Cigarette filter wrapper paper, cigarette filter, and...

Details Cigarette filter wrapper paper, cigarette filter, and... Cigarette filter wrapper paper, cigarette filter, and...

A - Human Necessities

24

D

A24D 3/04 (2006.01) A24D 1/02 (2006.01)

Patent

CA 2331822

Cigarette filter roll paper which is provided with a paper layer having a first surface and a second surface and which shows a first overlapping air permeability when measured with porous chip paper overlapped on the first surface and a second overlapping air permeability when measured with porous chip paper overlapped on the second surface, the first overlapping air permeability being higher than the second overlapping air permeability.

L'invention concerne un rouleau de papier pour filtre de cigarette présentant une couche de papier ayant des première et seconde surfaces. Lorsque l'on pose le papier à copeaux poreux sur la première surface on effectue une première mesure de la perméabilité à l'air. Lorsque l'on pose le papier à copeaux poreux sur la seconde surface on effectue une seconde mesure de la perméabilité de l'air. La première valeur mesurée est supérieure à la seconde valeur mesurée.

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