Smoking article

Abstract

The present invention relates to a smoking article comprising a tobacco rod, a filter comprising at least one plug of filtration material wrapped with one or more filter wrappers, and a tipping material attaching the tobacco rod and the filter, wherein the one or more filter wrappers have a basis weight of more than 32 grams per square metre and less than 50 grams per square metre.

1 . A smoking article comprising:
 a tobacco rod;   a filter comprising at least one plug of filtration material wrapped with one or more filter wrappers; and   a tipping material attaching the tobacco rod and the filter;   wherein the one or more filter wrappers have a basis weight of more than 32 grams per square metre and less than 50 grams per square metre, and the at least one plug of filtration material forming the filter has a plasticizer content of between about 5% and about 10%.   
     
     
         2 . A smoking article according to  claim 1 , wherein a hardness of the smoking article measured at any point of the filter when attached to the tobacco rod by the tipping material is less than about 90%. 
     
     
         3 . A smoking article according to  claim 1 , wherein a hardness of the smoking article measured at any point of the filter when attached to the tobacco rod by the tipping material is higher than about 85%. 
     
     
         4 . A smoking article according to  claim 1 , wherein the basis weight is between about 42 and 48 grams per square metre. 
     
     
         5 . A smoking article according to  claim 1 , wherein the one or more filter wrappers are non-porous wrappers. 
     
     
         6 . A smoking article according to  claim 1 , wherein the one or more filter wrappers have a thickness of between about 50 to 60 microns. 
     
     
         7 . A smoking article according to  claim 1 , wherein the one or more filter wrappers is a single filter wrapper, and the at least one plug of filtration material is a single plug of filtration material wrapped with the single filter wrappers. 
     
     
         8 . A smoking article according to  claim 1 , wherein the one or more filter wrappers is a single filter wrapper, and the at least one plug of filtration material further includes at least one first plug of non-wrap acetate filtration material and at least one second plug of non-wrap acetate filtration material, the first and second plugs of non-wrap acetate filtration material being overwrapped by the single filter wrapper holding both first and second plugs in a spaced relationship to define a cavity there between. 
     
     
         9 . A smoking article according to  claim 8 , wherein the filter comprises at least one fluid-releasing member positioned in the cavity. 
     
     
         10 . A smoking article according to  claim 1 , wherein the one or more filter wrappers comprises a waterproof non porous wrapper. 
     
     
         11 . A smoking article according to  claim 1 , wherein the filter has a length of between about 20 mm to 30 mm. 
     
     
         12 . A smoking article according to  claim 1 , wherein the filter has, at any part thereof, a circumference of between about 20 mm to about 25 mm. 
     
     
         13 . A smoking article according to  claim 11 , wherein the filter has a tow weight in the range from about 90 mg to about 160 mg. 
     
     
         14 . A filter for a smoking article, the filter comprising:
 at least one plug of filtration material wrapped with one or more filter wrappers;   wherein the one or more filter wrappers have a basis weight of more than 32 grams per square metre and less than 50 grams per square metre, and the at least one plug of filtration material forming the filter has a plasticizer content of between about 5% and 10%.   
     
     
         15 . Use of the filter according to  claim 14  in a smoking article.