Research on Sustainable Textile Production: Waterless Dyeing of PET and Recycled PET Fabrics


  • Semiha Eren Bursa Uludağ University Textile Engineering Department Bursa/Türkiye Author
  • Aliye Akarsu Özenç Bursa Uludağ University Textile Engineering Department Bursa/Türkiye Author
  • Nejla Çeven Bursa Uludağ University Textile Engineering Department Bursa/Türkiye; Vanelli Textile Industry inc. Bursa/ Türkiye Author



supercritical carbon dioxide medium, polyester fabric, recycled polyester fabric, dyeing, sustainable


Due to water limitations and the growing global demand for raw materials, manufacturers and consumers are seeking more environmentally friendly alternatives. Polyester, a non-biodegradable fibre derived from petroleum, can be replaced with recycled polyester (r-PET), a sustainable alternative that reduces environmental impacts through the reuse of materials. The textile finishing industry, known for its high water and energy consumption, is calling for the development of low-water-consumption technologies. One innovative approach involves waterless dyeing procedures using a supercritical carbon dioxide (scCO2) medium that is particularly suitable for dyeing synthetic fibres. To assess its effectiveness, a study compared traditional water dyeing with scCO2 medium dyeing on woven fabrics made from both polyester (PET) and recycled polyester (r-PET) fibres with varying weights. After conducting tests on the dyed fabrics, the data revealed that r-PET fabrics dyed using a supercritical carbon dioxide (scCO2) medium appeared darker than fabrics dyed using traditional water dyeing techniques. Moreover, r-PET fabrics demonstrated better colour fastness. Notably, the K/Ssum values (measurement of colour intensity) of r-PET fabrics were at least as good as those of PET-based fabrics in all cases of dyeing, while the fastness values were similar for both PET and r-PET fabrics.


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How to Cite

Eren, S., Akarsu Özenç, A., & Çeven, N. (2024). Research on Sustainable Textile Production: Waterless Dyeing of PET and Recycled PET Fabrics. Tekstilec, 67, 19–32.

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