POF Shrink Film is designed with the principle of polymer molecular chain stretching and orientating, and is formed by the method of rapid cooling and shaping. Its physical principle is when the polymer in high elastic state, the tensile orientation, then the following polymer quenched to glass transition temperature, molecular orientation is frozen. When the goods in the packaging process of the heating, the stress relaxation due to thermal motion of molecules, produce shrinkage.
Polyolefin Shrink Film is widely used in daily necessities, food and beverage industry. It is transparent luster and cling to the commodity appearance, energy saving, and has feature of strong resistance, overturning the limitations of traditional packaging films. Polyolefin Film is welcomed by the market and popular with consumers.