EP4164421A1

EP4164421A1 - Cigarette paper - tobacco sheet lamination

Info

Publication number: EP4164421A1
Application number: EP21732247.8A
Authority: EP
Inventors: Pranav KULKARNI; Taku HIDESHIMA
Original assignee: JT International SA
Current assignee: JT International SA
Priority date: 2020-06-10
Filing date: 2021-06-09
Publication date: 2023-04-19
Anticipated expiration: 2041-06-09
Also published as: JP2023529388A; EP4164421B1; WO2021250070A1

Abstract

The present invention relates to a smoking article with a distal and a proximal end and extending in a longitudinal direction from said proximal end to said distal end. The smoking article comprises a longitudinal axis, along which at least one tobacco segment comprising tobacco and at least one filter segment comprising at least one or more parts are arranged. The tobacco segment and/or the filter segment is/are surrounded by a wrapper, which comprises at least a first layer comprising paper material and a second layer comprising reconstituted tobacco, wherein the first layer is adjoined to the second layer. The first and second layer are attached to one another with glue, wherein the glue is positioned between the first and second layer and is formed as a full layer. The first and second layer have the same or at least similar dimensions. The invention also relates to a method of enhancing a tobacco taste of a smoking article comprising the steps: a) Providing the first and second layer, b) applying a partial or full layer of glue on the first and/or second layer and c) attaching the first and the second layer on one another.

Description

Cigarette Paper - tobacco sheet Lamination

Description

The present invention relates to a smoking article with a longitudinal axis, along which at least one tobacco segment comprising tobacco and at least one filter segment comprising at least one or more parts are arranged. The tobacco segment and/or the filter segment is/are surrounded by a wrapper, which comprises at least a first layer comprising paper material and a second layer comprising reconstituted tobacco. The first layer is adjoined to the second layer. The present invention also relates to a method of enhancing a tobacco taste of a smoking article.

In known cigarettes different methods are used to alter mainstream smoke of cigarettes. One possibility is to pass the mainstream smoke through adsorbent particles and adsorbent filter material to adsorb and remove chemical components from the mainstream smoke. Activated carbon particles are typically used and are usually embedded in a cellulose acetate filter segment or provided as charcoal beads in a cavity between two cellulose acetate filter segments while the smoke passes through the filter towards the mouth end of the filter.

Other smoke altering components can also be incorporated into the filter. Those smoke altering components can in particular contain flavorants provided in the form of beads, which are arranged between filter plugs, within threads extending along the filter length or within breakable polymeric capsules. While beads and threads provide inherent smoke altering upon consumption by a user, breakable capsules provide users with an opportunity to actuate smoke alteration “on demand”, by crushing of the capsule manually or by biting the filter before or during use of the smoking article. However, beads and threads as well as breakable capsules do not provide a uniform flavor enrichment of the smoke throughout the whole smoking process.

Further, in view of the reduction of processual complexity and an overall sustainability of tobacco products the manufacturing of the polymeric capsules becomes more and more unfavorable. Moreover, more recently, heat-not-burn smoking articles, which have a similar structure to conventional combustible tobacco products, with a tobacco containing part attached to a filter part as a mouthpiece, but are made to be heated with a heating member or in a heating chamber of an electronic heating device rather than combusted have been marketed worldwide.

As the smoking process of heat-not-burn articles significantly differs from that of combustible products, it is challenging to develop methods to alter the mainstream smoke, which can be applied to both combustible and heat not burn articles. Moreover, it is far more challenging to provide methods to enhance the taste of tobacco in both combustible and heat not burn articles without a loss of mechanical properties of the final products, and at the same time to keep the processual complexity of both combustible and heat not burn articles at a low level.

It is therefore the objective of the invention to provide a solution to enhance the flavor of combustible and heat not burn smoking products during the whole smoking process. It is further important to reduce the overall processual complexity by applying a common solution to both combustible and heat not burn smoking products.

The afore-mentioned problems are eliminated by a smoking article with a distal end and a proximal end and extending in a longitudinal direction from said proximal end to said distal end. The smoking article comprises a longitudinal axis, along which at least one tobacco segment comprising tobacco and at least one filter segment comprising at least one or more parts are arranged. The tobacco segment and/or the filter segment is/are surrounded by a wrapper, which comprises at least a first layer comprising paper material and a second layer comprising reconstituted tobacco, wherein the first layer is adjoined to the second layer.

