How to identify the advantages and disadvantages of thermal paper?
Thermal paper is the printing paper specially used for thermal printers and thermal fax machines. Its quality directly affects the printing quality and storage time, and even affects the service life of printers and fax machines.
The quality of thermal paper on the market is mixed, and the national standard has not yet been issued, and many users are not sure how to distinguish the quality of thermal paper, which provides convenience for many stores to produce and sell low-quality thermal paper, resulting in losses for users. The light storage time becomes shorter, the handwriting is blurred, and the heavy damage to the printer. This article tells you how to identify the quality of heat-sensitive paper to avoid being cheated again. Thermal printing paper is generally divided into three layers, the lowest layer is the paper base, the second layer is the thermal coating, and the third layer is the protective layer. The thermal coating or protective layer mainly affects its quality,
If the coating of thermal sensitive paper is not uniform, it will lead to a significant decline in the printing quality due to the deep color in some places and the light color in some places. If the chemical formula of thermal sensitive coating is not reasonable, it will lead to a very short storage time of the printing paper. The good printing paper can be retained for 5 years after printing (under normal temperature and avoiding direct sunlight), and even the long-term thermal paper can be retained for 10 years. However, if the formula of thermal sensitive coating is not reasonable, Maybe only for a few months.
The protective coating is also critical to the storage time after printing. It can absorb a part of the strong light that causes the thermal coating to produce chemical reaction, slow down the deterioration of the printing paper, and can protect the thermal sensitive elements of the printer from damage. However, if the coating is not uniform, it will not only greatly reduce the protection of the thermal sensitive coating, but even the small particles of the protective coating will fall off during the printing process and rub the thermal sensitive elements of the printer, Cause damage to the print thermistor.