OPP bags are plastic bags made of polypropylene, specifically biaxially oriented polypropylene (BOPP). They are characterized by their flammability, molten dripping, yellow top and blue bottom, minimal smoke after removal from the flame, and continued combustion.
OPP (Oriented Polypropylene): Oriented polypropylene (film), a type of polypropylene, and also includes biaxially oriented polypropylene (BOPP).
O (Oriented): Primarily refers to the manufacturing process.
PP (Polypropylene): Polypropylene. Used for general structural parts, corrosion-resistant chemical equipment parts, and heat-resistant electrical insulation components.
