Extrusion International 5-2022

43 Extrusion International 5/2022 is guaranteed. Quality assurance can be provided with an online viscom- eter VIS for measuring melt viscosity. As demand for PET bottle flakes outpaces supply and processors are looking for alternative feedstock (e.g. to fullfil recycled content man - dates) the MRS jump offers an excel - lent solution for PET thermoform, film or fiber recycling, while the new - ly developed MRS cutter compactor makes it possible to use low bulk den- sity materials. In parallel, with Gneuss’ head- quarters only about 200 km from the show, a complete PET sheet extrusion line with an OMNI max Recycling Ma- chine – consisting of an MRS jump 70, Gneuss’ deep vacuum system and a fully-automatic filtration system RSF - genius 75 – and a sheet downstream with a 500 mmwide extrusion die will be running in Gneuss’ technical cen- ter open to visitors. Additionally, an OMNI boost Re- cycling Machine with a polyreactor JUMP will be operating in Gneuss’ technical center for an online dem- onstration. The JUMP can lift the IV value of a PET melt up to 0.95 dl/g. In the JUMP the polymer passes over several slow turning elements which create a polymer film, the surface of which is constantly re- newed. The reactor vessel is kept un- der vacuum, through which volatile substances are reliably removed. By regulating the residence time in the reactor, the vacuum, the fill level and the speed of rotation of the agitat- ing devices, the polycondensation reaction can be altered to achieve the required product properties. The JUMP is a robust and reliable liquid state polycondensation system (LSP) and a compact, quick and efficient al - ternative to conventional solid state systems (SSP). It enables direct rein- troduction of the polymer into the production process without the need to remelt the PET. Filtration Technology Gneuss Filtration Technology will exhibit several different models of their patented Rotary Filtration Sys- tems. These continuous filtration sys - tems are characterized by a filter disk on which the screen cavities are locat- ed in a ring pattern. Screens can be changed on the part of the filter disk that is not active in the melt channel, while the production process contin- ues to run without any interruptions or disturbances. Gneuss’ top model, the RSF genius , operates with an integrated back- flushing system offering self-cleaning for very demanding applications and highest quality requirements. Screens can be automatically re-used up to 400 times and filtration finenesses below 10 microns/1200 mesh are available. There will be an RSF genius 250 on display, with an active screen area of 1350 cm 2 /209 square inches, for throughputs of several thousand kilos per hour, depending on the type of polymer and the filtration fineness. Patented Rotary Filtration System RSFgenius