Preparation method of printing ink for automobile tempered glass

The invention provides a preparation method of ink for automobile tempered glass, and belongs to the technical field of ink preparation. The preparation method comprises the following steps: respectively carrying out double bond and sulfydryl click reaction on 3, 6-dimercapto pyridazine and 2-(tributyltin alkyl)-2-methyl acrylate and bisphenol A epoxy vinyl resin; the bisphenol A epoxy resin containing pyridazinyl and stannyl is obtained; according to the prepared printing ink for the automobile tempered glass, after high-temperature sintering, the low-melting-point glass powder in the printing ink gradually melts and flows, and gaps among resin molecules are filled with tin oxide crystals, so that the surface layer of an enamel layer is most compact and free of the phenomena of cavities and the like; the structure can improve the adhesion resistance of the printing ink, so that the printing ink is more suitable for being used as a surface coating of automobile tempered glass; the glossiness of the glaze laye