A solid for a heat-not-burn cigarette and a method of manufacturing the same

Abstract

The application discloses a kind of solid for heating not combustible cigarette and preparation method thereof, belong to heating not combustible cigarette technical field.The solid for heating not combustible cigarette is cylindrical, the inside of cylindrical solid has cavity, the both ends of cylindrical solid are equipped with first closed end and second closed end, first smoke flow guide hole and second smoke flow guide hole are respectively equipped in first closed end and second closed end, and the projection of first smoke flow guide hole and second smoke flow guide hole on the plane parallel to the arbitrary cross section of cylindrical solid does not completely coincide.The solid for heating not combustible cigarette can effectively reduce smoke temperature, intercept part of tar in smoke, simultaneously play the role of flavoring and flavoring, effectively improve the smoking quality of heating not combustible cigarette.

Description

Technical Field

[0001] This invention relates to the field of heated tobacco products, and more specifically, to a firmware for heated tobacco products and its preparation method. Background Technology

[0002] Heated tobacco products, also known as low-temperature cigarettes, are a new type of harm-reducing tobacco product. They combine a smoking device and a cartridge, and are designed based on the concept of "heating without burning." A special heating device (smoking device) heats treated tobacco (a special cartridge) to a specific temperature, just enough to release smoke for the user to inhale.

[0003] The heating temperature of heated cigarettes is usually between 250-350℃. Compared with the length of traditional cigarettes, which is about 84mm, heated cigarettes are usually only about 45mm long due to their structural design. The shorter cigarette length design results in a high smoking temperature for heated cigarettes. How to effectively reduce the smoke temperature has become a research focus for heated cigarettes in recent years.

[0004] In view of this, the present invention is proposed. Summary of the Invention

[0005] One of the objectives of this invention is to provide a fastener for heated tobacco products that can effectively reduce the temperature of the smoke, trap some of the tar in the smoke, and at the same time enhance the aroma and flavor, thereby effectively improving the smoking quality of heated tobacco products.

[0006] The second objective of this invention is to provide a method for preparing the above-mentioned fastener for heated non-combustible cigarettes.

[0007] This application can be implemented as follows:

[0008] In a first aspect, this application provides a fastener for heated non-combustible cigarettes, which is cylindrical and has a cavity inside.

[0009] The cylindrical fastener has a first closed end and a second closed end at both ends. The first closed end and the second closed end are respectively provided with a first flue gas guide hole and a second flue gas guide hole. The projections of the first flue gas guide hole and the second flue gas guide hole on a plane parallel to any cross-section of the cylindrical fastener do not completely coincide.

[0010] In an optional embodiment, the fitting for heated tobacco products includes an inner tube and an outer tube;

[0011] The inner cylinder has a first open end and a first closed end at its two ends, and the inner cylinder has a first cavity inside; the outer cylinder has a second open end and a second closed end at its two ends, and the outer cylinder has a second cavity inside.

[0012] The inner cylinder is used to be embedded in the second cavity, and the first open end of the inner cylinder is used to face the second closed end of the outer cylinder.

[0013] In an optional embodiment, there are multiple first flue gas guide holes, which are arranged in a ring.

[0014] In an optional embodiment, a plurality of first flue gas guide holes are arranged in a ring array with the central axis of the inner cylinder as the center.

[0015] In an optional implementation, the number of first flue gas guide holes is 3-10.

[0016] In an optional embodiment, the diameter of the first flue gas guide hole is 0.3-0.8 mm.

[0017] In an optional embodiment, there are multiple second flue gas guide holes, which are arranged in a ring.

[0018] In an optional embodiment, a plurality of second flue gas guide holes are arranged in a ring array around the central axis of the outer cylinder.

[0019] In an optional implementation, the number of second flue gas guide holes is 3-10.

[0020] In an optional embodiment, the diameter of the second flue gas guide hole is 0.3-0.8 mm.

