JP7474860B2 - Heat-not-burn cigarette with adjustable ventilation rate and ventilation position of tube wall and adjustment method - Google Patents

Description

The present invention belongs to the field of heated tobacco products, and specifically relates to a heated tobacco product in which the air permeability and ventilation position of the tube wall can be adjusted, and a method for adjusting the same.

As smokers become more health-conscious and demand more personalized tobacco product experiences, the tobacco industry has developed a variety of heated tobacco products with reduced tar and harmful substances to meet smokers' growing demands. Non-combustion heated tobacco products differ from traditional cigarette products in the way they heat tobacco, and therefore can satisfy smokers' sensory demands for tobacco products and provide a healthier smoking experience.

Conventional heated cigarettes mainly comprise a smoke-emitting core section, a hollow support section, a temperature-reducing section and a filter section. In order to introduce air to increase the ventilation volume and effectively reduce the temperature of the smoke, holes are usually drilled in the hollow support section of the heated cigarette using an online laser drilling method, and the tube wall of the hollow support section and the forming paper and tipping paper wrapping the hollow support section are perforated to form ventilation holes to introduce air. However, this method has the following problems: 1. Online laser drilling has high requirements for the material and thickness of the tube wall of the hollow support, and the material of the tube wall of the hollow support must not be damaged during online laser drilling, and the tube wall of the hollow support must not be particularly thick so that it is not impossible to drill during online laser drilling; 2. Online laser drilling has high requirements for laser power, and if the laser drilling device cannot drill the tube wall of the hollow support, problems such as defective production of heated cigarettes and excessively high smoke temperature will occur; 3. Currently, the hollow support and the forming paper and tipping paper wrapped around the hollow support are drilled to form air holes, so that the outside air directly enters the inside of the hollow support through the air holes, and the speed at which air is introduced through the air holes is high, and the contact area between the introduced air and the smoke is limited and cannot be mixed uniformly. This increases the amount of smoke drawn into the smoker's mouth, but the smoke concentration is low and a large amount of air is mixed into the smoke, significantly reducing the smoking quality.

In addition, when the tube wall of a heated tobacco product is ventilated using physical perforation, there is a problem in that the amount of ventilation cannot be adjusted and the ventilation position is fixed. When air is introduced through physical perforation, ambient air is introduced through the perforation to lower the temperature, and the amount of ventilation is determined by the size of the perforation. However, as the material of the smoke-emitting part or the corresponding smoking implement changes, it becomes desirable to be able to adjust the degree of ventilation and the ventilation position of the heated tobacco product.

Therefore, there is a demand for a heated tobacco product that can adjust the amount and degree of ventilation to ensure the amount of smoke produced and the quality of the smoke while ensuring a temperature-lowering effect on the smoke.

The present invention is presented to resolve the above problems.

The first aspect of the present invention is a cigarette having a smoke generating section 1 and a heated tobacco filter having a natural ventilation function, both of which are wrapped together with a forming paper 4, and further having a tipping paper 5 in at least a partial area outside the forming paper 4 wrapping the heated tobacco filter having a natural ventilation function;
The heated tobacco filter having a natural ventilation function from the distal lip end to the proximal lip end is provided with a smoke extraction section 2 and a filter plug section 3 in that order, and the smoke extraction section 2 itself has a ventilation function, so that outside air can enter the inside of the heated tobacco through the smoke extraction section 2;
The tipping paper 5 is wound around only a part of the smoke extraction section 2, and the tipping paper 5 is not wound around at least a partial area of the smoke extraction section 2 close to the smoke generating section 1, and only the forming paper 4 is wound around the outside of the partial area.
The forming paper 4 is breathable, the tipping paper 5 is non-breathable, and the length and position of the tipping paper 5 are adjustable, thereby providing a heated tobacco in which the air permeability and ventilation position of the tube wall are adjustable.

Preferably, the smoke extraction section 2 is a hollow structure including a tube wall 21 and a hollow section 22, and the tube wall 21 does not need to be perforated and has a ventilation function by itself, has a vent hole in the tube wall 21, and outside air can enter the hollow section 22 through the vent hole in the tube wall 21. Here, the cross-sectional area of the hollow section 22 is not limited to a circle, and may be any shape such as a triangle, a polygon, or a star.

Preferably, the tipping paper 5 covers 1/6 to 5/6 of the axial length of the smoke extraction section 2.

Preferably, the air permeability of the molding paper 4 is 1000 to 10000 CU.

