction running perpendicularly to the base plane (40) in the direction of a co-ordinate axis z, at a first distance, chosen such that more particularly as a result of interference of the light reflected at the base surface and the element surfaces in reflected light and/or more particularly as a result of interference of the light transmitted through the element surfaces and the base surface in transmitted light, a colour is generated in the one or the plurality of first zones, and wherein the base elements (41) are shaped and arranged in the first region (31, 32) in such a way that, by means of the base elements (41), the incident light is deflected by scattering and/or by diffraction from direct reflection or direct transmission or the zeroth order of diffraction in such a way that a second colour different from the first colour, more particularly a second colour complementary to the first colour, is generated upon viewing in direct reflection or direct transmission or in the zeroth order of diffraction.
B42D 15/00 - Printed matter of special format or style not otherwise provided for
B42D 15/10 - Identity, credit, cheque or like information-bearing cards (record carriers, e.g. credit or identity cards, for use with machines and with at least a part designed to carry digital markings G06K 19/00)
G03H 1/02 - Holographic processes or apparatus using light, infrared, or ultraviolet waves for obtaining holograms or for obtaining an image from themDetails peculiar thereto Details
49.
METHOD FOR TRANSFERRING A DECORATIVE SECTION OF AN EMBOSSING FOIL
The invention relates to a method for transferring a decorative section (16) of an embossing foil (1) to a substrate (23) by means of an embossing roller (24), an embossing stamp (24'), or an applied adhesive layer (14). The embossing foil (1) comprises a carrier foil (11) and a transfer layer (13) arranged on the carrier foil (11). The method comprises providing the embossing foil (1), stamping at least one linear notch (15) arranged at a distance from the edge of the decorative section (16) into the transfer layer (13), embossing the decorative section (16) onto the substrate (23), and detaching the remaining embossing foil from the substrate (25) embossed with the decorative section (16).
Two film webs (1) and (2) (in each case transfer film or laminating film) with carrier film (11) and decorative ply (14), more particularly metal layer and/or colour layer (14), are to be joined to one another. Instead of using, as hitherto, a conventional adhesive tape with cold-applied adhesive, use is presently made of a hot-applied adhesive or of an adhesive curable by (UV) radiation. By means of hot embossing, for example, a carrier (63) with a PET ply (64) and an adhesive (65) can be applied, which joins two film webs (1, 2), lying edge to edge, to one another.
C09J 5/06 - Adhesive processes in generalAdhesive processes not provided for elsewhere, e.g. relating to primers involving heating of the applied adhesive
B32B 37/12 - Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by using adhesives
B29C 65/48 - Joining of preformed partsApparatus therefor using adhesives
B29C 65/02 - Joining of preformed partsApparatus therefor by heating, with or without pressure
51.
MULTILAYER BODY HAVING ELECTRICALLY CONDUCTIVE ELEMENTS AND METHOD FOR PRODUCING SAME
The invention provides a large number of possibilities, by which it can be prevented that in the case of a multilayer body having electrically conductive elements, which are invisible to the naked eye, the electrically conductive elements reflect back light in an excessive manner. In this case, a suitable surface roughness can be selected for the electrically conductive elements, or at least one additional layer (54) can be provided on the electrically conductive elements (51l).
B60S 1/02 - Cleaning windscreens, windows, or optical devices
H05B 3/86 - Heating arrangements specially adapted for transparent or reflecting areas, e.g. for demisting or de-icing windows, mirrors or vehicle windshields the heating conductors being embedded in the transparent or reflecting material
The invention relates to an optically variable element and to a method for the production thereof. In a first area, the optically variable element has at least one first color region that generates a color dependent on the angle of observation and/or the angle of illumination in the event of illumination. The first color region has two or more zones (41 to 47) arranged next to one another. The two or more zones arranged next to one another each have a width dimension and/or length dimension less than 300 µm. In at least one first zone (41) of the zones (41 to 47) of the first color region, a thin-film interference filter (15) having at least one interference layer (17) is provided. The interference layer (17) of the thin-film interference filter (15) has a first average thickness (d1) in the first zone (41). The first average thickness is selected in such a way that the thin-film interference filter (15) generates a color by means of interference in the event of illumination under at least one certain angle of observation and/or angle of illumination, which color is different from at least one color that is generated in at least one of the other zones (42 to 47) of the first color region in the event of illumination under said angle of observation and/or angle of illumination.
