Heating cigarette

Abstract

The invention relates to the field of tobacco, in particular to a heating cigarette. The heating cigarette comprises a filter tip section and a tobacco section, and the filter tip section and the tobacco section are wrapped and formed by wrapping paper. The outer end of the tobacco section is provided with a non-porous breathable sealing film, and the edge of 1 / 3-1 / 2 perimeter of the non-porous breathable sealing film is connected with the end of the wrapping paper. Or the outer end of the tobacco section is provided with a sealing film with holes, and the edge of at least one third of the perimeter of the sealing film with holes is connected with the end of the wrapping paper. The sealing film is partially connected with the wrapping paper at the outer end of the tobacco section, tobacco raw material residues during extraction are effectively prevented, and low cigarette suction resistance is achieved. Tests show that the outer end of the tobacco section is provided with the sealing film which is only connected with half of the wrapping paper, the suction resistance is obviously reduced compared with that of a cigarette which is fully connected with the sealing film, and a pulling experiment is carried out on 100 cigarettes, and the result shows that tobacco shreds have no residues.

Description

Technical Field

[0001] The invention relates to the field of tobacco, in particular to a heated cigarette. Background Art

[0002] At present, new tobacco is developing rapidly, and heated cigarette products, as a branch of new tobacco, are loved by many consumers. Heated cigarette products mainly use heating devices to heat the cigarette cartridges, and the cigarette cartridges produce smoke for consumers to inhale after being heated. At present, the more mainstream heating method of heating devices on the market is inner core heating, that is, there are needle-shaped / sheet-shaped heating elements in the heating chamber of the device. When the cigarette cartridge is inserted into the heating chamber, the heating element is powered on and the temperature rises, transferring heat to the cigarette cartridge, and the tobacco raw materials and atomizers in the cigarette cartridges produce smoke after being heated.

[0003] However, when consumers extract the cigarette cartridge after inhaling, the rolled tobacco material easily sticks to the heating element, causing the tobacco material to remain in the heating cavity or adhere to the surface of the heating element, affecting the consumer experience.

[0004] To this end, Philip Morris International Tobacco Company added a "plug" component at the end of the cigarette cartridge's smoking section to prevent the tobacco material inside the cigarette cartridge from remaining in the heating chamber during the extraction process. Although Philip Morris International Tobacco Company has provided a method to prevent tobacco raw materials from remaining in the heating chamber by changing the structure of the cigarette cartridge, this method changes the structure of the cigarette cartridge, and the "plug" material may produce odor after being heated. Summary of the invention

[0005] In view of this, the technical problem to be solved by the present invention is to provide a heated cigarette. When the heated cigarette provided by the present invention is heated by a heating device and smoked, it has high air permeability and can effectively prevent tobacco raw materials from remaining in the heating chamber when smoking is completed and extracted.

[0006] The present invention provides a heated cigarette, comprising: a filter segment and a tobacco segment, wherein the filter segment and the tobacco segment are wrapped and formed by wrapping paper;

[0007] The outer end of the tobacco segment is provided with a non-porous breathable sealing film, and the edge of 1 / 3 to 1 / 2 of the circumference of the non-porous breathable sealing film is connected to the end of the wrapping paper;

[0008] or,

[0009] The outer end of the tobacco segment is provided with a sealing film with holes, and at least 1 / 3 of the perimeter of the edge of the sealing film with holes is connected to the end of the wrapping paper.

[0010] The outer end of the tobacco segment of the present invention may be provided with a non-porous breathable sealing film, and the edge of 1 / 3 to 1 / 2 of the circumference of the non-porous breathable sealing film is connected to the end of the wrapping paper. For the non-porous breathable sealing film, by partially connecting it with the wrapping paper at the outer end of the tobacco segment, during the process of inserting the cigarette into the heating device, due to the influence of the force of the heating element, the unconnected part of the sealing film and the wrapping paper fall off to form an opening, which is conducive to air entering from the end of the cigarette, reducing the resistance of the cigarette to draw, and during the process of taking the cigarette, due to the influence of the reaction force of the heating element, the sealing film and the wrapping paper form a closed mouth to prevent the tobacco from falling into the heating chamber. For the non-porous breathable sealing film, it cannot be completely connected to the end of the wrapping paper, otherwise it is not conducive to air entry, so that the resistance to draw of the cigarette increases.

[0011] The outer end of the tobacco segment of the present invention may also be provided with a perforated sealing film, and the edge of at least 1 / 3 of the perimeter of the perforated sealing film is connected to the end of the wrapping paper, and preferably the edge of 1 / 3 to 1 / 2 of the perimeter of the perforated sealing film is connected to the end of the wrapping paper. For the perforated sealing film, it can also be partially connected to the wrapping paper at the outer end of the tobacco segment to achieve the effect of reducing the inhalation resistance of the cigarette and achieve a better smoking experience; the perforated sealing film can also be completely connected to the end of the wrapping paper, and because it is designed with holes, it still has a good smoking experience.

