This section provides an overview for shrink packaging & wrapping machinery as well as their applications and principles. Also, please take a look at the list of 6 shrink packaging & wrapping machinery manufacturers and their company rankings.
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Shrink packaging and wrapping machinery is used to hermetically pack a variety of products using a transparent film.
By covering the entire product with shrink wrap, the purpose is to protect the product and prevent foreign matter from mixing with the product.
Shrink wrapping is also advantageous when multiple products are to be consolidated.
Shrink wrapping a bundle of products prevents them from falling apart.
In addition, it is easy to apply stickers and labels on the film.
Shrink packaging and wrapping machinery is used in a variety of manufacturing fields, such as food, cosmetics, and pharmaceuticals, where airtight packaging is required.
Examples include meats, vegetables, bread, books, CDs, and DVDs that require protection during shipment.
Shrink packaging and wrapping machinery are useful when there is a need to enhance the design of a product by attaching labels, or to protect a product from scratches or stains.
The machine can also be used to consolidate multiple products so that, for example, PET bottles can be shrink-wrapped together for shipping.
In shrink packaging and wrapping machinery, packaged goods are heated as they pass through "shrink tunnels."
A shrink tunnel is a heating oven through which the film is heated. There are two types of these: steam and hot air.
First, the steam type has the advantage of high thermal conductivity and good package finish, but water droplets may adhere to the film after shrinking, and there are possible issues that need to be addressed.
On the other hand, the hot air method is becoming capable of blowing hot air from multiple directions, thanks to the improvement of the hot whirlwind method added to the conventional method. Therefore, as with the steam method, the accuracy of shrink finishing is improving.
Even without using the mechanical method described above, heat guns and other devices are also used for small quantities of products or for making minor modifications.
Shrink wrapping uses a film that shrinks when heated (shrink film). The main material used is polyester, which exhibits high heat-shrinkability.
*Including some distributors, etc.
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