Effect of Temperature on Affinity of Natural Dye from Coconut Coir Fibre for Cotton Fabric

Authors

  • J. M. Jabar Chemistry Department, Federal University of Technology, Akuar, Nigeria
  • L. T. G. Abayomi Chemical Science Department, Adekunle Ajasin University, Nigeria

DOI:

https://doi.org/10.53555/ans.v2i2.96

Keywords:

affinity,, coir, crude,, dye-uptake, endothermic

Abstract

Natural dye extracted from coir fibres with Na2CO3 (0.1 M) solution as extracting solvent in
liquor ratio 1:50 gave percentage yield of 10.06 % crude dye that was used to dye alum premordanted
cotton fabric using liquor ratio 1:20 at 2 % dye depth on a water bath. Dye-uptake and affinity of extracted natural dye for the treated cotton fabric varied from 52.8 mg/g to 63.2 mg/g and -8.7 kJmol-1 to -10.7 kJmol-1 respectively for dyeing temperature of 30 oC to 90 oC, while the enthalpy and entropy were 1.4 kJmol-1 and 33.3 Jmol-1 respectively, the positive values of enthalpy and entropy showed that dyeing process was endothermic and spontaneous respectively, while the negative value of the affinity of extracted natural dye for the cotton fabric indicated that dyeing process was irreversible.

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References

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Published

2016-02-29

How to Cite

Jabar, J. M., & Abayomi, L. T. G. (2016). Effect of Temperature on Affinity of Natural Dye from Coconut Coir Fibre for Cotton Fabric. International Journal For Research In Applied And Natural Science, 2(2), 01–08. https://doi.org/10.53555/ans.v2i2.96

Issue

Vol. 2 No. 2 (2016): International Journal For Research In Applied And Natural Science

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Articles

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