Production Process of POF Shrinkage Film
POF shrink film is a substitute for traditional shrink film, mainly used for packaging products with regular and irregular shapes. It has high toughness，transparency and good gloss, can clearly display the product appearance, improve visual awareness and increase consumer's attractiveness. So，POF film is widely welcomed in marketplace. To help you easy understanding POF film，below is the brief description of fabrication process of POF film.
POF film is made from special linear low density polyethylene and copolymer polypropylene (Co-PP）with some functional additives, and is processed through co-extrusion double bubble film forming process, which is also known as the Prandi process internationally（Prandi invented double bubble process in 1970’s）. It involves melting and extruding raw materials through different extruders, and then pump to a specially designed co-extrusion die to form primary water quenched bubble. The bubble is then go through processes of heating, blow orientation in both MD and TD direction to form the second bubble with specified thickness per customer requirement.
Per above introduction，we know POF shrink film is made by bi-orientation process. Orientation greatly enhance the molecular alignment of polymer in desired direction and thus significantly improve the film toughness and optical properties，it also enables the heat shrinkage property of the film. With all these advanced properties provided though this special fabrication process，POF film is widely accepted in market place.
Jiangsu Libin Advanced Materials Technology Co., Ltd is a full process manufacturing enterprise integrating scientific research, design, production, sales, and after-sales service together. We are committed to be a global renowned producer and a total solution provider of high-quality film. Should you have any requirements around shrinkage packaing，please contact us and we'll serve you with our best with our tailored solutions.
