Abstract: The invention relates to a value document, in particular a bank note, having a value document substrate and at least one feature substance for authenticity recognition and at least two different feature substances for checking the value document, wherein, according to the invention, first and second feature substances are present on or in the value document substrate in the form of mutually independent codings which render at least partly the same contents, e.g. statement of value, currency, etc.

Abstract: The invention relates to a value document, in particular a bank note, having a value document substrate and at least three different feature substances for checking the value document, which has a first feature substance, and wherein second and third feature substances are applied to the value document substrate in a printing ink jointly. The second feature substance is formed by a luminescent substance, and the third feature substance by a material absorbent in a special spectral range.

Abstract: Method for producing an exposed substrate, which has at least two different image areas. The substrate is provided with at least two photoresist layers, which are adjusted to the type of image areas to be produced.

Abstract: The invention relates to a method for producing a substrate having a resist layer in the form of a relief structure, which represents a diffraction structure. The resist layer at least in certain areas adjoins a conductive layer, which scatters the primary electrons and/or produces secondary electrons when the resist layer is exposed by means of an electron beam. With this method the material of the resist layer and the conductive layer and the exposure parameters are adjusted to each other such that the resist layer is also exposed outside the area impinged with the electron beam such that the flanks of the relief structure obtain an inclined form.

Abstract: The invention relates to a security element, preferably for documents of value, which at least has one area with a diffraction structure, which under specific viewing conditions reconstructs a diffractive image. This area has subareas, which do not take part in the reconstruction of the diffractive image, and which represent a recognizable information. Essential is that the information represented by the subareas is recognizable mainly only under the viewing conditions, under which the diffractive image can be perceived.

Abstract: To produce a grating image for a security document it is disclosed to fill a contour line (9) with hatching lines (11) with the help of a drawing program, to calculate grating coordinates from the intersection points, the hatching lines (11) have with the contour line (9), and to supply the such produced data records to a lithography machine.

Abstract: Method for producing an exposed substrate, which has at least two different image areas. The substrate is provided with at least two photoresist layers, which are adjusted to the type of image areas to be produced.

Abstract: The invention relates to a value document having a machine-readable authenticity mark. According to the invention the authenticity mark comprises a luminescent marking substance and a marking substance absorbing in the infrared spectral range.

Abstract: The invention relates to a document of value such as a paper of value or ID card with a security element having an optically variable material. Said optically variable material conveys different color effects at different viewing angles. Additionally, the security element has at least one machine-readable feature substance that does not impair the visually visible optically variable effect of the optically variable material.

Abstract: The invention relates to a system comprising a series of data carriers, in particular identity cards, papers of value or the like, whereby the data carriers belonging to the system exhibit diffraction structures containing standard information and parts of the series are changed by additional measures in the area of the diffraction structures or combined with other elements and they differ from the rest of the series in optically recognizable fashion, whereby the change in the diffraction structures and/or the combination with other elements convey an esthetic overall impression and the change and/or combination with the other elements cannot be undone without destruction of the diffraction structures.

Abstract: The invention relates to a method for producing a grating image, which has at least one grating field recognizable with the naked eye, in which are disposed grating elements, which are produced by a writing apparatus. In a first procedure step at least one grating element is determined, which completely lies within one working field. Then a sequence of working fields is defined, in which the grating elements are to be produced by the writing apparatus. Finally, the working fields are moved to by a relative movement of a carrier, on which is located a substrate to be inscribed, and the writing apparatus, and the grating elements are written into the substrate with the writing apparatus within the respective working fields.

Abstract: The invention relates to sheet material having an electrical circuit and to apparatuses and methods for processing said sheet material. The present invention describes sheet material having an electrical circuit as well as apparatuses and methods for processing same, which reduce the effort required for processing the sheet material and/or facilitate processing and/or improve it and/or make it more reliable. For this purpose, the sheet material has at least one electrical circuit, with energy and/or data being transmitted from the apparatus to the electrical circuit and/or from the electrical circuit to the apparatus and at least part of the transmitted data being used for processing.

Abstract: A method and apparatus for screen printing for producing security foils for objects of value such as papers of value consisting of a carrier foil and a cover layer applied thereto, the cover layer having the form of characters or patterns and/or coating-free areas in the form of characters, patterns or the like. A printing raw form is fastened in a printing machine and, before a printing operation, a reversible imaging process is performed in which the screen printing raw form having a certain number of screen openings of predetermined mesh width is provided uniformly and completely with lacquer or ink so that all screen openings are closed, and then selected openings are reopened so as to be ink-permeable for the printing operation.

Abstract: In a method for producing embossing plates, in particular steel intaglio printing plates, a plane element is determined from a line drawing, the edge of the plane element defining a desired contour. A tool track is then calculated from the desired contour and a desired depth associated with the plane element, to be used for guiding an engraving tool such that the partial area is removed.

Abstract: A screen for producing two-level watermarks is produced by completely closing part of the screen with a viscous sealing compound, which is subsequently cured actively or passively. At the thus closed partial areas of the screen, paper deposit is hindered during papermaking so that the finished paper appears light in transmission in the areas. A mask is used for exactly positioning the sealing compound in the partial areas of the screen and/or for curing the sealing compound only in the given partial areas, whereby in the latter case the uncured areas of the sealing compound are washed out.

Abstract: The invention relates to a document of value consisting of a substrate of predetermined surface area with a printed image visible to the naked eye and a marking in the form of characters, patterns or the like at least partly superimposed on the printed image. The marking is represented by a feature substance having at least one mechanically detectable physical property and extends over the predominant part of the surface of the document. The marking additionally has a given measurable regularity which makes it possible, by mechanical scanning of the marking, to detect the correctness of the distribution and recognize gaps or added partial elements of other authentic documents as disturbances.

Abstract: A method and apparatus for screen printing for producing security foils for objects of value such as papers of value consisting of a carrier foil and a cover layer applied thereto, the cover layer having the form of characters or patterns and/or coating-free areas in the form of characters, patterns or the like. A printing raw form is fastened in a printing machine and, before a printing operation, a reversible imaging process is performed in which the screen printing raw form having a certain number of screen openings of predetermined mesh width is provided uniformly and completely with lacquer or ink so that all screen openings are closed, and then selected openings are reopened so as to be ink-permeable for the printing operation.

Abstract: The invention relates to a security device having at least one plastic layer and one specularly reflecting metal layer. An inorganic auxiliary layer is disposed between the plastic layer and the metal layer.

Abstract: The invention relates to a method for producing security foils for objects of value such as papers of value consisting of a carrier foil and a cover layer applied thereto, the cover layer having the form of characters or patterns and/or coating-free areas in the form of characters, patterns or the like. In this method a printing form fastened in a printing machine is imaged so that areas of the form are ink-accepting, subsequently the form is inked and a carrier foil printed. In the next step the printed carrier foil is provided with a thin cover layer and finally the printed inking and the cover layer thereabove are removed so that coating-free areas arise.

Abstract: The invention relates to a document of value consisting of a substrate of predetermined surface area with a printed image visible to the naked eye and a marking in the form of characters, patterns or the like at least partly superimposed on the printed image. The marking is represented by a feature substance having at least one mechanically detectable physical property and extends over the predominant part of the surface of the document. The marking additionally has a given measurable regularity which makes it possible, by mechanical scanning of the marking, to detect the correctness of the distribution and recognize gaps or added partial elements of other authentic documents as disturbances.