Introduction to the production process of POF shrink film
POF shrink film is a substitute for traditional shrink film. It is mainly used for packaging products with regular and irregular shapes. It has high transparency and good gloss. It can clearly display the appearance of the product, improve the perception and awareness, and reflect the grade. It is widely popular.In order to facilitate everyone's understanding, the production process of its products will be introduced next.
Shrink film is made of linear low-density polyethylene and copolymer polypropylene (TPP, PPC) as the main raw materials, with necessary additives, and processed by co-extrusion blow molding process.It mainly adopts the double-membrane foaming process, which is also known as the Prandi process internationally. It is the melting and extrusion of raw materials through different extruder, through a specially designed co-extrusion die, the initial film is formed and then quenched, and then the product is prepared by heating, secondary blowing, stretching and other processes.
The above is an introduction to the production process of POF shrink film. According to its introduction, the use of the product can be better guaranteed, so that it has the characteristics of energy saving, high shrinkage, transparent luster, and strong tear resistance. Give full play to it, and this product subverts the limitations of traditional packaging films and is welcomed by the market.
Zhejiang Zhongcheng Packaging Materials Co., Ltd. is a full-process manufacturing enterprise integrating scientific research, design, production, sales and after-sales service. It is a world-renowned manufacturer of high-quality shrinkable POF heat shrinkable film and an excellent domestic POF heat shrinkable film overall packaging solution provider.If necessary, please call us.