Tobacco paper-tobacco sheet laminate

A wrapper with a paper and reconstituted tobacco layer for smoking articles ensures consistent flavor and mechanical integrity, addressing flavor and complexity challenges in both combustion and heat-and-burn products.

JP7784389B2Active Publication Date: 2025-12-11JT INTERNATIONAL SA
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Patent Information

Application Number
JP2022575228
Authority / Receiving Office
JP · JP
Patent Type
Patents
Current Assignee / Owner
Priority Date
2020-06-10
Filing Date
2021-06-09
Publication Date
2025-12-11
Estimated Expiration
2041-06-09

AI Technical Summary

Technical Problem

Existing smoking articles, both combustion and heat-and-burn types, face challenges in providing consistent tobacco flavor and mechanical integrity while minimizing process complexity, especially when incorporating smoke-altering components.

Method used

A smoking article with a wrapper comprising a paper material layer and a reconstituted tobacco layer, where the layers are adjacent and secured with an adhesive, allowing for uniform distribution of tobacco flavor and enhanced mechanical properties.

Benefits of technology

The solution provides a consistent tobacco flavor throughout the smoking session and improves mechanical strength, reducing production costs and complexity by using reconstituted tobacco and a flexible adhesive.

✦ Generated by Eureka AI based on patent content.

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Abstract

The present invention relates to a smoking article having a distal end and a proximal end and extending longitudinally from the proximal end to the distal end. The smoking article has a longitudinal axis along which at least one tobacco segment comprising tobacco and at least one filter segment comprising at least one or more components are arranged. The tobacco segment and / or the filter segment are surrounded by a wrapper, which includes at least a first layer comprising a paper material and a second layer comprising reconstituted tobacco, the first layer being adjacent to the second layer. The first layer and the second layer are attached to each other with an adhesive, the adhesive being disposed between the first layer and the second layer, forming a full-surface layer. The first layer and the second layer have the same or at least similar dimensions. The present invention also relates to a method for improving the tobacco taste of a smoking article, the method comprising the steps of: a) providing a first layer and a second layer; b) applying a partial or full layer of adhesive on the first layer and / or the second layer; and c) adhering the first layer and the second layer to each other.
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Description

[Technical Field]

[0001] The present invention relates to a smoking article having a longitudinal axis along which at least one tobacco segment comprising tobacco and at least one filter segment comprising at least one or more components are arranged. The tobacco segment and / or filter segment are surrounded by a wrapper, which includes at least a first layer comprising a paper material and a second layer comprising reconstituted tobacco. The first layer is adjacent to the second layer. The present invention also relates to a method for improving the taste of tobacco in a smoking article. [Background technology]

[0002] In known cigarettes, various methods are used to modify the mainstream smoke of the cigarette. One possibility is to pass the mainstream smoke through adsorbent particles and adsorbent filter materials to adsorb and remove chemical components from the mainstream smoke. Typically, activated carbon particles are used, usually embedded in cellulose acetate filter segments or provided as charcoal beads in the cavity between two cellulose acetate filter segments, and the smoke travels through the filter towards the mouth end of the filter.

[0003] Other smoke-altering components can also be incorporated into the filter. These smoke-altering components can include flavoring agents provided in the form of beads, which are disposed between the filter plugs, in threads extending along the length of the filter, or in frangible polymer capsules. While beads and threads provide a unique smoke modification at the time of consumption by the user, frangible capsules offer the user the opportunity to activate smoke modification "on demand" by manually breaking the capsule or by biting the filter before or during use of the smoking article. However, beads and threads, as well as frangible capsules, do not provide a consistent, rich smoke flavor throughout the smoking process.

[0004] Furthermore, considering the reduction in process complexity and the overall sustainability of tobacco products, the manufacture of polymer capsules becomes increasingly disadvantageous. Moreover, more recently, heated non-combustion smoking articles have been sold worldwide. These have a structure similar to that of conventional combustion tobacco products, in which a tobacco-containing component is attached to a filter component as a mouthpiece, but are designed to be heated by a heating element or in a heating chamber of an electronic heating device rather than being burned.