[0012] The air permeability of the non-porous breathable sealing film of the present invention is less than 100 CU. The non-porous breathable sealing film of the present invention is selected from paper, tow or polymer; the material of the sealing film with holes is selected from paper, tow or polymer. In some embodiments of the present invention, the sealing film with holes includes a mesh hole sealing film or a fish scale hole sealing film. Both the non-porous breathable sealing film and the sealing film with holes of the present invention can be easily pierced by the heating element.

[0013] The non-porous breathable sealing film of the present invention can be connected to the end of the wrapping paper by adhesion, electrostatic adsorption or physical card sealing, and the perforated sealing film can also be connected to the end of the wrapping paper by adhesion, electrostatic adsorption or physical card sealing. In some embodiments of the present invention, the outer end of the tobacco segment is provided with a non-porous breathable sealing film, and the edge of the non-porous breathable sealing film is provided with a needle-like structure, and the non-porous breathable sealing film is punctured and connected to the end of the wrapping paper through the needle-like structure, so that the edge of the non-porous breathable sealing film is connected to the end of the wrapping paper by physical card sealing. In other embodiments of the present invention, the outer end of the tobacco segment is provided with a perforated sealing film, and the edge of the perforated sealing film is provided with a needle-like structure, and the edge of the perforated sealing film is punctured and connected to the end of the wrapping paper through the needle-like structure, so that the edge of the perforated sealing film is connected to the end of the wrapping paper by physical card sealing.

[0014] The wrapping paper of the present invention has a gram weight greater than 40 g / cm 2 The filter segment of the present invention is made of acetate fiber tow material, and the length of the filter segment is 5 mm to 10 mm. The filter segment and the tobacco segment of the present invention also include an intermediate segment; the material of the intermediate segment is selected from paper, tow, or a solid component with a certain strength and shape, such as a ceramic material or a polymer material. The intermediate segment of the present invention has a cavity, so that the aerosol passes through the intermediate segment and the filter segment after being inhaled by the consumer, and finally reaches the consumer's mouth. The ratio of the weight of the intermediate segment of the present invention to the cavity volume of the intermediate segment is less than 1 mg / m 3 The length of the middle section of the present invention is 15 mm to 30 mm.

[0015] The present invention not only effectively prevents tobacco raw materials from remaining in the heating chamber through the above-mentioned cigarette structure design, but also the smoke of the tobacco raw materials of the tobacco segment is beneficial to the high air permeability of the design so that consumers have a good smoking experience. The tobacco segment of the present invention mainly includes tobacco raw materials, aerosol forming agents, spices and binders. Among them, the aerosol forming agent is selected from one or more of polyols, esters of polyols, fatty acid esters of monocarboxylic acids, fatty acid esters of dicarboxylic acids or fatty acid esters of polycarboxylic acids. In certain embodiments of the present invention, the aerosol forming agent is selected from one or more of propylene glycol, triethylene glycol, 1,3-butylene glycol, glycerol, glycerol monoacetate, glycerol diacetate, glycerol triacetate, dimethyl dodecanedioate or dimethyl tetradecanedioate. The spices of the present invention are selected from mint spices, fruity spices or spices with other taste characteristics. The binder of the present invention is selected from one or more of gum, cellulose binder, polysaccharide, organic acid and conjugate alkali salt of organic acid. Among them, the gum includes one or more of guar gum, xanthan gum, gum arabic and locust bean gum; the cellulose binder includes one or more of hydroxypropyl cellulose, carboxymethyl cellulose, hydroxyethyl cellulose, methyl cellulose and ethyl cellulose; the polysaccharide includes starch; the organic acid includes alginic acid; the conjugate alkali salt of the organic acid includes sodium alginate, agar and pectin.

[0016] The present invention discloses a heated cigarette. The heated cigarette provided by the present invention comprises: a filter segment and a tobacco segment, wherein the filter segment and the tobacco segment are formed by wrapping with wrapping paper; a non-porous breathable sealing film is provided at the outer end of the tobacco segment, and an edge of 1 / 3 to 1 / 2 of the circumference of the non-porous breathable sealing film is connected to the end of the wrapping paper; or, a perforated sealing film is provided at the outer end of the tobacco segment, and an edge of at least 1 / 3 of the circumference of the perforated sealing film is connected to the end of the wrapping paper. The present invention provides a sealing film at the outer end of the tobacco segment, and partially connects the sealing film to the wrapping paper at the outer end of the tobacco segment, which not only effectively prevents tobacco raw materials from remaining in the heating chamber of the heating device during extraction, but also does not change the original structure of the cigarette cartridge, is easy to process, and has low cigarette draw resistance, thereby achieving a better smoking experience. The experiment showed that by setting a sealing film that was only half connected to the wrapping paper at the outer end of the tobacco segment, the draw resistance was significantly reduced compared to cigarettes with the sealing film fully connected. A extraction experiment was conducted on 100 cigarettes, and the results showed that there was no tobacco residue. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the structure of the heated cigarette of the present invention;