Preferably, the tube wall 21 is formed by bonding particles and pressing them together, and the voids between the particles after molding become air holes, so that the tube wall 21 itself has a ventilation function.
The particle size of the particles is 200 to 25,000 μm, and after the particles form the wall of the hollow tube, the thickness of the tube wall 21 is 1.0 to 2.0 mm, gaps between the particles in the tube wall 21 are dispersed, and the porosity is 50 to 80%.

Preferably, the particles are selected from organic particles or inorganic particles, the inorganic particles include aluminum oxide, zirconium oxide, calcium carbonate, glass beads, silicon dioxide, iron, copper, aluminum, gold, platinum, spherical magnesium silicate, or calcium sulfate, and the organic particles include at least one of cellulose acetate, cellulose acetate propionate, cellulose acetate butyrate, microcrystalline cellulose, sucrose powder, dextrin, lactose, sugar powder, glucose, mannitol, starch, methylcellulose, ethylcellulose, polylactic acid, polyethylene, polypropylene, polyhydroxybutyric acid, poly-ε-caprolactone, polyglycolic acid, polyhydroxyalkanoate, and starch-based thermoplastic resin.

Preferably, the interparticle binder comprises at least one of polyethylene, polypropylene, polylactic acid, polyolefin, polyester, polyamide, polyvinyl polyacrylate, polytetrafluoroethylene, polyether ether ketone, polyethylene terephthalate, polybutylene terephthalate, polycyclohexylene dimethylene terephthalate, polytrimethylene terephthalate, polyacrylic, polymethyl methacrylate, acrylonitrile-butadiene-styrene, styrene-acrylonitrile, styrene-butadiene, styrene-maleic acid, cellulose acetate, cellulose acetate butyrate, plasticized cellulose plastic, cellulose propionate, ethyl cellulose, any derivatives thereof, any copolymers thereof, and any combinations thereof.

Preferably, the tube wall 21 is cellulose acetate tow, in which case the filling amount of the cellulose acetate tow is regular, and after the cellulose acetate tow forms the tube wall of the hollow tube, the thickness of the tube wall 21 is 1.0 to 3.0 mm. In this case, the filling amount of the cellulose acetate tow is regular, meaning that when the filter has a circumference of 19.8 mm, 2,000 to 4,500 filaments are filled.

Preferably, the tube wall 21 is a breathable ceramic.

In other words, in the structure of this heated cigarette, the forming paper 4 fulfills two roles: (1) winding the smoke extraction section 2 and the filter plug section 3 together to form a heated cigarette filter with a natural ventilation function; and (2) winding the heated cigarette filter with a natural ventilation function and the smoke generating section 1 together to form a heated cigarette. The tipping paper does not fulfill the role of winding, but rather controls the ventilation amount and ventilation position of the smoke extraction section 2 by controlling the length of the tipping paper, and also fulfills the role of printing patterns, logos, etc.

The second aspect of the present invention provides a method for adjusting the air permeability and ventilation position of a heated tobacco, as described in the first aspect of the present invention, by adjusting the size and position of the area of the tipping paper 5 that covers the smoke extraction section 2 to adjust the air permeability and ventilation position of the smoke extraction section 2, thereby adjusting the air permeability and ventilation position of the heated tobacco.

In addition, the heated tobacco filter with natural ventilation function of the present invention is not limited to having only the smoke extraction section 2 and the filter plug section 3, and may have a ternary composite structure and further include other functional sections such as a support section, a temperature reducing section, and a flavor enhancing section according to actual needs.
Effect of the invention

