Wrapping Paper For A Smoking Article

Abstract

A wrapping paper for a smoking article includes a base paper, wherein the base paper includes a plurality of burn-suppressing regions that are provided apart from each other on one surface of the wrapping paper, wherein the ratio of diffusion capacity between the burn-suppressing regions and the base paper is in the range of 5% to 35%.

1 . A wrapping paper for a smoking article, comprising a base paper, wherein the base paper comprises a plurality of burn-suppressing regions that are provided apart from each other, wherein a ratio of a diffusion capacity of the plurality of burn-suppressing regions to a diffusion capacity of the base paper is in the range of 5% to 35%. 
     
     
         2 . The wrapping paper according to  claim 1 , wherein the diffusion capacity of the plurality of burn-suppressing regions is 0.10 to 0.35 cm/s. 
     
     
         3 . The wrapping paper according to  claims 1 , wherein the diffusion capacity of the base paper is 1.0 to 2.0 cm/s. 
     
     
         4 . The wrapping paper according to  claim 1 , wherein the plurality of burn-suppressing regions are provided on a surface of the base paper. 
     
     
         5 . The wrapping paper according to  claim 1 , wherein the plurality of burn-suppressing regions are provided embedded in a matrix of the base paper. 
     
     
         6 . The wrapping paper according to  claim 1 , wherein the plurality of burn-suppressing regions contain at least one additive that reduces the diffusion capacity of the base paper, and wherein the at least one additives is selected from the group consisting of alginates, polyvinyl alcohol, polyvinyl acetates, modified and unmodified starches, cellulose derivatives, inorganic ions, natural gums, or mixtures thereof. 
     
     
         7 . The wrapping paper according to  claim 1 , wherein the plurality of burn-suppressing regions are in a form of stripes. 
     
     
         8 . The wrapping paper according to  claim 1 , wherein the base paper comprises a fibrous material, a filler material, and one or more burning additives. 
     
     
         9 . The wrapping paper according to  claim 8 , wherein a paper porosity of the base paper is 10 to 60 CU and a total amount of the one or more burning additives is 0.1 to 0.7 wt.-% based on a dry weight of the base paper. 
     
     
         10 . The wrapping paper according to  claim 8 , wherein the one or more burning additives is selected from the group consisting of citrate salts, acetate salts, phosphate salts, tartrate salts, nitrate salts, or mixtures thereof. 
     
     
         11 . The wrapping paper according to  claim 1 , wherein a basis weight of the base paper is 20 to 26 g/m 2 . 
     
     
         12 . The wrapping paper according to any of the previous  claims 8 , wherein an amount of the filler material is 17 to 23 wt.-% based on the dry weight of the base paper. 
     
     
         13 . The wrapping paper according to  claim 8 , wherein the filler material is selected from the group consisting of calcium carbonate, kaolin clay, talc, titanium dioxide, alumina trihydrate, and precipitated silica and silicates (PSS), or mixtures thereof. 
     
     
         14 . The wrapping paper according to  claim 8 , wherein the fibrous material is a cellulosic fibrous material. 
     
     
         15 . A smoking article, comprising a charge of smokable material surrounded by a wrapping paper according to  claim 1 .