Abstract:
The objective of this research is to reduce defects generated in plastic film dry laminating process of the case study company applying the principle of Failure Mode and Effect Analysis (FMEA). The research begins with studying the production process and collecting data on the number of defects that occurred. It was found that the highest number of defects was air bubbles that occurred on the packaging. Next, the Fishbone Diagram was used to identify 16 root
causes of the defects. After that, FMEA was applied to evaluate the Risk Priority Number (RPN) of the failures. It was found that 3 failures had the same highest RPN score of 320, namely 1.) improper tension setting, 2.) inappropriate drying temperature, and 3.) inappropriate of machine running speed. Then, corrective actions were determined and implemented. including the establishment of machine operation standards, coating weight measurement machine, and web
inspection cameras. The results of the improvement showed that before the improvement in 2020, there were 380,692 meters of defects. After the improvement in 2021, the defects decreased to 76,090 meters, representing an 80.01% reduction in the number of defects. Additionally, the improvement has resulted in the number of product claims from customers decreasing from an average of 43 times per year to 8 times per year, representing a 81% reduction.