Wax is a type of ribbon used in the marking industry. It consists of a carrier layer that is coated with a layer of wax. When printing with wax film, the ribbon is heated by a print head, which melts the wax and transfers it to the label. Wax film is commonly used for printing on paper labels and provides good print quality at slower print speeds. It is a cost-effective option for printing barcodes, text and simple graphics. However, the durability of printing on wax film may not be as high compared to other types of ribbon.