Method for producing non-combustion type tobacco sheet

Abstract

A method for producing a non-combustion type tobacco sheet includes contacting a tobacco raw material with water to separate them into an aqueous extract and an insoluble tobacco residue, selectively reducing anions contained in the aqueous extract to provide a low-anion liquid, adding an acid to the low-anion liquid to provide a neutralized liquid, and blending pulp to the insoluble tobacco residue to prepare a mixture from which a sheet is made, followed by adding the neutralized liquid to the sheet to provide a tobacco sheet.

1 . A method for producing a non-combustion type tobacco sheet, comprising:
 contacting a tobacco raw material with water to separate them into an aqueous extract and an insoluble tobacco residue;   selectively reducing anions contained in the aqueous extract to provide a low-anion liquid;   adding an acid to the low-anion liquid to provide a neutralized liquid; and   blending pulp to the insoluble tobacco residue to prepare a mixture from which a sheet is made, followed by adding the neutralized liquid to the sheet to provide a tobacco sheet.   
     
     
         2 . The method according to  claim 1 , wherein the step of selectively reducing anions contained in the aqueous extract is an anion exchange treatment. 
     
     
         3 . The method according to  claim 1 , wherein the acid added to the low-anion liquid is selected from the group consisting of acetic acid, malic acid, maleic acid, citric acid, and succinic acid.