Extrusion International 4-2018

34 Extrusion International 4/2018 FILM EXTRUSION – CASE STUDY The line concept sets new standards with regard to repro- ducibility thanks to MT: the patented mechatronic polish- ing stacks technology, and the user-friendliness and effi- ciency of the production process. All line settings are saved using an extensive recipe management system, meaning that time-consuming reconfigurations due to frequent product or colour changes are a thing of the past. “As well as the great tolerances and fast colour changes, re- producible composite films were pivotal to our decision,” commented Niklas Rad, project head at RPC Bebo Plastik. “The opportunity to test composite films on a 9-layer bar- rier line in the Reifenhäuser technology centre assured us that we were using the right technology.” Significantly less energy and raw material consumption Reducing raw material costs by saving on raw materials is of prime importance to filmmanufacturers. Reifenhäuser CSC meets this requirement with the REIcofeed 2.2 coex- trusion feedblock. An internal encapsulation device re- places barrier rawmaterials and tie resin at the edges with inexpensive ground stock without an additional extruder being required – which saves space. This is an advantage as regards efficiency, as film manufacturers consume less energy and raw materials. Lars Bergheim, regional sales manager at Reifenhäuser Cast Sheet Coating, had this to say about the benefits: “The further development of Reifenhäuser’s tried and tested technology allows the barrier and tie resin layers to be optimally distributed across the width, while the entire composite film has very good individual thickness tolerances. This results in a high degree of raw material efficiency.” The project’s progression reflects the systematic achieve- ment of an individual customer requirement through the broad-based development capabilities of the Reifenhäus- er Group. Reifenhäuser Cast Sheet Coating GmbH & Co. KG Spicher Str. 46, 53844 Troisdorf, Germany www.reifenhauser-csc.com RPC Bebo Plastik www.rpc-bebo.com Barrier Technology convinces British Packaging Manufacturer The mechatroni polishing stack MIREX MT from Reifenhäuser Cast Sheet Coating for barrier film applications (Photo: RPC Bebo Plastik) Reifenhäuser is a successful global specialist operating in the plastics processing industry with a range of technologies for manufacturing packaging solutions. The Reifenhäuser Cast Sheet Coating (CSC) business unit boasts outstanding process technology for plastics processing,whichpackagingmanufacturersuse to produce films with a reliable barrier effect. Packaging manufacturer RPC Bebo Plastik also relies on Reifenhäuser CSC’s line concepts and process expertise, with the company’s German site in Bremervörde recently putting into operation a multi-layer extrusion line for the production of barrier films. RPC Bebo Plastik uses its new production line to manufacture packaging items with aroma protection, such as coffee capsules, which act as an excellent barrier, protecting the packaging contents from oxygen, light, and humidity thanks to precise multi-layer technology