title: Investigation of Blended Fibre Filtering Materials.
abstract: Five variants of mixtures of different synthetic fibres at different area ratios were manufactured into needled nonwovens intended to be used as a filtering material for respiratory protection. Two variants were produced according to an earlier patent, and the contents of the other three was completely new. Samples of the nonwovens were tested for sodium chloride particles penetration and for breathing resistance. The results showed that one variant of a nonwoven, designated PP/PPFM, had very valuable filtering properties and that those properties were stable in time.
authors.affiliation: a Technical University of Łódź , Poland.
authors.forename: Izabella
authors.initials: I
authors.lastname: Krucińska
authors.affiliation: b Central Institute for Labour Protection , Poland.
authors.forename: Sławomir
authors.initials: S
authors.lastname: Zakrzewski
authors.affiliation: b Central Institute for Labour Protection , Poland.
authors.forename: Irena
authors.initials: I
authors.lastname: Kowalczyk
authors.affiliation: b Central Institute for Labour Protection , Poland.
authors.forename: Jadwiga
authors.initials: J
authors.lastname: Wiśniewska-Konecka