Cloth Face Coverings: Effect of Decontamination Method on Fabric Performance

Goodge, Katarina; Frey, Margaret W.

doi:10.1177/24723444221132051

Cited by 2 publications

(2 citation statements)

References 18 publications

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“…Fabric for the experimental face masks were nominated based on their air permeability (Goodge & Frey, 2021). Various sequences of fabric layers were tested for composite air permeability following ASTM D737.…”

Section: Experimental Face Masksmentioning

confidence: 99%

Cloth face mask fit and function for children part two: Material Selection

et al. 2022

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The second component of this three-paper series studying cloth face masks for children ages 4 to 6 years old concentrates on optimizing aerosol capture and air permeability through fabric selection. Material choices were evaluated in two modes: Flat Filter (FF) and Head Form (HF). FF isolates material factors while HF simulates the performance of the constructed masks on a 3D printed child head form. In FF mode, higher filtration efficiency correlated to lower air permeability in both reusable commercial and experimental face masks regardless of fiber contents, fabric structures, and number of layers. Our prototype face mask developed in design exploration successfully captured 37 ± 12% of 0.3 μm, 87 ± 3% of 0.5 μm, and 87 ± 2% of 1.0 μm particles while maintaining good air permeability, moisture capture, and aerosolized salt capture in HF mode. Sealing masks to minimize outward leakage reduced particle capture up to 64%. Particle leakage data captured at the eye level of the head form illuminated the synergy between mask design, material choice, and fit.

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Section: Experimental Face Masksmentioning

confidence: 99%

Cloth face mask fit and function for children part two: Material Selection

et al. 2022

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“…Creating a CNF/PVA water-soluble dispersion that can be sprayed on commercial or homemade masks may make them eligible for Food and Drug Administration (FDA) medical mask or NIOSH N95 respirator testing standards. 23 This project aims to compare the CNF/ PVA spray deposition on various textiles to NIOSH N95 mask standards by examining the spray's antibacterial properties following the biomimic concept of dragonfly wings. In previous publications, 24,25 it was discovered that nanopillars on the surface of insect wings contribute to the bactericidal properties by individual cell penetration.…”

Section: Introductionmentioning

confidence: 99%

Cellulose Nanofiber as Mask/Personal Protective Equipment Surface Agent for Enhanced Anti-Bacterial Performance

Jackson,

Chen

2024

AATCC Journal of Research

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The utilization of face-covering masks as an extended form of personal protective equipment has led to exponential waste measures during the COVID-19 pandemic, with estimations of up to 7200 tons of medical-type waste daily. A primary cause of this waste is surgical layered disposable masks that are constructed by melt-blown nonwovens usually made of non-biodegradable thermoplastic polymers like polypropylene. To increase widespread sustainable options to the public, commercialized or do-it-yourself-based fabric masks serve as a solution, but their resistance to harmful molecules is less than that of the medical-grade masks due to the fabric structure that leaves space for penetration. This project examines a water-soluble dispersion composed of cellulose nanofiber and polyvinyl alcohol, as a spray agent capable of treating the mask fabric surface to promote protection and sustainability against harmful aerosol particles. Cellulose nanofiber spray is also low-cost and biocompatible and could allow multi-use through home laundering. Polyvinyl alcohol was chosen as the water-soluble bonding system and polymer matrix to effectively adhere cellulose nanofiber onto the mask surface. This project follows the biomimic concept of dragonfly wings having uneven nanopillar surfaces to trap and rip bacterial membranes, as the spray decreases the water droplet contact angle on fabric surface, resulting in an increase in adhesion for incident bacteria and/or viruses.

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Cloth Face Coverings: Effect of Decontamination Method on Fabric Performance

Cited by 2 publications

References 18 publications

Cloth face mask fit and function for children part two: Material Selection

Cloth face mask fit and function for children part two: Material Selection

Cellulose Nanofiber as Mask/Personal Protective Equipment Surface Agent for Enhanced Anti-Bacterial Performance

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