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Optimizing Laundry for Sustainability: Balancing Washing Efficiency and Environmental Impact in the Clothing Use Phase

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  • Tian Xia

    (Univ. Lille, ENSAIT, ULR 2461—GEMTEX—Génie et Matériaux Textiles, F-59000 Lille, France)

  • Romain Benkirane

    (Univ. Lille, ENSAIT, ULR 2461—GEMTEX—Génie et Matériaux Textiles, F-59000 Lille, France)

  • Anne Perwuelz

    (Univ. Lille, ENSAIT, ULR 2461—GEMTEX—Génie et Matériaux Textiles, F-59000 Lille, France)

Abstract

The use phase of clothing contributes significantly to the overall environmental impacts due to clothing care practices. Decreasing environmental impact while maintaining washing performance in the use phase can be an effective strategy for sustainability and circularity in the textile value chain. However, existing studies on the environmental impacts of use phase usually consider limited washing conditions and neglect their impacts on washing efficiency. This study proposes a research framework that integrates the Response Surface Methodology (RSM) and Life Cycle Assessment (LCA) methodology to optimize washing parameters for better washing efficiency with less environmental impact in the clothing use phase. A series of laundry experiments were conducted to simulate household laundry, and an environmental impact assessment was conducted based on the experimental data. The optimized washing parameters were explored under eight impact categories and in terms of washing efficiency, and comparative analyses were conducted between three different washing scenarios. The results indicated that input load is the most significant factor influencing both washing efficiency and environmental impact, but with a negative correlation. The optimized washing conditions provided effective trade-offs, demonstrating notable environmental benefits through the scenario study. In the daily washing scenario with an expectation for a middle level of washing efficiency, using the optimized washing conditions can reduce the environmental impact by 80% on average compared to the high-washing-efficiency-oriented washing process and 60% on average compared to the low-environmental-impact-oriented washing process. However, for high washing efficiency demand, optimized washing conditions are less competitive due to increased washing time and detergent use. The results emphasized the importance of choosing appropriate washing parameters according to the demand for washing efficiency. Consistent environmental improvements can be achieved by changing consumer washing habits.

Suggested Citation

  • Tian Xia & Romain Benkirane & Anne Perwuelz, 2025. "Optimizing Laundry for Sustainability: Balancing Washing Efficiency and Environmental Impact in the Clothing Use Phase," Sustainability, MDPI, vol. 17(18), pages 1-20, September.
    • Handle: RePEc:gam:jsusta:v:17:y:2025:i:18:p:8411-:d:1753291
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    References listed on IDEAS

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    1. Jasiūnas, Žygimantas & Julião, Tiago & Cecílio, José & Carrilho da Graça, Guilherme & Ferreira, Pedro M., 2025. "A soft sensor to assess the energy performance of laundry washing machines," Applied Energy, Elsevier, vol. 383(C).
    2. Ingun Grimstad Klepp & Kirsi Laitala & Stephen Wiedemann, 2020. "Clothing Lifespans: What Should Be Measured and How," Sustainability, MDPI, vol. 12(15), pages 1-21, August.
    3. Baydar, G. & Ciliz, N. & Mammadov, A., 2015. "Life cycle assessment of cotton textile products in Turkey," Resources, Conservation & Recycling, Elsevier, vol. 104(PA), pages 213-223.
    4. Kirsi Laitala & Ingun Grimstad Klepp & Beverley Henry, 2018. "Does Use Matter? Comparison of Environmental Impacts of Clothing Based on Fiber Type," Sustainability, MDPI, vol. 10(7), pages 1-25, July.
    5. Mélanie Schmutz & Roland Hischier & Claudia Som, 2021. "Factors Allowing Users to Influence the Environmental Performance of Their T-Shirt," Sustainability, MDPI, vol. 13(5), pages 1-16, February.
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