Self adhesive Labels with security ink
Special inks made with pigments that give one colour or another depending on the visual angle, guaranteeing multi-level security.
The first security level consists in a non ambiguous, simple change of colour seen by the public by changing the angle of visualization.
The second level is reserved to those appointed to verify the authenticity of the label, at sales points, customs, etc. This check is carried out by means of an optical filter and consists of a polarization effect of the light which is visible even in conditions of scarce illumination.