INNOVATION | RECYCLING
Right: With the manufacture of thin-walled sample parts, Engel present- ed the iQ weight control smart assis- tance system at K 2019, with a recyclate application for the first time
companies. Millad NX 8000 clarifier for PP from Milliken has received Critical Guidance Recogni- tion from the Association of Plastic Recyclers (APR) in the US. This recognition validates that the clarifier is compatible with plastic packaging recycling. To date, the Millad NX 8000 additive is the only PP clarifying agent to receive Critical Guidance Recognition from APR. As a result, Milliken is investing in a new manufacturing plant that will boost clarifier capacity by 50%. Test results showed that the Millad NX 8000 clarifier met or exceeded the most stringent guidance of the APR Critical Guidance Documents, indicating that the clarifier does not adversely affect the recyclability of PP parts. Milliken says that this can be attributed to a quality control regimen and the clarifier’s high product purity. Machinery companies are also active in adapt- ing and developing technology that facilitate injection moulding of materials with recycled content. Smart assistance systems are paving the way for self-optimising production and automatic correction of quality-relevant parameters is already
a reality for individual phases of the injection moulding process. At K2019, Engel presented the iQ weight control with the example of a recyclate application for the first time. The company says
that extensive tests performed jointly with recycling line manufacturer Erema confirm that the system has great potential for the circular economy. Transport and storage boxes were the application for the use of recycled raw materials. Engel reports that several customers have already processed recyclates in large quantities to produce various containers, with iQ weight control used to improve the process repeatability. The software detects fluctuations in the raw
material and in the ambient conditions, and adjusts the injection profile, switchover point and holding pressure, individually for each shot to suit the current production conditions. “We can process recyclates from different sources and, thanks to iQ
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IMAGE: ENGEL
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