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This work aims to conduct a Life Cycle Assessment (LCA) of seamless leggings produced by a Portuguese textile company, following a “cradle-to-gate” approach. This includes all life cycle stages from raw material production to the packaging of the seamless leggings, ready to leave the company gate. Primary data for the foreground processes were obtained from the actual industrial practices of the Portuguese company, complemented by data from the ecoinvent V3.5 life cycle inventory database and literature sources, primarily for the background processes. The ReCiPe 2016 Midpoint (E) V1.02 methodology was employed to evaluate potential environmental impacts, using the SimaPro V8.5.2 LCA software. Results indicate that the production and spinning of fibers have the highest environmental impacts, mainly due to their high energy consumption. Dyeing operations are more impactful than confection operations, particularly contributing to water use and freshwater ecotoxicity. Therefore, efforts to reduce overall environmental impacts should initially focus on these life cycle stages. Switching the electricity source from the national grid mix to entirely photovoltaic energy resulted in a significant reduction in several environmental impact categories, including a 30% reduction in global warming potential.

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Life Cycle Environmental Impacts of a Seamless Leggings

  • 会议论文

  • 发表日期：

    2025年

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  • Teresa M. Mata,
  • Beatriz Mota,
  • Rúben Lapa,
  • Sofia Maia,
  • Joaquim C. G. Esteves da Silva,
  • Carlos Soares,
  • António A. Martins

摘要

This work aims to conduct a Life Cycle Assessment (LCA) of seamless leggings produced by a Portuguese textile company, following a “cradle-to-gate” approach. This includes all life cycle stages from raw material production to the packaging of the seamless leggings, ready to leave the company gate. Primary data for the foreground processes were obtained from the actual industrial practices of the Portuguese company, complemented by data from the ecoinvent V3.5 life cycle inventory database and literature sources, primarily for the background processes. The ReCiPe 2016 Midpoint (E) V1.02 methodology was employed to evaluate potential environmental impacts, using the SimaPro V8.5.2 LCA software. Results indicate that the production and spinning of fibers have the highest environmental impacts, mainly due to their high energy consumption. Dyeing operations are more impactful than confection operations, particularly contributing to water use and freshwater ecotoxicity. Therefore, efforts to reduce overall environmental impacts should initially focus on these life cycle stages. Switching the electricity source from the national grid mix to entirely photovoltaic energy resulted in a significant reduction in several environmental impact categories, including a 30% reduction in global warming potential.