Multi-Color Overprinting Method by Gravure offset Printing Units for Security Currency Effect

摘要

The present invention relates to a method by gravure offset printing multi-color superimposed printing unit for printing banknotes forgery prevention effect as, more particularly, to the figures shown in the bill, and the intaglio effect of the gravure printing plate, landscape, patterns, according to the printing method to have the effect of preventing forgery of bank notes as configured by printing a pattern in the elongated line and the dotted line alphanumeric, etc. , a gravure offset printing unit for each color of the pattern comprising doedoe, the number and order of the superposed color pattern, depending on the depth of corrosion of each color pattern yosim each gravure offset printing unit is further comprises a plurality of gravure offset printing unit , in order of the gravure offset printing ink to fill the high-viscosity corroded main portion of the gravure printing plate cylinder according to the plate making corrosion adopted bills circle also a transition to the blanket cylinder in the printing unit print to print after doedoe film, adjacent to a gravure offset printing unit and that multi-level printing feature on its configuration. According to the multi-color superposition printing method according to the gravure offset printing unit for printing banknotes forgery prevention effect proposed by the present invention can use a number of gravure offset printing unit 100 to obtain the banknote forgery prevention effect by multi-step printing printing. ;