Cigarette filter tip ventilation rate stabilizing structure and cigarette
By setting the structure of the heat shrink sleeve and fiber bundle in the cigarette, the problem of the cigarette ventilation rate decreases with the increase of the number of suctions is solved, and the ventilation rate of the cigarette is stabilized during the second half of the suction is achieved, ensuring the taste of the cigarette consumption. stability.
Patent Information
- Application Number
- CN202420998383.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-09
- Publication Date
- 2025-02-14
- Estimated Expiration
- 2034-05-09
AI Technical Summary
The ventilation rate of cigarettes gradually decreases with the increase in the number of suctions, resulting in an increase in the concentration of smoke and affecting the stability of the taste of the sucking.
A heat shrink sleeve and a first fiber bundle are arranged between the cigarette tobacco part and the filter, and the heat shrink sleeve is used to shrink under high temperature conditions. The extrusion of the fiber bundle increases suction resistance and maintains a stable ventilation rate.
By adjusting the shrinkage of the heat shrink sleeve and the density of the fiber bundle, the ventilation rate of the cigarette during the second half of the suction is stable, the smoke concentration is reduced, and the stability of the suction taste is ensured.
Smart Images
Figure CN222466033U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of cigarettes, in particular to a cigarette filter ventilation rate stabilizing structure and a cigarette. Background Art
[0002] Cigarette filter ventilation and dilution technology is an important means of reducing tar and harm in cigarettes. Filter ventilation and dilution technology uses mechanical punching, electrostatic punching, plasma punching or laser punching to make single or multiple rows of small holes on the cigarette filter. When the cigarette is smoked, air passes through the filter holes and mixes into the mainstream smoke of the cigarette, thereby diluting the smoke and achieving the effect of reducing tar and harm.
[0003] At present, the technical personnel in this field focus on the research of perforation technology in terms of tar reduction and harm reduction and the physical and chemical indicators of conventional cigarette smoke, while ignoring the sensory quality and smoking experience of cigarettes with filter ventilation holes. Experimental studies on filter-ventilated cigarettes have found that the ventilation rate of cigarettes gradually decreases with the increase of the number of puffs of cigarettes, and the draw resistance of cigarettes first decreases and then increases with the increase of the number of puffs of cigarettes, resulting in increasingly dense smoke during the puffing process of cigarettes; how to ensure the stability of the taste of cigarettes puff by puff while reducing tar and harm has become a problem that needs to be solved in this field. Utility Model Content
[0004] Therefore, the technical problem to be solved by the utility model is to overcome the defect that the ventilation rate of cigarettes gradually decreases as the number of puffs of the cigarette increases, thereby providing a cigarette filter ventilation rate stable structure and cigarettes.
[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:
[0006] A cigarette filter ventilation rate stabilizing structure, comprising:
[0007] A heat shrinkable sleeve, the heat shrinkable sleeve is arranged between the tobacco portion of the cigarette and the cigarette filter, the heat shrinkable sleeve has a rated heat shrinkage temperature, and the heat shrinkable sleeve is suitable for shrinking when the heated temperature reaches the rated heat shrinkage temperature;
[0008] The first fiber bundle is accommodated in the heat shrinkable tube, and the density of the first fiber bundle increases when the heat shrinkable tube shrinks, so as to increase the inhalation resistance of smoke and improve the ventilation rate of the cigarette filter.
[0009] To further optimize the technical solution, the heat shrinkable sleeve is arranged at the rear section of the tobacco part of the cigarette and at the front section of the cigarette filter.
[0010] To further optimize the technical solution, the heat shrinkable sleeve is coaxially arranged with the tobacco portion of the cigarette and the cigarette filter respectively, and the first fiber bundle includes a plurality of fiber filaments, and the fiber filaments are parallel to the central axis of the heat shrinkable sleeve.
[0011] To further optimize the technical solution, the length of the heat shrinkable tube does not exceed 5 mm, and the diameter of the heat shrinkable tube is the same as the diameter of the tobacco part of the cigarette.
