Pallet wrapping films (both blown and cast) are used to contain and protect products on a pallet during transit and storage. While both perform the same function, there are multiple strengths, colours and lengths to suit different applications. Stretch Wrap is manufactured via two different methods using different resin technology, giving the film different properties and performance levels. They are commonly referred to as blown and cast.
What is blown stretch wrap?ย
Blown pallet wrapping films are manufactured by forcing molten resin through a circular die, creating a bubble tube that is blown more than 10 metres high. The bubble is then flattened and produced into rolls of film. The molecular structure of blown film is two-way (or criss-crossed) so that when tensioned, it locks in firmly. It has a much lower stretch yield compared to cast films. Blown pallet wrapย is known to be tough, and tacky and has a hazy or cloudy-looking surface. The double-sided tack makes it a noisy product to use compared to cast films.
Omni produces blown films inย handย andย machineย rolls for both pallet wrapping methods.ย
What is cast stretch wrap?
Our cast pallet wrapping is created by molten resin fed through a large extruder that then creates layers of film to the desired thickness (microns), then cooled creating multiple layers of thin film. This multi-layered film is then rolled onto cores. The molecular structure of cast film is one-directional, running down the length of the film. When stretched through a pre-stretchย pallet wrapper, it has a very high stretch yield of up to 350%. The cast-type stretch film has high clarity and is quiet in its application.
Omni produces cast films inย handย andย machineย rolls to suit both pallet wrapping applications. This range includes;
- Masterwrapย
- Elite Wrapย
- Conventional Wrapย
- Coloured Stretch Wrap range includes;ย Black,ย white,ย red,ย orange,ย green,ย blue,ย yellowย
What is a โpre-stretchedโ pallet wrapping film?
Pre-stretched film is used to reduce the need to pull extra tension whilst applying the film to a pallet. For this reason, the hand rolls are recognized and supported as a desired film for OH&S purposes. Used correctly, pre-stretch hand film will reduce back strain when hand-wrapping pallets. Specifically suited for packaging lighter weight products that tend to move around on the pallet whilst the wrap is being stretched for containment.
Theย Elite Wrap 'Rolled Edge'ย range are pre-stretched films. This pallet wrap is made inย handย andย machineย rolls for both wrapping methods.ย
