Abstract:
There is described a printed security feature (10) provided onto a printable substrate, which printed security feature includes a printed area (11) consisting of a multiplicity of geometric elements (GE, 15) printed with a given distribution over the printed area. The geometric elements are printed with at least first and second inks which exhibit the same or substantially the same optical appearance when illuminated with visible white light, such that the printed security feature produces a first graphical representation (A1) when illuminated with visible white light. At least the first ink is an ink which responds to non-visible light excitation by producing a characteristic optical response differentiating the first ink from the second ink. The printed security feature produces a second graphical representation (B1) when illuminated with non-visible light, which exhibits a distinctive two-dimensional graphic element (B) which is revealed only when the printed security feature is illuminated with non-visible light. The printed area is subdivided into at least first and second printed portions (P1, P2), adjacent to the distinctive two-dimensional graphic element, and a third printed portion (P3), inside boundaries (200) of the distinctive two-dimensional graphic element. In the first, respectively second printed portion, the geometric elements are printed with the first, respectively second ink. In the third printed portion, the geometric elements are subdivided into first and second contiguous portions (GE_a, GE_b) which are respectively printed with the first and second inks. The first and second inks are printed in register one with respect to the other so that the boundaries of the distinctive two-dimensional graphic element are not visible when the printed security feature is illuminated with visible white light and the distinctive two-dimensional graphic element only becomes visible when the printed security feature is illuminated with non-visible light.
Abstract:
There is described a sheet numbering process involving feeding of individual sheets (S) in succession, which individual sheets (S) each carry a plurality of imprints (P) that are arranged in a matrix of rows and columns, and providing unique serial numbers to multiple ones of the plurality of imprints (P) carried by the individual sheets (S). The sheet numbering process comprises numbering of at least some of the individual sheets (S), wherein numbering of the individual sheets (S) is selectively commutable between a first numbering scheme (N1) and at least a second numbering scheme (N2; N2'; N*), different from the first numbering scheme (N1), without interruption of the numbering process. The first numbering scheme (N1) involves providing all imprints (P) of a first subset (S 0 ) of individual sheets (S) with a unique serial number (SN1) of the first numbering scheme (N1). The second numbering scheme (N2; N2'; N*) involves providing all or part of the imprints (P) of a second subset (S'; S*) of individual sheets (S) with a unique serial number (SN2; SN2'; SN*) of the second numbering scheme (N2; N2'; N*). Also described is a sheet-processing machine for carrying out the aforementioned sheet numbering process.
Abstract translation:描述了一张片材编号过程,包括连续送入单张纸(S),该单张纸张(S)各自承载以行和列为矩阵排列的多个印记(P),并提供唯一的序列号 由单张纸(S)承载的多个印记(P)中的多个印记(P)。 片材编号过程包括至少一些单张纸(S)的编号,其中单张纸张(S)的编号在第一编号方案(N1)和至少第二编号方案(N2; N2')之间可选择地换向, ; N *),不同于第一编号方案(N1),而不中断编号处理。 第一编号方案(N1)涉及用第一编号方案(N1)的唯一序列号(SN1)提供单张纸(S)的第一子集(S 0)的所有印记(P)。 第二编号方案(N2; N2'; N *)涉及提供具有唯一序列号(SN2; SN2)的单张纸(S)的第二子集(S'; S *)的全部或部分印记(P) '; SN *)(N2; N2'; N *)。 还描述了一种用于执行上述片材编号处理的片材加工机。
Abstract:
There is described a substrate (S) for security documents, such as banknotes, comprising one or more paper layers (11, 12) and a polymer layer (20) which is made to adhere to a side of at least one of the paper layers (11, 12), which polymer layer (20) is substantially transparent in at least one region of the substrate (S) which is not covered by the paper layer or layers (11, 12) so as to form a substantially transparent window (W) in the substrate (S) which is formed and closed by the polymer layer (20). The polymer layer (20) exhibits in the region of the window (W) a thickness (T) which is greater than a thickness (t) of the polymer layer (20) outside of the region of the window (W). The thickness (T) of the polymer layer (20) in the region of the window (W) is substantially equal to the added thickness of the paper layer or layers (11, 12) and of the polymer layer (20) outside of the region of the window (W) so that the substrate (S) exhibits a substantially uniform and constant thickness (T). The substrate (S) further comprises a micro-optical structure (30), in particular a lens structure, which is disposed in the region of the window (W) on at least one side of the polymer layer (20).
