Customized Composite Bags Producer 2kg 5kg 10kg Composite Material Pouches

Composite packaging bags are packaging materials with multiple functions, made by combining two or more materials through composite processes. The following is a relevant introduction:

Structure and Materials

- Outer layer: Materials such as polyester (PET) and nylon (PA) are often used, providing good printability, wear resistance and mechanical strength.

- Middle layer: Mostly aluminum film, polyethylene (PE),  EVOH (ethylene-vinyl alcohol co polymer), etc., which play the role of barrier (moisture-proof, oxygen-proof, etc.), aroma preservation and strength enhancement.

- Inner layer: Generally made of polyethylene (PE),  which have good heat-sealing performance to ensure the sealing of the bag mouth.

- Small packaging bags: They hold a small weight, usually made of single-layer or double-layer materials. For some with special requirements, they can also be made of multiple layers of different composite materials. They have a wide range of packaging applications, including liquids, powders, blocks and special-shaped objects.