HEATABLE CONSUMABLE WITHOUT BURNING IN SACHET SHAPE

Abstract

The present invention relates to a non-burning heating consumable in the form of a sachet. Summary figure: Figure 1

Description

Title of the invention: CONSUMABLE HEATING WITHOUT BURNING IN THE SHAPE OF A SACHET Technical field

[0001] The present disclosure relates to the field of devices for heating tobacco without burning it and relates to a pouch-shaped consumable for a vaping device. Prior art

[0002] A large number of devices for heating tobacco without burning it have been developed in order to avoid the formation of harmful constituents during the combustion of tobacco. For example, applications published under numbers WO 2016 / 026810 and WO 2016 / 207407 which describe such devices may be cited. 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, which leads to the formation of an aerosol when the user draws 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 the nicotine and flavors of the tobacco while significantly reducing their exposure to harmful components.

[0003] In order for the user to adopt these heating devices, it is important that the experience obtained with these devices is 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 including reconstituted tobacco to generate the aerosol, a cooling segment to cool the aerosol and prevent burning of the user's mouth and a filter segment comprising a cellulose acetate substrate to mainly prevent the introduction of reconstituted tobacco dust into the user's mouth. The rod-shaped consumable is also made of several layers of different papers and aluminum. Thus, the production of these rod-shaped consumables can be time-consuming and cumbersome as it requires many steps. In addition, rod-shaped consumables are not biodegradable due to the use of cellulose acetate and aluminum.

[0005] Furthermore, there are heating devices that are loaded by the user directly with chopped reconstituted tobacco, such as a pipe. The introduction of chopped tobacco into such devices has the disadvantage that the chopped tobacco not only ends up in the dedicated housing of these devices, but pieces can stick to the user's hand or fall next to the device, making loading inconvenient and complicated. This difficult use can cause some frustration for the user of the device. Furthermore, it is difficult to introduce a constant dose of reconstituted tobacco into these devices, which leads to variations in the organoleptic properties and therefore dissatisfaction of the vaper. Technical problem

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

[0007] It is therefore to the credit of the inventors that they found it possible to meet this need by means of a consumable that heats without burning in the form of a sachet. Summary

[0008] A heat-without-burn consumable is provided comprising: - a paper bag having an interior volume, - a reconstituted plant leaf contained in the interior volume of the bag, 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 heat-without-burn consumable according to the invention and by a commercially available consumable in the form of a rod are comparable in terms of organoleptic properties of the generated aerosol, duration of the experience and comfort of the experience due to comparable draw resistance. The consumable has a constant and high taste intensity as well as a constant and high volume.

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

[0011] Furthermore, unlike a conventional rod-shaped consumable, the heat-without-burn consumable of the invention can, due to its composition, degrade very quickly in the environment. This is particularly advantageous, as the environmental impact of the heat-without-burn consumable of the invention is lower than the environmental impact of a conventional rod-shaped consumable.

[0012] According to another aspect, there is provided a method of manufacturing a consumable as defined above comprising the following steps: (a) providing a paper tube enveloping a reconstituted plant leaf between two of its open ends, and b) seal the two open ends of the tube to make the consumable.

[0013] Advantageously, this method is easy to implement since it only requires simple production tools well known to those skilled in the art.

[0014] This method also has the advantage of allowing 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. Brief description of the drawings

[0015] Other features, details and advantages will be shown in the following detailed description and in the figures, in which: Fig.l

[0016] [Fig.l] is a top view of the consumable according to the invention. Fig. 2

[0017] [Fig.2] is a side view of the consumable according to the invention. Detailed description of the invention

[0018] We now refer to [Fig.l] and [Fig.2].

[0019] A non-burning heating consumable 1 is provided comprising: - a paper bag 11 with an interior volume, - a reconstituted plant leaf contained in the interior volume of the sachet 11, 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.

[0020] For the purposes of the present application, the term "heating consumable without burning " ("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 inserted into a dedicated housing of a tobacco heating device without burning it.

[0021] The ratio between the mass of the reconstituted plant leaf and the internal volume of the sachet 11 of the consumable I of the present invention can be between 0.30 g.cm3 and 1.5 g.cm3, in particular from 0.35 g.cm3 to 1.25 g.cm 3, more particularly from 0.39 g.cm 3 to 1 g.cm 3.

[0022] Advantageously, a ratio 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 taste intensity as well as a constant and high volume.

[0023] Furthermore, this ratio can be easily adjusted to the shape and volume of the dedicated housing of any type of device for heating tobacco without burning it, so that the consumable 1 can be easily inserted into and extracted 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 dedicated housing, the ratio can be reduced by decreasing the interior volume of the sachet 11 and reducing, to some extent, the mass of reconstituted plant leaf to generate an aerosol with satisfactory organoleptic properties. For a large dedicated housing, the ratio can be increased by increasing the interior volume of the sachet 11 and increasing, to some extent, the mass of reconstituted plant leaf to generate an aerosol with satisfactory organoleptic properties.

