DE102018113188A1 - Rod-shaped HNB article and method for producing and inserting a rod-shaped HNB article - Google Patents

Abstract

The invention relates to a rod-shaped HNB article (2) of the tobacco processing industry, a method for producing such a rod-shaped HNB article (2) and a method for inserting such a rod-shaped HNB article (2) in a holder (8). The HNB article (2) comprises in an active section (4) an air-permeable base material (22), a tobacco material (18) for generating an aerosol and a separating layer (20). The base material (22), the tobacco material (18) and the separation layer (20) are arranged in a three-dimensional structure such that, viewed in a cross-section oriented transversely to a longitudinal axial direction (L) of the HNB article (2), from inside to outside successively the base material (22), the tobacco material (18) and the separating layer (20) are arranged.

Description

The invention relates to a rod-shaped HNB article of the tobacco processing industry. Furthermore, the invention relates to a method for producing a rod-shaped HNB article and a method for inserting a rod-shaped HNB article in a holder.

HNB articles of the tobacco processing industry are tobacco articles which, when used, heat the tobacco material to a temperature lower than the temperature at which a conventional cigarette burns. For this reason, such articles are referred to as "Heat-Not-Burn Articles" or "HNB Articles" for brevity. The tobacco material is thus not burned in such an article, but merely heated. There is no combustion process, so that, unlike, for example, a conventional cigarette, no combustion products. As a result of the heating of the tobacco material, flavors and ingredients evaporate from the tobacco material and are available in an air stream as an aerosol for consumption.

There are a variety of HNB articles or HNB systems of the tobacco processing industry known. In a known system, a rod-shaped HNB article is inserted into a holder, wherein when inserting the HNB article, a heating element is inserted centrally into an active portion of the HNB article. The active area comprises tobacco material, which is then heated by the heating element to a temperature of about 300 ° C during operation of the holder. The result is tobacco smoke, which is ready for consumption.

In other systems, the tobacco material is not heated from the inside, via a centrally located heating element, but from the outside of the HNB article.

However, such known HNB systems provide relatively poor thermal coupling between the heating element and the tobacco material. This has the consequence that the tobacco material is not exploited to the desired extent and extent for the production of aerosols. In other words, a part of the tobacco material remains unused. A further technical challenge is the uniform heating of the tobacco material. The uniform heating is desirable on the one hand with regard to the optimal utilization of the tobacco material and on the other hand with regard to the control of the heating and Abdampfprozesses.

In the HNB systems described above, the heating of the tobacco material is done with an electric heating element.

An HNB article which comprises a coal-based heat source instead of an electric heating element is known, for example, from US Pat EP 2 893 822 A1 known. In order to obtain improved heat coupling between this coal-based heat source and the tobacco material, the tobacco material is coupled to the heat source by means of a multilayer structure.

It is an object of the invention to provide a rod-shaped HNB article of the tobacco processing industry, a method for producing a rod-shaped HNB article of the tobacco processing industry, and a method for inserting a rod-shaped HNB article of the tobacco processing industry, wherein improved heat coupling and better utilization of a tobacco material present in the HNB article should be achieved.

The object is achieved by a rod-shaped HNB article of the tobacco processing industry, which is further developed in that the HNB article in an active section comprises an air-permeable base material, a tobacco material for generating an aerosol and a release layer, wherein the base material, the tobacco material and the release layer are arranged in a three-dimensional structure in which, viewed in a cross-section oriented transverse to a longitudinal axial direction of the HNB article, the base material, the tobacco material, and the release layer are sequentially arranged from inside to outside.

In the HNB article according to aspects of the invention, it is possible to uniformly arrange the tobacco material on the base material. From the outside, the tobacco material can be heated, so that the resulting tobacco vapor can penetrate into the air-permeable base material and can be transported away from there for consumption in the longitudinal axial direction of the rod-shaped HNB article. The separating layer prevents the heating element from coming into direct contact with the tobacco material. It is possible to set an optimum ratio of tobacco material and base material in order to bring the largest possible surface of the heating element in contact with the tobacco material. Thus, a rapid and uniform heating of the tobacco material is possible, which allows to control the evaporation process of the existing ingredients in the tobacco material and to optimize.

