Monthly Archives: January 2014

New Melt Pump Invention Needs No Inlet Pressure

By Jan H. Schut A new melt pump concept-the first counter-rotating twin-screw melt pump-was introduced at last year’s K Show by Henschel GmbH in Kassel, Germany (www.henschel.de). Melt pumps, which create pressure between a co-rotating twin-screw compounding extruder and die, … Continue reading

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First Automatic Sorting of Plastic Film by Polymer

By Jan H. Schut Postconsumer mixed plastic film is at the bottom of the MRF (material recovery facility) waste chain. Both in Europe and the U.S. mixed plastic film, known as “2D 1-7” (two dimensional film, polymers 1 through 7) … Continue reading

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