TO carbon tape is a thin carbon tape, mainly used in printing labels, bar codes and so on. TTO is an abbreviation of "Thermal Transfer Overprint", meaning thermal transfer printing. TTO carbon tape is usually made of a mixture of resin, toner and adhesive materials, with a fine layer of toner on the surface, which can be attached to paper or other materials to form text or images. The advantages of TTO carbon belt are high printing clarity, stable printing quality, wide application range, etc., the disadvantage is that the cost is relatively high