How is PET recycling?

Extrusion/recycling of PET foil without dehumidification and crystallization

The use of packaging is exponentially grown in the ‘90 and this has generated enormous problems with waste disposal. This, in addition to a new global ecological awareness, led to research aimed at the valorization of plastics wastes.
The simplest products to identify and select are the PET bottles; a circuit for PET flakes recovering/selecting / washing has been created, introducing into the market a big quantity of very good quality scraps.

Transforming these flakes into a value-increased product is exactly the best example of where a twin-screw co-rotating extruder can show all its quality and advantages.

Extrusion/recycling of PET foil without dehumidification and crystallization

The extraordinary feeding capacity of a co-rotating extruder allows the introduction of even 100 % recycled scraps without affecting the machine throughput.
The extrusion of a PET thermoformable foil with a co-rotating machine is a very cheap process with halved energy costs in comparison to the traditional systems.
Exploiting the extreme efficiency of the co-rotating extruder degassing system, it is possible to process the PET without the need to dehumidify and consequently crystallize the flakes before extrusion. All this maintains a degradation degree, natural for PET, within well acceptable limits for the intended final applications. 

Dehumidification & crystallization are processes requiring high-energy consumption and by avoiding these phases, in addition to the typical low consumption of the co-rotating extruder, you can get a decisively competitive production cost.


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