A non-burning heating consumable in sachet form and its manufacturing process

Abstract

The present invention relates to pocket-shaped, burn-free heating consumables and their manufacturing methods. Figure: 1A

Description

Title of the invention: NON-BURNING HEATING CONSUMABLE IN SACHET SHAPE AND ITS MANUFACTURING METHOD Technical field

[0001] This disclosure relates to the field of devices for heating tobacco without burning it and concerns a pocket-shaped consumable for a vaping device, as well as a method for manufacturing it. Prior art

[0002] A large number of devices for heating tobacco without burning it have been developed to avoid the formation of harmful constituents during tobacco combustion. For example, applications published under numbers WO 2016 / 026810 and WO 2016 / 207407 describe such devices. Sticks filled with tobacco are placed in these devices; the tobacco is then heated by the device to a temperature below the combustion temperature without being burned, leading to the formation of an aerosol when the user inhales air through the device. The aerosol generated during the heating of the tobacco replaces cigarette smoke and has advantageous organoleptic properties when inhaled by the user. This allows the user to inhale nicotine and tobacco flavors while significantly reducing their exposure to harmful components.

[0003] For the user to adopt these heating devices, it is important that the experience obtained with these devices be as close as possible to the experience obtained with a conventional cigarette, that is to say that the organoleptic properties of the aerosol generated for each puff, the resistance to inhalation for each puff and the number of puffs must be equivalent to those of the conventional cigarette.

[0004] Conventionally, heating devices are loaded with a rod-shaped consumable similar in appearance to a traditional cigarette. This rod-shaped consumable comprises several segments, such as a segment containing reconstituted tobacco to generate the aerosol, a cooling segment to cool the aerosol and prevent the user's mouth from being burned, and a filter segment comprising a cellulose acetate substrate primarily to prevent the introduction of reconstituted tobacco dust into the user's mouth. The rod-shaped consumable also consists of several layers of different papers and aluminum. Thus, the production of these rod-shaped consumables can be lengthy and complex, as it requires numerous steps. Furthermore, the Rod-shaped consumables are not biodegradable due to the use of cellulose acetate and aluminum.

[0005] In addition, there are heating devices that are loaded by the user directly with ground reconstituted tobacco, like a pipe. The disadvantage of introducing ground tobacco into such devices is that the ground tobacco not only ends up in the device's designated compartment, but pieces can also stick to the user's hand or fall outside the device, making loading inconvenient and complicated. This cumbersome use can cause frustration for the device's user. Furthermore, it is difficult to introduce a consistent dose of reconstituted tobacco into these devices, leading to variations in organoleptic properties and thus vaper dissatisfaction. Technical problem

[0006] There is therefore a need for biodegradable consumables, simple to produce, simple to use in a tobacco heating device without burning it and which generate an aerosol with satisfactory and constant organoleptic properties, satisfactory aspiration resistance for each puff and a satisfactory number of puffs.

[0007] It is therefore to the inventors' credit that they found it possible to meet this need by means of a non-burning, sachet-shaped heating consumable. Summary

[0008] A non-burning heating consumable is proposed comprising: - a paper sachet having an internal volume, - a reconstituted plant leaf contained within the internal volume of the sachet, in which the reconstituted plant leaf comprises: - one or more fibrous supports, each fibrous support comprising plant fibers, - a plant extract, and - an aerosol-generating agent.

[0009] The experiences provided by the non-burning heating consumable according to the invention and by a commercially available rod-shaped consumable are comparable in terms of the organoleptic properties of the generated aerosol, the duration of the experience, and the comfort of the experience due to comparable draw resistance. The consumable exhibits a consistently high intensity of flavor as well as a consistently high volume.

[0010] In addition, the non-burning heating consumable is advantageously simple to use since it can be easily inserted into and extracted from a dedicated compartment of a tobacco heating device without burning it and it does not generate any dust.

[0011] Furthermore, unlike a conventional rod-shaped consumable, the The non-burning heating consumable of the invention can, due to its composition, degrade very rapidly in the environment. This is particularly advantageous, as the environmental impact of the non-burning heating consumable of the invention is lower than the environmental impact of a conventional rod-shaped consumable.

[0012] According to another aspect, a manufacturing process for a consumable as defined above is proposed, comprising the following steps: a) provide a first layer of paper and a second layer of paper, b) place one or more reconstituted plant leaves on the first layer of paper, c) place the second layer of paper on the reconstituted plant leaf(s), d) seal together the first layer of paper and the second layer of paper, and cut when there is more than one reconstituted plant leaf, to obtain the consumable.

[0013] Advantageously, this process is easy to implement since it only requires simple production tools that are well known to a person skilled in the art.

[0014] This method also has the advantage of enabling high-speed mass production of consumables on an industrial scale. For example, it is possible to achieve a production of more than 10,000 consumables per minute.

[0015] According to another aspect, a non-therapeutic use of the consumable according to the invention is proposed, in a device for heating tobacco without burning it.

[0016] According to yet another aspect, a consumable according to the invention is proposed, for its use in a heating device for therapeutic purposes, the plant being chosen from among medicinal plants. Brief description of the drawings

[0017] Other features, details and advantages will be shown in the following detailed description and in the figures, in which: Fig. IA and Fig. 1B

[0018] [Fig.1A] is a top view of an AI consumable according to an embodiment of the invention having four sides.

[0019] [Fig.1B] is a side view of the AI ​​consumable. Fig. 2A and Fig. 2B

[0020] [Fig.2A] is a top view of an IB consumable according to an embodiment of the invention having three sealed sides and one folded side.

[0021] [Fig.2B] is a side view of consumable IB. Fig. 3

[0022] [Fig.3] is a schematic representation of a manufacturing process for the AI ​​consumable. Fig. 4

[0023] [Fig.4] is a schematic representation of a manufacturing process of the AI consumable. Fig. 5

[0024] [Fig.5] is a schematic representation of a manufacturing process for consumable IB. Detailed description of the invention

[0025] We now refer to [Fig.1A] to [Fig.5].

