公开(公告)号：US3753440A

公开(公告)日：1973-08-21

申请号：US3753440D

申请日：1972-03-07

申请人： REYNOLDS TOBACCO CO R

发明人： ASHBURN J

IPC分类号： A24B3/18

CPC分类号： A24B3/182 ,  Y10S131/901 ,  Y10S131/902

摘要： The filling capacity of tobacco is increased by establishing a body of water-moistened tobacco in a bed in a hermetically sealed chamber. A partial vacuum is applied to the bed to remove occluded air and the tobacco is contacted with vapors of a compound having an atmospheric pressure boiling point between about -10 and +80* C., the temperature of the tobacco during contact being maintained at or below the boiling point of the compound at the prevailing pressure, whereby the tobacco is impregnated with the compound in the liquid state by condensation. The impregnated tobacco is then equilibrated, and a drying gas at a temperature between about 40* and 80* C. is passed through the bed to remove a portion of the moisture and the impregnating compound as vapors. A hot gas at a temperature above about 90* C. and more than about 18* C. above the boiling point of the compound is then passed through the tobacco to expand it.

摘要翻译： 通过在气密密封的室中的床中建立一组水分润湿的烟草来增加烟草的填充能力。 将部分真空施加到床上以除去堵塞的空气，并使烟草与大气压沸点在约-10和+ 80℃之间的化合物的蒸气接触，烟草在接触期间的温度保持在或 低于化合物在主要压力下的沸点，由此通过冷凝将烟草浸渍在液态的化合物中。 然后将浸渍的烟草平衡，并且将在约40℃和80℃之间的温度下的干燥气体通过床以除去一部分水分和浸渍化合物作为蒸气。 然后将高于约90℃并高于化合物沸点超过约18℃的热气体通过烟草以使其膨胀。