Particle filter in the form of a pleated nonwoven layer

Details Particle filter in the form of a pleated nonwoven layer Particle filter in the form of a pleated nonwoven layer

B - Operations, Transporting

01

D

B01D 46/52 (2006.01) B01D 39/08 (2006.01) B01D 39/16 (2006.01) D04H 3/02 (2006.01)

Patent

CA 2260066

The invention relates to a filter arrangement comprising a pleated nonwoven layer for use as a motor vehicle interior filter. The nonwoven layer is in the form of a single-layer, self-supporting micro-spunbonded fabric, the grammage thereof being between 70 g/m2 and 200 g/m2, preferably between 110 g/m2 and 150 g/m2, the thickness thereof being between 0.7 and 1.5 mm, and the fibre thickness being between 2 and 20 µm with an average fibre thickness of 3 to 5 µm.

L'invention concerne un ensemble filtre comprenant une couche de non-tissé plissé, destiné à être utilisé comme filtre pour l'espace intérieur d'un véhicule automobile. Cette couche de non-tissé se présente sous la forme d'une seule couche de tissu micro-spunbonded autoportante, dont le grammage est compris entre 70 g/m<2> et 200 g/m<2>, de préférence entre 110 g/m<2> et 150 g/m<2>, dont l'épaisseur est comprise entre 0,7 et 1,5 mm, et dont l'épaisseur des fibres est comprise entre 2 et 20 mu m, l'épaisseur moyenne des fibres allant de 3 à 5 mu m.

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