Fifty micro-layers

From January 17 to 21 Colines will open the doors of its factory in Novara (Italy) to show a JumboRollex plant in operation for the production of stretch film. The 2,000-mm wide line can attain a 1,800-kg output and a speed of 1,000 m/min. Furthermore, it is equipped with an EDI coextrusion system to produce films made of up to 50 micro-layers.
In practice, three or more extruders feed the melt into a feedblock which produces a multi-layer "sandwich" structure. This in turn is fed into a layer multiplier where, for example, 3 layers are multiplied into 12 and then into 48 layers.