[0024] The interior volume of the bag 11 can be determined by determining the volume of the bag 11 and then subtracting the volume of the paper.

[0025] The bag 11 may have two sealed ends 111, 112. The bag 11 may also have a third seal 113 connecting the two sealed ends 111, 112.

[0026] At least one of the two sealed ends 111, 112 may be a glued seal, a knurled seal or combinations thereof, in particular a knurled seal. The third seal 113 may preferably be a glued seal.

[0027] The two sealed ends 111,112 may be a knurled joint and the third joint 113 is a glued joint.

[0028] Alternatively, the two sealed ends 111,112 and the third seal 113 may be a glued seal.

[0029] Advantageously, the organoleptic properties of the aerosol generated by the consumable 1 of the present invention are not affected by the use of an adhesive. In addition, the strength of the glued joint is greater than the strength of the knurled joint, therefore, the physical integrity of the consumable 1 of the present invention is advantageously greater when the two sealed ends 111, 112 and the third joint 113 are a glued joint.

[0030] The glue of the glued joint can be any type of glue commonly used in the technical field of cigarette paper. The glue can typically be in the form of an aqueous solution or dispersion.

[0031] For example, the glue may be a natural glue, a synthetic glue, or mixtures thereof.

[0032] 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 a starch-based glue, more particularly an aqueous starch-based glue.

[0033] The synthetic glue may be acrylics, polyurethane dispersion, ethylene vinyl acetate based glue, polyvinyl acetate based glue, polyvinyl alcohol based glue and mixtures thereof, in particular ethylene vinyl acetate based glue, polyvinyl acetate based glue, polyvinyl alcohol based glue or mixtures thereof, more particularly polyvinyl acetate based glue, polyvinyl alcohol based glue or mixtures thereof.

[0034] Swift® Tak 1138 from HBFuller is an example of a polyvinyl acetate-based adhesive that can be used in the consumable I of the present invention. Lesso® 5294 from Laesser Klebstoffe is an example of a polyvinyl alcohol-based adhesive that can be used in the consumable 1 of the present invention.

[0035] The glue of the two sealed ends is in particular a synthetic glue.

[0036] The knurled joint may be a toothed wheel joint.

[0037] The bag 11 may comprise, between the two sealed ends 111, 112, two opposite concave faces 114, 115 and two opposite convex faces 116, 117.

[0038] Advantageously, such a sachet is easy to handle and can be easily inserted into and extracted from the dedicated housing of a tobacco heating device without burning it.

[0039] The paper of the pouch may be any paper suitable for the manufacture of a smoking or vaping article, such as a cigarette paper, a tobacco wrapper, a porous plug wrapper or combinations thereof, in particular a cigarette paper, a tobacco wrapper or combinations thereof, more particularly a tobacco wrapper.

[0040] The cigarette paper may be made from wood pulp, tobacco fibers, flax fibers, sisal fibers, cocoa bean hull fibers, rice straw, esparto fibers and mixtures thereof, in particular from wood pulp. It may have at least one of a basis weight of 12 g / m2 to 50 g / m2, in particular 22 g / m2 to 35 g / m2, an air permeability of 5 CORESTA units to 500 CORESTA units, in particular 15 CORESTA units to 80 CORESTA units, and a thickness of 20 pm to 80 pm, in particular 25 pm to 50 pm. It may also comprise a filler such as calcium carbonate (CaCO3), magnesium oxide (MgO) and mixtures thereof.

[0041] The tobacco wrapper can be made from wood pulp, tobacco fibers, flax fibers, sisal fibers, cocoa bean shell fibers, rice straw, esparto fibers and mixtures thereof, in particular from tobacco fibers, wood pulp and mixtures thereof, in particular a mixture of tobacco fibers and wood pulp. It may have at least one of a grammage of 24 g / m2 to 100 g / m2, in particular 32 g / m2 to 51 g / m2, an air permeability of 0 CORESTA units to 150 CORESTA units, in particular 10 CORESTA units to 80 CORESTA units, and a thickness of 20 pm to 200 pm, in particular 75 pm to 150 pm.

[0042] The porous filter paper can be made from wood pulp, flax fibers, sisal fibers, lyocell fibers, viscose fibers and mixtures thereof, particularly from wood pulp. It may have at least one of a grammage of 15 g / m2 to 140 g / m2, in particular of 20 g / m2 to 80 g / m2, more especially of 20 g / m2 to 25 g / m2, an air permeability of 200 CORESTA units to 45,000 CORESTA units, in particular of 5,000 CORESTA units to 32,000 CORESTA units, more especially of 26,000 CORESTA units to 28,000 CORESTA units, and a thickness of 30 pm to 300 pm, in particular of 45 pm to 215 pm.

