Smoking article with improved extinguishing characteristics

Details Smoking article with improved extinguishing characteristics Smoking article with improved extinguishing characteristics

A - Human Necessities

24

C

A24C 5/00 (2006.01) A24C 5/40 (2006.01) A24C 5/46 (2006.01) A24D 1/02 (2006.01) A24D 1/10 (2006.01) D21H 17/66 (2006.01) D21H 23/22 (2006.01)

Patent

CA 2709427

A smoking article comprises a tobacco rod and a wrapper, wherein the wrapper includes at least one zone treated with an inorganic salt providing reduced ignition propensity. Preferably, the porosity of the wrapper in the treated zones is larger than 10 CU. Suitable inorganic salts are, e.g., magnesium chloride, aluminium sulfate, alum, sodium tetraborate, the hydrated forms of these compounds, sodium chloride, or mixtures thereof.

La présente invention concerne un article à fumer comprenant un boudin de tabac et une cape, la cape comportant au moins une zone traitée avec un sel inorganique réduisant sa propension à l'ignition. De préférence, la porosité de la cape dans les zones traitées est supérieure à 10 CU. Des sels inorganiques adaptés sont, par exemple, le chlorure de magnésium, le sulfate d'aluminium, l'alun, le tétraborate de sodium, les formes hydratées de ces composés, le chlorure de sodium, ou leurs mélanges.

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