The deciding factor is the highly efficient, food contact compliant decontamination BEFORE the extrusion process. The patented pre-treatment of PET flakes at raised temperature and in high vacuum before the extrusion process removes moisture and migration materials from the feedstock very effectively and in a stable process environment. Thanks to the vacuum treatment, stable IV values can be achieved even in the case of varying moisture levels and different IV values in the input material. As input materials with up to 1.5% moisture can be processed, no expensive pre-drying is necessary, unlike other processes available on the market. Extruder degassing is not required either, meaning that a short extruder screw can be used and the thermal stress on the material is reduced as a result. Furthermore, the unique, patented configuration means considerably less maintenance compared to other systems.
25-Feb-14 
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