[0043] The air permeability of paper can be determined by the NF ISO 2965:2019 standard by determining the air flow passing through a 1 cm2 sheet of paper at a measuring pressure of 1.00 kPa.

[0044] The NF EN ISO 536:2019 standard can be used to determine the grammage 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 grammage.

[0045] To measure the thickness of the paper of the bag 11, the method described in the standard NF EN ISO 534 (December 2011) can be used. A dead weight micrometer comprising a 25 cm2 measuring head with two flat, parallel and circular pressure faces can be used. During the measurement, the paper of the bag 11 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 of the bag 11 is conditioned for at least 10 minutes at 23°C and 50% humidity before the measurement.

[0046] According to a specific embodiment, the cigarette paper may have a grammage of 20 g / m2 to 25 g / m2, a porosity of 20 CORESTA units to 30 CORESTA units and a thickness of 35 μm to 45 μm.

[0047] According to a specific embodiment, the tobacco wrapper may have a grammage 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.

[0048] According to a specific embodiment, the porous filter paper may 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 µm to 90 µm.

[0049] Advantageously, the aerosol generated by the consumable 1 comprising a sachet 11 made up of the cigarette paper of this specific embodiment, the tobacco wrapper of this specific embodiment, or the porous filter paper of this specific embodiment has satisfactory organoleptic properties.

[0050] According to the present invention, the reconstituted plant leaf comprises: - one or more fibrous supports, each fibrous support comprising plant fibers, - a plant extract, and - an aerosol-generating agent.

[0051] For the purposes of the present application, the term "fibrous support" means a base sheet consisting of fibers from a plant, in particular refined fibers from a plant. The base sheet is typically obtained by a papermaking process.

[0052] For the purposes of the present application, the term "plant extract" designates all the water-soluble products of the plant. Advantageously, the plant extract comprises nicotine, and the compounds conferring organoleptic properties and / or therapeutic properties on the aerosol.

[0053] For the purposes of the present application, the term "aerosol-generating agent" designates a compound which allows the formation of an aerosol when it is heated, for example in contact with hot air.

[0054] For the purposes of the present application, the term "refined plant fibers" designates plant fibers that have undergone a refining step allowing the fibrillation and / or cutting of the plant fibers. The refining step is conventionally implemented in a papermaking process, such as the papermaking process manufacturing reconstituted tobacco. On the other hand, the refining step is not implemented in a process manufacturing cast leaf reconstituted tobacco, such as that disclosed in documents EP 0 565 360 and WO 2012 / 164009.

[0055] For example, the refined fibers of the plant may have a Schopper-Riegler degree (°SR) of 15°SR to 75°SR, in particular of 20°SR to 65°SR, more particularly of 25°SR to 55°SR.

[0056] Typically, the fibrous support may comprise fibers from the same plant or from several plants.

[0057] Typically, the dry matter weight content of the plant fibers included in the reconstituted plant leaf may be from 15% to 70%, in particular from 20% to 61%, more particularly from 30% to 57%.

[0058] Typically, the fibrous support of the reconstituted plant leaf may also comprise cellulose-based plant fibers.

[0059] Cellulose-based plant fibers are fibers obtained by a chemical or mechanical or thermomechanical cooking process, such as wood pulp, or annual plants such as flax for example. A mixture of these cellulose-based plant fibers can also be used.

[0060] Advantageously, these cellulose-based plant fibers can improve the mechanical strength properties of the reconstituted plant leaf.

[0061] Typically, the cellulose-based plant fibers may 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.

[0062] Let Sag be the total content by weight of dry matter of the aerosol-generating agent included in the reconstituted plant leaf of the consumable I of the present invention. Sag may be from 10% to 30%, in particular from 12% to 25%, more particularly from 15% to 24%.

[0063] Aerosol generated by a reconstituted plant leaf having a SAg greater than the above-mentioned ranges causes undesirable burning of the mouth and / or throat (a phenomenon known as "hot puff").

[0064] The volume of aerosol generated by a reconstituted plant leaf having a Sag lower than the above-mentioned ranges is too low to be pleasant. This aerosol is also not tasteful.

[0065] 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.

[0066] The aerosol generating agent may preferably be glycerol, propylene glycol or a mixture of glycerol and propylene glycol, with glycerol being preferred.

[0067] An aerosol is generated upon heating the reconstituted plant leaf of the invention. Advantageously, the plant extract which comprises aromatic compounds imparts aromas of the plant 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.

[0068] The organoleptic properties and the 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 of the consumable 1 of the present invention.

[0069] The total content by weight of dry matter of the plant extract depends on the plant used and, more particularly, on the content of aromatic compounds or compounds having therapeutic properties of the plant used.

