Smoking articles

Abstract

A smoking article comprising at least two of: (a) a tobacco blend comprising one or more tobaccos or tobacco grades with low TSNA and/or metal content; (b) a tobacco blend that has been treated to remove polyphenols and/or peptides; (c) a tobacco substitute sheet comprising a non-combustible inorganic filler, a binder and an aerosol generating means; (d) a high activity carbon comprising a polymer-derived carbon material; and (e) an amine-functionalised chelating resin.

1 . A smoking article comprising:
 a tobacco blend comprising one of:
 at least one tobacco; and 
 at least one tobacco grade; 
 said one of at least one tobacco and at least one tobacco grade having at least one of low TSNA and metal content; and 
   a high activity carbon comprising a synthetic polymer-derived carbon material;   further comprising at least one of:   a tobacco blend that has been treated to remove at least one of polyphenols and peptides; and   a tobacco substitute sheet comprising a non-combustible inorganic filler, a binder and an aerosol generating means;   
     
     
         2 . The smoking article as claimed in  claim 1 , further comprising a rod of smokable material comprising up to 60% tobacco substitute sheet. 
     
     
         3 . The smoking article as claimed in  claim 2 , further comprising a rod of smokable material comprising 20% tobacco substitute sheet and 80% tobacco. 
     
     
         4 . The smoking article as claimed in  claim 1 , further comprising glycerol. 
     
     
         5 . The smoking article as claimed in  claim 1 , further comprising a rod of smokable material comprising up to 100% treated tobacco blend. 
     
     
         6 . The smoking article as claimed in  claim 5 , further comprising a rod of smokable material comprising 75% treated tobacco blend and 25% tobacco. 
     
     
         7 . The smoking article as claimed in  claim 1 , further comprising a filter having three sections, a mouth end stage comprising cellulose acetate, a middle stage comprising cellulose acetate and an amine-functionalised chelating resin, and a tobacco end stage comprising cellulose acetate and high activity carbon. 
     
     
         8 . The smoking article as claimed in  claim 7 , wherein the middle stage comprises 20 mg of an amine-functionalised chelating resin. 
     
     
         9 . The smoking article as claimed in  claim 7 , wherein the tobacco end stage further comprises 60 mg carbon. 
     
     
         10 . The smoking article as claimed in  claim 1 , further comprising a filter having two sections, a mouth end stage comprising cellulose acetate, and a tobacco end stage comprising cellulose acetate and carbon. 
     
     
         11 . The smoking article as claimed in  claim 10 , wherein the tobacco end stage further comprises 80 mg carbon. 
     
     
         12 . The smoking article as claimed in  claim 7 , wherein the carbon comprises high activity carbon beads comprising a polymer-derived carbon material. 
     
     
         13 . The smoking article as claimed in  claim 7 , wherein the amine-functionalised chelating resin is CR20. 
     
     
         14 . A smoking article comprising:
 a tobacco blend comprising one of:
 at least one tobacco; and 
 at least one tobacco grade; 
 said one of at least one tobacco and at least one tobacco grade having at least one of low TSNA and metal content; 
   a high activity carbon comprising a synthetic polymer-derived carbon material;   a tobacco blend that has been treated to remove at least one of polyphenols and peptides;   a tobacco substitute sheet comprising a non-combustible inorganic filler, a binder and an aerosol generating means; and   an amine-functionalised chelating resin.   
     
     
         15 . The smoking article as claimed in  claim 1 , configured to exhibit a reduction in yield in all mainstream smoke constituents considered to be undesirable of at least 10%. 
     
     
         16 . The smoking article as claimed in  claim 1 , further comprising an amine-functionalised chelating resin.