[0026] A non-burning heating consumable IA, IB is proposed, comprising: - a paper bag 11A, 11B having an internal volume, - one reconstituted plant leaf 4 contained within the inner volume of the sachet 11A, 11B, in which the reconstituted plant leaf 4 comprises: - one or more fibrous supports, each fibrous support comprising plant fibers, - a plant extract, and - an aerosol-generating agent.

[0027] In the context of this application, the term "heat-not-burn consumable" (also referred to as "consumable" in this application and "heat-not-burn consumable" in English) means an element adapted to produce an aerosol when heated and having a shape and dimensions adapted to be introduced into a dedicated housing of a tobacco heating device without burning it.

[0028] The ratio between the mass of the reconstituted plant leaf 4 and the internal volume of the sachet 11A, 11B of the consumable IA, IB of the present invention can be from 0.30 g.cm3 to 1.5 g.cm3, in particular from 0.35 g.cm3 to 1.25 g.cm3, more particularly from 0.39 g.cm3 to 1 g.cm3.

[0029] Advantageously, a ratio within these ranges of values ​​makes it possible to generate, at a comfortable draw resistance, an aerosol exhibiting satisfactory organoleptic properties, i.e. representing a constant and high intensity of taste as well as a constant and high volume.

[0030] Furthermore, this ratio can be easily adjusted to the shape and volume of the dedicated housing for any type of device to heat the tobacco without burning it, so that the consumable 1 can be easily inserted into and removed from said dedicated housing and generates an aerosol with satisfactory organoleptic properties, while maintaining the overall draw resistance at the required level. For example, for a small housing For a dedicated unit, the ratio can be reduced by decreasing the internal volume of sachet 11A, 11B and by reducing, to some extent, the mass of reconstituted plant leaf to generate an aerosol with satisfactory organoleptic properties. For a large dedicated unit, the ratio can be increased by increasing the internal volume of sachet 11A, 11B and by increasing, to some extent, the mass of reconstituted plant leaf to generate an aerosol with satisfactory organoleptic properties.

[0031] The internal volume of the bag 11A, 11B can be determined by determining the volume of the bag 11A, 11B and then subtracting the volume of the paper.

[0032] The geometric shape of the bag 11A, 11B, viewed from above, i.e. in the x,y plane of [Fig.1A] and [Fig.2A], can be a circle, a semicircle, an oval, a half-oval or an n-sided polygon, where n can be an integer from 3 to 10, in particular from 3 to 6, more particularly 4. The n-sided polygon can be a square or a rectangle, n being 4.

[0033] [Fig.1A] and [Fig.2A] represent a rectangular 11A, HB bag, seen from above.

[0034] Advantageously, the geometric shape of the pouch 11A, 11B can be easily adapted to the dedicated housing of the tobacco heating device without burning it.

[0035] The bag 11A, 11B may comprise a first layer of paper 2.6 and a second layer of paper 3.7.

[0036] The paper of the sachet 11A, 11B, and therefore of the first layer of paper 2,6 and of the second layer of paper 3,7, can be any paper suitable for the manufacture of a smoking or vaping article, such as cigarette paper, tobacco wrapper, porous plug wrapper or combinations thereof, in particular cigarette paper, tobacco wrapper or combinations thereof, more particularly tobacco wrapper.

[0037] The first layer of paper of paper 2,6 and the second layer of paper of paper 3,7 may be identical or different.

[0038] The size of the first paper layer 2, 6 and the size of the second paper layer 3, 7 can be adapted to the volume of the reconstituted plant leaf 4 and / or the number of reconstituted plant leaves 4 arranged on the first paper layer 2, 6 and covered by the second paper layer 3, 7.

[0039] Cigarette paper can be made from wood pulp, tobacco fibers, flax fibers, sisal fibers, cocoa bean husk fibers, rice straw, esparto grass fibers, and mixtures thereof, particularly from wood pulp. It can have at least one of the following: a basis weight from 12 g / m² to 50 g / m², particularly from 22 g / m² to 35 g / m², an air permeability from 5 CORESTA units to 500 CORESTA units, particularly from 15 CORESTA units to 80 CORESTA units, and a thickness from 20 µm to 80 pm, in particular from 25 pm to 50 pm. It may also include a filler such as calcium carbonate (CaCO3), magnesium oxide (MgO), and mixtures thereof.

[0040] The tobacco wrapper may be made from wood pulp, tobacco fibers, flax fibers, sisal fibers, cocoa bean husk fibers, rice straw, sparta fibers, and mixtures thereof, in particular from tobacco fibers, wood pulp, and mixtures thereof, especially from a mixture of tobacco fibers and wood pulp. It may have at least one of a weight from 24 g / m2 to 100 g / m2, in particular from 32 g / m2 to 51 g / m2, an air permeability from 0 CORESTA units to 150 CORESTA units, in particular from 10 CORESTA units to 80 CORESTA units, and a thickness from 20 pm to 200 pm, in particular from 75 pm to 150 pm.

[0041] Porous filter paper can be made from wood pulp, flax fibers, sisal fibers, lyocell fibers, viscose fibers and mixtures thereof, in particular from wood pulp. It may have at least one of a weight from 15 g / m2 to 140 g / m2, in particular from 20 g / m2 to 80 g / m2, more especially from 20 g / m2 to 25 g / m2, an air permeability from 200 CORESTA units to 45,000 CORESTA units, in particular from 5,000 CORESTA units to 32,000 CORESTA units, more especially from 26,000 CORESTA units to 28,000 CORESTA units, and a thickness from 30 pm to 300 pm, in particular from 45 pm to 215 pm.

[0042] The air permeability of paper can be determined by standard NF ISO 2965:2019 by determining the airflow through a sheet of paper of 1 cm2 at a measurement pressure of 1.00 kPa.

