WO2021174845A1 - Heat-not-burn smoke cartridge - Google Patents

Abstract

A heat-not-burn smoke cartridge, which is composed of a heat-not-burn tobacco regenerant (5) and a packaging housing. The packaging housing comprises a smoke cartridge cup (1) and a smoke cartridge cover (2). The smoke cartridge cup (1) comprises a smoke cartridge cup opening end surface (101), a smoke cartridge cup sidewall surface (102), and a smoke cartridge cup bottom end surface (103), and the smoke cartridge cup (1) is provided with air inflow openings (104). The smoke cartridge cover (2) comprises a smoke cartridge cover top end surface (201) and a smoke cartridge cover sidewall surface (202), and the smoke cartridge cover top end surface (201) is provided with smoke outflow holes (203). The smoke cartridge cover (2) is embedded and fixed in the smoke cartridge cup (1) by clamping and embedding fit with the smoke cartridge cup opening end surface (101). By using such a structure, adverse chemical reactions generated by heating, gluing, and the like and adverse effects on tobacco contents are avoided, use of accessories such as a sealing gasket is avoided, the production cost is greatly reduced, and the processing efficiency is effectively improved.

Description

A heat-not-burn smoke bomb Technical field

The present invention relates to the field of heat-not-burn new tobacco, in particular to a heat-not-burn smoke bomb.

Background technique

With the continuous influx of new tobacco into the market, its production and processing technology has been continuously innovated and developed, especially in the field of heat-not-burn tobacco. In the field of heat-not-burn tobacco, cartridges and their associated smoking sets have received special attention from the industry. The so-called "cigarette bomb" is a shell filled with regenerated tobacco. The cartridge shell will be adjusted accordingly according to the state of tobacco regeneration. The function and purpose of the cartridge case are to maintain, store and protect tobacco regenerating, while ensuring that the cartridge can be ventilated when the user inhales, so as to ensure the inflow of air and the outflow of smoke.

At present, the common heat-not-burn cartridges are sheet-type cartridges, in which the regenerated tobacco is tobacco flakes, and the tobacco flakes are rolled into a cylindrical shape. Since there are gaps between the tobacco sheets, only the sides can be packaged. For example, the sheet-type cartridge used in the Marlboro IQOS heat-not-burn cigarette has a thin paper shell and only the side of the package.

However, with the continuous research and development of tobacco regeneration, tobacco pellets have become a new choice in the current industry. Due to its shape, this kind of tobacco particles is easy to leak out of the package. Therefore, in actual processing, the tobacco particles must be fully packaged, that is, the tobacco particles are packaged by the cartridge shell, so it is used to encapsulate the tobacco particles. The packaging device and packaging method have become the focus and difficulty in the manufacture of particle cartridges. In this regard, the patent application number 201811503459.8 provides a low-temperature non-combustible cartridge structure, the content of which is tobacco particles, the cartridge shell is composed of a cartridge cup, a sealing film and a sealing film, and the thermoplasticity of the sealing film is used to achieve heat sealing. ; The principle of heat sealing is: when the sealing film is heated to more than 200 ℃, the heat sealing glue (thermoplastic glue, such as the most commonly used polyethylene) of the heat cover will soften and glue at high temperature, and then it will contact the cigarette containing tobacco particles. At the opening edge of the bomb cup, the thermal plastic solidifies during the rapid cooling process, thereby fixing the sealing film on the open end of the bomb cup. This patented technology is easily damaged due to the use of a heat-sealing film structure. In addition, due to the use of thermal plastic, the solid thermal plastic after heat sealing will soften and fail when subjected to high temperature again, so there is a temperature tolerance. If the temperature resistance is low (for example, lower than 200°C), when the cartridge is heated for use (the heating temperature is usually 200-400°C), the thermoplastic is prone to softening and failure, resulting in degumming and smoking The projectile can no longer achieve the encapsulation function. If the temperature resistance is higher (for example, higher than 200℃), although the thermoplastic effect can be maintained during heating, however, because the thermoplastic is usually a high molecular polymer, even food-grade thermoplastics are unavoidable. Undesirable chemical changes occur when heated to high temperatures.

In view of this, the inventor believes that it is necessary to further improve the heat-not-burn cartridge to further improve its performance and use effect.

Summary of the invention

In order to solve the above-mentioned problems in the prior art, the present invention provides a heat-not-burn cigarette cartridge, which has a stable shell structure and can reliably encapsulate tobacco regenerates, and since there is no need to heat during the encapsulation process, , Will not affect tobacco regeneration, convenient processing, can greatly reduce production costs and effectively improve processing efficiency.

