Abstract:
Sewing process is one of the most important stages in labour intensive ready-made
clothing enterprises. Quality faults occurring during this process adversely affect the
product quality and product efficiency, and also increase the production cost. The aim of
this study is to investigate whether the knitwear production process is under control in a
knitwear production enterprise and to detect the processes with highest rates of sewing
faults in sewing department and finally to make suggestions for improving the quality
control. Among the Statistical Process Control methods; control list, product control chart
were used in the study. “product control chart” was used to test whether the production
process is controlled in the enterprise. Furthermore, the statistical methods were
employed to determine the issues that need to be done in the improvement efforts and to
detect the relations between the process groups supposedly effective on faults occurring
in knitwear production and the amount of faults. Also, the processes with highest
amounts of sewing faults and the effects of these processes on fault rates were
investigated. As a result, it was concluded that the production process was statistically
not under control in the ready-made clothing enterprise. In addition, this study
demonstrated that the investigation of each process group by drawing their product
control charts would make significant contributions to foresee the results and prepare
more effective the improvement plans.