[0012] To further optimize the technical solution, the heat shrinkable tube is a polyester heat shrinkable tube, the rated heat shrinkage temperature of the heat shrinkable tube is lower than 70°C, and the shrinkage ratio of the heat shrinkable tube is 2:1.
[0013] To further optimize the technical solution, the first fiber bundle is an acetate fiber bundle.
[0014] Further optimization of the technical solution also includes:
[0015] The perforated throttle plate is arranged between the tobacco part of the cigarette and the heat shrinkable tube and is suitable for separating the tobacco part of the cigarette from the heat shrinkable tube. The perforated throttle plate is provided with a plurality of smoke through holes, each of which corresponds to the inner cavity of the heat shrinkable tube before and after shrinkage.
[0016] A cigarette, comprising:
[0017] A cigarette tobacco portion, wherein shredded tobacco is contained in the cigarette tobacco portion;
[0018] A cigarette filter, wherein the cigarette filter is provided with at least one row of ventilation hole groups, each of the ventilation hole groups includes at least one ventilation hole, and at least one ventilation hole is connected to the outside atmosphere;
[0019] The cigarette filter ventilation rate stabilizing structure is placed between the cigarette tobacco part and the cigarette filter.
[0020] To further optimize the technical solution, the ventilation holes are arranged in the middle section of the cigarette filter.
[0021] To further optimize the technical solution, a second fiber bundle is accommodated inside the cigarette filter, and the density of the first fiber bundle is less than the density of the second fiber bundle.
[0022] The technical solution of this utility model has the following advantages:
[0023] 1. The utility model provides a cigarette filter with a stable ventilation rate structure. A heat shrink tube containing first fibers is placed between the tobacco part of the cigarette and the cigarette filter, and the shape of the heat shrink tube changes with the degree of smoking of the cigarette. In the first half of smoking the cigarette, the smoke is cooled by the cigarette tobacco, and when it reaches the heat shrink tube, it can no longer shrink the heat shrink tube. At this time, the suction resistance at the heat shrink tube remains at a low level; when the cigarette is smoked to the second half, the length of the tobacco part is not enough to cool the smoke. At this time, the heat shrink tube reaches the rated heat shrinkage temperature in the higher temperature smoke and begins to shrink, squeezing the first fiber bundle inside the tube to make it denser, increasing the suction resistance when the smoke passes through, and reducing the concentration of the smoke in the second half of smoking the cigarette, so that more air enters the ventilation hole of the cigarette filter, maintaining the stable ventilation rate of the cigarette in the second half of smoking, thereby reducing tar and harm while ensuring the stable taste of the cigarette puff by puff.
[0024] 2. The utility model provides a cigarette filter ventilation rate stabilizing structure, in which a heat shrinkable tube is arranged at the rear section of the tobacco portion of the cigarette and at the front section of the cigarette filter. Therefore, when the rear section of the cigarette is inhaled, the temperature generated by the smoke will make the temperature of the heat shrinkable tube higher than the rated heat shrinkage temperature, causing the heat shrinkable tube to shrink.
[0025] 3. The utility model provides a cigarette filter ventilation rate stabilizing structure, wherein the heat shrinkable sleeve is coaxially arranged with the cigarette tobacco part and the cigarette filter respectively, and the first fiber bundle includes a plurality of fiber filaments, and the fiber filaments are parallel to the central axis of the heat shrinkable sleeve. When the heat shrinkable sleeve shrinks, the heat shrinkable sleeve squeezes the fiber filaments, so that the gaps between the fiber filaments become smaller, thereby increasing the resistance of smoke passing through the gaps between the fiber filaments.
[0026] 4. The utility model provides a cigarette filter with a stable ventilation rate structure, wherein an open throttling plate is arranged between the cigarette tobacco portion and the heat shrinkable tube and is suitable for separating the cigarette tobacco portion from the heat shrinkable tube, and each smoke through hole corresponds to the inner cavity of the heat shrinkable tube before and after shrinkage, respectively, to ensure that all smoke passes through the inside of the heat shrinkable tube after the heat shrinkable tube shrinks, and then after the heat shrinkable tube shrinks, the compressed first fiber bundle will increase the resistance to the smoke.
