摘要:
A data carrier with an optically variable element. The optically variable element includes a first structured print which is overlaid with a second print, at least in partial areas. The second print is applied to a document with an ink which contains an optically variable pigment having little or no body color of its own.
摘要:
The invention relates to a data carrier, in particular bank note, paper of value, identity card or the like, having a security element disposed on the surface thereof. The data carrier is provided in at least one partial area with a background layer containing at least one authenticity feature. The optically variable element is applied to this background layer such that it overlaps the latter at least partly but does not completely cover it.
摘要:
A method for producing a security document having printed image 1 produced by steel intaglio printing and embossed microstructures 2 of an order of magnitude of less than 100 microns is carried out by one printing plate 8 on which both the steel intaglio structures and the microstructures are present. The parts of the microstructures closest to printing plate surface 9 are located 20 to 100 microns below the printing plate surface so that they are not touched and destroyed by the wiping cylinder. Alternative methods for producing a steel intaglio printing plate with integrated microstructures are provided. The microstructures can be used for embossing a diffractive relief or a blind embossing.
摘要:
The invention relates to a data carrier having a security element that is at lest visually testable and has an embossing in at least a partial area, the embossing being a halftone blind embossing executed by inkless line intaglio printing, and to a method for producing the data carrier and a printing plate for blind-embossing a security element.
摘要:
The invention relates to a method, in which from two images of a security element, which are recorded with right-handed and left-handed circularly polarizing filters, a differential image is produced, on the basis of which the authenticity of the security element is tested, and an apparatus for carrying out the method.
摘要:
The invention relates to documents of value, such as bank notes, checks, passports, ID cards or the like, with increased fitness for circulation, to a security paper for producing them, and to a method for producing said security paper and such documents of value.
摘要:
The invention relates to a data carrier having a security element that is at lest visually testable and has an embossing in at least a partial area, the embossing being a halftone blind embossing executed by inkless line intaglio printing, and to a method for producing the data carrier and a printing plate for blind-embossing a security element.
摘要:
A method for producing a security document having printed image 1 produced by steel intaglio printing and embossed microstructures 2 of an order of magnitude of less than 100 microns is carried out by one printing plate 8 on which both the steel intaglio structures and the microstructures are present. The parts of the microstructures closest to printing plate surface 9 are located 20 to 100 microns below the printing plate surface so that they are not touched and destroyed by the wiping cylinder. Alternative methods for producing a steel intaglio printing plate with integrated microstructures are provided. The microstructures can be used for embossing a diffractive relief or a blind embossing.
摘要:
Printing plates for all-over printing of large areas by the intaglio printing process, a method for producing the printing plates and data carriers, in particular bank notes, with large-area printed images produced by the intaglio printing process area proposed. Flawless inking is ensured by providing partitions in the engraving of the printing plate which rise up vertically from the base of the engraved area and have at least a height of 50% of the engraving depth. The partitions largely prevent ink from being wiped out of the engraved areas when ink is wiped off the printing plate surface. This permits a large printed area to be covered all over with ink layers on a data carrier. By special arrangement and design of the partitions one can also produce fine structures in the printing area which area recognizable only with magnifying aids depending on the selected distances between the partitions.