packing airtight bags_packing airtight bags

Laminated stand-up pouches are multi-layered bags made from various materials, typically combining plastic films like polyethylene, polyester, and aluminum foil. This layering process enhances the barrier properties of the pouch, ensuring that the contents are well-protected from moisture, oxygen, and light. The “stand-up” feature is achieved through a gusseted base, allowing the pouch to maintain its shape when filled, providing an attractive display option for retail.