Tech Talk n°14 Why do fluo pigments fade after UV exposure?

We know that fluorescent pigments have the ability to absorb high energy, invisible light and to re-emit this energy into the visible light spectrum, creating these very vibrant, bright colours.

Now, the very essence of fluorescence itself contributes to the fading over time, so the continuous absorption and re-emission of light will gradually degrade the pigment molecule and cause what we call photodegradation magic.