EP0039647A1 - Device for making tobacco filaments - Google Patents
Device for making tobacco filaments Download PDFInfo
- Publication number
- EP0039647A1 EP0039647A1 EP81400711A EP81400711A EP0039647A1 EP 0039647 A1 EP0039647 A1 EP 0039647A1 EP 81400711 A EP81400711 A EP 81400711A EP 81400711 A EP81400711 A EP 81400711A EP 0039647 A1 EP0039647 A1 EP 0039647A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- filaments
- tobacco
- mesh
- manufacturing
- die
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B11/00—Presses specially adapted for forming shaped articles from material in particulate or plastic state, e.g. briquetting presses, tabletting presses
- B30B11/22—Extrusion presses; Dies therefor
- B30B11/221—Extrusion presses; Dies therefor extrusion dies
-
- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24B—MANUFACTURE OR PREPARATION OF TOBACCO FOR SMOKING OR CHEWING; TOBACCO; SNUFF
- A24B3/00—Preparing tobacco in the factory
- A24B3/14—Forming reconstituted tobacco products, e.g. wrapper materials, sheets, imitation leaves, rods, cakes; Forms of such products
Definitions
- the invention relates to a device for manufacturing tobacco filaments by extruding a wet mixture based on tobacco particles.
- the die must be able to withstand the extrusion pressure and it is difficult to make the orifices of small section in a sufficiently resistant material. In addition, these orifices can be easily plugged, which results in the replacement of the die and consequently the stoppage of production.
- the subject of the invention is a new simple and economical arrangement for the easier production of tobacco filaments by extrusion.
- the extrusion die consists of a cylindrical duct of sufficient section for the formation under pressure of a tobacco rod and is followed by a mesh interposed on the passage of said rod and placed in a plane transverse to the axis of the duct at the outlet of the latter, the said mesh being made up of intertwined stretched wires of rounded section capable of dividing the rod into a plurality of filaments constituting the scalp of tobacco.
- the extruder has a substantially horizontal axis and the filaments break by gravity as soon as that a certain length has been formed beyond the mesh, said length being a function of the composition of the extruded mixture.
- the spinning axis is substantially vertical, the die being associated with a filament cutting device, in this case, at least one of the two elements of the spinning assembly constituted by the duct and the screen is animated by a transverse oscillation movement causing the formation of wavy filaments.
- the extrusion die is constituted by a simple cylindrical conduit of relatively large diameter, for example of the order of 10 mm.
- the raw materials introduced upstream of the extruder in particular the tobacco particles and the binders and the amount of water required, for example 15 to 25% of the weight of dry matter, are kneaded inside the barrel so forming a mixture 4 which is extruded under pressure to form a rod or tube 5 inside the cylindrical duct 3.
- a grid 6 transverse to the axis of the duct and which cuts the strand 5 into a plurality of filaments 7.
- the grid 6 consists, as shown in the figures, of intertwined stretched wires with rounded section constituting separators 6 U capable of cutting the tube 5 into a plurality of filaments whose unitary section corresponds to the inner mesh resulting from the 'intersection of wires 50.
- This method guarantees the homogeneity of the extruded mixture and therefore the qualities of the filaments produced.
- the pressure in the die depending essentially on the diameter thereof, the use of a large diameter conduit for example between 10 and 20 mm allows to extrude a large flow without excessively raising the pressure.
- the wires of the mesh causing the division of the rod into filaments will preferably have a rounded section which makes it possible to limit the pressure drop and the pressure in the dies formed by the mesh 61 of the mesh.
- the meshes of the mesh will have a truncated section and will give a certain proportion of finer filaments. This proportion advantageously facilitates the shaping of cigarettes.
- the dimensions of the orifices can vary, for the long side between 0.7 and 2 mm and for the short side between 0, 30 and 0.50 mm .
- the tobacco filaments freely come out of the mesh in a substantially horizontal direction.
- the proportions of cohesion agents introduced into the mixture and the extrusion pressure it is possible to obtain filaments having sufficient strength to constitute tobacco strands which describe a slightly pronounced downward curve and break under their dead weight after a certain length.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacture Of Tobacco Products (AREA)
- Manufacturing Of Cigar And Cigarette Tobacco (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
Description
L'invention a pour objet un dispositif de fabrication de filaments de tabac par extrusion d'un mélange humide à base de particules de tabac.The invention relates to a device for manufacturing tobacco filaments by extruding a wet mixture based on tobacco particles.
