ES2623954T3 - Cigarette equipped with a self-ignition device - Google Patents

Abstract

Cigarette equipped with a self-ignition device comprising: - a primary chemical material (7) located at the end to be lit (4) of the cigarette (1), - a secondary chemical material (8) incompatible with the primary material (7 ), said primary and secondary materials being able to ignite when they are in reciprocal contact, - the secondary material (8) is included in a receptacle (9) that is initially disposed at one of the ends of the cigarette, depending on an arrangement that prevents the contact of said secondary material with the primary material (7), where said receptacle is removable and is configured to be placed against the end to be turned on (4), depending on an arrangement that allows the contact of said secondary material with said primary material, characterized in that the receptacle (9) is initially fixed at the inhalation end (5) opposite the end to be turned on (4), where d said receptacle is separable to allow independent handling of the cigarette (1) and said receptacle.

Description

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DESCRIPTION

Cigarette equipped with a self-ignition device Technical scope of the invention

The invention relates to a cigarette equipped with a self-ignition device and a method for lighting a cigarette.

It refers to the technical field of pyrotechnic devices, and more particularly to those intended for cigarette lighting and that provides an alternative to traditional means, such as lighters or matches.

State of the art

Cigarette self-ignition devices belonging to the prior art are described in the following patent documents: FR 2 905 231 (Charli ABISDID), BG 407 714 (M. MARGOLIS), DE 3 509 293 (LIECHTENSTEIN RICHARD VON), EP 0 066 021 (YOO, BYUNG EON) FR 7 539 535 (TOKYO ENGINEERING CO.) D5: GB 314 145 (Piedad and Alejandro LIFCHUZ), FR 709 175 (Giulio TURRI), JP 2005 5 224 232 (ISHIKAWA JOJI), GB 406 153 (Ansley HERMAN FOX). These devices comprise a priming material configured to ignite a flammable material under the effect of an impact or a rub. The rubbing bands that are usually used are worn out as cigarettes are lit. And the more spent the band is, the more difficult it is to light a cigarette.

To overcome this problem, documents FR 1 014 899 (Louis Thomas FONDO), BG 1 012 826 (Pierre JACQUET), BG 97 941 (BONCHEV MIROSLAV B.), GB 356 861 (Robert SUTHERLAND), GB 752 365 (Hans HANNO MOSER ), GB 790 341 (Kurt KORBER) propose self-ignition devices that include a primary chemical material located at the end of the lighting cigarette and a secondary chemical material incompatible with the primary material. These devices use the principle of incompatibility of chemical materials that ignite spontaneously when they come into contact. In practice, the secondary chemical material can:

- be conditioned on one of the faces of the cigarette pack so that when handling said pack, said secondary chemical material can be released which can, in fact, cause difficulties to light cigarettes later,

- put into individual containers, so it is essential not to forget to bring these containers to light cigarettes.

More particularly, in US 3 109 435 (PALEY) a cigarette equipped with a self-ignition device is disclosed which comprises: a primary chemical material located at the end of the lighting cigarette and a secondary chemical material incompatible with said primary material. The secondary material is included in a removable receptacle configured to be placed against the end to be turned on, depending on an arrangement that allows the contact of said secondary material with the primary material. The receptacle described in this document is initially arranged on the end to be turned on. Using such a device it is not possible to avoid the risk of accidental release of the receptacle or to come into contact with the primary ignition material.

In this situation state, the invention has the main objective of providing a device that makes it possible to light a cigarette with ease, while overcoming the shortcomings related to the conditioning of the secondary chemical material known in the prior art.

The invention also aims to provide an easy-to-use, simple design and low-cost self-ignition device.

Disclosure of the invention

The solution proposed by the invention consists of a cigarette equipped with a self-ignition device comprising:

- a primary chemical material located at the end of the cigarette that is lit,

- a secondary chemical material incompatible with the primary material, where said primary and secondary materials may ignite when they are in redproco contact.

The secondary material is included in a receptacle that is initially disposed at one of the ends of the cigarette, depending on an arrangement that prevents said secondary material from coming into contact with the primary material. And the receptacle is removable and is configured to be placed against the end to be turned on, depending on an arrangement that allows the contact of the secondary material with the primary material.

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This cigarette is remarkable because the receptacle is initially fixed to the inhalation end opposite the end to be lit, said receptacle being able to be separated to allow independent manipulation of the cigarette and said receptacle.

