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US 4,574,819 AGranted
Process for increasing the filling power of tobacco
AssigneePhilip Morris Incorporated
InventorsNorman B. Rainer, Dean M. Siwiec
Life of this patent
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Abstract
Cut tobacco is treated with a supersaturated aqueous solution of calcium citrate and excess moisture is removed. The result is a significant increase in the filling power of the cut tobacco.
Claims6
A process for increasing the filling power of cut tobacco comprising:
- treating the tobacco with a supersaturated aqueous calcium citrate solution in an amount effective to provide 0.5 to 6% citrate residue based on the tobacco and then heating the tobacco to drive off excess moisture.
Dependencies are inferred from the claim text.