Polyester (PET) film is made primarily from PET chips and processed through drying, melting, extrusion, casting, and stretching. This Polyethylene Terephthalate film has good transparency, glossiness, air tightness, moisture resistance, and excellent mechanical properties. Polyester film is widely used in industries such as LCD displays, medical packaging, electrical products, and new energy.
Based on different film thicknesses, polyester film can be classified into ultra-thin film, thin film, medium film, and thick film. Thin and medium films are commonly referred to as general-purpose films, with thicknesses typically ranging from 6 to 65 micrometers, and they are mainly used in packaging and other fields. On the other hand, ultra-thin film and thick film are used as specialty films, primarily in different industrial sectors.
Furthermore, depending on the stretching process, the polyester film can be divided into uniaxially stretched PET film (CPET) and biaxially stretched PET film (BOPET). CPET is a film made of semi-dull PET chips through drying, melting, extrusion, casting, and longitudinal stretching, and its grade and price are lower. BOPET, on the other hand, is a medium to high-grade film produced by drying, melting, extrusion, casting, and biaxial stretching of bright-grade PET chips. BOPET contains titanium dioxide and has a wide range of applications.
The special functional PET film will become a key development direction in the future. Hubei Decon focuses on supplying raw materials for specialty PET film. For more information, you can refer to https://www.polyestermfg.com/film-grade-pet-chip/.
With the advancement of science and technology, ordinary PET film is no longer able to meet the requirements. Therefore, through continuous research and development of polyester film design and production processes, necessary modifications are being made to enhance its performance and quality, further expanding the application of polyethylene terephthalate film.
Currently, the polyester film industry in our country is mainly focused on ordinary polyester film, resulting in a structural contradiction of “excessive low-end products and insufficient high-end products” due to the low entry barriers. With the support of national policies, particular functional polyester films will have rapid development opportunities.
Furthermore, as the performance of polyester film continues to improve and its application areas expand, companies will shift from providing single or limited products to offering comprehensive solutions. This means that companies will combine multiple products to create comprehensive solutions for end users, catering to different needs.