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Manufacture of Cellulose Fibres from Alkaline Solutions of Hydrothermally Treated Cellulose Pulp

Research and development

Authors:

• Wawro Dariusz
  Institute of Biopolymers and Chemical Fibres, Łódź, Poland
• Stęplewski Włodzimierz (j/w)
• Bodek Andrzej (j/w)

Full text

Abstract: The use of hydrothermally treated cellulose pulp for the manufacture of cellulose fibres is described. Hydrothermal treatment allows for the preparation of cellulose pulp characterised by a polymerisation degree, DP, within the range of 290 - 405 and a low polydispersity Pd of 2.0 - 3.0. A method of preparing alkaline solutions with a 7.45% content of ellulose, and alkali ratio of 1.05 is described. The impact of sulfuric acid concentration, the temperature of the coagulation bath, the as-spun draw of the fibre, the total draw ratio and drying conditions upon the mechanical properties of the fibres obtained was investigated. Trials at a high laboratory scale were conducted to spin multifilament cellulose fibres with a tenacity of 20 - 22.5 cN/tex and an elongation at break of 10 - 15%.

Tags: cellulose pulp, hydrothermal treatment, alkaline cellulose solutions, cellulose fibres

Citation: Wawro D., Stęplewski W., Bodek A.; Manufacture of Cellulose Fibres from Alkaline Solutions of Hydrothermally-Treated Cellulose Pulp. FIBRES & TEXTILES in Eastern Europe 2009, Vol. 17, No. 3 (74) pp. 18-22.

Published in issue no 3 (74) / 2009, pages 18–22.