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A review on microplastic emission from textile materials and its reduction techniques
Summary
Researchers reviewed how synthetic textile fibers — tiny plastic threads released from clothes during washing, drying, and wearing — are a major source of microplastic pollution, entering waterways and food chains through seafood, salt, and drinking water. They identify fabric type, detergent, and washing conditions as key factors affecting fiber release, and propose textile finishing and regulatory strategies to reduce emissions.
The production and consumption of textiles is continuously increasing due to the growth of population and fast fashion. Fiber fragments (1 µm–5 mm) released from garments and home textiles during washing, drying, and wearing are considered a new source of environmental pollution and health hazard. Fiber fragments can be ingested by aquatic animals and substantially threaten their metabolic activities. Small fiber fragments can also enter our food chain by the consumption of sea creatures, sea table salt, and drinking water. In this paper, we overview various important parameters on the release of fiber fragments from garments, and home textiles including the type of fabric, weaving/knitting structure, detergent type and concentration, temperature, pH, spin-speed, and duration of the washing and drying processes. The influence of various mechanical and chemical textile finishes on the release of fiber fragments is explained. Any process that reduces the strength of fibers and their interactions including sanding, brushing, bleaching can potentially increase the release of fiber fragments in consecutive wet processes. We highlight some of the most important environmental regulations on the release of microplastics and fiber fragments to the environment and provide a series of recommendations to reduce the impact.
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