Polyvinyl alcohol PVA is a water-soluble polymer with a wide range of uses. Because its performance is between plastic and rubber, it has unique strong adhesion, film flexibility, smoothness, oil resistance, solvent resistance, protective colloid, gas barrier, abrasion resistance and special treatment. Water resistance, non-toxic and harmless, so in addition to being used as fiber raw materials, it is also widely used in the production of coatings, adhesives, paper processing agents, emulsifiers, dispersants, films and other products. The application range covers textiles, food, Medicine, construction, wood processing, papermaking, printing, agriculture, steel, polymer chemicals and other industries.