There are many types of packaging films in the market, including POF shrink film, PVC shrink film, heat shrink film, PE heat shrink film, and so on. Heat shrink bags have different functions depending on their materials. Among them, POF shrink film is a transparent and glossy packaging film that closely adheres to the appearance of goods. Its energy-saving and environmentally friendly, high shrinkage rate, transparent luster, strong tear resistance and other characteristics overturn the limitations of traditional packaging films, and are highly welcomed by the market and loved by consumers. Let's talk about the difference between POF shrink film and PVC shrink film:
PVC heat shrinkable film is a synthetic material with heat resistance, toughness, ductility, etc. The upper layer of this surface facial mask is paint, the main component in the middle is polyethylene, and the lower layer is back coated adhesive. It also has unique properties such as rain resistance, fire resistance, anti-static, and easy molding, and is widely used in the building materials and packaging industries.
POF heat shrink film is a new type of heat shrink film material, which is made by using linear low-density polyethylene as the intermediate layer (LLDPE), polypropylene (PP) as the inner and outer layers, plasticizing and extruding through three extruders, and then processing through special processes such as die forming and film bubble blowing. POF is environmentally friendly, high transparency, high shrinkage rate, good heat sealing performance, high glossiness, strength and toughness, tear resistance, and heat shrinkage