[0027] 5. The utility model provides a cigarette in which a cigarette filter ventilation rate stabilizing structure arranged between the tobacco portion of the cigarette and the cigarette filter can reduce tar and reduce harm while allowing more air to enter from the ventilation holes of the cigarette filter, thereby improving the ventilation rate of the cigarette filter and ensuring a stable puff-by-puff taste of the cigarette.
[0028] 6. The utility model provides a cigarette, wherein a second fiber bundle is accommodated inside the cigarette filter, and the density of the first fiber bundle is smaller than that of the second fiber bundle, so that there is only a small resistance in the first half of smoking the cigarette. BRIEF DESCRIPTION OF THE DRAWINGS
[0029] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.
[0030] Figure 1 A schematic diagram of the structure of a cigarette provided by the utility model in the first half of being smoked;
[0031] Figure 2 The utility model is a schematic diagram of the structure of a cigarette in the second half of being smoked.
[0032] Reference numerals:
[0033] 1. Cigarette tobacco part; 2. Cigarette filter; 3. Ventilation hole; 4. Heat shrink sleeve; 5. First fiber bundle; 6. Open hole throttling plate. DETAILED DESCRIPTION
[0034] The technical solution of the utility model will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0035] In the description of the present invention, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention.
[0036] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0037] In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.
[0038] The specific embodiments of the present invention are described in detail below in conjunction with the cigarette filter ventilation rate stabilizing structure of the first aspect of the present invention.
[0039] Combination Figure 1 and Figure 2 As shown, this embodiment discloses a cigarette filter ventilation rate stabilizing structure, which is a filter that increases smoke flow resistance in the second half of smoking a cigarette, and includes a heat shrinkable sleeve 4 and a first fiber bundle 5. The heat shrinkable sleeve 4 is arranged between the cigarette tobacco portion 1 and the cigarette filter 2, and the heat shrinkable sleeve 4 has a rated heat shrinkage temperature. The heat shrinkable sleeve 4 is suitable for shrinking when the heated temperature reaches the rated heat shrinkage temperature. The first fiber bundle is accommodated in the heat shrinkable sleeve 4, and the first fiber bundle is suitable for increasing density when the heat shrinkable sleeve 4 shrinks, so as to increase the smoke resistance and improve the cigarette filter ventilation rate.
[0040] The above-mentioned cigarette filter ventilation rate stabilizing structure is applied to traditional cigarettes, because a heat shrinkable tube 4 containing first fibers is placed between the cigarette tobacco portion 1 and the cigarette filter 2, and the shape of the heat shrinkable tube 4 changes with the degree of smoking of the cigarette. Figure 1 As shown, in the first half of smoking a cigarette, the smoke is cooled by the cigarette shreds and cannot shrink the heat shrinkable tube 4 when it reaches the heat shrinkable tube 4. The heat shrinkable tube 4 is not deformed. At this time, the inhalation resistance at the heat shrinkable tube 4 remains at a low level; Figure 2 As shown, when the cigarette is smoked to the second half, the length of the tobacco part is not enough to cool the smoke. At this time, the heat shrink tube reaches the rated heat shrinkage temperature in the smoke with a higher temperature and begins to shrink, squeezing the first fiber bundle inside the tube to make it denser, increasing the inhalation resistance when the smoke passes through, and reducing the concentration of the smoke in the second half of smoking the cigarette, so that more air can enter the ventilation holes of the cigarette filter, keeping the ventilation rate of the cigarette stable in the second half of smoking, thereby reducing tar and reducing harm while ensuring the stable taste of the cigarette puff by puff.
[0041] In some embodiments, the heat shrink tube 4 is arranged at the rear section of the cigarette tobacco portion 1 and at the front section of the cigarette filter 2. Therefore, when the rear section of the cigarette is inhaled, the temperature generated by the smoke will make the temperature of the heat shrink tube 4 higher than the rated heat shrink temperature, causing the heat shrink tube 4 to shrink.
