Yibangdella develops barrier film co-extrusion equipment

Recently, the Italian company Bundra showed to the public its co-extrusion equipment for the production of high-performance multi-layer barrier films. The processed film has good flexibility.

The co-extrusion equipment consists of 5 extruders, 2 TR75AFS extruders for the outer layer, 2 TR35 extruders for the adhesive layer and 1 TR65AFS extruder for the barrier layer. The TR75AFS screw design is suitable for general purpose resins such as LDPE, LLDPE, HDPE, metallocene polymers and ionic polymers. The thickness of the barrier material (EVOH or nylon) can be controlled to 0.02-0.03mm, and the maximum width of the produced film is 1600mm. The equipment adopts multi-layer mass-feeder and accurately controls the feeding amount of each extruder, and the advanced monitoring system ensures the optimal combination of various raw material feeding amounts, monitors the thickness of each layer of the film, and the extruder is also assembled. Central temperature control system. The company also relied on melt flow analysis and simulation software to calculate the machine, so the material residence time is short, the head pressure is small, the cost is saved, and the film thickness accuracy can reach 0.003mm.