Abstract:
There is described a security element or document comprising a substrate (20) and at least a first dynamic-effect feature (100; 120; 121; 122; 23; 130; 135; 140; 150; 171; 181; 191; 200) provided on the substrate which includes a dynamic-effect component that is responsive to illumination stimulus of a selected excitation wavelength or wavelength band to produce an optical spectral response, which optical spectral response changes dynamically over an observable period of time between multiple color appearances (C, F, M; C1, M1) upon and while being subjected to the illumination stimulus. The first dynamic-effect feature is provided in a region of the substrate which is proximate or adjacent to at least one proximity feature (101, 102; 120a, 120b; 21a, 121b; 122a, 122b; 123a, 123b; 131, 132, 133; 136, 137; 141, 142; 151, 60; 172; 182, 183; 192; 201, 205, 206) provided on the substrate, which at least one proximity feature has a color appearance which is selected to enhance and/or complement at least one of the multiple color appearances of the first dynamic-effect feature.
Abstract:
Die Erfindung betrifft einen Plattenzylinder, wobei der Plattenzylinder einen Kanal aufweist, in dem eine Spannvorrichtung angeordnet ist, die eine vordere und eine hintere Klemmvorrichtung aufweist und wobei die hintere Klemmvorrichtung Teil eines Schlittens der Spannvorrichtung ist und wobei der Schlitten mittels eines Spannantriebs innerhalb des Kanals entlang eines Spannwegs in einer Spannrichtung auf die vordere Klemmvorrichtung zu bewegbar angeordnet ist und wobei ein maximaler Verstellweg des Schlittens relativ zu einem Zylinderballen des Plattenzylinders in und/oder entgegen der Spannrichtung zumindest so groß ist, wie eine in der Spannrichtung gemessene Ausdehnung einer vorgesehenen Kontaktfläche einer in der hinteren Klemmvorrichtung geklemmten Druckplatte mit einem radial äußeren Klemmelement der hinteren Klemmvorrichtung sowie ein Verfahren zum Anordnen einer Druckform auf einen Plattenzylinder.
Abstract:
There is described an ink wiping system (100) for an intaglio printing press comprising a rotatable wiping roller assembly (102) designed to wipe excess ink from the surface of a rotatable intaglio printing cylinder (80). The rotatable wiping roller assembly (102) comprises a rotatable hollow cylindrical body (110) having an outer surface (110a) positioned to wipe the surface of the printing cylinder (80), and a pressing device (130) disposed inside the cylindrical body (110) and designed to exert pressure on an inner surface (110b) of the cylindrical body (110) and to allow adjustment of a wiping pressure between the cylindrical body and the intaglio printing cylinder (80). The pressing device (130) preferably comprises a plurality of pressing units (132) that are distributed axially along the inside of the hollow cylindrical body (110) to allow adjustment of the wiping pressure between the cylindrical body (110) and the intaglio printing cylinder at a plurality of axial positions along the length of the hollow cylindrical body (110).
Abstract:
There is described a method for checking the authenticity of security documents, in particular banknotes, wherein authentic security documents comprise security features (41-49; 30; 10; 51, 52) printed, applied or otherwise provided on the security documents, which security features comprise characteristic visual features intrinsic to the processes used for producing the security documents. The method comprises the step of digitally processing a sample image of at least one region of interest (R. o. I.) of the surface of a candidate document to be authenticated, which region of interest encompasses at least part of the security features, the digital processing including performing a decomposition of the sample image by means of wavelet transform (WT) of the sample image. Such decomposition of the sample image is based on a wavelet packet transform (WPT) of the sample image, preferably a so-called two-dimensional shift invariant WPT (2D-SIWPT)
Abstract:
There is described a method for processing stacks of sheets (SS) into bundles (5) of securities, in particular banknote bundles, the method comprising the steps of cutting successive stacks of sheets (SS), each carrying an array of multiple security prints arranged in a matrix of rows and columns, into successive sets of bundle strips (S; S*), and cutting the successive set of bundle strips (S; S*) into successive sets (2) of consecutive bundles (5) of securities. This method further comprises the step of counting the number of substrates within each bundle strip (S; S*) prior to cutting thereof into the successive sets (2) of consecutive bundles (5). Such counting comprises taking at least one image (I) of a at least a portion of a longitudinal side (10) of the bundle strip (S; S*) while the bundle strip (S; S*) is being displaced along a direction of displacement (A) which is parallel to the longitudinal side (10) of the bundle strips (S; S*), and processing the said at least one image (I) to derive a substrate count of the substrates within the bundle strip (S; S*). Also described in a system for carrying out this method.
Abstract translation:描述了一种用于将纸张堆叠(SS)处理成证券的捆(5),特别是纸币捆的方法,所述方法包括以下步骤:切割连续堆叠的纸张(SS),每个纸张堆叠布置有多个安全打印件阵列 在行和列的矩阵中,连续成组的束带(S; S *),以及将连续的束带组(S; S *)切割成连续的证券集合(5)的连续集合(2)。 该方法还包括在切割成连续束(5)的连续组(2)之前,对每个束带(S; S *)内的基板数进行计数的步骤。 这种计数包括在束带(S; S *)沿着方向(S; S *)移位的至少一个图像(I)至少一个束带(S; S *)的纵向侧面(10) 的平行于束带(S; S *)的纵向侧面(10)的位移(A),并且处理所述至少一个图像(I)以导出束带内的基底的基板计数 S; S *)。 也在用于执行该方法的系统中描述。
Abstract:
There is described a method of manufacturing a security article, said method comprising the steps of: introducing into an offset printing device a transparent film comprising a non-fibrous substrate layer of regenerated cellulose; disposing an opacification layer on at least a portion of at least one surface of said film by a first offset printing step; and disposing printed information on at least a portion of said opacification layer by a second offset printing step.
