Journal
NATURAL PRODUCT RESEARCH
Volume 31, Issue 1, Pages 22-31Publisher
TAYLOR & FRANCIS LTD
DOI: 10.1080/14786419.2016.1207072
Keywords
Tamarix aphylla (L; ) Karst; natural dye; cationising agents; fastness properties; mordanting; environmental indicators
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This research work involves an eco-friendly dyeing process of modified cotton with the aqueous extract of Tamarix aphylla leaves. During this process, the dyeing step was carried out on modified cotton by several cationising agents in order to improve its dyeability. The influence of the main dyeing conditions (dye bath pH, dyeing time, dyeing temperature, salt addition) on the performances of this dyeing process were studied. The dyeing performances of this process were appreciated by measuring the colour yield (K/S) and the fastness properties of the dyed samples. The effect of mordant type with different mordanting methods on dyeing quality was also studied. The results showed that mordanting gave deeper shades and enhanced fastness properties. In addition, environmental indicators (BOD5, COD and COD/BOD5) were used to describe potential improvements in the biodegradability of the dyebath wastewater. Further, HPLC was used to identify the major phenolic compounds in the extracted dye.
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