[0042] In some embodiments, the heat shrinkable tube 4 is coaxially arranged with the cigarette tobacco portion 1 and the cigarette filter 2, respectively, and the first fiber bundle includes a plurality of fiber filaments, and the fiber filaments are parallel to the central axis of the heat shrinkable tube 4. In this embodiment, when the heat shrinkable tube 4 shrinks, the heat shrinkable tube 4 squeezes the fiber filaments, so that the gaps between the fiber filaments become smaller, thereby increasing the resistance of smoke passing through the gaps between the fiber filaments.
[0043] In some embodiments, the length of the heat shrinkable tube 4 does not exceed 5 mm, that is, the length of the heat shrinkable tube 4 is less than or equal to 5 mm. The diameter of the heat shrinkable tube 4 is the same as the diameter of the tobacco part 1 of the cigarette.
[0044] In some embodiments, the heat shrinkable tube 4 is a PET heat shrinkable tube (polyester heat shrinkable tube), the rated heat shrinkage temperature of the heat shrinkable tube 4 is lower than 70°C, and it can start to shrink at an ambient temperature of 70-80°C, and the shrinkage ratio of the heat shrinkable tube 4 is 2:1. The heat shrinkable tube 4 is a variable suction resistance structure, and the heat shrinkable tube 4 does not deform in the first half of smoking the cigarette; Figure 2 As shown, in the second half of smoking a cigarette, the temperature of the mainstream smoke gradually increases when passing through the filter and can reach the shrinkage temperature of the PET heat shrinkable tube.
[0045] In some embodiments, the first fiber bundle is an acetate fiber bundle, which has a firm texture, is non-toxic and tasteless, has good stability, has a significant interception and filtration effect, and can selectively absorb harmful components in cigarette smoke.
[0046] In some embodiments, the cigarette filter ventilation rate stabilizing structure also includes an open throttle plate 6, which is arranged between the cigarette tobacco portion 1 and the heat shrinkable tube 4 and is suitable for separating the cigarette tobacco portion 1 from the heat shrinkable tube 4. The open throttle plate 6 is provided with a plurality of smoke through holes, each of which corresponds to the inner cavity of the heat shrinkable tube 4 before and after shrinkage, so as to ensure that all the smoke passes through the inside of the heat shrinkable tube 4 after the heat shrinkable tube 4 shrinks, and then after the heat shrinkable tube 4 shrinks, the compressed first fiber bundle will increase the resistance to the smoke.
[0047] The specific embodiments of the present utility model are described in detail below in conjunction with the cigarette according to the second aspect of the present utility model.
[0048] Combination Figure 1 and Figure 2 As shown, this embodiment discloses a cigarette, including a cigarette tobacco portion 1, a cigarette filter 2 and a cigarette filter ventilation rate stabilizing structure. The interior of the cigarette tobacco portion 1 contains shredded tobacco. The cigarette filter 2 is provided with at least one row of ventilation hole groups, each ventilation hole group includes at least one ventilation hole 3, and at least one ventilation hole 3 is connected to the outside atmosphere. The ventilation hole 3 is arranged in the middle section of the cigarette filter 2. The cigarette filter ventilation rate stabilizing structure is placed between the cigarette tobacco portion 1 and the cigarette filter 2.
[0049] In the above-mentioned cigarette, the cigarette filter ventilation rate stabilizing structure arranged between the cigarette tobacco part 1 and the cigarette filter 2 can reduce tar and reduce harm while allowing more air to enter from the ventilation holes 3 of the cigarette filter 2, thereby improving the ventilation rate of the cigarette filter 2 and ensuring a stable taste of the cigarette puff by puff.
[0050] In some embodiments, the cigarette filter 2 contains a second fiber bundle, which is an acetate fiber bundle. The density of the first fiber bundle is less than that of the second fiber bundle, so that there is only a small resistance in the first half of smoking the cigarette, which does not affect the taste of smoking.
