基本信息:
- 专利标题： Tobacco expansion method
- 专利标题（中）：烟草扩张方法
- 申请号：EP96111020.2 申请日：1996-07-09
- 公开(公告)号：EP0756829A2 公开(公告)日：1997-02-05
- 发明人： Wagner, John R. , Smith, J.E. Howard
- 申请人： SCW, INC.
- 申请人地址： Suite 505, Box 22, 2007 Yanceyville Street Greensboro, North Carolina 27405 US
- 专利权人： SCW, INC.
- 当前专利权人： SCW, INC.
- 当前专利权人地址： Suite 505, Box 22, 2007 Yanceyville Street Greensboro, North Carolina 27405 US
- 代理机构： Keller, Günter, Dr.
- 优先权： US508441 19950728
- 主分类号： A24B3/18
- IPC分类号： A24B3/18
摘要：
A tobacco expansion method is provided whereby cured tobacco is first moistened with a humectant solution, as is conventional in the industry, to increase the resident liquids thereof. Next, the prepared tobacco in shredded form is placed in a sealed chamber and the chamber evacuated to vaporize a portion of the resident liquids. Next, ethyl alcohol vapor is allowed to enter the pressure chamber below 70 mm (Hg) absolute to prevent a water-ethyl alcohol azeotrope from forming. Thereafter, a hydrocarbon vapor, such as n-pentane vapor, is directed into the chamber and the pressure restored to atmospheric. The n-pentane vapor diffuses into the cellular structure of the tobacco with the assistance of the ethyl alcohol, whereafter the tobacco is heated and the n-pentane and ethyl alcohol acts as a propellant to expand the tobacco.
摘要（中）：
提供了一种烟草膨胀方法，其中如工业上常规的那样，首先将经过烘烤的烟草用保湿剂溶液润湿以增加其驻留液体。 接下来，将制成的碎烟丝状物放置在密封室中，抽空该室以蒸发一部分驻留液体。 接下来，允许乙醇蒸气进入压力室低于70mm（Hg）绝对值以防止形成水 - 乙醇共沸物。 此后，将碳氢化合物蒸气如正戊烷蒸气引入室中，压力恢复到大气压。 正戊烷蒸气在乙醇的帮助下扩散到烟草的细胞结构中，然后加热烟草并且正戊烷和乙醇充当推进剂以扩展烟草。
公开/授权文献:
- EP0756829B1 Tobacco expansion method 公开/授权日：2002-09-04
IPC结构图谱:
| A | 人类生活必需 |
| --A24 | 烟草；雪茄烟；纸烟；吸烟者用品 |
| ----A24B | 吸烟或嚼烟的制造或制备；烟草；鼻烟 |
| ------A24B3/00 | 在烟厂内制备烟草 |
| --------A24B3/18 | .烟叶的其他处理，例如膨化、卷曲、清洁 |