B44F 1/08 - Designs or pictures characterised by special or unusual light effects characterised by colour effects
B42D 15/10 - Identity, credit, cheque or like information-bearing cards (record carriers, e.g. credit or identity cards, for use with machines and with at least a part designed to carry digital markings G06K 19/00)
G07D 7/00 - Testing specially adapted to determine the identity or genuineness of valuable papers or for segregating those which are unacceptable, e.g. banknotes that are alien to a currency
The invention relates to a security element (1). The security element (1) includes a visible side and an opposite back side. The security element comprises at least one luminous layer (2) capable of providing light (20), and at least one mask layer (4) which, when viewing the security element (1) from the visible side, is arranged in front of the at least one luminous layer (2). The at least one mask layer (4) includes at least one opaque region (5) and at least two transparent openings (41, 42). The at least two transparent openings (41, 42) have a substantially higher rate of transmission than the at least one opaque region (5) with respect to the light (20) provided by the at least one luminous layer (2), preferably a 20% higher rate of transmission, more preferably a 50% higher rate of transmission.
The invention relates to a security element (1). The security element (1) has a visible face, and a rear side lying opposite said face. The security element includes at least one luminous layer (2), which can emit light (20), and at least one mask layer (4), which is arranged in front of the at least one luminous layer (2) when looking at the security element (1) from the visible face. The at least one mask layer (4) has at least one opaque region (5) and at least two transparent openings (41, 42). The at least two transparent openings (41, 42) have a significantly higher degree of transmission than the at least one opaque region (5) with respect to the light emitted (20) by the at least one luminous layer (2), preferably a degree of transmission higher by at least 20%, with a degree of transmission higher by at least 50% being especially preferred.
The invention relates to a display device (10), more particularly in the form of a multilayer film body. Said display device (10) comprises, in a first region (22), a first electrode (41), a second electrode (42), a third electrode (43) and a display layer (122) with display material. The display layer (122) is disposed between the first electrode (41) and the second electrode (42). The third electrode (43) is disposed on the side of the display layer (122) facing away from the first electrode (41). The first electrode (41) is designed as an electrically isolated electrode. When viewed perpendicularly to the plane defined by the display layer (122), the first electrode (41) at least partially overlaps both the second electrode (42) and the third electrode (43).
G02F 1/167 - Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulatingNon-linear optics for the control of the intensity, phase, polarisation or colour based on translational movement of particles in a fluid under the influence of an applied field characterised by the electro-optical or magneto-optical effect by electrophoresis
B42D 15/00 - Printed matter of special format or style not otherwise provided for
G09F 9/37 - Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements being movable elements
G09G 3/34 - Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix by control of light from an independent source
56.
METHOD AND DEVICE FOR JOINING TRANSFER OR LAMINATING FILM WEBS
A description is given of a method for joining a first and a second film web (2, 2') of a transfer film or laminating film, wherein the film webs (2, 2') comprise a thermoplastic carrier film (21) and a decorative layer (23). Formed between the first and second film webs (2, 2') is a common joining portion (3), in which the first and second film webs (2, 2') are joined to each other by a welding process. A device for carrying out the method is also described.
The invention relates to a multi-layered foil body (1) for marking a security document, in particular a banknote. The foil body (1) has at least one colour filter layer (2) and at least one change layer (4) with an electrically controllable transmittance and/or an electrically controllable colour. The change layer (4) can have liquid crystals (15), which are alignable in an electric field, such as a PDLC layer. The foil body (1) preferably comprises two differently coloured colour filter layers (2, 3) and a change layer (4) which is disposed therebetween. The invention furthermore relates to a security element (10) having at least one aforementioned foil body and a piezoelectric energy source (8) which controls the change layer (4).