[0021] In an optional embodiment, the second closed end has an embedded stepped structure, and the end face of the first open end of the inner cylinder contacts the embedded step of the second closed end.

[0022] In an optional implementation, the first closed end is a smooth surface.

[0023] In an optional embodiment, the outer diameter of the outer cylinder is 5-8 mm.

[0024] In an optional embodiment, the first cavity of the inner cylinder is filled with solid slow-release particles with a particle size of 1-3 mm.

[0025] In an optional embodiment, the solid sustained-release particles are granular solid fragrance or fragrance-carrying particles.

[0026] Secondly, this application provides a method for preparing a heat-not-burning cigarette fastener as described in any of the foregoing embodiments, wherein the raw materials for preparing the heat-not-burning cigarette fastener are prepared by injection molding or extrusion molding.

[0027] In an optional embodiment, the raw material used for preparation is a biodegradable material;

[0028] In optional embodiments, the biodegradable material includes polylactic acid, polybutylene succinate, or polyhydroxyalkanoate.

[0029] In an optional embodiment, the method for preparing the fastener for heated non-combustible cigarettes includes: preparing an inner cylinder by injection molding or extrusion molding; preparing an outer cylinder by injection molding or extrusion molding; and placing the outer cylinder over the outer side of the inner cylinder at the second open end relative to the first open end of the inner cylinder.

[0030] In an optional embodiment, the method further includes filling the first cavity of the inner cylinder with solid slow-release particles.

[0031] The beneficial effects of this application include:

[0032] This application provides a first flue gas guide hole and a second flue gas guide hole at the first closed end and the second closed end, respectively, and the projections of the first flue gas guide hole and the second flue gas guide hole on a plane parallel to any cross-section of the cylindrical fastener do not completely coincide.

[0033] By setting the first and second smoke guide holes as described above, the guide holes at both ends of the heat-not-burn cigarette holder are not on the same flow channel. This facilitates the condensation of harmful substances such as tar on the inner wall of the first cavity in the heat-not-burn cigarette holder, trapping some of the tar in the smoke and reducing the harm of smoking to the human body. Furthermore, when filling with solid slow-release particles, the contact time between the smoke and the slow-release particles can be prolonged, allowing the smoke to effectively carry out the aroma substances or smoke-generating agents in the solid slow-release particles, thus giving the cigarette a better smoking quality.

[0034] In addition, the aforementioned first and second smoke guide holes can effectively reduce the smoke temperature and enhance the aroma, thereby improving the smoking quality of heated non-combustible cigarettes. Attached Figure Description

[0035] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0036] Figure 1 This is a schematic diagram of the inner cylinder in the fastener for heated non-combustible cigarettes of this application from a first-view perspective.

[0037] Figure 2 This is a structural schematic diagram of the inner cylinder in the fastener for heated non-combustible cigarettes of this application from a second perspective.

[0038] Figure 3This is a schematic diagram of the outer cylinder in the fastener for heated non-combustible cigarettes of this application from a first-view perspective.

[0039] Figure 4 This is a structural schematic diagram of the outer cylinder in the fastener for heated non-combustible cigarettes of this application from a second perspective.

[0040] Figure 5 This is a schematic diagram of the inner and outer cylinders of the firmware for heated non-combustible cigarettes in this application, viewed from a first perspective.

[0041] Figure 6 This is a schematic diagram of the inner and outer cylinders of the firmware for heated non-combustible cigarettes in this application, viewed from a second perspective.

[0042] Icons: 1-Inner cylinder; 11-First open end; 12-First closed end; 13-First cavity; 14-First flue gas guide hole; 2-Outer cylinder; 21-Second open end; 22-Second closed end; 221-Embedded stepped structure; 23-Second cavity; 24-Second flue gas guide hole. Detailed Implementation

[0043] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below. Where specific conditions are not specified in the embodiments, conventional conditions or conditions recommended by the manufacturer shall apply. Reagents or instruments whose manufacturers are not specified are all conventional products that can be purchased commercially.

