Should we use stretch film and shrink wrap in order to protect the product during the entire storage and transportation of the goods. Although both types of packaging have some differences, they are often confused.
Today we are here to explain the similarities and differences between stretch film and shrink wrap, and how to choose them.
Stretch wrapping film is a packaging method that wraps the goods tightly for transportation and storage under normal temperature, using a mechanical stretching device or the deformation stress generated by forcibly stretching the film by hand. Adopt imported resin and advanced flow film extrusion production process. It has the characteristics of good tensile properties, tear resistance, strong penetration resistance, high transparency, good self-adhesion, high retraction rate, tight packaging and no looseness. It can be widely used in single-piece or pallet packaging and other bundled packaging of chemical raw materials, fertilizers, food, mechanical and electrical products, and light textile products.
Packaging products with stretch film can effectively reduce the cost of use. The use of stretch film is only about 15% of the original box packaging, about 35% of the heat shrinkable film, and about 50% of the carton packaging. At the same time, it can reduce the labor intensity of workers, improve the packaging efficiency and packaging grade.
The wrapping film forms a very light and protective appearance around the product, so as to achieve the purpose of dustproof, oil-proof, moisture-proof, waterproof and anti-theft. The most important thing is that the wrapping film packaging makes the packaged items evenly stressed and avoids damage to the items caused by uneven stress, which is unmatched by traditional packaging methods (bundling tapes, packing tapes, tapes, etc.).
The wrapping film has super tightness and shrinkage, and can bundle the product into a unit compactly and fixedly, so that the scattered small parts become a whole, even in an unfavorable environment, the product will not have any looseness and separation, and there is no sharp edges and stickiness to avoid damage.
With the help of the retraction force of the stretched film, the product is wrapped and packaged to form a compact unit that does not take up space as a whole, so that the trays of the product are tightly wrapped together, so that the hard products can be close to each other, and the soft products can be Austerity, especially in the paper and textile industries, has a unique packaging effect.
Shrink wrap is another transparent plastic film. However, shrink wrap does not have the same sticky type of saran wrap or elastic properties. In most cases, shrink wrap can be used to package a single product, but it can also be used to package multiple products together.
Unlike stretch film that is wrapped around a product tray or product several times, shrink wrap is actually cut around the product using a shrink wrap stick or heat sealer. Once heated, the shrink film compresses around the product to form a seal. Finally, shrink wrap provides a protective, tamper-resistant barrier with the appeal and appearance of professionally packaged products.
Now let’s discuss the difference between stretch wrap vs shrink wrap.
The first difference between stretch wrap vs shrink wrap is the material made of plastic. Stretch wrap is usually made of polyethylene resin, but shrink wrap is made of polyolefin film.
The second difference between stretch wrap vs shrink wrap is in application. Stretch film is a stretchable plastic that is tightly wrapped around a stack of products or used in pallet packaging. The elasticity of the stretch wrap is what keeps the load together. In contrast, shrink wrap is applied loosely to the product and shrinks when heat is required to securely cover the product.
Stretch wrap is commonly used in various warehouses and distribution centers to wrap pallets of products for storage and/or shipping. Stretch Film provides a variety of professional customized films, such as hand stretch film, machine stretch film, pre-stretch film and more.
In contrast, shrink wrap is often used to protect individual products from weathering or dust. Shrink wrap can also be used to hold smaller products tightly together. Although shrink wrap can be used to combine products on pallets, it is unlikely. Shrink wrap is more commonly used to protect items such as boats, outdoor furniture, and food items (vacuum sealing).
DENUNA has been the leading name in providing high-quality stretch wraps and films. In addition to offering a vast range of stretch film products, we offer the expertise to guide you to the best solution.
Contact us today to learn more about the several stretch wrap applications.