Packaging: why choose stretch polyethylene films
Stretch polyethylene, known as LLDPE, is a particular type of material that, due to its physical and chemicalproperties, is incredibly practical and versatile in a great many applications, especially in the field of packaging.
Since its discovery was made known, it has practically monopolised the market , as it is a material that, with incredible simplicity,can turn a wobbly two-metre pallet into a single block that can be transported in complete safety.
Trips by ship or truck are an everyday matter and often cause breakages or collapses of pallets carrying goods, or even damage to the goods themselves.
Using this essential tool you can avoid this problem, allowing anything to travel in complete safety.
Polyethylene film appears as a sheet of glossy paper, usually wound on a cardboard core. The choice of the reel as a support is no accident: it is chosen for the simplicity, ease with which it can be applied.
What qualities make polyethylene films worth choosing?
These formidable films are chosen for packaging for three main reasons:
Ease of use: this film, stored on a reel, has the special feature of being applicable by hand in little time and, where possible, that time can be further reduced with the help of automatic wrapping machines.
Pallet compactness: once anchored to the pallet, the film is passed over the whole surface of the pallet. During this application you can see with the naked eye how the film takes the perfect shape of the pallet and, layer upon layer, turns it into a solid piece even if several metres high.
Short application times and the possibility of reducing them further: the application and management of packaging is usually regulated by the number of pallets to prepare each day. For high shipment volumes, you can opt for a very convenient automatic wrapping machine which, besides needing very little staff, will do the work for you in the way you have set.
This type of packaging film has a great many mechanical properties that set it apart from other materials.
Stretch polyethylene has great tensile strength, which lets it stretch but not break. This feature is much in demand, as it means that even when pulled hard it does not tear and can bear great stress during journeys.
Puncture resistance: contrary to what you might think, polyethylene has great puncture resistance, which is boosted by passing several layers of it over the surface of the pallet. So here is another quality thanks to which our products will be safe.
Think, for example, of stacking boxes with sharp edges on a pallet: various types of plastic would puncture instantly, causing compactness problems on the pallet.
Polyethylene, on the other hand, safely takes the shape of the box edges, compressing them against the rest of the pallet for an operation done to best practice.
How do you apply polyethylene to the pallet correctly?
Once the pallet is built, the moment comes to seal it and send it off, but how do you do it in a correct and safeway?
First, you should know there are two methods for applying the film: the first called semi-automatic or manual and the second called automatic.
In the manual operation, the operator plays a key role, since they are actively involved in the packaging.
For this operation a manual reel is used; the technique consists of tying the film to the base, so as to have a starting point, then you move on to wrapping the whole pallet.
Once packaging is finished, you move on to the cutting of the film , letting the film stick naturally to itself. The limitations of this type of application are usually two: the time taken and the pallet height, which cannot be excessive.
In the automatic and semi-automatic method, dedicated machines are used to carry out the packaging operation, leaving the operator only the task of directing the machine.
In the case of the semi-automatic one, the machine is constantly managed by the worker, who moves it around the pallet, carrying out the operation in a short space of time.
This practice lets you wrap more pallets during a shift and to assign fewer employees to this task.
In the case of the automatic one, however, turntablesare used, on which the pallets are placed. The arm at the side is loaded with the dedicated reel and, with simple management from a display, the packaging operation begins.
Automatic packaging is naturally the best-performing one, since it lets you wrap a large number of pallets, in complete safety and precision.