[0044] The following is a detailed description of the firmware for heated non-combustible cigarettes and its preparation method provided in this application.

[0045] Please refer to the above as well. Figures 1 to 6 This application proposes a fitting for heated tobacco products, which is cylindrical and hereinafter referred to as a "cylindrical fitting". The cylindrical fitting has an internal cavity. The two ends of the cylindrical fitting are provided with a first closed end 12 and a second closed end 22. The first closed end 12 and the second closed end 22 are respectively provided with a first smoke guide hole 14 and a second smoke guide hole 24, and the projections of the first smoke guide hole 14 and the second smoke guide hole 24 on a plane parallel to any cross-section of the cylindrical fitting do not completely coincide.

[0046] The aforementioned "projection not completely overlapping" refers to partial overlap or no overlap at all.

[0047] In some specific embodiments, the fastener for heated non-combustible cigarettes includes an inner cylinder 1 and an outer cylinder 2;

[0048] The inner cylinder 1 has a first open end 11 and a first closed end 12 at its two ends, and the inner cylinder 1 has a first cavity 13 inside; the outer cylinder 2 has a second open end 21 and a second closed end 22 at its two ends, and the outer cylinder 2 has a second cavity 23 inside. It can also be understood that both the inner cylinder 1 and the outer cylinder 2 have a cap-shaped structure, and the cap end is the closed end.

[0049] The inner cylinder 1 is used to be embedded in the second cavity 23 and the first open end 11 of the inner cylinder 1 is used to face the second closed end 22 of the outer cylinder 2. The first cavity 13 of the inner cylinder 1 is a single cavity that the entire heating non-combustible cigarette fastener has in the use state, and is used to fill solid slow-release particles (not shown).

[0050] For reference, the outer diameter of the inner cylinder 1 is equal to or slightly smaller than the inner diameter of the outer cylinder 2.

[0051] It should be noted that the inner cylinder 1 and the outer cylinder 2 have their own frictional force, and the two can cooperate through friction to ensure that the inner cylinder 1 does not fall out of the second cavity 23 of the outer cylinder 2.

[0052] In other words, the heating non-combustible cigarette fastener provided in this application consists of a two-section sleeve cylinder (inner cylinder 1 and outer cylinder 2), and the inner cylinder 1 and outer cylinder 2 are combined to form a complete heating non-combustible cigarette fastener.

[0053] In this application, the first closed end 12 and the second closed end 22 are respectively provided with a first flue gas guide hole 14 and a second flue gas guide hole 24, and the projections of the first flue gas guide hole 14 and the second flue gas guide hole 24 on a plane parallel to any cross section of the inner cylinder 1 do not completely coincide.

[0054] For reference, there are multiple first flue gas guide holes 14 arranged in a ring. There are also multiple second flue gas guide holes 24 arranged in a ring.

[0055] This can be understood as follows: along the diameter direction of the inner cylinder 1, all the first flue gas guide holes 14 are located inside all the second flue gas guide holes 24.

[0056] Preferably, the plurality of first flue gas guide holes 14 are arranged in a ring array centered on the central axis of the inner cylinder 1. The plurality of second flue gas guide holes 24 are arranged in a ring array centered on the central axis of the outer cylinder 2.

[0057] In some preferred embodiments, the projections of all the first flue gas guide holes 14 and all the second flue gas guide holes 24 on the side wall of the inner cylinder 1 do not coincide (i.e., they are misaligned).

[0058] By setting the first smoke guide hole 14 and the second smoke guide hole 24 in the manner described above, the guide holes at both ends of the heating non-combustible cigarette holder are not on the same flow channel, which is conducive to the condensation of harmful substances such as tar on the inner wall of the first cavity 13 in the heating non-combustible cigarette holder, thereby reducing the harm of smoking to the human body.

