Evaluation of Fastness Performance and Colour Strength of Reactive Dyed Cotton Single Jersey Knitted Fabric at Different Shade Depths
Year: 2026
Type: article
Abstract: The dyed samples were evaluated for color fastness to washing, color fastness to rubbing (dry and wet), and color strength (K/S) using standard textile testing methods. The washing fastness results demonstrated excellent resistance to color change, with grey scale ratings of 4–5 for all shade levels, while staining on adjacent multifiber fabrics remained minimal except for slight staining on adjacent cotton fabric at higher shade depths. Dry rubbing fastness showed excellent performance with ratings of 4–5, whereas wet rubbing fastness was comparatively poor, indicating greater dye transfer under moist friction conditions. Reflectance values decreased from 74.01% to 69.48% with increasing shade depth, while calculated color strength (K/S) increased from 0.046 to 0.067, confirming greater color depth at higher dye concentrations. A comparison with industrial reactive dyeing practices in Bangladesh indicated consistency between laboratory findings and practical textile dyeing behavior. The results suggest that the selected reactive dyeing conditions provide satisfactory washing durability and color strength for cotton knitted fabric. However, wet-rubbing fastness remains an area requiring further process optimization.
Institutions: Donghua University, Chandigarh University, University of Rajshahi
Language: English
Subfield: Polymers and Plastics
Field: Materials Science
Domain: Physical Sciences
Open Access status: diamond
OpenAlex ID: W7162424068