[0070] Let Sp be the total content by weight of dry matter of the plant extract included in the reconstituted plant leaf of the consumable I of the present invention. Sp may be from 30% to 70%, in particular from 35% to 69%, more particularly from 40% to 68%.

[0071] Advantageously, an Sp included in 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 taste intensity and a constant and higher volume.

[0072] To determine SP, the following method can be used: The reconstituted plant leaf to be analyzed is ground to obtain a particle size less than or equal to 1 mm. The reconstituted plant leaf is then mixed with boiling water for 45 minutes to extract all of the plant extract. SP is calculated by the difference between the dry weight of the reconstituted plant leaf sample to be analyzed and the dry weight of the fibrous residue after extraction.

[0073] The sum of 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, may be from 40% to 80%, in particular from 45% to 78%, more particularly from 50% to 76%.

[0074] The ratio of the total dry matter content by weight of the plant extract to the total dry matter content by weight of the aerosol-generating agent, Sp / SAg, may be from 1.0 to 4, in particular from 1.5 to 3.6, more particularly from 2 to 3.4.

[0075] Advantageously, the organoleptic properties of the aerosols formed are even more satisfactory when the reconstituted plant leaf included in the consumable according to the invention has an SP / SAg ratio in the ranges mentioned above.

[0076] The plant fibers and the plant extract may be obtained independently from a plant selected from spore-producing plants, seed-producing plants, or a mixture thereof. In particular, the plant may be a plant selected from tobacco plants, food plants, aromatic plants, perfume plants, medicinal plants, or a mixture thereof.

[0077] The plant may preferably be the tobacco plant.

[0078] If the plant is a medicinal plant, the aerosol generated by heating the reconstituted plant leaf may also have therapeutic properties so that the reconstituted plant leaf can be used for therapeutic treatment.

[0079] Advantageously, a plant extract obtained from a mixture of plants makes it possible to offer a wide range of organoleptic properties 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. of the mixture, for example the tobacco plant, an aromatic plant or a perfume plant.

[0080] The plant fibers may be obtained from a first plant and the plant extract may be obtained from a second plant. Indeed, the fibers of a plant may not have mechanical properties allowing the formation of a fibrous support, but the extract of this plant may confer on the aerosol the desired organoleptic properties and / or therapeutic properties. Conversely, the fibers of a plant may have mechanical properties allowing the formation of a fibrous support, but the extract of this plant may not confer on the aerosol the desired organoleptic properties and / or therapeutic properties.

[0081] Advantageously, the mixture of plants to obtain the plant fibers makes it possible to adjust the mechanical properties of the reconstituted plant leaf and / or the organoleptic or chemical properties of the aerosol.

[0082] When the plant is the tobacco plant, the tobacco fibers and the tobacco extract may be obtained from any tobacco plant or tobacco-type 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.

[0083] Generally, food plants are garlic, coffee, ginger, licorice, rooibos, Stevia rebaudiana, tea, cocoa, chamomile, mate, star anise, fennel, lemongrass.

[0084] Typically, aromatic plants are basil, turmeric, cloves, bay leaf, oregano, mint, rosemary, sage, thyme.

[0085] Generally, the fragrant plants are lavender, rose, eucalyptus.

[0086] Typically, medicinal plants are those indicated 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 include compounds with therapeutic properties. Typically, the medicinal plants listed are ginkgo, ginseng, sour cherry, peppermint, willow and red vine.

[0087] Typically, eucalyptus is one of the medicinal plants known to include compounds that have therapeutic properties.

[0088] Typically, the plant fibers and plant extract of the reconstituted plant leaf of the present invention may be derived from various parts of the plant, the plant parts being parts of the plant itself or the result of processing various parts of the plant. Typically, the plant parts may be whole parts of the plant or debris from threshing or mixing and chopping the plant parts.

[0089] Typically, the parts of the plant may be chosen from the parts of the plant richest in aromatic compounds giving the aerosol its organoleptic properties. Typically, these parts may be the whole plant, the aerial parts of the plant, such as the flower bud, the branch bark, the stem bark, the leaves, the flower, the fruit and its peduncle, the seed, the petal, the flowering top, or the underground parts, for example the bulb, the roots, the root bark, the rhizome, or a mixture thereof. The part of the plant may also be the result of the mechanical, chemical or mechanochemical treatment of one or more parts of the plant, such as for example the shell protecting the cocoa bean resulting from the process of hulling the bean.

[0090] Typically, the parts of the tobacco plant may be the parts richest in aromatic compounds giving the aerosol its organoleptic properties. Typically, the parts of the tobacco plant may be the parenchyma (lamina), possibly with the addition of the ribs of the tobacco plant. Typically, the parts of the tobacco plant may be the leaves of the tobacco plant or the debris from threshing or mixing and chopping into scaferlati the leaves and ribs of the tobacco plant.

