Smoking article with over-tipping band

Abstract

There is provided a smoking article ( 100 ) comprising a wrapped rod of smokable material ( 101 );and a filter ( 102 ) comprising one or more filter segments( 103 ), wherein the filter is in axial alignment with the wrapped rod of smokable material ( 101 ) and abuts the wrapped rod of smokable material ( 101 ) at an interface( 105 ). A tipping wrapper ( 106 ) circumscribes at least a portion of the filter ( 102 ) and attaches the filter ( 102 ) to the wrapped rod of smokable material ) 101 ). The smoking article ( 100 ) further comprises an over-tipping band ( 107 ) circumscribing the filter ( 102 ) and overlying the tipping wrapper ( 106 ) at the upstream end of the filter ( 102 ) such that the over-tipping band ( 107 ) overlies the interface ( 105 ) between the wrapped rod of smokable material and the filter. The over-tipping band ( 107 ) is formed of an air impermeable sheet of a non-paper cellulosic material obtained by processing cellulose to form regenerated cellulose fibres.

1 . A smoking article comprising:
 a wrapped rod of smokable material;   a filter comprising one or more filter segments, wherein the filter is in axial alignment with the wrapped rod of smokable material and abuts the wrapped rod of smokable material at an interface;   a tipping wrapper circumscribing at least a portion of the filter and attaching the filter to the wrapped rod of smokable material;   an over-tipping band circumscribing the filter and overlying the tipping wrapper at an upstream end of the filter such that the over-tipping band overlies the interface between the wrapped rod of smokable material and the filter, wherein the over-tipping band is formed of a substantially air impermeable sheet of cellophane.   
     
     
         2 . (canceled) 
     
     
         3 . A smoking article according to  claim 1 , wherein the over-tipping band is substantially transparent. 
     
     
         4 . A smoking article according to  claim 1 , wherein the tipping wrapper is substantially transparent. 
     
     
         5 . A smoking article according to  claim 1 , wherein the over-tipping band extends at least 3mm in a longitudinal direction along the smoking article. 
     
     
         6 . A smoking article according to  claim 1 , wherein the over-tipping band extends in a longitudinal direction along the smoking article by less than about a longitudinal width of the tipping wrapper. 
     
     
         7 . A smoking article according to  claim 1 , wherein the a downstream end of the over-tipping band is at least 15 millimetres from the a downstream end of the filter. 
     
     
         8 . A smoking article according to  claim 1 , wherein the an upstream end of the over-tipping band is no more than 5 millimetres from the interface between the filter and the wrapped rod of smokable material. 
     
     
         9 . A smoking article according to  claim 1 , wherein the over-tipping band is formed of a tinted sheet material. 
     
     
         10 . A smoking article according to  claim 1 , wherein the over-tipping band is affixed to the tipping wrapper. 
     
     
         11 . A smoking article according to  claim 1 , wherein the tipping wrapper is a paper wrapper. 
     
     
         12 . A smoking article according to  claim 10  wherein the over-tipping band is provided as a laminated layer on the paper wrapper. 
     
     
         13 . A smoking article according to  claim 1 , wherein a self-extinguishment time of the smoking article is at least 15 percent lower than a self-extinguishment time of a corresponding smoking article with the over-tipping band removed. 
     
     
         14 . A method for manufacturing a smoking article, comprising:
 providing a rod of smokable material having a wrapper;   attaching a filter to the rod of smokable material by a tipping wrapper, wherein the filter abuts the rod of smokable material at an interface; and   providing an over-tipping band around the filter and overlying the tipping wrapper at the upstream end of the filter such that the over-tipping band overlies the interface between the wrapped rod of smokable material and the filter, wherein the over-tipping band is formed of cellophane.   
     
     
         15 . A method according to  claim 14 , wherein the over-tipping band is provided on the tipping wrapper prior to the step of attaching the filter to the rod of smokable material by the tipping wrapper. 
     
     
         16 . A smoking article according to  claim 3 , wherein the tipping wrapper is substantially transparent. 
     
     
         17 . A smoking article according to  claim 3 , wherein the over-tipping band extends at least 3 mm in a longitudinal direction along the smoking article. 
     
     
         18 . A smoking article according to  claim 4 , wherein the over-tipping band extends at least 3 mm in a longitudinal direction along the smoking article. 
     
     
         19 . A smoking article according to  claim 5 , wherein a downstream end of the over-tipping band is at least 15 millimetres from a downstream end of the filter. 
     
     
         20 . A smoking article according to  claim 5 , wherein an upstream end of the over-tipping band is no more than 5 millimetres from the interface between the filter and the wrapped rod of smokable material. 
     
     
         21 . A smoking article according to  claim 7 , wherein an upstream end of the over-tipping band is no more than 5 millimetres from the interface between the filter and the wrapped rod of smokable material.