Introduction to the production process of POF shrink film

POF shrink film is a kind of easy-to-apply multi-layer thin film, using imported PE and PP as the main raw materials and necessary functional additives such as slip agent, anti-blocking agent, antistatic agent, etc., processed by co-extrusion blow molding process. I believe everyone is familiar with POF shrink film, but POF shrink film manufacturers still want to introduce to you the production process of POF shrink film, let's take a look at it together. POF shrink film is made of linear low-density polyethylene and co-polypropylene as the main raw materials. There will be no peculiar smell during the processing and product application. The product hygiene performance meets the standard and can be used for packaging food. These necessary raw materials are processed by co-extrusion blow molding process with necessary additives. The process is different from the traditional blow molding process. Due to the poor tensile properties of PP melt state, the traditional blow molding process cannot be used. Using the double bubble process, the raw materials are melted and extruded through different extruders, through the designed co-extrusion die, the primary film is formed and then quenched, and the POF shrink film is made by heating and secondary inflation and stretching. . The above is the knowledge about POF shrink film introduced by POF shrink film manufacturers. Thank you for checking our news during your busy schedule. POF shrink film is one of our main products. Thank you for choosing our products. Let us make progress together. OF: an upper Xiaohong: shrink film manufacturer share the advantages of PVC shrink film