Comparison of physical properties of POF heat shrinkable film and PE and PVC shrinkable film

1. Cost POF proportion is 0.92, thickness is 0.012mm, the actual unit cost is lower. PE proportion is 0.92, thickness is more than 0.03, actual unit cost is higher. PVC proportion is 1.4, thickness is 0.02mm, the actual unit cost is higher 2. Physical properties POF is thin and tough, uniform thickness, good moisture resistance, soft texture. High tensile strength, high tear resistance, and adjustable shrinkage. Because of the existence of LLDPE, the rub resistance is better. PE is thick and tough, and the thickness is uniform , Good moisture resistance, 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 is thick and brittle, with uneven thickness, poor moisture resistance, and hard and brittle texture. Low strength, low shrinkage, poor rub resistance. 3. Processing performance POF processing process does not produce water or stick to the sealing rod, easy maintenance and operation. High toughness, smoothness and rub resistance make it suitable for high-speed production lines Automatic packaging. The PE processing process does not produce moisture, nor does it stick to the sealing rod, and is easy to maintain and operate. High toughness, low rubability, and can be used for automatic packaging in higher-speed production lines. The PVC processing process will produce volatile matter, which is easy to cause mechanical damage , Easy to stick to the sealing rod, inconvenient operation, difficult maintenance. 4. Cold resistance and other physical properties POF has excellent cold resistance, -50 ℃ is not hard, not brittle, not easy to break, can be used for frozen food packaging. After shrink packaging, -50 ℃-95 ℃ The packaged material is stored 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 beautiful. PE has excellent cold resistance, and will not harden or become brittle after winter or freezing. Therefore, 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 is extremely cold resistant, and it will become brittle in winter or freezing, so it is easy to break during transportation. The longer the shrink packaging, the tighter the shrinkage , The package is deformed. No static elimination treatment, easy to be contaminated with dust, which makes the product contaminated. 5. Safety After POF shrink packaging, the four corners of the seal are soft, will not cut hands, and are resistant to rubbing. After PE shrink packaging, seal The four corners 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. Environmentally friendly and sanitary POF is non-toxic, does not produce toxic odors during processing, 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. Heat shrinkable film manufacturers｜Automatic packaging machine film heat shrinkable film is light in weight, Low density, the development trend of POF environmentally friendly heat shrinkable film!