G02F 1/1334 - Constructional arrangements based on polymer-dispersed liquid crystals, e.g. microencapsulated liquid crystals
G02F 1/1335 - Structural association of cells with optical devices, e.g. polarisers or reflectors
G02F 1/15 - Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulatingNon-linear optics for the control of the intensity, phase, polarisation or colour based on an electrochromic effect
B42D 15/00 - Printed matter of special format or style not otherwise provided for
B42D 15/10 - Identity, credit, cheque or like information-bearing cards (record carriers, e.g. credit or identity cards, for use with machines and with at least a part designed to carry digital markings G06K 19/00)
The invention relates to a multi-layer body (10) and to a process for the production thereof. The multi-layer body has a first layer (23) with a first surface (231) and a second surface (232) lying opposite the first surface (231). The first surface (231) of the first layer (23) is defined by a base plane spanned by coordinate axes x and y, wherein a large number of facet faces (50) are moulded into the second surface (232) of the first layer (23) in a first region (31). Each of the facet faces (50) is determined by one or more of the parameters F, S, H, P, Ax, Ay and Az, wherein the parameters of the facet faces (50) arranged in the first region (31) are varied, in the first region (31), pseudorandomly within a variation range predefined in each case for the first face region, and wherein a reflective, second layer (24) is applied to each of the facet faces.
The invention relates to a security element (1), in particular a value document, and to a method for producing same. The security element has a patterned region (21) consisting of one or more design elements (22), the shape of said patterned region providing a first item of visually perceptible information. Said element also has a background region (20) which surrounds one or more design elements of the patterned region at least in some regions. The security element (1) has an opaque reflective layer, which is not provided in the background region (20) and is provided in the patterned region (21) in first zones (31), but not in second zones. The first zones (31) are mutually spaced by less than 300 μm and have a smallest dimension of less than 300 μm.
B42D 15/00 - Printed matter of special format or style not otherwise provided for
B42D 15/10 - Identity, credit, cheque or like information-bearing cards (record carriers, e.g. credit or identity cards, for use with machines and with at least a part designed to carry digital markings G06K 19/00)
The invention relates to a foil element (1) and to a method for producing such a foil element. The foil element (1) comprises a dielectric carrier layer (10), which spans an xy plane (E) of a Cartesian coordinate system having an x axis (61), a y axis (62) and a z axis (63), and at least one electrically conductive layer which is arranged on the carrier layer (10) and in which a conductor track (27) is formed in a frame-like region (5) of the foil element (1). The frame-like region (5) is formed by the area of a larger, outer rectangle (80) having sides (81, 82, 83, 84) each running parallel to the x axis (61) or y axis (62), from which area the area of a smaller, inner rectangle (90) with the same orientation as the outer rectangle (80) is cut out. The frame-like region (5) is subdivided into two frame sections (51, 52, 53, 54) running parallel to the x axis and two frame sections (51, 52, 53, 54) running parallel to the y axis, each of which sections is bounded by a bounding side (81, 82, 83, 84) of the outer rectangle (80) and a side (91, 92, 93, 94) of the inner rectangle (90) directly adjacent to the bounding side (81, 82, 83, 84) of the outer rectangle (80) and parallel thereto and subdivides the conductor track into conductor track sections (71a to 71d, 72a to 72d, 73d). A mechanical property of the carrier layer (10) is different along the x axis (61) and the y axis (62). More than 50% of the length of at least one conductor track section (71a to 71d, 72a to 72d, 73d) runs obliquely to the x axis (61) and the y axis (62), seen parallel to the z axis (63).
G06K 19/077 - Constructional details, e.g. mounting of circuits in the carrier
H01Q 1/38 - Structural form of radiating elements, e.g. cone, spiral, umbrella formed by a conductive layer on an insulating support
H01Q 7/00 - Loop antennas with a substantially uniform current distribution around the loop and having a directional radiation pattern in a plane perpendicular to the plane of the loop
H01Q 1/22 - SupportsMounting means by structural association with other equipment or articles
The invention relates to a multilayer body (2) having a transparent first layer (13). In a first region (31) of the transparent first layer (13) a plurality of microlenses (21) are moulded, which are arranged in accordance with a microlens grid. Furthermore, the multilayer body (2) has a second layer (12) arranged beneath the first layer (13) and in a fixed position with respect to the first layer (13), the second layer having a plurality of microimages (22) which, in order to generate first optically variable information, are arranged in accordance with a microimage grid and in each case overlapping at least in areas with one of the microlenses (21) of the microlens grid. The grid widths (41, 42) of the microimage grid and the microlens grid are each less than 300 μm in at least one direction in space.
