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A versatile self-cleaning fabric coating as a detergent-free laundry product
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Researchers developed a polyelectrolyte multilayer fabric coating that enables effective stain and microbial removal through simple water rinsing without detergent, reducing water, electricity, and time consumption by approximately 82% and eliminating microplastic-laden wastewater discharge from laundry.
Laundry is an everyday necessity in modern life, yet its role in converting vast amounts of clean household water to wastewater remains underappreciated primarily due to the excessive reliance on detergents to achieve effective cleanliness and hygiene. To tackle this enduring issue particularly amid mounting global concerns over water scarcity, here a self-cleaning polyelectrolyte multilayer coating was developed by alternately spraying poly(diallyldimethylammonium chloride) (PDADMAC) and poly(vinylsulfonic acid) (PVS) onto various fabrics-including both hydrophobic synthetic fibers and hydrophilic cotton textiles-forming an ultra-high dense sulfonate-derived complete hydration layer that enables the effective removal of food stains, oily residues, bacteria, and fungi through simple rinsing with tap water. This innovation transforms conventional detergent-assisted, multi-step laundry practices - typically requiring 1 washing cycles and 4 rinsing cycles - to a single detergent-free rinsing cycle with enhanced cleanliness and hygiene. As a result, the overall consumption of water, electricity, and time is reduced by approximately 82%, while the discharge of detergent- and microplastic-laden wastewater is entirely eliminated. This study presents an approach for sustainable textile care that has the potential to advance environmentally responsible and resource-efficient hygiene technologies in everyday life.
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Self-cleaning fabric reduces laundry load
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Researchers developed a spray-on polyelectrolyte multilayer coating for fabrics that prevents stains from adhering rather than removing them after the fact, cutting laundering water, energy, and time by over 80% while also binding microplastics and reducing their release into wastewater.
Eco-Sustainable Finishing Treatment of Polyamide Fabrics to Reduce the Release of Microplastics During Washing Processes
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Researchers investigated eco-sustainable surface treatments for polyamide (nylon) fabrics to reduce the shedding of synthetic microplastic fibres during household washing, aiming to cut a major source of marine microplastic pollution at its origin.
Identification, removal of microplastics and surfactants from laundry wastewater using electrocoagulation method
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Laundry wastewater from a 2 kg synthetic fabric load released up to 114,300 microfibers per wash, and an electrocoagulation treatment removed roughly 98% of those fibers along with surfactants and organic load in about 25 minutes at a cost of US$0.53 per cubic meter. The results highlight both how significant laundry is as a microplastic source and that electrocoagulation is a cost-effective option for treating it before wastewater reaches natural waterways.
Low-friction coatings reduce microplastic release from textiles
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"A two-layer PDMS coating for nylon fabrics has been shown to reduce microplastic fiber shedding during laundering by up to 93%, with the protective effect persisting through at least nine wash cycles. Preventing fiber release at the source rather than trying to capture particles downstream represents one of the most efficient strategies for curbing microplastic contamination of aquatic environments and the organisms living in them."
Liquidlike, Low‐Friction Polymer Brushes for Microfibre Release Prevention from Textiles
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Researchers developed a polymer brush coating strategy that practically eliminates microfiber release from synthetic textiles during washing. The study demonstrates that applying liquid-like, low-friction coatings to fibers significantly reduces the mechanical abrasion that causes millions of microplastic fibers to shed into wastewater.
Research digests by email
When a large batch of papers lands in the Atlas, we read through it and send a short write-up of what stood out.