Objective:To optimize film-forming materials and additives of Zizhu Zhixue film coating agent with a satisfactory film-forming property.Method:Film-forming materials and additives were selected by synthetic weighted mark method with film-forming time and appearance quality as evaluation indexes.Result:Polyvinyl alcohol(PVA1788-PVA124 1∶3) dissolved by 90% ethanol as film-forming material,and added glycerin 1 mL and Tween-80 0.2 mL.This prepared Zizhu Zhixue film coating agent had advantages of short film-forming time and film-forming prop...