담배종류별 흡습 및 방습 특성

Moisture Sorption and Desorption Characteristics of Tobacco Types.

  • 김용옥 (KT&G 중앙연구원 담배 연구소) ;
  • 정한주 (KT&G 중앙연구원 담배 연구소) ;
  • 공판임 (KT&G 중앙연구원 담배 연구소) ;
  • 장기철 (KT&G 중앙연구원 담배 연구소)
  • 발행 : 2004.06.01

초록

This study was carried out to investigate moisture sorption and desorption characteristics followed by tobacco type. Experiments were performed at various temperature(5, 15, 25, 40 $^{\circ}C$) and relative humidity range (11~84 %) controlled by saturated salt solution. Regression equation was obtained to predict equilibrium moisture according to various relative humidity, temperature and tobacco types. The obtained regression equation showed high $R^2$(above 0.95) and predicted accurate equilibrium moisture. Equilibrium moisture contents declines in the following order when a relative humidity is 50 % or above: expanded stem, flue-cured, expanded tobacco, reconstituted tobacco, USA flue-cured, orient, burley. To maintain 13 % moisture of each tobacco type in the range of 5~40 $^{\circ}C$ it is recommendable to control relative humidity 49~56 % for expanded stem, 50~57 % for flue-cured, 54~61 % for USA flue-cured, 56~60 % for reconstituted tobacco, 57~62 % for expanded tobacco, 58~64 % for orient and 58~65 % for burley, respectively. It means that the relative humidity of each tobacco type should be differently controlled to maintain the same moisture under the same temperature. In the range of 5~25 $^{\circ}C$, the lower temperature showed the higher equilibrium moisture content.

키워드

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