PROCESS FOR EXPANDING TOBACCO

Tobacco is, prior to contacting thereof with carbon dioxide gas, cooled to a temperature of from -37.4 to -6.7 degrees Celsius to cause a controlled amount of carbon dioxide to condense on the tobacco. During the process of cooling the tobacco with carbon dioxide the pressure is maintained at up to...

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Bibliographic Details
Main Authors FISCHER EUGENE B, PRASAD RAVI, DOBBS JOSEPH M, NEPOMUCENO JOSE M. G, CHO KWANG KWANG H, CLARKE THOMAS J
Format Patent
LanguageEnglish
Slovak
Published 13.03.2000
Edition7
Subjects
CIGARETTES
CIGARS
HUMAN NECESSITIES
MANUFACTURE OR PREPARATION OF TOBACCO FOR SMOKING ORCHEWING
SMOKERS' REQUISITES
SNUFF
TOBACCO
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Summary:Tobacco is, prior to contacting thereof with carbon dioxide gas, cooled to a temperature of from -37.4 to -6.7 degrees Celsius to cause a controlled amount of carbon dioxide to condense on the tobacco. During the process of cooling the tobacco with carbon dioxide the pressure is maintained at up to 3447 kPa and thereafter the pressure of carbon dioxide gas is increased at 4826 to 6894 kPa, preferably 5170 kPa to 6549 kPa, so as to allow carbon dioxide gas to condense upon the tobacco. The process further includes pre-cooling the tobacco prior to contacting thereof with carbon dioxide gas by subjecting the tobacco to a partial vacuum. The tobacco having an initial OV content of from 15 percent to 19 percent is used but prior to contacting the tobacco with carbon dioxide gas the said tobacco is subjected to a partial vacuum to lower the OV thereof.
Bibliography:Application Number: SK19920001877