What is the reason for the thin and unbreakable wrapping film?

Wrapping film is currently used in multiple fields. Do you know why it is so thin but how it is not damaged? Below, our editor will introduce the reasons in this regard to you. We believe that after reading it, you will be able to solve your doubts. 
The application field of machine stretch film is very wide, mainly used in conjunction with pallets to package scattered goods as a whole, replacing small containers. Due to its ability to reduce the packaging cost of bulk goods transportation by more than 30%, it is widely used in the integrated packaging of various products such as hardware, minerals, chemicals, pharmaceuticals, food, machinery, etc; In the field of warehouse storage, foreign countries also commonly use stretch film pallet packaging for three-dimensional storage and transportation to save space and land.
texture of material:
PE stretch film was first made of EVA as a self-adhesive material, but its cost was high and it had a taste. Later, PIB VLDPE was developed as a self-adhesive material, and LLDPE is now used as the substrate, including C4 C6 C8 and metallocene PE (MPE). Metallocene polyethylene resin products are a unique single resin that can provide an unprecedented combination of thin film processing and high carbon alpha olefin (HAO) performance advantages. Manufacturers can achieve more stable processing, increase output, reduce film thickness, and simplify the procurement of resin raw materials. MPE resin has a wide processing range on LLDPE and LDPE film processing equipment, and can cope with changes in production conditions. It is a product used for producing high toughness and high transparency films, which can significantly reduce film thickness.
workmanship
Compared to LLDPE/LDPE resin, it still provides better results. As a multifunctional resin, MPE resin can create value in multi-layer blown film production lines, cast film production lines, and single-layer blown film production lines. Contributed to sustainable development. In the early days, LLDPE stretch film was mainly blown film, which developed from single-layer to two-layer and three-layer; Nowadays, LLDPE stretch film is mainly produced by casting method. Due to the narrow molecular weight distribution and processing range of the stretch film, the processing conditions are difficult to control. Usually, 5% LDPE is added to reduce the melt viscosity and increase the flatness of the stretch film. The casting method has the advantages of uniform thickness and high transparency, and can be applied to the requirements of high magnification pre stretching. Due to the inability of single-layer casting to achieve single-sided adhesion, its application field is limited. So the three-layer co extrusion structure is still more ideal. The produced stretch film has uniform thickness, good tensile strength, and is not easily broken.