Paper wrapper for reduction of cigarette burn rate

Details Paper wrapper for reduction of cigarette burn rate Paper wrapper for reduction of cigarette burn rate

A - Human Necessities

24

D

A24D 1/02 (2006.01) A24D 1/00 (2006.01) D21H 17/67 (2006.01) D21H 27/00 (2006.01)

Patent

CA 2351096

A method of reducing the burn rate of a smoking article is provided. Specifically, the burn rate is reduced by incorporating into a paper wrapper of the smoking article a filler (e.g., precipitated calcium carbonate) having a median particle size greater than about 2.5 microns. For instance, such paper wrappers formed according to the present invention typically have a Diffusion Conductance Index (DCI) of less than about 15 cm-1 and a Static Burn Rate (SBR) of less than about 5 millimeters per minute.

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