In the packaging industry, POF, PVC and PE heat shrink films are common packaging materials, each of them has its characteristics and is suitable for different application scenarios. However, many people are not clear about the difference between them. In this article, we will delve into the differences between POF, PVC and PE heat shrink films to help you better understand these materials and choose the right product for your needs.
Comparison of physical properties advantages and disadvantages of POF and PE, PVC heat shrink film:
| POF heat shrink film | PVC heat shrink film | PE heat shrink film | |
| Cost | the actual unit cost is lower | the actual unit cost is higher | the actual unit cost is higher |
| Physical properties | thick and tough, uniform thickness, good moisture resistance, and soft texture. Tear strength is lower than POF, but much higher than PVC, shrinkage rate adjustability is poor. Kneading resistance is not as good as POF. | thick and tough, uniform thickness, good moisture resistance, and soft texture. Tear strength is lower than POF, but much higher than PVC, and shrinkage rate adjustability is poor. Kneading resistance is not as good as POF. | thin and tough, uniform thickness, good moisture resistance, and soft texture. High tensile strength, tear strength, adjustable shrinkage. Because of the existence of LLDPE, better rub resistance. |
| Cold resistance | cold resistance is excellent | cold resistance is excellent | very poor cold resistance |
| Processing performance | POF processing process does not produce moisture and will not stick to the sealing rod, maintenance and easy to operate. High toughness, smoothness and anti-kneading properties make it suitable for high-speed production line automatic packaging. | PE processing process does not produce moisture and does not stick to the sealing rod, easy maintenance and operation. High toughness, low rubbing, can be used for high-speed production line automatic packaging. | PVC processing will produce volatile points, easy to cause mechanical damage, and easy to stick to the sealing rod, inconvenient operation and maintenance difficulties. |
| Safety | sealing the corners of the soft, will not cut people, but also resistant to kneading. | sealing the corners of the soft, will not cut people. | sealing the corners of the hard and sharp, easy to cut and bleed. |
| Environmental health | in line with the U.S. FDA and USDA standards. | in line with the U.S. FDA and USDA standards. | the processing will produce foul smell, toxic gases, and gradually banned. |
How to differentiate the choice of 3 materials
When choosing POF, PVC and PE heat shrink film, you need to consider according to the specific needs and application scenarios:
- If you focus on transparency and environmental protection, you can choose POF heat shrink film.
- If you need good flexibility and a wide range of packaging materials, you can choose PVC heat shrink film.
- If you need both softness and abrasion resistance, with high environmental protection of packaging materials, you can choose PE heat shrink film.
Conclusion
The choice of which material packaging film to choose, combined with your needs to choose, carefully compare the characteristics and advantages and disadvantages of various materials of heat shrink film.