Disposable double-channel cigarette and preparation method thereof

Abstract

A disposable double-channel cigarette includes a tobacco unit, a heat source unit and a filter unit; wherein the tobacco unit includes a tobacco unit channel, a suction end and an ignition end; the heat source unit includes a heat source unit channel; and the filter unit includes a filter unit channel, and the filter unit is arranged at the suction end of the tobacco unit. A pneumatic device and a tobacco component are arranged in the tobacco unit channel; an air extraction device and a fuel component are arranged in the heat source unit channel; a linkage device is arranged between the pneumatic device and the air extraction device, and the linkage device transfers power between the pneumatic device and the air extraction device. A method for preparing the disposable double-channel cigarette described above is further provided.

Claims

1. A disposable double-channel cigarette, comprising: a tobacco unit, wherein the tobacco unit comprises a tobacco unit channel, a suction end and an ignition end; and a heat source unit, wherein the heat source unit comprises a heat source unit channel; wherein, an axis of the tobacco unit channel and an axis of the heat source unit channel are arranged in parallel, and an air-tight heat conduction layer is arranged at a contact portion between the tobacco unit channel and the heat source unit channel, extends an entire length of the heat source unit channel, and prevents fluid flow between the tobacco unit channel and the heat source unit channel; a pneumatic device and a tobacco component are arranged in the tobacco unit channel; an air extraction device and a fuel component are arranged in the heat source unit channel; a linkage device is arranged between the pneumatic device and the air extraction device, and the linkage device transfers power between the pneumatic device and the air extraction device.

2. The disposable double-channel cigarette of claim 1, wherein, the tobacco unit is at least partially inserted into the heat source unit, or the heat source unit is at least partially inserted into the tobacco unit, or the tobacco unit and the heat source unit are juxtaposed and at least partially in contact with each other; wherein, a quantity of the tobacco unit is at least one, and a quantity of the heat source unit is at least one.

3. The disposable double-channel cigarette of claim 2, wherein, the ignition end of the tobacco unit is provided with a detachable permeable flame retardant element.

4. The disposable double-channel cigarette of claim 2, wherein, the pneumatic device is a first fan or a first turbine, and the air extraction device is a second fan or a second turbine; wherein, the pneumatic device and the air extraction device are arranged independently of each other.

5. The disposable double-channel cigarette of claim 2, wherein, the linkage device is a magnetic linkage device or a mechanical linkage device.

6. The disposable double-channel cigarette of claim 2, wherein, the pneumatic device and the air extraction device are arranged at the suction end of the tobacco unit.

7. The disposable double-channel cigarette of claim 2, wherein, the heat source unit channel is provided with a burnt waste gas outlet downstream of the air extraction device.

8. The disposable double-channel cigarette of claim 2, further comprising a filter unit, wherein the filter unit comprises a filter unit channel, and the filter unit comprising the filter unit channel is arranged at the suction end of the tobacco unit.

9. The disposable double-channel cigarette of claim 1, wherein, the ignition end of the tobacco unit is provided with a detachable permeable flame retardant element.

10. The disposable double-channel cigarette of claim 9, wherein the detachable permeable flame retardant element is a granular substance or a porous substance.

11. The disposable double-channel cigarette of claim 9, wherein the detachable permeable flame retardant element is an extruded clay particle.

12. The disposable double-channel cigarette of claim 1, wherein, the pneumatic device is a first fan or a first turbine, and the air extraction device is a second fan or a second turbine; wherein, the pneumatic device and the air extraction device are arranged independently of each other.

13. The disposable double-channel cigarette of claim 1, wherein, the linkage device is a magnetic linkage device or a mechanical linkage device.

14. The disposable double-channel cigarette of claim 13, wherein two parts of the linkage device are a first linkage device and a second linkage device, wherein the first linkage device is located in the tobacco unit channel and the second linkage device is located in the heat source unit channel; the first linkage device is arranged on the pneumatic device in the tobacco unit channel; and the second linkage device is arranged on the air extraction device in the heat source unit channel.

