Stretch wrap film is different from normal stretch film. It has high requirements on stretching performance and puncture resistance. Therefore, we have to pay attention to the selection. So how to identify the good and bad of stretch wrap film?

 

Stretch film has the characteristics of high transparency, high longitudinal elongation, high transverse tear strength and good puncture performance. It is widely used in the packaging of hardware, chemical, food and other products.

 

Wrapping film is to wrap the goods tightly to facilitate transportation. The deformation stress produced by mechanical stretching device or manual stretching of the film is a very common form of packaging in the world. Stretch wrap film adopts imported resin and advanced film extrusion production technology. It has good stretching performance, tear resistance, strong permeability resistance, high transparency, good self-adhesion, high shrinkage rate, tight packaging and will not be loose can be widely used for single piece or pallet packaging of chemical raw materials, fertilizer, food, electromechanical products, light textile products and other bundling packaging. Stretch stretch film has good sealing, high shrinkage rate at low temperature, high transparency and good gloss, fast shrinkage at low temperature, suitable for small packaging, used in the field of food

 

The good and bad test of stretch film: Stretch film often encounters the problem of poor stretch stretchability in use, which can easily lead to its packaging non-compliance and its main role in winding packaging is greatly reduced. Therefore, consumers should pay attention when purchasing stretch film and have it tested and identified. Stretchability is good or bad by tearing the stretch film first from its length and then from its horizontal direction. Stretched film will produce a strong impact. If the toughness is not good, it will tear easily. If it is too thin, otherwise the toughness will be greatly reduced and the stretchability will be poor.