In order to solve the above technical problems, the present invention adopts the following technical solutions.

According to one aspect of the present invention, there is provided a heat-not-burn cartridge, which is composed of regenerated heat-not-burn tobacco and a packaging shell thereof. The packaging shell includes a cartridge cup and a cartridge cover, wherein the cartridge cup Including the open end surface of the cartridge cup, the side wall surface of the cartridge cup and the bottom end surface of the cartridge cup, and the cartridge cup is provided with an air inlet; the cartridge cover includes the top surface of the cartridge cover and the side wall surface of the cartridge cover, and the top of the cartridge cover The surface is provided with smoke flow outlet holes; the cartridge cover is embedded and fixed in the cartridge cup through the snap fit of the open end surface of the cartridge cup.

According to the above technical solution, because the heat-not-burn cartridge of the present invention adopts the above structure, in particular, the cartridge cover is embedded and fixed in the cartridge cup through the snap fit of the open end surface of the cartridge cup, which is compared with the prior art. , Only through simple mechanical processing and mechanical force action, the cartridge cover can be tightly combined with the open end surface of the cartridge cup (ie, the cartridge cup). The cartridge structure adopting this structure is firm and stable, the processing technology is safe and simple, and can avoid the adverse chemical reactions caused by heating and viscose in the prior art and the disadvantages to the tobacco content in the cartridge cup In addition, it can also avoid the use of accessories such as gaskets used in the prior art, thereby greatly reducing production costs and effectively improving processing efficiency.

Preferably, the total area of the through holes of the smoke flow outlet holes on the top surface of the cartridge cover is not less than the total area of the through holes of the air inlet of the cartridge cup. More preferably, the total area of the through holes of the air inlet of the cartridge cup is not less than 2.8 mm ² . In addition, it is preferable that the air inlet is arranged at the bottom end surface of the cartridge cup and/or the proximal end of the side wall surface of the cartridge cup.

According to the above technical solution, since the total area of the through holes of the flue gas outlet holes on the top surface of the cartridge cover is not less than the total area of the through holes of the air inlet of the cartridge cup, that is, the air inflow is not less than the flue gas outflow. Ensure full utilization of gas and effectively improve flue gas conversion efficiency. Based on a large number of experimental studies, the inventor found that for the specific field of cartridges, the total area of the through holes of the air inlet of the cartridge cup is not less than 2.8 mm ² to ensure that the user draws smoothly and has no sense of obstruction.

Preferably, smoke bombs cup sidewall having a taper surface K _1, having a smoke bomb lid sidewall tapered surface K _2, and, 0≤K ₂ <K ₁ ≤0.25, and more preferably _{0 <K 2 <K 1 ≤0.25} . What is explained here is that the so-called "the taper of the side wall surface of the cartridge cup K ₁ "is the ratio of the difference between the diameter of the top port and the bottom end surface of the cartridge cup to the height of the cartridge cup, that is, the taper of the side wall surface of the cartridge cup is K _{1. The} diameter of the top surface of the cartridge cup is D ₁ , the diameter of the bottom port of the cartridge cup is d ₁ , and the height of the cartridge cup is H ₁ , the calculation formula of the taper K _{1 is: K 1} =(D ₁ -d ₁ )/ H ₁ ; The so-called "the side wall surface of the cartridge cover has a taper K ₂ "is the ratio of the difference between the diameter of the top surface and the bottom port of the cartridge cover to the height of the cartridge cover, that is, the taper of the side wall of the cartridge cover is K ₂ , shells cover the top surface diameter D _2, smoke bombs cover bottom port diameter d _2, smoke bombs cover height H _2, the tapered surface of the cover sidewall smoke bombs K ₂ is calculated as _{follows: K 2 = (D 2 -d} 2) /H ₂ .

According to the above technical solution, since the side wall surface of the cartridge cup and the side wall surface of the cartridge cover adopt a structural design with a certain taper, it is beneficial to realize the progressive heating of the cartridge when the cartridge is used in the smoking device. The taper structure is conducive to the accumulation and transfer of heat inside the cartridge; in addition, the structure is also conducive to determining the top-bottom direction of the cartridge during production and use, so as to facilitate the arrangement during production and the handling and placement during use ; Furthermore, this structure is beneficial to improve the long-lasting stability of the cartridge packaging shell structure; when 0=K ₂ ＜K ₁ ≤0.25, the side wall of the cartridge cover is straight. In this case, the cartridge The cap has the greatest expansion tendency, which can significantly improve the stability and firmness of the cartridge packaging shell structure; when 0＜K ₂ ＜K ₁ ≤0.25, the diameter of the bottom port of the cartridge cover is smaller than the diameter of the top surface of the cartridge cover, that is, the cartridge cover The diameter of the bottom port of the lid is smaller than the inner diameter of the opening at the top of the cartridge cup. In this case, a part of the bottom end of the cartridge cover can easily enter the inside of the cartridge cup, which is beneficial to position alignment in mechanical production and ensures the effective action of mechanical force.

