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The process of shrink-wrapping is where items are wrapped tightly together in plastic so they cannot move around.
The purpose of this is so the items do not break, aren’t damaged in any way or fall apart.
Common shrink-wrapped items include bags of nuts, packets of crisps, cereal, bottled water and other various products. Most of these products are shrink wrapped to preserve freshness also.
Many people don’t give thought to how shrink wrap works or how it wraps a package in the first place.
Shrink wrap requires the manipulation of molecules; polymers are long molecules found in plastic where they are usually tangled and random. When those polymers are made into plastic film for the purpose of shrink wrapping, the molecules are stretched out so they are almost straight.
Shrink wrap is a fairly adaptable multipurpose packaging material.
It has revolutionised not only the packaging industry but can also be utilised for containment, safety, and security.