NPE 2018 | SHOW PREVIEW
Neutrex will showcase its latest developments in its range of Purgex purging compounds for applications including plastics extrusion. At the show, Neutrex will discuss the latest compounds that speed up colour changes, eliminate contamination, reduce rejects, and decrease downtime. They are engineered to clean the barrel, screw and other parts of the system. It will also feature a number of seminars on its
stand, including one from consulting engineer Allan Griff, called ‘The Ten (11) Key Principles of Extrusion’. Purgex grades comprise active ingredients with
a resin carrier and are engineered to clean thor- oughly and quickly to maximize colour/resin change turnaround and reduce scrap, says the company. Most are designed for versatility and are effective on a broad range of resins and multiple production methods. �
www.purgexonline.com
Next Generation Recycling of Austria will show- case a range of recycling methods, including its P:React LSP (or ‘liquid state polycondensation’) reactor. NGR says this is the first time it has high- lighted the technology at a North American show. Because PET is converted to the liquid phase during LSP, harmful chemicals can be quickly removed while still offering high process stability. The FDA has given approval for 100% food contact to the LSP recycling process. In sheet manufacturing, the high process stability cuts process downtime, meaning higher production volume in the same time frame. Also, users achieve more consistent sheet thickness, and allows downgauging without loss of properties – both of which lead to material savings. The LSP
process can use 100% post-consumer rPET – such as bottle-flakes – so no virgin material is needed. As well as pellet manufacturing, P:React is
increasingly being used for direct production of sheet and film, which combines recycling and manufacturing into a single step. Avoiding the additional energy and handling steps of a separate production process helps to boost efficiency. A special feedback loop allows users to control
the exact output Intrinsic Viscosity (IV) even with variations in input IV, to create higher value rPET. In addition, NGR Connect gives the user a live digital connection to their recycling process. Operating parameters on the NGR system are recorded and made accessible to the user on any end device (such as a tablet or smartphone). In conjunction with P:React, for instance, NGR Connect monitors decontamination performance. �
www.ngr.at
Processing Technologies International (PTI), which makes sheet extrusion machinery, has reduced the footprint of its Super-G HighSpeed Extruders, to give what it says is the highest extrusion output per square foot in the industry. It will showcase the extruders at NPE. The superior manufacturing output is made possible by the introduction of a tuck under motor which creates a smaller footprint for both the models used to process polypropylene (PP) and high-impact polystyrene (HIPS) for packaging
“Our high-speed extruder technology sets a new industry standard in terms of
www.filmandsheet.com May 2018 | FILM & SHEET EXTRUSION 57
Left: NGR’s LSP process removes chemicals quickly while maintaining process stability
Above: NDC’s new Web Surface Inspection Systems help manufacturers to achieve zero defects
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