In addition, the tobacco material used is well and fully exploited in the best case.

According to an advantageous embodiment of the rod-shaped HNB article is formed by the fact that the three-dimensional structure in cross section is always similar, in particular the same, at different positions along the longitudinal axial direction.

The structure should be considered similar if the arrangement of the individual components is equal to each other, but for example, individual dimensions of individual components are changed. Also, a rotation of the different cross sections, for example, about a longitudinal axis of the rod-shaped HNB article should not cause the two cross sections are no longer considered to be similar. The two cross-sections should be considered equal if they are identical except for production-technically unavoidable deviations.

In other words, therefore, the rod-shaped HNB article in its longitudinal axial direction is homogeneous and uniform, so that it can be produced, for example, in a continuous process.

According to a further advantageous embodiment, it is provided that the air-permeable base material comprises at least one entrance surface, wherein the tobacco material is arranged to cover the entry surface.

In particular, it is provided in this context that the at least one entrance surface has an elongated shape and a longitudinal direction of the entry surface is oriented at least approximately parallel to a longitudinal axial direction of the HNB article.

The entry surface of the base material is therefore very large, so that an efficient transfer of the tobacco vapor and thus the aroma and active ingredients of the tobacco material in the air flowing in the base material air flow is possible. At the same time, the elongated shape and orientation in the longitudinal axial direction of the HNB article allows a large area of contact with the heating elements of the holder.

According to a further advantageous embodiment, it is provided that the air-permeable base material, viewed in the cross-section oriented transversely to the longitudinal axial direction of the HNB article, is arranged in the center of the active section and extends at least approximately parallel to the longitudinal axial direction of the HNB article, the at least one Entry surface extends on an outer side of the base material.

The arrangement of the air-permeable base material in the center of the HNB article, and the arrangement of the tobacco material along the shell of the air-permeable base material, makes it possible to produce a large contact surface of the tobacco material with one or more heating elements. On the outside, i. on the lateral surface, the base material is namely the largest possible area available, so that the tobacco material can be distributed over a large area. A removal of the aroma and active ingredients on the central air-permeable base material is further ensured.

According to a further advantageous embodiment, it is provided that the base material comprises a plurality of discrete entry surfaces, which are arranged uniformly in particular in the circumferential direction on the outer side of the base material.

The entrance surfaces should be considered discrete if they are separate from each other, i. do not overlap. The entry surfaces can be adapted to the type of holder, more specifically to the type of heating elements of the holder. For example, if the holder has four heating elements arranged uniformly along the circumference of the HNB article, then correspondingly four discrete entrance surfaces uniformly arranged along the circumference of the HNB article are provided, which are in contact with the tobacco material.

According to a further advantageous embodiment, it is provided that the air-permeable base material is a filter material.

As filter material, for example, an acetate filter material can be used. This material is well known in the tobacco processing industry, its handling is technically easy.

According to a further advantageous embodiment, it is provided that an air-permeable separating layer is present between the entry surface and the tobacco material.

The air-permeable separating layer, which is, for example, a perforated foil, for example an aluminum foil, prevents the tobacco material from penetrating into the base material. This is particularly relevant for tobacco material, which has a certain residual moisture.

According to a further embodiment, it is provided that the inlet surface of the base material and an inner side of the air-permeable separating layer and / or an outer side of the air-permeable separating layer and the tobacco material are arranged directly adjoining one another.

By means of said arrangement of the base material, the air-permeable separating layer and the tobacco material, the tobacco material can be distributed over a large area along the inlet surface. This allows a good heat coupling to the heating elements of a holder.

In order to further improve the heat coupling, it is provided according to a further embodiment that the separating layer is a heat conducting layer and is made of a material with high thermal conductivity.

The release layer is, for example, a foil of a metal, furthermore, for example, of aluminum. In general, a material with a good thermal conductivity can be used as a separating layer.