15. The disposable double-channel cigarette of claim 1, wherein, the pneumatic device and the air extraction device are arranged at the suction end of the tobacco unit.

16. The disposable double-channel cigarette of claim 1, wherein, the heat source unit channel is provided with a burnt waste gas outlet downstream of the air extraction device.

17. The disposable double-channel cigarette of claim 1, further comprising a filter unit, wherein the filter unit comprises a filter unit channel, and the filter unit comprising the filter unit channel is arranged at the suction end of the tobacco unit.

18. A method for preparing the disposable double-channel cigarette of claim 1, comprising the following steps: step A, preparing the tobacco unit, wherein the tobacco unit comprises the tobacco unit channel, the pneumatic device and the tobacco component; step B, preparing the heat source unit, wherein the heat source unit comprises the heat source unit channel, the air extraction device and the fuel component; and step C, assembling the tobacco unit prepared in step A with the heat source unit prepared in step B to obtain the disposable double-channel cigarette; wherein the pneumatic device and the air extraction device are connected by the linkage device in a power transfer manner; the axis of the tobacco unit channel and the axis of the heat source unit channel are arranged in parallel, and the air-tight heat conduction layer is arranged at the contact portion between the tobacco unit channel and the heat source unit channel, extends the entire length of the heat source unit channel, and prevents the fluid flow between the tobacco unit channel and the heat source unit channel, and the linkage device is prepared during, before or after a preparation of the tobacco unit and the heat source unit.

19. The method of claim 18, further comprising the following step: step D, preparing a filter unit, wherein the filter unit comprises a filter unit channel, the filter unit is arranged at the suction end of the tobacco unit, and step C is performed before or after step D.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

(1) FIG. 1 is a schematic diagram showing the working principle of the cigarette of the present invention in the heat-not-burn mode.

(2) FIG. 2 is a schematic diagram showing the working principle of the cigarette of the present invention in the traditional burning mode.

(3) FIG. 3 is a three-dimensional diagram showing the overall look of the cigarette according to embodiment 1 of the present invention.

(4) FIG. 4 is a three-dimensional cross-sectional view of the cigarette in the heat-not-burn mode according to embodiment 1 of the present invention.

(5) FIG. 5 is a three-dimensional cross-sectional view of the cigarette in the traditional burning mode according to embodiment 1 of the present invention.

(6) FIG. 6 is a three-dimensional cross-sectional view showing the assembly of the pneumatic device and the linkage device of the cigarette according to embodiment 1 of the present invention.

(7) FIG. 7 is a cross-sectional view of the cigarette according to embodiment 1 of the present invention, wherein A represents the heat-not-burn mode, and B represents the traditional burning mode.

(8) FIG. 8 is a three-dimensional diagram showing the overall look of the cigarette according to embodiment 2 of the present invention.

(9) FIG. 9 is a three-dimensional cross-sectional view of the cigarette in the heat-not-burn mode according to embodiment 2 of the present invention.

(10) FIG. 10 is a three-dimensional cross-sectional view of the cigarette in the traditional burning mode according to embodiment 2 of the present invention.

(11) FIG. 11 is a cross-sectional view of the cigarette according to embodiment 2 of the present invention, wherein A represents the heat-not-burn mode, and B represents the traditional burning mode.

(12) FIG. 12 is a three-dimensional diagram showing the overall look of the cigarette according to embodiment 3 of the present invention.

(13) FIG. 13 is a three-dimensional cross-sectional view of the cigarette in the heat-not-burn mode according to embodiment 3 of the present invention.

(14) FIG. 14 is three-dimensional cross-sectional view of the cigarette in the traditional burning mode according to embodiment 3 of the present invention.

(15) FIG. 15 is a three-dimensional cross-sectional view showing the assembly of the pneumatic device and the linkage device of the cigarette according to embodiment 3 of the present invention.

(16) FIG. 16 is a cross-sectional view of the cigarette according to embodiment 3 of the present invention, wherein A represents the heat-not-burn mode, and B represents the traditional burning mode.

(17) FIGS. 17-19 are the peak value change curves of the heat of the cigarettes in embodiments 1-3 of the present invention during the suction process, wherein the heat is expressed as temperature in unit of ° C.

