Case for warehousing packing

The composition of the stretch film is different from food-grade cling film. The stretch film on the market is generally processed from raw materials such as LLDPE and metallocene compounds. The quality of the stretch film depends on the amount of metallocene compound added and the processing performance of the metallocene compound. Good, high strength, good rigidity and transparency, and good performance in terms of temperature resistance and chemical resistance. The addition of metallocene compounds to a certain level can greatly improve the performance of the stretch film, and this will also bring The increase in costs.

Let’s look at the production process of stretch film. The current stretch film generally adopts multi-layer co-extrusion technology. By adjusting the ratio of various compounds and adding some special substances, it can achieve single-sided or double-sided stickiness, colorless, odorless, shrinking, etc. characteristic.

Another way to make the film sticky is to add glue particles evenly on the film during the production of the stretch film. However, the disadvantage of this method is that the film is stretched 2 times or 3 times, and the glue particles are less sticky. It will be greatly reduced. After the winding is completed, it is easy to cause the tail film to fall off, and the thickness of this film is generally relatively large, and it does not feel smooth to the touch and has a clear grainy feel.

Everyone must pay attention when choosing a machine-use stretch film. It is not that the thicker the film, the better the stretchability and penetration resistance of the film. The thicker the film, the shorter the length per kilogram. Both thin film and thick film have different applicability. For carton-packed goods, thin stretch film can play a good wrapping. For irregular palletizing, heavier and loose goods, It is better to choose a thicker stretch film.