As materials with good thermal conductivity, those materials should be considered which have a thermal conductivity of greater than 10 W / (m · K). In particular, a metal is to be used which has a thermal conductivity of greater than 50 W / (m · K), more particularly greater than 100 W / (m · K), and in particular greater than 200 W / (m · K).

The heat conducting layer improves the thermal coupling of a heating element of the holder with the tobacco material. This applies in particular if, according to a further embodiment, the separating layer is arranged directly adjacent to the tobacco material.

According to a further advantageous embodiment it is provided that the separating layer is an air-impermeable layer.

In other words, the separating layer prevents contact between a heating element of the holder and the tobacco material, whereby contamination of the heating element can advantageously be prevented.

In accordance with a further advantageous embodiment, it is provided that at least the active section of the HNB article is closed in an aroma-tight manner by the separating layer.

In this case, the separating layer advantageously provides an aroma-tight packaging for the HNB article.

According to a further advantageous embodiment, an additional packaging layer is provided, which ensures that at least the active portion of the HNB article is packed aroma-tight.

According to a further embodiment, the rod-shaped HNB article is developed in that the active section comprises on its outside at least one engagement recess for a heating element, wherein the engagement recess is lined with the separation layer.

In particular, in the case of such a rod-shaped HNB article which has preformed engagement recesses, it makes sense if, in addition to the release layer, an aroma-sealing packaging layer is provided.

It is envisaged that the rod-shaped HNB article is designed such that upon depression of the heating elements, the separating layer deforms, so that a reliable thermal contact with the heater is ensured. Also, the underlying tobacco material may deform during this process. The same applies to the air-permeable base material whose draw resistance can be adjusted by the corresponding deformation.

On the other hand, if the HNB article is designed in such a way that the engagement recess for the heating element is preformed, the corresponding parameters, for example the draw resistance of the base material, can already be adjusted accordingly beforehand. The shape of the engagement recess can also be designed such that a sufficiently good thermal contact is established between the heating element and the tobacco material.

According to a further embodiment it is provided that the tobacco material has a pasty consistency, wherein the tobacco material is in particular a tobacco paste.

The tobacco material is, for example, reconditioned tobacco material. However, it is also provided that conventional tobacco material, for example, tobacco leaf, lamina, fine cut or the like, tobacco dust or mixtures of the aforementioned components are used. In particular, it is provided that a pasty tobacco material, for example a tobacco paste, is used whose composition is similar or the same as that of reconditioned tobacco material. A tobacco paste is particularly advantageous because when pressing in the heating elements, the tobacco paste can deform, so that optimal heat coupling between the heating element and the tobacco material can be ensured.

The object is also achieved by a method for producing a rod-shaped HNB article according to one or more of the aforementioned embodiments, this method being developed by producing at least the active portion of the HNB article in a stranding process.

The HNB article includes, for example, a filter in addition to the active portion, which may be an acetate filter. The filter may also be a multi-segment filter, a hollow filter or another filter. The production of the active The section of the HNB article in a threading process is particularly efficient.

The object is further achieved by a method for inserting a rod-shaped HNB article according to one or more of the aforementioned embodiments into a holder comprising at least one electric heating element, this method being developed in that in one step after insertion of the HNB Article in the holder that at least one electric heating element in an engaging movement, which comprises at least one component of movement transverse to a longitudinal axial direction of the HNB article, is pressed into and / or to the HNB article, wherein the tobacco material is plastically deformed.

In such a method, a good heat coupling between the tobacco material and the heating element can be ensured.

According to an advantageous embodiment, the method is further developed in that the tobacco material conforms to an inside of the at least one electrical heating element facing the HNB article during the engagement movement.

In this context, it is provided in particular that the tobacco material is a tobacco paste. This is able to plastically deform and conform to the shape of the inside of the electric heating element in an ideal manner.

Further features of the invention will become apparent from the description of embodiments according to the invention together with the claims and the accompanying drawings. Embodiments of the invention may satisfy individual features or a combination of several features.

In the context of the invention, features which are identified by "particular" or "preferably" are to be understood as optional features.