Compared with the prior art, the beneficial effects of the present invention are as follows:
1. The heated cigarette of the present invention, in which the air permeability and ventilation position of the tube wall can be adjusted, is provided with a smoke extraction section 2 which itself has a ventilation function, and outside air can enter the inside of the heated cigarette through the smoke extraction section 2, and the tipping paper 5 wraps only a part of the smoke extraction section 2, and the tipping paper 5 is not wrapped around the outside of the partial region of the smoke extraction section 2 close to the smoke generating section 1, and only the forming paper 4 is wrapped around it, and the forming paper 4 is breathable and the tipping paper 5 is non-breathable, and the length and position of the tipping paper 5 are adjustable, so that the size and position of the region covering the smoke extraction section 2 of the tipping paper 5 are adjusted to adjust the air permeability and ventilation position of the smoke extraction section 2, thereby adjusting the air permeability and ventilation position of the heated cigarette. The cigarette structure of the present invention can more flexibly control the amount of air permeation and ventilation position of the smoke extraction section 2 by controlling the length of the tipping paper 5.
2. The heated cigarette filter with natural ventilation function of the present invention is equipped with a smoke extraction section 2, and the tube wall 21 of the smoke extraction section 2 does not need to be perforated, but has a ventilation function by itself, and has ventilation holes in the tube wall 21, so that outside air can enter the hollow section 22 through the ventilation holes in the tube wall 21. In other words, the tube wall 21 itself has gaps and has the effect of natural ventilation. When used in combination with the forming paper 4 and the tipping paper 5, the tube wall of the temperature-reducing section can be ventilated, and outside air can enter the interior of the heated cigarette through the gaps and mix with the smoke, thereby achieving the purpose of introducing air into the interior of the heated cigarette. Since there is no need to perforate, problems caused by perforation of the tube wall 21 of the smoke extraction section 2 are prevented.
3. In a preferred embodiment of the present invention, the tube wall 21 is formed by pressing particles together, and the gaps between the particles after molding play the role of natural ventilation. After the particles form a hollow tube, the gaps between the particles in the tube wall are dispersed. Compared with directly perforating the temperature-reducing section, in the present invention, the air introduced into the particulate smoke extraction section is more dispersed, and the temperature reduction is achieved by the amount of air introduced, and the air can be introduced evenly into the heated tobacco, so that the introduced air and smoke are mixed evenly. In the prior art, perforation is used only to ensure that a large amount of air is introduced to achieve the temperature-reducing effect, but the air and smoke cannot be mixed evenly, which solves the problem of poor smoke quality.
4. When the particles are used as the solid temperature-reducing part, the temperature-reducing effect is excellent, but in order for the smoke to reach the filter and be inhaled by the smoker, it is necessary for the smoke to pass through the gaps of the particles in the solid temperature-reducing part, which increases the amount of smoke adsorbed by the solid temperature-reducing part. In the present invention, the temperature of the smoke is reduced by introducing air, and the selection of the particle material is also very important, and the particle material of the present invention is selected from materials that have a temperature-reducing effect, so that when the smoke passes through, the material of the pipe wall of the smoke extraction part can also play a role in reducing the temperature of the smoke.
5. In a preferred embodiment of the present invention, the tube wall 21 is cellulose acetate tow, which is not the cellulose acetate tow used for conventional filters, but the cellulose acetate tow used for the tube wall 21 in the present invention is regular tow, so that the cellulose acetate tow itself has voids and is breathable like a mesh screen. Compared with directly perforating the temperature-reducing section, in the present invention, the air introduced into the smoke extraction section made of cellulose acetate tow is more dispersed, and the temperature is reduced by the amount of air introduced, and the air can be introduced uniformly into the heated tobacco, so that the introduced air and smoke are mixed uniformly. In the prior art, perforation is used to ensure that a large amount of air is introduced to achieve the temperature-reducing effect, but the air and smoke cannot be mixed uniformly, which solves the problem of poor smoke quality.
6. In a preferred embodiment of the present invention, the tube wall 21 may be made of breathable ceramic, which has a natural ventilation function and also plays a supporting role.

FIG. 2 is a structural schematic diagram showing the actual effect of the smoke extraction section in the heated tobacco product of Example 1, in which the tube wall of the smoke extraction section 2 is formed by pressing particles bonded together. 1 is a structural schematic diagram showing the theoretical effect of the smoke extraction section in the heated tobacco product of Example 1. FIG. 1 is a schematic diagram of the structure of a heated tobacco product according to a first embodiment of the present invention; FIG. 2 is a schematic diagram of the structure of the heated tobacco product of Example 2.

The present invention will now be described in detail with reference to examples.

Those skilled in the art will appreciate that the following examples are intended to illustrate the present invention and are not intended to limit the scope of the present invention. If specific techniques or conditions are not specified in the examples, they are performed in accordance with techniques or conditions described in the literature or product instructions in the field. If the manufacturer of the materials or equipment used is not specified, they are all common products available for purchase.

Those skilled in the art will understand that the singular forms "a", "one", "said" and "the" as used herein can include the plural, unless otherwise specified. Furthermore, it should be understood that the term "comprising" as used in the present specification refers to the presence of stated features, integers, steps, operations, elements and/or components, but does not exclude the presence or addition of one or more other features, integers, steps, operations, elements, components and/or groups thereof. It should be understood that when an element is referred to as being "connected" to another element, it may be directly connected to the other element or there may be intervening elements. Also, as used herein, "connection" may include wireless connections.

