Heat shrink film is a type of film made from a polyolefin material that is commonly used to package and protect a variety of products. This film shrinks when heated and wraps tightly around the product, protecting against dust, moisture and shock. The materials of heat shrink film are mainly PVC, PE, POF and PET.
PVC shrink film
PVC heat shrink film is a relatively common heat shrink film, it has good transparency and tensile strength, the price is also relatively cheap. However, PVC material will release harmful gases during processing, causing some pollution to the environment.
PE shrink film
Polyethylene (PE) heat shrink film is the most common type of heat shrink film. It is made from a low-density polyethylene (LDPE) resin that has been cross-linked to improve its shrinkability and tensile strength. PE heat shrink film is relatively inexpensive and is available in a wide variety of colors and thicknesses.
POF shrink film
POF heat shrink film is an environmentally friendly heat shrink film, which consists of multi-layer co-extruded film with the advantages of environmental protection, high transparency and high shrinkage rate. In addition, POF heat shrink film has good tear resistance and heat resistance, which can effectively protect the products.
PET shrink film
PETG heat shrink film is a high-performance heat shrink film, which is characterized by high transparency, high strength and high heat resistance. In addition, PET heat shrink film also has good barrier properties and UV protection, which can effectively protect products from the external environment.
Overall, heat shrink film is an important packaging material that can effectively protect products and improve the added value of products. With the increasing awareness of environmental protection, the application of environmentally friendly heat shrink film such as POF and PET is becoming more and more widespread. In the future, with the continuous progress of technology and the continuous expansion of application areas, heat shrink film will play an important role in more areas.