Intermec Thermal Topcoated. Product colour: White, Material: Paper, Print technology: Thermal transfer. Core diameter: 4 cm. Labels per pack: 1500 pc(s). Paper dimensions: 43mm x 24.79mm 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.