FIELD: engineering of devices for ensuring protection from falsification.
SUBSTANCE: invention claims durable devices for ensuring protection from falsification are claimed, which are resistant to chemical corrosion and worsening of mechanical properties, and valuable products, protected from falsification, which use such devices. Due to durable device for protection from forgeries of the invention, the opposite longitudinal edges, adjacent to informational layer, are pressurized, thus preventing access of materials which cause corrosion and/or worsening of mechanical properties to the layer through pressurized edges. In preferred variant of realization at least a part of informational layer is fully encapsulated, thus affording chemical corrosion immunity to the section or layer and information carried by them.
EFFECT: provision of long-term protection.
2 cl, 12 dwg
Authors
Dates
2008-04-20—Published
2003-08-19—Filed