DE102008023251A1 - Production of cut tobacco - Google Patents

Abstract

The invention relates to a method for producing cut tobacco, wherein tobacco material, preferably of stalks and / or ribs liberated tobacco material, is provided. The method is characterized in that the following method steps are carried out: a) The tobacco product is classified and distributed in at least two classes 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 shredded one or more times to form one or more classes of tobacco commodity subclass c) a tobacco amount of a tobacco commodity subclass with a tobacco amount of a tobacco commodity size class (14,24,2,24,2,24,3) and / or a tobacco quantity of another tobacco commodity subclass in a predetermined mixture ratio a tobacco blend amount are mixed; and d) in a subsequent step, the tobacco blend amount is cut into cut tobacco.

Description

The The invention relates to a method for producing cut tobacco, wherein tobacco, preferably freed from stems and / or ribs Tobacco good, is provided.

tobacco leaves consist of pure leaf tobacco and tobacco ribs, being processed the leaf tobacco and the tobacco ribs are separated. During tobacco preparation, the tobacco stems as well the leaf tobacco treated separately, usually the leaf tobacco is conditioned, d. H. subjected to a moisture and heat treatment is cut and dried as well. In further process steps the tobacco ribs and the cut leaf material, i. H. the sliced tobacco strips, mixed together and for further Processing z. B. flavors, etc. subjected.

The basic principles of making cut tobacco are in the book "Tobacco Encyclopedia", edited by Ernst Voges, 1984 in the post "Manufacture", pages 408 ff. , in particular under the heading "In the production of cut tobacco", presented in detail.

Common practice In this method, the ribs and the sheet material in the tobacco preparation on separate processing lines, the so-called "rib line" and the so-called "leaf line" processed.

outgoing From this prior art, the object of the invention is to short-fiber cut tobacco, in particular from tobacco strips or from Leaf tobacco, wherein the produced cut tobacco at the production of tobacco strands or cigarettes one good filling power or filling capacity achieved and the cost of making the cut tobacco, especially from leaf tobacco, should be as simple as possible.

• a) das Tabakgut wird in wenigstens zwei Tabakgutgrößenklassen klassifiziert und verteilt,
• b) mindestens eine Tabakmenge einer Tabakgutgrößenklasse wird einmal oder mehrmals zerkleinert, so dass eine oder mehrere Tabakgutgrößenunterklassen gebildet werden,
• c) eine Tabakmenge einer Tabakgutgrößenunterklasse mit einer Tabakmenge einer Tabakgutgrößenklasse und/oder einer Ta bakmenge einer weiteren Tabakgutgrößenunterklasse in einem vorbestimmten Mischungsverhältnis miteinander zu einer Tabakmischungsmenge gemischt werden und
• d) in einem nachfolgenden Schritt die Tabakmischungsmenge zu Schnitttabak geschnitten wird.

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) mixing a quantity of tobacco of a tobacco goods subset with a tobacco quantity of a tobacco product size class and / or a tobacco quantity of a further tobacco product size subclass in a predetermined mixing ratio with one another to a tobacco mixture quantity;
• d) in a subsequent step, the tobacco blend amount is cut into cut tobacco.

to Production of filter cigarettes is cut tobacco from leaf tobacco made, the cut tobacco from individual fractions of Tobacco strips, d. H. dried Blattgut, is produced. For example The tobacco strips are screened before making cut tobacco fractionated.

Thereby, that after the preparation of the dried sheet material or tobacco strips as provided tobacco good the sheet material of the leaf tobacco by means Siebens classified in terms of particle size is then fractionated, then from the mixture of the individual Fractions or tobacco commodity classes in subsequent Steps a cut tobacco with a defined fiber length distribution produced. The cut tobacco fiber length distribution becomes thereby determined by the particle size distribution of tobacco strips.