[0091] Among the food plants, garlic bulb, coffee cherry, star anise fruit, ginger rhizome, licorice root and rooibos, Stevia rebaudiana or tea leaves can for example be chosen as parts.

[0092] Among the aromatic plants, one can select as parts, for example, the flower buds of the clove tree (cloves), the leaves of basil, bay and sage, the leaves and flowering tops of mint, oregano, rosemary and thyme, or the rhizome of turmeric.

[0093] Typically, among the perfume plants, the flower and flowering top of lavender, or the bud and petals of the rose flower can be selected.

[0094] Among the medicinal plants listed in the French pharmacopoeia, one can, for example, choose the gingko leaf, the underground part of ginseng, the stalk of the sour cherry fruit (cherry tail), the leaves and flowering top of peppermint, the bark of the stem and leaves of the willow, or even the leaves of the red vine.

[0095] The density of the reconstituted plant leaf of the consumable I of the present invention may be from 1.5 g / cm3 to 0.60 g / cm3, in particular from 1 g / cm3 to 0.65 g / cm3.

[0096] Alternatively, the density of the reconstituted plant leaf of the consumable I 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.

[0097] Advantageously, a density within these ranges of values ​​makes it possible to generate, at a comfortable pull resistance, an aerosol having satisfactory organoleptic properties, i.e. having a constant high taste intensity and a constant high volume.

[0098] The density of the reconstituted plant leaf is calculated by dividing its weight by its thickness.

[0099] To determine the weight of the reconstituted plant leaf, the following method can be used: a sample of 0.25 m2 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 quarters and placed on a hot plate to be dried in a way that removes the water without removing the aerosol-generating agent. The dried sample is then weighed to determine the weight of the plant leaf.

[0100] To determine the thickness of the reconstituted plant leaf, 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 to measure the thickness of the reconstituted plant leaf (6 measurements minimum on a layer, on places marked on the paper), - the reconstituted plant leaf sample is placed between 2 layers of baking paper, - as soon as the micrometer probe is in place, wait 30 seconds before taking the measurement (stabilization of the sample for thickness measurement), - 6 measurements minimum at the locations marked on the sheet of baking paper, - the thickness of the calculated reconstituted plant leaf is the average of the overall thickness measured (reconstituted plant leaf + 2 layers of parchment paper) from which is subtracted 2 times the average thickness of the parchment paper.

[0101] Typically, the reconstituted plant sheet may have a grammage of less than 300 g / m2, in particular from 60 g / m2 to 250 g / m2, very particularly from 80 g / m2 to 200 g / m2, even more particularly from 105 g / m2 to 130 g / m2.

[0102] Typically, the thickness of the fibrous support of the reconstituted plant leaf may be from 100 pm to 450 pm, in particular from 120 pm to 375 pm, very particularly from 140 pm to 325 pm, even more particularly from 180 pm to 250 pm.

[0103] A person skilled in the art will know how to adapt the weight and thickness of the reconstituted plant leaf in order to obtain the desired density. For example, to obtain these thickness and / or density values, the reconstituted plant leaf of the consumable Ide the invention may undergo a calendering step. Thus, the reconstituted plant sheet of the invention may be calendered.

[0104] The reconstituted plant leaf may be in particulate form, in creped leaf form, in scaferlatis form, or combinations thereof, particularly in scaferlatis form.

[0105] According to a particular embodiment: - the paper of the bag 11 may be a tobacco wrapper having a grammage of 40 g / m2 to 50 g / m2, an air permeability of 45 to 55 CORESTA units and a thickness of 95 pm to 105 pm, - the reconstituted plant leaf may include: - a fibrous support comprising tobacco fibers, - a tobacco extract, and - glycerin as an aerosol-generating agent wherein the total dry matter content of the tobacco extract may be 45% to 50%, wherein the total dry matter content of the glycerin may be from 14.5% to 15.5%, and wherein the ratio between the mass of the reconstituted plant leaf and the internal volume of the sachet 11 may be from 0.53 g.cm3 to 0.56 g.cm3.

[0106] Advantageously, the aerosol generated by the consumable I of this specific embodiment has a high taste intensity and a high volume.

[0107] The consumable I may further comprise one or more parts of natural plant leaves, in particular one or more parts of natural tobacco leaves in the interior volume of the sachet 11.

[0108] Also provided is a method of manufacturing an Itel consumable as defined above comprising the following steps: (a) providing a paper tube enveloping a reconstituted plant leaf between two of its open ends, and b) seal the two open ends of the tube to make consumable 1.

[0109] The tube involved in step a) has a cylindrical shape, in particular having a circular base, and, in particular, a length of 10 mm to 30 mm, in particular of 15 mm to 25 mm.

