It is widely used in the packaging of food, candy, cigarettes, tea, juice, milk, textiles, etc., and is known as the "queen of packaging". BOPP film's wide application, low pollution and protection of forest natural resources make it a more popular packaging material than paper and polyvinyl chloride (PVC); The simplicity, reliability and affordability make it a more commonly used packaging material than biaxially oriented polyester (BOPET) and biaxially oriented nylon (BOPA) films. BOPP film can be combined with other materials with special properties to further improve or improve performance, commonly used materials are PE film, saliva polypropylene (CPP) film, polyvinylidene chloride (PVDC), aluminum film, etc.