Optimization of dyeing conditions for bamboo-cotton blended fabrics: A study on temperature sensitivity, chemical and mechanical properties, and environmental performance
Year: 2025
Type: article
Abstract: Bamboo fibre is a regenerated cellulose renowned for its eco-friendly profile and comfort, but its dyeing processes often involve environmentally harsh conditions. We present a systematic optimization of reactive dyeing for 100 % bamboo, 100 % cotton and a 70/30 cotton-bamboo blended fabric, focusing on the critical role of temperature. Fabrics were dyed with CI Reactive Black 5 at 50 °C, 60 °C and 70 °C, and evaluated for colour performance, mechanical properties and environmental impact. The key finding was that a dyeing temperature of 60°C delivered the optimal balance for all fabrics, maximizing colour yield (K/S) and dye fixation while minimizing fibre damage and environmental effluent load. The 70/30 cotton-bamboo blend emerged as a superior sustainable alternative, outperforming pure cotton with an 8–10 % higher colour yield, 25–35 % greater water absorbency and significantly reduced shrinkage. Furthermore, the blend demonstrated a substantial environmental advantage, reducing wastewater Total Dissolved Solids (TDS) by 20–25 % and Chemical Oxygen Demand (COD) by 10–15 % compared to pure cotton. Mechanically, the blend successfully combined the high dye affinity of bamboo with the structural stability of cotton, resulting in enhanced bursting strength and pilling resistance. Our research establishes an eco-friendly dyeing protocol for bamboo-cotton blends, confirming their potential as high-performance textiles that align with sustainable manufacturing goals.
Source: Advances in Bamboo Science
Authors: Faridul Islam Ovi, Redwan N. Sajjad
Institution: Bangladesh University of Engineering and Technology
Language: English
Subfield: Building and Construction
Field: Engineering
Domain: Physical Sciences
Open Access status: gold
Estimated APC paid: $1,490
OpenAlex ID: W7114794629