A tobacco reduce filler according to any one of the preceding claims, whereby the primary tobacco materials is a reconstituted tobacco sheet. Preferably, the cut filler has a filling energy of no much less than about three.5 cubic centimetres per gram at a reference moisture worth of 12.5 p.c oven volatiles. More ideally, the reduce filler has a filling power of at least about 4 cubic centimetres per gram at a reference moisture value of 12.5 percent oven volatiles. In addition, or as an alternative, the cut filler ideally has a filling power of lower than about eight cubic centimetres per gram at a reference moisture worth of 12.5 percent oven volatiles.
Figures 1 to 12 reveals cut strips of a primary tobacco material for incorporation in a minimize filler in accordance with the present invention. The strips have been reduce from a sheet of reconstituted tobacco having a thickness from about zero.05 mm to about 1 mm in accordance with a primary minimize specification, whereby the primary reduce specification units a predetermined first minimize width CW1 and a predetermined first cut length CL1 . In addition, the first reduce specification may additional set a predetermined first sectional cut width SCW1.
The cut width of 1 such Y-shaped strip corresponds substantially to the distance between the ends of the second and third strip parts as measured along a direction perpendicular to the path defined by an axis of the first strip portion. Within the identical Y-shaped strip, the sectional reduce width of every strip portion might instead be measured along a path substantially perpendicular to the axis of each strip portion. In some cases, corresponding to where the reduce strip of tobacco material is considerably rectangular , the sectional minimize width and the strip cut width are the identical.
By distinction, in a multimodal distribution, the likelihood mass perform has a number of maxima, which signifies that among the reduce strips of the first tobacco materials there are multiple values of cut size that happen most frequently. In the context of the current specification, a distribution having a number of local maxima is considered multimodal. It shall be appreciated that the completely different modes in a multimodal distribution may have completely different frequencies, such that, among the many minimize strips of the first tobacco material, one modal worth of cut length will occur more regularly than one other modal worth.
Even more ideally, the primary tobacco material is shredded into strips from a sheet material having a thickness of at least about zero.2 mm. In addition, or as an alternative, the first tobacco materials is ideally shredded into strips from a sheet material having a thickness of lower than about 1 mm. More ideally, the primary tobacco materials is shredded into strips from a sheet materials having a thickness of lower than about zero.ninety five mm. Even extra ideally, the first tobacco materials is shredded into strips from a sheet materials having a thickness of less than about 0.eighty five mm.
Should one such particle break at a location in the central V-shaped portion, the two resulting elements of the particles would still be effectively V-shaped. The highest CCV values have been obtained for minimize specification no. 3, which considerably corresponds to particles having a Y-shape. However, it was found that when particles were produced from the identical sheet of reconstituted tobacco based on reduce specification no. 3 are produced, a major fraction of the tobacco materials went to waste. These correspond to the shapes illustrated in Figures 9 and 10, respectively, for which the values of CCV listed within the following Table 3 had been measured. Tobacco minimize fillers in accordance with the present invention could also be ready by a method comprising offering a primary tobacco material and slicing the primary tobacco materials in accordance with a first reduce specification setting at least predetermined first reduce width and first reduce length. Tobacco cut filler in accordance with the current invention may be incorporated into a variety of smoking articles.
In addition, a second couple of blends was used, that contained 70 % by weight of pure tobacco particles and 30 percent by weight of reconstituted tobacco particles reduce in accordance with the specifications of Figures 1 1 and 12, respectively. Thus, the minimize width of an individual minimize strip is taken on the level alongside the length of the strip that yields the biggest cross-sectional area. Further, the filling power Filling cut tobacco of the shredded first tobacco material could be maximised by choosing an acceptable first reduce specification. This ends in an improved filling energy of the minimize filler as an entire, particularly when the first tobacco material is mixed with at least another tobacco materials.
Without wishing to be bound to principle, it will be appreciated that in any chopping, rolling or extruding operation, the tobacco fibres usually align in a given path, which can thus be recognized as the longitudinal course of the tobacco materials. The “minimize size” of a reduce strip of tobacco materials for incorporation in reduce fillers in accordance with the present invention may therefore be measured alongside the main course of fibre alignment, which usually corresponds to the longitudinal path. Thus, the minimize length of a person reduce strip could be precisely measured utilizing a standard measuring device beneath a microscope. In a conventional process, reconstituted tobacco or tobacco stem material or both are usually blended with threshed tobacco lamina to bear a series of treatments, corresponding to conditioning and drying. To this objective, a reconstituted tobacco sheet is often ripped into randomly shaped sheet-like items having a non-uniform size, typically of a quantity of sq. centimetres.