DUST FILTER BAG

A dust filter bag is disclosed with a fibrous layer laminated to a paper layer. The fibrous layer consists of synthetic polymeric fibers and is positioned on th e clean gas side of the paper layer. To increase the strength of the dust filter bag, th e fibrous layer includes melt-bonded polymeric reg...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	SCHLOR, ULRICH, VEESER, KLAUS
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	COFFEE MILLS DOMESTIC ARTICLES OR APPLIANCES DOMESTIC WASHING OR CLEANING FURNITURE HUMAN NECESSITIES LAYERED PRODUCTS LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL SEPARATION SPICE MILLS SUCTION CLEANERS IN GENERAL TRANSPORTING
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Beschreibung
Zusammenfassung:	A dust filter bag is disclosed with a fibrous layer laminated to a paper layer. The fibrous layer consists of synthetic polymeric fibers and is positioned on th e clean gas side of the paper layer. To increase the strength of the dust filter bag, th e fibrous layer includes melt-bonded polymeric regions end is strengthened itself by t he polymeric regions and connected thereby with the paper layer. The polymeric regions have a hot melt area of 0.5 to 10% of the surface, preferably 1 to 3 %, whereby a sufficient laminate strength is achieved with minor pressure loss.