An edible cake printed directly on the surface of the cake with a special food printer and food coloring. Another way is to print the image on special edible sugar paper or rice paper with a special digital cake printer, and cover it on the cake after cutting.
From the electromechanical point of view, it is to change ordinary paper into glutinous rice paper, change the ink in the ink box into food pigment, and then change the print head.
Glutinous rice paper is an edible film. Transparent and tasteless, with a thickness of 0.02~0.025mm, it melts at the entrance. It is made by mixing starch, gelatin and a small amount of lecithin, casting into a film and drying. It is mainly used for the inner packaging of candy, pastry or medicine, to prevent it from sticking to the outer packaging paper, and also to prevent moisture. Another special purpose is to eat bitter melon powder, pills, pills and so on.