From
Ceramic Mug Group,Color changing mug using thermal process - the need in ceramic handicraft surface coating layer of some special requirements of transparent resin with a printer to paper flowers special hot sublimation ink printing ink, or special paper in through certain pressure and temperature heat transfer, and the good will of ceramic layer on the glass.
Color changing mug using heat sensitive ink color temperature, because of its color process, say again "reversible can change color ink. Extinction temperature inversion as temperatures rise, showed a bottom layer.
