Nonwoven Fabrics

Albrecht, Wilhelm; Fuchs, Hilmar; Kittelmann, Walter

doi:10.1002/3527603344

Cited by 34 publications

(2 citation statements)

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“…Economic advantage has driven the rapid development of non-woven fabrics. There is a large body of literature available for more in-depth discussions of the general non-woven processes and products (15)(16)(17)(18), but basically, they should be barrier resistant as well as comfortable to wear. Dental non-woven gowns should resist the penetration of liquids and, at the same time, be sterile, breathable, flexible, and inexpensive (19).…”

Section: Discussionmentioning

confidence: 99%

Are Non-woven Gowns Safe for Dental Professionals? A Preclinical Double-Blind Study

et al. 2020

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With the advent of the coronavirus disease 2019 (COVID-19) pandemic, the risk of dental professional's infection increases exponentially due to aerosol-generating procedures. The protective performance of dental professional gown fabrics is a major challenge against microorganisms and aerosols. Globally, health care workers wear gowns manufactured with non-woven fabrics. However, these professionals may have a false greater sense of protection based on the greater weight of the gown's fabric. This study evaluated whether aerosol generated by dental procedures has the potential to pass through three different non-woven weights (40, 60, and 80 g/m 2). Single and folded formats of each weight were analyzed. The positions of the mannequin and the high-speed handpiece were standardized. The non-woven samples were placed over a sheet of sulfite paper and fixed on a marked position of a standardized smooth surface, 10 cm away from the end of the mannequin's head, simulating the dental professional body. For better visualization, the water used in the equipment was tinted with water-soluble red artificial dye. Blind to the nature of the groups, one researcher started the 5 uninterrupted min of aerosol production. The sheets were randomized coded, so that the samples could not be identified by the evaluator. Another researcher, blind to the tests, scanned all sheets and the images were analyzed by ImageJ software. The groups showed significant differences (p < 0.01). Except for the folded 80 g/m 2 , all groups presented pigmented mean areas ranging from 16.18% (60 g/m 2 folded) to 35.68% (40 g/m 2 single), suggesting that the one-layer non-woven samples were not effective as barriers for 5 uninterrupted min of aerosol spray. Dental procedures exceeding the studied time may provide different results with the non-woven 80 g/m 2 folded. Dental health workers, who are exposed daily to aerosol-generating procedures, should be aware of the exact specification and performance of the fabrics used in the manufacturing of their disposable garments. If the use of an impermeable surgical gown is not possible during aerosol-generating procedures, a plastic garment associated with a disposable gown should be worn, as recommended by the World Health Organization.

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Section: Discussionmentioning

confidence: 99%

Are Non-woven Gowns Safe for Dental Professionals? A Preclinical Double-Blind Study

et al. 2020

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“…Separators from the melt-blown process have improved homogeneity but low mechanical strength. More detailed information about nonwoven processing is summarized in a book . Currently the preferred technique for producing nonwoven separators is the wet-laid process combined with thermal bonding.…”

Section: Introductionmentioning

confidence: 99%

Alkaline Battery Separators with High Electrolyte Absorption from Forced Assembly Coextruded Composite Tapes

Wang

Lin

Viswanath

et al. 2019

Ind. Eng. Chem. Res.

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In this work, two-component fibrous separators with high electrolyte absorption were fabricated by the delamination of oriented polymer tape which was produced using a unique coextrusion and multiplication process. Two different separators were created from polypropylene/high-density polyethylene (PP/HDPE) and polypropylene/polyamide 6 (PP/PA6) by this process. The separators have a pore size of 10 μm, high porosity, and high surface area. The electrolyte absorption (KOH uptake) of PP/HDPE separators and PP/PA6 separators are almost 3 times higher than that of commercial separators. The battery performance of the PP/HDPE separators and the PP/PA6 separators were evaluated in a coin cell battery configuration. The charge−discharge efficiency of coin cells made from the PP/PA6 separator is found to be 6% higher than the commercial separators.

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Disposable Filter Devices

Loewe¹,

Dixit²

2010

Single‐Use Technology in Biopharmaceutical Manufacture

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Nonwoven Fabrics

Cited by 34 publications

References 0 publications

Are Non-woven Gowns Safe for Dental Professionals? A Preclinical Double-Blind Study

Are Non-woven Gowns Safe for Dental Professionals? A Preclinical Double-Blind Study

Alkaline Battery Separators with High Electrolyte Absorption from Forced Assembly Coextruded Composite Tapes

Disposable Filter Devices

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