[0018] Figure 2 A schematic diagram of the location of the sealing film of the heated cigarette of the present invention;

[0019] Figure 3 The figure is a schematic diagram of the shape of the sealing film of the present invention. DETAILED DESCRIPTION

[0020] The present invention discloses a heated cigarette. Those skilled in the art can refer to the content of this article and appropriately improve the process parameters to achieve it. It is particularly important to point out that all similar substitutions and modifications are obvious to those skilled in the art and are considered to be included in the present invention. The method and application of the present invention have been described through preferred embodiments, and relevant personnel can obviously modify or appropriately change and combine the method and application of this article without departing from the content, spirit and scope of the present invention to implement and apply the technology of the present invention.

[0021] The structure of the heated cigarette of the present invention is as follows Figure 1 As shown, Figure 1 This is a schematic diagram of the structure of the heated cigarette of the present invention, which is mainly composed of a filter segment, a middle segment, and a tobacco segment, wherein the filter segment, the middle segment, and the tobacco segment have the same outer diameter, and the three segments are wrapped and formed by wrapping paper.

[0022] The end surface of the wrapping paper of the heated cigarette close to the tobacco section of the present invention is connected to the end of the wrapping paper by a sealing film to prevent tobacco raw materials from remaining in the heating chamber during the extraction process of the cigarette. Figure 2 As shown, Figure 2This is a schematic diagram of the location of the sealing film of the heated cigarette according to the present invention.

[0023] The sealing film of the present invention is as follows Figure 3 As shown, Figure 3 is a schematic diagram of the shape of the sealing film of the present invention, Figure 3 A is a mesh-shaped sealing film, B is a fish-scale-shaped sealing film, and C is a non-porous breathable sealing film.

[0024] The present invention will be further described below in conjunction with embodiments:

[0025] Example 1

[0026] In this embodiment, the cigarette cartridge adopts a three-section type, namely the filter section, the middle section and the tobacco section. The diameter of the cigarette is 7.2mm, and the sealing film material is paper (porous breathable sealing film) with an air permeability of 40 CU. Gluing is applied only to 1 / 2 of the part where the wrapping paper is adhered to ensure that the wrapping paper and the sealing film do not separate. During the insertion of the cigarette into the device, the sealing film of the unadhered part is deformed toward the inside of the tobacco under the action of the heating element, so that an opening is formed at the end of the tobacco section, which is conducive to the entry of air and reduces the resistance to smoking of the cigarette; when the cigarette is taken out, the sealing film of the unadhered part is deformed toward the outside of the tobacco under the action of the heating element, so that a closed end of the tobacco section is formed, which can effectively prevent tobacco substances from remaining in the heating chamber. After testing, the resistance to smoking of the cigarette in this embodiment is 420 Pa, and the resistance to smoking is moderate. The extraction experiment was carried out on 100 cigarettes, and it was found that there was no tobacco residue. The sensory evaluation results are shown in Table 1, where each item is 20 points and the total score is 100 points.

[0027] Table 1

[0028]

[0029] Comparative Example 1

[0030] In this embodiment, the cigarette cartridge adopts a three-section type, namely the filter section, the middle section and the tobacco section. The diameter of the cigarette is 7.2mm, and the sealing film material is paper (porous breathable sealing film) with an air permeability of 40 CU. It is fully adhered to the wrapping paper to ensure that the wrapping paper and the sealing film are not separated. During the insertion of the cigarette into the device, because the sealing film is completely adhered, it does not deform into the tobacco under the action of the heating element, so that the end of the tobacco section is always in a closed state, which is not conducive to the entry of air, and the cigarette suction resistance increases; when the cigarette is taken out, because the end of the tobacco section is in a closed state, it can also effectively prevent tobacco substances from remaining in the heating chamber. After testing, the suction resistance of the cigarette in this embodiment is 580 Pa, which is relatively large. The extraction experiment was carried out on 100 cigarettes, and it was found that there was no tobacco residue. The sensory evaluation results are shown in Table 2.

