Because there are many labels, it must be able to withstand the test of time, be invariant for a long time, the text must be stored for a long time, it cannot fade, it cannot be worn out due to contact with solvents, it cannot be deformed and discolored because of higher temperatures, etc., so it is necessary to adopt a special Material printing media and printing materials to ensure these characteristics, ordinary inkjet printing technology can not be achieved, laser printing can not be achieved, and the effect of needle printing and the original design can not meet the requirements, so the emergence of thermal transfer technology. Thermal transfer technology, simply put, uses a special carbon ribbon to transfer the toner coating on the carbon ribbon to paper or other types of materials through a heating method similar to the working principle of a fax machine print head. In addition, because the coating material on the carbon ribbon can be selected according to needs, it has strong adhesion, and the choice of printing media can ensure that the printed handwriting is not affected by the outside world. And this heating process, how to heat, can be handed over to the computer to control. At present, because a variety of software has been developed to print labels, it is very convenient for users, especially general All labels need to generate barcodes, so the generation of barcode symbols has become an indispensable tool for such software.
