The production process of PVA water-soluble packaging is relatively simple, mainly including the preparation of
PVA film and the subsequent packaging molding process. During the production process, PVA is made into a film by solution casting or film blowing, and then cut and formed into packaging bags or films of various specifications according to demand. Since PVA material has high water solubility, special attention should be paid to temperature and humidity control during the production process to ensure the stability of the film quality.