Do PE film blowers usually add pigments when making films?

PE film blower thickness is controlled by the host and traction, the host slow traction is fast and thin, on the contrary, the host fast traction is slow and thick. Width is determined by the amount of air in the bubble. If it is not wide enough, it will be inflated, and if it is too wide, it will be deflated. The temperature can be raised, the speed can be turned on quickly, or the high shear screw can be replaced.

Material ratio is not good. The foam you mentioned is often broken, which can be interpreted as poor longitudinal tension. We recommend high pressure: Linear = 2:3 to test, and then do not add too much recycled material. A pack of metallocenes can also be properly added to the inner layer. Fresh-keeping, moisture-proof, frost-proof, oxygen-resistant, oil-resistant, can be widely used in light and heavy packaging.

Such as a variety of fresh fruits, meat, pickles, fresh milk, liquid drinks, medical supplies and so on. The quality of the film blown out by the process depends on the machine and the plastic particles that blow the film. If the film is blown out with the new material, the color is uniform, clean and the finished product is stretched well. If you make plastic particles from recycled waste plastics.

Pigments are often added to thin films, which can be unevenly colored, crisp, breakable and cheap. Most PE is used for blown film processing. Universal Low Density PE (LDPE) or Linear Low Density PE (LLDPE) are available. HDPE film grade is generally used where excellent stretching and impermeability are required.