METHOD FOR THE PRODUCTION OF A FILTER LAYER, AND FILTER LAYER ESPECIALLY FOR A DUST FILTER BAG OF A VACUUM CLEANER

METHOD FOR THE PRODUCTION OF A FILTER LAYER, AND FILTER LAYER ESPECIALLY FOR A DUST FILTER BAG OF A VACUUM CLEANER

The invention relates to a method for producing a filter layer (1) featuring integrated coarse and fine filtering properties, especially for a dust filter bag of a vacuum cleaner. According to said method, first a compact fibrous web (2) made of fibers (2') such as synthetic fibers, viscose fib...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: RODEMANN, THOMAS, POCH, HEIKE, SINSEL, REINHOLD, HLAWATSCHEK, HUBERT, SCHLEICHER, NORBERT
Format: Patent
Sprache:eng ; fre ; ger
Schlagworte:
BRAIDING
COTTON-WOOL
FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS,NON-WOVEN FABRICS
KNITTING
LACE-MAKING
MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARYMATERIAL
NON-WOVEN FABRICS
PERFORMING OPERATIONS
PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
SEPARATION
TEXTILES
TRANSPORTING
TRIMMINGS
WADDING
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Beschreibung
Zusammenfassung:The invention relates to a method for producing a filter layer (1) featuring integrated coarse and fine filtering properties, especially for a dust filter bag of a vacuum cleaner. According to said method, first a compact fibrous web (2) made of fibers (2') such as synthetic fibers, viscose fibers, viscose staple fibers, or natural fibers is produced, whereupon melt-blown fibers (3) are applied to/introduced into the fibrous web (2) and are compacted with the fibrous web (2), the melt-blown fibers (3) being incorporated into the fibrous web (2) in a fragment-like manner and preferably at different depths.