As a high-tech environmental protection material, water-soluble film products have the following characteristics: water-soluble, water-soluble speed can be designed, non-toxic and no pollution; tensile strength, tension, etc. are equal to or better than traditional plastic films; high transparency, good gloss; oil resistance Good solvent resistance, heat sealable and printable; excellent antistatic properties. As a novel green packaging material, water-soluble plastic packaging film is widely used in the packaging of various products in Europe, America and other countries, such as pesticides, fertilizers, pigments, dyes, detergents, water treatment agents, mineral additives, Water-soluble pesticide packaging bags such as detergents, concrete additives, chemical reagents for photography and chemical reagents for horticultural care.