1. After printing, good thermal paper can be stored for 3-5 years (under normal temperature and under the standard of preventing sunlight), and even high-efficiency thermal paper that can be stored for ten years, but if the thermal coating is The ingredients are unscientific, and some will slowly subside in more than ten days.
2. If you want to keep it for a long time, it is directly related to the quality of the thermal paper. If the coating of the thermal paper is not symmetrical, it will cause the color to be dark in some areas and light in some areas. , Immediately endanger the printing effect. If the organic chemical composition of the thermal coating is unscientific, the storage time of the copy paper will become very short.
3. You can burn the reverse side of the paper with fire. If the color of the paper is brown after being heated, it indicates that the product quality of the thermal paper is not good and the storage time is short. If it appears black and green, and the color is even, it indicates that the quality of the paper is good and can be stored for a long time.
Post time: Aug-26-2022
