Comparison of the performance of POF shrink film and PE and PVC shrink film

The environmentally friendly multi-layer co-extruded polyolefin (POF) heat shrinkable film is made of linear low density polyethylene (LLDPE) as the middle layer and co-polypropylene (PP) as the inner and outer layers in a special equipment. The middle and outer layers are co-extruded to produce a heat shrinkable film with high transparency, high shrinkage and good heat sealing performance. It has all the advantages and advantages of polyethylene (PE) and polypropylene (PP) at the same time, and its excellent performance is far better than simple polyethylene (PE) film and polypropylene (PP) film. It is currently international Widely promoted and used environmentally friendly heat shrinkable packaging materials approved by the European and American markets. It complies with US FDA and USDA standards, and is made of environmentally friendly materials. It is an environmentally friendly packaging material that can be recycled and reused. Especially suitable for the pharmaceutical industry and the food industry. The product complies with GMP[Note] requirements. Comparison of the physical properties of POF heat shrinkable film and PE and PVC shrink film 1. Cost POF specific gravity is 0.92, the thinnest thickness is 0.012mm, and the actual unit cost is lower. The PE specific gravity is 0.92, and the thickness is the thinnest 0.03 or more, and the actual unit cost is higher. The specific gravity of PVC is 1.4, the thinnest thickness is 0.02mm, and the actual unit cost is higher. 2. The physical properties of POF are thin and tough, uniform thickness, good moisture resistance, and soft texture. High tensile strength, high tear resistance, and adjustable shrinkage. Because of LLDPE Existing, better rub resistance. PE is thick and tough, uniform thickness, good moisture resistance, and soft texture. The tear resistance is lower than POF, but much higher than PVC, and the shrinkage rate is poor. The rub resistance is not as good as POF. PVC Thick and brittle, uneven thickness, poor moisture resistance, hard and brittle texture. Low strength, low shrinkage, poor rub resistance. 3. Physical properties such as cold resistance POF has excellent cold resistance, not hard or brittle at -50°C, not easy to crack, and can be used Frozen food packaging. After shrink packaging, the packaged material will be stored at -50℃-95℃ for a long time, stable and unchanging. It has static electricity and anti-fog treatment, which is not easy to pollute dust and can keep the product clean and bright. PE has excellent cold resistance, winter or winter After freezing, it is not hard and brittle, so it is not easy to break during transportation. It has static elimination treatment, which is not easy to stain and can keep the product clean. PVC has extremely poor cold resistance and embrittlement in winter or after freezing, so it is easy to break during transportation The longer the shrink packaging is, the tighter the shrinkage will be, and the packaging will be deformed. No static elimination treatment, easy to be contaminated with dust, and blurred product pollution. 4. Processing performance POF processing process does not produce moisture or stick to the sealing rod, maintenance And easy to work. High toughness, smoothness and rubbing resistance make it suitable for automatic packaging on high-speed production lines. The PE processing process does not produce water and does not stick to the sealing rod, and the maintenance and operation are easy. High toughness, low rubbing, and usable Automatic packaging on higher-speed production lines. The PVC processing process will produce volatile matter, which is easy to cause mechanical damage, and it is easy to stick to the sealing rod, which is inconvenient to work and difficult to maintain. 5. Safety After POF shrink packaging, the four corners of the sealing are soft and not It can cut human hands and is also resistant to rubbing. After PE shrink packaging, the four corners of the seal are soft and will not cut human hands. After PVC shrink packaging, the four corners of the seal are hard and sharp, which is easy to cut and bleed. 6. Environmental protection and sanitation POF is non-toxic and processing It does not produce toxic odor from time to time, and meets US FDA and USDA standards. PE is non-toxic, does not produce toxic gas during processing, and meets the US FDA and USDA standards. PVC is toxic, processing will produce odor and toxic gas, and it is gradually banned. Processing and application of heat shrinkable film, heat shrinkable film manufacturer: packaging misunderstanding