More preferably, the cartridge cover realizes the snap fit with the open end surface of the cartridge cup through a pressurized expansion processing method. The main material of the cartridge cup body and the cover body are the same, the expansion coefficient is the same, the structure is stable after the cover is pressed, and it is not easy to separate.

According to the above technical solution, since the side wall surface of the cartridge cup has a certain taper K ₁ (that is, the cartridge body has a tapered structure), the taper K _{2 of the} side wall surface of the cartridge cover is greater than or equal to 0 (ie, the side wall of the cartridge cover It is a straight cylindrical structure or a tapered structure), and the taper K _{1 of the side wall surface of the cartridge cup is greater than the taper K 2 of the} side wall surface of the cartridge cover. Therefore, this specific structure is conducive to the realization of the cartridge cover and the cartridge cover provided by the present invention. The cartridge cup is packaged and combined and fixed. Specifically, because the taper of the cartridge cover is smaller than the taper of the cartridge cup, when the cartridge cover is pressed into the cartridge cup by mechanical pressure, the cartridge will be forced under the action of the mechanical pressure and the sidewall surface of the cartridge cup. The cover deforms inwardly, thereby producing an outward expansion trend, which can be tightly combined with the side wall surface of the cartridge cup, so that the cartridge cover can be reliably clamped and fixed in the cartridge cup to form a cartridge packaging shell Solid, stable and sealed structure.

Preferably, an anti-clogging device with a porous structure is provided at the bottom of the cartridge cup. More preferably, the air permeability of the anti-clogging device is not less than 2000 CU. The anti-clogging device can adopt a fiber structure, a mesh structure, a sand core structure, a porous structure formed by die casting of solid particles, and the like.

According to the above technical solution, an anti-clogging device is provided in the cartridge cup, which can play an anti-clogging effect, preventing the tobacco content from leaking and blocking the through holes during production, transportation, and use, so as to ensure the passage of smoke And conversion efficiency; and can also improve the filtering effect, because the smoke generated in the cartridge will carry part of the tobacco content or impurity fine powder, the particle size of these fine powders is often smaller than the aperture of the through hole, but larger than the air gap diameter of the anti-clogging device. Therefore, it can be filtered in the cartridge through the anti-clogging device.

Preferably, an airtight sealing layer is pasted on the outer surface of the bottom end surface of the cartridge cup and the outer surface of the top surface of the cartridge cover, and the sealing layer can be made of plastic, aluminum foil, paper or similar materials.

According to the above technical solution, by providing an air-tight sealing layer on the outer surface of the cartridge, it can protect the tobacco content, prevent its components from volatilizing, and prevent the tobacco content from deterioration or loss due to external pollution; protect the through-hole structure of the cartridge to prevent through-holes Blocked; protect the cartridge packaging shell from damage and deformation.

Description of the drawings

Hereinafter, the preferred embodiments of the present invention will be described in more detail with reference to the accompanying drawings, so as to better understand the above-mentioned objects, advantages, and other objects and advantages of the present invention. in:

Fig. 1 is a schematic diagram schematically showing the manufacturing and assembling process of the cartridge of the present invention.

Figure 2a is a schematic structural diagram showing the overall structure of the cartridge of the present invention.

Fig. 2b is a partial enlarged view of the open end surface of the cartridge cup in Fig. 2a.

Figure 3 is a schematic structural diagram showing another improved structure of the cartridge cup of the present invention.

Figure 4 is a schematic structural diagram showing another improved structure of the cartridge cup of the present invention.

Figure 5 is a schematic structural diagram showing another improved structure of the cartridge cup of the present invention.

in:

1- Cigarette bomb cup 2- Cigarette bomb cover 3- Anti-clogging device 4- Sealing layer

101-The open end of the cartridge cup 102-The side wall of the cartridge cup 103-The bottom end of the cartridge cup

104-air inlet

201-Top surface of the cartridge cover 202-Side wall surface of the cartridge cover 203-Smoke flow outlet

5- Tobacco regeneration

Detailed ways

Hereinafter, the embodiments of the present invention will be described in detail with reference to the accompanying drawings.

Figure 1 is a schematic diagram of the assembly of the cartridge, which shows the assembly process of the cartridge of the present invention. As shown in Fig. 1, the cartridge cover 2 realizes the snap fit with the open end surface of the cartridge cup through the pressurized expansion processing method.