• 1 einen stabförmigen HNB-Artikel der Tabak verarbeitenden Industrie in einer Seitenansicht,
• 2 ein schematisch vereinfachter Längsschnitt durch einen Halter für einen solchen stabförmigen HNB-Artikel,
• 3 eine schematisch vereinfachte Querschnittsansicht eines stabförmigen Artikels, welcher in Kontakt mit elektrischen Heizelementen eines Halters steht und
• 4 bis 6 schematisch vereinfachte Querschnittsansichten stabförmiger HNB-Artikel gemäß verschiedener Ausführungsformen.

The invention will be described below without limiting the general inventive idea by means of embodiments with reference to the drawings, reference being expressly made to the drawings with respect to all in the text unspecified details of the invention. Show it:

• 1 a rod-shaped HNB article of the tobacco processing industry in a side view,
• 2 a schematically simplified longitudinal section through a holder for such a rod-shaped HNB article,
• 3 a schematically simplified cross-sectional view of a rod-shaped article, which is in contact with electrical heating elements of a holder and
• 4 to 6 schematically simplified cross-sectional views of rod-shaped HNB article according to various embodiments.

In the drawings, the same or similar elements and / or parts are provided with the same reference numerals, so that apart from a new idea each.

1 shows a schematic simplified side view of a rod-shaped HNB article 2 the tobacco processing industry. The HNB article 2 includes an active section 4 to which a filter segment 6 is scheduled. The filter segment 6 is for example an acetate filter. In the active section 4 includes the HNB article 2 an air-permeable base material, a tobacco material for producing an aerosol and a separating layer. The base material, the tobacco material and the separation layer are arranged in a three-dimensional structure such that in a direction transverse to a longitudinal axial direction L of the HNB article 2 oriented cross section, viewed from inside to outside, the base material, the tobacco material and the separating layer are arranged successively.

Before building the HNB article 2 is described in detail, should first 2 be explained. The figure shows a holder in a simplified schematic longitudinal section 8th , which was responsible for the inclusion of the 1 shown HNB article 2 is set up.

The HNB article 2 is with his headboard 10 ahead in the holder 8th inserted or inserted. In the inserted state is the active section 4 of the HNB article 2 completely in the holder 8th added.

To use the HNB article 2 become heating elements 12 so, as indicated by arrows, proceed from the position indicated by dashed line rest position in the engagement position shown by a solid line. Using the heating elements 12 this will be in the active section 4 of the HNB article 2 existing tobacco material heated so that aroma and active ingredients are released. The aerosol generated in this way, which is also to be referred to as tobacco vapor, enters the air-permeable base material and is from an air flow A in the direction of the filter 6 transported and stands at the mouthpiece 14 of the HNB article 2 ready for consumption. The airflow A occurs at the head end 10 in the HNB article 2 and extends at least approximately in the longitudinal axial direction L of the HNB article 2 ,

The heating elements 12 of the owner 8th are electrically operated. This includes the holder 8th a not shown electronics and a corresponding power supply, such as batteries or rechargeable batteries.

The tobacco material of the HNB article 2 is using the heating elements 12 heated to a temperature substantially lower than the temperature at which a conventional cigarette burns. There is no combustion process and there are no combustion products. As a result of the heating of the tobacco material, the flavor and ingredients evaporate from the tobacco material and the tobacco vapor accumulates in the air stream A to consumption. Typical temperatures to which the tobacco material in the HNB article 2 is heated, lie in the range below 300 ° C.

3 shows a schematically simplified cross-sectional view through the active section 4 an HNB article 2 , The illustrated cross-section is at least approximately perpendicular to the longitudinal axial direction A , There is a situation shown in the HNB article 2 in the holder 8th is inserted and the electric heating elements 12 in contact with the HNB article 2 stand.

