Ismadi, Soesanto, Tjetjep Rohendi Rohidi, Syakir, Bandi Sobandi, Moh. Fathurrahman, Dedy Sartono
This study uses different fixation materials to investigate the colour fastness of natural dyes derived from teak wood extract (Tectona grandis) on traditional woven yarns. Four fixation agents—aluminium sulphate (Al₂(SO₄)₃):sodium bicarbonate (NaHCO₃):calcium carbonate (CaCO₃):and ferrous sulphate (FeSO₄)—were tested at different fixation stages (initial, middle, and final). Colour fastness was assessed through washing and sunlight exposure tests, with ANOVA used to analyse statistical significance. The results indicate that aluminium sulphate exhibited the highest initial colour retention (52.36%):but its effectiveness declined significantly over time. In contrast, sodium bicarbonate maintained more stable colour retention in later stages, making it a promising alternative for long-term durability. The findings highlight the critical role of fixation selection in optimising natural dyeing processes and suggest practical applications for large-scale sustainable textile production. Future research should explore hybrid fixation methods and environmentally friendly alternatives to enhance colour stability. © 2025, idd3. All rights reserved.
Universitas Negeri Semarang, Sekaran, Gn. Pati, Central Java, Semarang, 50229, Indonesia; Universitas Dian Nuswantoro, Jl. Imam Bonjol 207, Central Java, Semarang, 50131, Indonesia; Universitas Pendidikan Indonesia, Jl. Dr. Setiabudi 229, West Java, Bandung, 40154, Indonesia; Universitas Negeri Yogyakarta, Jl. Colombo 1 Karang Malang, Caturtunggal, Depok, Sleman, Daerah Istimewa Yogyakarta, Yogyakarta, 55281, Indonesia