G07D 7/00 - Testing specially adapted to determine the identity or genuineness of valuable papers or for segregating those which are unacceptable, e.g. banknotes that are alien to a currency
The invention relates to a multi-layer body (1) comprising a first layer (13) having a plurality of first zones (21), which are separated from each other by one or more transparent second zones (22). The multi-layer body comprises a second layer (14), which is made of a transparent material and is arranged below the first layer (13), and a reflective layer (15), which is arranged below the second layer (14). The second layer (14) comprises a plurality of third zones (23), in each of which a microstructure (17) is formed in the bounding surface of the second layer (14) to the reflective layer (15), which bounding surface faces away from the first layer. Each of the microstructures (17) is designed in such a way that light incident perpendicularly, relative to the plane spanned by the first layer, in the region of the respective third zone (23) from the direction of the first layer, is reflected or refracted back to a region of the first layer by the microstructure, the area of which region is less than the area of the respective third zone (23) by a factor of at least 10. The microstructures (17) are arranged according to a microstructure grid having a distance between adjacent microstructures in a second spatial direction of less than 300 μm.
The invention relates to a method for producing a security element and a transfer film. The transfer film comprises a base film (10) comprising a first carrier film (11) and single or multi-ply decal layer. A first adhesive layer (30) and a second carrier film (40) are applied to the surface of the first carrier film (11) facing away from the decal layer, such that the first adhesive layer (30) is disposed between the first carrier film (11) and the second carrier film (40). The first adhesive layer (30) is activated in a first area (31) covering at least one first partial area (21) of the base film (10), and the first adhesive layer is not activated, not provided, only partially provided, or deactivated in a second area (32) adjacent to said first area (31). The first carrier film (11) is then at least partially separated along the boundary line defining the at least one first partial area (21) and separating the at least one first partial area (21) from a second partial area (22) of the base film (10). A second part of the base film (10) comprising the second partial area (22) is pulled off of the second carrier film (40), wherein the base film (10) adheres to the second carrier film (40) in the at least one first partial area (21) due to the activated first adhesive layer, and a first part of the base film (10) comprising the at least one first partial area (21) remains on the second carrier film (40).
B42D 15/10 - Identity, credit, cheque or like information-bearing cards (record carriers, e.g. credit or identity cards, for use with machines and with at least a part designed to carry digital markings G06K 19/00)
B42D 15/00 - Printed matter of special format or style not otherwise provided for
64.
VOLUME HOLOGRAM COMPRISING EXPANSION AGENT LAYER OR CONTRACTION AGENT LAYER FOR CREATING COLOR PATTERNS
The invention relates to a security element in the form of a multi-layer foil body containing a volume hologram layer (3) which is accommodated using a relief hologram (4). The Bragg grating of the volume hologram is expanded (8) locally using an expansion agent (5) or a contraction agent, in the form of a color image, for example, in order to add a second piece of optional information. A pattern, such as an image, is created either by partially imprinting the expansion agent or using an inserted mask layer (6) that is locally pervious to the expansion agent.
G03H 1/00 - Holographic processes or apparatus using light, infrared, or ultraviolet waves for obtaining holograms or for obtaining an image from themDetails peculiar thereto
G03H 1/18 - Particular processing of hologram record carriers, e.g. for obtaining blazed holograms
B42D 15/10 - Identity, credit, cheque or like information-bearing cards (record carriers, e.g. credit or identity cards, for use with machines and with at least a part designed to carry digital markings G06K 19/00)
The invention relates to an optical security element and a method for producing an optical security element in the form of a multilayer body, having in a first region of the security element a projection element (8) for reshaping by means of diffraction the light transmitted through the optical security element in said first region. The projection element (8) has a plurality of first zones (85) in which a first surface of a replicating layer (82) has a first surface structure and an opaque metal layer (85) is arranged on the first surface of the replicating layer (82). The projection element furthermore has a plurality of transparent second zones (86) in which the first surface of the replicating layer has a second surface structure (87) having an aspect ratio different from the aspect ratio of the first surface structure and no opaque metal layer. The first zones (85) each have a smallest dimension of less than 20 μm and the pattern created by the first and second zones forms a diffractive optical system that diffracts the light transmitted through the second zones (86) for presenting a first piece of information.
