Duratran I Thermal Transfer Paper Label - Permanent Adhesive - 101.6mm x 101.6mm - Labels per Roll: 480 - Rolls per Box: 12 - Perforation: Yes - 40mm core - 110mm OD - Recommended Ribbon: TMX 1310 - Desktop Printers. Intermec direct thermal paper label stock is available in an assortment of popular sizes for high-quality, cost-effective printing across multiple environments and applications. Direct thermal media does not require a ribbon to print, making it ideal for applications in which confidentiality is critical. Direct thermal media is coated with a heat-sensitive layer which is imaged through direct contact with the print head. The result is a pattern of black dots forming text, bar codes, or graphics.