Ethiopia Institute of Technology- Mekelle

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    Optimization of Dyeing Process Parameters on Cotton Knit Fabric Using Taguchi Method (Case Study: MAA Garment and Textiles Factory)
    (Mekelle University, 2025-06-16) Ashenafi Kahsay
    The research focus on optimizing the dyeing process parameters on knit fabric by applying the Taguchi method in the selecting case is in MAA Garment and Textiles Factory. Taguchi method is used to find the overall optimum dyeing condition and to investigate which machining parameters significantly affect the performance characteristic. Dyeing in the textile industry is all about giving color to fabrics. It's a process that uses dyes to permanently color finished fabrics. The goal is to achieve a specific shade with good colorfastness, meaning the color should resist fading or bleeding during washing and use. The study has identified the optimal conditions for dye concentration, temperature, time, PH, Material Liquor Ratio, salt, alkali, and fixing agent and L27(38) orthogonal array by using Minitab and Response factor is washing fastness. Accordingly, the product dye concentration, temperature, MLR, salt concentration, alkali concentration, PH, fixing agent, and time (A3, B2, C2, D3, E2, F2, G3 and H2) can be replaced. The main effect plot and the ANOVA has jointly showed that, dye concentration for the experiment is found to be highly influential of the performance for it attains an F value 25.56, higher than each dyeing parameter. From the ANOVA table has also displayed the minimal role of some of the process parameters such as temperature, MLR, and salt concentration under the selected alpha value of 0.05