HUE035682T2 - Reconstituted tobacco material and method and apparatus for the production thereof - Google Patents

Abstract

A process for recovering and recycling tobacco dust comprises the steps of:
• mixing tobacco dust with a binder to provide a paste;
• extruding the paste through a die to provide an elongate extrudate;
• slicing the extrudate at one or more discrete locations along its length to provide a plurality of extrudate portions; and
• pressing at least one extrudate portion between two opposed surfaces, so as to flatten it.

Description

Description associated with known processes. In particular, it is de sirable that the process should produce reconstituted to-

Field of the invention bacco material that has similar handling and processing properties to natural tobacco lamina (that is, tobacco [0001] The present invention relates to reconstituted 5 leaf). When incorporated into a smoking article, the retobacco material and methods and apparatus for the pro- constituted tobacco material should not have any adduction thereof. In particular, the present invention re- verse effect on the smoking characteristics of the smok- lates to reconstituted tobacco material formed from to- ing article. bacco dust and that is suitable for combination with nat ural tobacco lamina. 10 Summary of the invention

Background to the invention [0008] Therefore, at its most general, the present in vention may provide a process in which tobacco dust is [0002] Tobacco dust (also known as tobacco fines) is mixed with a binder to provide a paste, and the paste is a common by-product of the processing of natural tobac- 15 then sliced and flattened to provide planar portions, e.g. co lamina to provide smoking articles such as cigarettes. flakes, of reconstituted tobacco material. A planar portion

During processing, e.g. cutting or handling, part of the of reconstituted tobacco provided in this manner is char- tobacco lamina inevitably fragments to form dust, and acterised in that it has a maximum diameter between this process may represent a significant economic loss 10-20 mm and a maximum thickness between 0.2-0.4 for the cigarette manufacturer. 20 mm. Such flakes may have similar handling and process- [0003] Therefore, attempts have been made to re-use ing properties to natural tobacco leaf, with the result that the tobacco dust. For example, US 2008/0196731 de- they may be processed alongside natural tobacco leaf scribes a process in which tobacco fines are mechani- and blended with it to provide smoking articles such as cally pressed into tobacco material, so as to adhere the cigarettes or cigars. fines to the tobacco material and allow for further 25 [0009] In a first aspect, the present invention may proprocessing to form a smoking article. This method may vide a process for recovering and recycling tobacco dust, result in a material which is non-homogenous, with the comprising the steps of: possibility that during subsequent processing the tobac co fines become detached from the main body of the · mixing tobacco dust with a binder to provide a paste material. 30 · extruding the paste through a die to provide an ex- [0004] EP 0404579 describes a method of making a trudate; smoking article rod, in which particulate tobacco and · slicing the extrudate at one or more discrete loca- binderare mixed and extruded to provide a rod-form ex- tions along its length to provide a plurality of extru- trudate. The rod may then be wrapped in a conventional date portions; cigarette paper, for sale to the consumer. This process 35 · pressing at least one extrudate portion between two implies a radical change to the way in which cigarettes opposed surfaces, so as to flatten it to provide a pla- are manufactured, and as such there are considerable nar portion of reconstituted tobacco; barriers to its adoption.

