Ultimate Adhesion: The maximum adhesion possible from a pressure sensitive adhesive.
UPC: Symbols in form of a bar code on the print surface of the label.
UV Ink: Solvents, 100% solids ink that is cured by ultraviolet radiation.
UV Varnish: Lacquer or varnish usually applied over the printed web used as a protective layer that is cured by exposure to high intensity ultra violet light source (100% solids).