ELEMENT FOR PROTECTION OF DOCUMENT FROM FORGERY Russian patent published in 1998 - IPC

FIELD: printed matter of special purpose. SUBSTANCE: element has base of transparent material and successively located layer with protecting pattern, the first layer of thermosetting adhesive and protective layer. In this case, located between base and layer with protective pattern is the second layer of thermosetting adhesive whose thickness is smaller than the first layer of thermosetting adhesive. Protecting pattern may be made in the form of hologram. Located between layer with protecting pattern and the first and second layers of thermosetting adhesive may be the first and second layers of adhesion regulator, respectively. Each layer of adhesion regulator my be either continuous, or in the form of separate uniformly distributed sections in the form of strips or squares. In this case, sections of the first layer of adhesion regulator do not overlap the respective sections of the second layer of adhesion regulator. EFFECT: higher efficiency. 5 cl, 4 dwg