UV Printing — Horse of a Different Color

As for the UV learning curve, it’s ongoing, reports Marrs. “We have to recalibrate our plate- setter to accommodate the different curves for UV, and cut plate curves back to allow for UV dot gain. On-press, we use a different fountain solution, different washup solution, different blankets. Blankets often can be reused, but the ink-water balance is critical; you don’t have much latitude.”