Stretch film is also referred to as stretch wrap. In a layman’s term, this is a stretchable film that is commonly used to wrap different types of items ranging from consumables to electronics. The film employs the principle of elasticity to keep the wrapped items tightly bound. In most cases, a shrink wrap is normally used around the material being wrapped with the aim of allowing the paper to shrink as heat is increased. Other than packaging smaller items, the film can be used to unitize pallet loads. The main aim of the Max film is to protect and at the same time secure and stabilize the cargo during transport. This way, it’s possible to deal with theft and tampering. In most cases, a stretch film should be puncture resistant to ensure the wrapped products are firmly and securely held.
Pallet wrapping process consists of two methods. There is the horizontal development and vertical development. When wrapping products, there is a highly stretchable film whose main purpose is to offer secondary protection. In most cases, the tension around this film is adjusted as wrapping takes place. In the market, there are several types of stretch films with the common ones being static dissipative film, Max film, machine stretch film, extended core film as well as hand and bundling film.
Despite the fact that there are many materials that can be used to produce stretch wrap, the common one is the linear low-density polyethylene. In most cases, this material is as a result of a process called copolymerization of ethylene. The films can also be produced from other products such as octane, hexane, and butane. Stretch wraps are produced using two methods that include the blown process and the casting process. The blown production process is cost effective and produces quality stretch films compared to those produced by the casting process. Notable characteristics that every stretch wrap should have include puncture resistance, clarity, and static discharge as well as tear resistance and break strength.
Usage of Stretch wraps
The stretch wraps can be used for one of the following functions. First, they can be used to protect the material under consideration from sun exposure and in this case, these wraps are referred to as UV stretch wraps. Second, the stretch wraps can be used to protect materials and products from moisture and dust. Third, the wraps can be used to offer tamper resistance as well as package pilferage resistance. Other common functions include offering stability during transport in that they help in the formation of a unit load. Finally, stretch wraps play an important role in improving the handling and storage of goods in a warehouse. Stretch wrappers can be divided into different categories. There is the manual wrappers, semi-automatic wrappers as well as automatic wrappers. For more information, visit Malpack Ltd.