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A Guide to Heat Shrink Film

Shrink Film – a cloth made up of polymer plastic film. When heat is applied, it shrinks tightly over no matter it is covering. There are a number of uses for Shrink wrap and shrink film. Some typical applications of shrink wrap are for wrapping food, present 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 quite a lot of applications. The PVC stands for Polyvinyl chloride. Polyvinyl chloride is the third most-produced plastic within the world. PVC shrink wrap was probably the most commonly used shrink film until replaced several years ago by polyolefin (POF) shrink wrap.

Common Uses of PVC Shrink Film – PVC shrink wrap uses include packaging boxes, CD and DVD packaging, software, small canisters, and different non-edible items.

Drawbacks of PVC Shrink Film – Sealing Power, storage points, and sealing by-products are widespread drawbacks of PVC Shrink Wrap. The plasticizer in PVC Shrink wrap hardens in cold conditions and softens under hot conditions, due to this fact compromising the energy of the seal and the plastic. PVC shrink wrap additionally 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 wantred selection for packaging products, both edible and non-edible. Polyolefin Shrink wrap is desirered for quite a lot of reasons, including fewer odors when sealed, stronger seal, and more flexible storage. Polyolefin shrink films do not need any chlorine; subsequently, they do not produce hydrogen chloride gas. Polyolefin shrink wrap doesn’t have any plasticizers, so the temperature just isn’t an issue. Polyolefin could be stored in a wide range of temperatures and does not harden and soften in several environments like PVC shrink film.

Common Uses of Polyolefin Shrink Film – Polyolefin shrink film is used for nearly every kind of application. Applications embody toys, sporting items, printed wrap, meals, stationery, and cards, just to name a few.

Drawbacks of Polyolefin Shrink Film – Value and machine compatibility are the two significant drawbacks of Polyolefin shrink film. Polyolefin is commonly more expensive than PVC shrink wrap. Many packagers desire PVC because of this reason. There are types of polyolefin shrink wrap that are more compatible with machines, however Polyolefin machine compatibility has been a difficulty of packagers.

Cross-Linked Polyolefin Shrink Film – Irradiation is applied to straightforward polyolefin shrink film to make the film stronger, and capable of higher seal strength. Cross-linked shrink film is sterile, and FDA approved for direct food contact. It gives excellent clarity to display packaged products. To view in detail about making and the history of cross-linked shrink film view, our blog put up 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 to be used with high-pace machines and high output operations.

Frequent Uses of Cross-Linked Polyolefin Shrink Film – Cross-linked shrink film is used with the identical products as normal polyolefin shrink film. The cross-linked film is commonly used in high output operations. It can be used for heavier products; a traditional polyolefin shrink film cannot appropriately package.

Drawbacks of Cross-Linked Polyolefin Shrink Film – Cross-linked shrink film requires higher seal and shrink temps than a regular 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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