A Guide to Heat Shrink Film

Shrink Film – a material made up of polymer plastic film. When heat is applied, it shrinks tightly over whatever it is covering. There are a number of makes use of for Shrink wrap and shrink film. Some typical applications of shrink wrap are for wrapping meals, gift baskets, boxes, toys, books, soaps, etc. Below is a breakdown of the 2 most commonly used types of shrink.

PVC Shrink Film – A type of shrink wrap used for a variety of applications. The PVC stands for Polyvinyl chloride. Polyvinyl chloride is the third most-produced plastic in the world. PVC shrink wrap was essentially the most commonly used shrink film till replaced several years ago by polyolefin (POF) shrink wrap.

Frequent Makes use of of PVC Shrink Film – PVC shrink wrap uses embrace packaging boxes, CD and DVD packaging, software, small canisters, and other non-edible items.

Drawbacks of PVC Shrink Film – Sealing Strength, storage points, and sealing by-products are common drawbacks of PVC Shrink Wrap. The plasticizer in PVC Shrink wrap hardens in cold conditions and softens under sizzling conditions, due to this fact compromising the strength of the seal and the plastic. 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 – A type of shrink wrap that has grow to be the preferred alternative for packaging products, both edible and non-edible. Polyolefin Shrink wrap is choosered for quite a lot of reasons, together with fewer odors when sealed, stronger seal, and more flexible storage. Polyolefin shrink films do not have any chlorine; therefore, they don’t produce hydrogen chloride gas. Polyolefin shrink wrap does not have any plasticizers, so the temperature isn’t an issue. Polyolefin will be stored in a wide range of temperatures and doesn’t harden and soften in different environments like PVC shrink film.

Widespread Makes use of of Polyolefin Shrink Film – Polyolefin shrink film is used for almost each kind of application. Applications embrace toys, sporting goods, printed wrap, meals, stationery, and cards, just to name a few.

Drawbacks of Polyolefin Shrink Film – Cost and machine compatibility are the two significant drawbacks of Polyolefin shrink film. Polyolefin is commonly more costly than PVC shrink wrap. Many packagers choose PVC because of this reason. There are types of polyolefin shrink wrap which are more appropriate with machines, however Polyolefin machine compatibility has been an issue of packagers.

Cross-Linked Polyolefin Shrink Film – Irradiation is utilized to standard polyolefin shrink film to make the film stronger, and capable of better seal strength. Cross-linked shrink film is sterile, and FDA approved for direct food contact. It affords glorious clarity to display packaged products. To view intimately about making and the history of cross-linked shrink film view, our blog publish titled What’s cross-linked shrink film.

Cross-linked shrink film also leaves less residue on sealers, promoting longer sealing blade or wire life. Cross-linked shrink film is made for use with high-velocity machines and high output operations.

Widespread Makes use of of Cross-Linked Polyolefin Shrink Film – Cross-linked shrink film is used with the same products as commonplace polyolefin shrink film. The cross-linked film is usually utilized in high output operations. It may also be used for heavier products; a traditional polyolefin shrink film can not appropriately package.

Drawbacks of Cross-Linked Polyolefin Shrink Film – Cross-linked shrink film requires higher seal and shrink temps than a normal polyolefin shrink film. Higher temps can damage and deform products sensitive to heat. Higher seal and shrink temps. additionally, require higher energy costs.

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