<Example 1>

Figure 2a is a schematic structural diagram showing the structure of the cartridge related to the present invention. As shown in Fig. 2a, the cartridge is composed of a heat-not-burn tobacco regenerated material 5 and its packaging shell. The packaging shell includes a cartridge cup 1 and a cartridge cover 2.

The cartridge cup 1 is provided with an open end surface 101 of the cartridge cup, a side wall surface 102 of the cartridge cup, and a bottom end surface 103 of the cartridge cup. The bottom end surface 103 of the cartridge cup is provided with an air inlet 104 that allows air to flow in, and the total area of the through holes of the air inlet 104 is 4.2 mm ² . The cartridge cup 1 can be stamped from metal aluminum, with a height of 16 mm and a thickness of 0.24 mm, and the diameter of the bottom end surface 103 of the cartridge cup is 8.0 mm.

As shown in Fig. 2b, the open end surface 101 of the cartridge cup is provided with an external flange, and the extension width of the flange is 1 mm. The side wall surface 102 of the cartridge cup has a certain taper, for example, the taper is 0.12.

The cartridge cover 2 is provided with a top surface 201 of the cartridge cover and a side wall surface 202 of the cartridge cover. The top surface 201 of the cartridge cover adopts a porous structure, that is, a plurality of flue gas outlet holes 203 are provided, and the total area of the through holes is 4.8 mm ² . The sidewall surface 202 of the cartridge cover has a certain taper, and in this embodiment, the taper is 0.08.

As shown in Fig. 2a, an anti-clogging device 3 is provided on the inner bottom side of the cartridge cup 1. The anti-clogging device 3 can adopt a fiber sheet made of pure cotton fiber with a thickness of 0.02 mm, and its air permeability is preferably 6000-8000 CU.

In addition, a sealing layer 4 is provided on the outer surface of the bottom end surface 103 of the cartridge cup and the outer surface of the top end surface 201 of the cartridge cover. The sealing layer 4 can be made of aluminum foil, which can be pasted on the outer surface of the bottom end surface 103 of the cartridge cup and the top surface 201 of the cartridge cover by glue. During use, the smoker can remove the sealing layer 7 and use the cartridge.

In this embodiment, the regenerated tobacco 5 is tobacco particles, and the cross-section of the cartridge is circular, so that it can be used as a heat transfer smoking device with a cylindrical wall.

The production process of the cartridge of this embodiment is as follows: first, the cartridge cup 1 and the cartridge cover 2 are molded from aluminum material. After that, a sealing layer 4 made of aluminum foil is pasted on the outer surface of the bottom end surface 103 of the cartridge cup. Subsequently, the anti-clogging device 3 is placed in the cartridge cup 1 to ensure that the anti-clogging device 3 completely covers the air inlet 104 of the bottom end surface 103 of the cartridge cup, and the cartridge cup 1 is filled with tobacco particles. Tobacco regeneration 5. Then, a sealing layer 4 made of aluminum foil is pasted on the outer surface of the top surface 201 of the cartridge cover. Finally, the cartridge cover 2 is aligned with the cartridge cup 1 and the cartridge cover 2 is pressed downward to fix it in the cartridge cup 1, thereby making a cartridge.

When using the cigarette cartridge of this embodiment, the user can first remove the sealing layer 4 at both ends of the cartridge, and then place the cartridge in the heat transfer smoking device on the wall of the smoking device, close the heating chamber and start the heating device for smoking. Suck. After the smoking is finished, the heating cavity of the smoking set can be opened, and the residual cartridges that have been heated to release the smoke can be taken out.

Figure 3 shows another improved structure of the cartridge cup 1 of the present invention. The cartridge cup 1 is made of ceramic firing, and its height is 30mm and the thickness is 0.19mm; the diameter of the bottom end of the cartridge cup is 10.0mm, and the extension width of the outer flange of the open end of the cartridge cup is 2mm; The side wall surface of the bullet cup has a certain taper, and the taper may be 0.07, for example. An air inlet 104 is provided on the bottom end of the cartridge cup, and the total area of the through holes is 6.0 mm ² . An anti-clogging device 3 with a mesh structure is arranged in the cartridge cup 1, which is made of high-temperature sintered quartz particles on a fine iron wire mesh, with a thickness of 3 mm and an air permeability of 2500-3500 CU.

