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http://dx.doi.org/10.5764/TCF.2013.25.3.232

Functional Finishing of Nonwoven Filter for Dust-proof/Medical Masks by Corona Discharging Treatment  

Hong, Young-Ki (Department of Fashion Design and Apparel Industry, Konyang University)
Publication Information
Textile Coloration and Finishing / v.25, no.3, 2013 , pp. 232-239 More about this Journal
Abstract
In this study, 25gsm melt-blown polypropylene nonwoven for dust-proof/medical masks was finished by the corona discharging treatment. The influence of corona discharging parameters on the filtration efficiency was investigated. Several parameters such as discharging voltage, discharging speed, distance to discharging wire and configuration of discharging system had an effect on filtration efficiency, while the parameters had no effect on breathing resistance. Optimum corona discharging conditions are as follows: Wires were installed on the upper part of the nonwoven and paper pipe was installed on the lower part of the nonwoven having a distance of 5cm. The sequence of wire voltages was +60 kV, +60 kV, 0, -60 kV, and -60 kV. The discharging voltage and speed were 60 kV and 30m/min respectively. The nonwoven treated by corona discharging at the optimum condition showed a filtration efficiency of 80% or more, which is suitable for dust-proof/medical masks.
Keywords
nonwoven; corona discharging; dust-proof/medical masks; filtration efficiency; breathing resistance;
Citations & Related Records
Times Cited By KSCI : 5  (Citation Analysis)
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