QUALITY CONTROL ANALYSIS OF LEATHER BAG PRODUCT USING SIX SIGMA METHOD AT CV CHIDEHAFU
Keywords:
Six Sigma Quality Control, DMAIC, DPMOAbstract
The increasing competitiveness in the manufacturing industry drives companies to continuously improve efficiency and product quality to meet customer needs and expectations. In the leather-based craft industry, product quality becomes a key benchmark that directly influences marketability and customer loyalty. CV Chidehafu Denpasar, a producer of leather bags, faces challenges in reducing product defects that could impact production costs and brand image. Based on production documentation from January 2024 to April 2025, the defect rate was found to exceed the company's tolerance threshold of 1%. This study employs the Six Sigma method using the DMAIC (Define, Measure, Analyze, Improve, Control) approach to design a more effective quality control plan. The analysis reveals that out of 4,800 total units produced, 717 were defective, resulting in a DPMO value of 29,880 or equivalent to a 3.3 sigma level. The most common defects include dirty leather, scratched surfaces, and loose stitching. Through Pareto and FMEA analysis, several improvement actions were proposed, focusing on raw material handling and operator skill enhancement. The implementation of Six Sigma-based quality control is expected to significantly reduce product defects and enhance the overall efficiency and quality of leather bag production at CV Chidehafu Denpasar.
Downloads
References
Andiyanto et al. (2017). Penerapan Metode FMEA (Failure Mode and Effect Analysis) untuk Kuantifikasi dan Pencegahan Resiko akibat Terjadinya Lean Waste. Jurnal Online Poros Teknik Mesin, 79 (1).
Antony, J., Sony, M., Dempsey, M., Brennan, A., Farrington, T., Cudney, E.A., (2019). An Evaluation into the Limitations and Emerging Trends of Six Sigma: an Empirical Study. TQM J. 31, pp. 205–221.
Assauri, Sofjan. (2008). Manajemen Produksi dan Operasi (Edisi Empat). Jakarta: Lembaga Penerbit Fakultas Ekonomi Universitas Indonesia.
Budiartami, N.K., Wijaya, I Wayan K. (2019). Analisis Pengendalian Proses Produksi Untuk Meningkatkan Kualitas Produk Pada CV Cok Konfeksi di Denpasar. Jurnal Manajemen dan Bisnis Equilibrium, 5 (2).
Erturk et al. (2016). The Effects of Six Sigma Approach on Business Performance: A study of White Goods (home appliances) Sector in Turkey. Procedia –Social and Behavioral Sciences, 229, pp. 444-452.
Freitas et al. (2017). Impacts of Lean Six Sigma over Organizational Sustainability: A Survey Study. Journal of Cleaner Production, 156, pp. 262-275.
Gasperz, V. (2002). Pedoman Implementasi Six Sigma. Jakarta: Gramedia.
Ghivaris, et al. (2015). Usulan Perbaikan Kualitas Proses Produksi Rudder Tiller di PT Pindad Bandung Menggunakan FMEA dan FTA. Jurnal Online Institut Teknologi Nasional, 3 (4).
Goetsch, D. L., & Davis, S. (2010). Quality Management For Organizational Excellence: Introduction to Total Quality. NJ: Printice Hall International, Inc.
Gygi C., Neil DeCarlo, B. W. (2016). Six Sigma for Dummies. Wiley Publishing Inc.
Hariastuti, Ni Luh Putu. (2015). Analisis Pengendalian Mutu Produk Guna Meminimalisasi Produk Cacat. Jurnal Seminar Nasional IENACO-2015. ISSN:2337-4349 : 286 – 275
Heizer, Jay dan Barry Render. (2016), Operations Management (Manajemen Operasi), ed.12, Penerjemah: Dwi anoegrah wati S dan Indra Almahdy, Salemba empat, Jakarta.
Masduqi, Ali dan Arnisa Nastiti. (2023). Pengurangan Risiko Kegagalan Kualitas Produksi Air Minum PDAM Tirta Dhaha Kota Kediri Menggunakan Failure Mode and Effect Analysis (FMEA). Jurnal Teknik ITS, 12 (1).
Mitra, A. (2012). Fundamentals of Quality Control and Improvement: Third Edition. Wiley Publishing Inc.
Nurkholiq, A., Oyon Saryono, Iwan Setiawan. (2019). Analisis Pengendalian Kualitas (Quality Control) dalam Meningkatkan Kualitas Produk. Junal Ilmu Manajemen Universitas Galuh Ciamis, 6 (2).
Pande Pete, L. H. (2001). What is Six Sigma?.McGraw-Hill.
Parast, Mahour Melat. (2010). The Effect of Six Sigma Projects on Innovation and Firm Performance. International Journal of Project Management, 29, pp. 45-55.
Patel, S. (2016). The Tactical Guide to Six Sigma. CRC Press.
Pereira et al. (2019). Using Six Sigma to Analyse Customer Satisfaction at the Product Design and Development Stage. Procedia Manufacturing, 38, pp. 1608-1614.
Prawirosentono, Suyadi. (2007). Filosofi Baru tentang Manajemen Mutu Terpadu Abad 21 “Kiat Membangun Bisnis Kompetitif”. Jakarta: Bumi Aksara.
Rachman et al. (2016). Perbaikan Kualitas Produk Ubin Semen Menggunakan Metode Failure Mode and Effect Analysis dan Failure Tree Analysis di Institusi Keramik. Jurnal Online Institut Teknologi Nasional, 4 (2).
Saripudin, A.A., Satar, M. (2014). Analisa Pengendalian Kualitas Produk Bracket Electric Air Bus 380 dengan Metode Six Sigma pada Area Profile Press Forming di PT X. INDEPT, 4 (3).
Singh, M., Rathi, R., (2019). A Structured Review of Lean Six Sigma in Various Industrial Sectors. Int. J. Lean Six Sigma 10, pp. 622–664.
Stamatis, D.H. (2019). Risk Management Using Failure Mode and Effect Analysis. ASQ Quality Press.
Suhartini. (2020). Penerapan Metode Statistical Process Control (SPC) dalam Mengidentifikasi Faktor Penyebab Utama Kecacatan pada Proses Produksi Produk ABC. Jurnal Ilmiah Teknologi dan Rekayasa, 25 (1).
Sulaeman. (2015). Analisa Pengendalian Kualitas untuk Mengurangi Produk Cacat Spedometer Mobil dengan Menggunakan Metode QCC di PT INS. Jurnal PASTI, VIII (1), hal. 71-95.
Titmarsh et al. (2020). Contributions of Lean Six Sigma to Sustainable Manufacturing Requirements: nn Industry 4.0 Perspective. Procedia CIRP, 90, pp. 589-593.
Wisnubroto dkk. (2018). Pengendalian Kualitas Terhadap Produk Cacat Menggunakan Metode Seven Tool Guna Meningkatkan Produktivitas di CV Madani Plast Solo. Industrial Engineering Journal of The University of Sarjanawiyata Tamansiwa, 2 (2).
Yamit, Zulian. (2013). Manajemen Kualitas Produk & Jasa. Jakarta :Ekosinia.
Yuliasih, Ni Kadek. (2014). Analisis Pengendalian Kualitas Produk pada Perusahaan Garmen Wana Sari Tahun 2013. E-journal Undiksha, 4(1) :1-12
