초록 ▼

The present invention relates to an improved wrapper for a smoking article haviing a combustible fuel element encircled by an insulating layer and a physically separate aerosol generating means as well as to smoking articles employing such wrappers. The wrapper encircles at least a portion of the in

The present invention relates to an improved wrapper for a smoking article haviing a combustible fuel element encircled by an insulating layer and a physically separate aerosol generating means as well as to smoking articles employing such wrappers. The wrapper encircles at least a portion of the insulating layer for the fuel element and comprises a permeable sheet material which during burning of the fuel provides a coherent layer to assist in controlling the amount of peripheral air to the fuel element during smoking. Preferred smoking articles which employ the wrapper of the present invention have a short fuel element, a physically separate aerosol generating means including an aerosol forming material, an insulating material around the fuel element, a relatively long mouthend piece, and a combination of sheet materials as the wrapper comprising an innerwrap which after lighting of the fuel element burns away to a high permeability non-coherent ash and an outerwrap which upon lighting fuses to form a coherent ash which assists in controlling the amount of peripheral air to the fuel element during smoking.

대표청구항 ▼

An improved wrapper for a smoking article having a combustible fuel element encircled at least in part by an air permeable insulating layer and a physically separate aerosol generating means including an aerosol forming material, the wrapper encircling at least a portion of the insulating layer, and

An improved wrapper for a smoking article having a combustible fuel element encircled at least in part by an air permeable insulating layer and a physically separate aerosol generating means including an aerosol forming material, the wrapper encircling at least a portion of the insulating layer, and comprising a material which during burning of the fuel element provides a permeable coherent layer to assist in controlling the amount of peripheral air to the burning fuel element, wherein the wrapper reduces the peak puff aerosol delivery when measured as wet total particulate matter by at least about 20% when compared to a smoking article having the same structure but without the wrapper, when the smoking articles are smoked under conditions which consist of 50 ml puff volumes of 2 seconds duration, separated by 28 seconds of smolder, for at least six puffs.