POF shrink film is designed by the principle of stretching and orienting the polymer molecular chain and is formed by the method of rapid cooling and shaping. The physical principle is: when the polymer is in a highly elastic state, it is stretched and oriented, then the polymer is cooled to below the glass transition temperature, the molecular orientation is frozen, and when the item is heated during the packaging process, the stress is relaxed due to the thermal movement of the molecules, and the original state is restored, resulting in shrinkage.
POF shrink film is a transparent and lustrous packaging film that is tightly adhered to the appearance of goods, its energy-saving and environmental protection, high shrinkage rate, transparent and lustrous, strong tear resistance, and other characteristics to subvert the limitations of traditional packaging film, popular in the market, loved by consumers, POF film is suitable for a variety of packaging fields, including food, daily necessities, cosmetics and other multiple fields of packaging.
POF shrink film is a highly automated equipment, the product is widely used in the daily necessities, food, and beverage and household chemical industries, the application of heat shrink film packaging machine can greatly reduce the use of box packaging materials and labor costs has an important economic significance. The packaging machine is a new type of domestic shrink packaging equipment, it can make the enterprise products better and faster access to the market, for individuals or enterprises to bring high efficiency and high returns.
