Cigarette for electrical smoking system
AssigneePhilip Morris Incorporated
InventorsJames D. Baggett, Jr., David A. Clark, Patrick C. Cowling, Richard G. Uhl, Susan E. Wrenn
Life of this patent
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Abstract
A novel cigarette adapted for use in an electrical cigarette system comprising a tobacco rod having filled and untilled tobacco rod portions and being arranged so that electrical heater elements may overlap the filled and untilled tobacco rod portions. The tobacco rod includes a tobacco web rolled into tubular form. The tobacco web is constructed in accordance with a novel process comprising the steps of converting tobacco feedstock into a continuous sheet of tobacco web and converting the continuous sheet of tobacco web into one or more bobbins of tobacco web suitable for automated manufacture of cigarettes.
Claims8
A method of manufacturing a tobacco web comprising a base web and a layer of tobacco material, said tobacco web being foldable into a tubular form as part of a cigarette operative with an electrical cigarette lighter, said method comprising the steps of:
- separating solubles from fibers of a tobacco feedstock, said solubles being in solution comprising 5 to 10% by weight dissolved tobacco constituents;
- producing said base web by forming a slurry of said separated tobacco fiber, mixing said slurried tobacco-fiber with a slurried strengthening agent to form a slurried mixture and casting said slurried mixture onto a web forming apparatus;
- producing said tobacco material by mixing said 5 to 10% solution of tobacco constituents with additional tobacco particles, glycerin and pectin so as to form a dispersion of tobacco material and adjusting water content so as to achieve in said dispersion a solids content in the range of approximately 20 to 30%;
- applying said dispersion of tobacco material along said base web to form a sheet of said tobacco web;
- drying said sheet of said tobacco web to moisture content in the range of approximately 8.5 to 12%;
- cooling said sheet of said tobacco web to a temperature in the range of approximately 70.degree. to 80.degree. F.;
- decurling said sheet of said tobacco web;
- winding said sheet of said tobacco web so as to form a roll of tobacco web;
- and
- slitting said roll of tobacco web so as to produce a bobbin of tobacco web.
Dependencies are inferred from the claim text.