Metalized Bag

Metalized Bag refers to a packaging bag with an inner layer laminated with aluminum foil or metallized film (VMPET). It offers high barrier properties, effectively blocking light, moisture, and oxidation. It is commonly used for packaging goods with high moisture and light protection requirements, such as food, electronic components, and chemical products. In foreign trade, customers often request 'metalized bag' as inner packaging, which is then packed into cartons or woven bags. Usage scenarios include: coffee beans, tea, nuts, precision parts, pharmaceuticals, etc. Precautions: specify thickness (e.g., 100 microns), whether the metallized layer is laminated, whether it is food-grade, whether a zipper or exhaust valve is needed; when quoting, confirm printing requirements and minimum order quantity. Compared with ordinary PE bags, metalized bags are more expensive but have better barrier properties; compared with pure aluminum foil bags, metalized bags (VMPET bags) have a thinner aluminum layer, slightly weaker barrier properties but are softer and less costly. Foreign trade contracts should specify the material structure (e.g., PET+VMPET+PE) and specifications to avoid disputes caused by confusion between 'metalized' and 'foil'.