REDUCING WASTE IN THE LIQUID DETERGENT PACKAGING PROCESS BY APPLYING THE SIX SIGMA CONCEPT Research Aticle

Abstract

The study of the production process of a brand of the Liquid Detergent industry with a production plant in Chonburi province. It was found that the production process increased purchase orders, But the performance has decreased, because it found that the waste exceeds the standard set the loss that occurs is classified as a type of waste. This research aims to analyze the causes and reduce wrinkled waste at the top-seal of the process of closing the top-seal of the liquid detergent packaging bag and a comparative study of the number of defects before and after improved to calculate the level of variation in the production process with a Six Sigma level. There was collected waste data during the top-sealing process of washing detergent packaging for 5 types There are 42,310 pieces of top-seal ribs, representing 40.97 percent of the total waste. Therefore, applied DMAIC principles to solve the problem by using Cause-and-Effect Diagrams to analyze the causes of problems and perform an in-depth analysis by a risk assessment of production factors affecting the root cause of the problem. It was found that the highest score was no temperature-setting standard. Therefore, an experiment was performed to adjust the temperature value three temperature levels were set namely 198, 195, and 190 Degrees Celsius, respectively. The experimental results showed that the temperature value of 190 degrees Celsius was the most suitable for production. As a result, the process reliability level before improvement was 96.39 percent increased to 99.98 percent and the sigma level before improvement was 3.25 increased to 5.25, Which can be explained that, If the sigma level is higher, it’s like making fewer mistakes.