Water-soluble film, also known as PVA (Polyvinyl Alcohol) film, is a type of thin film material that dissolves completely in water. It exhibits good mechanical properties and transparency at room temperature but quickly dissolves upon contact with water, leaving no residue, thus making it environmentally friendly. The main component of water-soluble film is polyvinyl alcohol, which is non-toxic and harmless, making it suitable for a wide range of applications including food packaging, laundry detergent pod packaging, and more.

Water-soluble film plays a significant role in the packaging industry, particularly in the packaging of laundry detergent pods. Traditional plastic bag packaging may generate waste during use, leading to environmental pollution. In contrast, water-soluble film packaging dissolves completely in water, thus avoiding environmental issues and meeting modern society's environmental protection requirements.

With its unique properties and environmentally friendly characteristics, water-soluble film offers an innovative solution for sustainable packaging needs across various industries.