What Are The Characteristics Of Shrink Film For Product Packaging?

A well-known supplier of plastic shrink wrap is KEEPTOP Packaging & Wrapping. Lighter shrink-wrap materials can be used with consumable foods as a food-safe alternative to heavy-duty shrink-wrap for protecting bulkier objects. While KEEPTOP bags and tubes work best for specific smaller objects, our shrink-wrap rolls are ideal for providing comprehensive coverage over larger things.

Waterproof shrink wrap shields products from the outdoors, while transparent shrink wrap maintains clarity after shrinking for use in retail environments. Heat shrink plastic maintains integrity under high temperatures to provide dependable protection. Check out KEEPTOP’s extensive variety of hand and machine pallet shrink wrap for packaging goods pallets.

KEEPTOP is a leading manufacturing facility and producer of protective merchandise and heat-reduced wrap, with a devoted group available to address your order at any time of day. Polyolefin cut-back film is a superb alternative for packaging a spread of merchandise. Follow this link https://www.keeptoppackaging.com/products/heat-shrink-wrap/ for more information about shrink films. A transparent decrease wrap is used. Polyolefin shrink wrap is well-matched with the sizable majority of automatic and semi-automated shrink wrappers.

Characteristics of Shrink Film for Product Packaging

The qualities that describe some of the uses of shrink film are listed below. When employing it for the packaging of your products, these are crucial to take into account.

Shrink Force

This measurement, which is typically expressed in PSI, indicates the force that the shrink film will exert on your product. Understanding your shrink force is incredibly useful, especially for adjusting your shrink machinery appropriately if you’re packaging a multi-pack that needs to be firmly enclosed without being damaged. If you are packaging wood and the shrink force is high, it won’t matter.

However, this can be important if you are packing a small stack of paper or thin chipboard boxes. Polyolefin films have traditionally had a high shrink force. The shrink force of polyvinyl chloride (PVC) films is minimal. The development of new polyolefin compositions reduces shrinkage.

Shrink Orientation

Either preferentially or biaxially oriented sheets are used for shrinking. Films that are biaxially oriented shrink in either the machine direction or the cross direction equally. A film that is preferentially oriented shrinks in both directions differently. Utilizing less film and reducing product distortion are two advantages of preferentially oriented film.

Shrink Percentage

You can lower the shrink percentage and stick with a bi-axially oriented film, such as 40/40, 30/30, or 20/20, in addition to changing your shrink percentages by employing a preferentially oriented film. Free Shrink is another similar trait. Sadly, this isn’t a trick for getting free shrink wrap, but it’s still quite significant. In challenging shapes and sizes, high degrees of free shrink enables you to produce a better-looking package.

Resistance to Tear

This gauges how difficult it is to tear the film and how difficult it is to puncture the film. Frequently, films with great puncture resistance have less tear resistance, and vice versa. If you must choose between two characteristics, choose the one that is more crucial (puncture resistance, for instance, is crucial if you have a window box).

Select a shrink film that strikes a balance between simplicity of use and product security. To avoid any possible weakening of the film before usage, make sure to maintain your shrink wrap in a cold (but not too chilly) storage place.

Rate of Moisture Vapor Transmission

This characteristic measures the amount of moisture that will or will not pass through the film.

If reducing moisture transfer into or out of your product is essential for extending its shelf life, you should be aware of this feature. You might want to consider modified environment packaging for this and to reduce or get rid of fog.

Antilog and Odor Barrier

Food (fresh and frozen) is covered with anti-fog films to prevent moisture buildup on the film. A fog that results from the moisture may make it difficult to see the product through the film. Odor barrier films are used to stop offensive odors from entering or leaving your cargo. Don’t let a bad smell let you down once your customers have bought your stuff.


When exposed to heat, a particular kind of plastic known as shrink film or shrink wrap “shrinks” or tightens around an object to form a seal. To shrink-wrap an object, you’ll need a heat sealer to close the film’s open ends and a heat source to shrink the film into position. The product or packaging box is wrapped in heat-shrink film. The product or packaging box is tightly wrapped using the film’s superheat shrinking capability after heating.



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