METHOD FOR VARNISHING SECURITY DOCUMENTS, ESPECIALLY INTAGLIO-PRINTED SECURITY DOCUMENT SUCH AS BANKNOTES

摘要

THERE IS DESCRIBED A METHOD FOR VARNISHING SECURITY DOCUMENTS, ESPECIALLY INTAGLIO-PRINTED SECURITY DOCUMENTS SUCH AS BANKNOTES, WHEREIN BOTH SIDES OF THE SECURITY DOCUMENTS ARE COVERED BY A PROTECTIVE VARNISH. THE METHOD COMPRISES THE STEP OF APPLYING A THICKER LAYER OF PROTECTIVE VARNISH ON A SIDE OF THE SECURITY DOCUMENTS WHICH EXHIBITS A GREATER SURFACE ROUGHNESS, ESPECIALLY THE SIDE WHICH IS OPPOSITE TO THE SIDE OF THE SECURITY DOCUMENTS WHICH WAS LAST PRINTED BY INTAGLIO PRINTING. ALSO DESCRIBED IN A VARNISHING MACHINE FOR CARRYING OUT THE ABOVE METHOD. FIGURE 3