[0059] Optionally, the number of first flue gas guide holes 14 can be 3-10, such as 3, 4, 5, 6, 7, 8, 9, or 10. This number effectively reduces the flue gas temperature, promoting the condensation of harmful substances such as tar inside the first cavity 13. Alternatively, the number of first flue gas guide holes 14 can be greater than 10, but this increases the cost.

[0060] For reference, the cross-section of the first flue gas guide hole 14 can be circular (that is, the first flue gas guide hole 14 is a circular hole), but it is not excluded that it can be in other shapes.

[0061] When the first flue gas guide hole 14 is a circular hole, the diameter of the first flue gas guide hole 14 can be 0.3-0.8mm, such as 0.3mm, 0.35mm, 0.4mm, 0.45mm, 0.5mm, 0.55mm, 0.6mm, 0.65mm, 0.7mm, 0.75mm or 0.8mm, etc., or any other value in the range of 0.3-0.8mm, preferably 0.4-0.5mm.

[0062] It should be noted that the diameter of the first flue gas guide hole 14 should be as small as possible within the range of 0.3-0.8mm, but if it is less than 0.3mm, it will lead to increased suction resistance; when the diameter of the first flue gas guide hole 14 is greater than 0.8mm, some solid substances in the first cavity 13 are likely to leak out, which will greatly reduce the suction quality.

[0063] Similarly, the number of second flue gas guide holes 24 can also be 3-10, such as 3, 4, 5, 6, 7, 8, 9 or 10. Preferably, the number of second flue gas guide holes 24 is equal to the number of first flue gas guide holes 14.

[0064] For reference, the cross-section of the second flue gas guide hole 24 can be circular (that is, the second flue gas guide hole 24 is a circular hole), but it is not excluded that it can be in other shapes.

[0065] When the second flue gas guide hole 24 is a circular hole, its diameter can also be 0.3-0.8 mm, such as 0.3 mm, 0.35 mm, 0.4 mm, 0.45 mm, 0.5 mm, 0.55 mm, 0.6 mm, 0.65 mm, 0.7 mm, 0.75 mm, or 0.8 mm, or any other value within the range of 0.3-0.8 mm, preferably 0.4-0.5 mm. More preferably, the diameter of the second flue gas guide hole 24 is equal to the diameter of the first flue gas guide hole 14.

[0066] In some other embodiments, the first flue gas guide hole 14 may be distributed in multiple annular arrays centered on the central axis of the inner cylinder 1. The multiple annular arrays are arranged sequentially from the central axis of the inner cylinder 1 toward the outer wall of the inner cylinder 1, preferably arranged at intervals.

[0067] Correspondingly, the second flue gas guide hole 24 can be distributed in multiple annular arrays with the central axis of the outer cylinder 2 as the center. The multiple annular arrays are arranged sequentially from the central axis of the outer cylinder 2 toward the outer wall of the inner cylinder 1, preferably arranged at intervals.

[0068] In this application, the second closed end 22 is an embedded stepped structure 221, that is, the end face of the second closed end 22 is recessed inward. Under this condition, the end face of the first open end 11 of the inner cylinder 1 contacts the embedded step of the second closed end 22.

[0069] Correspondingly, the first closed end 12 is a smooth surface, that is, a horizontal smooth surface.

[0070] By setting the second closed end 22 as an embedded stepped structure 221 and the first closed end 12 as a smooth surface, it is beneficial for the machine to identify the head and tail ends of the firmware for heated non-combustible cigarettes, so as to facilitate the effective arrangement of the firmware for heated non-combustible cigarettes on the machine and realize production automation.

[0071] In optional embodiments, the outer diameter of the outer cylinder 2 can be 5-8mm, such as 5mm, 5.5mm, 6mm, 6.5mm, 7mm, 7.5mm, or 8mm, or any other value within the range of 5-8mm. In other embodiments, appropriate adjustments based on the size of the cigarette are also possible.

