What is the difference between POF and PE, PVC heat shrinkable film, in the packaging industry,Heat shrink filmIt is a very common packaging consumables, food, daily necessities, cosmetics, industrial and other packaging all need heat shrinkable film materials, heat shrinkable film materials include POF, PE, PVC, etc., so do you know what is the difference between POF and PE, PVC heat shrinkable film?Let's focus on the analysis for you!
1.Cost. POF specific gravity 092, the thinnest thickness is 0012mm, the actual unit cost is lower. PE specific gravity 092, the thinnest thickness is 003 or above, the actual unit cost is higher. PVC specific gravity 14. The thickness is the thinnest 002mm, the actual unit cost is higher.
2.Physical properties. POF is thin and tough, uniform thickness, good moisture resistance, and soft texture. High tensile strength, high tear strength, adjustable shrinkage. Due to the presence of LLDPE, the rubbing resistance is better. PE is thick and tough, uniform thickness, good moisture resistance, and soft texture. The tear strength is lower than that of POF, but much higher than that of PVC, and the shrinkage adjustability is poor. The rubbing resistance is not as good as that of POF. PVC is thick and brittle, uneven thickness, poor moisture resistance, hard and brittle texture, low strength, low shrinkage, and poor rubbing resistance.
3.Cold resistance and other physical properties.
POF has excellent cold resistance, -50 is not hard or brittle, not easy to break, and can be used in frozen food packaging. After shrink wrapping, the -50 --95 packaged material is stored for a long time and remains stable. With static electricity and anti-fog treatment, it is not easy to pollute the dust, which can keep the product clean and bright. PE has excellent cold resistance, and it is not hard or brittle in winter or after freezing, so it is not easy to break during transportation. It has static elimination treatment, which is not easy to stain dust and can keep the product clean. PVC is extremely cold tolerant and can become brittle in winter or after freezing, so it is easy to break during transportation. The longer the shrink wrap, the tighter the shrinkage will be, and the wrapped material will be deformed. No static elimination treatment, easy to contaminate dust, so that the product pollution is blurred.
4.Processability.
The POF process does not produce moisture and does not stick to the sealing rod, so it is easy to maintain and operate. High toughness, smoothness and rubbing resistance make it suitable for automatic packaging in high-speed production lines. The PE processing process does not produce moisture, nor does it stick to the sealing rod, so it is easy to maintain and operate. High toughness, low rubbing, can be used for high-speed production line automatic packaging. PVC processing process will produce volatiles, easy to cause mechanical damage, and easy to stick to the sealing rod, inconvenient operation, difficult maintenance.
5.Security.
After POF shrink wrapping, the corners of the seal are soft, which will not cut people's hands and is resistant to rubbing. After PE shrink wrapping, the four corners of the seal are soft and will not cut people's hands, and the four corners of the seal are hard and sharp after PVC shrink wrapping, which is easy to cut and bleed.
6.Environmentally friendly and hygienic.
POF is non-toxic, does not produce toxic odor during processing, and complies with US FDA and USDA standards. PE is non-toxic, does not produce toxic gases during processing, and meets the US FDA and USDA standardsPVC is toxic, processing will produce odors, toxic gases, and gradually banned.
Heat shrink filmThe application range is very wide, different film characteristics and advantages are different, the application effect will be better in the right field, and the selection of heat shrinkable film materials according to the product is the most suitable.