| 摘要 |
The ventilated filter cigarettes of the present invention have an American-blend flavor. The cigarettes comprise Virginia tobacco with main stream smoke have a condensate/nicotine ratio of 5:1 to 9:1, a condensate value of 10 mg maximum, a pH-value greater than 6.0, and a pollutant index of less than 35. Specific features of this invention include: a filling tobacco comprising Virginia tobacco with a high nicotine content of 2 to 3.5% by weight; a packing density is 150 to 250 mg/cm3; a cigarette paper having an air permeability of 3 to 20 CORESTA units, in which the cigarette rod is in the hardness/haptic range of 1.9 to 2.5 mm ET; a fine-titre cellulose acetate filter having no flavor-modifying additives and having an individual titre of 1.3 to 2.5 denier, and a total titre of 40,000 to 55,000 denier resulting in a draw resistance of 95 to 160 daPa for a length of 21 mm and a diameter of 7.8 mm, and a secondary air supply corresponding to a filter ventilation level to 20 to 45%; and a final draw resistance of the cigarette of 100 to 160 daPa.
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