Oral tobacco product, method for manufacturing packaging material for oral tobacco product, and method for manufacturing oral tobacco product

Abstract

Provided is an oral tobacco product that includes, as constituent elements, a tobacco filler and a liquid-permeable packaging material for packaging the tobacco filler, wherein the packaging material includes a tobacco material, and the weight of solids in the packaging material is 11.0 g/m2 or greater.

What is claimed is: 
     
         1 . An oral tobacco product including, as constituent elements, a tobacco filler and a liquid-permeable packaging material for packaging the tobacco filler,
 wherein the packaging material includes solids derived from a tobacco material and a weight of the solids in the packaging material is 11.0 g/m 2  or greater.   
     
     
         2 . The oral tobacco product according to  claim 1 ,
 wherein the liquid-permeable packaging material includes a green part having an a* value in a CIELab color system of 1.0 or less.   
     
     
         3 . The oral tobacco product according to  claim 1 ,
 wherein the liquid-permeable packaging material is composed of a non-woven fabric.   
     
     
         4 . The oral tobacco product according to  claim 1 ,
 wherein the packaging material is obtained by adding thereto any of the following 1) to 3) as a tobacco material:
 1) a tobacco powder extraction liquid obtained using a solvent containing ethanol and/or propylene glycol as an extraction solvent; 
 2) a slurry mixture containing a tobacco powder having an average particle size of 30 μm or less and a liquid dispersion medium; and 
 3) a tobacco powder. 
   
     
     
         5 . The oral tobacco product according to  claim 4 ,
 wherein an a* value of the tobacco powder is 1.0 or less, and an activity value of an enzyme responsible for browning of the tobacco powder is 0.1 U/g or less.   
     
     
         6 . The oral tobacco product according to  claim 1 ,
 wherein the tobacco filler has a green color having an a* value of 1.0 or less in a CIELab color system.   
     
     
         7 . A method for manufacturing a packaging material for an oral tobacco product, the method comprising
 a step of adding a tobacco material to a liquid-permeable packaging material,   wherein the step is a step of adding the tobacco material to the liquid-permeable packaging material so that a weight of solids in the packaging material is 11.0 g/m 2  or greater.   
     
     
         8 . The method for manufacturing a packaging material for an oral tobacco product according to  claim 7 ,
 wherein the liquid-permeable packaging material is a non-woven fabric.   
     
     
         9 . The method for manufacturing a packaging material for an oral tobacco product according to  claim 7 , wherein the tobacco material is a slurry mixture containing a tobacco powder having an average particle size of 30 μm or less and a liquid dispersion medium. 
     
     
         10 . The method for manufacturing a packaging material for an oral tobacco product according to  claim 7 ,
 wherein an extraction liquid obtained by a step of extracting a tobacco powder using a solvent containing ethanol and/or propylene glycol as an extraction solvent is used as the tobacco material.   
     
     
         11 . The method for manufacturing a packaging material for an oral tobacco product according to  claim 10 ,
 wherein a weight ratio between the tobacco powder and the solvent in the extraction liquid is 1:1.5 to 1:8.   
     
     
         12 . The method for manufacturing a packaging material for an oral tobacco product according to  claim 9 ,
 wherein the tobacco powder is obtained through an alkaline sterilization treatment.   
     
     
         13 . The method for manufacturing a packaging material for an oral tobacco product according to  claim 9 ,
 wherein the step of adding the tobacco material to the liquid-permeable packaging material is performed by immersion, spraying, or printing.   
     
     
         14 . The method for manufacturing a packaging material for an oral tobacco product according to  claim 8 ,
 wherein the addition of the tobacco material is performed by adding a tobacco powder during papermaking of the non-woven fabric.   
     
     
         15 . A method for manufacturing an oral tobacco product, the method comprising
 a step of filling the packaging material obtained by the method for manufacturing a packaging material for an oral tobacco product according to  claim 7  with a tobacco filler.   
     
     
         16 . The method for manufacturing an oral tobacco product according to  claim 15 ,
 wherein the following steps are included, as a step of manufacturing the tobacco filler, before the step of filling the packaging material with the tobacco filler:
 1) a step of mixing a tobacco powder, a salt, and a base; 
 2) a step of heating the mixture obtained through the step 1); 
 3) a step of cooling and drying the mixture after heating; and 
 4) a step of adding an additive to the mixture after drying. 
   
     
     
         17 . The method for manufacturing an oral tobacco product according to  claim 16 ,
 wherein when the tobacco material added to the packaging material is an extraction liquid obtained by a step of extracting a tobacco powder using a solvent containing ethanol and/or propylene glycol as an extraction solvent, the method comprises a step of adding an extraction residue obtained in the extraction step to the tobacco filler.   
     
     
         18 . The method for manufacturing an oral tobacco product according to  claim 16 ,
 wherein the following steps a) and b) are included, as a step of manufacturing the tobacco powder used for manufacturing the tobacco filler, before manufacturing the tobacco filler, and a water content of the tobacco powder is kept at 7 weight % or less after the step a) until the step b) and the step 1):
 a) a step of drying tobacco leaves after harvesting the tobacco leaves until a water content of the tobacco leaves is 7 weight % or less; and 
 b) a step of obtaining a tobacco powder by crushing the tobacco leaves after the step of drying. 
   
     
     
         19 . A method for manufacturing an oral tobacco product, the method comprising:
 a step of filling a liquid-permeable packaging material with a tobacco filler having a green color having an a* value of 1.0 or less in a CIELab color system; and   a step of adding a solvent containing ethanol and/or propylene glycol to a package after the filling from outside of the package.   
     
     
         20 . The method for manufacturing an oral tobacco product according to  claim 19 ,
 wherein the following steps are included as a step of manufacturing the tobacco filler before the step of filling the packaging material with the tobacco filler:
 1) a step of mixing a tobacco powder, a salt, and a base; 
 2) a step of heating the mixture obtained through the step 1); 
 3) a step of cooling and drying the mixture after heating; and 
 4) a step of adding an additive to the mixture after drying. 
   
     
     
         21 . The method for manufacturing an oral tobacco product according to  claim 20 ,
 wherein the following steps a) and b) are included, as a step of manufacturing the tobacco powder used for manufacturing the tobacco filler, before manufacturing the tobacco filler, and a water content of the tobacco powder is kept at 7 weight % or less after the step a) until the step b) and the step 1) set forth above:
 a) a step of drying tobacco leaves after harvesting the tobacco leaves until a water content of the tobacco leaves is 7 weight % or less; and 
 b) a step of obtaining a tobacco powder by crushing the tobacco leaves after the step of drying.