(18) FIGS. 20-23 are the peak value change curves of the heat of the cigarettes in control groups 1-4 during the suction process, wherein the heat is expressed as temperature in unit of ° C.

(19) FIG. 24A is a schematic diagram showing the cross section of the cigarette including a plurality of tobacco units according to the present invention; and FIG. 24B is a schematic diagram showing the cross section of the cigarette including a plurality of heat source units according to the present invention.

(20) In the figures: 1, tobacco unit channel; 2, heat source unit channel; 3, pneumatic device; 4, air extraction device; 5, first linkage device; 6, second linkage device; 7, filter unit channel; 8, tobacco component; 9, flame retardant element; 10, wrapping material layer; 11, fuel component; 12, capsule; 13, filter material; 14, burnt waste gas outlet; 15, spice line; 16, air-tight heat conduction layer.

DETAILED DESCRIPTION OF THE EMBODIMENTS

(21) The present invention is further described below through specific embodiments.

Embodiment 1

(22) 1. Preparation of Tobacco Unit

(23) The aluminum foil, as the air-tight heat conduction layer 16, is made into a tubular element to be used as a tobacco unit member. One end of the tobacco unit member is the ignition end, and the other end of the tobacco unit member is the suction end. The cut tobaccos prepared by ethylene glycol, glycerin, cocoa, honey and jujube tincture are used as the tobacco component 8 to be filled in the middle portion of the tobacco unit member. The granular and well-ventilated clay particles are used as the flame retardant element 9 to be filled to the ignition end of the tobacco unit member. A fan as the pneumatic device 3 is arranged on the tobacco unit member close to the suction end, and the magnet as the first linkage device 5 is arranged on the pneumatic device 3. Thus, the tobacco unit is completely prepared and ready for use.

(24) 2. Preparation of Heat Source Unit

(25) The paper, as the wrapping material layer 10, is made into a tubular element with a larger inner diameter than the above tobacco unit member to be used as a heat source unit member. The activated carbon particles and clay particles are proportionally mixed and used as the fuel component 11. The fuel component 11 is filled in the inner wall of the heat source unit member and is arranged close to the ignition end of the tobacco unit member. A fan as the air extraction device 4 is arranged on the heat source unit member close to the suction end of the tobacco unit member, and the magnet as the second linkage device 6 is arranged on the air extraction device 4. Thus, the heat source unit is completely prepared and ready for use.

(26) 3. Preparation of Filter Unit

(27) The loosened cellulose acetate with the plasticizer is used as the filter material 13 and is made into a cylinder. The wrinkled polyethylene (PE) sheet material as the filter material 13 is made into another cylinder. A plurality of filter unit channels 7 are arranged in each cylinder, the two cylinders are connected in series, and the paper as the wrapping material layer 10 wraps the two cylinders. Thus, the filter unit is completely prepared and ready for use.

(28) 4. Assembly

(29) The tobacco unit is inserted into the heat source unit along the central axis of the heat source unit, and the burnt waste gas outlet 14 on the heat source unit is formed between the tobacco unit and the heat source unit. At this time, the tobacco unit is parallel to the heat source unit, and the interaction force caused by the magnetic force between the pneumatic device 3 and the air extraction device 4 reaches the maximum. Then, the filter unit is arranged on the tobacco unit close to the suction end of the tobacco unit member to obtain a complete cigarette. The complete cigarette is suitable for the heat-not-burn mode, while the cigarette without the flame retardant element 9 is suitable for the burning mode.

Embodiment 2

(30) 1. Preparation of Tobacco Unit

(31) The tobacco unit of the present embodiment is different from that of embodiment 1 in that the paper as the wrapping material layer 10 is made into a tubular element with a relatively large inner diameter, and the linkage device is not prepared for the time being.

(32) 2. Preparation of Heat Source Unit

(33) The heat source unit of the present embodiment is different from that of embodiment 1 in that the aluminum foil as the air-tight heat conduction layer 16 is made into a tubular element with a relatively small inner diameter, and a continuous carbon rod with desired structure is extruded as the fuel component 11.

