| 摘要 |
A method for increasing the filling power of sheet or shredded reconstituted tobacco which is normally not susceptible to conventional expansion techniques is provided. In the practice of the method reconstituted tobacco having a uniform moisture content of 15-50 weight percent is heated to a temperature above about 90 DEG C. for a period of time beyond that required to drive off substantially all moisture and then is reordered. Heating may be effected in a convection or microwave oven or a drying tower. By means of the method, the tobacco is stiffened whereby a substantially irreversible filling power increase is effected. |
