Filter for a Smoking Article

Abstract

A filter element ( 214 ) for a smoking article comprising a plug of filter material ( 210 ) having a longitudinally extending surface ( 213 ), a wrapper ( 220 ) wrapped around the longitudinally extending surface of the plug of filter material and a tobacco product ( 240 ) located between the longitudinally extending surface of the plug of filter material and the wrapper so as to cover at least a part of the longitudinally extending surface.

1 . A filter element for a smoking article comprising:
 a plug of filter material having a longitudinally extending surface;   a plug wrap wrapped around the longitudinally extending surface of the plug of filter material; and   a tobacco product provided between the longitudinally extending surface of the plug of filter material and the plug wrap and configured to cover at least a part of the longitudinally extending surface, wherein a section of the filter material comprises activated carbon and the coverage of the tobacco product is confined to a longitudinally extending surface of the section comprising activated carbon.   
     
     
         2 . The filter element according to  claim 1 , wherein the tobacco product covers only a part of the longitudinally extending surface of the plug of filter material. 
     
     
         3 . The filter element according to  claim 1 , wherein the tobacco product is provided in longitudinal stripes between said surface of the plug of filter material and the plug wrap. 
     
     
         4 . The filter element according to  claim 1 , wherein the tobacco product is in contact with the longitudinally extending surface of the plug of filter material. 
     
     
         5 . The filter element according to  claim 1 , wherein the tobacco product is adhered to an inner surface of the plug wrap. 
     
     
         6 . The filter element according to  claim 1 , wherein an adhesive comprising the tobacco product is applied to an inner surface of the plug wrap. 
     
     
         7 . The filter element according to  claim 1 , wherein the tobacco product comprises shredded tobacco. 
     
     
         8 . A filter for a smoking article comprising one or more filter elements according to  claim 1 . 
     
     
         9 . A filter comprising at least two filter elements according to  claim 1 , wherein a first of the filter elements comprises activated carbon and a second of the filter elements does not comprise activated carbon, the tobacco product covering a longitudinally extending surface of the first filter element. 
     
     
         10 . A smoking article including the filter element according to  claim 1 . 
     
     
         11 . A filter element for a smoking article, comprising:
 a plug of filter material having a longitudinally extending surface; and   a plug wrap comprising reconstituted tobacco material wrapped around the longitudinally extending surface of the plug of filter material;   wherein a section of the filter material comprises activated carbon and the reconstituted tobacco material is confined to a longitudinally extending surface of the section comprising activated carbon.   
     
     
         12 . The filter element according to claim ii, wherein the reconstituted tobacco material is reconstituted tobacco paper. 
     
     
         13 . A smoking article comprising the filter element according to  claim 11 . 
     
     
         14 . A method of manufacturing a filter element for a smoking article, comprising
 providing a tobacco product between a longitudinally extending surface of a plug of filter material and a plug wrap, the tobacco product covering at least a part of the longitudinally extending surface, wherein a section of the filter material comprises activated carbon and the tobacco product is confined to a longitudinally extending surface of the section comprising activated carbon.   
     
     
         15 . The method according to  claim 14 , comprising adhering the tobacco product to an inner surface of the plug wrap. 
     
     
         16 . The method according to  claim 14 , comprising applying an adhesive comprising the tobacco product to an inner surface of the plug wrap. 
     
     
         17 . A method of manufacturing a filter element for a smoking article, comprising
 providing a plug wrap comprising reconstituted tobacco material around a longitudinally extending surface of a plug of filter material, wherein a section of the filter material comprises activated carbon and the reconstituted tobacco material is confined to a longitudinally extending surface of the section comprising activated carbon.   
     
     
         18 . The method according to  claim 17 , wherein the reconstituted tobacco material is reconstituted tobacco paper.