G03H 1/04 - Processes or apparatus for producing holograms
G03H 1/26 - Processes or apparatus specially adapted to produce multiple holograms or to obtain images from them, e.g. multicolour technique
B42D 15/10 - Identity, credit, cheque or like information-bearing cards (record carriers, e.g. credit or identity cards, for use with machines and with at least a part designed to carry digital markings G06K 19/00)
The invention relates to a film element with a replicating layer (43), wherein an optically active surface structure (27) is moulded into a first surface of the replicating layer. The surface structure is formed in at least a first region of the film element (35) from a first diffractive surface relief (46) made up of a series of sequential elements (47) following a first envelope (47), wherein the elements are each made up of an element surface (48) parallel to a base surface and at least one flank adjacent to the neighbouring element surface or element surfaces, the element surfaces (48) of neighbouring elements being separated in a direction perpendicular to the base plane with a first optical separation or a multiple of said first optical separation, wherein the first optical separation is between 150 nm and 800 nm, preferably between150 nm and 400 nm. The first envelope (47) has a spatial frequency of between 100 L/mm and 2000 L/mm and an optical depth of more than 450 nm and the relief form and the spatial frequency f the envelope (47) are selected such that the incident light is refracted in one or more first directions to represent a first piece of information the colour value of which is further determined by the first optical separation.
B42D 15/10 - Identity, credit, cheque or like information-bearing cards (record carriers, e.g. credit or identity cards, for use with machines and with at least a part designed to carry digital markings G06K 19/00)
67.
SECURITY DOCUMENT AND METHOD FOR THE PRODUCTION THEREOF
The invention relates to a security document (10) comprising a carrier substrate (1) and at least one first film element (2) that is fixed to the carrier substrate (1) and which has a first optically variable effect produced by a diffractive first relief structure. Said security document (10) also comprises at least one first printed ink layer (5) that is applied, at least in parts, to the at least one first film element, and at least one second film element (3). The invention also relates to a method for producing said type of security document (10).
B42D 15/10 - Identity, credit, cheque or like information-bearing cards (record carriers, e.g. credit or identity cards, for use with machines and with at least a part designed to carry digital markings G06K 19/00)
B42D 15/00 - Printed matter of special format or style not otherwise provided for
The invention relates to a film element (1') for protecting an object (10), in particular a valuable document, a data carrier or a product. Said film element has a diffractive relief structure that produces an optically variable effect (5) and has a base form (2) with an outline when viewed perpendicular to the film plane. Patterned recesses (3, 3') are provided on at least 25% of the outline of the base form on the periphery of the film element, said recesses forming information superimposed on the base form and providing notches (4, 4') on the periphery of the film element.
B42D 15/00 - Printed matter of special format or style not otherwise provided for
B42D 15/10 - Identity, credit, cheque or like information-bearing cards (record carriers, e.g. credit or identity cards, for use with machines and with at least a part designed to carry digital markings G06K 19/00)
69.