It exemplifies a situation in which an HNB article 2 in a holder 8th is inserted, the four heating elements 12a - 12d includes. The heating elements 12a - 12d Be in the outside (shell side) of the HNB article 2 as in 2 indicated, impressed. A hot side 16 that only affect the heating element 12a labeled with, enters into thermal contact with the tobacco material 18 , In the process of engaging the heating elements 12a - 12d For example, it is provided that the tobacco material 18 plastically deformed. It is the tobacco material 18 for example, a tobacco paste. The composition of the tobacco paste may be the same as or at least similar to reconditioned tobacco material. Between the hot side 16 the heating elements 12a - 12d and the tobacco material 18 is located as with a dashed line in 3 indicated, a separation layer 20 ,

The separation layer 20 makes sure the hot side 16 the heating elements 12a - 12d from the tobacco material 18 is materially separated, so that, for example, an adhesion of the tobacco material 18 on the hot side 16 the heating elements 12a - 12d can be avoided.

The separation layer 20 is also preferably formed as a heat conducting layer. This is the separation layer 20 For example, made of a material with high thermal conductivity. It is the separation layer 20 for example, an aluminum foil. Further, the release layer 20 in particular an air-impermeable layer. It ensures that the airflow A which is made of the tobacco material 18 transported escaping aroma and active ingredients, exclusively at the head 10 of the HNB article 2 enter and this at the mouthpiece 14 leaves.

In the im 3 HNB article shown in cross section 2 is the base material 22 at the center of the HNB article 2 , It is exemplary star-shaped. Furthermore, it is in the star-shaped base material 22 for example, a filter material. It is further provided, for example, that by the engagement of the heating elements 12a - 12d the base material 22 deformed. This can be a targeted deformation of the base material 22 desired and provided. In this way it is possible, for example, the desired draw resistance of the base material 22 adjust.

The heating elements 12a - 12d heat the tobacco material 18 evenly, the resulting aroma and active substances occur as an aerosol in the form of tobacco vapor (indicated by arrows in the region of the heating element 12c) in the base material 22 on. Of course, the same process also applies to the other heating elements 12a . 12b and 12d instead of. The tobacco material 18 is heated evenly, it is used in an ideal way. In other words, there are no areas of the tobacco material 18 unused, for example, because they were not heated sufficiently and so no flavoring and active ingredients could be released.

Seen from the inside out, as exemplified by arrows along the directions L1 and L2 are hinted at the HNB article 2 the base material 22 , the tobacco material 18 and the separation layer 20 arranged consecutively.

The aroma and active ingredients occur at four discrete entrance surfaces 24a - 24d in the base material 22 on. Along these entrance surfaces 24a - 24d Optionally, there is an air-permeable separating layer. This air-permeable separating layer is, for example, a perforated aluminum foil. The separating layer ensures that the tobacco material 18 not in the base material 22 penetrates.

The HNB article 2 is particularly designed so that the entry surfaces 24a - 24d of the base material 22 , an inside of the air-permeable separating layer, the tobacco material 18 , the inside of the release layer 20 , the hot side 16 the heating elements 12a - 12d and the outside of the release layer 20 immediately adjacent. This ensures ideal heat coupling of the tobacco material 18 to the heating elements 12a - 12d ,

It is further provided in particular that at least the active section 4 of the HNB article 2 through the separation layer 20 aroma-tight is completed. In this case, the separating layer would become 20 as in the area between the heating elements 12c and 12d also indicated here along the outer circumference of the HNB article 2 extend. However, this is by no means mandatory, it may also be an air-impermeable layer in the region of the base material 22 be provided, which extends between the areas in which tobacco material 18 is available.

The related to 3 described three-dimensional structure of the HNB article 2 is at different positions along the longitudinal direction of the HNB article 2 always similar. In particular, the HNB article is 2 designed so that in its active section 4 the cross section always as in connection with 3 described, is configured. This applies except for production-technically unavoidable deviations. This also applies to the state in which the HNB article 2 is in the inserted state, so when ready for consumption in the holder 8th is used.

