Abstract: This invention provides a smoking article (1) having reduced sidestream smoke in the inter-puff period. A smoking article (1) according to the invention may comprise segments of a high level of tobacco-containing material (5) interconnected by segments of low level of tobacco-containing material (6) which are capable of maintaining smoulder in the inter-puff period and re-igniting the segments of a high level of tobacco-containing material (5) in the puff period. Alternatively, a smoking article according to another aspect of the invention may comprise a lengthwise, axially extending, tobacco-containing fuse portion (46) which sustains smoulder in the inter-puff period when surrounding tobacco material (45) is substantially extinguished and which re-ignites the extinguished material on puffing of the smoking article (1).

Abstract: This invention provides a smoking article having reduced sidestream smoke in the inter-puff period. A smoking article according to the invention may comprise a lengthwise, axially extending, tobacco-containing or non-tobacco fuse portion which sustains smoulder in the inter-puff period when surrounding tobacco material is substantially extinguished and which re-ignites the extinguished material on puffing of the smoking articles.

Abstract: This invention provides a smoking article having reduced sidestream smoke in the inter-puff period. A smoking article according to the invention may comprise segments of a high level of tobacco-containing material interconnected by segments of low level of tobacco-containing material which are capable of maintaining smoulder in the inter-puff period and re-igniting the segments of a high level of tobacco-containing material in the puff period. Alternatively, a smoking article according to another aspect of the invention may comprise a lengthwise, axially extending, tobacco-containing fuse portion which sustains smoulder in the inter-puff period when surrounding tobacco material is substantially extinguished and which re-ignites the extinguished material on puffing of the smoking articles.

Abstract: The disclosure relates to a method and apparatus for treating porous wrapping material for a smoking article, for example a cigarette filter. According to the invention, the porous material is provided, by coating with a film-forming substance, with an impervious region or regions positioned to coincide with a region or regions at which adhesive is to be applied, the said substance being dried or set before such adhesive is applied. Thus, a line or lines of the film-forming substance may be applied to the same face of the wrapping material as a line or lines of adhesive for sealing the wrap and/or anchoring filtering material thereto, namely to that face which will be on the inside of the wrap formed from the said material.

Abstract: The invention relates to an apparatus for treating porous wrapping material for a smoking article, for example a cigarette filter. According to the invention, the porous material is provided, by coating with a film-forming substance, with an impervious region or regions positioned to coincide with a region or regions at which adhesive is to be applied, the said substance being dried or set before such adhesive is applied. Thus, a line or lines of the film-forming substance may be applied to the same face of the wrapping material as a line or lines of adhesive for sealing the wrap and/or anchoring filtering material thereto, namely to that face which will be on the inside of the wrap formed from the said material.