Reduction of Non-Productive Time in Apparel Manufacturing: A Garment Factory Case

Garment manufacturers constantly seek methods to improve efficiency and productivity. Thus, the study was undertaken to identify non-productive time (NPT) and analyze the root causes. The effect of NPT on productivity standard minute value, labor efficiency, and targets was also analyzed in an apparel manufacturing unit of Bangladesh. The study discusses various approaches to reduce NPT. These include applying time study why-why-bacause of logic (WWBLA), fishbone techniques to minimize the NPT of cutting and sewing process, and detecting the reason for NPT through root cause analysis and the process through which it can be reduced. The effectiveness of these strategies demonstrates efficiency gains and positive impacts on productivity. The productivity improved 6-10% after taking countermeasures against the NPT. The study highlights the importance of precise time measurements and workflow analysis in identifying and eliminating NPT. By implementing these methods, garment manufacturers can achieve operational excellence, minimize process waste, and enhance competitiveness.