Pentex and the Recycling of PET

PET is one of the few materials that can be recycled as well as upcycled. By raising properties through the use of SSP, reclaimed bottles can be melt filtered and treated to achieve higher intrinsic viscosity (iv), or sufficient levels of iv to return to use in water bottles as well as carbonated beverages.

By supercleaning, recycled materials can be used directly in contact with food. Where degradation causes yellowing we have solutions to correct the colour. For production of pellets, film and sheet we can offer complete solutions as well as sub-systems to dry, superclean and sort flakes ,and to measure iv, colour, thickness and surface quality.

Bottle Upcycling

PET has an important economic advantage: it can be "upcycled". What comes out of the recycling process can be a better quality PET than what went in. In order for R-PET to meet the high quality standards required by applications such as beverage bottles or strapping bands, it undergoes solid state polycondensation.

This process not only increases the intrinsic viscosity (IV), it also decontaminates the material so effectively that it is suitable for direct food contact applications.

Bottle to Bottle

By adding SSP reactors, the number of which will depend on the requirements of the application, the machine concept meets even the most stringent demands as to IV and food contact.

 

Bottle to Sheet

Food grade PCR PET produced with viscotec decontamination equipment exceeds the requirements of national and multinational food authorities. Long term material monitoring shows no difference between R-PET decontaminated by viscotec and virgin material.

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