Suitable pure tobacco leaf materials embody tobacco lamina, tobacco stem material and tobacco stalk materials. The pure tobacco leaf materials used as the second tobacco material might embrace any sort of tobacco leaf, including for example Virginia tobacco leaf, Burley tobacco leaf, Oriental tobacco leaf, flue-cured tobacco leaf, or a combination thereof. A tobacco reduce filler according to the present invention contains a first tobacco materials reduce in accordance with a primary cut specification, wherein the first reduce specification sets no much less than predetermined first cut width and first minimize size. The time period “filling power” is used to describe the volume of house taken up by a given weight or mass of a tobacco material. The larger the filling energy of a tobacco material, the decrease the load of the fabric required to fill a tobacco rod of standard dimensions.
More ideally, the primary tobacco material is shredded into strips having a minimize width of less than about zero.ninety five mm. Even extra preferably, the first tobacco materials is shredded into strips having a minimize width of lower than about 0.9 mm. In preferred embodiments, the primary tobacco material is shredded into strips having a minimize width from about 0.2 mm to about 1 mm. Preferably, the second tobacco material is a natural tobacco leaf materials.
More ideally, the first tobacco material is shredded into strips having a reduce width of at least about 0.25 mm. Even extra preferably, the primary tobacco materials is shredded into strips having a reduce width of a minimum tobacco pipe of about 0.three mm. In addition, or in its place, the first tobacco material is ideally shredded into strips having a minimize width of less than about 1 mm.
A tobacco reduce filler in accordance with claim 1 or 2, wherein the primary tobacco materials is a pre- processed tobacco material. In a third experiment, the cut specification no. 10 was barely modified with a view to bettering the resistance of the particles to the stresses involved by the cigarette-making process. In specific, there was concern that through the cigarette-making process the tobacco particle could be uncovered to high tensions and frictions which might cause particles prepared in accordance with the minimize specification no. 10 to break. This might have reduced the benefit coming from the V-shape and proven by the CCV measurements described above. Figure 13 depicts a schematic view of an apparatus for forming a tobacco cut filler in accordance with the current invention. Figures depict several examples of particularly shapes into which tobacco materials for forming a reduce filler in accordance with the current invention could additionally be minimize.
In the embodiment of Figure 10, the 2 straight elements are considerably perpendicular. The cut strip of Figure 12 could also be thought to be comprising three V-shaped buildings of the type illustrated in Figure 1 , whereby adjoining V-shaped structures are related by the ends of respective straight elements. In the embodiments of both Figures 10 and 12 the sectional reduce width within all of the constructions forming the reduce strips is substantially Fashion tobacco pipe fixed. A tobacco minimize filler in accordance with any one of the previous claims, wherein the reduce size distribution among the many minimize strips of the first tobacco materials is ideally unimodal. By method of example, the cut strip of Figure 9 comprises a primary Y-shaped structure including a first branching node from which a second Y-shaped structure branches off.
Further, the second Y-shaped structure includes a second branching node from which an oblong construction branches off. In the embodiment of Figure 1 1 , the reduce strip comprises a primary Y-shaped construction together with a primary branching node from which a second Y-shaped structure branches off. Further, the second Y-shaped structure comprises a second branching node from which a 3rd Y-shaped structure branches off.
Within a cut strip of tobacco material, the sectional minimize width could be the considerably similar for all of the strip portions. While this might be preferable, the sectional minimize width may differ from one strip portion to a different. Typically, prior to being reduce, a tobacco material could bear different mechanical operations, similar to rolling or extrusion.
The time period “reduce specification” is used throughout the specification to refer to the varied geometric parameters characterising the strips obtained by subjecting a tobacco material to a cutting operation. Thus, in accordance to a given “cut specification”, a tobacco material shall be reduce or shredded into strips having a predetermined cut width, reduce size, reduce form and so forth. Further, it will be desirable to offer one such improved course of that enables for a better control of the shape, size and properties of the reconstituted tobacco matter forming part of the minimize filler. At the same time, it would be fascinating to provide one such process that does not require any main modification of the traditional apparatus and facilities used within the main treatment of tobacco.
In preferred embodiments, the primary tobacco materials is shredded into strips from a sheet materials having a thickness from about 0.05 mm to about 1 mm. Even more ideally, the first tobacco materials is shredded into strips from a sheet materials having a thickness from about zero.1 mm to about 0.3 mm, most ideally from a sheet material having a thickness of about zero.2 mm. A tobacco cut filler in accordance with any certainly one of claims 1 to 9, whereby the first tobacco materials is shredded into strips every comprising at least a first strip construction comprising a branching node from which an extra strip construction branches off, forming an angle with the first strip construction. Figures 10 and 12 show two examples of cut strips including one or more V-shaped structure. Each V structure includes two substantially straight parts forming an angle.
In turn, the third Y-shaped structure includes a third branching node from which an oblong construction branches off. In the embodiments of both Figures 9 and 1 1 the sectional cut width within all the constructions forming the cut strips is considerably fixed. By way of example, in a Y-shaped strip it is attainable to determine a primary strip portion extending along a first direction and a second and third strip parts extending from the primary strip parts alongside diverging directions, so that they form an angle.