The fact of being able to associate a single receptacle to each cigarette allows the user to systematically have a sufficient dose of secondary material at his disposal, ensuring an effective lighting of his cigarettes. In addition, the design of such a receptacle can be carried out easily in an industrial manner and its use is attractive to the users and allows to limit the risks of accidentally releasing the receptacle from the inhalation end.

To prevent a cigarette from accidentally lighting when the package in which it is stored is shaken or crushed, the receptacle is advantageously configured to:

- be located at the inhalation end opposite the end of the cigarette that is lit, so that the secondary chemical material is initially physically separated from the primary chemical material,

- fit on the end to be lit, to bring the secondary chemical material into contact with the primary chemical material and ignite the end of the cigarette that is lit.

Depending on a first embodiment of the invention that allows to easily and quickly release the receptacle from the inhalation end and place it against the end to be turned on, said receptacle comprises a fixing zone configured to:

- fit on the inhalation end opposite the end of the cigarette that is lit,

- and fit over the end to be turned on.

To quickly and efficiently integrate the receptacle to a cigarette, at the time of its manufacture:

- a filter can be fixed by means of a packaging on the inhalation end of the cigarette,

- the receptacle can be a cylindrical tube arranged in the extension of the filter, where the packaging ensures the fixing of said tube on said filter.

In the absence of a filter, the receptacle is a cylindrical tube arranged in the extension of the inhalation end, where said receptacle is fixed by means of a packaging directly on said inhalation end.

In order for the user to easily separate the receptacle from the rest of the cigarette, the packaging advantageously comprises a fragile part at the level of the union of the filter (or of the inhalation end) and of said receptacle. This fragile part allows the receptacle to be separated manually by traction, flexion, torsion or rotation.

In order to facilitate the location of the receptacle against the end to be turned on, said receptacle is preferably presented in the form of a cylindrical tube configured to fit over said end that is to be turned on and to bring the secondary chemical material into contact with the chemical material. primary.

To prevent the secondary material from leaving the receptacle when the packet in which the cigarette is conditioned is pressed, said secondary material is preferably conditioned in one or several capsules arranged in the receptacle, where said receptacle includes one or more flexible walls that allow breaking said capsules by crushing when a pressure effort is exerted on said or said flexible walls.

In function of another advantageous feature of the invention that ensures optimum conditioning of the secondary material while facilitating its removal from the receptacle, said receptacle is closed by means of a breakable sealing opercle.

Depending on another advantageous feature of the invention that allows respecting the sanitary standards in force, the primary chemical material comprises potassium permanganate and the secondary chemical material comprises glycerin. The pair of primary and secondary chemical materials "potassium permanganate / glycerin" allows to rapidly inflame the end of the cigarette that is ignited easily eliminating with the ash when combustion of said end.

Description of the figures

Other advantages and features of the invention will be more fully understood after reading the description of a preferred embodiment below, with reference to the attached drawings, made by way of indicative and non-limiting examples in which:

- Figures 1 to 6 schematically represent the different stages that make it possible to light a cigarette by means of a self-igniting device in accordance with the invention,

- Figures 7a and 7b schematize a first example of realization of a self-igniting device of

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in accordance with the invention, the receptacle being respectively disposed at the level of the inhalation end of the cigarette and at the level of the end that it is desired to light of said cigarette,

- Figures 8a and 8b schematize a second example of realization of a self-igniting device according to the invention, the receptacle being respectively arranged at the level of the inhalation end of the cigarette and at the level of the end that it is desired to light said cigarette,

- Figures 9a and 9b schematize a third example of realization of a self-igniting device of non-conformity with the invention and which is not covered by the claims, the receptacle being arranged at the level of the end of the cigarette that is lit.

Modes of realization of the invention

The invention allows a cigarette to be ignited 1. "Cigarette" means a classic cigarette with or without a filter, a cigarette, a cigar, or other similar object that can be consumed by a smoker. As schematized in Figures 1 to 6, a cigarette 1 is generally presented in the form of a cylinder formed by a sheet of paper 2 and inside which chopped tobacco sheets 3 are disposed. It has a diameter that can vary from 3 mm to 7 mm and a length that can vary from 60 mm to 100 mm. It includes an end that is to be turned on 4 and an inhalation end 5 opposite to said end that is to be turned on. The inhalation end 5 may primarily include a filter 6.

