WO2009138193A1

WO2009138193A1 - Production of cut tobacco

Info

Publication number: WO2009138193A1
Application number: PCT/EP2009/003292
Authority: WO
Inventors: Dietmar Zielke
Original assignee: Hauni Maschinenbau Ag
Priority date: 2008-05-13
Filing date: 2009-05-08
Publication date: 2009-11-19
Also published as: DE102008023251A1

Abstract

The invention relates to a method for producing cut tobacco, wherein tobacco product, preferably tobacco product free of stems and/or ribs, is provided. The method is characterized in that the following steps are performed: a) the tobacco product is classified into at least two tobacco product size classes (14, 24.1, 24.2, 24.3) and distributed, b) at least one quantity of tobacco of a tobacco product size class (14, 24.1, 24.2, 24.3) is chopped one or more times such that one or more tobacco product size subclasses are formed, c) a quantity of tobacco of a tobacco product size subclass is mixed with a quantity of tobacco of a tobacco product size class (14, 24.1, 24.2, 24.3) and/or a quantity of tobacco of a further tobacco product size subclass in a specified mixing ratio to form a quantity of tobacco mixture, and d) the quantity of tobacco mixture is cut into cut tobacco in a subsequent step.

Description

Production of cut tobacco

description

The invention relates to a method for producing cut tobacco, wherein tobacco material, preferably of stalks and / or ribs liberated tobacco material, is provided.

Tobacco leaves are made of pure leaf tobacco and tobacco ribs, with the leaf tobacco and the tobacco ribs being separated from each other for processing. During tobacco preparation, the tobacco ribs, as well as the leaf tobacco, are treated separately, usually conditioning the leaf tobacco, i. a moisture and heat treatment is subjected, as well as cut and dried. In further process steps, the tobacco ribs and cut leaf material, i. the cut tobacco strips, mixed together and used for further processing e.g. Flavours etc. subjected.

The basic principles of making cut tobacco are in the Book "Tobacco Encyclopedia", ed. By Ernst Voges, 1984, in the article "Manufacture", pages 408 ff., In particular under the heading "In the production of cut tobacco", shown in detail.

Commonly in this method, the ribs and the

Sheet material in the tobacco preparation each processed on separate processing lines, the so-called "rib line" and the so-called "sheet line".

Based on this prior art, the task of

The invention is to produce short-fiber cut tobacco, in particular from tobacco strips or from leaf tobacco, the produced cut tobacco in the production of tobacco strands or cigarettes a good filling power or filling capacity and wherein the effort for the production of cut tobacco, especially from leaf tobacco , should be as simple as possible.

This object is achieved by a method for producing cut tobacco, whereby tobacco material, preferably tobacco material liberated from stalks and / or ribs or tobacco strips liberated therefrom or leaf tobacco liberated therefrom, is provided and the following method steps are carried out:

(a) the tobacco product is classified and distributed in at least two classes of tobacco commodities;

b) at least one tobacco quantity of a tobacco product size class is comminuted once or more times so that one or more tobacco product size subclasses are formed,

(c) a quantity of tobacco of a quantity of tobacco material subclass containing a quantity of tobacco of a size of tobacco commodity and / or a tobacco bakmenge of another Tabakgutgrößenunterklasse be mixed in a predetermined mixing ratio with each other to a tobacco blend amount and

d) in a subsequent step, the tobacco blend amount

Cut tobacco is cut.

For the production of filter cigarettes, cut tobacco is made from leaf tobacco, the cut tobacco being made from individual fractions of tobacco strips, i. dried Blattgut, is produced. For example, the tobacco strips are fractionated by sieving prior to the production of cut tobacco.

Characterized in that after the preparation of the dried sheet material or tobacco strips as provided tobacco good the sheet material of

Leaf tobacco is classified or fractionated by sieving with respect to the particle size, is then produced from the mixture of the individual fractions or Tabakgutlängenklassen in subsequent steps, a cut tobacco with a defined fiber length distribution. The Schnitttabakfaserlängenverteilung is determined by the particle size distribution of tobacco strips.

