Thermal Paper 80*80mm Length 49m

80*80mm Length 49m
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.