On connaît divers procédés de reconstitution de tabac à partir de particules pouvant provenir soit des parties nobles des feuilles du plant de tabac, soit de déchets récupérés. Ces particules sont préàablement traitas selon des techniques connues, puis sont finement broyés, mélangés avec des agents de cohésion connus, par exemple dextrine, amidon, pectine etc... et enfin humidifiés à une teneur globale en eau pouvant être comprise entre 15 et 25 %.Various methods of reconstituting tobacco are known from particles which can come either from the noble parts of the leaves of the tobacco plant, or from recovered waste. These particles are previously treated according to known techniques, then are finely ground, mixed with known cohesion agents, for example dextrin, starch, pectin, etc. and finally moistened to an overall water content which may be between 15 and 25 %.
Dans certains procédés, on a proposé de réaliser le mélange dans une extrudeuse à vis qui permet de former une feuille ou un ruban au moyen d'une filière plate. Cette feuille est ensuite découpée en lanières qui peuvent être ondulées par la suite pour obtenir ce que l'on appelle du chevelu de tabac.In certain methods, it has been proposed to make the mixture in a screw extruder which makes it possible to form a sheet or a ribbon by means of a flat die. This sheet is then cut into strips which can be corrugated later to obtain what is called tobacco hair.
On a également envisagé d'extruder directement un ensemble de filamerts obtenu à partir d'une filière munie d'une pluralité d'orifices ou de fentes de faible section.It has also been envisaged to directly extrude a set of filamerts obtained from a die provided with a plurality of orifices or slits of small section.
La filière doit être capable de résister à la pression d'extrusion et il est difficile de réaliser les orifices de faible section dans une matière suffisamment résistante. En outre, ces orifices peuvent se boucher facilement ce qui entraîne le remplacement de la filière et par conséquent l'arrêt de la production.The die must be able to withstand the extrusion pressure and it is difficult to make the orifices of small section in a sufficiently resistant material. In addition, these orifices can be easily plugged, which results in the replacement of the die and consequently the stoppage of production.
L'invention a pour objet une nouvelle disposition simple et économique pour la réalisation plus facile de filaments de tabac par extrusion.The subject of the invention is a new simple and economical arrangement for the easier production of tobacco filaments by extrusion.
Conformément à l'invention, la filière d'extrusion est constituée d'un conduit cylindrique de section suffisante pour la formation sous pression d'un boudin de tabac et est suivie d'un grillage interposé sur le passage dudit boudin et placé dans un plan transversal à l'axe du conduit à la sortie de celui-ci, ledit grillage étant constitué de fils tendus entrecroisés à section arrondie susceptibles de diviser le boudin en une pluralité de filaments constituant du chevelu de tabac.According to the invention, the extrusion die consists of a cylindrical duct of sufficient section for the formation under pressure of a tobacco rod and is followed by a mesh interposed on the passage of said rod and placed in a plane transverse to the axis of the duct at the outlet of the latter, the said mesh being made up of intertwined stretched wires of rounded section capable of dividing the rod into a plurality of filaments constituting the scalp of tobacco.
Dans un premier mode de réalisation, de l'invention l'extrudeuse a un axe sensiblement horizontal et les filaments se cassent par gravité dès qu'une certaine longueur a écé formée au-delà du grillage, ladite longueur étant fonction de la composition du mélange extrudé.In a first embodiment, of the invention, the extruder has a substantially horizontal axis and the filaments break by gravity as soon as that a certain length has been formed beyond the mesh, said length being a function of the composition of the extruded mixture.
Dans une second mode de réalisation de l'invention l'axe de filage est sensiblement vertical, la filière étant associée à un dispositif de coupe de filaments, dans ce cas, l'un au moins des deux éléments de l'ensemble de filage constitué par le conduit et le grillage est animé d'un mouvement d'oscillation transversale provoquant la formation de filaments ondulés.In a second embodiment of the invention the spinning axis is substantially vertical, the die being associated with a filament cutting device, in this case, at least one of the two elements of the spinning assembly constituted by the duct and the screen is animated by a transverse oscillation movement causing the formation of wavy filaments.
L'invention va maintenant être décrite en se référant à un mode de réalisation particulier, donné à titre d'exemple et représenté sur les dessins annexés.The invention will now be described with reference to a particular embodiment, given by way of example and shown in the accompanying drawings.