Abstract:
There is described a sheet-fed printing press and method for orienting magnetic flakes contained in an ink or varnish vehicle applied on sheets. The printing press comprises a printing group (2) designed to apply an ink or varnish vehicle containing magnetic flakes on successive sheets and system designed to orient the magnetic flakes contained in the ink or varnish vehicle applied on the sheets. The system comprises a processing unit (10*) with at least one magnetic-field-inducing device for orienting the magnetic flakes contained in the ink or varnish vehicle applied on the sheets, which processing unit (10*) is located along a path of the sheets in such a way that the each sheet is brought into contact with or in close proximity to the processing unit (10*) and the at least one magnetic-field-inducing device. The processing unit (10*) comprises a cylinder body (10), the at least one magnetic-field-inducing device being disposed on an outer circumference of the cylinder body (10). The printing press further comprises a first chain conveyor system (31) designed to transport and transfer the sheets to the processing unit (10*) and a second chain conveyor system (32) designed to take away the sheets from the processing unit (10*). The system further comprises at least one drying or curing unit (60) disposed in the vicinity of the cylinder body (10) for drying or curing the ink or varnish vehicle to fix the orientation of the magnetic flakes contained therein while the sheet is still in contact with or in close proximity to the cylinder body (10) and the at least one magnetic-field-inducing device before the sheet is taken away from the at least one magnetic-field-inducing device.
Abstract:
There is described a system and method for orienting magnetic flakes contained in an ink or varnish vehicle applied on a sheet-like or web-like substrate. The system comprises a processing unit (10*) with at least one magnetic-field-inducing device for orienting the magnetic flakes contained in the ink or varnish vehicle applied on the substrate, which processing unit (10*) is located along a path of the substrate in such a way that the substrate is brought into contact with or in close proximity to the processing unit (10*) and the at least one magnetic-field-inducing device. The system further comprises at least one drying or curing unit (60) disposed in the vicinity of the processing unit (10*) for drying or curing the ink or varnish vehicle to fix the orientation of the magnetic flakes contained therein while the substrate is still in contact with or in close proximity to the processing unit (10*) and the at least one magnetic-field-inducing device before the substrate is taken away from the at least one magnetic-field-inducing device.
Abstract:
There is described a sheet-fed rotary printing press (100; 200; 300) for the production of banknotes and like securities comprising at least one printing form cylinder (115, 125; 215; 315, 325). A nominal diameter (D) of the at least one printing form cylinder (115, 125; 215; 315, 325) substantially corresponds to an integer multiple of a reference diameter of a one-segment cylinder (103a, 103c, ...) as used for printing onto super-format sheets. An axial length (AL) of the at least one printing form cylinder (115, 125; 215; 315, 325) is comparatively greater than a nominal axial length of a corresponding printing form cylinder as used for printing onto super-format sheets, by an amount such that the at least one printing form cylinder (115, 125; 215; 315, 325) is suitable for printing onto large-format sheets having a comparatively greater width (W) than a width of super-format sheets. A circumferential length (SL) of each segment of the at least one printing form cylinder (115, 125; 215; 315, 325) is comparatively greater than a nominal circumferential length of each segment of a corresponding printing form cylinder as used for printing onto super-format sheets, by an amount such that the at least one printing form cylinder (115, 125; 215; 315, 325) is suitable for printing onto large-format sheets having a comparatively greater length (L) than a length of super-format sheets.
Abstract:
There is described a sheet numbering process involving feeding of individual sheets (S) in succession, which individual sheets (S) each carry a plurality of imprints (P) that are arranged in a matrix of rows and columns, and providing unique serial numbers to multiple ones of the plurality of imprints (P) carried by the individual sheets (S). The sheet numbering process comprises numbering of at least some of the individual sheets (S), wherein numbering of the individual sheets (S) is selectively commutable between a first numbering scheme (N1) and at least a second numbering scheme (N2; N2'; N*), different from the first numbering scheme (N1), without interruption of the numbering process. The first numbering scheme (N1) involves providing all imprints (P) of a first subset (S 0 ) of individual sheets (S) with a unique serial number (SN1) of the first numbering scheme (N1). The second numbering scheme (N2; N2'; N*) involves providing all or part of the imprints (P) of a second subset (S'; S*) of individual sheets (S) with a unique serial number (SN2; SN2'; SN*) of the second numbering scheme (N2; N2'; N*). Also described is a sheet-processing machine for carrying out the aforementioned sheet numbering process.
