FILTRATION MEDIA

A filtration media including at least a first nonwoven fabric having at least one meltblown layer in provided. The at least one meltblown layer includes a plurality of meltblown fibers having an average diameter from about 1 to about 5 microns. Methods of making a filtration media are also provided....

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	BISHOP, Nyle, SINANGIL, Mehmet Selcuk, GARCIA, Robert, MOODY, III, NAWROTH, Rainer, CANO, Elisabeth Torres, GNOATTO, Victor
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	ACCESSORIES BRAIDING COTTON-WOOL DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS,NON-WOVEN FABRICS FIRE-FIGHTING HUMAN NECESSITIES KNITTING LACE-MAKING LAYERED PRODUCTS LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM LIFE-SAVING MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARYMATERIAL NON-WOVEN FABRICS OUTERWEAR PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL PROTECTIVE GARMENTS SEPARATION TEXTILES TRANSPORTING TRIMMINGS WADDING WEARING APPAREL
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Beschreibung
Zusammenfassung:	A filtration media including at least a first nonwoven fabric having at least one meltblown layer in provided. The at least one meltblown layer includes a plurality of meltblown fibers having an average diameter from about 1 to about 5 microns. Methods of making a filtration media are also provided. Facemasks including such filtration media are also provided. L'invention concerne un milieu de filtration comprenant au moins un premier tissu non tissé ayant au moins une couche d'extrusion-soufflage. La ou les couches obtenues par extrusion-soufflage comprennent une pluralité de fibres obtenues par extrusion-soufflage ayant un diamètre moyen d'environ 1 à environ 5 microns. L'invention concerne également des procédés de fabrication d'un milieu de filtration. L'invention concerne également des masques faciaux comprenant de tels milieux de filtration.