- La figure est une vue en coupe longitudinale d'une filière d'extrusion selon l'invention.The figure is a view in longitudinal section of an extrusion die according to the invention.
- La figure 2 est une vue de face de la filière.Figure 2 is a front view of the die.
- La figure 3 est une vue en coupe longitudinale à échelle agrandie du grillage formant filière..Figure 3 is a longitudinal sectional view on an enlarged scale of the mesh forming die.
- La figure 4 est une vue de face d'une variante de montage du grillage.Figure 4 is a front view of an alternative mounting of the mesh.
- La figure 5 est une vue schématique d'un autre mode de réalisation.Figure 5 is a schematic view of another embodiment.
Sur la figure 1, on a représenté l'extrémité d'une extrudeuse comportant un fourreau 1 à l'intérieur duquel est placé au moins une vis d'extrusion 2. Selon une caractéristique de.l'invention, la filière d'extrusion est constituée par un simple conduit cylindrique de diamètre relativement important, par exemple de l'ordre de 10 mm.In Figure 1, there is shown the end of an extruder comprising a
Ainsi, les matières premières introduites en amont de l'extrudeuse, notamment les particules de tabac et les liants et la quantité d'eau nécessaire par exemple 15 à 25 % du poids de matière sèche, sont malaxées à l'intérieur du fourreau de façon à former un mélange 4 qui est extrudé sous pression pour former un jonc ou boudin 5 à l'intérieur du conduit cylindrique 3. D'autre part, à la sortie du conduit 3 est placé un grillage 6 transversal à l'axe du conduit et qui sectionne le boudin 5 en une pluralité de filaments 7.Thus, the raw materials introduced upstream of the extruder, in particular the tobacco particles and the binders and the amount of water required, for example 15 to 25% of the weight of dry matter, are kneaded inside the barrel so forming a mixture 4 which is extruded under pressure to form a rod or tube 5 inside the cylindrical duct 3. On the other hand, at the outlet of the duct 3 is placed a
Le grillage 6 est constitué comme on l'a représenté sur les figures, de fils tendus entrecroisés à section arrondie constituant des séparateurs 6U susceptible de sectionner le boudin 5 en une pluralité de filaments dont la section unitaire correspond à la maille intérieure résultant de l'intersection des fils 50.The
Selon la caractéristique essentielle de l'invention, les filaments sont donc formés en deux temps :
- On forme tout d'abord un jonc 5 dans le conduit 3 de diamètre relativement important et ensuite ce jonc est sectionné en un grand nombre de filaments par passage à travers les mailles du
grillage 6. ,
- Firstly, a rod 5 is formed in the conduit 3 of relatively large diameter and then this rod is sectioned in a large number of filaments by passing through the meshes of the mesh 6.,
Cette méthode permet de garantir l'homogénéité du mélange extrudé et par conséquent les qualités des filaments produits.This method guarantees the homogeneity of the extruded mixture and therefore the qualities of the filaments produced.
En effet, si l'on effectuait directement le filage des filaments à travers une filière comportant un grand nombre d'orifices de petit diamètre, la perte de charge qui en résulterait conduirait à une pression d'extrusion très élevée qui risquerait de produire une expulsion de la phase liquide contenue dans le mélange, celle-ci ayant tendance à remonter vers l'amont et la pression dans la filière doit donc être limitée pour éviter cet assèchement qui risquerait de nuire à la qualité des fibres.Indeed, if the filaments were spun directly through a die comprising a large number of small diameter orifices, the pressure drop which would result therefrom would lead to a very high extrusion pressure which would risk producing an expulsion. of the liquid phase contained in the mixture, the latter tending to rise upstream and the pressure in the die must therefore be limited to avoid this drying out which would risk harming the quality of the fibers.
Cependant, il faut également conserver une pression d'extrusion suffisante pour assurer un bon malaxage des produits et en outre le taux d'humidité ne doit pas être trop élevé si l'on veut que les filaments se forment correctement.However, it is also necessary to keep an extrusion pressure sufficient to ensure good mixing of the products and in addition the humidity must not be too high if the filaments are to be formed correctly.
L'extrusiondes filaments en deux étapes selon l'invention, permet de conjuguer ces différents impératifs.The extrusion of the filaments in two stages according to the invention makes it possible to combine these different imperatives.