The self-igniting device object of the invention comprises a primary chemical material 7 (or "to be fired" material) intended to be located at the end that is desired to light 4 of the cigarette 1. The primary chemical material 7 can be located by impregnation, coating, compression, insertion in the leaves of tobacco 3, of a liquid, gel, solid, microcapsules, crystals, granules, etc. In practice, the primary material 7 is presented at a depth of a few millimeters from the end to be lit 4. The placement of the primary material 7 is preferably performed at the time of manufacture of the cigarette 1.

Depending on the chosen form, a drying of the primary material 7 can be provided so as to ensure the compatibility of the technology before storing the cigarette 1 in a package for a prolonged period. Indeed, a non-dry material could contaminate the package, it could cause the cigarettes to stick together, it could dirty the fingers, the user's clothes or the objects (such as tables or ashtrays) on which the cigarette 1 is placed, etc.

Likewise, the use of a liquid primary material 7 that is previously encapsulated makes it possible to prevent said primary material from being accidentally dispersed, allowing the user to break this encapsulation by an appropriate voluntary action (for example, by pressure crushing the end of the cigarette 1 between two fingers). The encapsulation technique can also be provided with a solid primary material 7.

The self-igniting device object of the invention also comprises a secondary chemical material 8 (or "ignition" material) selected to be incompatible with the primary chemical material 7. In fact, the primary and secondary materials can react and ignite when they are in redproco contact. . By "inflame", it is understood in the sense of the present invention, to produce a thermal energy (for example from 150 ° C to 700 ° C), with or without a flame, capable of lighting the cigarette 1. Secondary material 8 may be presented in the form of a liquid, a gel, a solid, microcapsules, crystals, granules, etc.

The primary material pair 7 / secondary material 8 may, for example, be an oxidizing / combustible pair of potassium permanganate / glycol type; silver nitrate / red phosphorus; silver / sulfur nitrate; chlorates and boric acid / glycols; aluminum / tincture of iodine; metallic sodium or other metals of the same family / water or reagents with alcoholic termination; ranley nickel or phosphoric / oxidizing materials (MnO2, chlorate); nitrocellulose / strong acids (sulfuric, hydrochloric); etc.

Additional substances may be used to dilute, bind, fix, activate or, conversely, slow down or inactivate the incompatible base chemical materials used in the invention. In addition, other substances can be used to reinforce the resistance of primary 7 and secondary materials 8 in ambient conditions, especially humidity (for example water-repellent substances). It is possible to improve the flammability of tobacco by impregnating the end to be ignited 4 with a "sensitizing" material such as nitrocellulose, before depositing the primary material 7. This offers the advantage of making ignition reliable by allowing the reduction of primary material 7 to a minimum. indispensable.

The respective amounts of primary 7 and secondary chemical 8 may vary from 0.1 mg to 5 mg per cigarette.

Preferably, in order to respect the sanitary norms in force and eliminate the risks of toxicity, the primary material 7 may comprise potassium permanganate and the secondary material 8 may comprise glycerin. Glycerin is a product used in general as a food additive: it comes in the form of a viscous, transparent, colorless, odorless, non-toxic and sugary-tasting liquid. With regard to potassium permanganate, it is an inorganic salt generally used as a disinfectant and as a deodorant. It is used primarily for the treatment of drinking water.

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The chemical reaction initiated by this pair of chemical materials is not instantaneous, a small incubation period of a few seconds being necessary, without causing the user to think that the cigarette is not lit. The reaction is announced by a prior release of non-toxic smoke consisting solely of carbon dioxide and water vapor. The reaction is not very strong and its effect is similar to that caused by the flame of a lighter or a phosphorus. Once the reaction is over, the end 4 of the cigarette is sufficiently lit to allow the smoker time to put the cigarette to his lips and begin to suck the tobacco smoke assuring him that he will not aspirate the smoke from the incompatibility reaction. This ensures the self-ignition of cigarette 1 and gives guarantees to the user. In addition, these two chemical materials are stable enough to ensure a sufficient duration of use over time.

