Tag - how to test thermal paper

How to Test The Thermal Paper Quality

  Appearance: If the thermal paper is super white, it means that the protective coating and thermal coating of thermal paper are unreasonable, Too much phosphor is added, The better thermal paper should be slightly greenish. If the thermal paper looks uneven, it means that the thermal paper coating is uneven, If the thermal paper seems to reflect strong light, too much phosphor is added, and the quality is not very good. Fire roasting: The method of roasting with fire is [...]