The values of filling energy are expressed in terms of corrected cylinder quantity which is the cylinder volume of the tobacco materials at a reference moisture level of 12.5 p.c oven volatiles. The cylinder quantity could additionally be decided utilizing a Borgwaldt densimeter DD60 or DD60A type tobacco pipe fitted with a measuring head for minimize tobacco and a tobacco cylinder container. The term “sinusoidal” is used to explain a minimize strip of tobacco material formed considerably like a portion of a sine wave.
These irregular items are intended to be comparable in size to tobacco lamina, such that they can be blended with the tobacco lamina and minimize. In specific, the mix is often cut into particles having a predetermined reduce width. However, because the reconstituted tobacco sheet is somewhat randomly ripped into pieces, the tobacco fibres are typically not aligned in a uniform direction. Tobacco rods had been prepared from a tobacco cut filler utilizing tobacco particles reduce in accordance with the specifications of Figures 1 1 and 12. In explicit, a first couple of blends have been used, that contained eighty five percent by weight of natural tobacco particles and 15 p.c by weight of reconstituted tobacco particles reduce in accordance with specifications of Figures 1 1 and 12, respectively.
The reduce width of 1 such Y-shaped strip corresponds substantially 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 same Y-shaped strip, the sectional reduce width of every strip portion could instead be measured alongside a direction substantially perpendicular to the axis of each strip portion. In some cases, corresponding to where the cut strip of tobacco materials is substantially rectangular , the sectional reduce width and the strip cut width are the same.
Experiments have been carried out so as to assess the impact of different shapes and cut specs to key parameters of tobacco cut filler particles, such as the filling energy. In more detail, Figure 1 shows a zigzag-shaped strip and Figure 2 exhibits a wave-shaped strip. Where the reduce strip is zigzag-shaped or wave- shaped, it is possible to measure a wave size of the minimize strip, which considerably corresponds to the strip minimize length divided by the number of repetitions of the zigzag or wave. For instance , in the cut strip of Figure 1 the zigzag is repeated 10 times. Preferably, a wave length of the sinusoidal shape is from about 1 mm to about 15 mm, extra preferably from about 2 mm to about 12 mm, even more preferably from 4 mm to 10 mm. Preferably, the tobacco reduce filler further includes a second tobacco material reduce in accordance with a second cut specification differing from the primary minimize specification for a minimum of one of minimize size and minimize width.
In most popular embodiments, the primary tobacco material is a pre-processed tobacco material. By “pre-processed tobacco material” reference is made all through the specification to a tobacco materials produced by man from natural tobacco versus occurring naturally as such. It would due to this fact be desirable to offer another tobacco minimize filler having improved filling energy. At the identical time, it might be desirable to supply a novel course of for manufacturing tobacco reduce filler, whereby the filling energy of the tobacco cut filler is improved and the production of tobacco dust is decreased. The current invention pertains to the production of tobacco reduce filler comprising reconstituted tobacco and to a smoking article formed from a tobacco rod comprising the minimize filler in accordance with the invention.
The expressions “ultimate reduce width” and “last cut size” are used herein to describe the minimize width and cut length of a tobacco materials as found in a tobacco cut filler used in a tobacco product. The technique might further comprise a step of conditioning the first tobacco materials prior to cutting the first tobacco materials. Further, the tactic may comprise a step of controlling the moisture content of the cut filler by adjusting the moisture content material of the first tobacco material.