Aluminum foil composite film is a multi-layer structure formed by combining base materials (such as OPP, OPA, OPET, aluminum, and paper) with polyethylene (PE) film (single-layer or co-extruded) using an adhesive system. It consists of two or more materials that are combined into one through a single or multiple lamination processes, thus forming a composite material with specific functions.
The term "composite" in the industry actually refers to "laminated," which involves bonding different types of foil composite films together in a specific manner, followed by sealing to protect the contents. The composite films are primarily made of polyethylene (PE), also known as foil composite film.
Common composite processing methods used by ordinary aluminum foil composite film manufacturers include: extrusion lamination; wet lamination; solvent-based dry lamination; and solvent-free dry lamination.
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