Because of the reduced tobacco fibre size inside the reconstituted tobacco materials, publicity to the identical therapies as tobacco lamina could degrade, to some extent, the reconstituted tobacco. By method of instance, throughout drying, the moisture content of reconstituted tobacco is significantly decreased, leading to shrinkage of the tobacco particles forming the reconstituted tobacco sheet. Additionally, the chopping techniques typically employed to transform the tobacco material blend into filler might result in some lamination and compression of the reconstituted tobacco material tobacco pipe. All this causes a discount within the filling energy of the handled reconstituted tobacco and, accordingly, of the tobacco cut filler as a complete. A mode of a discrete chance distribution, as is the case with the reduce length distribution among the cut strips of the first tobacco material is a worth at which the chance mass function takes a maximum value. Thus, in a unimodal distribution, the likelihood mass perform only has one most worth, and that corresponds to the most likely worth of cut size .
More ideally, the first tobacco material is shredded into strips having a cut width of no less than about zero.25 mm. Even more preferably, the first tobacco material is shredded into strips having a minimize width of a minimal of about 0.three mm. In addition, or in its place, the primary tobacco material is ideally shredded into strips having a reduce width of lower than about 1 mm.
By way of instance, tobacco stems may be ground to a fine powder and then mixed with tobacco mud, guar gum, and water to kind an aqueous slurry. This aqueous slurry could also be cast and dried to kind a reconstituted tobacco sheet. As another, appropriate tobacco materials could additionally be blended in an agitated tank with water to acquire Fashion tobacco pipe a pulp. This web is fed onwards to a press, where the surplus water is squeezed out of the online. Figure thirteen illustrates an apparatus 30 for the manufacture of a tobacco reduce filler in accordance with the current invention. A internet 32 of reconstituted tobacco having a thickness T is unwound off a bobbin 34 and fed to a shredding device 36.
Within a cut strip of tobacco material, the sectional reduce width may be the substantially similar for all the strip parts. While this can be preferable, the sectional minimize width can also vary from one strip portion to a different. Typically, prior to being minimize, a tobacco material may undergo other mechanical operations, similar to rolling or extrusion.
In the embodiment of Figure 10, the 2 straight parts are substantially perpendicular. The minimize strip of Figure 12 may be considered comprising three V-shaped buildings of the sort illustrated in Figure 1 , whereby adjacent V-shaped structures are related by the ends of respective straight parts. In the embodiments of both Figures 10 and 12 the sectional reduce width within all the constructions forming the minimize strips is considerably fixed. A tobacco cut filler according to any one of many previous claims, whereby the cut size distribution among the many cut strips of the primary tobacco materials is preferably unimodal. By way of instance, the minimize strip of Figure 9 includes a primary Y-shaped structure together with a first branching node from which a second Y-shaped construction branches off.
For example, a bimodal distribution could correspond effectively to 2 teams of reduce strips having completely different common minimize lengths , one group being bigger than the opposite. Preferably, the primary tobacco material is shredded into strips from a sheet materials having a thickness of a minimal of about 0.05 mm. More ideally, the primary tobacco materials is shredded into strips from a sheet material having a thickness of at least about zero.1 mm.
In apply, one such minimize strip could additionally be described as approximately wave-shaped or zigzag-shaped. Accordingly, geometric parameters similar to the peak amplitude, peak-to-peak amplitude, interval of a sine wave may be used to describe the form of 1 such cut strips. A tobacco minimize filler includes a primary tobacco materials cut in accordance with a primary Filling cut tobacco cut specification, whereby the first minimize specification sets no much less than predetermined first cut width and first reduce length. A tobacco reduce filler in accordance with any one of many previous claims, whereby the primary tobacco material is shredded into strips having a minimize width from about zero.2 mm to about 1 mm.