Dyeing of cotton fabric with Euclea divinorum extract using response surface optimization method
Research Journal of Textile and Apparel
ISSN: 1560-6074
Article publication date: 5 May 2021
Issue publication date: 13 April 2022
Abstract
Purpose
The majority of the synthetic dyes have been found to be non-biodegradable, toxic and carcinogenic. As a result, there has been a growing trend toward the use of natural dyes as alternates to synthetic dyes. This shift calls for more research to come up with more sources of natural dyes to satisfy their increasing demand. Euclea divinorum plant has been used traditionally as a source of dye, however, its textile dyeing properties have not been studied. This study aims to determine the textile dyeing properties of E. divinorum extract.
Design/methodology/approach
Optimization of dyeing conditions of Euclea divinorum natural dye extract on the cotton fabric was done using response surface methodology (RSM). The combined effects of examined dyeing conditions on the relative color strength (K/S) were studied using a central composite experimental design. Analysis of variance (ANOVA) was used to determine the significance of the statistical model generated for the study. Mordanting effects were measured using standard ISO wash, rub and lightfastness tests.
Findings
The optimum dyeing conditions were found to be 68 min, pH 3.3 and 82°C with color strength 0.609. Temperature and pH showed some interaction effects during the dyeing experiments. The predicted optimum K/S value was validated experimentally using the optimum conditions and was found to be in agreement with the experimental values. All the metallic mordants used enhanced the color strength and provided a variety of brown shades, therefore, a suitable alternative for the toxic synthetic dyes.
Originality/value
Optimization of dyeing conditions of Euclea divinorum dye on cotton using RSM and mordanting at optimal conditions has not been done elsewhere.
Keywords
Acknowledgements
This research was supported by the Africa Center of Excellence in Phytochemicals, Textile and Renewable Energy (ACE-PTRE) of which we are highly appreciative. Appreciation also goes to the School of Sciences and Aerospace Studies, Department of Chemistry and Biochemistry of Moi University. The authors acknowledge the continuous technical support of Paul Kipkorir and John Kafafa.
Competing interests: The authors declare that there is no conflict of interest regarding the publication of this paper.
Ethics approval and consent to participate: Not applicable.
Citation
Manyim, S., Kiprop, A.K., Mwasiagi, J.I., Achisa, C.M. and Odero, M.P. (2022), "Dyeing of cotton fabric with Euclea divinorum extract using response surface optimization method", Research Journal of Textile and Apparel, Vol. 26 No. 2, pp. 109-123. https://doi.org/10.1108/RJTA-10-2020-0115
Publisher
:Emerald Publishing Limited
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