What is the reason for the poor permeability of the film blown by the PE film blowing machine

What is the reason for the poor permeability of the film blown by the PE film blowing machine? There are many reasons why the transparency of the film blown by the PE film blowing machine is not strong.

The film blown by the PE film blowing machine is opaque, which may be a problem in the choice of raw materials. Like recycled plastics, there are more impurities when reprocessing, and the transparency will naturally be affected; there may also be problems in the process of impurity coming in during the processing. Check the filter to see if the appropriate filter is selected.

The film blown by the PE film blowing machine is opaque. It may also be due to the low temperature of the extrusion process that the resin material will form crystals, which will affect the transparency of the film. In this case, the extrusion temperature needs to be adjusted. Adjust to increase the extrusion temperature and reduce the formation of crystals.

At the same time, the formation of crystals during the blowing of the PE film blowing machine may also occur during the cooling process, so we need to check these aspects during the inspection process to prevent the quality of the blown film from being affected.