PVA water-soluble packaging is a water-soluble packaging film that uses polyvinyl alcohol (PVA) as the main component. As a hydrophilic polymer material, PVA can dissolve quickly in water and has high environmental value. The characteristics of PVA water-soluble packaging are environmental protection, biodegradability, non-toxicity and certain mechanical strength. It has a wide range of applications, especially in the packaging of food, cosmetics and daily chemical products, and has huge market potential.