In addition, a second couple of blends was used, that contained 70 p.c by weight of natural tobacco particles and 30 % by weight of reconstituted tobacco particles cut in accordance with the specs of Figures 1 1 and 12, respectively. Thus, the reduce width of an individual cut strip is taken at the point along the length of the strip that yields the largest cross-sectional space. Further, the filling energy tobacco pipe of the shredded first tobacco materials could be maximised by choosing an appropriate first cut specification. This ends in an improved filling power of the reduce filler as a complete, particularly when the primary tobacco material is mixed with a minimum of one other tobacco materials.
In preferred embodiments, the primary tobacco materials is a pre-processed tobacco materials. By “pre-processed tobacco material” reference is made all through the specification to a tobacco materials produced by man from pure tobacco as opposed to occurring naturally as such. It would therefore be desirable to provide an alternative tobacco cut filler having improved filling power. At the identical time, it might be desirable to offer a novel process for manufacturing tobacco minimize filler, whereby the filling power of the tobacco cut filler is improved and the production of tobacco mud is reduced. The present invention pertains to the production of tobacco minimize filler comprising reconstituted tobacco and to a smoking article fashioned from a tobacco rod comprising the minimize filler in accordance with the invention.
The yield of flat rolled stem which may be used directly as filler is elevated, and the typical stem size and thus the average size of minimize filler from stem is increased. A tobacco reduce filler in accordance with any one of the preceding claims having a filling power of at least 3.5 cubic centimetres per gram at a reference moisture worth Filling cut tobacco of 12.5 % oven volatiles. Accordingly, tobacco particles have been ready from the identical sheet of reconstituted tobacco according to the reduce specification illustrated in Figure 12, whereby the cut width SCW1 is of zero.9 millimetres, the reduce size CL1 is of four.ninety four millimetres and the global width CW1 is of 12.50 millimetres.
A tobacco minimize filler based on any one of many preceding claims, whereby the first tobacco material is shredded into strips having a reduce size from about 5 mm to about 60 mm. A tobacco minimize filler according to any one of claims 2 to 4, wherein the second tobacco material is a natural tobacco leaf material. An angle of ninety degrees was considered to be undesirable, in that it might lead essentially to a form quite just like the form of Figure 6, and so an angle of 60 levels was chosen for the “V” elements. Further, the strategy ideally comprises the step of blending the reduce first tobacco materials and the minimize second tobacco material.
Alternative strategies for the manufacture of reconstituted tobacco sheets are additionally recognized to the skilled individual. Throughout this specification, the expression “reconstituted tobacco sheet” is used to discuss with a web, ideally with substantially uniform thickness, which could be produced by the rolling or casting of an aqueous slurry or pulp formed Fashion tobacco pipe from tobacco particles by certainly one of several methods recognized in the artwork. Suitable by-products include tobacco stems, tobacco stalks, leaf scraps, and tobacco dust produced in the course of the manufacturing process.
Experiments were carried out to have the ability to assess the influence of various shapes and cut specifications to key parameters of tobacco cut filler particles, such as the filling power. In more element, Figure 1 reveals a zigzag-shaped strip and Figure 2 exhibits a wave-shaped strip. Where the minimize strip is zigzag-shaped or wave- formed, it is potential to measure a wave length of the minimize strip, which substantially corresponds to the strip reduce size divided by the number of repetitions of the zigzag or wave. For instance, within the cut strip of Figure 1 the zigzag is repeated 10 times. Preferably, a wave size of the sinusoidal shape is from about 1 mm to about 15 mm, extra ideally from about 2 mm to about 12 mm, even more ideally from four mm to 10 mm. Preferably, the tobacco cut filler further includes a second tobacco material reduce in accordance with a second cut specification differing from the primary cut specification for a minimum of certainly one of cut length and minimize width.
More ideally, the primary tobacco materials is shredded into strips having a cut width of at least about 0.25 mm. Even more preferably, the first tobacco material is shredded into strips having a cut width of no much less than about zero.three mm. In addition, or as an alternative, the first tobacco material is preferably shredded into strips having a cut width of less than about 1 mm.
By method of example, tobacco stems may be ground to a fine powder after which blended with tobacco mud, guar gum, and water to form an aqueous slurry. This aqueous slurry could additionally be cast and dried to form a reconstituted tobacco sheet. As an alternate, suitable tobacco supplies may be combined in an agitated tank with water to acquire a pulp. This net is fed onwards to a press, the place the surplus water is squeezed out of the online. Figure thirteen illustrates an apparatus 30 for the manufacture of a tobacco cut filler in accordance with the present invention. A web 32 of reconstituted tobacco having a thickness T is unwound off a bobbin 34 and fed to a shredding device 36.