To offer the user, in a single operation, everything he needs to light his cigarette as soon as he removes it from the package, the secondary material 8 is included in a receptacle 9 that is initially disposed at one end of the cigarette, depending on an arrangement that prevents the entry of said secondary material into contact with the primary material 7. This receptacle 9 is removable and is configured to be located against the end to be turned on 4, depending on a provision that allows the contact of the secondary material 8 with the primary material 7. In practice, the secondary material 8 is arranged in a removable receptacle 9 configured to fit the end to be switched on 4. By "adjusting", it is understood in the sense of the present invention, the possibility of that receptacle 9 is located on, against and / or around the end to be turned on 4, with the possibility or not of being fixed on said end. In this way, the primary 7 and secondary 8 materials are already present in the cigarette 1, the user not having to keep the package in the hand or an element that includes the secondary material, unlike the mayona of the solutions known in the prior technique When the user buys a package, each cigarette already has its own receptacle 9 included, which allows to limit the amount of secondary material used to a minimum.

The receptacle 9 may have a cylindrical, spherical, parallelepiped or other shape and be made of paper, preferably plasticized cardboard, plastic, rubber, wadded or "expanded" type material used for the manufacture of cigarette filters, etc. . It can have one or more ends open towards the outside or be completely closed. In practice, receptacle 9 is in the form of a cylindrical tube, preferably closed at one of its ends 19 and whose outer diameter corresponds substantially to that of cigarette 1. The diameter of receptacle 9 can, for example, vary from 2 mm to 8 mm Its length can vary from a few millimeters to several centimeters.

For safety reasons, it is advantageous that the secondary material 8 cannot accidentally come into contact with the primary material 7. For this reason, the receptacle 9 is advantageously located initially, preferably fixedly, at the inhalation end 5, that is, away from the primary material 7. Therefore, the contact of the two chemical materials can only be voluntary. Before this action, the primary material 7 is physically isolated from the secondary material 8.

Depending on a first embodiment represented in Figures 7a and 7b, the receptacle 9 comprises a fixing zone 11 configured to fit on the inhalation end 5 and on the end to be turned on 4. This fixing zone 11 is It is in the form of a cylindrical portion that opposes the closed end 19 of the tube forming the receptacle 9. A breakable sealing operculum 10 forms the bottom of the fixing area 11, where the secondary material 8 is disposed between said opercle and the closed end 19 of receptacle 9. The other end of the fixing zone 11 is open so that its adjustment is allowed on the end to be switched on. 4. The fixing zone 11 has an equal or greater internal diameter (for example of 0.1 mm to 1 mm), to the external diameter of cigarette 1 and a length that can vary from 3 mm to 10 mm. When the receptacle 9 is initially adjusted on the inhalation end 5, one or two glue points can be provided in the fixing zone 11 so that any untimely separation is avoided.

In a variant embodiment shown in Figures 8a and 8b, the receptacle 9 is separable to allow independent manipulation of the cigarette 1 and said receptacle. The initial fixation of the receptacle on the inhalation end of the cigarette, combined with the detachable nature of said receptacle for handling it, offers great security. In this way the risk of accidental detachment of the receptacle and its contact with the primary ignition material is considerably limited. In practice, a filter 6 is fixed by means of a package 12 on the inhalation end 5 of the cigarette 1. This package 12 is generally presented in the form of a sheet of paper from which a part is wrapped around the inhalation end 5 and another part is wrapped around the filter 6. The packing 12 is generally sealed by gluing. The receptacle 9 is then presented in the form of a cylindrical tube initially fixed to the inhalation end 5, in the extension of the filter 6. The packaging 12 then ensures the fixation of the cylindrical tube that forms the receptacle 9 on the filter 6. The sheet of paper forming the package 12 has a length selected to be wrapped around: the inhalation end 5, the filter 6 and the tube forming the receptacle 9. In practice, the packaging 12 can comprise a fragile part 13 at the level of the joint of the filter 6 and of the receptacle 9, which allows to manually separate said receptacle for traction, flexion, torsion or rotation. This fragile part 13 may, for example, consist of a zone of smaller thickness or perforations made on the packaging 12, at the level of the union of the filter 6 and the receptacle 9. In practice, the receptacle 9 comprises a fixing area 11 configured to fit on the end to be switched on 4. This fixing zone 11 is in the form of a cylindrical portion that opposes the closed end

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19 of the tube forming the receptacle 9. A breakable sealing operculum 10 forms the bottom of the fixing zone 11, where the secondary material 8 is disposed between said opercle and the closed end 19 of the receptacle 9. The other end of the zone of fixing 11 is open so that its adjustment is allowed on the end to be switched on 4. The fixing zone 11 has an inside diameter equal to or greater (for example from 0.1 mm to 1 mm), to the external diameter of the 1 cigarette and a length that can vary from 3 mm to 10 mm.

