The flour made paste is used as adhesive, to which antiseptic agent, talc powder, gypsum powder, chalk powder, pigment and perfume are added, it may be made in the form of liquid or solid block. This coating has the advantages of strong sticking ability, thick coating layer, no viscous feeling during brushing, low cost and easily availabe materials. Its prepn. is simple: the flour is made into paste, the liquid coating is prepared by adding the other raw materials to the paste according to recipe, and then stirred uniformly; the solid block can be obtd. after adding the other raw materials, stirring into a mortar and shaping with extruder. |