Tobacco – Tobacco treatment – Puffing
Patent
1980-12-31
1983-06-21
Millin, V.
Tobacco
Tobacco treatment
Puffing
131290, 131903, A24B 318
Patent
active
043889328
ABSTRACT:
Tobacco which has been increased in filling power by a conventional tobacco expansion process can be further increased in filling power by a post expansion heat treatment. The post expansion heat treatment comprises contacting the expanded tobacco produced by a conventional expansion process with a gaseous medium, such as air and/or steam, at a temperature of from about 200.degree. F. to about 450.degree. F. The post expansion heat treatment is preferably conducted at a lower temperature than the temperature of the heating step of the expansion process, and thus can be more easily controlled, while providing an additional increase in filling power. The product of the post expansion heat treatment process of this invention has been found to be as acceptable in subjective smoking characteristics as the expanded tobacco which is treated by the process.
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Merritt Henry B.
Sykes Larry M.
Inskeep George E.
Millin V.
Palmer, Jr. Arthur I.
Philip Morris Incorporated
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