摘要:
The invention relates to a data support (1) with an optically variable structure (2) which has an embossed structure and a coating that contrasts with the surface of the data support (1). Said embossed structure and said coating are combined in such a way that when the structure is viewed in a vertical position, at least parts of the coating are completely visible while when the structure is viewed at an angle, said parts are concealed, so that a tilting effect is produced when the structure is viewed alternately in the vertical position and at an angle. The coating is uniform, while the embossed structure is divided into partial areas in which different partial embossed structures are provided.
摘要:
The invention relates to printing plates for full printing of large surfaces by means of a gravure process, a method for the production of said printing plates, and data carriers, especially banknotes with large-surface printed images that are produced according to a gravure process. In order to guarantee faultless inking, separating segments are provided in the engraving of the printing plate, whereby said separating segments protrude above the base surface of the engraving area in a perpendicular manner and are at least half as high as the depth of the engraving. The separating segments prevent, to a large extent, the printer's colour from being removed from the engraving surfaces when the printer's colour is wiped off from the surface of the printing plates. This makes it possible to provide full colour coatings for large areas. Special arrangement and special embodiment of the separating segments and the arrangement thereof enable the production of fine structures in the printing surface, whereby said fine structures can, according to the choice of distance between the separating segments, only be identified using auxiliary means of enlargement.
摘要:
The invention relates to printing plates for full printing of large surfaces by means of a gravure process, a method for the production of said printing plates, and data carriers, especially banknotes with large-surface printed images that are produced according to a gravure process. In order to guarantee faultless inking, separating segments are provided in the engraving of the printing plate, whereby said separating segments protrude above the base surface of the engraving area in a perpendicular manner and are at least half as high as the depth of the engraving. The separating segments prevent, to a large extent, the printer's colour from being removed from the engraving surfaces when the printer's colour is wiped off from the surface of the printing plates. This makes it possible to provide full colour coatings for large areas. Special arrangement and special embodiment of the separating segments and the arrangement thereof enable the production of fine structures in the printing surface, whereby said fine structures can, according to the choice of distance between the separating segments, only be identified using auxiliary means of enlargement.
摘要:
A data carrier has at least one half-tone image (10) generated by structure elements (12). A predetermined symmetrical enlargement of the structure elements (12) represents a corresponding degree of grey of the half-tone image (10). The image (10) has predetermined areas (14, 16 and 22) in which a predetermined number of structure elements (12) is arranged. The number of structure elements (12) in the surface of each area (14, 16 and 22) differs between at least two areas (14, 16 and 22) and/or the structure elements (12) are mutually offset in at least two areas (14, 16 and 22). When a data carrier with such a half-tone image (10) is copied, a moiré pattern is generated in at least certain predetermined areas of the half-tone image (10), so that a copy of the data carrier is immediately visible to the naked eye.
摘要:
The invention relates to a value document system having a plurality of individualized value documents (W1; W2;...; Wn), wherein each individualized value document comprises a composed identity mark, consisting of a first piece of image information (X1; X2;...; Xn) that is variable from value document to value document and at least one second piece of image information (Y1; Y2;...; Yn) that is variable from value document to value document. The first and the second pieces of image information can be obtained by means of exposure to laser radiation or by means of ink jet methods, and the first piece of image information (X1; X2;...; Xn) is logically linked to the second piece of image information(Y1; Y2;...; Yn).
摘要:
The disclosure relates to a data carrier (1) with an optically variable structure (3), with an imprinted grid pattern so combined with a coating which contrasts with the surface of the data carrier (1) as to produce different optically variable effects when viewed from different angles. The imprinted grid pattern and/or coating are made in such a way that especially striking or additional effects are created showing whether or not the data carrier (1) is genuine but not capable of being reproduced with copiers in a way faithful to the original.
摘要:
A data carrier has at least one half-tone image (10) generated by structure elements (12). A predetermined symmetrical enlargement of the structure elements (12) represents a corresponding degree of grey of the half-tone image (10). The image (10) has predetermined areas (14, 16 and 22) in which a predetermined number of structure elements (12) is arranged. The number of structure elements (12) in the surface of each area (14, 16 and 22) differs between at least two areas (14, 16 and 22) and/or the structure elements (12) are mutually offset in at least two areas (14, 16 and 22). When a data carrier with such a half-tone image (10) is copied, a moiré pattern is generated in at least certain predetermined areas of the half-tone image (10), so that a copy of the data carrier is immediately visible to the naked eye.