[0043] The NF EN ISO 536:2019 standard can be used to determine the basis weight of paper. A 1 m² sheet of paper is conditioned for at least 10 minutes at 23°C and 50% humidity before measurement. The weight of the sheet is measured on a scale, which gives the basis weight.

[0044] To measure the thickness of the paper substrate, the method described in standard NF EN ISO 534 (December 2011) can be used. A deadweight micrometer can be used, comprising a measuring head of 25 cm² with two flat, parallel, circular pressure faces. During the measurement, the paper substrate is placed between the two pressure faces for 10 seconds. The pressure exerted between the pressure faces during the thickness measurement is 20 kPa. The paper substrate is conditioned for at least 10 minutes at 23°C and 50% humidity before the measurement.

[0045] According to a specific embodiment, the cigarette paper can have a basis weight of 20 g / m2 to 25 g / m2, a porosity of 20 CORESTA units to 30 CORESTA units and a thickness of 35 pm to 45 pm.

[0046] According to a specific embodiment, the tobacco wrapper can have a weight of 40 g / m2 to 50 g / m2, a porosity of 45 to 55 CORESTA units and a thickness of 95 pm to 105 pm.

[0047] According to a specific embodiment, the porous filter paper can have a basis weight of 20 g / m2 to 25 g / m2, a porosity of 26,000 to 28,000 CORESTA units and a thickness of 89 pm to 90 pm.

[0048] Advantageously, the aerosol generated by the consumable IA, IB comprising a sachet 11A, HB made up of cigarette paper of this specific embodiment, tobacco wrapper of this specific embodiment, or porous filter paper of this specific embodiment has satisfactory organoleptic properties.

[0049] As illustrated in [Fig.1A], [Fig.3] and [Fig.4], the first layer of paper 2,6 and the second layer of paper 3,7 of the bag H may come from two different sheets of paper which are sealed on all sides 111A.

[0050] The two different sheets can be the same type of paper or two different types of paper.

[0051] As illustrated in [Fig.2A] and [Fig.5], the first layer of paper 2,6 and the second layer of paper 3,7 of the bag 11B can come from the same sheet of paper which is folded on one side 112 and sealed on all other sides 111B.

[0052] Advantageously, such a pocket 11A, 11B is easy to manufacture. Indeed, the welding and folding of a paper can be carried out with readily available tools, well known to those skilled in the art.

[0053] The sealed sides 111A, 111B of the bag 11A, 11B may be a glued seal, a knurled seal or combinations thereof, in particular a knurled seal.

[0054] Advantageously, the organoleptic properties of the aerosol generated by the consumable IA, IB of the present invention are not affected by the use of an adhesive. Furthermore, the strength of the bonded joint is greater than the strength of the knurled joint; therefore, the physical integrity of the consumable IA, IB of the present invention is advantageously superior when the sealed side 111A, IB is a bonded joint.

[0055] The adhesive for the bonded joint can be any type of adhesive commonly used in the technical field of cigarette paper manufacturing. The adhesive can typically be in the form of an aqueous solution or dispersion.

[0056] For example, the glue can be a natural glue, a synthetic glue or mixtures of these.

[0057] The natural glue may be a starch-based glue, a dextrin-based glue, a casein-based glue, a cellulose-based glue, an animal glue, a latex glue or mixtures thereof, in particular starch-based glue, more particularly water-based starch glue.

[0058] The synthetic glue may be acrylics, a polyurethane dispersion, an ethylene-vinyl acetate based glue, a polyvinyl acetate based glue, a polyvinyl alcohol based glue and mixtures thereof, in particular an ethylene-vinyl acetate based glue, a polyvinyl acetate based glue, a polyvinyl alcohol based glue or mixtures thereof, more particularly a polyvinyl acetate based glue, a polyvinyl alcohol based glue or mixtures thereof.

[0059] Swift® Tak 1138 from HBFuller is an example of a polyvinyl acetate-based adhesive that can be used in consumable 1 of the present invention. Lesso® 5294 from Laesser Klebstoffe is an example of a polyvinyl alcohol-based adhesive that can be used in consumables IA and IB of the present invention.

[0060] The glue of the two sealed ends is in particular a synthetic glue.

[0061] The knurled joint can be a toothed wheel joint.

[0062] According to the present invention, the reconstituted plant leaf 4 comprises: - one or more fibrous supports, each fibrous support comprising plant fibers, - a plant extract, and - an aerosol-generating agent.

[0063] For the purposes of this application, "fibrous support" means a base sheet made of plant fibers, in particular refined plant fibers. The base sheet is typically obtained by a papermaking process.

[0064] For the purposes of this application, the term "plant extract" means all water-soluble products of the plant. Advantageously, the plant extract includes nicotine and compounds that give the aerosol organoleptic and / or therapeutic properties.

[0065] For the purposes of this application, the term "aerosol-generating agent" means a compound which enables the formation of an aerosol when heated, for example in contact with hot air.

[0066] For the purposes of this application, the term "refined plant fibers" means plant fibers that have undergone a refining step enabling the fibrillation and / or cutting of the plant fibers. This refining step is typically carried out in a papermaking process, such as the papermaking process for producing reconstituted paper tobacco. However, this refining step is not carried out in a process for producing cast leaf reconstituted tobacco, such as that disclosed in documents EP 0 565 360 and WO 2012 / 164009.

[0067] For example, refined plant fibers can have a Schopper-Riegler degree (°SR) of 15°SR to 75°SR, in particular from 20°SR to 65°SR, more particularly from 25°SR to 55°SR.

[0068] Typically, the fibrous support may include fibers from the same plant or from several plants.

[0069] Typically, the dry matter weight content of the plant fibers included in the reconstituted plant leaf 4 can be from 15% to 70%, in particular from 20% to 61%, more particularly from 30% to 57%.

[0070] Typically, the fibrous support of the reconstituted plant leaf 4 may also include cellulose-based plant fibers.

[0071] Cellulose-based plant fibers are fibers obtained by a chemical, mechanical, or thermomechanical cooking process, such as wood pulp, or annual plants like flax, for example. A mixture of these cellulose-based plant fibers may also be used.

