Security sheet with a ribbon having a zone of reduced opacity

Details Security sheet with a ribbon having a zone of reduced opacity Security sheet with a ribbon having a zone of reduced opacity

D - Textiles, Paper

21

H

D21H 21/42 (2006.01)

Patent

CA 2720662

The invention relates to a sheet (1) comprising a fibrous substrate (2) and at least eon ribbon (3) defining at least one zone of reduced opacity (4), the sheet (1) having at least two complementary security elements (5, 6) situated respectively to either side of said at least one ribbon (3) the whole of which may be transparently viewed due to the zone of reduced opacity (4).

La présente invention concerne une feuille (1) comportant un substrat fibreux (2) et au moins un ruban (3) définissant au moins une zone d'opacité réduite (4), la feuille (1) comportant au moins deux éléments de sécurité (5, 6) complémentaires situés respectivement de part et d'autre dudit au moins un ruban (3) et dont la complémentarité est observable en transvision grâce à la zone d'opacité réduite (4).

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