Introduction to barrier film
Polypropylene films of spunbond polyethylene and polypropylene films generally refer to biaxially oriented polypropylene films. Biaxially oriented polypropylene films (BOPP) are usually multilayer pneumatic films. After polypropylene particles are pneumatically formed into sheets, they pass through two directions. The stretched film has excellent physical stability and mechanical strength because of the stretched molecular direction.