[0072] In this application, the first cavity 13 of the inner cylinder 1 is used to fill solid slow-release particles. Specifically, it can be filled with different flavored spices according to the needs of smokers.

[0073] For reference, the particle size of the solid slow-release particles can be 1-3 mm, such as 1 mm, 1.5 mm, 2 mm, 2.5 mm or 3 mm, or any other value within the range of 1-3 mm.

[0074] Setting the particle size as described above ensures that the first cavity 13 contains suitable solid slow-release particles, resulting in good suction quality. When the particle size is less than 1 mm, the solid slow-release particles will be too fine, leading to an excessively high filling volume in the same space, which will affect the suction resistance. Furthermore, excessively small particle size will also cause leakage from the flue gas guide hole.

[0075] For reference, the aforementioned solid sustained-release particles can be, exemplarily, granular solid fragrances or fragrance-carrying particles. The fragrance-carrying particles are microporous particles that can carry aroma substances and / or smoky substances. Optionally, the aroma substances can be natural or compound fragrances with characteristic aromas, and the inflammatory substances can be glycerin, a compound smoky agent of glycerin and propylene glycol, or polyethylene glycol, etc.

[0076] As mentioned above, the firmware for heated tobacco provided in this application can effectively reduce the temperature of the smoke and trap some of the tar in the smoke when heated tobacco is smoked, thereby reducing harm. At the same time, it can enhance the aroma and flavor, effectively improving the smoking quality of heated tobacco.

[0077] In addition, this application also provides a method for preparing the above-mentioned fastener for heated non-combustible cigarettes. Specifically, the raw materials for preparing the fastener for heated non-combustible cigarettes can be prepared by injection molding or extrusion molding.

[0078] For reference, the above-mentioned raw materials are biodegradable materials, including, but not limited to, polylactic acid (PLA), polybutylene succinate (PBS), or polyhydroxyalkanoates (PHA).

[0079] In an optional embodiment, the method for preparing the fastener for heated non-combustible cigarettes includes: preparing an inner cylinder by injection molding or extrusion molding; preparing an outer cylinder by injection molding or extrusion molding; and placing the outer cylinder over the outer side of the inner cylinder at the second open end relative to the first open end of the inner cylinder.

[0080] In an optional embodiment, the method further includes filling the first cavity of the inner cylinder with solid slow-release particles. For reference, the filling method for the solid slow-release particles may be weight-based or volume-based filling.

[0081] The above methods can quickly and effectively enable the industrial production and application of firmware for heated non-combustible cigarettes.

[0082] It should be noted that the specific methods and process conditions of the above-mentioned injection molding or extrusion molding can be referred to the existing technology, and will not be elaborated on here.

[0083] In summary, this application provides a first smoke guide hole 14 and a second smoke guide hole 24 at the first closed end 12 of the inner cylinder 1 and the second closed end 22 of the outer cylinder 2, respectively. The projections of the first smoke guide hole 14 and the second smoke guide hole 24 onto a plane parallel to any cross-section of the inner cylinder 1 do not completely coincide. By providing the first smoke guide hole 14 and the second smoke guide hole 24 in the above manner, the guide holes at both ends of the heated tobacco product are not on the same flow path. This facilitates the condensation of harmful substances such as tar on the inner wall of the first cavity 13 in the heated tobacco product, trapping some of the tar in the smoke and reducing the harm of smoking to the human body. Furthermore, when filling with solid slow-release particles, the contact time between the smoke and the slow-release particles can be prolonged, allowing the smoke to effectively carry out the aroma substances or smoke-generating agents in the solid slow-release particles, thereby giving the cigarette a better smoking quality.

[0084] In addition, the aforementioned first smoke guide hole 14 and second smoke guide hole 24 can effectively reduce the smoke temperature and at the same time enhance the aroma, effectively improving the smoking quality of heated non-combustible cigarettes.

