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Address: No. 666, North section of Fengxi Avenue, Chengdu, Sichuan, China. Email: olivia@ptindustrial.solutions
Contact name:Olivia
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To the non-discerning, a PVC shrink film and POF shrink film may be the same. However, there are vast differences which have made POF the favoured material over PVC.
PVC stands for Polyvinyl Chloride. PVC shrink film was most commonly used until several years ago when it got replaced by polyolefin (POF) shrink wrap. There are a few reasons for this.
The plasticizer in PVC Shrink becomes brittle in cold conditions and wrinkles under hot conditions, thus compromising the strength of the seal and the plastic.
Polyolefin shrink wrap also does not have any plasticizers, so the temperature is not an issue. Polyolefin can be stored in a wide range of temperatures and does not harden or soften in different environments like PVC shrink film.
PVC shrink wrap also releases small quantities of hydrogen chloride into the air and carbon deposits onto the sealer. Proper ventilation is required when sealing PVC shrink wrap.
Polyolefin shrink film produces fewer odors when sealed because its material does not have any chlorine. Therefore, the film does not produce HydroChloric gas as a by-product.
When PVC is heated, it releases HydroChloric gas. For this reason, PVC poses a danger to the health of factory workers during production and the public during incineration or decomposition.
Many countries have banned the use of PVC. Brands that hold high regard for corporate and social responsibility have also banned PVC in their product packaging. This is an important consideration for brands. Some stores have limited products that use PVC packaging, such as Walmart.
PVC leaves carbon deposits on the sealer. This causes regular maintenance in order for the sealer to operate consistently.
