Electrical smoking article and method for making same

A tobacco flavor unit operative with an electrical heater, the tobacco flavor unit comprising:

• a carrier having a first end and a second end and having a first surface and a second surface, the first surface at least partially defining a cavity at a location along said carrier between said first end and said second end, and the second surface adapted to be disposed adjacent an electrical heater;
• tobacco flavor medium disposed on the first surface of said carrier, said carrier adapted to communicate heat received along said second surface to said tobacco flavor medium, said tobacco flavor medium when heated releasing a quantity of tobacco flavor substance into said cavity;
• and
• filtering means for filtering the quantity tobacco flavor substance prior to delivery to a smoker;
• wherein the filtering means comprises:
• a free-flow filter adjacent the second end of said carrier, and adapted to be disposed between said cavity and the mouth of the smoker, for providing structural support to the unit;
• and
• a back-flow filter adjacent the first end of said carrier for filtering the back-flow of tobacco flavor substance, whereby condensation of tobacco flavor substance on the electrical heater is abated.

A tobacco flavor unit operative with an electrical heater element for releasing tobacco flavorant, said tobacco flavor unit comprising;

• a thermally transmissive, tubular carrier web, said tubular carrier web having an outer surface for receiveing heat and an inner surface, said tubular carrier web comprising a nonwoven fibrous mat;
• and
• a tobacco material disposed along at least a portion of the inner surface of the tubular carrier web, said tobacco material adapted to release a tobacco flavorant responsively to a transmission of heat through the tubular carrier web;
• filter means at a first end of said tubular carrier web through which a smoker draws released tobacco flavorant from said tobacco unit;
• and
• a flow resistive element operative at an opposite end of said tubular carrier web from said first end.

A tobacco flavor unit for releasing tobacco flavorant, comprising:

• a thermally transmissive carrier web rolled into substantially tubular form, said rolled web having an outer surface for receiving heat and an inner surface;
• and
• a tobacco material disposed on at least a portion of the inner surface of the rolled carrier web, said tobacco material adapted to release a tobacco flavorant responsively to a transmission of heat through the rolled carrier web;
• said tobacco flavor unit further comprising first and second filters at spaced apart locations within said rolled web, at least a portion of said tobacco material being located along said inner surface between said first and second filters, said rolled web and said first and second filters defining a cavity for receiving tobacco flavorant released from said tobacco material.