What is each of the six layers made from?
A. This revolutionary package is a laminate of three materials: high-quality paperboard, polyethylene and aluminum. Each material plays a critical role in achieving the unique benefits of the aseptic package. Paper (70%) provides stiffness, strength and the efficient brick shape to the package. Polyethylene (24%) on the innermost layer forms the seals that make the package liquid-tight. A protective coating on the exterior keeps the package dry. Aluminum (6%) is the silver material you see on the inside of the aseptic package. This ultra-thin layer of foil forms a barrier against light and oxygen, eliminating the need for refrigeration and preventing spoilage without using preservatives. The aseptic package contains a total of six layers in this order: polyethylene, paper, polyethylene, aluminum foil, polyethylene and polyethylene.
