1. Mechanical properties
- Good strength and toughness: PET film has the best toughness among all thermoplastics, and its tensile strength and impact strength are much higher than those of ordinary films, which enables it to better withstand external pressure, pulling and other forces during the packaging process, and effectively protect the items in the package from damage.
- Good strength and stable size: This feature allows PET film to maintain a good shape during packaging, which is conducive to the molding and fixation of the packaging, and during storage and transportation, it can maintain the stability of the packaging size and will not easily deform, thereby ensuring the integrity and aesthetics of the packaging.
2. Physical properties
- High transparency and gloss: PET film has high transparency and gloss, which makes the packaging more eye-catching. When packaging food, daily necessities and other products, it can well display the appearance of the product, enhance the attractiveness of the product, and increase consumers' desire to buy.
- Recyclable: PET film is a recyclable material that meets environmental protection requirements. In the current context of increasing environmental awareness, this feature helps to reduce the impact on the environment, is in line with the concept of sustainable development, and has positive significance for the green development of enterprises and society.
III. Chemical properties
- Excellent heat and cold resistance: PET film can maintain good performance in both high and low temperature environments. In high temperature environments, such as in some food or drug packaging that requires heat sealing, it can adapt to the high temperature during the heat sealing process without deformation or damage; in low temperature environments, it will not become brittle or lose its proper performance, thereby effectively protecting the products in the package.
- Good chemical resistance and oil resistance: This allows PET film to be used to package products of various properties, including some products containing chemicals or greases, and can prevent the products in the package from chemically reacting with the film, thereby ensuring the quality and safety of the products.
IV. Processing performance
- Suitable for secondary processing such as printing and paper bags: The surface properties of PET film make it suitable for secondary processing operations such as printing. Various patterns and texts can be printed on the film for the production of bottle stickers, labels and stickers, etc., which can meet the packaging identification and publicity needs of different products.
