Optically Variable Ink with Embossing
Integrated optically variable security element, which comprises:
The result provide colour change effect when tilted, that is enhanced by a latent image produced by embossing which is not visible without tilting (fig. 1).
a
b
c
Fig. 1. Optically variable ink with blind embossing at different angles of view. 1 000 Mozambique Meticais (2006):
a – without tilting; b, c – tilted (different angles)
The element may also comprise of an iridescent ink patch, which provides an additional pearlescent sheen when the banknote is tilted (fig. 2).
a
b
c
Fig. 2. Optically variable ink with blind embossing and iridescent ink patch at different angles of view. 50 Bahamian Dollars (2006):
a – without tilting; b, c – tilted (different angles)