Study on Recovered Paper Quality in Germany and Method for Determining the Composition of Recovered Paper Samples, 19PEERS

Paper products, and thus recovered paper, are subject to changes and innovations like many other products. The effects of these innovations are evident in the recycling cycle and continuously change the quality of recovered paper. As part of a comprehensive study, the current status of recovered paper quality in Germany was determined and the data obtained was compared with previous studies. The investigations were limited to the most important grades of recovered paper. Samples of recovered paper were taken representatively from all over Germany. On these samples, the composition, the moisture content, mechanical, optical and suspension properties as well as chemical constituents were examined. An important quality parameter in the analysis of recovered paper is the composition of the recovered paper grades. Today, the analysis of the composition of recovered paper samples is often still carried out manually, which leads to very high personnel costs. As part of the project, a fully automated system for analyzing the composition of recovered paper samples was developed. The system isolates objects from the paper samples and places them individually in a measuring cell where they are analyzed by sensors and assigned to one of 10 object classes with the aid of artificial intelligence.  

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