Energy-Efficient Bottle Blowing with PCR
At K 2022 this month, W. Müller is presenting a system for PCR processing in a three-layer coextrusion, using an energy-saving barrel-heating system.
W. Müller’s ReCo3 system at K 2022 coextrudes a three-layer parison with a PCR core. Two vertical extruders for the thin virgin inner and outer layers are mounted over the head. Particularly interesting is the more compact and energy-saving barrel heating system with aluminum heating tapes instead of ceramic heaters. (Photo: W. Müller)
In line with the show’s emphasis on sustainability and the circular economy, W. Müller will be highlighting its experience with processing post-consumer recycle (PCR) at K 2022 this month in Düsseldorf. The company will present a ReCo3 system designed specifically for processing PCR in the core of a three-layer coextrusion sandwiched between thin layers of virgin resin.
An interesting feature of this system is a energy-saving barrel heating/cooling system supplied by Austrian heating specialist Keller, Ihne & Tesch (also exhibiting at K). The system uses standard air-cooling fans plus special heating tapes made of aluminum instead of the usual ceramic. The metal tapes are said to be more stable, and to distribute heat energy more quickly. This modified heating/cooling combination saves around 2000 W in this application, according to W. Müller, and the energy is distributed over the entire area, but the unit does not get hot on the outside, enhancing worker safety. What’s more, it is considerably more compact than conventional heating tapes, the company states.
Related Content
-
Film Extrusion: Boost Mechanical Properties and Rate of Composting by Blending Amorphous PHA into PLA
A unique amorphous PHA has been shown to enhance the mechanical performance and accelerate the biodegradation of other compostable polymers PLA in blown film.
-
‘Monomaterial’ Trend in Packaging and Beyond Will Only Thrive
In terms of sustainability measures, monomaterial structures are already making good headway and will evolve even further.
-
Compatibilizers Aid Recycling & Upcycling of Mixed Resins
Compatibilizers are proving their worth in boosting critical properties such as impact/stiffness balance of PCR and PIR blends of polyolefins and other plastics.