Abstract translation:描述了一张片材编号过程,包括连续送入单张纸(S),该单张纸张(S)各自承载以行和列为矩阵排列的多个印记(P),并提供唯一的序列号 由单张纸(S)承载的多个印记(P)中的多个印记(P)。 片材编号过程包括至少一些单张纸(S)的编号,其中单张纸张(S)的编号在第一编号方案(N1)和至少第二编号方案(N2; N2')之间可选择地换向, ; N *),不同于第一编号方案(N1),而不中断编号处理。 第一编号方案(N1)涉及用第一编号方案(N1)的唯一序列号(SN1)提供单张纸(S)的第一子集(S 0)的所有印记(P)。 第二编号方案(N2; N2'; N *)涉及提供具有唯一序列号(SN2; SN2)的单张纸(S)的第二子集(S'; S *)的全部或部分印记(P) '; SN *)(N2; N2'; N *)。 还描述了一种用于执行上述片材编号处理的片材加工机。
Abstract:
Il est notamment décrit un procédé de contrôle d'une impression taille-douce, en particulier pour l'impression de papiers-valeurs, notamment de billets de banque. Ce procédé de contrôle inclut la définition sur une plaque d'impression taille-douce (80) de plages de contrôle (150, 151-155 ; 170, 171-179) conçues de manière à permettre notamment d'évaluer les effets de la pression d'impression appliquée lors de l'impression d'un substrat au moyen de la plaque d'impression taille-douce (80) et d'évaluer les effets de la charge d'encre appliquée lors de l'encrage de la plaque d'impression taille-douce (80), lesquelles plages de contrôle (150, 151-155 ; 170, 171-179) sont gravées dans une portion de la plaque d'impression taille-douce (80) afin de produire des zones de contrôle imprimées correspondantes (160, 161-165) sur le substrat. Le procédé inclut par ailleurs la réalisation de mesures dans les zones de contrôle imprimées permettant d'évaluer si la pression d'impression appliquée lors de l'impression du substrat ainsi que la charge d'encre appliquée lors de l'encrage de la plaque d'impression taille-douce (80) sont adéquate ou non.
Abstract:
There is described an intaglio printing press comprising a plate cylinder (8) carrying one or more intaglio printing plates (8c) and an impression cylinder (7) cooperating with the plate cylinder (8), a printing nip being formed between the plate cylinder (8) and the impression cylinder (7). The plate cylinder (8) and the impression cylinder (7) each comprise one or more cylinder pits (8a, 7a) and a corresponding number of cylinder segments (8b, 7b), the plate cylinder (8) and the impression cylinder (7) being in rolling contact with one another during printing operations along their respective cylinder segments (8a, 7b) when no cylinder pits (8a, 7a) are present at the printing nip. The intaglio printing press further comprises a monitoring system (150) designed to monitor a rolling condition of the impression cylinder (7) with respect to the plate cylinder (8) and to provide an indication as to whether or not the rolling condition corresponds to a desired rolling condition, the desired rolling condition being a rolling condition corresponding to true rolling of the impression cylinder (7) with respect to the plate cylinder (8). Also described is a method of monitoring operation of an intaglio printing press.
Abstract:
There is described an adjustable drive unit of a printing press (1; 1*), which adjustable drive unit (25) is interposed between a rotating input body (100) and a rotating output body (23, 200; 23*, 200) to allow selected adjustment of a rotational speed of the rotating output body (23, 200; 23*, 200) with respect to a rotational speed of the rotating input body (100). In an adjusting state of the adjustable drive unit (25), driving into rotation of the rotating output body (23, 200; 23*, 200) is adjusted by means of an adjustment motor (300) of the adjustable drive unit (25). In a non-adjusting state of the adjustable drive unit (25), the adjustment motor (300) is inoperative and driving into rotation of the rotating output body (23, 200; 23*, 200) is performed exclusively mechanically via the adjustable drive unit (25), the rotating output body (23, 200; 23*, 200) rotating at a defined rotational speed with respect to the rotating input body (100). Also described is a printing press, especially an intaglio printing press (1;1*) comprising such an adjustable drive unit (25).