The invention is based on the idea that the tobacco product or tobacco strips made of leaf tobacco after conditioning and before cutting, for example, by screening devices in several

Size classes are divided and stored separately. In this case, tobacco is fed to a tobacco product size class of at least one further comminuting stage, so that within the processed tobacco product size class the mean tobacco product diameter is reduced and thus one or more classes of tobacco material sublengths are formed. The comminution can be done, for example, by cutting with a cutting device (cleaver, slicer) or, for example, by smashing in threshing or threshing done.

Thus, it is possible to form several subclasses within a formed tobacco product size class. For example, a first size subclass is formed by crushing the tobacco good of a tobacco product size class once. A second subclass of the same tobacco product size class is formed by further shredding tobacco of the first class of tobacco commodity subclass. Thus, it is possible within a Tabakgutgrößenklasse to form different subclasses of different orders by repeated crushing and thus produce a specially desired tobacco strip size distribution.

In a further step are then formed from the

Tabakgutgrößenunterklassen and / or from the tobacco of a Tabakgutgrößenklasse provided a tobacco blend amount to be cut, which are then cut in a cutting device to tobacco fibers or cut tobacco from pure leaf tobacco.

The fact that the tobacco is shredded by several classes of tobacco commodity before the formation of the cut tobacco at least once again, it is achieved that a total cut tobacco with shorter tobacco fibers (on average) within the so-called "blade line" is achieved so that an altered fiber length distribution in the cut tobacco achieved that is, more short fibers are present in the cut tobacco than in a cut tobacco, in which no fractionation by size and no crushing (omitting the procedural feature a) and b)) is formed.

In this case (according to the state of the art) the condition ned and freed from the ribs sheet tobacco immediately after conditioning a cutting device supplied to achieve cut tobacco therefrom. In this case, the fiber length distribution of the cut tobacco can not be influenced and is only or directly dependent on the existing size distribution of the tobacco strips.

The cut tobacco produced by the process according to the invention has a smaller proportion of longer fibers than the cut tobacco which is obtained after conditioning from the tobacco strips according to the previous manufacturing method, wherein the proportion of very short tobacco fibers, the so-called short tobacco, not significantly by the inventive Shredding steps of larger tobacco strips is increased.

The divided fractions or tobacco product size classes are stored separately, with a predetermined size distribution or a predetermined degree of comminution of the tobacco product then being selectively produced within the tobacco product size classes. The shredding of the tobacco product size classes can be carried out with choppers or Entrippanlagen or the like.

The thus shredded or pretreated and treated fractions or Tabakgutgrößenunterklassen are then mixed with the previously screened, small-fiber and not further crushed fractions of the tobacco stock provided and then fed to a tobacco cutter. Thus, cut tobacco is obtained from leaf tobacco having a limited maximum fiber length determined by the largest tobacco strips.

Moreover, the cut tobacco produced according to the invention also has a small proportion of short fibers or short tobacco, ie less than 3 mm, so that during the further processing of the cut tobacco a high filling power or filling capacity is achieved with cigarettes produced therefrom.

In addition, in one embodiment, the method is characterized in that the mean tobacco diameter of a tobacco product size class whose tobacco is not comminuted is smaller than the mean tobacco diameter of a tobacco product size class whose tobacco is comminuted, in particular the average tobacco diameter of the tobacco product size classes differ ,

Furthermore, a simplified process management is achieved by interposing the tobacco of at least one or more classes of tobacco commodity and / or tobacco commodity subclasses so that sufficient tobacco is present to provide a corresponding amount of tobacco mix to be cut.

In a preferred embodiment it is provided that the tobacco quantities of at least one or more tobacco product size classes and / or tobacco product size sub-classes which are added to the tobacco mixture quantity are metered and / or regulated in order to provide the tobacco mixture quantity in a predetermined mixing ratio. For this purpose, a corresponding metering device for the tobacco crop size classes and / or tobacco crop size subclasses is provided in each case. In addition, in a development, a control device for the Tabakgutgrößenklassen and / or Tabakgutgrößenunterklassen provided, wherein preferably the cut tobacco mixture amount is detected by means of one or more corresponding sensors in view of their mixing ratio of the tobacco fiber lengths or on the Tabakfaserlängen- distribution. Based on the recorded distribution of tobacco By means of the control device, the dosing devices for the tobacco of the tobacco product size classes and / or tobacco product size subclasses are adjusted or regulated by means of the regulating device.