[0005] Because the smoking process for heat-and-burn articles is significantly different from that for combustion products, it is challenging to develop methods for modifying mainstream smoke that are applicable to both combustion and heat-and-burn articles. Moreover, it is much more challenging to provide methods for improving tobacco taste in both combustion and heat-and-burn articles without compromising the mechanical properties of the final product, while keeping the process complexity of both combustion and heat-and-burn articles at a low level.

[0006] It is therefore an object of the present invention to provide a solution for improving the flavor of combustion smoking products and heat-and-burn smoking products throughout the smoking process, and more importantly, to reduce the complexity of the overall process by applying a common solution to both combustion smoking products and heat-and-burn smoking products. Summary of the Invention [Means for solving the problem]

[0007] The aforementioned problems are eliminated by a smoking article having a distal end and a proximal end and extending longitudinally from the proximal end to the distal end. The smoking article has a longitudinal axis along which at least one tobacco segment comprising tobacco and at least one filter segment comprising at least one or more components are disposed. The tobacco segment and / or the filter segment are surrounded by a wrapper, which includes at least a first layer comprising a paper material and a second layer comprising reconstituted tobacco, the first layer being adjacent to the second layer.

[0008] According to the present invention, the first and second layers preferably have the same or at least similar dimensions so that they are contiguous and adjacent to each other, preferably without protrusions. The use of reconstituted tobacco on the paper wrapper provides additional tobacco flavor during smoking of the article. Moreover, because the reconstituted tobacco is distributed throughout the length of the smoking article, it can provide a strong tobacco flavor throughout the entire smoking session. Furthermore, the combination of reconstituted tobacco and paper provides increased mechanical properties compared to conventional paper wrappers.

[0009] According to a preferred embodiment, the second layer forms the inner layer of the wrapper and the first layer forms the outer layer, in particular the second layer contacting the tobacco segment and / or filter segment, so that the smoking article has a conventional appearance to the consumer and / or can be branded or printed. It may also be possible for the second layer to be located on the outside or form the exterior of the wrapped smoking article to provide a more natural appearance.

[0010] Preferably, the filter segment may comprise at least one, preferably two or more, filter elements. Ideally, the filter segment comprises a hollow, particularly tubular, filter element and / or a filled filter element. At least one or both elements are made of a cellulose material, preferably cellulose acetate. The filter segment may comprise a recessed filter or a filled filter element and a cavity to provide a cooling effect for hot smoke. Such a cooling and filtering structure ensures that hot smoke is cooled before reaching the consumer's mouth. Furthermore, the material required for manufacturing a separate paper tube can be saved, reducing overall production costs.

[0011] Preferably, the tobacco segment and / or the second layer comprises tobacco leaf, tobacco pulp, tobacco extract, tobacco oil, cured tobacco, shredded tobacco, reconstituted tobacco, and / or homogenized tobacco, or a combination thereof. The tobacco segment and / or the tobacco of the second layer may further comprise essentially at least one type of tobacco, preferably at least two or more different types of tobacco. The use of a blend of different types of tobacco allows for flavor adjustment, allowing for adjustment to a flavor preferred by consumers.

[0012] It is further contemplated that the second layer may comprise at least one taste enhancer and / or additional flavoring agent, including, but not limited to, menthol, natural and / or artificial botanical flavors, sugars, animal flavors, and other flavoring agents known for use in conventional e-liquids, such as cinnamon, sage, herbs, chamomile, kudzu (Pueraria lobata), sweet tea (Hydrangeae dulcis folium), cloves, lavender, cardamom, cloves, nutmeg, bergamot, geranium, honey essence, rose oil, lemon, orange, cinnamon bark, caraway, jasmine, ginger, coriander, vanilla extract, spearmint, peppermint, cassia, coffee, celery, cascarilla, sandalwood, cocoa, ylang ylang, fennel, anise, licorice, carob (St. John's The additional flavorings may be selected from the group consisting of bread, prune extract, and peach extract; monosaccharides such as glucose, fructose, isomerized sugar, and caramel; cocoa, such as powder and extract; esters such as isoamyl acetate, linalyl acetate, isoamyl propionate, and linalyl butyrate; ketones such as menthone, ionones, damascenone, and ethyl maltol; alcohols such as geraniol, linalool, anethole, and eugenol; aldehydes such as vanillin, benzaldehyde, and anisaldehyde; lactones such as γ-undecalactone and γ-nonalactone; animal flavors such as musk, ambergris, civet, and beaver tang; and hydrocarbons such as limonene and pinene, and / or combinations thereof. These additional flavorings may be used alone or in combination, thereby allowing the taste of the smoking article to be optimally tailored to the consumer's preferences.

