Abstract:
To determine the suitable packing density in cases during off-site delivery of cut tobacco, the bulk density and deposition density of blended cut tobacco and its constituents under different conditions were measured. The variations of quality and making quality of cut tobacco at different packing densities in cases were comparatively analyzed, and the results showed that: 1) When the packing density of cut tobacco was less than the vibrated deposition density, the effects on the filling value and elasticity of the off-site delivered blended cut tobacco were minor. 2) With the increase of the packing density, before and after the delivery, the changes in moisture contents in cut tobacco decreased generally, the changes in filling values increased generally, the changes of integral strand proportions and short strand proportions decreased first and then increased; loss of tobacco from the ends of cigarette decreased first and then increased, the dust contents in manufactured cigarettes increased generally, and the consistency of sensory quality was improved to some extents. 3) Cut tobacco packed in cases suffered sagging during delivery, the inflection point with large changes in the quality indexes and consumption was mostly at the vibrated deposition density. In order to coordinate the quality and cost of off-site delivery of cut tobacco, the packing density should not be higher than the vibrated deposition density of cut tobacco.