Cross Link Shrink Film (also known as Cross Linked Shrink Film) is a type of plastic film that is commonly used for packaging applications. This film is made of a special type of polymer that has been chemically cross-linked, which means that the polymer chains have been bonded together in a three-dimensional network. This process makes the film stronger and more resistant to tearing, puncturing, and stretching.

Cross Link Shrink Film is typically used for packaging products such as food, beverages, pharmaceuticals, electronics, and other consumer goods. The film is designed to shrink tightly around the product when it is heated, creating a secure and protective seal. This can help to prevent contamination, damage, and tampering during shipping and storage.

In addition to its strength and shrink properties, Cross Link Shrink Film also has excellent clarity, allowing the product inside to be easily visible. It is also available in various thicknesses and widths to suit different packaging needs.

Cross Linked Shrink Film is available in different widths to suit various packaging needs. The widths you mentioned (20, 25, 30, 35, 40, 45, 50, 55, and 60) likely refer to the options available for this type of film.

Depending on the specific application, a particular width may be preferred or required. For example, smaller widths like 20 or 25 may be used for packaging small items, while larger widths like 50 or 60 may be used for larger items or bundles of products.

It is important to choose the appropriate width of Cross Linked Shrink Film to ensure proper coverage and protection of the product being packaged. The thickness of the film is another important consideration, as it can impact the film's strength and durability.