PET films, also known as high-temperature resistant polyester films, possess excellent physical and chemical properties, dimensional stability, transparency, and recyclability. They find extensive applications in various fields such as magnetic recording, photosensitive materials, electronics, electrical insulation, industrial films, packaging decoration, screen protection, and optical-grade mirror surface protection.
PET films are comprehensive packaging materials with good transparency, glossiness, airtightness, and aroma retention. They exhibit moderate moisture resistance and reduced moisture permeability at low temperatures. PET films boast excellent mechanical properties, ranking among the best in all thermoplastic plastics. Their tensile strength and impact resistance are significantly higher than those of ordinary films. Additionally, they offer good stiffness, dimensional stability, and are suitable for secondary processing like printing and making paper bags. PET films also demonstrate excellent heat resistance, cold resistance, chemical resistance, and oil resistance. However, they are not resistant to strong alkalis and are prone to static electricity buildup, requiring caution when packaging powdered items.
Classification of PET Films:
High Gloss PET Film
This type of film possesses excellent physical and mechanical properties like ordinary polyester films, with the added benefit of outstanding glossiness.
PET Mirror Film
PET mirror films exhibit excellent optical properties, including good transparency, low haze, and high glossiness. They are primarily used for high-end vacuum aluminum plating products, providing excellent packaging decoration effects. These films are also used for laser holographic anti-counterfeit base films. The high-gloss BOPET film market has a large capacity, high added value, and significant economic benefits.
PET Transfer Film
Also known as thermal transfer films, these films boast high tensile strength, good thermal stability, low heat shrinkage, smooth and clean surfaces, good peelability, and can be reused multiple times. They are mainly used as carriers for vacuum aluminum plating. PET transfer films are applied in various fields like packaging and protection, where they provide convenience and efficiency.
PET Reflective Film
PET reflective films feature excellent optical properties, with smooth, clean surfaces, good thermal stability, low shrinkage, and resistance to light aging. They are commonly used in advertisements, traffic reflective signs, reflective uniforms, and industrial safety signs.
PET Chemical Coating Film
Chemical coating methods are employed to improve the surface properties of PET films, enhancing print adaptability and the bonding strength of vacuum aluminum layers. These films find applications in various printing and aluminum plating industries.
PET Anti-static Film
Anti-static PET films are crucial in today's information age to mitigate the effects of electromagnetic interference and static electricity buildup. They feature an extremely thin conductive layer on the film surface, allowing charges to dissipate quickly. These films are applied in packaging sensitive electronic components, instruments, and certain chemical products.
PET Heat Seal Film
PET heat seal films address the heat sealing issue of ordinary PET films in commodity packaging. They feature a heat-sealable layer that allows for direct heat sealing, providing convenience and efficiency in various packaging applications.
PET Heat Shrink Film
Polyester heat shrink films are emerging as environmentally friendly alternatives to PVC heat shrink films due to their ease of recycling, non-toxicity, odorlessness, and good mechanical properties. These films find applications in various industries, particularly in the packaging sector.
PET films offer versatile solutions for a wide range of applications, catering to the diverse needs of different industries while also considering environmental sustainability.