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.