In particular, it is of advantage if tobacco products prepared, in particular conditioned, tobacco or processed, in particular conditioned, tobacco strips, in particular made from leaf tobacco, are provided.

Characterized in that the tobacco of the tobacco product size classes is further crushed, in which case the degree of comminution of the amount of tobacco is set within a Tabakgutgrößenklasse to a predetermined degree of comminution, the fiber length distribution of the subsequently produced Schnitttabaks targeted specifically influenced or controlled or regulated.

In addition, it is provided in a further method step that tobacco particles are added to the cut tobacco, in particular sieved and / or unclassified, so that a homogeneous filling of a cigarette to be subsequently produced is achieved.

In a further embodiment, further tobacco quantities are added to the cut tobacco produced from the tobacco strips in order to provide a specific tobacco mixture for the production of cigarettes. In this case, for example, other lead tobaccos or foils or winnowings can be added to the cut tobacco produced according to the invention.

The invention will be described below without limiting the general inventive idea by means of embodiments with reference to the drawings all details of the invention not explained in detail, reference is expressly made to the drawings. Show it:

Fig. 1 shows schematically a process flow for the production of cut tobacco from sheet material and

Fig. 2 shows schematically a procedure of another

Embodiment of the method for producing cut tobacco.

In the following figures, identical or similar elements or corresponding parts are provided with the same reference numerals, so that a corresponding renewed idea is dispensed with.

In the process flowcharts shown in Figs. 1 and 2, the sheet material of tobacco leaves freed from ribs and the like, i. from so-called tobacco strips, processed. Here, the conditioned and still uncut tobacco strips are passed from a conditioning device 10 to a fractionating device 12.

In fractionator 12, the tobacco strips are conveyed, for example, by means of a multi-stage screening device, e.g. a level sieve, classified or fractionated. Here, the classification is determined by the diameter of the sieves of the screening device.

In the flowchart shown in FIG. 1, two tobacco product size classes 14, 24.1 are formed. For example, tobacco product size class 14 is fed tobacco leaves with a diameter less than or equal to 34 inches, while the second tobacco product size class 24.1 tobacco leaves with a diameter greater than ^Λ A inches be supplied.

In addition, small tobacco particles are deposited on the fractionating device 12, which are used in a further step (see below).

The tobacco good of the tobacco product size class 14 is then further promoted to a metering device 18 or an intermediate storage.

Tobacco from the formed tobacco product size class 24.1 with the larger tobacco strips, whose sheet material diameter is greater than ^Λ A inch, is then further comminuted in a comminution device 26.1, so that a corresponding Tabakgutgrößenunter- class is formed, which is temporarily stored in a metering device 28.1. The processed tobacco of the tobacco commodity size class

24.1 is then mixed from the metering device 28.1 together with the tobacco from the unprocessed or non-shredded tobacco product size class 14 from the metering device 18 in a mixing device 20 in a specific mixing ratio. Following this, the mixed tobacco from the

Mixer 20 further promoted to a cutter 22, in which the mixed tobacco is cut into cut tobacco. Subsequently, small and non-fractionated tobacco particles from the fractionating device 12 are added to the cut tobacco.

In the flow chart shown in FIG. 2, a finer fractionation or classification takes place, so that a plurality of tobacco product size classes 24.1 to 24.3 are formed, which are subsequently comminuted one or more times in the comminuting devices 26.1 to 26.3, so that the tobacco product subclasses formed are subdivided into the Dosing devices 28.1 to 28.3 each between be stored.

From the metering devices 28.1 to 28.3, the corresponding subsets of the shredded or processed tobacco of the Tabakgutgrößenunterklassen are then removed and the

Mixing device 20 supplied. Subsequently, the tobacco from the mixing device 20 is conveyed to the cutting device 22, so that finely cut tobacco is produced from leaf tobacco, to which additional fine, unclassified tobacco particles are added.

Subsequently, the formed cut tobacco is fed to the corresponding devices for further processing and processing.

