Eliminating Waste and Boosting Productivity: A Lean Management Concept in a Denim Manufacturing Firm

This paper explores the implementation of lean management principles at a leading denim manufacturer in Pakistan. Through Gemba walks, Value Stream Mapping, and simulation modelling using FlexSim, critical inefficiencies were identified. Lean tools were employed to develop targeted interventions. These methods enabled the identification of bottlenecks, particularly in the Rope Dyeing department, and uncovered systemic inefficiencies such as low labour productivity (averaging 60% in human-reliant departments) and excessive delays caused by manual material handling. Simulation results validated the potential improvements from proposed lean interventions. Key findings include significant opportunities for waste reduction, improved departmental coordination, and enhanced productivity. The study concludes that lean tools, when contextually adapted and systematically applied, can serve as powerful enablers of competitiveness and sustainability in the textile manufacturing sector. The implication of this case extends, offering a model in emerging economies seeking operational excellence and resilience in a fast-evolving global industry.