Thermal transfer labels offer world-class barcode printing for all applications. In thermal transfer printing, a hot print head melts a wax ribbon onto the blank printing label. The result is a rugged, permanent print that can take a beating in shipping. Smith Corona thermal transfer labels are the finest and most affordable in the world. They require a thermal ribbon in addition to the label itself. The labels come in white and multiple colors, in both permanent and removable adhesive. The wax ribbons print a strong, high-contrast black.