On the output side of the cutting device 22, before the admixture of the fine, unclassified tobacco particles to the cut tobacco, a sensor device 32 is provided in order to detect the tobacco fiber length distribution of the cut tobacco. The measurement signals are transmitted by the sensor device 32 to a control device 34, so that the distribution of the tobacco fiber lengths is determined by means of the measured values. This determines the fiber structure of the cut tobacco. In the case of corresponding deviations from predetermined reference values, the metering devices 18, 28.1 to 28.3 are correspondingly divided or regulated by the control device 34 such that in each case the tobacco quantities of at least one or more classes of tobacco commodity 14, 24.1 to 24.3 and / or the tobacco product subclasses of the tobacco mixture quantity formed to control the feed of the crushed strip fractions or the degree of comminution and the tobacco fiber length distribution in the cut tobacco.

According to the flowcharts shown in FIGS. 1 and 2, small ner tobacco pieces of leaf tobacco or tobacco strips not further crushed, while the larger tobacco strips are supplied in the Tabakgutgrößenklassen 24.1 to 24.3 at least one further crushing stage. Here, the crushing of tobacco strips after conditioning of the leaf tobacco and before

Mixing or cutting tobacco strips into fine-grained cut tobacco. By the method according to the invention with comminution of the larger parts of the tobacco strips of larger sheet material, a shorter cut tobacco is achieved with a higher proportion of shorter fibers, whereby the proportion of short fibers, ie of tobacco fibers smaller than 3 mm, in the produced cut tobacco is not appreciably increased. This ensures that the formed cut tobacco with a changed fiber length distribution with shorter fibers has a high filling capacity or filling force.

LIST OF REFERENCE NUMERALS

10 conditioning device

12 fractionating device

14 Tobacco commodity size class

18 metering device

20 mixing device

22 cutting device

24.1, 24.2, 24.3 Tobacco commodity size class

26.1, 26.2, 26.3 Crushing device

28.1, 28.2, 28.3 dosing device

32 sensor device

34 control device

Claims

Production of cut tobacco patent claims

1. A method for producing cut tobacco, wherein tobacco material, preferably liberated from stalks and / or ribs tobacco material, is provided and the following method steps are performed:

(a) the tobacco product is classified and distributed in at least two categories of tobacco commodity (14, 24.1, 24.2, 24.3),

b) at least one tobacco quantity of a tobacco product size class (14, 24.1, 24.2, 24.3) is comminuted once or more than once so that one or more groups of tobacco product size subclasses are formed,

c) a tobacco quantity of a tobacco product subclass with a tobacco quantity of a tobacco product size class (14, 24.1, 24.2, 24.3) and / or a quantity of tobacco of a further tobacco product size subclass are mixed in a predetermined mixing ratio with one another into a tobacco mixture quantity, and

d) in a subsequent step, the tobacco blend amount is cut into cut tobacco.

2. The method according to claim 1, characterized in that the average Tabakgutdurchmesser a Tabakgutgrößenklasse (14) whose tobacco is not crushed smaller than the average Tabakgutdurchmesser a Tabakgutgrößenklasse (24.1, 24.2, 24.3), the tobacco is crushed, in particular the mean tobacco commodity diameter of the tobacco commodity size classes (14, 24.1, 24.2, 24.3) differ.

3. The method according to claim 1 or 2, characterized in that the tobacco of at least one or more tobacco good size classes (14, 24.1, 24.2, 24.3) and / or Tabakgut- size subclass is temporarily stored.

4. The method according to any one of claims 1 to 3, characterized in that the amounts of tobacco of at least one or more classes of tobacco commodity and / or Tabakgutgrößen- subclasses, which are added to the tobacco blend amount, dosed and / or regulated.

5. The method according to any one of claims 1 to 4, characterized in that prepared as tobacco material, in particular conditioned, tobacco or processed, in particular conditioned, tobacco strips are provided.

6. The method according to any one of claims 1 to 5, characterized in that the Schnitttabak, in particular sieved and / or unclassified, tobacco particles are added.

7. The method according to any one of claims 1 to 6, characterized in that the manufactured cut tobacco further amounts of tobacco are added.