In the description of the present invention, unless otherwise stated, "plurality" means two or more. The orientations or status relationships indicated by terms such as "in," "up," "down," etc. are based on the orientations or status relationships shown in the drawings and are merely for ease and simplification of the description of the present invention, and are not to be understood as limiting the present invention, as they do not indicate or suggest that the devices or elements referred to have a particular orientation, must be configured and operate in a particular orientation.

In the description of the present invention, unless otherwise clearly specified or limited, the terms "attached," "connected," "provided," and the like should be understood in a broad sense. For example, they may be fixedly connected, detachably connected, or integrally connected. They may also be mechanically connected or electrically connected. They may also be directly connected or indirectly connected via an intermediate member. Those skilled in the art will be able to understand the specific meaning of the above terms in the present invention according to the specific situation.

Those skilled in the art will understand that, unless otherwise defined, all terms used herein (including technical and scientific terms) have the same meaning as commonly understood by those skilled in the art. Furthermore, it will be understood that terms as defined in commonly used dictionaries should be understood to have a meaning consistent with the meaning in the context of the prior art, and should not be interpreted in an idealized or overly formal sense unless defined herein.

Example 1
As shown in Figures 1 to 3, the heated tobacco sample 1 of this embodiment, in which the air permeability and ventilation position of the tube wall can be adjusted, comprises a smoke generating section 1 and a heated tobacco filter having a natural ventilation function, both of which are wrapped together with a forming paper 4, and further comprises a tipping paper 5 on the outside of the forming paper 4 wrapping the heated tobacco filter having a natural ventilation function.
The heated tobacco filter having a natural ventilation function from the distal lip end to the proximal lip end is provided with a smoke extraction section 2 and a filter plug section 3 in that order, and the smoke extraction section 2 itself has a ventilation function, so that outside air can enter the inside of the heated tobacco through the smoke extraction section 2;
The tipping paper 5 is wound around only a part of the smoke extraction section 2, and the tipping paper 5 is not wound around the outside of the partial region of the smoke extraction section 2 close to the smoke generating section 1, and only the forming paper 4 is wound around it.
The forming paper 4 is breathable, the tipping paper 5 is non-breathable, and the length and position of the tipping paper 5 are adjustable.
The smoke extraction section 2 is a hollow structure comprising a tube wall 21 and a hollow section 22, and the tube wall 21 does not need to be perforated and has a ventilation function by itself, with a ventilation hole in the tube wall 21, and outside air can enter the hollow section 22 through the ventilation hole in the tube wall 21.
The tipping paper 5 covers half of the axial length of the smoke extraction portion 2. The air permeability of the forming paper 4 is 1000 CU.
The tube wall 21 is formed by compressing and bonding particles together, and the gaps between the particles after molding serve as natural ventilation.
The particle size is 200 to 25,000 μm, and after the particles form the wall of the hollow tube, the thickness of the tube wall 21 is 1.5 mm, and voids are dispersed between the particles in the tube wall 21, with a porosity of 50%. The particles are inorganic aluminum oxide particles. The binder between the particles is polylactic acid.

Example 2
As shown in FIG. 4, the heated tobacco sample 2 of this embodiment, in which the air permeability and ventilation position of the tube wall can be adjusted, comprises a smoke generating section 1 and a heated tobacco filter having a natural ventilation function, both of which are wrapped together with a forming paper 4, and further comprises a tipping paper 5 on the outside of the forming paper 4 wrapping the heated tobacco filter having a natural ventilation function.
The heated tobacco filter having a natural ventilation function from the distal lip end to the proximal lip end is provided with a smoke extraction section 2 and a filter plug section 3 in that order, and the smoke extraction section 2 itself has a ventilation function, so that outside air can enter the inside of the heated tobacco through the smoke extraction section 2;
The tipping paper 5 is wound around only a part of the smoke extraction section 2, and the tipping paper 5 is not wound around the outside of the partial region of the smoke extraction section 2 close to the smoke generating section 1, and only the forming paper 4 is wound around it.
The forming paper 4 is breathable, the tipping paper 5 is non-breathable, and the length and position of the tipping paper 5 are adjustable.
The smoke extraction section 2 is a hollow structure comprising a tube wall 21 and a hollow section 22, and the tube wall 21 does not need to be perforated and has a ventilation function by itself, with a ventilation hole in the tube wall 21, and outside air can enter the hollow section 22 through the ventilation hole in the tube wall 21.
The tipping paper 5 covers 1/3 of the axial length of the smoke extraction section 2 .
The tube wall 21 is cellulose acetate tow, and in this case, the packing amount of the cellulose acetate tow is regular, and after the cellulose acetate tow forms the tube wall of the hollow tube, the thickness of the tube wall 21 is 1.0. In this case, the packing amount of the cellulose acetate tow is regular, and when the filter has a circumference length of 19.8 mm, 2833 filaments are packed.