[0051] like Figure 1 As shown, when the first half of the cigarette is smoked, the heat shrinkable sleeve 4 does not shrink, and the draw resistance at the heat shrinkable sleeve remains at a low level. Figure 2 As shown, when the second half of the above-mentioned cigarette is inhaled, the length of the tobacco part of the cigarette is not enough to cool the smoke, and the temperature of the mainstream smoke gradually increases to reach the shrinkage temperature of the PET heat shrink tube. When the tube shrinks, the acetate fiber inside it is compressed to make it denser, thereby increasing the flow resistance of the mainstream smoke; the flow resistance of the mainstream smoke increases, and when the total air flow at the filter outlet remains unchanged (that is, the person's suction force on the cigarette remains unchanged), more air enters from the filter ventilation holes to achieve the purpose of increasing the filter ventilation rate.
[0052] Obviously, the above embodiments are merely examples for the purpose of clear explanation, and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived from these are still within the scope of protection of the invention of the utility model.
Claims
1. A cigarette filter ventilation rate stabilizing structure, characterized in that: include: A heat shrinkable tube (4), the heat shrinkable tube (4) being arranged between the cigarette tobacco portion (1) and the cigarette filter (2), the heat shrinkable tube (4) having a rated heat shrinkage temperature, and the heat shrinkable tube (4) being adapted to shrink when the heated temperature reaches the rated heat shrinkage temperature; A first fiber bundle is contained in the heat shrinkable tube (4), and the first fiber bundle is adapted to increase in density when the heat shrinkable tube (4) shrinks, so as to increase the inhalation resistance of smoke and improve the ventilation rate of the cigarette filter.
2. The cigarette filter ventilation rate stabilizing structure according to claim 1, characterized in that: The heat shrinkable sleeve (4) is arranged at the rear section of the cigarette tobacco part (1) and at the front section of the cigarette filter (2).
3. The cigarette filter ventilation rate stabilizing structure according to claim 1, characterized in that: The heat shrinkable sleeve (4) is coaxially arranged with the cigarette tobacco part (1) and the cigarette filter (2), respectively; the first fiber bundle comprises a plurality of fiber strands, and the fiber strands are parallel to the central axis of the heat shrinkable sleeve (4).
4. The cigarette filter ventilation rate stabilizing structure according to claim 1, characterized in that: The length of the heat shrinkable tube (4) does not exceed 5 mm, and the diameter of the heat shrinkable tube (4) is the same as the diameter of the tobacco part (1) of the cigarette.
5. The cigarette filter ventilation rate stabilizing structure according to claim 1, characterized in that: The heat shrinkable tube (4) is a polyester heat shrinkable tube, the rated heat shrinkage temperature of the heat shrinkable tube (4) is lower than 70° C., and the shrinkage ratio of the heat shrinkable tube (4) is 2:
1.
6. The cigarette filter ventilation rate stabilizing structure according to claim 1, characterized in that: The first fiber bundle is an acetate fiber bundle.
7. The cigarette filter ventilation rate stabilizing structure according to claim 1, characterized in that: Also includes: A perforated throttling plate (6) is arranged between the cigarette tobacco portion (1) and the heat shrinkable tube (4) and is suitable for separating the cigarette tobacco portion (1) from the heat shrinkable tube (4). The perforated throttling plate (6) is provided with a plurality of smoke through holes, each of which corresponds to the inner cavity of the heat shrinkable tube (4) before and after shrinkage.
8. A cigarette, characterized in that: include: A cigarette tobacco part (1), wherein shredded tobacco is contained in the cigarette tobacco part (1); A cigarette filter (2), wherein the cigarette filter (2) is provided with at least one row of ventilation hole groups, each ventilation hole group comprises at least one ventilation hole (3), and at least one ventilation hole (3) is connected to the outside atmosphere; The cigarette filter ventilation rate stabilizing structure according to any one of claims 1 to 7, wherein the cigarette filter ventilation rate stabilizing structure is placed between the cigarette tobacco portion (1) and the cigarette filter (2).
9. The cigarette according to claim 8, characterized in that: The ventilation holes (3) are arranged in the middle section of the cigarette filter (2).
10. The cigarette according to claim 8 or 9, characterized in that: The cigarette filter (2) contains a second fiber bundle inside, and the density of the first fiber bundle is smaller than the density of the second fiber bundle.