Effect of NaOH Treatment on the Interfibrillar Swelling and Dyeing Properties of Lyocell (TENCEL.) Fibres
Research and development
Authors:
- Oztruk Bahar Hale
Christian-Doppler-Laboratory for Textile and Fibre Chemistry in Cellulosics, Institute of Textile Chemistry and Textile Physics, University of Innsbruck, Dornbirn, Austria - Bechtold Thomas (j/w)
 Full text | Abstract: The effect of interfibrillar swelling on swelling degree, carboxyl content, split number, weight loss and dyeing properties by using NaOH solution up to 2.5 M concentration of lyocell fibres was investigated. The Split number and weight loss show the behaviour of fibres during alkali treatment, whereas the water retention value (WRV), carboxyl content and dyeing give information about the properties of samples after alkali treatment. By increasing alkali concentration, the swelling degree, weight loss, split number, total colour difference and K/S values of fibres increased when compared to untreated samples; on the other hand carboxyl content decreased. |
Tags: alkali, cellulose, dyeing, fibre, lyocell, swelling.