Metallic Effect Metalix
An ink containing pigments with a high index of refraction which reflect incident light and produce metallic sheen. It was developed by Innovia Security company for banknotes on the Guardian polymer substrate. As a rule, the Metalix ink is used to produce spot printed image elements. Metallic effect is viewed in reflected light on both sides of the banknote provided that the observation and illumination angles relative to the perpendicular are equal. Unlike the GOLDswitch element, Metalix color range includes red, gold, copper, silver, blue, green, violet and salmon.
Observation and illumination of Metalix element. Scheme:intense sheen is observed when the angles of illumination and observation are equal
a
b
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d
e
20 Polish Zlotych (2014):
a — front side of the banknote. Guardian polymer substrate; b — reverse side of the banknote. Guardian polymer substrate; c — spot printed image elements executed in gold and blue Metalix ink. Both observation and illumination angles are 0 degrees; d — ink pigments viewed in reflected light; e — the same image viewed in transmitted light