[0013] According to a preferred embodiment, the second layer is coated with at least one taste enhancer and / or additional flavorant. Ideally, the inner or outer surface of the second layer and / or the first layer is at least partially, particularly completely, coated with the taste enhancer and / or additional flavorant. In this way, the taste enhancer and / or additional flavorant is uniformly released, providing a strong taste experience throughout the smoking session.

[0014] In a preferred embodiment, the taste enhancer and / or additional flavorant are liquid-based and / or comprise particles. Liquid-based taste enhancers and / or additional flavorants may be based on water, alcohol, or other humectants, such as propylene glycol and / or glycerol. Both liquid-based and particle-based taste enhancers and additional flavorants can then be uniformly applied to the entire surface of the first layer and / or second layer by spraying or trickling. Ideally, the first layer and / or second layer are at least partially, preferably entirely, impregnated with the taste enhancer and / or additional flavorant to allow for uniform release of the flavorant during a smoking session.

[0015] According to the present invention, the first and second layers are attached to one another with an adhesive. Preferably, the adhesive secures the first and second layers to one another so that they cannot slide. Preferably, the adhesive is made of a thermoplastic and / or is flexible in its solid state to avoid brittle behavior of the wrapper. It is further advantageous for the adhesive to be odorless and / or tasteless to avoid any impact the adhesive has on the taste of the smoking article.

[0016] In a further preferred embodiment, the adhesive comprises a substance selected from the group consisting of polyvinyl ester, preferably at least one vinyl acetate, preferably polyvinyl acetate, and / or ethylene vinyl acetate. The adhesives are odorless and tasteless so that they do not have any effect on smoking. Furthermore, in particular polyvinyl acetate and / or ethylene vinyl acetate are preferably used to keep the wrapper flexible after they have solidified.

[0017] In another preferred embodiment, the adhesive is disposed between the first and second layers and / or is formed as a full layer or a partial layer.

[0018] According to the present invention, the adhesive is disposed between the first and second layers and is formed as a full layer. The full layer of adhesive prevents wrinkling of one of the layers of the wrapper during wrapping of the smoking article. The partial layer allows for material savings in the production of the wrapper. In another embodiment, the adhesive is formed as a partial layer that extends over the entire contact area between the first and second layers, thereby avoiding wrinkling and keeping production costs low.

[0019] In another preferred embodiment, the partial adhesive layer includes a pattern. Ideally, the pattern includes a grid, or is striped, checkered, and / or dotted. The pattern may also include any other geometric pattern and / or a regular, repeating pattern, such as a honeycomb or mesh structure, which can be easily applied to the first and / or second layers. Ideally, the pattern includes a mesh or grid structure, preferably consisting of two lines of adhesive, arranged to form a gap between the lines.

[0020] Preferably, the thickness of each line is greater than 0.1 mm, preferably greater than 0.2 mm, preferably greater than 0.5 mm, and / or less than 2 mm, preferably less than 1.5 mm, preferably less than 1 mm. Preferably, the width of each gap between the adhesive lines is greater than 0.5 mm, preferably greater than 0.8 mm, preferably greater than 1 mm, and / or less than 6 mm, preferably less than 5 mm, preferably less than 4 mm.

