SWOLLEN TOBACCO MATERIAL MANUFACTURING METHOD

摘要

PURPOSE: A swollen tobacco material manufacturing method can impregnate carbon dioxide with tobacco material. and provides the method cooling the tobacco material by the evaporation of liquid carbon dioxide. CONSTITUTION: The tobacco material is cooled the saturation temperature corresponding to impregnation pressure. The liquid carbon dioxide (21) is supplied from the upper side of the tobacco material TM via a sintered metal plate (13) with the impregnation pressure retained, the interior of the pressure vessel (11) is filled with carbon dioxide gas produced by the evaporation of liquid carbon dioxide, the tobacco material is impregnated with carbon dioxide by cooling the tobacco material with evaporation latentheat, The swollen tobacco material is attained by heat swell the carbon dioxide-impregnated tobacco material.