IMPROVEMENT OF WASTE REDUCTION IN THE JEANS BLEACHING PRODUCTION PROCESS IN THE ABC FACTORY

Grerkiat  Korbuakaew; Somkiat  Korbuakaew; Sasiwimol  Kaewketsri; Waraporn  Leekudloh

Grerkiat Korbuakaew Faculty of Industrial Technology, Suan Sunandha Rajabhat University, Bangkog, Thailand
Somkiat Korbuakaew Faculty of Industrial Technology, Suan Sunandha Rajabhat University, Bangkog, Thailand
Sasiwimol Kaewketsri Faculty of Industrial Technology, Suan Sunandha Rajabhat University, Bangkog, Thailand
Waraporn Leekudloh Faculty of Industrial Technology, Suan Sunandha Rajabhat University, Bangkog, Thailand

Keywords: 7QC Tools, process improvement, 7 Wastes of Lean, ECRS

Abstract

This research aims to 1) Study the causes of waste in the jeans bleaching process and 2) Reduce waste in the jeans bleaching department. The sample was thirty factory employees in this research. 7 quality control tools (7QC Tools) were used for all and using a fishbone diagram. Bar chart was used to sort the cause of the problem and using the seven waste theories and ECRS to reduce waste.
The research results showed that the cause of waste in the production process was the capability of the newly reloaded employee's lacking of work experience. For the solution to the problem is proposed by collecting waste data from the pattern of jeans bleaching process without the pattern as in the sample. The data was collected for 7 days before the improvement. It was found that there were 2,201 pieces of defective jeans pattern, was to 0.70 percent of all. for the new employee in jeans bleaching department in order to reduce waste from jeans patterns with no sample was more efficient, data were collected after 7 days of improvement, result in 1,718 pieces was to 0.53 percent of all. The amount of waste in the production reduce was 483 pieces/week.