Plastics Technology

AUG 2016

Plastics Technology - Dedicated to improving Plastics Processing.

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©2015 Bunting Magnetics Co. Get The Metal Out buntingmagnetics.com 800-835-2526 Bunting. Because Other Metals Don't. Whether injecting, blow-molding or recycling, get the metal out of your plastics with Bunting ® metal detectors and separation equipment. Our strong, high-energy magnets, quality manufacturing and innovative designs that work in any plastics conveying system will help drive your business forward. Grinder/Shredder Conveyor with Under Belt Style (S Coil) Metal Detector and Flip Gate Reject FF Series Drawer Magnet quickTRON™ 03R Metal Detector Some Metal Goes Great With Plastic. THE NEW SERVOS PRECISION • EFFICIENCY ¥ VALUE DRIVING BOY E-Series hybrids have caught and are passing all-electric machines. Call 1-610-363-9121 for a quote or download more nformation at dr-boy.de/en/technology/drive-concepts Spritzgiessautomaten Hybrid Purging Compound for PP Color Changes What's said to be the first "hybrid" purging compound, specifically engi- neered for PP color changes, has been launched by the Dyna-Purge div. of Shuman Plastics, Depew, N.Y. Dyna- Purge A reportedly combines features of both mechanical and chemical purging products, with non-hazardous ingredients that reach all stagnation areas and break down the color contamination. Commissioned by the company, an extensive independent study of Dyna-Purge A at The Behrend College of Penn State Erie, Erie, Pa., compared commercial mechanical (abrasive) and chemical purging compounds, and in-house resins for purging, during PP color changes. In both purging and post-purge results, only Dyna-Purge A left the injec- tion molding machine clean and free of contamina- tion, the company says. Results showed that the purging process successfully transitioned from black to natural PP in only seven shots using the new hybrid purging compound. Engineered to exit the machine with the next production resin, leaving behind no residual purging compound, Dyna- Purge A is designed for a variety of applications including hot runners and extruded profile, sheet, and cast film, with no minimum clearances. Unlike most chemical purging compounds, it requires no soaking or temperature alterations, creates no noxious fumes and odors, and leaves no residuals. 866-607-8743 • dynapurge.com MATERIALS 62 AUGUST 2016 Plastics Technology PTonline.com Keeping Up W it h Technolog y

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