(34) 3. Preparation of Filter Unit

(35) The loosened polypropylene fiber with the plasticizer is used as the filter material 13 and is made into two cylinders, and the two cylinders are provided with a plurality of filter unit channels 7, wherein the middle portion of one of the two cylinders is inlaid with the capsule 12. The content in the capsule 12 may be water, fat-soluble spice, or alcohol-soluble spice, so that when the capsule 12 is cracked, the content is released into the filter unit, thereby enriching the smell of the smoke, increasing the moisture content of the smoke and reducing the temperature of the smoke. The paper as the wrapping material layer 10 wraps the two cylinders. Thus, the filter unit channels 7 are completely prepared and ready for use.

(36) 4. Assembly

(37) A long rod is selected as the linkage device to coaxially connect the pneumatic device 3 and the air extraction device 4. The two parts of the long rod respectively located in the tobacco unit channel 1 and the heat source unit channel 2 are named as the first linkage device 5 and the second linkage device 6, respectively. The filter unit is connected and arranged on the tobacco unit close to the suction end, and then the prepared heat source unit is inserted into the tobacco unit along the central axis of the tobacco unit, wherein the burnt waste gas outlet 14 is reserved on the heat source unit. At this time, the tobacco unit is parallel to the heat source unit, and the pneumatic device 3 and the air extraction device 4 are connected through the long rod to obtain a complete cigarette. The complete cigarette is suitable for the heat-not-burn mode, while the cigarette without the flame retardant element 9 is suitable for the burning mode.

Embodiment 3

(38) 1. Preparation of Tobacco Unit

(39) The tobacco unit of the present embodiment is different from that of embodiment 1 in that the aluminum foil as the wrapping material layer 10 is made into a tubular element with a semicircular cross section.

(40) 2. Preparation of Heat Source Unit

(41) The heat source unit of the present embodiment is different from that of embodiment 1 in that the aluminum foil as the air-tight heat conduction layer 16 is made into a tubular element with a semicircular cross section, and a strip-shaped solid alcohol with a hollow cross section is selected as the fuel component 11.

(42) 3. Preparation of Filter Unit

(43) The loosened polypropylene fiber with the plasticizer is used as the filter material 13 and is made into two cylinders, and the two cylinders are provided with a plurality of filter unit channels 7, wherein the central axis of one of the two cylinders is inlaid with the spice line 15. The spice line 15 is provided with the citrus extract to enrich the smell of the smoke and reduce the temperature of the smoke. The paper as the wrapping material layer 10 wraps the two cylinders. Thus, the filter unit is completely prepared and ready for use.

(44) 4. Assembly

(45) A belt is selected as the linkage device to connect the pneumatic device 3 and the air extraction device 4. The two parts of the belt respectively located in the tobacco unit channel 1 and the heat source unit channel 2 are named as the first linkage device 5 and the second linkage device 6, respectively. The heat source unit with the semicircular cross section and the tobacco unit with the semicircular cross section are assembled side by side along the axis of the cylinders of the filter unit to form a cylinder, wherein the burnt waste gas outlet 14 is reserved on the heat source unit. At this time, the tobacco unit is parallel to the heat source unit, and then the filter unit is arranged on the tobacco unit close to the suction end to obtain a complete cigarette. The complete cigarette is suitable for the heat-not-burn mode, while the cigarette without the flame retardant element 9 is suitable for the burning mode.

Embodiment 4

(46) Application: Flexible Consumption Pattern Comparison Experiment

(47) (1) The disposable double-channel cigarettes prepared in embodiments 1, 2 and 3 are adopted as the experimental groups.

(48) (2) The traditional cigarette consumed in the burning mode is adopted as the control group 1.

(49) (3) The electronic cigarette (i.e., IQOS of Philip Morris International) consumed in the heat-not-burn mode is adopted as the control group 2.

(50) (4) The tandem-type HNB cigarette (i.e. Revo of the R. J. Reynolds Tobacco Company) consumed in the carbon-heat-not-burn mode is adopted as the control group 3.