[0005] FR 2,338,659 discloses a process for recover- characterised in that ing and recycling tobacco dust comprising the steps of; 40 mixing tobacco dust with a binder to provide a paste, · said planar portion has a maximum diameter be- extruding the paste through a die to provide an elongate tween 10-20 mm and a maximum thickness between extrudate, slicing the extrudate at one or more discrete 0.2-0.4 mm.. locations along its length to provide a plurality of extru date portions, and pressing at leastone extrudate portion 45 [0010] The paste is extruded to provide an elongate between two opposed surfaces so as to flatten it. extrudate (e.g. a rod-like extrudate), rather than a sheet- [0006] It is also known to mix tobacco fines with a bind- like extrudate such as described in GB2201081 and erand extrude the mixture as a thin, wide web of material 2266835. that is subsequently drawn down in order to reduce its [0011] The tobacco dust is typically formed during thickness, as described in GB2201081 and GB2266835. so processing of natural tobacco leaf, particularly for exam-The thin reconstituted material may then be mixed with pie, during cutting operations, in which sections of the natural tobacco lamina (that is, tobacco leaf) for further leaf may fragment. The dust typically has a particle diprocessing according to conventional means. This proc- ameter less than 1 mm, and is sieved prior to mixing with ess is often difficultto control, as the web of reconstituted the binder to remove any over-size particles, tobacco material is liable to break during the draw-down 55 [0012] The binder is generally a polymeric binder, e.g. process. a starch-based binder. Typically, the binder comprises [0007] It is desirable to provide a process for producing starch and water. Many types of starch can be used: reconstituted tobacco material that avoids the problems these include corn, rice and potato starches. Modified starches such as hydroxypropyl distarch adipate can also other roller. In general, the slower roller has a surface be used, and these may have advantages in obtaining a speed of at least 1 m/s, preferably at least 1.5 m/s. Typ- final product having the desired lighter-coloured appear- ically, the surface speed of the slower roller is less than ance. 5 m/s, preferably less than 3 m/s.

[0013] The tobacco dust and binder are typically mixed 5 [0022] Typically, the extrudate portion is passed in an extruder com prising a barrel and a screw. Thescrew through multiple pairs of rollers (that is, two or more pairs may serve to mix the components and to drive the paste of rollers), the gap between the individual rollers in each towards the die. The pressure immediately upstream of pair of rollers decreasing in the sequence in which the the die may be in the range of 40-80 bar. The die aperture extrudate passes through the pairs of rollers, through which the paste is extruded typically has a max- 10 [0023] Typically, the temperature of the extrudate por- imum dimension of 1 mm to 10 mm, preferably 3 mm to tions prior to being pressed between the two opposed 5 mm. In certain embodiments, the die may have multiple surfaces is at least 65°C, preferably at least 85°C. Pref- apertures through which paste may be extruded. In this erably, the moisture content of the extrudate portions at case, a single slicing device may serve to slice the ex- that stage of the process is at least 5 wt%, more prefer- trudate exiting the different apertures, and the extrudate 15 ably at least 10 wt%. It is thought that by keeping the portions obtained through the slicing step may all be temperature and moisture contents within these ranges, pressed between the same two opposed surfaces. flow of the extrudate material during the pressing stage [0014] The moisture content of the paste prior to ex- maybefacilitated.whilebreakageofthematerialisavoid- trusion is typically below 30 wt%, preferably below 20 ed. wt%. Typically, this moisture content is 10 wt% or more, 20 [0024] Preferably, the moisture content of the extru- preferably 12wt% or more. date portions prior to the pressing stage is less than [0015] As the paste emerges from the die in the form 25wt%, preferably less than 20 wt%. Itisthoughtthatthis of extrudate, the reduction in pressure within the paste helps to prevent mould formation in the reconstituted to- may cause flash evaporation of a portion of the internal bacco material. moisture, which may result in some expansion (e.g. 25 [0025] In order to maintain the temperature and mois- foaming) and cooling of the paste material. Typically, the ture levels of the extrudate portions within these ranges, temperature of the extrudate immediately after exiting it is preferred thatthe time between extrusion of the paste the die is below 95°C, preferably below 90°C. Typically through the die and pressing of the at leastone extrudate this temperature is above 70°C, preferably above 75°C, portion is minimised. Effectively, this requires that the more preferably above 80°C. 30 distance between die and the opposed surfaces is pref- [0016] The extrudate is typically sliced at locations erably as short as possible. spaced at intervals of 2-15 mm along its length, preferably [0026] As a result of the process of the first aspect of at intervals of 3-10 mm. the invention, flakes of reconstituted tobacco may be [0017] Typically, the step of pressing the at least one formed whose thickness and weight per unit area is such extrudate portion between two opposed surfaces com- 35 that they behave in a similar manner to pieces of natural prises passing the extrudate portion between two rollers tobacco lamina (that is, tobacco leaf) used in the manu- that are axially aligned and displaced from each other facture of smoking articles. along a radial direction. [0027] In particular, when cut into strips of e.g. 0.8 mm [0018] The rollers typically comprise cast iron or an- width, this reconstituted material may have a similar ter-other similar hard material. Optionally, the rollers may 40 minai velocity when lifted pneumatically (e.g. in a ciga-have a wear-resistant coating, comprising, for example, rette-making machine) as strips of natural tobacco lamina tungsten carbide. of similar width. The friability and fragility of the reconsti- [0019] The gap between the opposed surfaces of the tuted material may also be similar to that of natural to- two rollers is generally less than 1 mm, preferably less bacco leaf. than 0.6 mm. In general, the gap is at least 0.1 mm, pref- 45 [0028] The process of the first aspect of the invention erably at least 0.2 mm. has the advantage over prior art processes (in particular, [0020] It has been found that it is preferable for flatten- processes involving drawing down a web of reconstituted ing of the extrudate portions to occur through both Ion- material) that it is relatively simple and does not require gitudinal and sideways flow of the extrudate material. It particularly careful control. For example, the extruder die is also desirable to minimise densification of the extru- so shape is relatively simple to manufacture; there is no date material. It has been found that these objectives need for slicing of the extrudate to be carried out with a may be achieved by passing the extrudate material be- high degree of precision; and there is no need for very tween rollers that are rotating with different surface precise control of the speed of the downstream equip- speeds. Typically, the rollers are individually driven to ment handling the extrudate. Since the reconstituted ma- achieve this effect. 55 terial is typically provided in theform offlakes, ratherthan [0021] For example, one roller may have a surface e.g. a web, the practical problems associated with main- speed that is at least 50% greater than the other roller, taining the integrity of a broad planar material are avoid- in certain cases at least 75% or 100 % greater than the ed.