[0072] Advantageously, these cellulose-based plant fibers can improve the mechanical strength properties of the reconstituted plant leaf 4.

[0073] Typically, cellulose-based plant fibers can represent from 0.5% to 20%, in particular from 3% to 17.5%, more particularly from 5% to 15% by weight of dry matter of the reconstituted plant leaf 4.

[0074] Let Sag be the total dry matter content by weight of the aerosol-generating agent included in the reconstituted plant leaf 4 of the consumable IA, IB of the present invention. SAg can be from 10% to 30%, in particular from 12% to 25%, more particularly from 15% to 24%.

[0075] The aerosol generated by a reconstituted plant leaf having a SAG greater than the ranges mentioned above causes an undesirable burning of the mouth and / or throat (phenomenon known as "hot puff").

[0076] The volume of aerosol generated by a reconstituted plant leaf having a SAG below the ranges mentioned above is too small to be pleasant. This aerosol is also not palatable.

[0077] The aerosol-generating agent may be a polyol, a non-polyol, or a mixture thereof. Typically, an aerosol-generating agent that is a polyol may be sorbitol, glycerol, propylene glycol, triethylene glycol, or a mixture thereof. An aerosol-generating agent that is a non-polyol may be lactic acid, glyceryl diacetate, glyceryl triacetate, triethyl citrate, isopropyl myristate, or a mixture thereof.

[0078] The aerosol-generating agent may preferably be glycerol, propylene glycol or a mixture of glycerol and propylene glycol, glycerol being preferred.

[0079] An aerosol is generated when the reconstituted plant leaf 4 of the invention is heated. Advantageously, the plant extract, which includes aromatic compounds, imparts plant aromas to this aerosol. By simply changing the reconstituted plant leaf, the user can easily vary the aromas of the aerosol generated by heating said reconstituted plant leaf.

[0080] The organoleptic and therapeutic properties of the aerosol formed by heating said reconstituted plant leaf may depend on the dry matter weight content of the plant extract included in the reconstituted plant leaf 4 of the consumable IA, IB of the present invention.

[0081] The total dry matter content by weight of the plant extract depends on the plant used and, more particularly, on the content of aromatic compounds or compounds with therapeutic properties of the plant used.

[0082] Let Sp be the total dry matter content by weight of the plant extract included in the reconstituted plant leaf 4 of the consumable IA, IB of the present invention. Sp can be from 30% to 70%, in particular from 35% to 69%, more particularly from 40% to 68%.

[0083] Advantageously, an Sp within these ranges of values ​​makes it possible to generate, at a comfortable draw resistance, an aerosol having satisfactory organoleptic properties, that is to say having a constant and high intensity of taste and a constant and higher volume.

[0084] To determine SP, the following method can be used: The reconstituted plant leaf 4 to be analyzed is ground to a particle size of 1 mm or less. The reconstituted plant leaf 4 is then mixed with boiling water for 45 minutes to extract all of the plant extract. SP is calculated by subtracting the dry weight of the fibrous residue after extraction from the dry weight of the reconstituted plant leaf sample.

[0085] The sum of the total weight content of the dry matter of the plant extract and the total weight content of the dry matter of the aerosol-generating agent, SP + SAG, can be from 40% to 80%, in particular from 45% to 78%, more particularly from 50% to 76%.

[0086] The ratio between the total dry matter content by weight of the plant extract and the total dry matter content by weight of the aerosol-generating agent, Sp / SAg, can be from 1.0 to 4, in particular from 1.5 to 3.6, more particularly from 2 to 3.4.

[0087] Advantageously, the organoleptic properties of the aerosols formed are even more satisfactory when the reconstituted plant leaf 4 included in the consumable according to the invention has an SP / SAg ratio in the ranges mentioned above.

[0088] Plant fibers and plant extract can be obtained independently from a plant selected from spore-producing plants, seed-producing plants, or a mixture thereof. In particular, the plant can be selected from tobacco plants, food plants, aromatic plants, perfume plants, medicinal plants, or a mixture thereof.

[0089] The plant may preferably be the tobacco plant.

[0090] If the plant is a medicinal plant, the aerosol generated by heating the reconstituted plant leaf 4 may also have therapeutic properties so that the reconstituted plant leaf 4 can be used for therapeutic treatment.

[0091] Advantageously, a plant extract obtained from a mixture of plants can offer a wide range of organoleptic and / or therapeutic properties. A mixture of plants also makes it possible to counterbalance the unpleasant organoleptic properties of one plant in the mixture, for example a medicinal plant, with the pleasant organoleptic properties of another plant in the mixture, for example tobacco, an aromatic plant, or a perfume plant.

[0092] Plant fibers can be obtained from one plant and the plant extract from another. Indeed, the fibers of a plant may not have the mechanical properties necessary for the formation of a fibrous support, but the extract from that plant may impart the desired organoleptic and / or therapeutic properties to the aerosol. Conversely, the fibers of a plant may have the mechanical properties necessary for the formation of a fibrous support, but the extract from that plant may not impart the desired organoleptic and / or therapeutic properties to the aerosol.

[0093] Advantageously, the mixture of plants to obtain plant fibers makes it possible to adjust the mechanical properties of the reconstituted plant leaf 4 and / or the organoleptic or chemical properties of the aerosol.

[0094] When the plant is the tobacco plant, tobacco fibers and tobacco extract can be obtained from any tobacco plant or tobacco-like plant, for example Virginia tobacco, Burley tobacco, air-cured tobacco, dark air-cured tobacco, Oriental tobacco, sun-cured tobacco, fire-curved tobacco, or a mixture thereof.

[0095] Generally, food plants include garlic, coffee, ginger, licorice, rooibos, Stevia rebaudiana, tea, cocoa, chamomile, mate, star anise, fennel, lemongrass.