Of the Invention is based on the idea that the tobacco or the Tobacco strips of leaf tobacco after conditioning and before cutting for example, by screening devices in several size classes be split and stored separately. This is tobacco a tobacco product size class of at least one other Crushed fed, so that within the machined Tobacco product size class of mean tobacco product diameter is reduced and thus one or more Tabakgutlängenunterklassen be formed. The crushing can be done by cutting, for example with a cutting device (cleaver, slicer) or example done by smashing in threshing or threshing.

Consequently is it possible within a formed tobacco commodity size class to form several subclasses. For example, a first size subclass formed by that the tobacco good of a Tabakgutgrößenklasse is crushed once. A second subclass of the same tobacco commodity size class becomes formed by that tobacco good of the first Tabakgutgrößenunterklasse is crushed again. Thus, it is possible within a tobacco commodity size class, different subclasses of different orders by repeated Shredding to form and thus a specially desired Tobacco strip size distribution produce.

In a further step, a tobacco mixture quantity to be cut is then subsequently made available from the formed tobacco product subclasses and / or from the tobacco product of a tobacco product size class Cutting device to tobacco fibers or cut tobacco are cut from pure leaf tobacco.

Thereby, that the tobacco of several tobacco commodity size classes crushed at least once before forming the cut tobacco is achieved, that is a total cut tobacco with shorter Tobacco fibers (on average) achieved within the so-called "leaf line" will, so that a changed fiber length distribution is achieved in the cut tobacco, d. H. more short fibers in the cut tobacco are present as in a cut tobacco, in which no fractionation by size and no crushing (omitting the process feature a) and b)) is formed.

In this case (according to the prior art) is the conditioned and freed from the ribs flat Tobacco material immediately after the conditioning of a cutting device supplied to obtain cut tobacco therefrom. Here can the fiber length distribution of the cut tobacco is not affected and is only or directly from the existing size distribution dependent on the tobacco strips.

Of the produced by the method according to the invention Cut tobacco has a smaller share on longer fibers than the cut tobacco, after conditioning from the tobacco strips according to the previous manufacturing process the proportion of very short tobacco fibers, the so-called short tobacco, not essential by the invention Crushing steps of larger tobacco strips is increased.

The divided fractions or tobacco product size classes are stored separately, and then within the Tabakgutgrößenklassen targeted a predetermined Size distribution or a predetermined degree of comminution of the tobacco product is produced. Here, the crushing of the Tobacco size classes with chopping knives or Entrippanlagen or the like.

The such shredded or pretreated and treated fractions or tobacco commodity subclasses are subsequently with the previously screened, kleinfaserigen and not further crushed Mixed fractions of the tobacco stock provided and then supplied to a tobacco cutter. Thus is cut tobacco obtained from leaf tobacco, which has a limited maximum fiber length, which is determined by the largest tobacco strips, having. In addition, the inventively produced Cut tobacco also has a low content of short fibers or short tobacco, d. H. Fa sern smaller than 3 mm, on, so that during further processing the Schnitttabaks a high filling power or filling capacity obtained from cigarettes.

About that In addition, the method is characterized in one embodiment from that the average Tabakgutdurchmesser a tobacco product size class whose Tobacco is not crushed smaller than the average Tabakgutdurchmesser a tobacco product size class whose tobacco is crushed is, in particular the average Tabakgutdurchmesser the Tabakgutgrößenklassen differ.

Of Furthermore, a simplified procedure is thereby achieved that the tobacco of at least one or more Tabakgutgrößenklassen and / or tobacco commodity subclasses will, so for providing an appropriate tobacco mixture to be cut sufficient tobacco available is.

In A preferred embodiment provides that the quantities of tobacco of at least one or more classes of tobacco commodity and / or tobacco commodity subclasses, that of the tobacco blend be admixed, metered and / or regulated to the tobacco blend amount to provide in a predetermined mixing ratio. For this purpose, a corresponding metering device for Tobacco commodity size classes and / or tobacco commodity subclasses each provided. It is also in a training a control device for the tobacco commodity size classes and / or tobacco commodity subclasses, wherein preferably the cut tobacco blend amount by means of a or several corresponding sensors with regard to their mixing ratio the tobacco fiber lengths or the tobacco fiber length distribution is detected. Based on the recorded distribution of Tabakfa serlängen in Schnitttabak be the metering devices by means of the control device for tobacco of the tobacco commodity size classes and / or tobacco commodity subclasses or regulated.

