Thermal Paper 57*50mm Length 18m

57*50mm Length 18m
The production principle of thermal paper is to apply micro-particle powder on ordinary paper base. The composition is colorless dye phenol or other acidic substances, separated by a film. Under heating conditions, the film melts and the powder mixes to react with color. The colored writing on thermal paper is unstable and easy to fade, making the content of the document difficult to recognize. Commonly used lottery tickets are all made of thermal paper. Ordinary thermal paper is not suitable for long-term storage, but good thermal paper can be stored for 30 years or even longer.