Filter for Cigarettes Made with Biological Material

Abstract

Filter for cigarettes made with biological material including a through separation structure ( 2 ) suitable for being coupled with a common paper for the production of cigarettes, the separation structure ( 2 ) forms compartments ( 3 ) suitable for the passage and filtration of the smoke, where this separation structure ( 2 ) is made of vegetable flour paste.

What is claimed is: 
     
         1 . Filter for cigarettes made with biological material comprising a through separation structure coupled with a common paper for making cigarettes, said separation structure forming compartments adapted for the passage and filtration of smoke, wherein said separation structure is made with vegetable flour paste. 
     
     
         2 . Filter according to  claim 1 , further comprising cotton, hemp or linen inserted in the compartments to retain more harmful substances. 
     
     
         3 . Filter according to  claim 1 , wherein the separation structure, in cross section, is substantially S-shaped surrounded by a tubular element and formed by a single sheet of paste by folding and rolling said sheet. 
     
     
         4 . Filter according to  claim 3 , wherein said S-shaped configuration of the separation structure extends in the center of the separation structure along the entire length of the filter. 
     
     
         5 . Filter according to  claim 1 , further comprising a tubular element, and wherein said separation element, in cross section, is substantially M-shaped and is inserted inside the tubular element. 
     
     
         6 . Filter according to  claim 5 , wherein the M-shaped configuration of the separation structure extends along the entire length of the filter. 
     
     
         7 . Filter according to  claim 1 , wherein the separation element, in longitudinal section, has a wavy shape and holes that allow the passage of smoke. 
     
     
         8 . Filter according to  claim 7 , further comprising a tubular element, and wherein the wavy shape of the separation structure is surrounded by the tubular element and extends along the entire length of the filter. 
     
     
         9 . Filter according to  claim 1 , wherein the separation element is spiral-shaped and extends along the entire length of the filter. 
     
     
         10 . Filter according to  claim 1 , wherein the filter is made from a single sheet of paste. 
     
     
         11 . Filter according to  claim 1 , further comprising a tubular element surrounding said separation structure, and wherein the separation structure and the tubular element are made with vegetable flour paste. 
     
     
         12 . Filter according to  claim 11 , wherein said vegetable flour paste include at least one of wheat flour, hemp flour, rice flour or Khorasan wheat flour.