[0029] Typically, the binder comprises starch. ages. The sieved dust is then conveyed to the first feeder [0030] Preferably, the thickness of the portion is less 20, which doses a flow of dust at a controlled rate into than 0.4 mm. In general, the thickness of the portion is the extruder barrel 14. The second feeder 22 doses a greater than 0.1 mm, preferably greater than 0.2 mm. flow of starch powder into the extruder barrel at a point [0031] Preferably, the maximum dimension of the por- 5 just downstream of the tobacco dust entry. The water tion is no greater than 5 cm. Preferably, the maximum feedpipe 24 injects a controlled flow of water into the dimension of the planar portion is at least 1.5 cm, more extruder at a point just downstream of the starch entry, preferably 2 cm. [0040] The extruder screw 18 is configured to mix the [0032] Preferably, the planar portion hasa rounded pe- tobacco dust, starch and water to form a paste, and to rimeter, e.g. it is substantially circular or elliptical in 10 feed the paste towards the die 28. The speed of rotation shape. of the screw 18 is selected to generate a pressure of e.g.

[0033] Typically, the flattening means comprises a first 45 - 80 bar behind the die 28. The water flow can be pair of rollers, the rollers being axially aligned and dis- varied to provide the required moisture content in the placed from each other in a radial direction. Preferably paste, which is e.g. between 12% and 17% (wet weight the two rollers in the first pair of rollers are individually 15 basis). driven. [0041] Due to the pressure and heat generated in the [0034] In certain embodiments, the apparatus may extruder, the starch gels and binds the dust particles to- comprise a further pair of rollers that is configured to fur- gether. ther provide flattening of the extrudate portions. Thus the [0042] As the paste is forced through the mouth 29a gap between the two rollers in the further pair of rollers 20 of the die 28, an elongate extrudate is formed. As the is smaller than the gap between the two rollers in the first extrudate exits the mouth 29a of the die 28, the reduction pair of rollers. in pressure within it causes flash evaporation of the in ternal moisture, resulting in some expansion and cooling

Detailed description of the paste to a temperature of e.g. between 80°C and 25 90°C.

