What raw materials are used for POF shrink bags?

POF shrink bags are currently mainly used for the outer packaging of other daily necessities such as beverages, convenience foods, daily chemicals, audio-visual products, books and periodicals, medicines, electronic components, etc., and are particularly suitable for the packaging and shelf storage of supermarket goods. Then some people may ask, what raw materials are used for POF shrink bags? Today I will give you a brief introduction.

1. POF means heat shrink film. The full name of POF is multi-layer co-extruded polyolefin heat shrink film. It uses linear low-density polyethylene as the middle layer (LLDPE) and co-polypropylene (pp) as the inner and outer layers. It is plasticized and extruded by five extruders, and then processed by special processes such as die head molding and film bubble blowing.

2. The main raw materials of POF shrink bags include LLDPE (linear low-density polyethylene), TPP (terpolymer polypropylene), PPC (binary copolymer polypropylene) and necessary functional additives such as lubricants, anti-adhesive agents, antistatic agents, etc. These raw materials are all environmentally friendly materials. No toxic gases or odors will be generated during the processing and product application process. The product hygiene performance meets the US FDA and USDA standards and can be used to package food.

3. POF shrink bags have high transparency and good glossiness, which can clearly display the appearance of the product, improve sensory awareness, and reflect the times. The shrinkage rate is large, up to 75%, and the flexibility is good. It can package any shape of goods, and the shrinkage force of the three-layer co-extruded film treated by special technology is controllable, which meets the shrinkage requirements of different product packaging.

POF shrink bags and POF packaging films are widely used, have a broad market, and have the advantages of environmental protection. Therefore, they are widely valued by developed countries in the world and have basically replaced PVC heat shrink packaging film to become the mainstream product in heat shrink packaging materials.