A team of chemists in China has discovered a single compound that has a colour-modified afterglow.
According to Chemistry World, this technique could protect banknotes...
Laser marking of ID documents is increasing. Mandated in European Union driving licences, selected by governments on every continent to personalise over one fifth...
In this article, Malcolm Knight discusses the history, technology and status of the banknote feature termed Optiks™. The journey has not been straightforward and...
Optically variable devices have become a ubiquitous part of everyday life, with holographic, opalescent and colour-shifting features adorning a multitude of products. Of these,...
ID documents are valuable and must be protected against criminal attempts to counterfeit or tamper with them. The personal data, and in particular the...
With the introduction of a multitude of technological innovations in the banknote industry over the past decade, many banknote designs of our time tend...
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