[0035] The invention will now be described by way of [0043] The extrudate is then conveyed to the slicer 32 example with reference to the following Figures in which: by means of a conveyor belt 30. The slicer 32 carries out repeated cutting actions as the extrudate travels beneath

Fig. 1 is a schematicsection diagram of an apparatus it, thus slicing the extrudate into extrudate portions. The for producing reconstituted tobacco material. 30 timing of the repeating action of the slicer 32 is chosen such the extrudate portions have a length (measured in [0036] Referring to Fig. 1, an apparatus for producing the axial direction of the extrudate) of e.g. between 1 and reconstituted tobacco materials comprises an extruder 2 times the diameter of the die mouth 29a. 10 having driving means 12 and barrel 14. The barrel 14 [0044] The extrudate portions are conveyed to the flat- defines a cavity 16 that houses a screw 18. The extruder 35 tening rollers 34a, 34b. The rollers are individually driven is supplied by two feeders: a first feeder 20, for input of and arranged so that one may be driven significantlyfast-tobacco dust into the extruder, and a second feeder 22 er than the other, for example twice the speed of the downstream of the first feeder 20, for input of starch into other. The surface speed the lower speed roller is e.g. the extruder. A water feedpipe 24 is provided down- 1.8 - 2.5 m/s. The gap between the roller 34a, 34b is 0.2 stream of the second feeder 22, for input of water into 40 -0.6 mm. the extruder. The first and second feeders 20, 22 may [0045] The rollers are driven in opposite directions, each be e.g. a loss-in-weight feeder or a volumetric feed- That is, one roller rotates in an anti-clockwise direction, er. At its downstream end, the extruder cavity 16 is in and the other in a clockwise direction. fluid communication with a feedpipe 26 that feeds a die [0046] The flattening of the extrudate portions by the 28 . 45 rollers results in the formation of flakes of reconstituted [0037] Thedie28 has a conically-shaped interior cavity tobacco material, the flakes being e.g. 10-20 mm in di- 29, the cavity 29 tapering in a downstream direction of ameterand having a thickness of 0.2-0.4 mm. The flakes the extruder 10. The cavity 29 is in fluid communication haveamoisturecontentof11-17wt%, which may provide with the mouth 29a of the die, the mouth having a diam- them with sufficient flexibility for normal handling, while eter of typically 3-5 mm. so being low enough to reduce the formation of mould.

[0038] A conveyor belt 30 provides conveying means [0047] The flakes of reconstituted tobacco material are from the die mouth 29a to a slicer 32 and a pair of rollers mixed with natural tobacco leaf and processed intosmok- 34a, 34b. The pair of rollers 34a, 34b are made from ing articles, e.g. cigarettes, according to conventional chilled cast iron and have a coating comprising tungsten processes that are well-known in the art. That is, they carbide. 55 may be cut together with the natural tobacco material in [0039] To produce reconstituted tobacco material, to- a conventional tobacco cutter, to form a homogeneous bacco dust is first sieved through a 1 mm aperture mesh blend suitable for use as a cigarette filler. to remove over-size material which might cause block-

