Technological advancements and process innovations.

Both the reports and industry developments indicate that multilayer coextrusion is the dominant trend, ranging from 5 to 8 layers to 11 layers. An increase in the number of layers means that more functional materials (such as high-barrier and heat-resistant materials) can be incorporated. This is a necessary step in producing high-end packaging films.

Future machines will be even more “intelligent.” For example, based on wind ring thickness measurement technology, the system can automatically detect the thickness of the film and adjust the wind ring gas supply in real time; and the 360° rotating mold head technology can automatically eliminate thickness tolerances and ensure even winding.