Application of Gas Adsorption Technology in Tobacco Industry
Tobacco physical moisture retention refers to the ability of tobacco leaves to regulate the inhibition of moisture loss when tobacco is exposed to low moisture conditions.
The equilibrium moisture content is a common index used in the tobacco industry to evaluate the physical moistening properties of tobacco. The physical moistening property of tobacco depends largely on its physical structure. From the physical structure, tobacco is mostly a porous material containing a large number of capillaries, and the pore structure not only affects the amount of water condensed inside tobacco but also affects the diffusion characteristics of water inside tobacco; the specific surface area, true density, pore capacity and pore size distribution of tobacco are important indicators of its physical structure.
The pores are large in specific surface area and can strongly absorb water from the air. In addition, some researchers have inferred the moisture absorption curve of tobacco based on its pore size distribution; all of the above provide a theoretical basis for a comprehensive understanding of the self-moisture retention properties of tobacco.
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