Research Article

Optimization of Extraction Conditions and Dyeing Standardization of Eucalyptus Bark as Natural Dye

Saminu Murtala Yakasai1*, Abdulkadir Ahmed Isah1
1 Department of Chemistry, Federal University Dutse, Jigawa State
* Corresponding author: saminumurtalayakasai@njt.tran.org.ng
Published: Aug, 2022
DOI: 10.67637/njt.2022.t5lx1zem
Pages: 40-45
Views: 96
Downloads: 146

Abstract

This study forms an important basis on which a natural dye was extracted from Eucalyptus bark, obtained at federal university Dutse, Jigawa state at different extraction conditions. The dye was extracted at different temperatures with various stirring time. For the extraction process, the effect of stirring was sporadic and the dye extract obtained at boiling after soaking overnight have the maximum colour strength. The dyeing condition was optimized by dyeing four more samples of cotton fabrics at various temperature viz 40 o C, 60 o C, 80 o C, and 100 o C respectively. Maximum colour strength was obtained at 100 °C which is the optimized dyeing temperature. The optimum sodium sulphate concentration required for best degree of exhaustion was obtained, by dyeing six more samples at the optimized temperature (100 °C) for 60 minutes each with 0 g/L, 20 g/L, 40 g/L, 60 g/L, 80 g/L, 100 g/L sodium sulphate respectively, it was found that the dyeing at 100 g/L yields the maximum colour strength. To obtain the optimum dyeing time, 6 more samples were dyed at the optimized dyeing temperature and electrolyte concentration for 20 minutes, 40 minutes, 60 minutes, 80 minutes, 100 minutes, and 120 minutes, respectively. The dye extract from the optimized conditions was used to dye cotton fabric, by direct dyeing method, in an attempt to attain desirable fastness properties by comparing the fastness properties of dyeing with different dyeing techniques.

Keywords

Eucalyptus bark Natural dye Colour strength Cotton fiber and Dyeing

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How to Cite

Yakasai, S. M., & Isah, A. A. (2022). Optimization of Extraction Conditions and Dyeing Standardization of Eucalyptus Bark as Natural Dye. Nigerian Journal of Textiles, 8(1), 40-45. https://doi.org/10.67637/njt.2022.t5lx1zem

S. M. Yakasai, and A. A. Isah, "Optimization of Extraction Conditions and Dyeing Standardization of Eucalyptus Bark as Natural Dye," Nigerian Journal of Textiles, vol. 8, no. 1, pp. 40-45, August 2022. doi: 10.67637/njt.2022.t5lx1zem

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