Hueck Folien Launches TRILUMIC® in Thread Format

The UV-printable TRILUMIC® holographic stripe first entered the banknote printing market three years ago. Now owners of the technology, Hueck Folien ¹, wants to widen its appeal in thread format.

The National Bank of Cambodia was the first central bank to put the TRILUMIC stripe on its 15,000 riel commemorative banknote in 2019. For a commemorative banknote the volumes were high, partly because the banknote is officially legal tender and is circulating in the country.

The stripe was integrated in the banknote concept and applied on Landqart’s Durasafe substrate.

The uniqueness of TRILUMIC on a holographic stripe is that it is possible to print a full colour halftone image in high resolution and registration.

More recently, the National Bank of Cambodia launched the second banknote with a 15 mm TRILUMIC stripe, the 30,000 riel, now also in circulation.

15,000 and 30,000 riels with TRILUMIC features.

A new dimension for UV printing on security threads

According to the company, using the TRILUMIC technology for banknote threads opens up completely new options for the banknote designer. The feature can be applied to all kinds of thread types and widths. TRILUMIC adds a particularly attractive function to different technologies including printed, over metallised, and ColorSwitch™ threads.

What makes the TRILUMIC feature different to other UV-designs on banknote threads is that, as opposed to spot or rainbow colours, TRILUMIC allows you to create very precise and customised designs in text, motifs and colour overlapping. The TRILUMIC feature enables you to create a very bright UV white and negative text.

According to Hueck Folien, TRILUMIC creates completely new designs for banknote threads. For instance, if the designer plays with the demetallised area of the thread, very distinctive image elements can be generated by switching on the UV light when suddenly a much wider thread in brilliant UV illuminates. Invisible in daylight, extremely brilliant true-colour halftone images appear under UV light.

Taking it to the next level Holographic elements in foils and threads have come a long way since control of the rainbow colour spectrum was the most prominent feature. Through the latest developments in hologram embossing and the trend to much smaller nanostructures, completely new features are now available.

Austrian Alps (© Hueck Folien).

Austrian Alps is designed together with Hueck Folien’s hologram-origination partner IQ Structures. On their latest holographic stripe, the Austrian Alps are shown as a nanoengineered security feature. It is a combination of 3-D-white embossing, bright and colourful elements and complex moving features.

1 - TRILUMIC® is a trademark resulting from cooperation between HUECK FOLIEN and Banque de France.