According to the invention, the first and second layer have the same or at least similar dimensions preferably such that they are adjoinable on top of each other and preferably without protrusions. The use of reconstituted tobacco on the paper wrapper provides additional tobacco taste while smoking the article. Moreover, as the reconstituted tobacco is positioned over a whole length of the smoking article, it can provide the intensive taste of tobacco during the complete smoking session. Further, a combination of reconstituted tobacco and paper provides increased mechanical properties in comparison with conventional paper wrapper.

According to a preferred embodiment, the second layer forms an inner layer of the wrapper and the first layer forms an outer layer, and in particular such that the second layer contacts the tobacco segment and/or the filter segment so that the smoking article have a familiar appearance to the consumer and/or can be branded or printed. It may also be possible that the second layer is arranged on an outside or rather forms an outside of a wrapped smoking article to provide a more natural appearance.

Preferably, the filter segment may comprise at least one, preferably two or more filter parts. Ideally, the filter segment comprises a hollow and in particular a tubular filter part and/or a filled filter part. At least one or both parts comprise or are made of cellulose material, preferably cellulose acetate. The filter segment may comprise a recess filter or a filled filter part and a cavity to provide a cooling effect of the hot smoke. Such a construction with cooling and filter effects guarantees that the hot smoke cools down before it reaches a mouth of a consumer. Moreover, materials which are needed for the production of separate paper tubes can be saved so that the overall production costs are reduced.

Preferably, the tobacco segment and/or the second layer comprise tobacco leafs, tobacco pulp, tobacco extract, tobacco oil, cured tobacco, finely cut tobacco leaves, reconstituted tobacco and/or homogenized tobacco or combinations thereof. The tobacco of the tobacco segment and/or the second layer may further contain essentially at least one sort of tobacco, preferred a blend of at least two or more different sorts of tobacco. With a blend of different sorts of tobacco the taste is adjustable and can be adjusted to a preferred taste of the consumer.

It is further conceivable that the second layer comprises at least one taste enhancer and/or additional flavors. The additional flavors and/or taste enhancer may contain menthol, natural and/or artificial plant flavors, saccharides, animal flavors, other flavorings known for use in conventional e-liquids e.g. cinnamon, sage, herb, chamomile, kudzu (Pueraria lobata), Hydrangeae dulcis folium, clove, lavender, cardamom, caryophyllus, nutmeg, bergamot, geranium, honey essence, rose oil, lemon, orange, cassia bark, caraway, jasmine, ginger, coriander, vanilla extract, spearmint, peppermint, cassia, coffee, celery, cascarilla, sandalwood, cocoa, ylang ylang, fennel, anise, licorice, St John’s bread, prune extract, and peach extract; saccharides, e.g., glucose, fructose, isomerized saccharide, and caramel; cocoa, e.g., powder and extract; esters, e.g., isoamyl acetate, linalyl acetate, isoamyl propionate, and linalyl butyrate; ketones, e.g., menthone, ionone, damascenone, and ethyl maltol; alcohols, e.g., geraniol, linalool, anethole, and eugenol; aldehydes, e.g., vanillin, benzaldehyde, and anisaldehyde; lactones, e.g., g-undecalactone and g-nonalactone; animal flavors, e.g., musk, ambergris, civet, and castoreum; and hydrocarbons, e.g., limonene and pinene, and/or combinations thereof, without being limited thereto. Such additional flavors can be used alone or in combination so that the taste of the smoking article is adjustable to an optimum of a preferred taste of the consumer.

According to a preferred embodiment, the second layer is coated with at least one taste enhancer and/or additional flavor/s. Ideally, an inner or outer surface of the second and/or first layer is at least partially, in particular completely coated with the taste enhancer and/or additional flavors. That way, an intensive taste experience can be provided through the whole smoking session as the taste enhancer and/or additional flavor/s will be uniformly released.

In a preferred embodiment, the taste enhancer/s and/or additional flavor/s are liquid based and/or comprise particles. The liquid based taste enhancer/s and/or additional flavor/s may be based on water, alcohol or other humectants, such as propylene glycol and/or glycerol. Both liquid based and particle based taste enhancer and additional flavors can be then be uniformly applied to a whole surface of the first and/or second layer by spraying or trickling. Ideally, the first and/or second layer is at least partially, preferably fully impregnated with the taste enhancer/s and/or additional flavor/s to enable a uniform release of flavor during the smoking session.