4 shows a further schematically simplified cross-section of a rod-shaped HNB article 2 , The base material 22 is, as well as in 3 , exemplary star-shaped. Also includes the HNB article 2 discrete entry surfaces 24a - 24d through which the flavorings and active ingredients, which are derived from the tobacco material 18 evaporate, in the base material 22 enter. The separation layer 20 extends in this case along the outer periphery of the HNB article 2 , For example, the release layer 20 designed so that they engage when the heating elements 12 can deform accordingly, much like this 3 was shown and explained.

In 4 is also the air-permeable separating layer 26 indicated, which prevents the tobacco material 18 in the base material 22 penetrates. The tobacco material 18 is arranged so that it is the entrance surfaces 24a - 24d covered. The entrance surfaces 24a - 24d have an elongated shape and extend in the longitudinal axial direction L of the HNB article 2 , This is the air-permeable base material 22 in the center of the active section 4 arranged. This applies to a consideration in a cross section which is at least approximately perpendicular to the longitudinal axial direction L of the HNB article 2 is oriented. The base material 22 extends in the longitudinal axial direction L of the HNB article 2 , where are the entrance surfaces 24a - 24d on an outside of the base material 22 extend. The discreet entrance surfaces 24a - 24d are, for example, in the circumferential direction uniformly on the outside of the base material 22 arranged. It is a uniform entry of the aroma and active ingredients in the base material 22 guaranteed.

The 5 and 6 show further exemplary embodiments of HNB articles 2 , these are also shown in cross section. So shows 5 an HNB article 2 which is for a holder 8th is provided, the only a single heating element 12 includes. Again, between the hot side 16 of the heating element 12 and the tobacco material 18 a separation layer 20 intended. Between the base material 22 and the tobacco material 18 is an air-permeable separating layer 26 intended.

6 shows another embodiment of an HNB article 2 whose cross-section is shown. The structure is as related to 5 described, the only difference is that two heating elements 12a and 12b be used.

The HNB articles can be both as related to the 3 and 4 described, be configured, that is, their cross-section is at least approximately circular and there is a deformation, for example, of the base material 22 , the tobacco material 18 and the release layer 20 one when the heating elements 12a - 12d be indented. However, it can also be provided that on the outside of the active section 4 Engaging recesses for the heating elements 12a - 12d are provided. These engagement recesses are with the separation layer 20 lined. A deformation of the aforementioned elements of the HNB article 2 occurs according to such embodiments not or only to a very small extent.

At least the active section 4 of the HNB article 2 is produced for example in a strand process. The attachment of the filter segment 6 can be done, for example, as in the production of conventional cigarettes.

The holder 8th is particularly designed so that its heating elements 12 . 12a - 12d electric heating elements are. This is in a method for inserting the rod-shaped HNB article 2 in the holder 8th as it related to 2 has been described, with an engagement movement of the heating elements 12a - 12d which comprises at least one component of movement transverse to a longitudinal axial direction L of the HNB article 2 includes, the tobacco material 18 of the HNB article 2 plastically deformed. In this engagement movement of the heating elements 12a - 12d nestles the tobacco material 18 to the hot side 16 the heating elements 12a - 12d on. This creates an ideal heat coupling of the heating elements 12 to the tobacco material 18 ,

All mentioned features, including the drawings alone to be taken as well as individual features that are disclosed in combination with other features are considered alone and in combination as essential to the invention. Embodiments of the invention may be accomplished by individual features or a combination of several features.

LIST OF REFERENCE NUMBERS

2

HNB article

4

active section

6

filter segment

8th

holder

10

head

12, 12a-12d

heating elements

14

mouthpiece

16

hot side

18

tobacco material

20

Interface

22

base material

24a - 24d

entry surface

26

air-permeable separating layer

A

airflow

L

longitudinal axial

L1, L2

directions

QUOTES INCLUDE IN THE DESCRIPTION

This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Cited patent literature

• EP 2893822 A1 [0007]

Claims (18)

