Customer packaging film for milk powder is designed to meet the unique needs of this product, ensuring that it remains safe and nutritious throughout its shelf life. It is typically composed of multiple layers, each serving a specific function. The primary components include a plastic layer, which provides excellent sealing and moisture-proof capabilities, and an aluminum foil layer that effectively blocks light and oxygen. This multi-layer structure is essential for extending the shelf life of milk powder by preventing moisture absorption and oxidation, which can compromise the product’s quality.