Filter cigarette with a tobacco filter

Abstract

The invention relates to a tobacco filter for smoking products in which the tobacco material selected for the filter or parts thereof are subjected to a thermal treatment during the tobacco preparation process.

1 . Filter cigarette with a tobacco filter with: 
 a tobacco strand enclosed by a cigarette paper;    wherein the tobacco mixture of the tobacco strand contains a proportion of 15 to 30% of cut medium cut rolled stem; and    the smoke condensate yield of the tobacco strand is between 15 and 19 mg condensate for a strand length of 63 mm and a smoking length of 55 mm; with    a filter manufactured from aromatic tobaccos with a drawing resistance between 50 and 100 mmWC at a length of 21 mm; and with    a filter ventilation zone running in circumferential direction; wherein    the degree of filter ventilation is 30 to 70%;    characterized in that    the filter tobacco is manufactured without using medium cut rolled stem and without reconstituted tobacco with a width of cut of 0.3 to 0.6 mm; and    that the filter has a tobacco packing density of 350 to 450 g/cm 3 .    
     
     
         2 . Method of manufacturing a filter cigarette according to  claim 1 , characterized in that the tobacco used to manufacture the tobacco filter is raised to a tobacco temperature between 60 and 150° C., preferably 80 to 130° C., for a period of between 1 minute and a maximum of 20 minutes during the tobacco preparation process, and is subjected to a relative humidity of 40 to 80%, preferably 50 to 70%, during this time.