Filter unit for filter-cigarettes and filter cigarettes

Abstract

The filter unit according the invention contains wood cuttings of a particle size of 0.2-1.2 mm impregnated with sodium chloride solution, preferably with a solution of 20-40% sodium chloride and 80-60% of water. The wood cutting may be in a loose form or the wood cutting particles ( 9 ) may be arranged on a rib ( 8 ) made of cellulose-acetate. The filter cigarette containing a filter unit according to invention may contain the filter unit ( 5 ) between the filter-tip ( 4 ) and the tobacco body ( 1 ) or between two parts of the filter-tip ( 4 ). Preferably, the filter unit ( 5 ) is separated from the filter-tip ( 4 ) and/or from the tobacco body ( 1 ) by a web ( 6 ).

1 . Filter unit for filter-cigaretes containing tobacco body and filter-tip, characterized in that it contains wood cuttings of a particle size of 0.2-1.2 mm impregnated with sodium chloride solution.  
     
     
         2 . Filter unit according to  claim 1 , characterized in that the wood cutting is impregnated with a solution of 20-40% sodium chloride and 80-60% of water.  
     
     
         3 . Filter unit according to  claim 2 , characterized in that it contains the wood cutting in a loose form.  
     
     
         4 . Filter unit according to  claim 2 , characterized in that it contains wood cutting particles ( 9 ) arranged on a rib ( 8 ) made of cellulose acetate.  
     
     
         5 . Filter cigarette containing tobacco body, filter-tip and a filter unit according to  claim 1 , characterized in that the filter unit ( 5 ) is between the filter-tip ( 4 ) and the tobacco body ( 1 ).  
     
     
         6 . Filter cigarette unit according to  claim 5 , characterized in that the filter unit ( 5 ) is between two parts of the filter-tip ( 4 ).  
     
     
         7 . Filter cigarette according to  claim 6 , characterized in that the filter unit ( 5 ) is separated from the filter-tip ( 4 ) and/or from the tobacco body ( 1 ) by a web ( 6 ).  
     
     
         8 . Filter cigarette according to  claim 5 , characterized in that the filter unit ( 5 ) is separated from the filter-tip ( 4 ) and/or from the tobacco body ( 1 ) by a web ( 6 ).  
     
     
         9 . Filter unit according to  claim 1 , characterized in that it contains the wood cutting in a loose form.  
     
     
         10 . Filter unit according to  claim 1 , characterized in that it contains wood cutting particles ( 9 ) arranged on a rib ( 8 ) made of cellulose acetate.