En effet, la pression dans la filière dépendant essentiellement du diamètre de celle-ci, l'utilisation d'un conduit de grand diamètre par exemple compris entre 10 et 20 mm permet d'extruder un débit important sans élever exagérément la pression.Indeed, the pressure in the die depending essentially on the diameter thereof, the use of a large diameter conduit for example between 10 and 20 mm allows to extrude a large flow without excessively raising the pressure.
Celle-ci est diminuée en aval par la perte de charge le long du conduit dont la longueur peut être comprise entre 0,5 et 3 fois de diamètre.This is reduced downstream by the pressure drop along the pipe, the length of which can be between 0.5 and 3 times in diameter.
Ainsi la pression globale du jonc sur le grillage est réduite et ne risque pas de le déformer.Thus the overall pressure of the rod on the mesh is reduced and does not risk deforming it.
Par ailleurs, les fils du grillage provoquant la division du jonc en filaments auront de préférence une section arrondie qui permet de limiter la perte de charge et la pression dans les filières constituées par les mailles 61 du grillage.Furthermore, the wires of the mesh causing the division of the rod into filaments will preferably have a rounded section which makes it possible to limit the pressure drop and the pressure in the dies formed by the
Il faut également noter que l'utilisation d'un grillage à fils arrondis permet de réaliser de façon très économique une pluralitéde filières à section rectangulaire et ayant des bords arrondis, ce qui est nécessaire pour réaliser les filaments ayant la section voulue.It should also be noted that the use of a mesh with rounded threads makes it possible to produce very economically a plurality of dies with rectangular section and having rounded edges, which is necessary to produce the filaments having the desired section.
D'ailleurs, un autre avantage résulte de l'association d'un grillage à mailles carrées avec un conduit de section circulaire.Moreover, another advantage results from the association of a mesh with square meshes with a duct of circular section.
En effet, comme on l'a représenté sur la figure 2, si l'on utilise un grillage à mailles carrées ou rectangulaires, la plupart des filaments 71 auront également une section carrée ou rectangulaire.Indeed, as shown in FIG. 2, if a mesh with square or rectangular meshes is used, most of the filaments 71 will also have a square or rectangular section.
Cependant, sur la périphérie, les mailles du grillage auront une section tronquée et donneront une certaine proportion de filaments plus fins. Cette proportion facilite avantageusement la mise en forme des cigarettes.However, on the periphery, the meshes of the mesh will have a truncated section and will give a certain proportion of finer filaments. This proportion advantageously facilitates the shaping of cigarettes.
Pour que la pression de filage de la matière reste dans les limites souhaitées on peut faire varier soit le diamètre du jonc soit le diamètre des fils de chaine et de trame en fonction de l'épaisseur et de la largeur des filaments que l'on désire obtenir, pour un débit donné.So that the spinning pressure of the material remains within the desired limits, it is possible to vary either the diameter of the rod or the diameter of the warp and weft threads according to the thickness and the width of the filaments that are desired. get, for a given flow.
On a constaté que des grillages disponibles en dimensions standardisées permettaient d'obtenir des filaments ayant les dimensions habituellement utilisées dans la fabrication du tabac.It has been found that screens available in standardized dimensions make it possible to obtain filaments having the dimensions usually used in the manufacture of tobacco.
Ainsi, pour un fil de diamètre compris entre 0,30 et 0,50 mm, les dimensions des orifices peuvent varier, pour le grand côté entre 0,7 et 2 mm et pour le petit côté entre o,30 et 0,50 mm.Thus, for a wire with a diameter between 0.30 and 0.50 mm, the dimensions of the orifices can vary, for the long side between 0.7 and 2 mm and for the short side between 0, 30 and 0.50 mm .
A titre d'exemple, pour un débit de 60 kg/h de mélange extrudable ayant une teneur en eau comprise entre 10 et 35 % le conduit 3 ayant un diamètre de 10 mm, une toile métallique constituée de fils de 0,42 mm permettra d'obtenir de filaments de section de 0,35 x 0,75 mm:
- D'autre part, l'utilisation comme filière d'un grillage métallique permet de renouveler facilement la partie se trouvant devant l'orifice de sortie. En effet, comme on l'a représenté sur la figure 4, le grillage peut être constitué par une bande de toile métallique 60 se déroulant à partir d'une bobine de
réserve 63 et appliquée contre l'extrémité 10 dufourreau 1 par une simple pièce defixation 11 qu'il suffit de désserrer pour pouvoir faire passer une nouvelle partie de la toile devant l'orifice. Cette opération peut ainsi se faire sans démontage important de la tête de l'extrudeuse et par conséquent sans arrêt de la production, car le déplacement du grillage peut être effectué pendant le filage.
