Blue4est® is guaranteed to be free of chemical developers and can easily be used in any conventional thermal printer. Instead of a chemical reaction to heat, the emergence of text on our new Blue4est® thermal paper is a purely physical reaction. The paper’s opaque functional layer turns transparent due to the effects of heat, and the black layer beneath it is revealed. It is completely eco friendly product.
Blue4est®, the first thermal paper certified for direct contact with food, has superior printability and a long print life (> 35 years).