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%0 Thesis
%A Kühn, Justin
%T Technical development and sociological analysis for a higher cotton fibre quality in ginning
%I Rheinisch-Westfälische Technische Hochschule Aachen
%V Dissertation
%C Aachen
%M RWTH-2026-00632
%P 1 Online-Ressource : Illustrationen
%D 2025
%Z Veröffentlicht auf dem Publikationsserver der RWTH Aachen University 2026
%Z Dissertation, Rheinisch-Westfälische Technische Hochschule Aachen, 2025
%X This thesis addresses the issue of shortened cotton fibres during ginning, which hampers mechanical recycling and reduces overall recycling rates. Long and strong fibres are crucial for multiple recycling cycles. Otherwise, short fibres lead to waste. The ginning process faces challenges such as poor machine settings, wrong moisture management in processing, storage in dusty surroundings and a lack of practical knowledge among workers. The hypothesis posits that better moisture management and structured knowledge transfer (e. g. in a Train the Trainer program) can help reduce fibre length losses in ginning.The research combines literature reviews, expert interviews and on-site investigations in India and Egypt with lab developments at RWTH Aachen University. It focuses on reliable moisture measurement techniques to preserve fibre length. Direct methods like the oven standard are accurate but slow, while indirect methods, including near-infrared spectroscopy (NIR) and electrical resistance measurement, offer quicker alternatives. Resistance measurement proves most viable for on-line control due to its low cost and robustness. Therefore, this system is further developed and used as a 50 
%F PUB:(DE-HGF)11
%9 Dissertation / PhD Thesis
%R 10.18154/RWTH-2026-00632
%U https://publications.rwth-aachen.de/record/1025255