- On the other hand, the use as a die of a metal mesh makes it possible to easily renew the part located in front of the outlet orifice. Indeed, as shown in FIG. 4, the mesh can be constituted by a strip of
metallic fabric 60 unwinding from areserve coil 63 and applied against theend 10 of thesheath 1 by asimple fastener 11 which is sufficient to loosen in order to be able to pass a new part of the fabric in front of the orifice. This operation can thus be done without significant disassembly of the head of the extruder and therefore without stopping production, because the movement of the mesh can be performed during spinning.
Comme on l'a représenté sur la figure 1, les filaments de tabac sortent librement du grillage suivant une direction sensiblement horizontale. En faisant varier les proportions d'agents de cohésion introduits dans le mélange et la pression d'extrusion, on peut obtenir des filaments ayant suffisamment de tenue pour constituer des brins de tabac qui décrivent une courbe peu prononcée vers le bas et se cassent sous leur poids propre au bout d'une certaine longueur.As shown in Figure 1, the tobacco filaments freely come out of the mesh in a substantially horizontal direction. By varying the proportions of cohesion agents introduced into the mixture and the extrusion pressure, it is possible to obtain filaments having sufficient strength to constitute tobacco strands which describe a slightly pronounced downward curve and break under their dead weight after a certain length.
Il est également possible, comme on l'a représenté sur la figure 5, d'utiliser une extrudeuse à axe vertical. Dans ce cas, le grillage 7 doit être associé à un couteau rotatif 8 assurant le sectionnement périodique des filaments formés. Cette disposition est avantageuse pour la fabrication de filaments ondulés. En effet, il suffit d'animer l'ensemble d'extrusion d'une suite de vibrations de fréquence et d'amplitude réglable dans un plan sensiblement horizontal pour que les filaments prennent à la sortie la forme d'ondulations.It is also possible, as shown in FIG. 5, to use an extruder with a vertical axis. In this case, the mesh 7 must be associated with a
Bien entendu, d'autres variantes pourraient être imaginées, l'invention ne se limitant évidemment pas aux détails du mode de réalisation qui n'a été décrit qu'à titre d'exemple.Of course, other variants could be imagined, the invention obviously not being limited to the details of the embodiment which has only been described by way of example.
Claims (5)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AT81400711T ATE15133T1 (en) | 1980-05-06 | 1981-05-06 | DEVICE FOR THE PRODUCTION OF TOBACCO FIBERS. |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR8010097A FR2481891A1 (en) | 1980-05-06 | 1980-05-06 | DEVICE FOR MANUFACTURING TOBACCO FILAMENTS |
| FR8010097 | 1980-05-06 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0039647A1 true EP0039647A1 (en) | 1981-11-11 |
| EP0039647B1 EP0039647B1 (en) | 1985-08-28 |
Family
ID=9241670
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP81400711A Expired EP0039647B1 (en) | 1980-05-06 | 1981-05-06 | Device for making tobacco filaments |
Country Status (8)
| Country | Link |
|---|---|
| EP (1) | EP0039647B1 (en) |
| JP (1) | JPS575681A (en) |
| AT (1) | ATE15133T1 (en) |
| BR (1) | BR8102569A (en) |
| CA (1) | CA1163069A (en) |
| CU (1) | CU21244A3 (en) |
| DE (1) | DE3171995D1 (en) |
| FR (1) | FR2481891A1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3339247C1 (en) * | 1983-10-28 | 1985-05-09 | B.A.T. Cigaretten-Fabriken Gmbh, 2000 Hamburg | Method and device for producing crimped fiber pieces from recycled tobacco |