[0021] In a preferred embodiment, the amount of adhesive between the first and second layers is 0.5 g / m 2 greater than 1 g / m 2 greater than 2 g / m 2 and / or 10 g / m 2 less than 7 g / m 2 less than 4 g / m 2 Such an amount is optimal for saving production costs and at the same time for providing good fixation between the first and second layers and allowing sufficient gas transmission through the wrapper. Furthermore, the density of the adhesive is less than 0.8 g / m 3 higher than 0.9 g / m 3 higher than 1 g / m 3 Higher than 2 g / m 3 lower than 1.5 g / m 3 lower than 1.3 g / m 3 is smaller than.

[0022] In preferred embodiments, the bonded area between the first and second layers is greater than 10%, preferably greater than 15%, preferably greater than 20% of the total area of ​​the wrapper, and / or less than 50%, preferably less than 40%, preferably less than 35% of the total area of ​​the wrapper. Because less than 50% of the total area is bonded, there is sufficient space to ensure sufficient ventilation through the wrapper and, for example, between the tobacco segments, or rather between the inside and outside of the smoking article.

[0023] In a preferred embodiment, the strength of the adhesive of the wrapper, as determined by the Scott Bond test according to European standard ISO 16260:2016, is 100 J / m 2 greater than 150 J / m 2 greater than 200 J / m 2 and / or greater than 1000 J / m 2 less than 800 J / m 2 less than 600 J / m 2 is smaller than.

[0024] In a preferred embodiment, the weight of the second layer is 25 g / m 2 greater than 35 g / m 2 greater than 45 g / m 2 and / or 200 g / m 2 less than 150 g / m 2 less than 100 g / m 2 The weight is less than 1 / 2 lb. This weight provides good protection for the smoking article against mechanical stress. Furthermore, such weight increases the ability of the second layer to absorb oils or other fluid substances that may cause dirt and stains, thereby protecting the first layer from these substances. The weight of the second layer also provides stable porosity for the second layer, thereby allowing the infusion of taste enhancers and / or additional flavorants into the second layer.

[0025] According to preferred embodiments, the second layer has a tensile strength higher than 7N / 15mm, preferably higher than 9N / 15mm, preferably higher than 11N / 15mm, and / or lower than 17N / 15mm, preferably lower than 15N / 15mm, preferably lower than 13N / 15mm. The second layer is therefore extensible by up to 0.8%, preferably by up to 1%, preferably by up to 1.2%, so that the second layer has increased tensile strength compared to conventional paper wrappers.

[0026] In a preferred embodiment, the thickness of the second layer is greater than 20 μm, preferably greater than 30 μm, preferably greater than 40 μm, and / or less than 150 μm, preferably less than 120 μm, preferably less than 100 μm. A thickness greater than 100 μm may cause problems during processing of the wrapper due to more difficult workability of the second layer. A thinner thickness may cause the second layer to break in the machine.

[0027] In a preferred embodiment, the weight of the first layer is 5 g / m 2 Larger, preferably 10 g / m 2 Larger, preferably 20 g / m 2 Larger and / or 70g / m 2 Smaller, preferably 60 g / m 2 Smaller, preferably 50 g / m 2 This weight provides good protection for the smoking article against mechanical stress. A lower weight may lead to a weaker covering for the smoking article and to the risk of visible stains. Furthermore, a higher weight may lead to less favorable behavior of the wrapper during manufacturing.

[0028] In a preferred embodiment, the porosity of the first layer is greater than 5 CU, preferably greater than 10 CU, preferably greater than 15 CU, and / or less than 500 CU, preferably less than 300 CU, preferably less than 150 CU. Such porosity protects the smoking article from dirt and stains and ensures a good appearance. Furthermore, the opacity of the first layer is greater than 40%, preferably greater than 50%, preferably greater than 60%, and / or less than 100%, preferably less than 95%, preferably less than 90%.

[0029] According to a preferred embodiment, the first layer has a tensile strength higher than 6N / 15mm, preferably higher than 8N / 15mm, preferably higher than 10N / 15mm and / or lower than 15N / 15mm, preferably lower than 13N / 15mm, preferably lower than 11N / 15mm. Thus, the first layer is stretchable by up to 0.6%, preferably by up to 0.8%, preferably by up to 1%, so that the second layer has an increased tensile strength compared to conventional paper wrappers.

