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Polyester film is a high‑performance polymer film that has increasingly won favor among consumers thanks to its excellent overall properties. However, due to domestic production capacity and technological levels still falling short of market demand, imports remain necessary for certain applications.

Polyester film is a high‑performance polymer film that has increasingly won favor among consumers thanks to its excellent overall properties. However, due to domestic production capacity and technological levels still falling short of market demand, imports remain necessary for certain applications.

PET release film is a commonly used material in thermal transfer applications. Its base substrate is PET, which is coated with silicone oil, hence the name “silicone‑oil film.” Standard thicknesses range from 25 µm to 150 µm. It is available in both cold‑peel and hot‑peel versions, with either a glossy or matte finish. After undergoing anti‑static and scratch‑resistant treatments, the product exhibits excellent adhesion and conformability.

PET release film is a commonly used material in thermal transfer applications. Its base substrate is PET, which is coated with silicone oil, hence the name “silicone‑oil film.” Standard thicknesses range from 25 µm to 150 µm. It is available in both cold‑peel and hot‑peel versions, with either a glossy or matte finish. After undergoing anti‑static and scratch‑resistant treatments, the product exhibits excellent adhesion and conformability.

Release film refers to a thin film whose surface exhibits distinct release properties; when brought into contact with a specific material under limited conditions, it either remains non‑adhesive or exhibits only slight adhesion.

Release film refers to a thin film whose surface exhibits distinct release properties; when brought into contact with a specific material under limited conditions, it either remains non‑adhesive or exhibits only slight adhesion.

Heat-shrink film is used for the sale and transportation of various products, with its primary functions being to secure, conceal, and protect the goods. The shrink film must exhibit high puncture resistance, excellent shrinkage properties, and a suitable level of shrink stress. During the shrinking process, the film must not develop any pinholes. As shrink film is often employed outdoors, it is necessary to incorporate UV‑stabilizing agents.

Heat-shrink film is used for the sale and transportation of various products, with its primary functions being to secure, conceal, and protect the goods. The shrink film must exhibit high puncture resistance, excellent shrinkage properties, and a suitable level of shrink stress. During the shrinking process, the film must not develop any pinholes. As shrink film is often employed outdoors, it is necessary to incorporate UV‑stabilizing agents.

Conventional PET is a crystalline polymer. After biaxial stretching and orientation, PET film exhibits a significant degree of crystallinity; if subjected to heat sealing, it will undergo shrinkage and deformation. Therefore, standard PET film does not possess heat-sealability.

Conventional PET is a crystalline polymer. After biaxial stretching and orientation, PET film exhibits a significant degree of crystallinity; if subjected to heat sealing, it will undergo shrinkage and deformation. Therefore, standard PET film does not possess heat-sealability.