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All Journal Industrika : Jurnal Ilmiah Teknik Industri Jurnal Riset danAplikasi Teknik Industri (JRATI)
Monica Feby Santoso
Universitas PGRI Adi Buana Surabaya
Control & Systems Engineering Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Energy Engineering Environmental Science Industrial & Manufacturing Engineering

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Quality Improvement and Defect Control in Food Packaging Industry with DMAIC Approach Monica Feby Santoso; M. Nushron Ali Mukhtar
JURNAL RISET DAN APLIKASI TEKNIK INDUSTRI Vol. 4 No. 01 (2026): Volume 04 Issue 01, April 2026
Publisher : Study Program of Industrial Engineering, Udayana University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/JRATI.2026.v04.i02.p04

Abstract

Low product packaging quality in food products can negatively impact customer satisfaction and company performance. This research aims to improve the packaging quality of Shanghai Atom Peanut products using the Six Sigma method with the DMAIC approach, consisting of Define, Measure, Analyze, Improve, and Control phases. The research identified two main critical to quality factors: nonconforming product weight and poor sealing quality, which together contributed 84.3 % of total defects. Before improvement, several days showed out-of-control data, with 814 defective units out of 6480 inspected. Improvements were implemented using the FMEA method, including product standardization, sensor installation, and enhanced operator supervision. After improvement, defects were reduced to 299 units, and all data points were within control limits. The RPN decreased significantly, with D1 dropping from 336 to 175 and D2 from 294 to 100. A paired T-test confirmed the improvements were statistically significant with a P-Value of 0.001. This shows that the DMAIC approach effectively reduces defects and supports sustainable process control. For future research, evaluating the effectiveness of the Six Sigma approach across various packaging types, such as metallised packaging, carton boxes, and cans, may contribute to the development of a more efficient and market-orientated packaging process.
Quality Improvement and Defect Control in Food Packaging Industry with DMAIC Approach Monica Feby Santoso; M. Nushron Ali Mukhtar
Industrika : Jurnal Ilmiah Teknik Industri Vol. 10 No. 3 (2026): Industrika: Jurnal Ilmiah Teknik Industri
Publisher : Fakultas Teknik Universitas Tulang Bawang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37090/y559f567

Abstract

Low product packaging quality in food products can negatively impact customer satisfaction and company performance. This research aims to evaluate and improve the packaging quality of Shanghai Atom Peanut products, with a primary focus on reducing defects through the Six Sigma DMAIC approach. The main objective is to identify the root causes of packaging defects and implement measurable improvement strategies to enhance production process stability. The findings identified two CTQ factors that accounted for 84.3% of total defects: inaccurate product weight and poor sealing quality. Prior to improvement, 814 defective units were found out of 6,480 inspected. As a result, the number of defective units decreased significantly to 299, with all data points falling within control limits. The RPN also showed a substantial reduction, with D1 decreasing from 336 to 175 and D2 from 294 to 100. Statistical analysis using a paired T-test yielded a P-Value of 0.001, indicating a statistically significant improvement. The primary contribution of this research lies in its comprehensive application of all DMAIC phases through to the control stage an approach that is rarely detailed in similar studies within the food packaging industry. This research recommends future evaluations of the DMAIC methodology across various packaging types, such as metallized film, carton boxes, and cans, to support the development of more efficient and adaptability to market-oriented needs. Keywords: DMAIC, Food Industry, Packaging Defect, Quality Control, Six Sigma
Co-Authors M. Nushron Ali Mukhtar M. Nushron Ali Mukhtar