In the absence of a filter 6, the receptacle 9 is always presented in the form of a cylindrical tube located initially, preferably fixedly, at the inhalation end 5, in the extension of the latter. The packaging 12, preferably provided with a fragile part 13, ensures the direct fixing of the receptacle 9 on the inhalation end 5. The placement of the receptacle 9 is carried out in this way in the same way as that of a filter on the cigarettes that include

With respect to figures 1, 2, 7a and 8a, the receptacle 9 is initially located at the level of the inhalation end 5 of the cigarette 1. However, it is possible to provide that the receptacle 9 is initially located at the level of the end to be turned on 4. This third embodiment of non-conformance with the invention and not covered by the claims is illustrated by Figures 9a and 9b. The receptacle 9 comprises two fixing zones 11a and 11b, each configured to fit on the end to be switched on 4. These fixing zones 11a, 11b are in the form of a cylindrical portion. The first fixing zone 11a is sealed with respect to the secondary material 8 and is located in the extension of the closed end 19 of the receptacle 9, while the second fixing zone 11b opposes said closed end.

The closed end 19 of the receptacle 9 forms the bottom of the first fixing zone 11a, which is in fact sealed. In this way, the primary material 7 can be physically isolated initially from the secondary material 8. The other end of the first fixing zone 11a is open so that its adjustment is allowed on the end to be turned on 4.

A breakable sealing operculum 10 forms the bottom of the second fixing zone 11b, where the secondary material 8 is disposed between said opercle and the closed end 19 of the receptacle 9. The other end of the second fixing zone 11b is open so that its adjustment is allowed on the end to be turned on 4.

The fixing areas 11a, 11b have an inside diameter equal to or greater (for example from 0.1 mm to 1 mm), to the external diameter of the cigarette 1 and a length that can vary from 3 mm to 10 mm. The first fixing zone 11a is initially set on the end to be turned on 4 (Figure 9a). One or two tail points can be provided so that any untimely separation is avoided. To bring the secondary material 8 into contact with the primary material 7, simply return the receptacle 9 and adjust the second fixing area 11b on the end to be turned on 4 (Figure 9b).

Instead or as a complement to the first fixing area 11a, it is possible to provide a detachable receptacle 9, similar to that described above for the second embodiment and schematized in Figures 8a and 8b, but initially fixed on the end to be turned on Four.

The secondary material 8 can be introduced directly into the receptacle 9 when it is in the form of solid, gel or cream. When in fluid form, a sponge-like sponge material can be inserted into receptacle 9, so that said secondary material 8 is contained, and a simple pressure on said spongy material allows said secondary material to be released.

It can also be initially conditioned in one or several capsules, which in turn can be placed later in the receptacle 9. In such a configuration with capsules, the receptacle 9 preferably includes one or more flexible walls that allow said capsules to be broken by crushing when an effort of lateral (perpendicular to the axis of the cigarette) or longitudinal (in the axis of the cigarette) pressure is exerted on said or said flexible walls.

To prevent secondary material 8 from escaping from receptacle 9, the latter may be closed by a breakable sealing operculum 10 made of paper, plastic, aluminum, etc. A simple pressure of the end that is desired to be ignited 4 on this opercle 10 allows to open it and release the secondary material 8. In practice, since the secondary material 8 is destined to leave the receptacle 9 from the fixing zone 11, the opercle of Breakable tightness 10 is situated at the level of this area.

However, it is possible to provide other technical solutions. The primary material 7 can, for example, be located in a small receptacle whose walls are configured (for example, with microperforations) to allow fluid secondary material 8 to pass through. This solution has the advantage of being able to preserve a primary material 7 in the powdery state, without prior treatment that can alter its crystalline characteristics.

Likewise, it is possible to imagine that the primary material 7 is deposited by sprinkling on a paper coated with an adhesive on which the particles of said primary material adhere. The adhesive loaded with particles of

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Primary material 7 is then wound around the end that it is desired to light 4 of cigarette 1.

The cigarette paper itself can also integrate an adhesive strip on the side of the end that is desired to be lit 4 of the cigarette 1: the paper is pre-loaded with particles of primary material 7 and is used in this way before loading the cigarette tobacco 1 .

Figures 1 to 6 illustrate how a smoker can light his cigarette with simple movements, whether he has said cigarette in one hand or carrying it without even lighting it in his mouth.

