Prof. Dr. R. Kozłowski graduated from A. Mickiewicz University, Poznan, Poland (chemical faculty, applied chemistry). Professor of Chemical Technology. Director for scientific research of the governmental Institute of Natural Fibres, Poznań, Poland (1976 – 1987, and 2016 – 2017), Director General of  this Institute (1987 – 2008). From 2009 – 2016 professor consultant at the Institute of Natural Fibres and Medicinal Plants, Poznań. From 2009 –  2015 scientific advisor at the Institute for Engineering of Polymer Materials and Dyes in Toruń. From 2004 constantly: editor – in- chief Journal of Natural Fibers (Haworth Press 2004 – 2008, Taylor & Francis 2008 –  until now). Professor Honoris Causa of Pontifical Catholic University Ibarra, Ecuador.

The Textile Institute (UK) honorary member of Council from 1988. From 1989 constantly: Coordinator of FAO ESCORENA European Cooperative Research Network on Flax and other Bast Plants. From 2008 coordinator of the ESCORENA Focal Point (European System of Cooperative Research Networks in Agriculture) under auspices of FAO. In period 2009 – 2013 Director of BASTEURES project, Aurel Vlaicu University of Arad, Romania. Author of chapters in more than 30 books edited by: Woodhead Publishing Ltd., Elsevier, Nova Science Publishing, Taylor & Francis and others.

Editor of the Handbook of Natural Fibres, 2 volumes (2012), Woodhead Publishing, UK and up-dated and published in January 2020, second edition of this 2 volumes Handbook of Natural Fibres (Elsevier). Editor of the Book: Natural Fibers: Properties, Mechanical Behavior, Functionalization and Applications, eds. R. Kozłowski, M. Muzyczek, Nova Publishers, USA, 2017 and co-author of several chapters in this book. Co-author of the chapter Hemp, Flax and other Plant Fibers in the book Sustainable Fibres for Fashion and Textile Manufacturing, published by ELSEVIER (The Textile Institute Book Series) in 2022.

Examiner and evaluator of several PhD and professor thesis – abroad and in Poland. Promotor of PhD thesis. Author of 30 patents, 26 implemented technologies. Co-author of more than 300 papers. Expert in natural fibrous materials, mainly flax and hemp, especially in cannabinoids and terpenoids from flowering panicles of hemp, methods of their obtaining and modification, polymers and composites - their technical application and modification, flame retardancy of natural and man-made fibres and derived products. Member of American Chemical Society (ACS), ICOMOS (International Council of Monuments and Sites), Paris, and many other professional scientific and innovative institutions in Poland and abroad.