Extrusion International 5-2021

49 Extrusion International 5/2021 FEDDEMGmbH & Co. KG www.feddem.com FEDDEM A6-6217 access points for the individual plant components have been designed to allow direct and fast access to ensure the highest possible plant availabil- ity. Upcycling: In order to keep as much plastic as possible in production in the course of global efforts, compact plants for the processing of production waste are becoming increasingly interesting. In upcycling applications, twin-screw extruders are proving their worth in terms of high mixing performance in a gentle process that delivers high- quality recyclate. Additives can be incorporated into the process that, for example, adjust the viscosity and colour of the recyclate for optimal re- use. At the same time, the space require- ment can usually be reduced to amini- mum, which can be a great advantage when setting up in the production en- vironment (see Picture 1). “Screw geometries for FEDDEM extruders in these applications are equipped with FME mixing elements for gentle processing. The process- ing section can be equipped with a variety of wear protection types, depending on the application,” says Hojer. To overcome investment hurdles, the company also arranges attrac- tive leasing solutions for smaller sys- tems. Service: In addition to its plant technology, FEDDEM also offers a wide range of services. From measuring process parts to assessing the overall condi- tion of a plant with recommendations for maintenance measures. “In the meantime, augmented reality (AR) has found its way into everyday service - even to the point of remote commissioning of a plant on another continent,” Klaus Hojer reports. Sustainability Geared Colour and Functional Masterbatch Solutions At Fakuma 2021 in Friedrichshafen, Tosaf /Afula, Israel, and its German subsidiary Tosaf Color Service, Karlstein, will highlight sustainability geared solutions in their wide range of functional, colour and combi-masterbatches for extrusion and injection moulding. These will include colour master- batches for recyclates with a special focus on post-consumer plastics as well as biodegradablemasterbatches. Another fo- cus will be on e-mobility and electronics applications. Here, RAL 2003 Orange and a wide range of UL-listed colours make Tosaf a globally leading producer ofmasterbatches for the electronics and automotive industries. A third key issue will be light diffuser solutions for polymethyl methacrylate (PMMA) and polycarbonate (PC), including coloured grades. These fully harmonise the appearance of covers for light sources with the colour of the surrounding frame or car body colour, making them virtually invisible until illuminated. Consistant colouring of recyclates Due to source-related inconsistencies, recyclates from post- consumer scrap can showsigni fi cant differences in their basic colour. Tosaf has developed highly ef fi cient masterbatches, specially tailored to cover such variations in a way that the fi - nal products meet the customers’ speci fi cations within tight tolerances. Supporting biodegradability Biodegradable polymers can provide sustainable alternatives to conventional grades, and this is particularly true for agricul- tural fi lms. Typically, such fi lms are manufactured with addi- tives to provide speci fi c functionalities ranging from UV sta- bility to antifog and IR fi ltering effects. Tosaf has developed appropriate additive masterbatches based on biodegradable carriers such as polylactic acid (PLA) and resin (rosin). Tosaf Compounds Ltd. www.tosaf.com Tosaf B4-4402 New at Tosaf are orange colour masterbatches for PA, PP and PBT in e-mobility applications (© Vladimka production/shutterstock)