Principle of printing on plain paper thermal paper is based on the particle powder coating, composition is colorless dye phenol or other acidic substances, with the film apart, in heating condition, film melting, powder mixed color reaction, print out the words or patterns.
2, the technical parameters
The paper type heat sensitive paper
The paper format 57*40mm
The thickness of the paper 0.06mm-0.1mm
Paper color white or color
External heat sensitive layer
The service life of 3 months -10 years
3, quality identification
Finger nail gently on thermal paper, a scratch, will have the line appears, is the thermal paper have thermal coating surface scratches, the deeper the color, the printed words more clear; if the paper is white, explain coating and thermal protective coating of paper is not reasonable, added a fluorescent powder too much, good paper should be slightly green,
