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Processing of Industrial Hemp into Papermaking Pulps Intended for Bleaching

Research and development

Authors:

• Danielewicz Dariusz
  Institute of Papermaking and Printing, Technical University of Lodz, Łódź, Poland
• Surma-Ślusarska Barbara (j/w)

Full text

Abstract: Research was conducted into obtaining fibrous semi-manufactured products for subsequent bleaching from industrial hemp stalks, hemp wood, and hemp bast fibres. The course of delignification of these kinds of fibrous raw materials in the kraft pulping process was investigated. It was found that there are differences in this process due to significant differences in the chemical composition of hemp stalks, hemp wood, and hemp bast fibres. In the case of hemp bast fibres, an attempt at oxygen delignification was made with the omission of the pulping process. Attempts were also made to carry out the joint pulping of industrial hemp and wood. It was shown that when industrial hemp and wood are pulped together, they are delignified similarly to that during separate processes.

Tags: industrial hemp, kraft pulping, oxygen delignification, kappa number,

Citation: Danielewicz D., Surma-Ślusarska B.; Processing of Industrial Hemp into Papermaking Pulps Intended for Bleaching. FIBRES & TEXTILES in Eastern Europe 2010, Vol. 18, No. 6 (83) pp. 110-115.l

Published in issue no 6 (83) / 2010, pages 110–115.