Depending on the first mode (figures 7a and 7b) and the second embodiment (figures 8a and 8b) the receptacle 9 is initially fixed to the inhalation end 5 opposite to the end that is desired to light 4 of the cigarette 1 so that the chemical material Secondary 8 is physically separated from the primary chemical material 7 (Figure 1). The user separates the receptacle 9 from the inhalation end 5 (figure 2) and places it with respect to the end to be turned on 4 (figure 3). The receptacle 9 is then contacted with the end to be turned on 4 so that the secondary material 8 humidifies the primary material of which the end to be lit 4 is coated (Figure 4). When the receptacle 9 is closed, the user can contact the secondary material 8 with the primary material 7 by crushing said receptacle (Figure 5). When the receptacle 9 is closed by means of a breakable sealing operculum 10, the user can contact the secondary material 8 with the primary material 7 by piercing said opercle by means of the end to be turned on 4. When the receptacle 9 opens towards the outside, the user can contact the secondary material 8 with the primary material 7 by directly inserting the end to be lit 4 of the cigarette 1 inside said receptacle. Once the secondary material 8 comes into contact with the primary material 7, the user removes the receptacle 9 from the end to be turned on 4 (Figure 6). The reaction starts and the end to be turned on 4 becomes inflamed.

Depending on the third embodiment of non-conformance with the invention and not covered by the claims (Figures 9a and 9b), it is begun by removing the opercle of the receptacle 9 on its free part that is not in contact with the desired end ignition 4. The receptacle 4 / cigarette 1 junction is then broken, and said receptacle is turned so that the second fixing zone 11b is adjusted against the end to be switched on 4. It is enough then to exert a pressure on the receptacle 4 to empty it of its secondary material 8 and start the reaction.

Claims (10)

5 10 fifteen twenty 25 30 35 40 Four. Five fifty 55 1. Cigarette equipped with a self-ignition device comprising: - a primary chemical material (7) located at the end to be lit (4) of the cigarette (1), - a secondary chemical material (8) incompatible with the primary material (7), said primary and secondary materials being able to ignite when they are in redproco contact, - the secondary material (8) is included in a receptacle (9) that is initially disposed at one of the ends of the cigarette, depending on an arrangement that prevents the entry of said secondary material into contact with the primary material (7), where said receptacle is removable and is configured to be located against the end to be turned on (4), depending on an arrangement that allows the contact of said secondary material with said primary material, characterized in that the receptacle (9) is initially fixed at the inhalation end (5) opposite the end to be switched on (4), where said receptacle is detachable to allow independent manipulation of the cigarette (1) and said receptacle. 2. Cigarette according to claim 1, characterized in that: - a filter (6) is fixed by means of a packing (12) on the inhalation end (5), - the receptacle (9) is a cylindrical tube arranged in the extension of the filter (6), where the packing (12) ensures the fixing of said tube on said filter. 3. Cigarette according to claim 1, characterized in that the receptacle (9) is a cylindrical tube arranged in the extension of the inhalation end (5), wherein said receptacle is fixed by means of a packaging (12) directly on said inhalation end 4. Cigarette according to one of claims 2 or 3, characterized in that the packaging (12) comprises a fragile part (13) that allows the receptacle (9) to be separated manually by traction, bending, twisting or rotation. 5. Cigarette according to one of the preceding claims, characterized in that the receptacle (9) is configured to: - be located at the inhalation end (5) opposite the end to be lit (4) of the cigarette, so that the secondary chemical material (8) is initially physically separated from the primary chemical material (7), - fit on the end to be ignited (4), to bring the secondary chemical material (8) into contact with the primary chemical material (7) and inflame the end to be ignited (4) of the cigarette (1). 6. Cigarette according to one of the preceding claims, characterized in that the receptacle (9) is in the form of a cylindrical tube configured to fit over the end to be lit (4) of the cigarette (1) and put contact the secondary chemical material (8) with the primary chemical material (7). 7. Cigarette according to one of the preceding claims, characterized in that the secondary chemical material (8) is arranged in one or several capsules arranged in the receptacle (9), wherein said receptacle includes one or more flexible walls that allow breaking said capsules by crushing when exerting a pressure effort on said or said flexible walls. 8. Cigarette according to one of the preceding claims, characterized in that the receptacle (9) is closed by a breakable sealing opercle (10). 9. Cigarette according to one of the preceding claims, characterized in that the primary chemical material (7) comprises potassium permanganate. 10. Cigarette according to one of the preceding claims, characterized in that the secondary chemical material (8) comprises glycerin.