[0096] Typically, aromatic plants include basil, turmeric, cloves, bay leaves, oregano, mint, rosemary, sage, and thyme.

[0097] Generally, the aromatic plants are lavender, rose, eucalyptus.

[0098] Typically, medicinal plants are those listed in the document, List A of traditionally used medicinal plants (French Pharmacopoeia January 2016, published by the National Agency for the Safety of Medicines (ANSM)), or plants known to contain compounds with therapeutic properties. Typically, the listed medicinal plants are ginkgo, ginseng, sour cherry, peppermint, willow, and red vine.

[0099] Typically, eucalyptus is among the medicinal plants known to include compounds that have therapeutic properties.

[0100] Typically, the plant fibers and plant extract of the reconstituted plant leaf 4 of the present invention can be derived from various plant parts, the plant parts being parts of the plant itself or the result of processing various plant parts. Typically, the plant parts can be whole parts of the plant or debris from threshing or mixing and chopping plant parts.

[0101] Typically, the plant parts can be selected from those parts richest in aromatic compounds that impart organoleptic properties to the aerosol. Typically, these parts can be the whole plant, the aerial parts of the plant, such as the flower bud, branch bark, stem bark, leaves, flower, fruit and its peduncle, seed, petal, flowering top, or the underground parts, for example, the bulb, roots, root bark, rhizome, or a mixture thereof. The plant part can also be the result of the mechanical, chemical, or mechanochemical processing of one or more parts of the plant, such as the shell protecting the cocoa bean resulting from the bean dehulling process.

[0102] Typically, the tobacco plant parts may be those richest in aromatic compounds that give the aerosol its organoleptic properties. Typically, the tobacco plant parts may be the parenchyma (lamina), possibly supplemented by the ribs of the tobacco plant. Typically, the tobacco plant parts may be the leaves of the tobacco plant or the debris from threshing or mixing and chopping the leaves and veins of the tobacco plant into scaferlati.

[0103] Among food plants, garlic bulb, coffee cherry, star anise fruit, ginger rhizome, licorice root and rooibos, Stevia rebaudiana or tea leaves may for example be chosen as parts.

[0104] Among aromatic plants, parts that can be selected include, for example, the flower buds of the clove tree (cloves), the leaves of basil, bay leaf and sage, mint leaves and flowering tops, oregano, rosemary and thyme, or turmeric rhizome.

[0105] Typically, among perfume plants, the flower and flowering top of lavender, or the bud and petals of the rose flower may be selected.

[0106] Among the medicinal plants listed in the French pharmacopoeia, one can for example choose the ginkgo leaf, the underground part of ginseng, the peduncle of the fruit of the morello cherry (cherry stem), the leaves and flowering top of peppermint, the bark of the stem and the leaves of the willow, or even the leaves of the red vine.

[0107] The density of the reconstituted plant leaf 4 of the consumable IA, IB of the present invention can be from 1.5 g / cm3 to 0.60 g / cm3, in particular from 1 g / cm3 to 0.65 g / cm3.

[0108] Alternatively, the density of the reconstituted plant leaf 4 of the consumable IA, IB of the present invention may be less than 0.60 g / cm3, in particular from 0.40 g / cm3 to 0.59 g / m3, more particularly from 0.45 g / cm3 to 0.58 g / cm3.

[0109] Advantageously, a density within these ranges of values ​​makes it possible to generate, at a comfortable draw resistance, an aerosol with satisfactory organoleptic properties, i.e. with a constant high taste intensity and a constant high volume.

[0110] The density of the reconstituted plant leaf 4 is calculated by dividing its weight by its thickness.

[0111] To determine the weight of the reconstituted plant leaf 4, the following method can be used: A 0.25 m² sample is cut using a template (dimensions: 57.5 x 43.5 cm) approximately 15 cm from the edge of the reconstituted plant leaf to be analyzed. The sample is then folded in four and placed on a heating plate to dry in a way that removes the water without eliminating the aerosol-generating agent. The dried sample is then weighed to determine the weight of the plant leaf.

[0112] To determine the thickness of the reconstituted plant leaf 4, the method described in standard NF EN ISO 534 (December 2011) adapted to reconstituted plant leaves can be used: - measurement of the average thickness of the control parchment paper used for measuring the thickness of the reconstituted plant leaf 4 is measured (minimum 6 measurements on a layer, on places marked on the paper) - The reconstituted plant leaf sample 4 is placed between two layers of parchment paper, - Once the micrometer probe is in place, wait 30 seconds before taking the measurement (sample stabilization for thickness measurement), - a minimum of 6 measurements at the locations marked on the parchment paper. - The calculated thickness of the reconstituted plant leaf 4 is the average of the overall measured thickness (reconstituted plant leaf + 2 layers of parchment paper) minus twice the average thickness of the parchment paper.

[0113] Typically, the reconstituted plant leaf 4 may have a weight of less than 300 g / m2, in particular from 60 g / m2 to 250 g / m2, especially from 80 g / m2 to 200 g / m2, even more especially from 105 g / m2 to 130 g / m2.

[0114] Typically, the thickness of the fibrous support of the reconstituted plant leaf 4 can be from 100 pm to 450 pm, in particular from 120 pm to 375 pm, especially from 140 pm to 325 pm, even more particularly from 180 pm to 250 pm.

[0115] A person skilled in the art will be able to adjust the basis weight and thickness of the reconstituted plant leaf 4 to obtain the desired density. For example, to obtain these thickness and / or density values, the reconstituted plant leaf 4 of the consumable IA, IB of the invention can undergo a calendering step. Thus, the reconstituted plant leaf 4 of the invention can be calendered.

[0116] The reconstituted plant leaf 4 may be in the form of particles, in the form of a crepey leaf, in the form of scaferlatis, or combinations thereof, in particular in the form of scaferlatis.

[0117] The consumable IA, IB may further comprise one or more parts of natural plant leaf, in particular one or more parts of natural tobacco leaf in the inner volume of the sachet 11A, 11B.

