Method for preparing photocatalytic mouth mask

The invention discloses a method for preparing a mouth mask and particularly relates to a method for preparing a photocatalytic mouth mask. The method for preparing the photocatalytic mouth mask includes the steps that cloth is placed in traditional Chinese medicine liquid and soaked for 30-45 min, taken out, cleaned in clean water at the temperature of 25-35 DEG C, placed into a drying box and dried, and a mouth mask inner layer and a preprocessed mouth mask surface layer are obtained for use; 2-4 mass parts of silver-loading nano titanium dioxide powder, 1-2 mass parts of nano selenium powder and 1 mass part of nano silicon dioxide powder are obtained and mixed evenly, 8 mass parts of deionized water and 10 mass parts of anhydrous ethanol are added and evenly mixed, and a photocatalyst solution is obtained for use; the preprocessed mouth mask surface layer is placed in the photocatalyst solution, soaked and taken out after being soaked for 8-12 hours and dried in the shade keeping out of the sun, and the mouth mask surface layer is manufactured; the mouth mask surface layer and the mouth mask inner layer are sewn into the mouth mask. The mouth mask prepared through the method can be repeatedly used, does not contain adhesives, and is high in degrading speed and good in effect.