[0030] According to a preferred embodiment, the content of burn additives in 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 lower 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 / combustion.

[0031] Because the second layer is made of tobacco and the first layer preferably has an additive content of less than 1.5% of its weight, the wrapper, or rather the smoking article, produces almost no falling ash. This is due in particular to the beneficial combination of the tobacco layer, which burns almost completely, and the paper layer, which has a very low additive content. The first or second layer may contain titanium oxide or magnesium carbonate to produce a white ash.

[0032] The above-mentioned problems are also eliminated by a wrapper for a combustion smoking product and / or a heat-and-burn product, the wrapper comprising a rollable paper-based material extending longitudinally and transversely. The wrapper comprises at least a first layer and a second layer, the first layer including or made from a paper material, and the second layer including or made from reconstituted tobacco. According to the present invention, the first layer and the second layer preferably have the same or at least similar dimensions so that they are adjacent to each other and preferably free of protrusions. The first layer and the second layer are attached to each other with an adhesive. The adhesive is disposed between the first layer and the second layer and forms a full layer. The use of reconstituted tobacco on the paper wrapper provides an additional tobacco taste during smoking of the article.

[0033] In a preferred embodiment, the wrapper is a laminate material comprising a first layer, a second layer, and / or an adhesive layer. Ideally, the wrapper, the first layer, the second layer, and / or the adhesive layer have the properties described above so that the wrapper provides the aforementioned benefits.

[0034] In further preferred embodiments, the wrapper may be formed as a fillable hollow tube, particularly for homemade tobacco products where consumers fill empty tobacco tubes themselves using a tubing machine. In such embodiments, the wrapper is formed as a fillable hollow tube, and two opposing longitudinal sides of the wrapper, parallel to the longitudinal direction of the wrapper, are bonded together in an overlapping configuration to secure the wrapper to one another. Such hollow tubes formed by the wrappers of the present invention can advantageously provide homemade tobacco consumers with tubes with improved taste and flavor made with the wrappers of the present invention containing an integrated reconstituted tobacco layer for creating homemade smoking articles.

[0035] This object is also achieved by a method for improving tobacco taste in a longitudinally extending smoking article having a distal end and a proximal end. The smoking article has a longitudinal axis along which at least one tobacco segment comprising tobacco and at least one filter segment comprising at least one or more components are arranged. The tobacco segment and / or the filter segment are surrounded by a wrapper comprising at least a first layer comprising a paper material and a second layer. The first layer and the second layer have the same or at least similar dimensions. The first layer and the second layer are attached to each other with an adhesive. The adhesive is disposed between the first layer and the second layer. According to the present invention, the adhesive is formed as a full-surface layer. The method includes the following steps: a. providing a first layer and a second layer, the second layer comprising or made from reconstituted tobacco; b. applying a blanket layer of adhesive onto the first layer and / or the second layer; c. Adhering the first layer and the second layer to one another.

[0036] In a first step, a first layer and a second layer are provided. The second layer comprises or is made from reconstituted tobacco. Further, a tobacco segment and a filter segment are provided. Preferably, at least one portion of the smoking article is formed in accordance with the above description, such that the tobacco segment, filter segment, first layer, and / or second layer are characterized by the advantages and / or properties described above.

[0037] In the next step, particularly the second step, a layer of adhesive is applied onto the first layer and / or the second layer. Ideally, the adhesive is applied onto the first layer, particularly in a liquid state. The layer of adhesive may be applied by a roller, nozzle, or brush. Preferably, the adhesive is applied by stamping or printing, particularly using a stamp that may have a cylindrical or rectangular shape. The adhesive layer is formed as described above to keep production costs low and provide a sufficient amount of adhesive to allow good fixation of the first and second layers without the above-mentioned disadvantages.