[0118] In one aspect, a manufacturing process for a consumable IA, IB as defined above is proposed, comprising the following steps: a) provide a first layer of paper 2, 6 and a second layer of paper 3, 7, b) place one or more reconstituted plant leaves 4 on the first layer of paper 2, 6, c) place the second layer of paper 3, 7 on the reconstituted plant leaf(s) 4, d) seal together the first layer of paper 2, 6 and the second layer of paper 3, 7, and cut when there is more than one reconstituted plant leaf 4, to obtain consumable IA, IB.

[0119] Step a) may include: a) provide a roll of paper, a2) cut the roll of paper to obtain one or more sheets of paper.

[0120] This step a) is adapted to the first layer of paper 2, 6 and the second layer of paper 3, 7 from two different sheets of paper.

[0121] Alternatively, in addition to steps a1) and a2), step a) may also include: a3) folding the sheet of paper obtained during step a2) into the first layer of paper 2,6 and the second layer of paper 3,7.

[0122] This alternative step a) is adapted to the first layer of paper 2, 6 and to the second layer of paper 3, 7 from the same sheet of paper.

[0123] The paper of the first layer of paper 2, 6 and the paper of the second layer of paper 3, 7 is the paper of the bag 11A as defined above in relation to the consumable IA of the present invention.

[0124] The reconstituted plant leaf 4 is as defined above in relation to the consumables IA, IB of the present invention.

[0125] The sealing step d) can be carried out by gluing or knurling or by a combination of these methods, in particular knurling.

[0126] Step b) may include: - apply a layer of glue to the first layer of paper 2.6, to the second layer of paper 3.7, or combinations thereof, in particular to the edge of the first layer of paper 2.6, to the edge of the second layer of paper 3.7, or combinations thereof, and - press the first layer of paper 2.6 against the second layer of paper 3.7 to form the sealed sides 111A, 111B.

[0127] The glue of the glue layer is as defined above in relation to the consumables IA, IB of the present invention.

[0128] Typically, the glue can be applied to the paper using a nozzle having a specific diameter. The diameter of the nozzle determines the width of the glue layer applied, and therefore the width of the glued joint formed.

[0129] By way of example, a nozzle having a diameter of 0.6 mm to 1.8 mm, in particular having a diameter of 0.8 mm to 1.6 mm, may be used.

[0130] The weight of the glue layer can be from 0.6 mg.cm2 to 1.8 mg.cm2, in particular from 0.66 mg.cm2 to 1.5 mg.cm2, more particularly from 1 mg.cm2 to 1.2 mg.cm2.

[0131] Advantageously, thanks to a grammage within these ranges, the resistance of the sealed sides 111A 111B is sufficient to guarantee the physical integrity of the pouch 11A, 11B and therefore of the consumable IA, IB. Thus, the insertion into and extraction from a dedicated compartment of a tobacco heating device without burning it is facilitated for the consumable IA, IB.

[0132] Furthermore, thanks to a weight in this range, the sealed sides 111A, 111B do not affect the organoleptic properties of the aerosol generated by the consumable IA, IB manufactured by the process of the present invention.

[0133] Alternatively, step d) may include: - press the first layer of paper 2, 6 against the second layer of paper 3, 7, and - knurle the pressed edges to form the sealed side 111A , 111B of the bag 11A , 11B.

[0134] Knurling is a well-known process. A person skilled in the art will know how to adapt the knurling parameter to carry out this alternative step d).

[0135] The reconstituted plant leaf 4 can be manufactured according to the following steps: e1) passing plant fibers through a paper machine to produce a fibrous support, e2) contacting a plant extract with the fibrous support, and contacting at least two fibrous supports when the reconstituted plant leaf comprises more than one fibrous support, to obtain a moist reconstituted plant leaf, and e3) drying the moist reconstituted plant leaf to produce the reconstituted plant leaf 4, in which an aerosol-generating agent is incorporated during step e2) and / or between steps e2) and e3).

[0136] The fibrous support can be produced using a paper machine. According to a preferred embodiment of the invention, the reconstituted plant leaf 4 of the consumable IA, IB according to the invention can be a reconstituted plant leaf obtainable by a papermaking process.

[0137] Plant fibers and plant extract can be obtained by following these steps: fl) mix one or more parts of the plant with a solvent in order to extract the plant extract from the plant fibers, f2) separate the plant extract from the plant fibers.

[0138] The plant extract and plant fibers are therefore typically obtained by means of a dissociation process. In step f1), one or more parts of the plant are mixed with a solvent, for example in a digester, in order to extract the plant extract from the plant fibers. In step f2), the plant extract is separated from the plant fibers, for example by passing through a screw press, in order to isolate and obtain, on the one hand, the plant fibers and, on the other hand, the plant extract.

[0139] Typically, the solvent may be a nonpolar solvent, an aprotic polar solvent, a protic polar solvent, or a mixture of these, in particular the solvent may be methanol, dichloromethane, ethanol, acetone, butanol, water or a mixture of these, more particularly the solvent is ethanol, acetone, water or a mixture of these.

[0140] The solvent may be an aqueous solvent, more particularly the solvent is water.

[0141] A person skilled in the art will know how to adapt the solvent temperature during step fl) to the plant, the plant part, and the plant parts to be treated. Typically, the solvent temperature during the treatment of a root or bark will be higher than the solvent temperature during the treatment of a leaf or petal.

[0142] Typically, the solvent temperature during step fl) can be from 10°C to 100°C, in particular from 30°C to 90°C, more particularly from 50°C to 80°C.

[0143] The solvent temperature can typically be from 30°C to 80°C. This range is suitable given that the solvent is water and the plant is tobacco. Typically, for treating the ribs of a tobacco plant, the water temperature can be from 50°C to 80°C. Typically, for treating the parenchyma of a tobacco plant, the water temperature can be from 30°C to 70°C.

[0144] Typically, plant fibers can be refined in a refiner and are then involved in step el).

[0145] Typically, plant fibers can be derived from various plants.