[0110] The tube can be obtained by any method known to those skilled in the art.

[0111] The tube paper is the sachet paper 11 as defined above in relation to the consumable I of the present invention.

[0112] The reconstituted plant leaf is as defined above in relation to the consumable I of the present invention.

[0113] The paper of the tube involved in step a) may wrap the reconstituted plant leaf from one open end to the other open end. This tube is referred to by those skilled in the art as a reconstituted plant rod. Before step b), this tube may be subjected to a compacting step to obtain a tube in which the reconstituted plant leaf is compacted between its two open ends. This tube is then involved in step b).

[0114] Sealing step b) may be carried out by gluing the two open ends of the tube, by knurling the two open ends of the tube, or by combinations of these methods, in particular by knurling the two open ends of the tube.

[0115] The glue used in step b) of sealing by gluing is as defined above in relation to the consumable I of the present invention.

[0116] During step b), the knurling of the two open ends of the tube can be carried out using a joint gear wheel.

[0117] The reconstituted plant sheet may be manufactured according to the following steps: cl) passing plant fibers through a paper machine to produce a fibrous support, c2) contacting a plant extract with the fibrous support, and contacting at least two fibrous supports when the reconstituted plant sheet comprises more than one fibrous support, to obtain a wet reconstituted plant sheet, and c3) drying the wet reconstituted plant sheet to produce the reconstituted plant sheet, wherein an aerosol-generating agent is incorporated during step c2) and / or between steps c2) and c3).

[0118] The fibrous support may be produced using a paper machine. According to a preferred embodiment of the invention, the reconstituted plant sheet of the consumable 1 according to the invention may be a reconstituted plant sheet obtainable by a papermaking process.

[0119] The plant fibers and the plant extract can be obtained according to the following steps: (d) mixing one or more parts of the plant with a solvent in order to extract the plant extract from the plant fibres, e) separating the plant extract from the plant fibers.

[0120] The plant extract and the plant fibers are thus typically obtained by means of a dissociation process. In step d), one or more plant parts are mixed with a solvent, for example in a digester, in order to extract the plant extract from the plant fibers. In step e), 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.

[0121] Typically, the solvent may be an apolar solvent, an aprotic polar solvent, a protic polar solvent, or a mixture thereof, in particular the solvent may be methanol, dichloromethane, ethanol, acetone, butanol, water or a mixture thereof, more particularly the solvent is ethanol, acetone, water or a mixture thereof.

[0122] The solvent may be an aqueous solvent, more particularly the solvent is water.

[0123] A person skilled in the art will know how to adapt the temperature of the solvent during step d) to the plant, the part of the plant and the parts of the plant to be treated. Typically, the temperature of the solvent during the treatment of a root or bark will be higher than the temperature of the solvent during the treatment of a leaf or petal.

[0124] Typically, the temperature of the solvent during step d) may be from 10°C to 100°C, in particular from 30°C to 90°C, more particularly from 50°C to 80°C.

[0125] The temperature of the solvent may typically be from 30°C to 80°C. This range is adapted to the fact that the solvent is water and the plant is tobacco. Typically, for the treatment of the ribs of a tobacco plant, the temperature of the water may be from 50°C to 80°C. Typically, for the treatment of the parenchyma of a tobacco plant, the temperature of the water may be from 30°C to 70°C.

[0126] Typically, plant fibers may be refined in a refiner and are then involved in step cl).

[0127] Typically, plant fibers can be sourced from a variety of plants.

[0128] The fibers of each plant can be obtained separately according to the dissociation process described above. They can then be mixed so that this mixture of fibers from different plants passes through the paper machine so as to constitute the fibrous support. It is also possible to obtain fibers from different plants together by bringing together 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 to be treated and, in particular, to the plant requiring the highest water temperature for the extraction of the extract from this plant. This alternative embodiment is very advantageous because it makes it possible to obtain the fibers from the different plants without carrying out several dissociation processes in parallel.

[0129] Typically, the plant extract may be an extract of various plants.

[0130] The extract of various plants can be obtained by mixing various plant extracts obtained separately according to the dissociation method 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 method 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 this plant. This alternative embodiment is very advantageous because it allows the extract of different plants to be obtained without carrying out several processes in parallel. In these two situations, the extract of various plants is brought into contact with the fibrous support during step c2).

[0131] Typically, different plant extracts, obtained according to the dissociation method described above, can also be brought into contact with the fibrous support separately during step c2).

[0132] Typically, the plant extract may be concentrated before being contacted with the fibrous support in step c2). A device such as a vacuum evaporation device may be used to concentrate the plant extract.

[0133] Typically, in step c2), the plant extract and the aerosol-generating agent may be contacted with the fibrous support one after the other, or may be mixed so as to be contacted with the fibrous support together.