According to the invention, the first and second layer are attached to one another with glue. Preferably, the glue fixes the first and second layer to one another so that the first and second layer are non-slidable. Preferably, the glue is made of a thermoplastic and/or is flexible in a solid state to avoid a brittle behavior of the wrapper. It is further beneficial that the glue is odorless and/or tasteless to avoid any effect of the glue to the taste of the smoking article.

In a further preferred embodiment, the glue comprises a substance selected from a group of polyvinyl ester, preferably at least one vinyl acetate, preferably polyvinyl acetate and/or ethylene-vinyl acetate. Those glues are odorless and tasteless so that the glue does not have any effect on the smoking. Further, in particular polyvinyl acetate and/or ethylene-vinyl acetate are preferably used to keep the wrapper flexible after their solidification.

In another preferred embodiment, the glue is positioned between the first and second layer and/or is formed as a full or partial layer.

According to the invention, the glue is positioned between the first and second layer and is formed as a full layer. A full layer of glue prevents wrinkling of one of the layers of the wrapper during wrapping of the smoking article. With a partial layer material can be saved in the production of the wrapper. In another embodiment, the glue is formed as partial layer, which is extended over a whole contact area of the first and second layer so that wrinkling can be avoided and the production costs can be kept at a low level.

Another preferred embodiment, the partial glue layer comprises a pattern. Ideally, the pattern comprises a grid or is striped, checkered and/or dotted. The pattern may also comprise any other geometric and/or constant and repetitive pattern, e.g. a honeycomb or mesh structure that can be easily applied to the first and/or second layer. Ideally, the pattern comprises a mesh or grid structure, which is preferably made up of two lines of glue, that are arranged such to form voids between the lines.

Preferably, each line has a thickness larger than 0.1 mm, preferably larger than 0.2 mm, preferably larger than 0.5 mm and/or smaller than 2 mm, preferably smaller than 1.5 mm, preferably smaller than 1 mm. Preferably, each void between the glue lines has a width larger than 0.5 mm, preferably larger than 0.8 mm, preferably larger than 1 mm and/or smaller than 6 mm, preferably smaller than 5 mm, preferably smaller than 4 mm.

In a preferred embodiment, an amount of glue between the first and second layer is larger than 0,5 g/m², preferably larger than 1 g/m², preferably larger than 2 g/m² and/or smaller than 10 g/m², preferably smaller than 7 g/m², preferably smaller than 4 g/m². Such amount is an optimum to save production costs and at the same time to provide a good fixation of the first and second layer and to allow sufficient gas transfer through the wrapper. Further, a density of the glue is higher than 0.8 g/m³, preferably higher than 0.9 g/m³, preferably higher than 1 g/m³ and/or lower than 2 g/m³, preferably lower than 1.5 g/m³, preferably smaller than lower than 1.3 g/m³. ln a preferred embodiment, a gluing area between the first and second layer is higher than 10%, preferably higher than 15%, preferably higher than 20% of a total area of wrapper and/or lower than 50%, preferably lower than 40%, preferably lower than 35% of the total area of the wrapper. With less than 50% of the total area being glued, there is enough space to ensure a sufficient ventilation through the wrapper and between e.g. the tobacco segment or rather an inside and an outside of the smoking article.

In a preferred embodiment, a strength of the glue of the wrapper, which was determined by a scott bond test after european Norm ISO 16260:2016, is higher than 100 J/m², preferably higher than 150 J/m², preferably higher than 200 J/m² and/or lower than 1000 J/m², preferably lower than 800 J/m², preferably lower than 600 J/m².

In a preferred embodiment, a weight of the second layer is higher than 25 g/m², preferably higher than 35 g/m², preferably higher than 45 g/m² and/or lower than 200 g/m², preferably lower than 150 g/m², preferably lower than 100 g/m². This weight provides a good protection of the smoking article against mechanical stress. Further, such weight provides an increased capacity of the second layer to adsorb oil or other fluid substances that may cause spot and stain so that the first layer is protected against those substances. The weight of the second layer further results in stable porosity of the second layer such to allow an infusion of taste enhancer/s and/or additional flavor/s in the second layer.

According to a preferred embodiment, a tensile strength of the second layer is higher than 7 N/15mm, preferably higher than 9 N/15mm, preferably higher than 11 N/15mm and/or lower than 17 N/15mm, preferably lower than 15 N/15mm, preferably lower than 13 N/15mm. The second layer is therefore stretchable up to 0.8%, preferably up to 1%, preferably up to 1.2% so that the second layer has an increased tensile strength in comparison with conventional paper wrapper.