[0146] The fibers of each plant can be obtained separately using the dissociation process described above. They can then be mixed so that this mixture of fibers from different plants passes through the paper machine to form the fibrous support. It is also possible to obtain fibers from different plants together by combining one or more parts of the different plants and then subjecting them to the dissociation process described above. The water temperature will then be adapted to the plants being processed and, in particular, to the plant requiring the highest water temperature for extracting its extract. This alternative embodiment is very advantageous because it allows the fibers of the different plants to be obtained without carrying out several dissociation processes in parallel.

[0147] Typically, the plant extract can be an extract from various plants.

[0148] The extract of various plants can be obtained by mixing various plant extracts obtained separately according to the dissociation process described above. It is also possible to obtain the extract of various plants by combining one or more parts of the various plants and then subjecting them to the dissociation process described above. The water temperature will then be adapted to the plants to be treated and, in particular, to the plant requiring the highest water temperature for the extraction of the water-soluble extract of that plant. This alternative embodiment is very advantageous because it makes it possible to obtain the extract of different plants without carrying out several processes in parallel. In both situations, the extract of various plants is brought into contact with the fibrous support during step e2).

[0149] Typically, different plant extracts, obtained according to the dissociation process described above, can also be brought into contact with the fibrous support separately during step e2).

[0150] Typically, the plant extract can be concentrated before being brought into contact with the fibrous support in step e2). A device such as a vacuum evaporation device can be used to concentrate the plant extract.

[0151] Typically, during step e2), the plant extract and the aerosol-generating agent can be brought into contact with the fibrous support one after the other, or can be mixed so as to be brought into contact with the fibrous support together.

[0152] Typically, step e2) can be carried out by impregnation or by spraying, in particular by impregnation. Typically, impregnation can be carried out using a size-press.

[0153] Typically, the drying step e3) can be carried out by infrared ramp, American battery roller dryers, hot air drying in a tunnel dryer, a vertical dryer, a fluidized bed dryer, a pneumatic dryer, in particular in a tunnel dryer.

[0154] The reconstituted plant leaf 4 produced in step e3) can be shaped into particulate form, into a creped leaf, into a scaferlatis form in an optional step e4). This shaped reconstituted plant leaf is then involved in step b).

[0155] A non-therapeutic use of an IA, IB consumable as defined above is also proposed in a tobacco heating device without burning it.

[0156] For the purposes of the present invention, the term "tobacco heating device without burning it" refers to any device that allows the formation of an aerosol intended to be inhaled by a consumer. The aerosol replaces smoke, thus allowing the user to inhale the aromas of the plant while significantly reducing their exposure to harmful constituents.

[0157] Typically, a heating device comprises, in the direction of the airflow, an air inlet, a heating element, a dedicated housing for installing and maintaining the consumable IA, IB of the invention, and an air outlet for being introduced into the user's mouth. The air inlet, the heating element, the dedicated housing, and the air outlet are typically connected at least fluidly to one another.

[0158] Typically, when the heating device is used, the user draws air into the heating device via the air inlet; the drawn-in air then comes into contact with the consumable IA, IB of the invention, held in the dedicated housing and heated by the heating element, an aerosol is formed and is then inhaled by the user. If the plant is a medicinal plant, then the aerosol formed has therapeutic properties.

[0159] Furthermore, thanks to the heating device, there is no combustion of the consumable IA, IB. The user can therefore enjoy the organoleptic properties of the plant, and possibly of the tobacco, while significantly reducing their exposure to harmful components.

[0160] A consumable IA, IBtel as defined above is also proposed for use in a heating device for therapeutic purposes, the plant being chosen from medicinal plants. Examples

[0161] Example 1: Manufacture of consumables according to the present invention.

[0162] In this example, the consumables for samples 1 to 14 were manufactured as follows:

[0163] 180 mg of reconstituted tobacco leaf (in the form of scaferlati) are placed on a The first layer of paper is rectangular in shape. A second layer of paper, of the same dimensions and shape as the first layer of paper, is placed on the reconstituted tobacco leaf. 0.136 mg of glue was applied with a spatula along the edges of the first layer of paper, over a width of 1 mm. The edges of the second layer of paper were pressed against the first layer of paper for 5 seconds to achieve effective adhesion.

[0164] All examples are produced using this protocol except for samples 9, 10, 12, 13, 14 which were produced using: 250 mg of tobacco used for samples 9 and 10, 300 mg for sample 12, 325 mg for sample 13, and 425 mg for sample 14.

[0165] The size and shape of each of these samples 1 to 14 are adapted to be incorporated into the dedicated housing of an Arkx® heating device.

[0166] In addition to the difference mentioned above, the other differences between the various consumables are the paper (see the properties of the different papers in [Table 1] below), the glue and the reconstituted tobacco.

[0167] These differences are presented in [Table 2] below.

[0168] [Tables 1] Paper Weight (g / m2) Paper Air Permeability (Coresta) Thickness (pm) Tobacco wrapper 46 50 100 Cigar papers 23.5 25 40 Porous filter paper 21.5 27100 82

[0169] Example 2: Comparison of the resistance to pull and the organoleptic properties of the aerosols generated by the consumables of example 1 and by a commercially available consumable.

[0170] The organoleptic properties of the aerosols generated by samples 1 to 11 of Example 1 are evaluated by an independent expert according to the following protocol.

[0171] These samples are successively evaluated by an independent expert in the Arkx® heating device. The reconstituted tobacco leaf of the commercially available Heets™ product is also evaluated in the same heating system, but this reconstituted tobacco leaf is not wrapped.

[0172] The experiences provided by the consumables according to the invention are comparable to the experience provided by the commercially available consumable.

[0173] Nevertheless, the experiences provided by some consumables according to the invention are slightly better than the experiences provided by other consumables according to the invention.