Especially It is advantageous if recycled as tobacco, in particular conditioned, tobacco or processed, in particular conditioned, Tobacco strips, in particular from leaf tobacco, are provided.

Thereby, that the tobacco of the tobacco commodity size classes again is crushed, in which case the degree of comminution of the amount of tobacco within a tobacco commodity size class to one set predetermined degree of comminution, is specifically the Fiber length distribution of the subsequently produced Cut tobacco specifically influenced or controlled or regulated.

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

In a further embodiment of the tobacco strips produced from the Cut tobacco added more amounts of tobacco to a specific tobacco blend to provide for the production of cigarettes. in this connection can be prepared according to the invention Cut tobacco, for example, other blend tobaccos or foils or Winnowings are added.

The Invention will hereinafter be understood without limitation of the general Erfindungsgedankenens with reference to embodiments below With reference to the drawings described, with respect to all in the text not explained in detail according to the invention Details specifically referred to the drawings becomes. Show it:

1 schematically a process for the production of cut tobacco from leaf material and

2 schematically a process flow of another embodiment of the method for producing cut tobacco.

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

At the in 1 and 2 In the process flow diagrams shown, the sheet material of tobacco leaves freed of ribs and the like, ie of so-called tobacco strips, is processed. Here are the conditioned and still uncut tobacco strips of a conditioning 10 to a fractionator 12 given.

In the fractionator 12 The tobacco strips, for example, by means of a multi-stage screening device, eg. As a floor screen, classified or fractionated. Here, the classification is determined by the diameter of the sieves of the screening device.

At the in 1 The flow chart shown becomes two tobacco product size classes 14 . 24.1 educated. For example, the tobacco commodity size class 14 Tobacco leaves supplied with a diameter smaller / equal to ½ inch, during the second tobacco crop size class 24.1 Tobacco leaves are supplied with a diameter greater than ½ inch.

In addition, be at the fractionator 12 also small tobacco particles deposited, which are used in a further step (see below).

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

Tobacco from the formed tobacco product size class 24.1 with the larger tobacco strips whose Blattgutdurchmesser is greater than ½ inch, is then in a crushing device 26.1 further comminuted, so that a corresponding Tabakgutgrößenunterklasse is formed in a metering device 28.1 is temporarily stored. The processed tobacco of the tobacco commodity size class 24.1 is then out of 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 mixed in a certain mixing ratio. Subsequently, the mixed tobacco from the mixing device 20 to a cutting device 22 further promoted, in which the mixed tobacco is cut into cut tobacco. Subsequently, the cut tobacco corresponding small and unfractionated tobacco particles from the fractionator 12 added.

At the in 2 flow diagram shown is a finer fractionation or classification, so that several Tabakgutgrößenklassen 24.1 to 24.3 are formed, which are then in the crushing devices 26.1 to 26.3 are comminuted one or more times, so that the tobacco product sub-classes formed in the metering devices 28.1 to 28.3 each stored between.

From the dosing devices 28.1 to 28.3 Subsequently, the corresponding subsets of the shredded or processed tobacco of Tabakgutgrößenunterklassen be removed and the mixing device 20 fed. Subsequently, the tobacco from the mixing device 20 to the cutting device 22 promoted, so that finely cut tobacco made from leaf tobacco, the addition of fine, unclassified tobacco particles are added.

