| 摘要 |
<p>The method involves conveying a tobacco material (12) through a housing (13), and supplying an extracting medium (14) e.g. liquid such as water, to the housing. The medium is discharged from the housing, and the material is extracted by contacting of the material with the medium during tobacco material-extruding process in an extruder under increased extruding pressure. The increased extruding pressure and increased extruding temperature are produced by mechanical compression of the material in the extruder by a screw conveyor of a screw-type extruding machine (10). An independent claim is also included for an extraction device for a tobacco material.</p> |