Claims 9. A process according to any one of the preceding claims, wherein the temperature of the at least one 1. A process for recovering and recycling tobacco dust, extrudate portion priorto being pressed between two comprising the steps of: opposed surfaces is at least 65°C, preferably at least 5 85°C. mixing tobacco dust with a binder to provide a paste; 10. A process according to any one of the preceding extruding the paste through a die to provide an claims, wherein the moisture content of the at least elongate extrudate; one extrudate portion priorto being pressed between slicing the extrudate at one or more discrete Io- 10 two opposed surfaces is between 10-20wt%. cations along its length to provide a plurality of extrudate portions; 11. A process according to any one of the preceding pressing at least one extrudate portion between claims, comprising the further step, after the step of two opposed surfaces, so as to flatten it to pro- pressing the at least one extrudate portion between vide a planar portion of reconstituted tobacco; 15 two opposed surfaces, of blending the flattened ex-characterised in that trudate portion with tobacco leaf for further process- said planar portion has a maximum diameter be- ing to provide a product for smoking. tween 10-20 mm and a maximum thickness between 0.2-0.4 mm. 20 Patentansprüche 2. A process according to claim 1, wherein the binder comprises starch and water. 1. Ein Prozess zur Rückgewinnung und zum Recyceln von Tabakstaub, folgende Schritte umfassend: 3. A process according to claim 1 or claim 2, wherein thestepofpressingtheatleastoneextrudateportion 25 Mischen des Tabakstaubs mit einem Bindemit- between two opposed surfaces comprises passing tel, um eine Paste bereitzustellen; the extrudate portion between two rollers of a first Extrudieren der Paste durch eine Matrize, um pair of rollers, the two rollers being axially aligned ein längliches Extrudat bereitzustellen; and displaced from each other along a radial direc- Schneiden des Extrudats an einer oder mehre- tion. 30 ren diskreten Stellen entlang seiner Länge, um eine Vielzahl von Extrudatteilen bereitzustellen; 4. A process according to claim 3, wherein the gap be- Pressen mindestens eines Extrudatteils zwi- tween the respective surfaces of the two rollers is 1 sehen zwei Gegenflächen, um ihn abzuflachen, mm or less. um einen ebenflächigen Teil von rekonstituier- 35 tem Tabak bereitzustellen; 5. A process according to claim 3 or claim 4, wherein dadurch gekennzeichnet, dass the two rollers comprise a faster roller and a slower der eben flächige Teil einen maximalen Durchroller, thefasterrollerhavingagreatersurfacespeed messerzwischen 10-20 mm und eine maximale than the slower roller. Dicke zwischen 0,2-0,4 mm hat. 40 6. A process according to claim 5, wherein the faster 2. Ein Prozess nach Anspruch 1, wobei das Bindemittel roller has a surface speed that is at least 50% greater Stärke und Wasser umfasst. than the surface speed of the slower roller. 3. Ein Prozess nach Anspruch 1 oder Anspruch 2, wo- 7. A process according to claim 5 or claim 6, wherein 45 bei der Schritt der Pressung des mindestens einen thesurfacespeedoftheslowerrollerisatleastl m/s. Extrudatteils zwischen zwei Gegenflächen, den

Durchlauf des Extrudatteils zwischen zwei Walzen 8. A process according to any one of claims 3 to 7, eines ersten Walzenpaares umfasst, wobei die zwei comprising the further step, after the step of passing Walzen axial ausgerichtet und entlang einer radialen the extrudate portion between the first pair of rollers, so Richtung voneinander verschoben sind. of passing the flattened extrudate portion between a second pair of rollers, the two rollers of the second 4. Ein Prozess nach Anspruch 3, wobei der Spalt zwi- pair of rollers being axially aligned and displaced sehen den jeweiligen Oberflächen der zwei Walzen from each other along a radial direction, the gap be- 1 mm oder weniger beträgt. tween the two rollers of the second pair of rollers 55 being smaller than the gap between the two rollers 5. Ein Prozess nach Anspruch 3 oder Anspruch 4, woof the first pair of rollers. bei die zwei Walzen eine schnellere und eine lang samere Walzen umfassen, wobei die schnellere

Walze eine größere Oberflächengeschwindigkeit als le pressage d’au moins une portion d’extrudat die langsamere Walze aufweist. entre deux surfaces opposées, defaçon à l’apla tir de façon à obtenir une portion plane de tabac 6. Ein Prozess nach Anspruch 5, wobei die schnellere reconstitué,