[0174] In detail: - The aerosol generated by the consumable in sample 1 has a more intense tobacco taste than the aerosol generated by samples 3 and 5. - The aerosol generated by the consumable in sample 2 has a more intense tobacco taste than the aerosol generated by samples 4 and 6. Compared to the consumable in sample 7, the consumable in sample 9 produces an aerosol with a more intense tobacco flavor, a larger volume, a greater amplitude in the mouth, and greater irritation (which is positive as it more closely resembles the experience provided by a conventional cigarette). Furthermore, the consumable in sample 9 allows for a longer vaping experience. It also provides a more comfortable experience because the draw resistance is more comfortable and less variable. Compared to the consumable in sample 8, the consumable in sample 10 produces an aerosol with a more intense tobacco flavor. In addition, the consumable in sample 10 allows for a longer vaping experience. It also provides a more comfortable experience because the draw resistance is more comfortable and less variable.

[0175] Without wishing to be bound by any particular theory, the inventors believe that this difference in terms of experience may result from: - the tobacco wrapper which imparts a tobacco aroma to the aerosol as it passes through the tobacco wrapper, and - the higher ratio between the mass of the reconstituted plant leaf and the internal volume of the sachet of samples 9 and 10 compared to samples 7 and 8.

[0176] [Tables2] Sample on Paper Reconstituted plant leaf Glue R ec .c Aerosol generating agent, SAg (%) SP (%) Density (g / cm3 ) 1 Tobacco wrapper Glycerin: 15%. 42 0.5 A o, 2 Tobacco wrapper Glycerin: 16.5%. 55 0.58 A o, 3 Cigarette paper s Glycerin: 15%. 42 0.5 A o, 4 Cigarette paper s Glycerin: 16.5%. 55 0.58 A o, 5 Porous filter paper Glycerin: 15%. 42 0.5 A o, 6 Porous filter paper Glycerin: 16.5%. 55 0.58 A o, 7 Tobacco wrapper Glycerin: 15%. 48 0.49 B o, 8 Tobacco wrapper Glycerin: 15.2%. 50 0.52 B 0.9 Tobacco wrapper Glycerin: 15%. 48 0.49 B 0.10 Tobacco wrapper Glycerin: 15.2%. 50 0.52 B 0.11 Tobacco wrapper Glycerin: 18.4% Propylene glycol: 4.2% 53 0.55 B 0.12 Tobacco wrapper Glycerin: 23.7%. 51 0.68 B 0.13 Tobacco wrapper Glycerin: 21.2%. 58.3 0.71 B 0.14 Tobacco wrapper Glycerin: 22.5%. 67.5 0.95 B 0, A: Lesso® 5294“ from Laesser Klebstoffe B: Swift® Tak 1138 from HBFuller

Claims

Claims

1. A heat-without-burn consumable (IA, IB) comprising: - a sachet (1 IA, 1 IB) made of paper with an interior volume, - a reconstituted plant leaf contained in the interior volume of the sachet (11 A, 11B), wherein the reconstituted plant leaf (4) comprises: - one or more fibrous supports, each fibrous support comprising plant fibers, - a plant extract, and - an aerosol-generating agent, and wherein the paper of the sachet (1 IA, 1 IB) is a tobacco wrapper.

2. Consumable (IA, IB) according to claim 1, wherein the ratio of the mass of the reconstituted plant leaf (4) to the internal volume of the sachet (1 IA, 1 IB) is between 0.30 g.cm3 and 1.5 g.cm3.

3. Consumable (IA, IB) according to claim 1 or claim 2, wherein the sachet (1 IA, 1 IB) comprises a first layer of paper (2, 6) and a second layer of paper (3, 7).

4. Consumable (IA) according to claim 3, wherein the first paper layer (2, 6) and the second paper layer (3, 7) of the sachet (1 IA) come from two different sheets of paper which are sealed on all sides (111A).

5. Consumable (IA) according to claim 3, wherein the first paper layer (2, 6) and the second paper layer (3, 7) of the sachet (1 IB) come from the same sheet of paper which is folded on one side (112) and sealed on all other sides (11 IB).

6. A consumable (IA, AB) according to claim 4 or claim 5, wherein the sealed sides (11 IA, 11 IB) are a glued seal, a knurled seal or combinations thereof.

7. Consumable (IA, IB) according to claim 6, wherein the glue of the glued joint is selected from starch-based glue, dextrin-based glue, casein-based glue, cellulose-based glue, animal glue, latex glue, acrylics, polyurethane dispersion, ethylene-vinyl acetate-based glue, polyvinyl acetate-based glue, polyvinyl alcohol-based glue and mixtures thereof.

8. Consumable (IA, IB) according to any one of claims 1 to 7, wherein the total content by weight of dry matter of the aerosol-generating agent is 10% to 30%.

9. Consumable (IA, IB) according to any one of claims 1 to 8, wherein the total content by weight of dry matter of the plant extract is 30% to 70%.

10. Consumable (IA, IB) according to any one of claims 1 to 9, wherein the aerosol-generating agent is selected from sorbitol, glycerol, propylene glycol, triethylene glycol, erythritol, propanediol, lactic acid, benzyl benzoate, glyceryl diacetate, glyceryl triacetate, triethyl citrate, isopropyl myristate, and mixtures thereof.

11. Consumable (IA, IB) according to any one of claims 1 to 10, wherein the plant of the reconstituted plant leaf (4) is the tobacco plant.

12. A method of manufacturing a consumable (IA, IB) as defined in any one of claims 1 to 11 comprising the following steps: a) providing a first paper layer (2, 6) and a second paper layer (3, 7), b) arranging one or more reconstituted plant leaves (4) on the first paper layer (2, 6), c) arranging the second paper layer (3, 7) on the one or more reconstituted plant leaves (4), d) sealing together the first paper layer (2, 6) and the second paper layer (3, 7), and cutting when there is more than one reconstituted plant leaf (4), to obtain the consumable (IA, IB).

13. Non-therapeutic use of a consumable (IA, IB) as defined in any one of claims 1 to 11 in a device for heating tobacco without burning it.

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