Utilization of tea residue for coloration of wool/acrylic blended yarn

Document Type : Research Paper


1 Textile Engineering Department, Primeasia University, Dhaka, Bangladesh.

2 Department of Wet Process Engineering, Bangladesh University of Textiles, Dhaka, Bangladesh.

3 Department of Yarn Engineering, Bangladesh University of Textiles, Dhaka, Bangladesh.

4 Department of Textile Engineering, Southeast University, Dhaka, Bangladesh.

5 Department of Environmental Science, Bangladesh University of Professionals, Dhaka, Bangladesh.



Natural dyeing has regained its popularity in order to keep the environment clean and safe by reducing the use of harmful chemicals in the dyeing process. Consequently, different natural dyestuff has been used in textile coloration: marigold, henna, onion skin, roots, and tree bark. Among these dyestuffs, tea has been used for the coloration of textiles. Around the world, including Bangladesh, a lot of tea is consumed on a daily basis. After consumption, the tea residue is disposed of in open spaces, which is considered a source of environmental pollution. Due to the adverse effect on the environment, this experiment used tea residue to dye wool/acrylic blended yarn to make the dyeing process more eco-friendly. Four different mordanting agents were used to determine the one most suitable for dyeing wool/acrylic blended yarn using tea residue. To evaluate the performance of the dyed yarn, the color-coordinate value and different colorfastness properties were measured.


Main Subjects

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