| EP0524379A2 (en) * | 1991-05-27 | 1993-01-27 | British-American Tobacco (Germany) GmbH | Tobacco containing filaments and method and apparatus for their preparation |
| WO2001084968A2 (en) * | 2000-05-12 | 2001-11-15 | British American Tobacco (Investments) Limited | Tobacco reconstitution |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB8704196D0 (en) * | 1987-02-23 | 1987-04-01 | British American Tobacco Co | Tobacco reconstitution |
| GB8704197D0 (en) * | 1987-02-23 | 1987-04-01 | British American Tobacco Co | Tobacco reconstitution |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE478954C (en) * | ||||
| GB770071A (en) * | 1955-02-09 | 1957-03-13 | Nat Res Dev | Improvements in tobacco smoke filters |
| GB1138280A (en) * | 1966-10-10 | 1968-12-27 | Schiff & Stern Ges M B H | Process and apparatus for the production of artificial cigarette tobacco |
| DE2358656A1 (en) * | 1972-12-22 | 1974-06-27 | Tamag Basel Ag | EXTRUDER NOZZLE FOR SHAPING TOBACCO MASH |
| DE2633627A1 (en) * | 1975-07-29 | 1977-02-10 | Tabac Fab Reunies Sa | METHOD AND DEVICE FOR MANUFACTURING ARTIFICIAL TOBACCO |
-
1980
- 1980-05-06 FR FR8010097A patent/FR2481891A1/en active Granted
-
1981
- 1981-04-27 BR BR8102569A patent/BR8102569A/en unknown
- 1981-05-05 CA CA000376857A patent/CA1163069A/en not_active Expired
- 1981-05-06 CU CU8135450A patent/CU21244A3/en unknown
- 1981-05-06 DE DE8181400711T patent/DE3171995D1/en not_active Expired
- 1981-05-06 EP EP81400711A patent/EP0039647B1/en not_active Expired
- 1981-05-06 AT AT81400711T patent/ATE15133T1/en not_active IP Right Cessation
- 1981-05-06 JP JP6805481A patent/JPS575681A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE478954C (en) * | ||||
| GB770071A (en) * | 1955-02-09 | 1957-03-13 | Nat Res Dev | Improvements in tobacco smoke filters |
| GB1138280A (en) * | 1966-10-10 | 1968-12-27 | Schiff & Stern Ges M B H | Process and apparatus for the production of artificial cigarette tobacco |
| DE2358656A1 (en) * | 1972-12-22 | 1974-06-27 | Tamag Basel Ag | EXTRUDER NOZZLE FOR SHAPING TOBACCO MASH |
| DE2633627A1 (en) * | 1975-07-29 | 1977-02-10 | Tabac Fab Reunies Sa | METHOD AND DEVICE FOR MANUFACTURING ARTIFICIAL TOBACCO |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3339247C1 (en) * | 1983-10-28 | 1985-05-09 | B.A.T. Cigaretten-Fabriken Gmbh, 2000 Hamburg | Method and device for producing crimped fiber pieces from recycled tobacco |
| EP0143335A1 (en) * | 1983-10-28 | 1985-06-05 | B.A.T. Cigarettenfabriken GmbH | Apparatus for the production of crinkled strands from reconstituted tobacco |
| EP0524379A2 (en) * | 1991-05-27 | 1993-01-27 | British-American Tobacco (Germany) GmbH | Tobacco containing filaments and method and apparatus for their preparation |
| EP0524379A3 (en) * | 1991-05-27 | 1993-03-17 | B.A.T. Cigarettenfabriken Gmbh | Tobacco containing filaments and method and apparatus for their preparation |
| US5353816A (en) * | 1991-05-27 | 1994-10-11 | B.A.T. Cigarettenfabriken Gmbh | Foil filaments containing tobacco and method and apparatus for the production thereof |
| WO2001084968A2 (en) * | 2000-05-12 | 2001-11-15 | British American Tobacco (Investments) Limited | Tobacco reconstitution |
| WO2001084968A3 (en) * | 2000-05-12 | 2002-04-04 | British American Tobacco Co | Tobacco reconstitution |
Also Published As
| Publication number | Publication date |
|---|---|
| DE3171995D1 (en) | 1985-10-03 |
| FR2481891A1 (en) | 1981-11-13 |
| ATE15133T1 (en) | 1985-09-15 |
| JPS575681A (en) | 1982-01-12 |
| FR2481891B1 (en) | 1984-03-02 |
| EP0039647B1 (en) | 1985-08-28 |
| BR8102569A (en) | 1982-01-19 |
| CA1163069A (en) | 1984-03-06 |
| CU21244A3 (en) | 1987-10-12 |
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