摘要:
A multi-layer body having a partially shaped first layer and a diffractive first relief structure shaped in a first region of a replication layer. The first layer is applied to the replication layer in the first region and, in a second region, a photosensitive layer is applied to the first layer or a photosensitive washing mask is applied thereto as a replication layer. The photosensitive layer or the washing mask is exposed through the first layer 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 the first layer 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 relates to a method of generating a laser marking 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 and, at least visually, is not significantly altered by the laser treatment of the laser-markable layer.
摘要:
The invention concerns a security document comprising a translucent carrier substrate, in particular of paper and/or plastic material, and at least one security element which is applied to the carrier substrate or embedded in the carrier substrate and which presents at least one image when viewed in the transillumination mode from at least a first side of the security document and simulates a presence of at least a first watermark in the carrier substrate, wherein the security element has at least region-wise at least one layer which simulates the first watermark, wherein the at least one layer of the security element, that simulates the first watermark, imparts thereto unexpected optical effects in relation to security elements with conventional watermarks.
摘要:
The invention relates to a method of generating a laser marking 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 and, at least visually, is not significantly altered by the laser treatment of the laser-markable layer.
摘要:
A multi-layer body having a partially shaped first layer and a diffractive first relief structure shaped in a first region of a replication layer. The first layer is applied to the replication layer in the first region and, in a second region, a photosensitive layer is applied to the first layer or a photosensitive washing mask is applied thereto as a replication layer. The photosensitive layer or the washing mask is exposed through the first layer 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 the first layer 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:
Described is a process for the production of a multi-layer body having a volume hologram with at least two different items of image information, wherein a photosensitive layer (46) of the multi-layer body is directly or with the interposition of a transparent optical medium (44s, 45) brought into contact with the front side of a master (44), in which interlaced regions with different asymmetrical surface structures or kinoform structures are shaped, which embody the at least two different items of image information. The photosensitive layer (46) and the master are exposed with a coherent light beam (47) whereby a volume hologram is formed in the photosensitive layer (46). Also described are a master for the production of the multi-layer body and a security element having said multi-layer body.
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:
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:
The invention concerns a security document comprising a translucent carrier substrate, in particular of paper and/or plastic material, and at least one security element which is applied to the carrier substrate or embedded in the carrier substrate and which presents at least one image when viewed in the transillumination mode from at least a first side of the security document and simulates a presence of at least a first watermark in the carrier substrate, wherein the security element has at least region-wise at least one layer which simulates the first watermark, wherein the at least one layer of the security element, that simulates the first watermark, imparts thereto unexpected optical effects in relation to security elements with conventional watermarks.
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.