(51) The samples of the above embodiments and the samples of the control groups are used in the flexible consumption pattern comparison experiment, and the results are shown in Table 1 below.

(52) TABLE-US-00001 TABLE 1 Results of the flexible consumption pattern comparison experiment Whether to meet the Whether to meet the consumption demand consumption demand Sampling under the traditional under the heat-not- groups burning mode burn mode Embodiment 1 Yes Yes Embodiment 2 Yes Yes Embodiment 3 Yes Yes Control group 1 Yes No Control group 2 No Yes Control group 3 No Yes

(53) Conclusion: because the cigarettes in control group 1, control group 2 and control group 3 can only adapt to or meet the consumption demand under a single mode, the consumption cost thereof will rise greatly and the market competitiveness thereof will be weak under the background of diversified demand. These cigarettes are very likely to be replaced by products using new technologies. The cigarette of the present invention can flexibly adapt to and meet the consumption demands of different patterns, which has a broad application prospect.

Embodiment 5

(54) Application: Smoke Index Detection Comparison Experiment

(55) (1) The disposable double-channel cigarettes prepared in embodiments 1, 2 and 3 are adopted as the experimental groups.

(56) (2) The traditional cigarette consumed in the burning mode is adopted as the control group 1.

(57) (3) The electronic cigarette (i.e., IQOS of Philip Morris International) consumed in the heat-not-burn mode is adopted as the control group 2.

(58) (4) The tandem-type HNB cigarette (i.e. Revo of the R. J. Reynolds Tobacco Company) consumed in the carbon-heat-not-burn mode is adopted as the control group 3.

(59) The samples of the above embodiments and the samples of the control groups are used in the smoke index detection comparison experiment, and the results are shown in Table 2 below.

(60) TABLE-US-00002 TABLE 2 Results of the smoke index detection comparison experiment (unit: mg) Smoke index under the Smoke index under the traditional burning mode heat-not-burn mode Smoking Smoking Sampling groups Tar nicotine CO Tar nicotine CO Embodiment 1 8.3 0.81 7.5 0.79 0.06 0 Embodiment 2 8.1 0.79 8.0 0.76 0.08 0 Embodiment 3 8.6 0.88 8.5 0.81 0.07 0 Control group 1 9.5 1.1  12.0  — — — Control group 2 — — — 0.77 0.07 0 Control group 3 — — — 0.9  0.1   10.9

(61) Conclusion: under the traditional burning mode, the results of the smoke index detection of the cigarettes in embodiment 1, embodiment 2 and embodiment 3 are close to those of the control group 1, and all indexes thereof are slightly less than those of the control group 1. Under the heat-not-burn mode, the results of the smoke index detection of the cigarettes in embodiment 1, embodiment 2 and embodiment 3 are overall close to those of the control group 2; and the harmful indexes of the cigarettes in embodiment 1, embodiment 2 and embodiment 3 are significantly lower than those of control group 3, especially the index of the harmful substance carbon monoxide (CO) is much lower than that of the control group 3. Therefore, the content of the nicotine in the smoke of the cigarette of the present invention is basically unchanged, but the content of harmful gases is reduced, which has a broad application prospect.

Embodiment 6

(62) Application: Sensory Evaluation Comparison Experiment

(63) (1) The disposable double-channel cigarettes prepared in embodiments 1, 2 and 3 are adopted as the experimental groups.

(64) (2) The traditional cigarette consumed in the burning mode is adopted as the control group 1.

(65) (3) The electronic cigarette (i.e., IQOS of Philip Morris International) consumed in the heat-not-burn mode is adopted as the control group 2.

(66) (4) The tandem-type HNB cigarette (i.e. Revo of the R. J. Reynolds Tobacco Company) consumed in the carbon-heat-not-burn mode is adopted as the control group 3.

(67) The samples of the above embodiments and the samples of the control groups are used in the sensory evaluation comparison experiment, and the results are shown in Table 3 below.