[0038] In a next step, particularly the third step, the first layer is attached to the second layer so that a layer of adhesive is disposed between the first and second layers, particularly so that the inner surface of the first layer corresponds to the opposing inner surface of the second layer, preferably so that the inner surface of the first layer is flush with the opposing inner surface of the second layer.

[0039] According to a preferred embodiment, the method includes the additional step of applying a flavorant and / or a taste enhancer to the first layer and / or the second layer. Ideally, the taste enhancer and / or flavorant comprises at least one of the above-mentioned substances, and may comprise two or more. The taste enhancer and / or flavorant is provided in a liquid state or suspended in a liquid carrier substance, and liquid-based taste enhancers and / or flavorants are preferably applied to the second layer. Furthermore, the first layer or the second layer can be coated with the taste enhancer and / or flavorant to allow for uniform distribution of the taste enhancer and / or flavorant throughout the layer.

[0040] Preferably, the additional step of applying a flavorant and / or taste enhancer is performed before the first and second layers are attached and / or before the production of the final smoking article. It is beneficial to apply the flavorant and / or taste enhancer immediately before attaching the two layers. Furthermore, the flavorant and / or taste enhancer can be applied during the size-pressing step of the second layer, in which case the second layer may be produced first, followed by a size-pressing step in which the second layer is pressed or chopped into its final shape. In another embodiment, the flavorant and / or taste enhancer is applied to the first and / or second layer in a special coating station. It is also possible to add the flavor enhancer and / or additional flavorant to the adhesive. After mixing them with the adhesive, the adhesive is applied to the first or second layer, and the taste enhancer and / or additional flavorant is applied during the lamination step.

[0041] Further advantages, objects and features of the present invention will be explained, by way of example only, in the following description, with reference to the accompanying drawings, in which similar elements in different embodiments may be designated by the same reference signs, and in which: [Brief explanation of the drawings]

[0042] [Figure 1a] 1 is a schematic diagram of a wrapper and its various layers. [Figure 1b] 1 is a schematic diagram of a wrapper and its various layers. DETAILED DESCRIPTION OF THE INVENTION

[0043] In Figure 1a, a wrapper 1 is shown having a first layer 2 and a second layer 3. There is a full layer of adhesive 4 disposed between the first layer 2 and the second layer 3. Preferably, the second layer 3 comprises reconstituted tobacco or is made entirely of reconstituted tobacco. The reconstituted tobacco ideally contains a residue of virgin tobacco and is malleable so as to be formed into a sheet that forms the second layer 3. The reconstituted tobacco may comprise blends of various types of tobacco.

[0044] The second layer further comprises an inner surface 3a and an outer surface 3b. Ideally, the weight of the second layer 3 is less than 30 g / m 2 ~40g / m 2 , preferably 31 g / m 2 ~37g / m 2 , especially strictly 37 g / m 2 The thickness of the second layer 3 may be between 40 μm and 100 μm, with a preferred minimum stretch of between 0.5% and 1.5%, especially 1%, depending on the thickness, basis weight, and / or tobacco composition. The tensile strength of the second layer 3 is between 11 N / 15 mm and 17 N / 15 mm, especially greater than 12 N / 15 mm.

[0045] The first layer further comprises an inner surface 2b and an outer surface 2a. Ideally, the weight of the first layer 2 is 24 g / m 2 ~35g / m 2 , preferably 25 g / m 2 ~30g / m 2 , especially strictly 26 g / m 2 A porosity of the first layer 2 of 5 CU to 150 CU, preferably 20 CU to 120 CU, leads to a preferred opacity of 40% to 90%. The first layer 2 may have a minimum stretchability of 0.5% to 1%, in particular 0.8%. The tensile strength of the first layer 2 is 9 N / 15 mm to 12 N / 15 mm, in particular greater than 10.3 N / 15 mm. The additive content of the first layer 2 is 0.1% to 2% of the weight of the first layer 2, in particular the content is greater than 0.3%, more preferably 1%, of the weight of the first layer 2.

