PROTECTIVE ELEMENT IN FORM OF MULTILAYER FILM BODY Russian patent published in 2009 - IPC B42D15/10 

FIELD: technological processes.

SUBSTANCE: invention is related to protective element in the form of multilayer film body, protected element with similar protective element and method for manufacture of such protective element. Film body comprises replicating varnish layer and structure applied on it from thin-film and interference layers, which comprises at least one separating layer for area of visible light and is arranged with the possibility of creation of the first effect of colour shift depending on angle of vision by means of interference. In plane made by axes of coordinates X and Y, relief structure is moulded in border surface between replicating varnish layer and above-mentioned structure on the first section of protective element. Relief structure is arranged so that thickness t₀ of structure from thin-film and interference layers in reduced in zone of relief structure with possibility of suppression of the first effect of colour shift of structure from thin-film and interference layers. At that on the first section of protective element, in which relief structure is moulded, the first effect of colour shift of structure from thin-film and interference layers does not occur, and in the second section of protective element, in which relief structure is not moulded, the first effect of colour shift occurs created by structure from thin-film and interference layers.

EFFECT: protective element has high level of resolution, which provides for high extent of protection against replication and counterfeit.

40 cl, 17 dwg