What Properties Are Required For Stretch Winding Film

Different varieties of plastic packaging film, its performance is also different, the following will be by the stretch winding film manufacturer to introduce the required performance for us.
One is the protection function. As a packaging material, the protection function of plastic film is very important and basic. The second is the mechanical protection function, which can prevent the leakage of goods in the package or the damage and pollution of goods caused by external substances entering the package. Third, good welding strength, which is also a necessary condition for plastic film bags to reliably protect goods. Four is the barrier performance, that is, the plastic film to prevent oxygen, carbon dioxide, nitrogen and other gases as well as aroma, water vapor and other substances through the performance.
In addition, there are also light transmittance and fog, gloss, antistatic, good smoothness, high temperature resistance and so on performance requirements.