1. Cost POF proportion is 0.92, thickness is 0.012mm, the actual unit cost is lower. PE proportion is 0.92, thickness is 0.03 or more, actual unit cost is higher. PVC proportion is 1.4, thickness is 0.02mm, 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 the existence of LLDPE, the rub resistance is better. PE is thick and tough, and the thickness is uniform. Good moisture resistance, soft texture. 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, uneven thickness, poor moisture resistance, and hard and brittle texture. Strength. Low, low shrinkage, poor rub resistance.
3. Physical properties such as cold resistance. POF has excellent cold resistance. It is not hard or brittle at -50°C and is not easy to break. It can be used for frozen food packaging. After shrink packaging, the packaged material is stored at -50°C-95°C for a long time and remains stable. Yes Static electricity and anti-fog treatment, it is not easy to pollute dust, and can keep the product clean and bright. PE has excellent cold resistance. It will not harden or become brittle in winter or after freezing, so it is not easy to break during transportation. It has static elimination treatment and is not easy to stain dust. Keep the product clean. PVC is extremely cold-resistant, it will become brittle in winter or after freezing, so it is easy to break during transportation. The longer the shrink packaging, the tighter the shrinkage will be, and the packaging will be deformed. No static elimination treatment, easy to contaminate dust, so Product contamination is blurred.
4. 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 automatic packaging in high-speed production lines. The PE processing process does not produce moisture, and Does not stick to the sealing rod, easy maintenance and operation. High toughness, low rubability, can be used for automatic packaging of 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, and the operation is not Convenient and difficult to maintain.
5. Safety After POF shrink packaging, the four corners of the seal are soft, will not cut human hands, and are 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 , Easy to cut and bleed.
Post time: Sep-10-2020