Shrink film is a common packaging film,Shrink film can be divided into four categories according to different raw materials and processes (PVC shrink film, PE shrink film, POF shrink film and other shrink films).

POF shrink film​, also known as BOPE shrink film (biaxially oriented polyethylene film), is a shrink film made of polyolefin biaxially stretched by double bubble method. Compared with traditional polyethylene blown film shrink film, POF shrink film has excellent mechanical properties, good transparency and uniform longitudinal and transverse shrinkage. Generally speaking, POF shrink film is divided into two categories: ordinary POF and cross-linked POF.

Because of its many advantages, POF shrink film has good development and application in the market. However, the products produced by some manufacturers may have poor shrinkage.So what are the factors

During the shrinkage process of the POF shrink film, the setting of the temperature of the shrink furnace directly affects the shrinkage effect of the POF heat shrinkable film.The temperature of the s

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