Cigarette and method for treating cigarette material

Abstract

A cigarette includes a shredded tobacco rod and a cigarette paper that wraps the outer peripheral surface of the shredded tobacco rod. The shredded tobacco and/or the cigarette paper contains a transition metal salt of an organic acid.

1 . A cigarette comprising a shredded tobacco rod and a cigarette paper that wraps the outer peripheral surface of the shredded tobacco rod, wherein the shredded tobacco and/or the cigarette paper contains a transition metal salt of an organic acid. 
     
     
         2 . The cigarette according to  claim 1 , wherein the organic acid is fumaric acid, citric acid, oxalic acid, formic acid, benzoic acid, or lactic acid. 
     
     
         3 . The cigarette according to  claim 1 , wherein the transition metal is at least one metal selected from the group consisting of Ti, Mn, Fe, Co, Ni, Cu, Y, Zr, Nb, Mo, Ru, Rh, Pd, Ag, Ce, Ir, Pt and Au. 
     
     
         4 . The cigarette according to  claim 1 , wherein the transition metal salt of the organic acid is contained in an amount of 1 to 50% by weight in the shredded tobacco. 
     
     
         5 . The cigarette according to  claim 1 , wherein the transition metal salt of the organic acid is contained in an amount of 0.1 to 50 g/m 2  in the cigarette paper. 
     
     
         6 . A method for treating a cigarette material, comprising treating shredded tobacco and/or cigarette paper with a transition metal salt of an organic acid. 
     
     
         7 . The method according to  claim 6 , wherein the organic acid is fumaric acid, citric acid, oxalic acid, formic acid, benzoic acid, or lactic acid. 
     
     
         8 . The method according to  claim 6 , wherein the transition metal is at least one metal selected from the group consisting of Ti, Mn, Fe, Co, Ni, Cu, Y, Zr, Nb, Mo, Ru, Rh, Pd, Ag, Ce, Ir, Pt and Au. 
     
     
         9 . The method according to  claim 6 , wherein a solution in which the transition metal salt of the organic acid dispersed in an organic solvent is spread onto the shredded tobacco and/or the cigarette paper. 
     
     
         10 . The method according to  claim 9 , wherein the solution further contains an emulsifier.