Rod-shaped HNB article (2) of the tobacco-processing industry, characterized in that the HNB article (2) comprises in an active section (4) an air-permeable base material (22), a tobacco material (18) for generating an aerosol and a separating layer ( 20), wherein the base material (22), the tobacco material (18) and the release layer (20) are arranged in a three-dimensional structure oriented in a direction transverse to a longitudinal axial direction (L) of the HNB article (2) Cross-section, successively from the inside to the outside, the base material (22), the tobacco material (18) and the separating layer (20) are arranged. Rod-shaped HNB article (2) according to Claim 1 , characterized in that the three-dimensional structure is always similar in cross-section at different positions along the longitudinal axial direction (L), in particular equal. Rod-shaped HNB article (2) according to Claim 1 or 2 , characterized in that the air-permeable base material (22) at least one entry surface (24a - 24d), wherein the tobacco material (18), the inlet surface (24a - 24d) is arranged covering. Rod-shaped HNB article (2) according to Claim 3 , characterized in that the at least one entrance surface (24a - 24d) has an elongated shape and a longitudinal direction of the entry surface (24a - 24d) is oriented at least approximately parallel to a longitudinal axial direction (L) of the HNB article (2). Rod-shaped HNB article (2) according to Claim 4 , characterized in that the air-permeable base material (22), viewed in the transverse to the longitudinal axial direction (L) of the HNB article (2) oriented cross section, in the center of the active portion (4) is arranged and at least approximately parallel to the longitudinal axial direction (L ) of the HNB article (2), wherein the at least one entrance surface (24a - 24d) extends on an outside of the base material (22). Rod-shaped HNB article (2) according to Claim 5 , characterized in that the base material (22) comprises a plurality of discrete entrance surfaces (24a - 24d), which are arranged in particular in the circumferential direction uniformly on the outside of the base material (22). Rod-shaped HNB article (2) according to one of Claims 1 to 6 , characterized in that the air-permeable base material (22) is a filter material. Rod-shaped HNB article (2) according to one of Claims 3 to 7 , characterized in that between the inlet surface (24a - 24d) and the tobacco material (18) an air-permeable separating layer (26) is present. Rod-shaped HNB article (2) according to Claim 8 , characterized in that the entry surface (24a - 24d) of the base material (22) and an inner side of the air permeable separating layer (26) and / or an outer side of the air permeable separating layer (26) and the tobacco material (18) are arranged directly adjacent to each other / is. Rod-shaped HNB article (2) according to one of Claims 1 to 9 , characterized in that the separating layer (20) is a Wärmeleitschicht and is made of a material having high thermal conductivity. Rod-shaped HNB article (2) according to one of Claims 1 to 10 , characterized in that the separating layer (20) is an air-impermeable layer. Rod-shaped HNB article (2) according to one of Claims 1 to 11 , characterized in that at least the active portion (4) of the HNB article (4) is closed in an aroma-tight manner by the separating layer (20). Rod-shaped HNB article (2) according to one of Claims 1 to 12 , characterized in that the tobacco material (18) and the separating layer (20) are arranged directly adjacent to each other. Rod-shaped HNB article (2) according to one of Claims 1 to 13 , characterized in that the active section (4) comprises on its outer side at least one engagement recess for a heating element (12), wherein the engagement recess is lined with the separation layer (20). Rod-shaped HNB article (2) according to one of Claims 1 to 14 , characterized in that the tobacco material (18) has a pasty consistency, wherein the tobacco material (18) is in particular a tobacco paste. Method for producing a rod-shaped HNB article (2) according to one of the Claims 1 to 15 , characterized in that at least the active portion (4) of the HNB article (2) is produced in a stranding process. Method for inserting a rod-shaped HNB article (2) according to one of Claims 1 to 15 in a holder (8) comprising at least one electric heating element (12, 12a - 12d), characterized in that in one step after the Inserting the HNB article (2) into the holder (8) comprising at least one electrical heating element (12, 12a-12d) in an engagement movement comprising at least one component of movement transverse to a longitudinal axial direction (L) of the HNB article (2), in and / or on the HNB article (2) is pressed, wherein the tobacco material (18) is plastically deformed. Method according to Claim 17 , characterized in that the tobacco material (18) in the engagement movement to an HNB article (2) facing the inside of the at least one electrical heating element (12, 12a - 12d) hugs.

Images