Roshan Paul is associated with the Institut für Textiltechnik of RWTH Aachen University, Germany. He is also a Professor in the University of Beira Interior, Portugal. He has previously worked in the Spanish National Research Council (CSIC), Spain, Clariant, India, LEITAT Technological Center, Spain and Hohenstein Institute, Germany. He is a Chartered Textile Technologist and a Fellow of The Textile Institute (CText FTI), a Chartered Colourist and a Fellow of the Society of Dyers and Colourists (CCol FSDC), a Chartered Engineer and a Fellow of The Institution of Engineers (India) (CEng FIE), a Fellow of the Textile Association (India) (FTA), and a Senior Life Member of American Association of Textile Chemists and Colorists. He is an alumnus of the Institute of Chemical Technology, Mumbai, India. Contact e-mail: paulrosh@yahoo.com Thomas Gries is Professor and Director of the Institut für Textiltechnik of RWTH Aachen University, Germany. His achievements are commendable, and his contributions to the field of textile technology and fibre based composites have had a profound impact. Furthermore, his leadership in transforming the Institut für Textiltechnik into a comprehensive provider of textile innovation, digitalisation and sustainability initiatives underscores his dedication to pushing the boundaries of textile technology. His involvement in textile recycling, decarbonisation, biotransformation and efforts to enhance energy and material efficiency further solidifies his status as an undisputed leader in the field. Contact e-mail: thomas.gries@ita.rwth-aachen.de