![]() This indirect or collect intaglio printing machine therefore serves especially for producing the safety background of banknotes, which, as is known, consists of fine colored lines and of other fine colored elements, and, if appropriate, also at the same time for producing the main design of banknotes. Moreover, since the color-collect cylinder is provided with a smooth elastic surface, the stencil rollers, which define the various color zones and which cooperate with the elastic surface of the color-collect cylinder, can consist of a harder material than hitherto, so that the finest possible relief-like regions, which experience virtually no deformation when pressed against the color-collect cylinder, can be produced. One advantage of this intaglio printing machine, as compared with a conventional intaglio printing machine having a direct inking of the printing plates, is that a perfect register between the various color zones on the intaglio printing plate can be obtained in a simple way. In this machine, the intaglio printing plates are not inked with various colors directly by the stencil rollers, but the zones of differing color are first transferred from the stencil rollers onto the color-collector cylinder, are collected there in register and only then passed from this color-collector cylinder onto the intaglio printing plates. lithographic to letter pressĪn intaglio printing machine of this type is known from U.S. Y10S101/49- Convertible printing press, e.g.Y10S- TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS AND DIGESTS.Y10- TECHNICAL SUBJECTS COVERED BY FORMER USPC.Y- GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS AND DIGESTS.B41F9/02- Rotary intaglio printing presses for multicolour printing. ![]() ![]()
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