Walze eine Oberflächengeschwindigkeit aufweist, 5 caractérisé en ce que die mindestens 50% größer als die Oberflächenge- ladite portion plane possède un diamètre maxi- schwindigkeit der langsameren Walze ist. mal entre 10 et 20 mm et une épaisseur maxi male entre 0,2 et 0,4 mm. 7. Ein Prozess nach Anspruch 5 oder Anspruch, wobei die Oberflächengeschwindigkeit der langsameren 10 2. Un processus selon la Revendication 1, où le liant

Walze mindestens 1 m/s beträgt. contient de l’amidon et de l’eau. 8. Ein Prozess nach einem der Ansprüche 3 bis 7, der 3. Un processus selon la Revendication 1 ou 2, où den weiteren Schritt, nach dem Schritt des Durch- l’opération de pressage de la au moins une portion laufs des Extrudatteils zwischen dem ersten Wal- 15 d’extrudat entre deux surfaces opposées comprend zenpaar, den Durchlauf des abgeflachten Extrudat- le passage de la portion d’extrudat entre deux rou- teils zwischen einem zweiten Walzenpaar umfasst, leaux d’une première paire de rouleaux, les deux wobei die zwei Walzen des zweiten Walzenpaares rouleaux étant axialement alignés et décalés l’un de axial ausgerichtet und voneinander entlang einer ra- l’autre le long d’une direction radiale. dialen Richtung verschoben sind, wobei der Spalt 20 zwischen den zwei Walzen des zweiten Walzenpaa- 4. Un processus selon la Revendication 3, où l’espace res kleiner als der Spalt zwischen den zwei Walzen entre les surfaces respectives des deux rouleaux est des ersten Walzenpaares ist. de 1 mm ou moins. 9. Ein Prozess nach einem der vorhergehenden An- 25 5. Un processus selon la Revendication 3 ou 4, où les

Sprüche, wobei die Temperatur des mindestens ei- deux rouleaux comprennent un rouleau plus rapide nen Extrudatteils vor dem Pressen zwischen zwei et un rouleau plus lent, le rouleau plus rapide pos-

Gegenflächen mindestens 65°C, vorzugsweise min- sédant une vitesse de surface supérieure à celle du destens 85°C beträgt. rouleau plus lent. 30 10. Ein Prozess nach einem der vorhergehenden An- 6. Un processus selon la Revendication 5, où le rouleau

Sprüche, wobei der Feuchtigkeitsgehalt des mindes- plus rapide possède une vitesse de surface qui est tens einen Extrudatteils vor dem Pressen zwischen au moins supérieure de 50% à la vitesse de surface zwei Gegenflächen zwischen 10-20 Gew.-% beträgt. du rouleau plus lent. 35 11. Ein Prozess nach einem der vorhergehenden An- 7. Un processus selon la Revendication 5 ou 6, où la

Sprüche, der den weiteren Schritt, nach dem Schritt vitesse de surface du rouleau plus lentestd’au moins der Pressung des mindestens einen Extrudatteils 1 m/s. zwischen zwei Gegenflächen, der Mischung des abgeflachten Extrudatteils mit Tabakblatt zur Weiter- 40 8. Un processus selon l’une quelconque des Revendi- verarbeitung umfasst, um ein Erzeugnis zum Rau- cations 3 à 7, comprenant l’opération complémen- chen bereitzustellen. taire, après l’opération de passage de la portion d’ex trudat entre la première paire de rouleaux, de passage de la portion d’extrudat aplatie entre une