[0046] Ideally, the first layer 2 and the second layer 3 are arranged parallel, in particular flush with one another, so that the edges 9 of the first layer 2 and the second layer 3 are arranged overlapping one another to form the common edge 9 of the wrapper 1. Preferably, the full-surface adhesive layer 4 comprises adhesive distributed over the entire area between the first layer 2 and the second layer 3, so that ideally the adhesive layer extends over the entire inner surface 2b, 3a of the first layer 2 and / or the second layer 3. The adhesive may be arranged between the inner surface 2b of the first layer 2 and the inner surface 3a of the second layer 3, with the inner surface 2b of the first layer 2 preferably facing against and / or facing the inner surface 3a of the second layer 3.

[0047] Furthermore, optionally, the outer surface 3b of the second layer 3 may face the tobacco segment and / or filter segment of the smoking article, or may face the external environment. Moreover, the outer surface 2a of the first layer 2 may face the tobacco segment and / or filter segment of the smoking article, or may face the external environment. In either case, the outer surface 2a of the first layer 2 preferably faces in the opposite direction to the direction in which the outer surface 3b of the second layer 3 faces.

[0048] In Figure 1b, a wrapper 1 is shown having a first layer 2 and a second layer 3. Both layers have the same properties as described in Figure 1a and / or are arranged in a similar manner as described in Figure 1a. A partial adhesive layer 5 is preferably arranged between the first layer 2 and the second layer 3, in particular between the inner surfaces 2b, 3a of the first layer 2 and the second layer 3. The partial adhesive layer 5 further extends over the entire inner surfaces 2b, 3a of the first layer 2 and / or the second layer 3. The amount of adhesive in the partial adhesive layer 5 is preferably 1.1 g / m 2 ~2g / m 2 is.

[0049] The partial adhesive layer 5 preferably comprises a pattern, ideally a checkered pattern, comprising adhesive lines 6 and voids 7 arranged between the adhesive lines 6. The voids may be rectangular or diamond shaped and / or arranged as single pieces, in particular so that the voids 7 are not connected. Each void has at least one side, preferably two sides, with a width of 0.5 mm to 6 mm, preferably 0.9 mm to 4.5 mm, preferably at least one or two sides with a width of exactly 0.9 mm and / or 4.5 mm.

[0050] Preferably, the pattern comprises at least two groups of adhesive lines 6, the groups of adhesive lines being oriented at an angle to each other so as to form a grid. Preferably, the angle is greater than 30°, preferably greater than 40°, preferably greater than 50°, and / or less than 91°, preferably less than 80°, preferably less than 70°. Thus, each line 6 may be arranged at an angle relative to at least one, and preferably more than one, other line 6.

[0051] Each line 6 may have a thickness of 0.1 mm to 1.1 mm, preferably 0.2 to 1 mm, particularly preferably 0.2 mm or 1 mm. It is possible for one group of lines 6 to have a thickness of 0.1 mm to 0.5 mm, while another group of lines has a thickness of 0.5 mm to 1.1 mm. The thickness of the lines 6 may be 90% smaller, preferably 70% smaller, preferably 50% smaller than the thickness of at least one side of the gap 7. The lines 6 of one group may be arranged parallel to one another, and the distance between the lines 6 of one group may ideally correspond to the width of at least one side of the gap 7.

[0052] The applicant reserves the right to claim all features disclosed herein as essential features of the invention to the extent that they are novel, individually or in combination, in view of the prior art. Furthermore, it should be noted that the figures describe features that may be advantageous individually. Those skilled in the art will readily recognize that a particular feature disclosed in a figure may be advantageous without incorporating additional features from that figure. Furthermore, those skilled in the art will recognize that advantages may develop from a combination of various features disclosed in one or various figures. [Explanation of symbols]

[0053] 1. Rapper 2. First Layer 2a Outer surface of the first layer 2b Inner surface of the first layer 3 Second Layer 3a Inner surface of the second layer 3b Outer surface of second layer 4 Full layer of adhesive 5 partial layers of adhesive 6 Adhesive Line 7. Air gaps between adhesive lines 8 Adhesive layer pattern 9 Edge of wrapper

