ES430187A1 - Engineered cigarette - Google Patents

Abstract

An improved cigarette is provided in which the tobacco column is modified by incorporating a tobacco substitute such as shredded carbon filled paper with the tobacco in increasing amounts toward the butt end of the cigarette. The shredded carbon filled paper may be mixed with the tobacco in preselected zones or segments along the length of the cigarette with the zones closest to the mouthpiece containing increasing amounts or the cigarette may be constructed such that the shredded carbon filled paper is blended with the tobacco in gradually increasing amounts toward the mouthpiece along the whole length of the tobacco column. Cigarettes made according to this invention display a more level yield of constituents in the smoke from tip end to butt end when measured on a puff by puff basis during smoking while also reducing the overall yield of constituents in the smoke from the entire cigarette.