摘要 |
A SECURITY ELEMENT, SUCH AS A THREAD, STRIP AND THE LIKE, FOR SECURITY DOCUMENTS IN GENERAL, WHICH COMPRISES A FLEXIBLE BACKING LAYER (1) THAT HAS, ON AT LEAST ONE FACE, A LAYER (2) OF METALLIC MATERIAL PROVIDED WITH REGIONS IN WHICH THE THICKNESS OF THE METAL IS LESS THAN 70% AND MORE THAN 25% OF THE THICKNESS OF THE LAYER OF METALLIC MATERIAL OF THE NEARBY PORTIONS, AND FURTHER COMPRISES A LAYER (3) OF EMBOSSED HOLOGRAPHIC LACQUER BETWEEN THE BACKING LAYER (1) AND THE LAYER (2) OF METALLIC MATERIAL.(FIG 2) |