Claims

1. A smoking article having a distal end and a proximal end and extending longitudinally from said proximal end to said distal end, said smoking article having a longitudinal axis along which at least one tobacco segment comprising tobacco and at least one filter segment comprising at least one or more components are arranged, said tobacco segment and / or said filter segment being surrounded by a wrapper (1); The wrapper (1) comprises at least a first layer (2) comprising a paper material and a second layer (3) comprising reconstituted tobacco, the first layer (2) being adjacent to the second layer (3), the first layer (2) and the second layer (3) being attached to each other with an adhesive, the adhesive being disposed between the first layer (2) and the second layer (3) forming a full surface layer (4), and the first layer (2) and the second layer (3) having 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 flavourant.

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

4. 4. A smoking article according to any one of claims 1 to 3, characterized in that the adhesive comprises a substance selected from the group consisting of polyvinyl esters, preferably at least one vinyl acetate, preferably polyvinyl acetate, and / or ethylene vinyl acetate.

5. The amount of adhesive between the first layer and the second layer (3) is 0.5 g / m 2 greater than 1 g / m 2 greater than 2 g / m 2 and / or greater than 10 g / m 2 less than 7 g / m 2 less than 4 g / m 2 The smoking article according to any one of claims 1 to 4, characterized in that it is smaller than

6. The weight of the second layer (3) is 25 g / m 2 greater than 35 g / m 2 greater than 45 g / m 2 and / or greater than 200 g / m 2 less than 150 g / m 2 less than 100 g / m 2 The smoking article according to any one of claims 1 to 5, characterized in that it is smaller than

7. The weight of the first layer (2) is 5 g / m 2 greater than 10 g / m 2 greater than 20 g / m 2 and / or 70 g / m 2 less than 60 g / m 2 less than 50 g / m 2 The smoking article according to any one of claims 1 to 6, characterized in that it is smaller than

8. A wrapper (1) for a combustion smoking product and / or a heat-not-burn product, the wrapper (1) comprising a rollable paper-based material extending in longitudinal and transverse directions; The wrapper (1) comprises at least a first layer (2) and a second layer (3), wherein the first layer (2) comprises or is made from a paper material, and the second layer (3) comprises or is made from reconstituted tobacco, the first layer (2) and the second layer (3) are attached to each other with an adhesive, the adhesive being disposed between the first layer (2) and the second layer (3) and forming a full surface layer (4), and the first layer (2) and the second layer (3) have the same or at least similar dimensions.

9. 9. The 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 an adhesive layer.

10. 10. The wrapper (1) according to claim 8 or 9, characterized in that the wrapper (1) is formed as a fillable hollow tube and two opposing longitudinal sides of the wrapper (1) parallel to the longitudinal direction of the wrapper (1) are glued together in an overlapping configuration so as to be fixed to each other.

11. 1. A method for improving the taste of tobacco in a longitudinally extending smoking article having a distal end and a proximal end, the smoking article having a longitudinal axis along which at least one tobacco segment comprising tobacco and at least one filter segment comprising at least one or more components are arranged, the tobacco segment and / or the filter segment being surrounded by a wrapper (1), the wrapper (1) comprising at least a first layer (2) and a second layer (3) comprising a paper material, the first layer (2) and the second layer (3) being attached to each other with an adhesive, the adhesive being disposed between the first layer (2) and the second layer (3) and forming a full surface layer (4), the first layer (2) and the second layer (3) having the same or at least similar dimensions, the method comprising: d. providing said first layer and said second layer (3), said second layer (3) comprising or made from reconstituted tobacco; e. applying a blanket layer (4) of adhesive onto said first layer (2) and / or said second layer (3); f. adhering said first layer (2) and said second layer (3) to one another.

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

Citation Information

Patent Citations

  • SMOKING ITEMS WITH RIGID CONDITIONING MATERIAL

    DE102018104823A1

  • Method and apparatus for preparing a finished tobacco product including special form casings and sheet configurations

    US20080142025A1

  • Preservative system for smoke-able shells

    US20180368467A1