Tobacco smoke filter capable of selective removal of aldehydes

Claim 1

A TOBACCO SMOKE FILTER ADAPTED TO REMOVE ALDEHYDE IMPURITIES FROM TOBACCO SMOKE, SAID FILTER BEING COMPRISED OF A BUNDLE OF CRIMPED, CONTINUOUS FILAMENTS, THE NUMBER OF FILAMENTS IN THE BUNDLE BEING GREATER THAN 4,000, THE DENIER PER FILAMENT BEING LESS THAN 16, THE CRIMP BEING GREATER THAN 4 CRIMPS PER INCH, SUBSTANTIALLY ALL THE FILAMENTS BEING GENERALLY ALIGNED LONGITUDIANALLY OF THE FILTER, A WRAPPER ENCLOSING THE PERIPHERY OF THE BUNDLE, THE FILTER BEING FURTHER CHARACTERIZED IN THAT (A) THE FILAMENTS CONTAIN A PLASTICIZER AND (B) THE FILAMENTS CARRY ON THEIR SURFACE PARTICLES OF AN AMINO ACID MATERIAL WHICH IS A NONTOXIC, NONVOLATILE, SUBSTANTIALLY NONODOROUS SOLID AND WHICH AMINO ACID SOLID IS A CHEMICAL COMPOUND HAVING MORE THAN ONE CARBON ATOM BUT NOT MORE THAN SIX CARBON ATOMS AND WHICH HAS AT LEAST ONE FREE AMINO GROUP IN THIS MOLECULAR STRUCTURE WHEREBY SAID SOLID AMINO ACID MATERIAL NOT ONLY IS PRESENT TO REMOVER ALDEHYDES, BUT AS A SOLID IS AVAILABLE ON THE FILTER OF ASSIST THE FILTER IN REMOVING TAR PARTICLES FROM THE TOBACCO SMOKE STREAM.