MINIMIZING DEFECT USING DMAIC METHOD IN PACKAGING PRINTING PROCESS AT PT. X

Abstract

PT. X is a company engaged in manufacturing flexible film packaging. In making packaging product through several processes, namely printing, lamination, slitting and sealing processes. The problem faced by the company is the high percentage of defects in January 2023 for the entire process, which is 7.17%. Whereas the defect standard for the entire process is 5%. The printing process produces the highest defect percentage of 4.56% when compared with other processes. The six sigma method with DMAIC stages is used to improve the quality of printing process to minimize defects in the process. Start from defining the problem using pareto

diagram, SIPOC diagram, and critical to quality. Measuring current data using p- chart, DPMO, and sigma level to find out the performance level of current

conditions. Analyze the root causes of defects using why why analysis. Develop suggestions for improvement using the 5W1H method. Lastly, determine the control process for implementation of improvements. After the implementation of improvement, the defect percentage in the printing process decrease become 1.72% in March 2023.