Spectacular security

Window and patch strike a perfect balance

Assimilating appealing images and security features on a small banknote used to be a challenge for any designer. But not any longer. With varifeye ColourChange Patch technology, Louisenthal has devised a highly innovative and attractive solution. In direct light, the main motif shimmers in sophisticated gold, while in translucent light the LaserCut™ window appears in intensive blue. This effect is visible from both sides of the banknote. When you turn the note, the back shows a contrasting shape and size, created by laser to a design which is also spectacular and easy to authenticate. Minimum space, maximum impact!

Your benefits

  • At-a-glance recognition and authentication for the public
  • Highly secure with front-to-back design effects
  • Extremely difficult to counterfeit due to technical complexity
  • Also available with Hybrid ADDvance and all our other substrates
  • Free choice of patch shapes, designs and colours
Under the surface

The patch is placed over a transparent window integrated in the banknote. This window – designed using Louisenthal’s LaserCut™ or Filigram® punching technology – is extremely secure. It also has a major benefit for customers in that it supports any design they choose, no matter how intricate. The varifeye ColourChange patch can include a range of features such as:

  • Micromirroring for a vivid glistening effect on the surface of the image
  • 3D-like impression option ideal for representing animals, portraits or buildings
  • Intensive colour change when looking at and through the window

Explore our Secure Windows

Our 360° view shows our state-of-the-art patch technology. The varifeye® ColourChange patch saves space on the banknote, enables unique designs and is easily recognizable. Our patches can be applied with different application systems.

Get in touch

Do you have any questions, requests or suggestions about our products or solutions? Please feel free to contact us. We would be happy to be of assistance.