摘要:
The invention concerns a process for the production of a multi-layer body, wherein the multi-layer body includes at least two functional layers on a top side of a carrier substrate, which are structured in register relationship with each other, by a procedure whereby an underside of the carrier substrate is prepared in such a way that in a first region there results a transparency for a first exposure radiation and in at least one second region there results a transparency for at least one second exposure radiation different therefrom in register relationship with the first region, the underside is successively exposed with the first and the at least one second exposure radiation and the first exposure radiation is used for structuring a first functional layer and the at least one second exposure radiation is used for structuring at least one second functional layer on the top side of the carrier substrate.
摘要:
Described is a multi-layer body (1), in particular a transfer film, having a replication lacquer layer and a metallic layer which is arranged on the replication lacquer layer and which has a plurality of microscopically fine pattern regions (14m) and a background region (14d) completely surrounding each of the pattern regions (14m), wherein the pattern regions (14m) are arranged in a raster (14r) of the raster width D and the pattern regions are respectively arranged separated from each other at a spacing B by the background region. Also described is a process for the production of such a multi-layer body.
摘要:
There is described a process for the production of a multi-layer body (100) having a partially shaped first layer (3m), wherein it is provided that in the process a diffractive first relief structure (4) with a high depth-to-width ratio of the individual structure elements, in particular with a depth-to-width ratio of >0.3, is shaped in a first region (5) of a replication layer (3) of the multi-layer body (100) and the first layer (3m) is applied to the replication layer (3) in the first region (5) and in a second region (4, 6) in which the relief structure is not shaped in the replication layer (3), with a constant surface density, and the first layer (3m) is partially removed in a manner determined by the first relief structure so that the first layer (3m) is partially removed in the first region (5) or in the second region (4, 6) but not in the second region (4, 6) or in the first region (5) respectively.
摘要:
There are described a process for the production of a multi-layer body (100) having a partially shaped first layer (3m) and a multi-layer body produced in that way. It is provided that a diffractive first relief structure (4) is shaped in a first region of a replication layer (3) of the multi-layer body, that the first layer (3m) is applied to the replication layer (3) in the first region and in a second region in which the relief structure is not shaped in the replication layer (3), that a photosensitive layer is applied to the first layer (3m) or a photosensitive washing mask is applied thereto as a replication layer, that the photosensitive layer or the washing mask is exposed through the first layer (3m) so that the photosensitive layer or washing mask is exposed differently due to the first relief structure in the first and in the second regions, and that the first layer (3m) is removed using the exposed photosensitive layer or washing mask as a mask layer in the first region but not in the second region or in the second region but not in the first region.
摘要:
The invention concerns an optical security element having a substrate layer, in which a first microstructure for producing a first optically perceptible effect is shaped region-wise in a surface region. The surface region is divided into microscopically fine pattern regions and a background region. The first microstructure is shaped in the pattern regions but not in the background region. The microscopically fine pattern regions in the surface region are arranged in the form of a moire pattern into which a concealed item of information which can be evaluated by means of an associated verification element is encoded as a security feature. The microscopically fine pattern regions are further substructured in accordance with a substructuring function which describes a microscopic substructuring, serving as a further security feature, of the moiré pattern.
摘要:
The present invention relates to an individualized security document such as a passport, savings book or bankbook or the like which has a number of pages which are joined together by means of a fixing or adhesive. Incorporated into the security document by means of the fixing or adhesive is a transfer film which is provided with security elements and which has a base film and a decorative layer arrangement having the security elements. The decorative layer arrangement can be transferred onto the associated page of the security document. At the same time the base film is detached from the decorative layer arrangement and can be cut out of the security document.
摘要:
A security element which is difficult to copy includes a layer composite which has microscopically fine, optically effective structures of a surface pattern, which are embedded between two layers of the layer composite. In a plane of the surface pattern, which is defined by co-ordinate axes x and y, the optically effective structures are shaped into an interface between the layers in surface portions of a holographically non-copyable security feature. In at least one surface portion the optically effective structure is a diffraction structure formed by additive superimposition of a macroscopic superimposition function (M) with a microscopically fine relief profile (R). Both the relief profile (R), the superimposition function (M) and also the diffraction structure are functions of the co-ordinates x and y. The relief profile (R) is a light-diffractive or light-scattering optically effective structure and, following the superimposition function (M), retains the predetermined profile height. The superimposition function (M) is at least portion-wise steady and is not a periodic triangular or rectangular function. In comparison with the relief profile (R) the superimposition function (M) changes slowly. Upon tilting and rotation of the layer composite the observer sees on the illuminated surface portions light, continuously moving strips which are dependent on the viewing direction.
摘要:
Described is a multi-layer body (1), in particular a transfer film, having a replication lacquer layer and a metallic layer which is arranged on the replication lacquer layer and which has a plurality of microscopically fine pattern regions (14m) and a background region (14d) completely surrounding each of the pattern regions (14m), wherein the pattern regions (14m) are arranged in a raster (14r) of the raster width D and the pattern regions are respectively arranged separated from each other at a spacing B by the background region. Also described is a process for the production of such a multi-layer body.
摘要:
A multi-layer body includes at least two functional layers on a top side of a carrier substrate, which are structured in register relationship with each other, by a procedure whereby an underside of the carrier substrate is prepared in such a way that in a first region there results a transparency for a first exposure radiation and in at least one second region there results a transparency for at least one second exposure radiation different therefrom in register relationship with the first region, the underside is successively exposed with the first and the at least one second exposure radiation and the first exposure radiation is used for structuring a first functional layer and the at least one second exposure radiation is used for structuring at least one second functional layer on the top side of the carrier substrate.
摘要:
Described is a transfer film, in particular a hot embossing film, which includes a carrier film and a transfer layer portion having a structure layer, the transfer layer portion being arranged on the carrier film and being detachable from the carrier film, wherein it is provided that the carrier film has a master relief structure on its side towards the structure layer and the structure layer on its side towards the carrier film has a relief structure complementary to the master relief structure of the carrier film. There is further provided a process for the production of the transfer film and a multi-layer body formed with the structure layer.