Figure 4 shows another improved structure of the cartridge cup 1 of the present invention. The cartridge cup 1 has a double-layer structure, that is, the outer wall is formed by high-temperature sintering of ceramics, and the iron film on the inner wall is formed after being sintered in a high-temperature environment. This structure ensures that the internal heat of the cartridge cup is evenly concentrated, reduces heat loss, and is beneficial to heating. The overall height of the cartridge cup 1 is 10.0mm, and the thickness is 0.35mm. The diameter of the bottom end of the cartridge cup is 12mm, and the extension width of the outer flange of the open end of the cartridge cup is 3mm. The side wall of the cartridge cup has a certain taper, and the taper may be 0.25, for example. In Embodiment 3, the bottom end surface of the cartridge cup 1 and the lower end of the side wall surface of the cartridge cup are provided with an air inlet 104, and the total area of the through holes is 2.8 mm ² . The cartridge cup 1 is provided with an anti-clogging device 3, which is made of quartz particles mixed with silicon crystal ultra-fine powder through high-pressure molding, with a thickness of 1.0 mm and an air permeability of 4000-6000 CU.

Figure 5 shows another improved structure of the cartridge cup 1 of the present invention. The cartridge cup 1 is made of aluminum stamping and has a height of 9mm and a thickness of 0.22mm. The diameter of the bottom end of the cartridge cup is 3.5mm, and the extension width of the outer flange of the open end of the cartridge cup is 0.5mm. The taper of the side wall of the cartridge cup is 0.18. The air inlet 104 is arranged at the bottom end of the side wall of the cartridge cup, and the total area of the through holes is 4.0 mm ² . The cartridge cup 1 is provided with an anti-clogging device 3, which is made of copper granular material by sintering or die-casting, with a thickness of 2.0 mm and an air permeability of 3000-5500 CU.

The above content is only the best embodiment of the present invention. It should be emphasized that, without departing from the inventive idea of the present invention, various modifications and improvements made to the present invention by those of ordinary skill in the art should fall within the protection scope of the present invention.

Claims (10)

A heat-not-burn cigarette cartridge, which is composed of a regenerated heat-not-burn tobacco (5) and a packaging shell thereof. The packaging shell includes a cartridge cup (1) and a cartridge cover (2), and is characterized in: The cartridge cup (1) includes an open end surface (101) of the cartridge cup, a side wall surface (102) of the cartridge cup and a bottom end surface (103) of the cartridge cup, and the cartridge cup (1) is provided with an air flow Entrance (104); The cartridge cover (2) includes a top surface (201) of the cartridge cover and a side wall surface (202) of the cartridge cover, and the top surface (201) of the cartridge cover is provided with a smoke flow outlet (203); The cartridge cover (2) is embedded and fixed in the cartridge cup (1) through the snap fit of the open end surface (101) of the cartridge cup. The heat-not-burn cartridge according to claim 1, characterized in that: the total area of the through holes of the flue gas outlet holes (203) on the top surface (201) of the cartridge cover is not less than that of the cartridge cup (1) The total area of the through holes of the air inlet (104). The heat-not-burn cartridge according to claim 1 or 2, characterized in that the total area of the through holes of the air inlet (104) of the cartridge cup (1) is not less than 2.8 mm ² . The heat-not-burn cartridge according to claim 1 or 2, characterized in that the air inlet (104) is provided on the bottom end surface (103) of the cartridge cup and/or the side wall surface ( 102) near the bottom. The heat-not-burn cartridge according to claim 1, characterized in that: the side wall surface (102) of the cartridge cup has a taper K ₁ , the side wall surface (202) of the cartridge cover has a taper K ₂ , and 0 ≤K ₂ ＜K ₁ ≤0.25. The heat-not-burn cartridge according to claim 1 or 5, characterized in that the cartridge cover (2) forms a snap fit with the open end surface (101) of the cartridge cup through a pressurized expansion process. The heat-not-burn cartridge according to any one of claims 1-6, characterized in that: an anti-clogging device (3) with a porous structure is provided at the bottom of the cartridge cup (1). The heat-not-burn cartridge according to claim 7, characterized in that the air permeability of the anti-clogging device (3) is not less than 2000 CU. The heat-not-burn cartridge according to any one of claims 1-8, characterized in that: on the outer surface of the bottom end surface (103) of the cartridge cup and the outer surface of the top surface (201) of the cartridge cover An airtight sealing layer (4) is pasted on the surface, and the sealing layer (4) is made of plastic, aluminum foil, paper or similar materials. The heat-not-burn cartridge according to any one of claims 1-9, characterized in that: the wall surface of the cartridge cup (1) is a multilayer composite structure, and the multilayer composite structure is preferably made of ceramic high-temperature firing The outer wall is formed, and a metal film is attached to the inside.

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