SECURITY ELEMENT FOR VALUABLE DOCUMENT COMPOSED OF SANDWICHED POLYMER STRUCTURE WITH MAGNETIC PLY AND ARTICLE WITH SECURITY ELEMENT Russian patent published in 2014 - IPC B32B15/00 B42D15/00 

FIELD: process engineering.

SUBSTANCE: set of inventions relates to security elements designed to protect documents, securities, polygraphic products etc, against counterfeit. Security element comprises outer transparent polymer base with transparent lacquer ply secured thereto and provided with micro relief with thin layers of reflecting and magnetic materials applied thereto. External transparent laminar ply is bonded to said layers with the help of adhesion layer. Depth of micro relief makes 0.01 mcm to 0.5 mcm. Micro relief represents a system of alternating magnetic strips. Security element cam additionally comprises transparent protective breakable ply. Sais security element can comprise two or more plies of magnetic material. Note here that latent info in every magnetic ply differs from latent info in other magnetic layers.

EFFECT: security element resistant to mechanical, chemical and thermal effects, reliable identification.

8 cl, 1 dwg