FIELD: manufacturing technology.
SUBSTANCE: invention relates to security element (1) comprising semi-transparent layer (20) containing binder (40) and at least goniochromatic metal particles inside the binder in a concentration providing layer (20) with the semi-transparency thereof.
EFFECT: security element is disclosed.
32 cl, 23 dwg
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Authors
Dates
2018-08-23—Published
2014-12-03—Filed