[0134] Typically, step c2) can be carried out by impregnation or by spraying, in particular by impregnation. Typically, the impregnation can be carried out by means of a size-press.

[0135] Typically, drying step c3) can be carried out by infrared ramp, American battery drying rollers, hot air drying in a tunnel dryer, a vertical dryer, a fluidized bed dryer, a pneumatic dryer, in particular in a tunnel dryer.

[0136] The reconstituted plant leaf produced in step c3) can be shaped into particulate form, into creped sheet form, into scaferlatis form during an optional step c4). This shaped reconstituted plant leaf is then involved in step a).

[0137] Also proposed is a non-therapeutic use of a consumable 1 as defined above in a device for heating tobacco without burning it.

[0138] For the purposes of the present invention, the term "device for heating tobacco without burning it" means any device which 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 very significantly reducing their exposure to harmful constituents.

[0139] Typically, a heating device comprises, in the direction of the air flow, an air inlet, a heating body, a dedicated housing intended to place and maintain the consumable 1 of the invention, and an air outlet intended to be introduced into the user's mouth. The air inlet, the heating body, the dedicated housing and the air outlet are typically connected at least fluidically to each other.

[0140] Typically, when the heating device is in use, the user draws air into the heating device via the air inlet; the drawn air then comes into contact with the consumable I of the invention, held in the dedicated housing and heated by the heating body, 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.

[0141] Furthermore, thanks to the heating device, there is no combustion of the consumable 1. The user can therefore benefit from the organoleptic properties of the plant, and possibly of the tobacco, while very significantly reducing his exposure to harmful components.

[0142] An Itel consumable as defined above is also proposed for use in a heating device for therapeutic purposes, the plant being chosen from medicinal plants. Examples

[0143] Example 1: Manufacture of consumables according to the present invention.

[0144] In this example, the consumables for samples 1 to 14 were manufactured as follows: 1 / a conventional paper cigarette tube was manufactured by the following conventional process: a 70 mm x 25 mm rectangle of paper was cut from a wrapper reel, 1.68 mg of glue was applied along the entire 70 mm of the paper rectangle over a width of 2 mm with a 2 mm wide spatula, the paper is wrapped around a first stainless steel rod 100 mm long and 7 mm + / - 0.02 mm in diameter, bringing the glued side closer to the unglued side so as to form a wrapper tube. manual pressure was applied along the entire 70 mm length, with the stainless steel rod still inside the casing tube, the first stainless steel rod was then removed to obtain the tube, 630 mg of reconstituted tobacco leaf (in the form of scaferlati) was introduced into the chamber of the Coresta Making cigarette making machine (7.2 mm in diameter), manufactured by EFKA (Germany). The prepared tube was installed in the Coresta Making device at the designated location. By operating the lever of the cigarette making machine, the reconstituted tobacco leaf was pushed inside the hollow tube. A 70 mm long rod of reconstituted tobacco was thus prepared. It was then cut into smaller portions of 20 mm in length.2 / Two second stainless steel rods of smaller diameter (5 mm diameter) were placed at each open end of the reconstituted tobacco rod and then simultaneously inserted inside the tube. As a result, the reconstituted tobacco leaf was compressed inside the tube and two 4 mm voids were formed at each open end of the tube once the two stainless steel rods were removed. 3 / The sealing of the two open ends of the tube is carried out in the following way: a stainless steel rod is removed from one of the open ends, 0.136 mg of glue was applied with a spatula over a width of 1 mm on the paper, inside the open end, at a distance equivalent to half the diameter of the tube, this open end was pressed with a stainless steel plate for 5 seconds to obtain an effective seal, these 3 steps were duplicated at the other open end of the tube to obtain the consumable.

[0145] All examples are made with this protocol, except samples 9, 10, 12, 13, 14, which were made with: an initial rectangle of 70 mm x 27 mm, a first stainless steel rod with a diameter of 7.8 mm + 0.02 mm, a Privileg King size cigarette making machine (8 mm diameter), 0.151 mg of glue applied to the inside of the open end, 875 mg of tobacco used for samples 9 and 10, 1050 mg for sample 12, 1138 mg for sample 13, and 1488 mg for sample 14.

[0146] 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.

[0147] In addition to the differences mentioned above, other differences between the different consumables are the paper (see the properties of the different papers in [Table 1] below), the glue and the reconstituted tobacco.

[0148] These differences are presented in [Table 2] below.

[0149] [Tables 1] Paper Paper weight (g / m2) Air permeability of paper (Coresta) Thickness (pm) Tobacco wrapper 46 50 100 Cigar paper 23.5 25 40 Porous filter paper 21.5 27100 82

[0150] Example 2: Comparison of the pull resistance and organoleptic properties of the aerosols generated by the consumables of Example 1 and by a commercially available consumable.

[0151] 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.

