"REPIRADORES MOLDADOS E PROCESSOS PARA FABRICAÇÃO DE RESPIRADORES MOLDADOS"

A molded respirator and method of making are disclosed, wherein the molded respirator is made from a porous nonwoven web containing meltblown fibers and staple fibers. The meltblown fibers may be present as a bimodal mixture of microfibers and mesofibers, and comprise an intermingled mixture with st...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: JAMES E. SPRINGETT, SEYED A. ANGADJIVAND, JOHN M. BRANDNER
Format: Patent
Sprache:por
Schlagworte:
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Beschreibung
Zusammenfassung:A molded respirator and method of making are disclosed, wherein the molded respirator is made from a porous nonwoven web containing meltblown fibers and staple fibers. The meltblown fibers may be present as a bimodal mixture of microfibers and mesofibers, and comprise an intermingled mixture with staple fibers further intermingled therein. The molded respirator may also contain at least one secondary filtration layer.