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Recycling and Degradation Pathways of Synthetic Textile Fibers such as Polyamide and Elastane
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This review examines the recycling and degradation challenges specific to polyamide (nylon) and elastane (spandex/lycra) synthetic textile fibers, highlighting how the blending of these materials with dyes and other fibers complicates enzymatic and chemical recycling processes that have shown more progress for polyester.
Synthetic textile production is a major contributor to global waste growth, a phenomenon exacerbated by population growth and increased consumption. Global fiber production is expected to reach 147 million tons by 2030. New insights into recycling solutions are being developed. For example, progress has been made in recycling fibers such as polyester, including polyethylene terephthalate (PET), through the use of enzymes that can break specific bonds and return the material to its original state. However, this process must be carried out according to the nature of the polymer in question. In addition, the mixing of different synthetic fibers and the use of dyes make it difficult to develop a complete recycling process that separates the fibers and returns them to their original raw material. This review focuses on two types of fibers widely used in the textile industry, Nylon or polyamide (PA) and elastane (Spandex or Lycra), and explores the challenges and opportunities associated with their recycling.
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Your synthetic clothes (polyester, nylon) shed tiny plastic fragments that pollute waterways and end up in our food and bodies, and traditional recycling methods often can't fully solve this problem. This review rounds up current research on using special enzymes—like ones borrowed from bacteria that naturally break down plastics—to dissolve these synthetic fabrics back into reusable building blocks, offering a more eco-friendly alternative to melting or chemically processing old clothes. While promising, the science is still developing, and researchers note we need more textile-specific studies to make this approach practical at scale.
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This review presented a multidisciplinary perspective on strategies for improving synthetic textile fiber biodegradability, examining how insights from natural fiber degradation mechanisms are inspiring new approaches to address textile waste accumulation from dominant synthetic fibers like PET.
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This review chapter examines how synthetic textile fibres—nylon, polyester, rayon, and acrylic—contribute to microplastic pollution through their entire lifecycle, from manufacturing to washing. Because these fibres shed millions of microfibre particles into waterways with every laundry cycle and persist indefinitely in the environment, the global textile industry is identified as a major, ongoing source of plastic contamination.
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