(68) TABLE-US-00003 TABLE 3 Results of the sensory evaluation comparison experiment Sensory evaluation under the Sensory evaluation under the traditional burning mode heat-not-burn mode Sampling Sensory evaluation Sensory evaluation Sensory evaluation Sensory evaluation groups score description score description Embodiment 1 92 The aroma has good quality, is 95 The aroma has good quality, is exquisite, sufficient, and exquisite, sufficient, and harmonious, has no obvious harmonious, has no obvious miscellaneous gas; miscellaneous gas; the stimulus is relatively little; the stimulus is little; the aftertaste is clean. the aftertaste is clean and comfortable. Embodiment 2 91 The aroma has good quality, is 96 The aroma has good quality, is exquisite, sufficient, and exquisite, sufficient, and harmonious, has no obvious harmonious, has no obvious miscellaneous gas; miscellaneous gas; the stimulus is relatively little; the stimulus is little; the aftertaste is clean. the aftertaste is clean and comfortable. Embodiment 3 92 The aroma has good quality, is 95 The aroma has good quality, is exquisite, sufficient, and exquisite, sufficient, and harmonious, has no obvious harmonious, has no obvious miscellaneous gas; miscellaneous gas; the stimulus is relatively little; the stimulus is little; the aftertaste is clean. the aftertaste is clean and comfortable. Control group 1 90 The aroma is exquisite, — — sufficient, and harmonious, has no obvious miscellaneous gas; the stimulus is moderate; the aftertaste is clean. Control group 2 — — 94 The aroma has good quality, is exquisite, sufficient, and harmonious, has no obvious miscellaneous gas; the stimulus is little; the aftertaste is clean. Control group 3 — — 93 The aroma has good quality, is exquisite, sufficient, and harmonious, has no obvious miscellaneous gas; the stimulus is little; the aftertaste is clean. Conclusion: on the basis of flexibly meeting different consumption demands for different modes, the cigarettes in embodiment 1, embodiment 2 and embodiment 3 have less stimulus that that in the control group 1, and have more comfortable aftertaste than those in control group 2 and control group 3. Therefore, the sensory quality of the cigarette of the present invention is obviously improved and has a broad application prospect.

Embodiment 7

(69) Application: Puff-by-Puff Suction Mode Experiment

(70) (1) The disposable double-channel cigarettes prepared in embodiments 1, 2 and 3 are adopted as the experimental groups 1-3.

(71) (2) The traditional cigarette consumed in the burning mode is adopted as the control group 1.

(72) (3) The electronic cigarette (i.e., IQOS of Philip Morris International) consumed in the heat-not-burn mode is adopted as the control group 2.

(73) (4) The tandem-type HNB cigarette (i.e. Revo of the R. J. Reynolds Tobacco Company) consumed in the carbon-heat-not-burn mode is adopted as the control group 3.

(74) (5) Using the method disclosed by the Chinese Patent No. 102018000982289 “heat-not-burn tobacco suction device based on mechanical energy storage exhaust assembly”, the suction device is made and filled with the cut tobacco, which is used as the control group 4.

(75) During the suction process, the temperatures of tobacco in the samples of the above embodiments and control groups in different time periods are detected and recorded to characterize and compare the change in the peak value of heat. The results are shown in FIGS. 17-23.

(76) Conclusion: from FIGS. 17-23, it can be concluded that the cigarettes in embodiment 1, embodiment 2 and embodiment 3 of the present invention can be adapted to the puff-by-puff suction mode, which increases the temperature of tobacco and leads to better consumption experience, and the effects are similar to those of control group 1, control group 2 and control group 3. The cigarette in control group 4 continues to raise the temperature of the tobacco in an uncontrolled way and accordingly causes the great waste of fuel material, at the same time, it cannot be adapted to the puff-by-puff suction mode, causing a poor consumption experience and a bleak application prospect.

(77) The above is only specific embodiments of the present invention, but the protection scope of the present invention is not limited to these specific embodiments. Any change or replacement made by those skilled in the art within the technical scope of the present invention shall fall within the scope of protection of the present invention. Therefore, the scope of protection of the present invention shall be based on the scope of protection of the claims.