In a preferred embodiment, a thickness of the second layer is larger than 20pm, preferably larger than 30pm, preferably larger than 40pm and/or smaller than 150pm, preferably smaller than 120pm, preferably smaller than 100pm. A thickness larger than 100pm may generate problems during processing of the wrapper due to a more difficult processability of the second layer. A lower thickness may cause breaks of the second layer on machines.

In a preferred embodiment, a weight of the first layer is higher than 5 g/m², preferably higher than 10 g/m², preferably than 20 g/m² and/or lower than 70 g/m², preferably lower than 60 g/m², preferably lower than 50 g/m². This weight provides a good protection of the smoking article against mechanical stress. A lower weight would lead to fragile covering of the smoking article and may also to lead to the risk that spots can appear. Moreover, higher weight may lead to a less favorable behavior of the wrapper during production.

In a preferred embodiment, a porosity of the first layer is higher than 5 CU, preferably higher than 10 CU, preferably higher than 15 CU and/or lower than 500 CU, preferably lower than 300 CU, preferably lower than 150 CU. Such porosity provides a protection of the smoking article against spot and stain so that a good appearance is guaranteed. Further, the opacity of the first layer is higher than 40%, preferably higher than 50%, preferably than 60% and/or lower than 100%, preferably lower than 95%, preferably lower than 90%.

According to a preferred embodiment, a tensile strength of the first layer is higher than 6 N/15mm, preferably higher than 8 N/15mm, preferably higher than 10 N/15mm and/or lower than 15 N/15mm, preferably lower than 13 N/15mm, preferably lower than 11 N/15mm. The first layer is therefore stretchable up to 0.6%, preferably up to 0.8%, preferably up to 1% so that the second layer has an increased tensile strength in comparison with conventional paper wrapper.

According to a preferred embodiment, a content of burn additive of the first and/or second layer is higher than 0.1%, preferably higher than 0.5%, preferably higher than 0.8% and/or lower than 8%, preferably lower than 4%, preferably lower than 2% of the weight of the layer. A low content of burn additives, such as calcium carbonate, magnesium carbonate, titanium oxide, Sodium potassium tartrate, sodium and/or potassium citrate reduces the amount of ash after consumption/burning.

As the second layer is made of tobacco and the first layer preferably comprises a content of additives lower than 1.5% of the weight of the layer, the wrapper or rather the smoking article produces almost no ash to fall. This is in particular due to the beneficial combination of a tobacco layer that burns almost completely and a paper layer with a very low content of additives. The first or second layer may contain titanium oxide or magnesium carbonate to provide a white colored ash.

The afore mentioned problems are also eliminated by a wrapper for a combustible smoking product and/or a Heat not Burn product, wherein the wrapper extends in longitudinal direction and in a width direction and comprises a paper based material, which is Tollable. The wrapper comprises at least a first layer and a second layer, wherein the first layer comprises or is made of a paper material and the second layer comprises or is made of reconstituted tobacco. According to the invention, the first and second layer have the same or at least similar dimensions preferably such that they are adjoinable on top of each other and preferably without protrusions. The first and second layer are attached to one another with glue. The glue is positioned between the first and second layer and is formed as a full layer. The use of reconstituted tobacco on the paper wrapper provides additional tobacco taste while smoking the article.

In a preferred embodiment, the wrapper is a laminate material comprising the first layer, the second layer and/or a glue layer. Ideally, the wrapper, the first layer, the second layer and/or the glue layer have properties as described above so that the wrapper provides the aforementioned benefits.

In a further preferred embodiment, the wrapper may be formed as a fillable hollow tube, in particular for the purpose of make-your-own tobacco products, where consumers fill empty cigarette tubes themselves with a tubing machine. In such embodiment, the wrapper is formed as a fillable hollow tube, wherein two opposite longitudinal sides of the wrapper parallel to the longitudinal direction of the wrapper are fixedly glued to each other in an overlapping arrangement. Such hollow tube formed of the wrapper of the invention can advantageously provide consumers of make-your-own tobaccos with taste and flavor improved tubes made of the inventive wrapper comprising an integral reconstituted tobacco layer for the making of their own smoking articles.