Abstract:
There is described a hot-stamping press (10'; 10''; 10''') comprising a foil application unit (2; 2*) designed to allow transfer or lamination of foil material (FM) by hot-stamping onto a substrate (S) supplied in the form of successive sheets or successive portions of a continuous web, which foil material (FM) is fed to the foil application unit (2; 2*) in the form of a foil carrier (FC) supplied by means of a foil feeding system (3). The hot-stamping press (10'; 10''; 10''') further comprises at least one UV-curing unit (61; 62; 63) located along a path (A) of the substrate (S) downstream of the foil application unit (2; 2*) to subject the foil material (FM) transferred or laminated onto the substrate (S) to a UV- curing operation. The foil material (FM) is provided with an adhesive intended to ensure adhesion of the foil material (FM) onto the substrate (S), which adhesive comprises a combination of hot-melt compounds reacting to the application of heat produced by the foil application unit (2; 2*) and UV-curing compounds reacting to the application of ultraviolet radiation produced by the UV-curing unit (61; 62; 63).
Abstract:
There is described a sheet-fed stamping press (10*) comprising a foil application unit (2*) designed to allow transfer or lamination of foil material onto successive sheets (S), which foil material is fed to the foil application unit (2*) in the form of a foil carrier (FC) supplied by means of a foil feeding system (3). The foil application unit (2*) comprises a stamping cylinder (21 ) with at least one circumferential stamping section (210) provided on a circumference of the stamping cylinder (21 ) and comprising successive stamping segments (211 *; 211 **) distributed one after the other about the circumference of the stamping cylinder (21 ), the stamping cylinder (21 ) also acting as sheet-transporting cylinder and comprising multiple sheet holding units (21 a) distributed about the circumference of the stamping cylinder (21 ) and designed to hold successive sheets (S) against the circumference of the stamping cylinder (21 ). The foil application unit (2*) further comprises a plurality of counter-pressure units (25) distributed about a portion of the circumference of the stamping cylinder (21 ) and designed to press the successive sheets (S) and the foil carrier (FC) against an outer surface of the stamping segments (211 *; 211 **), the foil carrier (FC) being supplied by the foil feeding system (3) between the sheets (S) and the stamping segments (211 *; 211 **). Each counter-pressure unit (25) is designed as a cylinder unit (250, 255) provided with at least one circumferential pressing element (255) positioned to cooperate with the circumferential stamping section (210) of the stamping cylinder (21 ), and a ratio (D 21 /D 25 ) of a nominal diameter (D 21 ) of each circumferential stamping section (210) of the stamping cylinder (21 ) over a nominal diameter (D 25 ) of each ring element (255) of the counter-pressure units (25) is an integer multiple.
Abstract:
There is described a sheet-fed stamping press (10*) comprising a foil application unit (2*) designed to allow transfer or lamination of foil material onto successive sheets (S), which foil material is fed to the foil application unit (2*) in the form of a foil carrier (FC) supplied by means of a foil feeding system (3). The foil application unit (2*) comprises a stamping cylinder (21) with at least one circumferential stamping section (210) provided on a circumference of the stamping cylinder (21) and comprising successive stamping segments (211*; 211**) distributed one after the other about the circumference of the stamping cylinder (21), the stamping cylinder (21) also acting as sheet-transporting cylinder and comprising multiple sheet holding units (21a) distributed about the circumference of the stamping cylinder (21) and designed to hold successive sheets (S) against the circumference of the stamping cylinder (21). The foil application unit (2*) further comprises a plurality of counter-pressure units (25) distributed about a portion of the circumference of the stamping cylinder (21) and designed to press the successive sheets (S) and the foil carrier (FC) against an outer surface of the stamping segments (211*; 211**), the foil carrier (FC) being supplied by the foil feeding system (3) between the sheets (S) and the stamping segments (211*; 211**). Each counter-pressure unit (25) is designed as a cylinder unit (250, 255) provided with at least one circumferential pressing element (255) positioned to cooperate with the circumferential stamping section (210) of the stamping cylinder (21), and the counter-pressure units (25) are driven into rotation by means of at least one dedicated drive (26).
Abstract:
There is described a printing press (100) comprising a printing group (2) adapted to apply on a substrate at least one ink or varnish vehicle containing magnetic or magnetisable flakes and at least one magnetic orientation unit (10) located downstream of the printing group (2) along a path of the substrate, which magnetic orientation unit (10) includes at least one magnetic-field-inducing device (12) adapted to orient the magnetic or magnetisable flakes contained in the ink or varnish vehicle applied on the substrate to induce an optically-variable effect in the ink or varnish vehicle. The printing press (100) further comprises a drying/curing unit (15) located along the path of the substrate and cooperating with the magnetic orientation unit (10), which drying/curing unit (15) is adapted to dry or cure the ink or varnish vehicle applied on the substrate following orientation of the magnetic or magnetisable flakes. The drying/curing unit (15) is mounted on a movable supporting structure (16) that is adapted to move the drying/curing unit (15) between a working position (WP), where the drying/curing unit (15) is cooperating with the magnetic orientation unit (10) and which is located proximate to the path of the substrate next to the magnetic orientation unit (10), and a retracted position (RP), where the drying/curing unit (15) is retracted away from the magnetic orientation unit (10) and from the path of the substrate.