FIELD: printing.
SUBSTANCE: invention relates to a method of manufacturing counterfeit-proof paper for production of counterfeit-proof documents such as banknotes, identity documents based on plastic cards or the like, with a protective element made in the form of a strip, which is embedded into the counterfeit-proof paper and directed at least on one opening in the counterfeit-proof paper on one of the surfaces of the counterfeit-proof paper. The mesh cylinder of a cylinder paper-making machine takes the pulp in the form of the fibre-water slurry from the tub. In addition, the invention relates to the mesh cylinder of a cylinder paper-making machine to manufacture the respective counterfeit-proof paper. According to the invention, on the mesh cylinder for each unit of use at least one first raised platform is applied, which is formed by a closed frame which encloses at least one recess. On the mesh cylinder at least one other raised platform is applied, which performs direction of the protective element made in the form of a strip in the transverse direction so that the protective element made in the form of a strip is placed on the first raised platform and does not protrude or protrudes only slightly beyond the first raised platform on its both longitudinal sides, at that inside the first raised platform the fibre-water slurry cannot agglomerate.
EFFECT: improvement of protection.
10 cl, 7 dwg
Authors
Dates
2015-01-10—Published
2011-07-15—Filed