Barrier films for food packaging are materials designed to protect food products from external factors that could compromise their quality, safety, or shelf life. These films act as a physical barrier that prevents the penetration of moisture, oxygen, light, and contaminants, all of which can degrade food. As consumer demand for fresher, longer-lasting, and more sustainable food packaging grows, barrier films have become a critical component of modern food packaging solutions.Barrier films are typically made from various materials, each with unique properties suited to different food products and packaging requirements. These materials can be classified into two categories: barrier films for food packaging.