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

On the output side of the cutting device 22 is before the addition of fine, unclassified tobacco particles to Schnitttabak a sensor device 32 provided to detect the tobacco fiber length distribution of the cut tobacco. The measuring signals are from the sensor device 32 to one control device 34 transmitted 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. With corresponding deviations from predetermined reference values by means of the control device 34 the metering devices 18 . 28.1 to 28.3 adjusted accordingly or regulated so 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 formed tobacco crop subclasses of the tobacco blend amount are metered to control the feed of the shredded strip fractions or the degree of comminution as well as the tobacco fiber length distribution in the cut tobacco.

According to the flowcharts shown in FIG 1 and 2 klei ner pieces of tobacco from leaf tobacco or tobacco strips are not further crushed, while the larger tobacco strips in the Tabakgutgrößenklassen 24.1 to 24.3 be fed to at least one further crushing stage. Here, the comminution of tobacco strips after conditioning of the leaf tobacco and before mixing or cutting the tobacco strips to feinfaserigem cut tobacco occurs. As a result of the method according to the invention with comminution of the larger parts of the tobacco strips of larger sheet material, a shorter cut tobacco with a higher proportion of shorter fibers is achieved, the proportion of short fibers, ie tobacco fibers smaller than 3 mm, not appreciably increased in the produced cut tobacco. This ensures that the formed cut tobacco with a changed fiber length distribution with shorter fibers has a high filling capacity or filling force.

10

conditioning device

12

fractionator

14

Tabakgutgrößenklasse

18

metering

20

mixing device

22

cutter

24.1, 24.2, 24.3

Tabakgutgrößenklasse

26.1, 26.2, 26.3

comminution device

28.1, 28.2, 28.3

metering

32

sensor device

34

control device

QUOTES INCLUDE IN THE DESCRIPTION

This list The documents listed by the applicant have been automated generated and is solely for better information recorded by the reader. The list is not part of the German Patent or utility model application. The DPMA takes over no liability for any errors or omissions.

Cited non-patent literature

• - "Tobacco Encyclopedia", ed. By Ernst Voges, 1984 [0003]
• - "Manufacture", pages 408 ff. [0003]

Claims (7)

Method for producing cut tobacco, whereby tobacco material, preferably tobacco material freed from stalks and / or ribs, is provided and the following method steps are carried out: a) the tobacco product is divided into at least two tobacco product size classes ( 14 . 24.1 . 24.2 . 24.3 ), and b) at least one quantity of tobacco of a class of tobacco commodities ( 14 . 24.1 . 24.2 . 24.3 ) is comminuted once or more than once to form one or more classes of tobacco commodity sizes, c) a tobacco quantity of a tobacco commodity subclass with a tobacco quantity of a tobacco commodity size class ( 14 . 24.1 . 24.2 . 24.3 ) and / or a quantity of tobacco of another tobacco matter subclass are mixed together in a predetermined mixing ratio to a tobacco blend amount, and d) in a subsequent step, the tobacco blend amount is cut into cut tobacco. A method according to claim 1, characterized in that the average tobacco material diameter of a tobacco product size class ( 14 ), the tobacco of which is not comminuted, is smaller than the mean tobacco product diameter of a tobacco product size class ( 24.1 . 24.2 . 24.3 ), the tobacco of which is comminuted, in particular the mean tobacco material diameter of the tobacco product size classes ( 14 . 24.1 . 24.2 . 24.3 ) differ. A method according to claim 1 or 2, characterized in that the tobacco of at least one or more Tabakgutgrößenklassen ( 14 . 24.1 . 24.2 . 24.3 ) and / or tobacco commodity subclasses. Method according to one of claims 1 to 3, characterized in that the amounts of tobacco of at least one or more tobacco commodity size classes and / or tobacco commodity subclasses that are admixed to the tobacco blend, dosed and / or regulated become. Method according to one of claims 1 to 4, characterized in that processed as tobacco, in particular conditioned, tobacco or processed, in particular conditioned, Tobacco strips are provided. Method according to one of claims 1 to 5, characterized in that the Schnitttabak, in particular sieved and / or unclassified, tobacco particles are added. Method according to one of claims 1 to 6, characterized in that the cut tobacco produced more Amounts of tobacco are added.