The printing industry today uses a vast number of inks, pigments, and dyes, all of which have their specific functions and purpose. But the life span of the printed piece and the need to retain vivid color — to keep it from fading over a certain time period — should be in direct correlation to its intended end use. The need to invest in a high-quality colorfast ink for a weekend sales ad wouldn’t make sense economically, but more so for the reproduction of a piece of art that will hang on someone’s wall that will span years. A protective ultraviolet (UV) coating will often be used, not only to …