[0085] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A solid for a heat-not-burn cigarette, characterized by, The solid material for the heat-not-burn cigarette is in a cylindrical shape, and the inside of the cylindrical solid material has a cavity, The two ends of the cylindrical solid material are provided with a first closed end and a second closed end, the first closed end and the second closed end are respectively provided with a first smoke guide hole and a second smoke guide hole, and the projections of the first smoke guide hole and the second smoke guide hole on a plane parallel to any cross section of the cylindrical solid material do not completely coincide; The solid material for the heat-not-burn cigarette comprises an inner cylinder and an outer cylinder; the two ends of the inner cylinder are respectively a first open end and a first closed end, and the inside of the inner cylinder has a first cavity; the two ends of the outer cylinder are respectively a second open end and a second closed end, and the inside of the outer cylinder has a second cavity; The inner cylinder is embedded in the second cavity, and the first open end of the inner cylinder faces the second closed end of the outer cylinder; The first cavity of the inner cylinder is filled with solid slow-release particles.

2. The heating, not burning, cigarette use solid for claim 1, its characterized in being, The number of the first smoke guide holes is multiple, and the multiple first smoke guide holes are arranged in a ring shape.

3. The heating, not burning, cigarette use solid for claim 2, its characterized in being, The multiple first smoke guide holes are arranged in a ring array around the central axis of the inner cylinder.

4. The solid for a heat-not-burn cigarette according to any one of claims 1 to 3, characterized by, The number of the first smoke guide holes is 3-10.

5. The solid for a heat-not-burn cigarette according to any one of claims 1 to 3, characterized by, The diameter of the first smoke guide hole is 0.3-0.8 mm.

6. The heating, not burning, cigarette, according to claim 1, wherein, The number of the second smoke guide holes is multiple, and the multiple second smoke guide holes are arranged in a ring shape.

7. The heating, not burning, cigarette according to claim 6, wherein The multiple second smoke guide holes are arranged in a ring array around the central axis of the outer cylinder.

8. The solid for a heat-not-burn cigarette according to claim 1 or 6 or 7, characterized by, The number of the second smoke guide holes is 3-10.

9. The solid for a heat-not-burn cigarette according to claim 1 or 6 or 7, characterized by, The diameter of the second smoke guide hole is 0.3-0.8 mm.

10. The heating, not burning, cigarette, according to claim 1, wherein, The second closed end is an embedded step structure, and the end face of the first open end of the inner cylinder is in contact with the embedded step of the second closed end.

11. The heating, not burning, cigarette, according to claim 1, wherein, The first closed end is a smooth surface.

12. The heating, not burning, cigarette, according to claim 1, wherein, The outer diameter of the outer cylinder is 5-8 mm.

13. The heating, not burning, cigarette solid for use in a cartridge according to claim 1, wherein, The first cavity of the inner cylinder is filled with solid slow-release particles with a particle size of 1-3 mm.

14. The heating, not burning, cigarette according to claim 13, wherein, The solid slow-release particles are granular solid flavor or flavor-loaded particles.

15. A method of producing a solid for a heat-not-burn cigarette according to any one of claims 1 to 14, characterized by, The preparation raw material of the solid material for the heat-not-burn cigarette is prepared by injection molding or extrusion molding.

16. The method of claim 15, wherein, The preparation raw material is a degradable material.

17. The method of claim 16, wherein the method further comprises, The degradable material comprises polylactic acid, polybutylene succinate, or polyhydroxyalkanoate.

18. The method of claim 15, wherein, The preparation method comprises: preparing an inner cylinder by injection molding or extrusion molding; preparing an outer cylinder by injection molding or extrusion molding; and sleeving the outer cylinder on the outside of the inner cylinder with the second open end of the outer cylinder relative to the first open end of the inner cylinder.

19. The method of claim 18, wherein, The preparation method further comprises: filling the first cavity of the inner cylinder with solid slow-release particles. The preparation method further comprises: filling the first cavity of the inner cylinder with solid slow-release particles.

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