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11-23-2018

LSP System Succeeds on NGR–Kuhne PET Day

Highly-Sophisticated Packaging Films out of PET

More than 117 representatives of the plastics industry from 24 countries met for an open day at the Upper Austrian mechanical engineering company Next Generation Recycling Machines (NGR). In cooperation with the German machine supplier and extrusion specialist Kuhne GmbH, Sankt Augustin,an recycling process for polyethylene terephthalate (PET) was demonstrated to the audience.

Different Forms of PET Waste Can Be Mixed and Recycled

Achieving food grade standards, decontamination and rebuilding of the molecular chain structure takes place in the liquid phase of the PET in the LSP process. This principle allows recyclers more flexibility with regard to the input materials. Different forms of PET waste can be mixed and recycled. This means not only bottle flake, but also scrap fiber, sheet, thermoform waste, strapping, and other lower value scrap streams can be recycled to much higher IV and higher value recycled products.

In addition, the NGR process at the outlet provides controlled mechanical properties of the recycled PET. Furthermore, LSP can be used to process co-polymer forms of PET (PET-G) and polyolefin contents (e.g. PE) without any problems. In addition, it had been demonstrated that PET/PET-G as well as PET/PE compounds can be easily and safely processed using Liquid State Polycondensation without any limitations.Until now, this was not possible with conventional recycling processes.

  • NGR recycling line processing rPET sheet flakes with LSP technology directly to Kuhne food grade sheet (© NGR)

    NGR recycling line processing rPET sheet flakes with LSP technology directly to Kuhne food grade sheet (© NGR)

  • International audience came to see the LSP technology in action at NGR – Kuhne PET day (© NGR)

    International audience came to see the LSP technology in action at NGR – Kuhne PET day (© NGR)

  • PET/PET-G as well as PET/PE compounds can be easily processed with LSP (© NGR)

    PET/PET-G as well as PET/PE compounds can be easily processed with LSP (© NGR)

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Commercial - the next slide will be displayed in seconds - skip

Commercial - the next slide will be displayed in seconds - skip

After the melt has passed the LSP reactor, it can either be granulated or – like at the demonstration in Feldkirchen – processed to FDA approved film with outstanding optical and mechanical properties by implementing devices such as a sheet die, a roll stack, cutting devices or a winder. These films are mainly used for thermoforming applications.

PET is a thermoplastic that is widely used in beverage bottles and numerous other food contact applications, as well as in the manufacture of textiles. Previous methods of recycling PET back to near-virgin quality have shown limitations. The LSP recycling method developed by NGR now should open up completely new possibilities for the plastics industry.

Company profile

NGR Next Generation Recyclingmaschinen GmbH

Gewerbepark 22
AT 4101 FELDKIRCHEN
Tel.: +43 7233 70107-0
Fax: +43 723377 70107-2

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