The flat oxidation signage is an aluminum plate polished by mechanical or electrochemical methods, and then anodized with sulfuric acid as an electrolyte to form a colorless and transparent oxide strand having a capillary conical groove structure and a label forming pore. The rate is large and has a strong adsorption capacity. After passing through the adhesive, it is exposed and developed with a photographic plate, and then dyed and dried with a living dye (or acid dye, direct dye) to fix the dye molecules inside the pores of the oxide film, and after sealing and dyeing, the desired Signage.

The surface of the oxidation signage plate is used to make the bottom plate effect. According to the different processing techniques before the anodization, the bright type (machine throwing-de-oiling-electrolytic polishing-de-filming) and sandblasting type (alkali degreasing-sand-blasting-dip board) can be obtained. ), drawing type (machine throwing - silking - throwing - left film). According to different finish requirements, it can be used as needed. Flat oxidation signage, sign making has high work efficiency, clear writing, convenient dyeing, and wear resistance, oil fastness, light fastness and other properties, especially the color of oxidation dyeing is bright, transparent, thin and even and delicate, on the nameplate and signage of the product. The production of panels has been widely used.