TwinColors? Patches: Two Layers of Micromirrors for More Sophisticated Security

As noted in last month’s Currency News, in the announcement of its record results for last year, Giesecke+Devrient reference TwinColors® as one of its latest currency innovations. So, what is it?

TwinColors® Patch is a revolutionary micromirror technology which doubles the security impact of the whole patch, of both the inner design motif (image, number or letter as a motif flip) and independently the outer dynamic effect.

Micromirror-based security features have been widely adopted since the launch of Louisenthal`s RollingStar®, and subsequent developments of RollingStar® LEAD and RollingStar® Patch. Intuitive public authentication and aesthetic appeal are increasingly becoming key focus areas for issuers, says the company, and this technology has been used on their medium to high denomination banknotes, with no record of counterfeits.