Multi-sheet filter for a smoking article

Abstract

A filter for a smoking article. The filter includes two or more filter substrate sheets, wherein each filter substrate sheet is folded individually such that the two or more filter substrate sheets are disposed adjacent to each other within the filter and are not layered with respect to each other.

What is claimed is: 
     
         1 . A filter for a smoking article, comprising two or more filter substrate sheets, wherein each filter substrate sheet is folded individually such that the two or more filter substrate sheets are disposed adjacent to each other within the filter. 
     
     
         2 . The filter of  claim 1 , further comprising three or more filter substrate sheets disposed adjacent to each other within the filter. 
     
     
         3 . The filter of  claim 1 , wherein the two or more filter substrate sheets are not layered with respect to each other. 
     
     
         4 . The filter of  claim 2 , wherein the three or more filter substrate sheets are not layered with respect to each other. 
     
     
         5 . The filter of  claim 1 , wherein each filter substrate sheet has a basis weight of 3-35 gsm. 
     
     
         6 . The filter of  claim 5 , wherein each filter substrate sheet has a basis weight of 5-20 gsm. 
     
     
         7 . The filter of  claim 6 , wherein each filter substrate sheet has a basis weight of 8-13 gsm. 
     
     
         8 . The filter of  claim 2 , wherein each filter substrate sheet has a basis weight of 3-35 gsm. 
     
     
         9 . The filter of  claim 8 , wherein each filter substrate sheet has a basis weight of 5-20 gsm. 
     
     
         10 . The filter of  claim 9 , wherein each filter substrate sheet has a basis weight of 8-13 gsm.