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| Study on the Differences in Moisture Absorption-Desorption Behaviors Between Reconstituted Tobacco Sheets Prepared by Natural Tobacco Leaves via Papermaking Method |
| Received:July 16, 2024 |
| DOI：10.11980/j.issn.0254-508X.2025.01.011 |
| Key Words:reconstituted tobacco sheet natural tobacco leaf isothermal moisture absorption moisture desorption kinetics environmental temperature and humidity |
| Fund Project:河北中烟工业有限责任公司科技项目（HBZY2023A040，AW201911）。 |
| Author Name | Affiliation | Postcode | | LI Zijuan | Zhangjiakou Cigarette Factory of China Tobacco Hebei Industry Co., Ltd., Zhangjiakou, Hebei Province, 075000 | 075000 | | FENG Dongmin | College of Tobacco Science and Engineering, Zhengzhou University of Light Industry, Zhengzhou, He’nan Province, 450002 | 450002 | | CHEN Jiaojiao | Zhangjiakou Cigarette Factory of China Tobacco Hebei Industry Co., Ltd., Zhangjiakou, Hebei Province, 075000 | 075000 | | ZHAO Haiyang | Zhangjiakou Cigarette Factory of China Tobacco Hebei Industry Co., Ltd., Zhangjiakou, Hebei Province, 075000 | 075000 | | LIU Yubin | China Tobacco Hebei Industrial Co., Ltd., Shijiazhuang, Hebei Province, 050051 | 050051 | | SUN Shuo | Zhangjiakou Cigarette Factory of China Tobacco Hebei Industry Co., Ltd., Zhangjiakou, Hebei Province, 075000 | 075000 | | LYU Xuan | Zhangjiakou Cigarette Factory of China Tobacco Hebei Industry Co., Ltd., Zhangjiakou, Hebei Province, 075000 | 075000 | | MA Yanling | Zhangjiakou Cigarette Factory of China Tobacco Hebei Industry Co., Ltd., Zhangjiakou, Hebei Province, 075000 | 075000 | | GAO Yang | Zhangjiakou Cigarette Factory of China Tobacco Hebei Industry Co., Ltd., Zhangjiakou, Hebei Province, 075000 | 075000 | | LI Yixin | College of Tobacco Science and Engineering, Zhengzhou University of Light Industry, Zhengzhou, He’nan Province, 450002 | 450002 | | LI Xiao* | College of Tobacco Science and Engineering, Zhengzhou University of Light Industry, Zhengzhou, He’nan Province, 450002 | 450002 |
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| Abstract:Various models were used to fit the isothermal moisture absorption-desorption behaviors of natural tobacco leaves and reconstituted tobacco sheets under the conditions of cut tobacco processing production line with the help of the optimum isothermal moisture absorption model and desorption kinetics model. The findings showed that the DLP model exhibited the best fitting performance for the isothermal moisture absorption behaviors of natural tobacco leaves and reconstituted tobacco sheets， and the isothermal hygroscopic curves were of type Ⅲ and type Ⅱ respectively， indicating significant differences. The moisture absorption hysteresis in reconstituted tobacco sheets was not apparent， when the relative humidity in natural tobacco leaves was low， moisture absorption hysteresis was evident. Page model provided the best fitting for the desiccation process of natural tobacco leaves and reconstituted tobacco sheets. In the early drying stages， higher temperatures accelerated the moisture desorption rate of tobacco leaves. While in the late drying stages， increasing temperature led to a slower moisture desorption rate. Under the identical conditions， the water loss rate in reconstituted tobacco sheets exceeded that of natural tobacco leaves. It was verified that calculated values from the Page model and measured values had a relative error of moisture content within 5%， which could better predict the moisture desorption behaviors of natural tobacco leaves and reconstituted tobacco in actual production settings. |
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