Alternative methods for the manufacture of reconstituted tobacco sheets are additionally known to the skilled person. Throughout this specification, the expression “reconstituted tobacco sheet” is used to refer to a web, ideally with considerably uniform thickness, that may be produced by the rolling or casting of an aqueous slurry or pulp fashioned from tobacco particles by certainly one of several methods known within the art. Suitable by-products include tobacco stems, tobacco stalks, leaf scraps, and tobacco dust produced through the manufacturing process.
In most well-liked embodiments, the first tobacco material is a pre-processed tobacco materials. By “pre-processed tobacco materials” reference is made all through the specification to a tobacco materials produced by man from pure tobacco versus occurring naturally as such. It would due to this fact be desirable to provide an alternate tobacco cut filler having improved filling energy. At the identical time, it would tobacco pipe be fascinating to provide a novel course of for manufacturing tobacco cut filler, whereby the filling energy of the tobacco reduce filler is improved and the production of tobacco dust is decreased. The current invention relates to the manufacturing of tobacco cut filler comprising reconstituted tobacco and to a smoking article formed from a tobacco rod comprising the reduce filler according to the invention.
The reduce width of one such Y-shaped strip corresponds considerably to the space between the ends of the second and third strip parts as measured alongside a course perpendicular to the direction defined by an axis of the primary strip portion. Within the identical Y-shaped strip, the sectional minimize width of each strip portion could instead be measured along a course substantially perpendicular to the axis of each strip portion. In some circumstances, corresponding to where the minimize strip of tobacco material is substantially rectangular , the sectional reduce width and the strip minimize width are the same.
These irregular pieces are supposed to be related in size to tobacco lamina, such that they are often blended with the tobacco lamina and reduce. In explicit, the mix is usually cut into particles having a predetermined reduce width. However, because the reconstituted tobacco sheet is quite randomly ripped into items, the tobacco fibres are typically not aligned in a uniform course. Tobacco rods had been prepared from a tobacco cut filler using tobacco particles reduce in accordance with the specifications of Figures 1 1 and 12. In particular, a first couple of blends had been used, that contained eighty five percent by weight of pure tobacco particles and 15 p.c by weight of reconstituted tobacco particles reduce in accordance with specifications of Figures 1 1 and 12, respectively.
In addition, a second couple of blends was used, that contained 70 % by weight of natural tobacco particles and 30 percent by weight of reconstituted tobacco particles minimize in accordance with the specs of Figures 1 1 and 12, respectively. Thus, the minimize width of an individual cut strip is taken on the level along the length of the strip that yields the biggest cross-sectional space. Further, the filling energy Filling cut tobacco of the shredded first tobacco materials may be maximised by deciding on a suitable first cut specification. This ends in an improved filling energy of the reduce filler as an entire, notably when the first tobacco materials is blended with no much less than another tobacco materials.
A tobacco cut filler in accordance with any one of the preceding claims, whereby the primary tobacco material is shredded into strips having a cut length from about 5 mm to about 60 mm. A tobacco cut filler in accordance with any one of claims 2 to four, whereby the second tobacco materials is a pure tobacco leaf material. An angle of ninety levels was thought-about to be undesirable, in that it might lead primarily to a shape quite similar to the shape of Figure 6, and so an angle of 60 levels was chosen for the “V” components. Further, the tactic ideally includes the step of blending the reduce first tobacco material and the reduce second tobacco material.
Without wishing to be certain to concept, it will be appreciated that during any slicing, rolling or extruding operation, the tobacco fibres usually align in a given direction, which may thus be recognized as the longitudinal path of the tobacco material. The “reduce length” of a cut strip of tobacco material for incorporation in minimize fillers according to the present invention may subsequently be measured alongside the principle course of fibre alignment, which usually corresponds to the longitudinal path. Thus, the cut length of a person minimize strip could be precisely measured using a conventional measuring device underneath a microscope. In a conventional process, reconstituted tobacco or tobacco stem material or both are usually blended with threshed tobacco lamina to undergo a series of treatments, such as conditioning and drying. To this purpose, a reconstituted tobacco sheet is usually ripped into randomly formed sheet-like pieces having a non-uniform dimension, usually of several sq. centimetres.