Heat Shrink Films
The most widespread shrink wrap film is low density
polyethylene, more commonly referred to as polythene or PE. The principal use to which PE is put is as a
transit medium. It allows packs to be wrapped individually or collated and
offers the best combination of protection and unit cost when compared with the
alternatives.
PE shrink wrap packaging film is used on a vast range of
products, from radiators and work surfaces to collation of cans and jars and
the individual shrink packaging of cartons and products themselves, such as
pizza.
Shrink wrap plastic applications do have overlap between
transit and display shrink film where there is a requirement for the enhanced
presentation offered by display, and equally, where the advantages of display
are not required.
The shrink wrap plastic ranges do not overlap totally as a
fundamental transit requirement in the normal way can be satisfied only by PE
shrink wrap film.
Polyolefin shrink wrap plastics have multiple layers of PE
and polypropylene (PP) and may be irradiated for extra strength, and treated
for hot slip or anti-fog properties. Polyolefin shrink wrap packaging are
formulated to offer a wide sealing and shrinking window so that they can be
readily used on manual, semi and fully automatic shrink wrapping machinery.
Polyolefin shrink plastic is extremely versatile so they are
the first choice when using display shrink films; PO shrink plastic will
generally offer an excellent solution to a shrink film requirement.
PVC shrink wrap plastic shrink films have been largely replaced
by Polyolefin (PO) shrink films.
PVC shrink films have particularly easy
sealing and shrinking features but they are inferior to PO shrink films in the
areas of strength, low temperature flexibility and equipment maintenance
requirement. PVC shrink wrap plastic continues to be used on very flexible
packs, particularly heat sensitive products and, generally, on older equipment.
PVC shrink wrap film is also used with less plasticizer in
the form of semi-rigid shrink film where it can be used to substitute BOPP
overwrap film, but with the additional benefit of a shrink wrap finish.
Contact us for information on how to buy shrink wrap or for
help and advice when choosing plastic shrink wrap or shrink wrapping machines.
PH: 813 242 6995
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