MULTILAYER BODY AND METHOD FOR PRODUCING A MULTILAYER BODY
The invention relates to a multilayer body (5) and a method for producing a multilayer body (5). The multilayer body (5) has a transparent first layer (51), into which are impressed a multiplicity of cylindrical lenses having a length of more than 2 mm and a width of less than 400 쎽m, which are arranged in accordance with a microlens grid spanning a first coordinate system having a coordinate axis X1, which is determined by the focal point lines of the cylindrical lenses, and a coordinate axis Y1 perpendicular thereto. In a second layer (52), which is arranged below the first layer at a fixed position with respect to the first layer, a multiplicity of microscopic structures in the form of microimages are formed, which are distorted along a longitudinal axis relative to a transverse axis in accordance with a transformation function, and which are arranged in accordance with a microimage grid spanning a second coordinate system having a coordinate axis X2 and a coordinate axis Y2 perpendicular thereto. In a region of the multilayer body in which the microlenses of the microlens grid and the microscopic structures of the microimage grid overlap, the line spacing determined by the spacing-apart of the focal point lines of the cylindrical lenses and the microimage spacing determined by the spacing-apart of the area centroids of the microimages differ from one another by not more than 10%. In order to form the multilayer body (5), the second layer is applied to a third layer, the first layer is arranged above the third layer and the first, second and third layers are laminated together using heat and pressure by means of a tool (41, 42, 43), engaging on the top side of the first layer and the underside of the third layer. In this case, the lens grid is impressed into the surface of the first layer into the top side of the first layers by means of a pressing plate in which the negative form of the lens grid is impressed.
The invention relates to a multi-layer body (7) having a carrier substrate (750) and having a transparent layer (720), which is arranged at least partially in a window (70) or in a transparent region of the carrier substrate (750). The transparent layer (720) comprises at least one first (71a) and one second partial region (71b) having a varying refractive index, arranged next to each other in the layer plane formed by the transparent layer (720) and at least partially in the window (7) or in the transparent region of the carrier substrate (75). Each partial region (71a, 71b) comprises a plurality of periodically arranged knots, forming an element with an optical effect and formed by refractive index variation, arranged in planes running substantially parallel to each other. The planes in the at least one first partial region (71a) are not parallel to the planes in the at least second partial region (71b). In at least one of the partial regions (71a, 71b) the planes neither run in parallel nor perpendicular to the layer plane. Thus, the incident light on the front and also on the back of the multi-layer body (7) is diffracted due to the elements with an optical effect and the elements form an optical effect that differs in the front view and in the rear view in incident light.
B42D 15/00 - Printed matter of special format or style not otherwise provided for
B42D 15/10 - Identity, credit, cheque or like information-bearing cards (record carriers, e.g. credit or identity cards, for use with machines and with at least a part designed to carry digital markings G06K 19/00)
G03H 1/30 - Processes or apparatus specially adapted to produce multiple holograms or to obtain images from them, e.g. multicolour technique discrete holograms only
71.
METHOD FOR PRODUCING A MULTI-LAYER BODY, AND MULTI-LAYER BODY
Various methods are described for producing multi-layer bodies having at least one partially formed functional layer and at least one further partially formed layer, and the multi-layer bodies which are produced in this way are also described. The multi-layer body has at least one partially formed functional layer in register with at least one further partially formed layer which preferably complement one another to form a geometric, alphanumeric, visual, graphic or figurative coloured design.
B42D 15/00 - Printed matter of special format or style not otherwise provided for
B42D 15/10 - Identity, credit, cheque or like information-bearing cards (record carriers, e.g. credit or identity cards, for use with machines and with at least a part designed to carry digital markings G06K 19/00)
72.
METHOD FOR PRODUCING AT LEAST ONE MULTILAYER BODY, AND MULTILAYER BODY
The invention relates to a method for producing a multilayer body, wherein the multilayer body comprises at least two functional layers on a top side of a carrier substrate, which are patterned in register with one another by preparing an underside of the carrier substrate in such a way that in a first region there results a transmissivity for a first exposure radiation and in at least one second region there results a transmissivity for at least one second exposure radiation, different from said first exposure radiation, in register with the first region, that the underside is successively exposed with the first and the at least one second exposure radiation, and that the first exposure radiation is used for patterning a first functional layer and the at least one second exposure radiation is used for patterning at least one second functional layer on the top side of the carrier substrate.
H01L 51/00 - Solid state devices using organic materials as the active part, or using a combination of organic materials with other materials as the active part; Processes or apparatus specially adapted for the manufacture or treatment of such devices, or of parts thereof
73.