[0152] These samples are successively evaluated by an independent expert in the Arkx® heating device. The reconstituted tobacco leaf of the commercial consumable Heets™ is also evaluated in the same heating system, but this reconstituted tobacco leaf is not wrapped.

[0153] The experiences provided by the consumables according to the invention are comparable to the experience provided by the commercially available consumable.

[0154] Nevertheless, the experiences provided by certain consumables according to the invention are slightly better than the experiences provided by the other consumables according to the invention.

[0155] 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 of sample 7, the consumable of sample 9 generates an aerosol with a more intense tobacco taste, a larger volume, a greater amplitude in the mouth and a greater irritation (which is positive because it is closer to the experiences provided by conventional cigarettes). In addition, the consumable of sample 9 allows for a longer experience. The consumable of sample 9 also allows for a more comfortable experience since the draw resistance is more comfortable and less variable, and - compared to the consumable of sample 8, the consumable of sample 10 generates an aerosol with a more intense tobacco taste. In addition, the consumable of sample 10 allows for a longer experience. The consumable of sample 10 also allows for a more comfortable experience since the draw resistance is more comfortable and less variable.

[0156] Without wishing to be bound by any theory, the inventors are of the opinion that this difference in terms of experience may result from: - tobacco wrapper which brings a tobacco aroma to the aerosol when it passes through the tobacco envelope, 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.

[0157] [Tables2] Sample on Paper Reconstituted Plant Leaf Glue Aerosol generating agent, SAg (%) SP (%) Density (g / cm3) R ec .c 1 Tobacco wrapper Glycerin: 15%. 42 0.5 A o, 2 Tobacco wrapper Glycerin: 16.5%. 55 0.58 A o, 3 Cigarette paper Glycerin: 15%. 42 0.5 A o, 4 Cigarette paper 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 wrap Glycerin: 15%. 48 0.49 B 0.10 Tobacco wrap Glycerin: 15.2%. 50 0.52 B 0.11 Tobacco wrap Glycerin: 18.4% Propylene glycol: 4.2% 53 0.55 B 0.12 Tobacco wrap Glycerin: 23.7%. 51 0.68 B 0.13 Tobacco wrap Glycerin: 21.2%. 58.3 0.71 B 0.14 Tobacco wrap 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-not-burn consumable (1) comprising: - a paper sachet (11) with an interior volume, - a reconstituted plant leaf contained in the interior volume of the sachet (11), wherein the reconstituted plant leaf comprises: - one or more fibrous supports, each fibrous support comprising plant fibers, - a plant extract, and - an aerosol-generating agent, wherein the paper of the sachet (11) is a tobacco wrapper having a grammage of 32 g / m2 to 51 g / m2.

2. Consumable (1) according to claim 1, wherein the ratio between the mass of the reconstituted plant leaf and the internal volume of the sachet (11) is from 0.30 g.cm3 to 1.5 g.cm3.

3. A consumable (1) according to claim 1 or claim 2, wherein the sachet (11) has two sealed ends (111, 112) and a third seal (113) connecting the two sealed ends (111, 112).

4. A consumable (1) according to claim 3, wherein at least one of the two sealed ends (111, 112) is a glued seal, a knurled seal or combinations thereof.

5. Consumable (1) according to claim 4, 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.

6. Consumable (1) according to any one of claims 1 to 5, wherein the total dry matter weight content of the aerosol-generating agent is 10% to 30%.

7. Consumable (1) according to any one of claims 1 to 6, wherein the total dry matter weight content of the plant extract is 30% to 70%.

8. Consumable (1) according to any one of claims 1 to 7, 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.

9. A consumable (1) according to any one of claims 1 to 8, wherein the plant of the reconstituted plant leaf is the tobacco plant.

10. Consumable (1) according to any one of claims 1 to 9, wherein the density of the reconstituted plant leaf is from 1.5 g / cm3 to 0.60 g / cm3 or less than 0.60 g / cm3.

11. A method of manufacturing a consumable (1) as defined in any one of claims 1 to 10, comprising the steps of: a) providing a paper tube enveloping a reconstituted plant leaf between its two open ends, and b) sealing the two open ends of the tube to manufacture the consumable (1).

12. A method according to claim 11, wherein the reconstituted plant sheet is manufactured according to the following steps: cl) passing plant fibers through a paper machine to produce a fibrous support, c2) contacting a plant extract with the fibrous support, and contacting at least two fibrous supports when the reconstituted plant sheet comprises more than one fibrous support, to obtain a wet reconstituted plant sheet, and c3) drying the wet reconstituted plant sheet to produce the reconstituted plant sheet, wherein an aerosol-generating agent is incorporated during step c2) and / or between steps c2) and c3).

13. Non-therapeutic use of a consumable (1) as defined in any one of claims 1 to 10 in a device for heating tobacco without burning it.

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