The objective is also reached by a method of enhancing a tobacco taste of a smoking article with a distal and a proximal end and extending in a longitudinal direction. The smoking article comprises a longitudinal axis, along which at least one tobacco segment comprising tobacco and at least one filter segment comprising at least one or more parts are arranged. The tobacco segment and/or the filter segment is/are surrounded by a wrapper, which comprises at least a first layer that comprises a paper material and a second layer. The first and second layer have the same or at least similar dimensions. The first and second layer are attached to one another with glue. The glue is positioned between the first and second layer. According to the invention, the glue is formed as a full layer. The method comprises the steps of: a. Providing the first and second layer, wherein the second layer comprises or is made of reconstituted tobacco, b. Applying a full layer of glue on the first and/or second layer, c. Attaching the first and the second layer to on one another.

In a first step, the first layer and the second layer are provided. The second layer comprises or is made of reconstituted tobacco. Further, the tobacco segment and the filter segment are provided. Preferably, the at least one part of the smoking article is formed according to the description above so that the tobacco segment, the filter segment, the first layer and/or the second layer are characterized by the aforementioned benefits and/or properties.

In a next step, in particular a second step, a layer of glue is applied on the first and/or second layer. Ideally, the glue is applied, especially in a liquid state, onto the first layer. The layer of glue may be applied by a roller, nozzle or brush. Preferably the glue is applied by stamping or printing and especially using a stamp that may have a cylindrical or rectangular shape.

The glue layer may be formed as described above to keep production costs at a low level, to provide a sufficient amount of glue and enable a good fixation of the first and second layer without the aforementioned disadvantages.

In a next step, in particular a third step, the first layer is attached to the second layer such that the layer of glue is positioned between the first and the second layer and in particular such that an inner surface of the first layer corresponds to an opposing inner surface of the second layer. Preferably, the inner surface of the first layer is arranged coplanar to the opposing inner surface of the second layer.

According to a preferred embodiment, the method comprises an additional step of applying a flavor and/or a taste enhancer to the first or second layer. Ideally, the taste enhancer and/or flavor comprises at least one of the aforementioned substances, may be more than one. The taste enhancer and/or flavor are provided in a liquid form or are suspended in liquid carrier substance, wherein the liquid based taste enhancer and/or flavor is preferably applied on the second layer. Further, the first or second layer may be coated with the taste enhancer and/or flavor/s to enable a uniform distribution of taste enhancer and/or flavor over the whole layer.

Preferably, the additional step of applying the flavor and/or a taste enhancer takes place before attaching the first layer and the second layer and/or before the manufacture of the final smoking article. It is beneficial to apply the flavor and/or a taste enhancer directly before the attachment of the two layers. Moreover, the flavor and/or a taste enhancer can be applied during a step of size pressing of the second layer, wherein the second layer may first be produced followed by a size pressing step in which the second layer is pressed or cut into its final shape. In another embodiment, the flavor and/or a taste enhancer will be applied to the first and/or second layer at a special coating station. It is also possible to add the taste enhancer/s and/or additional flavor/s to the glue. After mixing them with the glue, the glue is applied onto the first or second layer such to apply the taste enhancer/s and/or additional flavor/s during a step of lamination.

Further advantages, objectives and features of the present invention will be described, by way of example only, in the following description with reference to the appended figures. In the figures, like components in different embodiments can exhibit the same reference symbols.

The figures show:

Fig. 1a, b Schematic view of a wrapper and its different layers.

In Figure 1a a wrapper 1 with a first layer 2 and a second layer 3 is shown. There is a full layer of glue 4 positioned between the first 2 and the second 3 layer. Preferably, the second layer 3 comprises or is completely made of reconstituted tobacco, which ideally comprises remnants of virgin tobacco, which are malleable into a sheet that that forms the second layer 3. The reconstituted tobacco may comprise a blend of different sorts of tobacco.

The second layer further comprises an inner 3a and an outer surface 3b. Ideally, a weight of the second layer 3 is between 30 g/m² and 40 g/m² and preferably between 31 g/m² and 37 g/m² and in particular exactly 37 g/m². A thickness of the second layer 3 may be between 40pm and 100pm, wherein the thickness, the grammage and/or the composition of the tobacco results in a preferred stretch minimum of between 0.5% and 1.5% and in particular 1%. A tensile strength of the second layer 3 is between 11 N/15mm and 17 N/15mm and in particular above 12 N/15mm.

