PAPER FOR SECURITUES WITH COLOUR MARKING

摘要

The paper is made for printing securities or other valuabledocuments. It contains resinous substrate sheet on which signs areprinted. On both sides of the resinous substrate sheet, papersheets are laid using suitable adhesive. In the laminated paperfor securities the signs printed on the substrate sheet areundistinguishable when looked at in reflected light but are seenwhen light of the visible spectrum passes through it. From thepaper for securities valuable documents can be made in whichcomplex of signs are printed at least on one of the external sidesof the paper sheets so that the signs on the substrate and thesigns on the surface would form a comprehensive image when thedocument is seen in passing through light. A method is alsodescribed for making the paper for securities and valuabledocuments.31 claims, 4 figures