FIELD: protective elements for documents.
SUBSTANCE: protective element contains at least two adjacently positioned zones without metallic materials. One of aforementioned zones has a layer of material, light refraction of which changes with change of light falling angle. Another zone has a layer of material with constant reflection. At least one of aforementioned zones forms sections without material for forming graphic markings and signs, which may be visually detected.
EFFECT: high degree of protection of securities from forgery with low costs of manufacture of protective element.
2 cl, 4 dwg
Authors
Dates
2007-10-27—Published
2003-03-28—Filed