Method of increasing the specific volume of tobacco ribs
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United States of America
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Jan 29, 1985
Grant Date -
N/A
app pub date -
Jun 8, 1983
filing date -
Apr 26, 1977
priority date (Note) -
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Abstract
Tobacco ribs which are separated from laminae are contacted by steam at a temperature of approximately 150 degrees whereby the steam condenses on the surfaces of ribs and the thus released heat promotes the penetration of condensate into as well as gradual evaporation of initial moisture and condensate in the interior of ribs to thereby increase the specific volume of the ribs. The ribs are agitated during contact with and are caused to float in steam. Warm water is sprayed onto the ribs during contact with steam. The contact with steam prior to start of expansion takes up approximately one minute, and the ribs remain in contact with steam for another minute to effect expansion by evaporated moisture. The thus treated ribs are immediately rolled, severed and dried. The volume of ribs can be increased still further by contacting the severed ribs, prior to drying, with steam and water to bring about additional evaporation of moisture in the interior of severed ribs.
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