What material is the food packaging bag？

The main materials of food packaging bags are: 

PVDC (polyvinylidene chloride)

PE (polyethylene)

PA (nylon)

EVOH (ethylene)

aluminized film (aluminum + PE)

 Food packaging bags are a type of packaging design. In order to facilitate the preservation and storage of food in life, food packaging bags are produced. 

Food packaging bags refer to film containers that are in direct contact with food and are used to contain and protect food. 

Food packaging bags should be produced with food-grade plastic films, generally more than two-layer composite material packaging bags.