This type of solution works by subjecting packaging materials, in this case retractable polyethylene, to heat, with the aim that it contracts and adapts to the product. In this way, it provides greater support and offers greater protection to the products, against dust, water and other factors that can damage them.
In addition, thanks to the adjustment offered by this type of machine, a better aesthetic finish of the packaging is achieved, and it is even possible to visualize the product inside. For this reason, heat packaging is the most recommended for the end customer.
It is also because of the type of adjustment offered by the film when it comes into contact with heat, that these machines are the most recommended for those cases in which pieces with irregular shapes are packed.