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The document examines how pre-treating lyocell fabric with sodium hydroxide (NaOH) affects its dyeing properties when dyed with reactive dyes. Lyocell fabric samples were pre-treated with concentrations of NaOH from 0.0 to 7.0 mol/dm3 and then dyed. Exhaustion, fixation, and color strength were measured. The results showed that NaOH pre-treatment significantly improved color yield, exhaustion, and fixation for all dyes tested. Optimum results were obtained with 2.0-2.5 mol/dm3 NaOH, where all fibers in the

Author

musmanazeem

Language

EN