METHOD OF GENERATING A LASER MARK IN A SECURITY DOCUMENT, AND SECURITY DOCUMENT OF THIS KIND
The invention relates to a method of generating a laser mark (4) in a security document by means of at least one laser beam, the security document having at least one laser-markable layer and also at least one reflecting layer which overlaps at least partly with the at least one laser-markable layer and has opaque regions. The at least one reflecting layer has at least one transparent region (3a) and in visual terms at least is not substantially altered by the laser treatment of the laser-markable layer.
B42D 15/10 - Identity, credit, cheque or like information-bearing cards (record carriers, e.g. credit or identity cards, for use with machines and with at least a part designed to carry digital markings G06K 19/00)
74.
METHOD FOR PRODUCTION OF A LAMINATED MULTILAYER COMPOSITE, A LAMINATED MULTILAYER COMPOSITE, AND USE THEREOF
The invention relates to a method for the production of a laminated multilayer composite (1) comprising a carrier foil (Ia) which exhibits at least one polymer layer, in particular of polyvinylchloride or polyethylene teraphthalate, at least one security element (2), applied on at least one polymer layer, and at least one plastic foil. The carrier foil is annealed before the security element is applied, at least in the area in which the security element is to be applied. The invention further relates to a multilayer composite (1) produced thereafter, and the use thereof in the form of a card or similar.
B32B 38/00 - Ancillary operations in connection with laminating processes
B42D 15/10 - Identity, credit, cheque or like information-bearing cards (record carriers, e.g. credit or identity cards, for use with machines and with at least a part designed to carry digital markings G06K 19/00)
Disclosed is a multilayer element for displaying microimages that are provided with gray shades or color shades. Said multilayer element comprises a transparent first layer into which a plurality of microlenses are molded, and a second layer (61) that is disposed below the first layer and is fitted with a plurality of microimages. The microlenses are arranged according to a microlens screen. The second layer has a plurality of microimage areas (61 b) which are arranged according to a microimage area screen whose screen width is smaller than 300 &mgr;m. Two or more microimages (61 ma to 61 mc) located in a microimage area are different from each other within each microimage area, the raster spaces of the microlens screen and the microimage screen varying by less than 10 percent. The microimages have areas with a grayscale value or a color value. Also disclosed is a method for producing said multilayer element.
B29D 11/00 - Producing optical elements, e.g. lenses or prisms
B42D 15/00 - Printed matter of special format or style not otherwise provided for
B42D 15/10 - Identity, credit, cheque or like information-bearing cards (record carriers, e.g. credit or identity cards, for use with machines and with at least a part designed to carry digital markings G06K 19/00)
MAX-PLANCK-GESELLSCHAFT ZUR FÖRDERUNG DER WISSENSCHAFTEN E.V. (Germany)
Inventor
Schilling, Andreas
Horb, Stanislav, N.
Abstract
A description is given of an insect screening sheet with an insect-repellent layer (10), in which the insect-repellent layer (10) has a three-dimensional surface structure which comprises a regularly, periodically and/or randomly distributed coarse structure (12g) and/or nanostructure (12n).
A01G 13/10 - Devices for affording protection against animals, birds or other pests
A01M 29/34 - Scaring or repelling devices, e.g. bird-scaring apparatus preventing or obstructing access or passage, e.g. by means of barriers, spikes, cords, obstacles or sprinkled water specially adapted for insects
Described is a method for producing a multi-layer body having a volume hologram with at least two different image information items, wherein a photosensitive layer (46) of the multi-layer body is brought into contact with the front side of a master (44) directly or by interposing a transparent optical medium (44s, 45), into which front side nested areas with different asymmetrical surface structures or kinoform structures are formed which embody the at least two different image information items. The photosensitive layer (46) and the master are exposed using a coherent light beam (47), by means of which a volume hologram is formed in the photosensitive layer (46). A master for producing the multi-layer body and a security element with said multi-layer body are further described.
G03H 1/20 - Copying holograms by holographic means
G03H 1/26 - Processes or apparatus specially adapted to produce multiple holograms or to obtain images from them, e.g. multicolour technique
B42D 15/10 - Identity, credit, cheque or like information-bearing cards (record carriers, e.g. credit or identity cards, for use with machines and with at least a part designed to carry digital markings G06K 19/00)
patents
