Water faded ink protection printing ink

The invention relates to the technical field of chemical industry, ad in particular relates to a water faded ink protection printing ink for touch screen glass printing protection window positions. The printing ink is prepared from the following components by weight: 25-50 parts of modified waterborne polyester acrylate resin, 20-45 parts of distilled water, 10-20 parts of an azeotropic agent, 1-3 parts of an aqueous thickener, 1-3 parts of a waterborne defoaming agent, 2-5 parts of silica, and 1-3 parts of an adhesion promoter. Compared with the prior art, the invention has the beneficial effects that the protection printing ink not only can protect the touch screen glass from scratch and smudginess by other objects but also can realize fast cleaning, so as to improve production efficiency and ensure the quality of production.