Thermal transfer ribbons (TTR), suitable for the most demanding applicationsResistant to: UV light, moisture, abrasion, most chemicalsDuraLabel Premium Ribbon offers the necessary durability and print definition for reliable use with many DuraLabel supplies. Labels and signs printed with this general-application ribbon feature superior quality thermal transfer text and graphics. Inks wont smudge or scratch, even when placed in harsh environments. Testing has shown lasting resistance to most chemicals, UV light, moisture and abrasives.Premium Ribbons are not recommended for use with all supplies. Be sure to check the individual supply type to determine ribbon compatibility.