The first layer further comprises an inner 2b and an outer surface 2a. Ideally, a weight of the first layer 2 is between 24 g/m² and 35 g/m² and preferably between 25 g/m² and 30 g/m² and in particular exactly 26 g/m². A porosity of the first layer 2 between 5 CU and 150 CU and preferably between 20 CU and 120 CU with a resulting preferred opacity of between 40% and 90%. The first layer 2 may have a stretch minimum of between 0.5% and 1% and in particular 0.8%. A tensile strength of the first layer 2 is between 9 N/15mm and 12 N/15mm and in particular above 10.3 N/15mm. A content of additives of the first layer 2 is between 0.1 % and 2% of the weight of the first layer 2, in particular the content is above 0.3% and more preferred 1% of the weight of the first layer 2.

Ideally, the first 2 and second 3 layer are arranged in parallel and in particular coplanar to one another such that edges 9 of the first 2 and second 3 layer are arranged one above the other to form common edges 9 of the wrapper 1. Preferably, the full glue layer 4 comprises glue that is distributed over a whole area between the first 2 and second 3 layer so that ideally the glue layer extends over a whole inner surface 2b, 3a of the first 2 and/or second layer 3. The glue may be positioned between the inner surface 2b of the first layer 2 and the inner surface 3a of the second layer 3, wherein the inner surface 2b of the first layer 2 preferably opposes and/or faces the inner surface 3a of the second layer 3.

Further and optionally, the outer surface 3b of the second layer 3 may be directed to a tobacco segment and/or a filter segment of a smoking article or may be directed an external environment. Moreover, the outer surface 2a of the first layer 2 may be directed to a tobacco segment and/or a filter segment of a smoking article or may be directed to an external environment. In any case, the outer surface 2a of the first layer 2 is preferably directed to an opposing direction to which the outer surface 3b of the second layer 3 is directed.

In Figure 1b a wrapper 1 with a first layer 2 and a second layer 3 is shown. Both layers have the same properties as described in figure 1a and/or are arranged similar to the description of figure 1a. A partial glue layer 5 is preferably positioned between the first 2 and the second 3 layer, and in particular between the inner surfaces 2b, 3a of the first 2 and the second 3 layer. The partial glue layer 5 further extends over a whole inner surface 2b, 3a of the first 2 and/or second layer 3. An amount of the glue of the partial glue layer 5 is preferably between 1.1 g/m²and 2 g/m².

The partial glue layer 5 preferably comprises a pattern, which preferably comprises a checkered pattern comprising glue lines 6 and voids 7 that are ideally positioned between the glue lines 6. The voids may be shaped rectangular or rhomboidal and/or are arranged singular and in particular such that the voids 7 are not connected. Each void has at least one, preferably two sides with a width between 0.5 mm and 6 mm, preferably between 0.9 mm and 4.5 mm, preferably at least one or two sides with a width of exactly 0.9 mm and/or 4.5 mm. Preferably, the pattern comprises at least two groups of glue lines 6, wherein the groups of glue lines are oriented angled to each other to form grid. Preferably that angle is larger than 30°, preferably larger than 40°, preferably larger than 50° and/or smaller than 91°, preferably smaller than 80°, preferably smaller than 70°. Therefore, each line 6 may be arranged angled to at least one, preferably more than one other line 6.

Each line 6 may have a thickness between 0.1 mm and 1.1 mm and preferably between 0.2 and 1 mm and in particular exactly 0.2 mm or 1 mm. It may be possible that lines 6 of one group have a thickness between 0.1 mm and 0.5 mm, while lines of the other group have a thickness between 0.5 mm and 1.1 mm. It may also be possible that the thickness of the lines 6 is 90% smaller, preferably 70% smaller, preferably 50% smaller than at least one side of the voids 7. Lines 6 of one group may be arranged in parallel, wherein a distance of the lines 6 of one group ideally corresponds to the width of at least one side of the voids 7.

The applicant reserves his right to claim all features disclosed in the application document as being an essential feature of the invention, as long as they are new, individually or in combination, in view of the prior art. Furthermore, it is noted that in the figures features are described, which can be advantageous individually. Someone skilled in the art will directly recognize that a specific feature being disclosed in a figure can be advantageous also without the adoption of further features from this figure. Furthermore, someone skilled in the art will recognize that advantages can evolve from a combination of diverse features being disclosed in one or various figures.

