UV protection
The RFID key-fob can be UV protected. The image will not be visible under normal conditions. But if you place the key fob under a UV lamp, then all the printed data will glow.
Using a special UV ink, you can apply a logo, any text or highlight an image. Printing can be done on the entire surface of the key fob or only on part of it. The image is clear and resistant to fading.
UV protection not only looks attractive, but also protects against copying. It will be difficult to fake an RFID key-fob with UV printing.