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This study compares the acid dyeing of Polyamide 6 (PA6) fabric using conventional heating and microwave-assisted techniques. C.I. Acid Blue 324 was used to explore the effects of critical process parameters, including pH, temperature, dyeing time, and dye concentration, on color strength (K/S). Conventional dyeing showed an inverse correlation between pH and K/S, with optimal color yield achieved at pH 3.0. Dye uptake was enhanced by increasing temperature, with maximum K/S obtained at 95°C for 30 minutes and the highest dye concentration (1.50 %). In contrast, the microwave-assisted dyeing methodology (160 W) drastically accelerated the process. Optimal conditions for microwave dyeing also favored an acidic media (pH 3.0) and showed a strong positive correlation between microwave exposure time and K/S. The microwave-assisted technique is confirmed as a rapid, energy-efficient, and effective alternative for dyeing PA6, offering significant potential for reduced processing time.