[0031] Table 2

[0032]

[0033] Example 2

[0034] In this embodiment, the cigarette cartridge adopts a three-section type, namely the filter section, the middle section and the tobacco section. The diameter of the cigarette is 7.2mm, the sealing film material is paper (porous breathable sealing film), the air permeability is 80 CU, and only 1 / 2 of the part where it is adhered to the wrapping paper is glued to ensure that the wrapping paper and the sealing film do not separate. During the insertion of the cigarette into the device, the sealing film of the unadhered part is deformed toward the inside of the tobacco under the action of the heating element, so that an opening is formed at the end of the tobacco section, which is conducive to the entry of air and reduces the resistance to smoking of the cigarette; when the cigarette is taken out, the sealing film of the unadhered part is deformed toward the outside of the tobacco under the action of the heating element, so that a closed end of the tobacco section is formed, which can effectively prevent tobacco substances from remaining in the heating chamber. After testing, the resistance to smoking of the cigarette in this embodiment is 350 Pa, and the resistance to smoking is moderate. The extraction experiment was carried out on 100 cigarettes, and it was found that there was no tobacco residue. The sensory evaluation results are shown in Table 3.

[0035] Table 3

[0036]

[0037] Example 3

[0038] In this embodiment, the cigarette cartridge adopts a three-section type, namely, a filter section, a middle section and a tobacco section. The diameter of the cigarette is 7.2 mm. The sealing film material is a high molecular polymer material and has a mesh structure. Figure 3 As shown in A.

[0039] The sealing film and the wrapping paper are physically sealed, mainly by piercing the wrapping paper with the needle-like part at the end of the circumferential edge of the sealing film to fix it, ensuring that the wrapping paper and the sealing film do not separate. During the suction process, air can smoothly enter the interior of the cigarette through the mesh of the sealing film, which can reduce the suction resistance of the cigarette. During the process of taking out the cigarette, the mesh structure of the sealing film can effectively prevent tobacco from remaining in the heating chamber. After testing, the suction resistance of the cigarette in this embodiment is 310 Pa, and the suction resistance is moderate. The extraction experiment was carried out on 100 cigarettes, and it was found that there was no tobacco residue. The sensory evaluation results are shown in Table 4.

[0040] Table 4

[0041]

[0042] Comparative Example 2

[0043] In this embodiment, the cigarette cartridge adopts a three-section type, namely the filter section, the middle section and the tobacco section. The diameter of the cigarette is 7.2 mm, and no sealing film is used. After testing, the suction resistance of the cigarette in this embodiment is 300 Pa, and the suction resistance is moderate. The extraction experiment was carried out on 100 cigarettes, and it was found that 58 sample tobaccos remained in the heating chamber. The sensory evaluation results are shown in Table 5.

[0044] Table 5

[0045]

[0046] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A heated cigarette, characterized in that: include: A filter segment and a tobacco segment, wherein the filter segment and the tobacco segment are formed by wrapping with wrapping paper; The outer end of the tobacco segment is provided with a non-porous breathable sealing film, and the edge of 1 / 3 to 1 / 2 of the circumference of the non-porous breathable sealing film is connected to the end of the wrapping paper; or, The outer end of the tobacco segment is provided with a sealing film with holes, and at least 1 / 3 of the perimeter of the edge of the sealing film with holes is connected to the end of the wrapping paper.

2. The heated cigarette according to claim 1, characterized in that: The air permeability of the non-porous breathable sealing film is less than 100 CU.

3. The heated cigarette according to claim 1, characterized in that: The non-porous breathable sealing film is selected from paper, tow or high molecular polymer; The material of the perforated sealing film is selected from paper, tow or high molecular polymer.

4. The heated cigarette according to claim 1, characterized in that: The non-porous breathable sealing film is connected to the end of the wrapping paper by adhesion, electrostatic adsorption or physical sealing; The perforated sealing film is connected to the end of the wrapping paper by adhesion, electrostatic adsorption or physical sealing.

5. The heated cigarette according to claim 4, characterized in that: The edge of the non-porous breathable sealing film is provided with a needle-like structure, and the non-porous breathable sealing film is punctured and connected with the end of the wrapping paper through the needle-like structure; The edge of the perforated sealing film is provided with a needle-like structure, and the edge of the perforated sealing film is punctured and connected with the end of the wrapping paper through the needle-like structure.

6. The heated cigarette according to claim 1, characterized in that: The filter segment is made of acetate fiber tow material; The wrapping paper has a gram weight greater than 40 g / cm 2 of paper material.

7. The heated cigarette according to claim 1, characterized in that: The length of the filter segment is 5 mm to 10 mm.

8. The heated cigarette according to claim 1, characterized in that: The filter segment and the tobacco segment also include an intermediate segment; The middle section has a cavity, and the ratio of the weight of the middle section to the volume of the cavity of the middle section is less than 1 mg / m 3 .

9. The heated cigarette according to claim 8, characterized in that: The length of the middle section is 15 mm to 30 mm.

10. The heated cigarette according to claim 8, characterized in that: The material of the middle section is paper, silk bundle, ceramic material or polymer material.

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