List of reference symbols

Wrapper First layer a Outer surface of the first layer b Inner surface of the first layer Second layer a Inner surface of the second layer b Outer surface of the second layer Full layer of glue Partial layer of glue Glue lines

Voids between the glue lines Pattern of the glue layer Edges of the wrapper

Claims

Cigarette Paper - tobacco sheet Lamination Claims

1. Smoking article with a distal end and a proximal end and extending in a longitudinal direction from said proximal end to said distal end, wherein the smoking article comprises a longitudinal axis, along which at least one tobacco segment comprising tobacco and at least one filter segment comprising at least one or more parts are arranged, wherein the tobacco segment and/or the filter segment is/are surrounded by a wrapper (1), characterized in that the wrapper (1) comprises at least a first layer (2) comprising paper material and a second layer (3) comprising reconstituted tobacco, wherein the first layer (2) is adjoined to the second layer (3), wherein the first (2) and second (3) layer are attached to one another with glue, wherein the glue is positioned between the first (2) and second (3) layer and is formed as a full (4) layer, wherein the first (2) and second (3) layer have the same or at least similar dimensions.

2. Smoking article according to claim 1, characterized in that the second layer (3) comprises at least one taste enhancer and/or additional flavor/s.

3. Smoking article according to claim 2, characterized in that the second layer (3) is coated with taste enhancer/s and/or additional flavor/s.

4. Smoking article according to any of previous claims , characterized in that the glue comprises a substance selected from a group of polyvinyl ester, preferably at least one vinyl acetate, preferably polyvinyl acetate and/or ethylene-vinyl acetate.

5. Smoking article according to any of previous claims, characterized in that an amount of glue between the first and second layer (3) is larger than 0,5 g/m², preferably larger than 1 g/m², preferably larger than 2 g/m² and/or smaller than 4 g/m², preferably smaller than 7 g/m², preferably smaller than 10 g/m².

6. Smoking article according to any of previous claims, characterized in that a weight of the second layer (3) is higher than 25 g/m², preferably higher than 35 g/m², preferably higher than 45 g/m² and/or lower than 200 g/m², preferably lower than 150 g/m², preferably lower than 100 g/m².

7. Smoking article according to any of previous claims, characterized in that a weight of the first layer (2) is higher than 5 g/m², preferably higher than 10 g/m², preferably than 20 g/m² and/or lower than 70 g/m², preferably lower than 60 g/m², preferably lower than 50 g/m².

8. Wrapper (1) for a combustible smoking product and/or a Heat not Burn product, wherein the wrapper (1) extends in longitudinal direction and in a width direction and comprises a paper based material, which is Tollable, characterized in that the wrapper (1) comprises at least a first layer (2) and a second layer (3), wherein the first layer (2) comprises or is made of a paper material and the second layer (3) comprises or is made of reconstituted tobacco, wherein the first (2) and second (3) layer are attached to one another with glue, wherein the glue is positioned between the first (2) and second (3) layer and is formed as a full layer (4), wherein the first (2) and second (3) layer have the same or at least similar dimensions..

9. Wrapper (1) according to claim 8, characterized in that the wrapper (1) is a laminate material comprising the first layer (2), the second layer (3) and/or a glue layer.

10. Wrapper (1) according to any one of claims 8-9, characterized in that the wrapper (1) is formed as a tillable hollow tube, wherein two opposite longitudinal sides of the wrapper (1) parallel to the longitudinal direction of the wrapper (1) are fixedly glued to each other in an overlapping arrangement.

11. Method of enhancing a tobacco taste of a smoking article with a distal and a proximal end and extending in a longitudinal direction, wherein the smoking article comprises a longitudinal axis, along which at least one tobacco segment comprising tobacco and at least one filter segment comprising at least one or more parts are arranged, wherein the tobacco segment and/or the filter segment is/are surrounded by a wrapper (1), which comprises at least a first layer (2) that comprises a paper material and a second layer (3), wherein the first (2) and second (3) layer are attached to one another with glue, wherein the glue is positioned between the first (2) and second (3) layer and is formed as a full (4) layer, wherein the first (2) and second (3) layer have the same or at least similar dimensions, comprising the steps of: d. Providing the first and second layer (3), wherein the second layer (3) comprises or is made of reconstituted tobacco e. Applying a full layer (4) of glue on the first (2) and/or second (3) layer, f. Attaching the first (2) and the second (3) layer on one another.

12. Method according to claim 11, characterized by an additional step of applying a flavor and/or a taste enhancer to the first (2) or second (3) layer.