Note printing device

Abstract

The invention discloses a note printing device, which comprises a paper feeding part, a printing part, a post-printing processing part and a paper discharge part, wherein the printing part comprises a letterpress unit, a color combined number printing unit and a through printing unit, wherein the post-printing processing part comprises a magnetically direction-finding unit, an ink-free belling unit and a dual-face coating unit; and all printing units of the printing parts are arranged around a central impression cylinder at intervals. The note printing device provided by the invention combines letterpress printing, porous plate printing, horizontal code arrangement, vertical code arrangement, magnetization, belling, coating and optical drying together, which means the eight flows are carried by one machine which is not bigger than a gravure press; several sets of paper feed and discharge parts are removed from the structure, so the manufacturing cost is further reduced; and compared with the single machine production, the note printing device occupies a small area and the production process is short.

Description

technical field [0001] The invention relates to a banknote printing device, in particular to a comprehensive banknote printing device which integrates multiple functions and is suitable for printing banknotes. Background technique [0002] With the development of banknote printing technology, in order to realize the first, second and third-line anti-counterfeiting measures, higher requirements are put forward for project engineering, such as new topics in the application of various optical anti-counterfeiting inks and the improvement of the characteristics of machine-readable inks; screen printing Magnetization treatment after printing and how to process after printing, improve the anti-counterfeiting level of banknotes and double-sided coating after printing, protect the ink color of the pattern ink layer and sterilize, etc. At the current stage, the application of inks with optical and physical characteristics needs to be realized through different printing process facilit...

AI Technical Summary

Problems solved by technology

However, the pattern of missing printing products does not have the unique anti-counterfeiting pattern of banknotes. In response to this problem, the international banknote printing industry has proposed a solution - to use engraving gravure to emboss without ink on the missing printed solid pattern, that is, to emboss the missing printing ink layer upper, embossed embossed or invisible text

Although this method solves the anti-counterfeiting problem of the plate pattern of the missing printed product, if the banknotes encounter humid air or water during circulation, the fibers of the banknote paper will expand and stretch, causing the pressed convex and concave lines to flatten or collapse. Disappearance, that is, the durability of the printed product after embossing cannot be guaranteed, which may cause misjudgment of banknotes in circulation, resulting in the adverse consequences of judging the authenticity of the counterfeit

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