Revendications 45 deuxième paire de rouleaux, les deux rouleaux de la deuxième paire de rouleaux étant axialement ali- 1. Un processus de récupération et de recyclage de gnés et décalés l’un de l’autre le long d’une direction poudre de tabac, comprenant les opérations radiale, l’espace entre les deux rouleaux de la suivantes : deuxième paire de rouleaux étant inférieurà l’espace 50 entre les deux rouleaux de la première paire de roule mélange de la poudre de tabac avec un liant leaux. de façon à obtenir une pâte, l’extrusion de la pâte au travers d’une filière de 9. Un processus selon l’une quelconque des Revendi- façon à obtenir un extrudat étiré, cations précédentes, où la température de la au la découpe en tranches de l’extrudat au niveau 55 moins une portion d’extrudat avant d’être pressée d’un ou de plusieurs emplacements discrets le entre deux surfaces opposées estau moinsde65°C, long de sa longueur de façon à obtenir une plu- de préférence au moins de 85°C. ralité de portions d’extrudat, 10. Un processus selon l’une quelconque des Revendications précédentes, où la teneur en humidité de la au moins une portion d’extrudat avant d’être pressée entre deux surfaces opposées se situe entre 10 et 20 % en poids. 5 11. Un processus selon l’une quelconque des Revendications précédentes, comprenant l’opération complémentaire, après l’opération de pressage de la au moins une portion d’extrudat entre deux surfaces op- 10 posées, de mélange de la portion d’extrudat aplatie avec une feuille de tabac pour un traitement complémentaire de façon à obtenir un produit à fumer. 15 20 25 30 35 40 45 50 55

REFERENCES CITED IN THE DESCRIPTION

This list of references cited by the applicant is for the reader’s convenience only. It does not form part of the European patent document. Even though great care has been taken in compiling the references, errors or omissions cannot be excluded and the EPO disclaims all liability in this regard.

Patent documents cited in the description • US 20080196731 A [0003] · GB 2201081 A [0006] [0010] • EP 0404579 A [0004] · GB 2266835 A [0006] [0010] • FR 2338659 [0005]

Claims (7)

Recovered Tobacco and Equipment for its Production PATENT POINT POINTS I Method for recovering tobacco powder and smearing it with the following steps: tobacco powder binders fcevsrted to make a pulp with the pulp tool kMfelpA to create a longitudinal cheesecake, length of the hammer. at one or more places we cut the cheesecake in order to make a number of> ÂÎtoK'à> xvV SXSÍ $>: the most recent transitions from one cheesecake section to the other so that we can make it, β flat, to get the maximum diameter of my flat smoker between 10 and 20 mm, the masirofels thickness is between 0.2 and <M above, 2. The method of claim 1, wherein the binder is starch and water. or 2, according to the requirements, where in the sputtering of a sphere, you can find a UA υ, ί -,> a! xmmhen, feo tended to be maintained between the roll of xmtn, tt t ed ed, and rollers, and the rollers are axially, in a train, spaced radially apart, 4. The method of claim 3, wherein the gap between the respective rims of the two rollers is i mm or less. 5. The method of any one of claims 4 to 5, wherein the two rollers include a faster götgoi ex a slower roller, wherein a: the faster the roller has a higher request speed, tnfef the slower roller, The method of claim 5, wherein the quicker roller has a velocity of at least 50% higher, and the top speed of the slower roller. 7. The 5, desire he is. The method according to claims 1 to 3, wherein the peripheral velocity of the slower roller is at least I m / s, S. A 3-7. A method according to any one of claims 1 to 5, further comprising the step of passing the x-mouth portion between the rollers of the first vapor pair, and passing it through a second pair of gutters, where the two rollers of the second steam pair are in line in the fengelyn and in a radial direction. and the gap between the second gwgopm got goi is smaller, i.e. the gap between the rollers of the first vapor pair, 'gap. The method according to any one of the preceding claims, wherein the at least one molding portion of the molding portion, inielut, is passed between the two opposing surfaces, at least 65 C C, preferably at least 85. The method of any of the preceding claims, wherein the at least one slot is? the moisture content of the two holy ones; between 20 and 20% by weight prior to the application. A method of any one of the preceding claims, the sequence of which is! is a .aaobany exse in the next tepes? after passing through two avatars of <RTI ID = 0.0> ao: <W. </RTI> in the stomach, the kdapdoSt mash is mixed with a tobacco leaf to obtain rfehaoye during further processing.