上の表１から分かるように、サンプル１は、香喫味及び口当たりという２つの指標においてサンプル２よりも優れている。これは、サンプル２の通気量がサンプル１よりも大きいので、導入される空気の量が大きくなり、煙自体の香喫味が低減したからである。したがって、発煙芯材に応じて、煙抽出部の通気量及び通気位置を適当に調整する必要がある。 Example 3
For the heated tobacco sample 1 of Example 1 and the heated tobacco sample 2 of Example 2, a sensory evaluation was conducted by 20 professional sensory evaluators of provincial level or above in accordance with the QYNZY.J07.022-2015 standard, and the average values were calculated from the evaluation scores, which are shown in Table 1 below.

As can be seen from Table 1 above, Sample 1 is superior to Sample 2 in two indices, flavor and mouthfeel. This is because Sample 2 has a larger ventilation volume than Sample 1, so the amount of air introduced is larger and the flavor of the smoke itself is reduced. Therefore, it is necessary to appropriately adjust the ventilation volume and ventilation position of the smoke extraction section depending on the smoke wick material.

1: Smoke generating section 2: Smoke extraction section 3: Filter plug section 4: Forming paper 5: Tipping paper 21: Tube wall 22: Hollow section

Claims (5)

The device comprises a smoke generating section (1) and a heated tobacco filter having a natural ventilation function, the two being wrapped together by a forming paper (4), and further comprises a tipping paper (5) in at least a partial area outside the forming paper (4) wrapping the heated tobacco filter having a natural ventilation function;
The heated tobacco filter having the natural ventilation function includes a smoke extraction section (2) and a filter plug section (3) in this order from the distal lip end to the proximal lip end, and the smoke extraction section (2) itself has a ventilation function, allowing outside air to enter the inside of the heated tobacco through the smoke extraction section (2);
The tipping paper (5) wraps around only a portion of the smoke extraction section (2), and the tipping paper (5) is not wrapped around at least a partial area of the smoke extraction section (2) close to the smoke generating section (1) outside the smoke extraction section (2) and only the forming paper (4) is wrapped around the tipping paper (5), and the tipping paper (5) covers 1/6 to 5/6 of the axial length of the smoke extraction section (2);
The forming paper (4) is breathable, the tipping paper (5) is non-breathable, and the position of the tipping paper (5) is adjustable;
The smoke extraction section (2) is a hollow structure having a tube wall (21) and a hollow portion (22), the tube wall (21) does not need to be perforated and has a ventilation function by itself, and has a ventilation hole in the tube wall (21), and outside air can enter the hollow portion (22) through the ventilation hole in the tube wall (21);
The tube wall (21) is formed by bonding particles and pressing them together, and the voids between the particles after molding become air holes, so that the tube wall (21) itself has an air permeability function.
The heated tobacco has an adjustable air permeability and air permeability position of a tube wall, characterized in that the particles have a particle size of 200 to 25,000 μm, and after the particles form a wall of a hollow tube, the wall has a thickness of 1.0 to 2.0 mm, and gaps between the particles in the wall are dispersed, with a porosity of 50 to 80% . The heated tobacco product according to claim 1, in which the air permeability of the tube wall and the ventilation position are adjustable, is characterized in that the air permeability of the forming paper (4) is 1000 to 10000 CU. 2. The heated tobacco product according to claim 1, wherein the particles are selected from organic particles or inorganic particles, the inorganic particles include aluminum oxide, zirconium oxide, calcium carbonate, glass beads, silicon dioxide, iron, copper, aluminum, gold, platinum, spherical magnesium silicate, or calcium sulfate, and the organic particles include at least one of cellulose acetate, cellulose acetate propionate, cellulose acetate butyrate, microcrystalline cellulose, sucrose powder, dextrin, lactose, sugar powder, glucose, mannitol, starch, methylcellulose, ethylcellulose, polylactic acid, polyethylene, polypropylene, polyhydroxybutyric acid, poly ε-caprolactone, polyglycolic acid, polyhydroxyalkanoate, and starch -based thermoplastic resin. 2. The heated tobacco product according to claim 1, wherein the binder between the particles comprises at least one of polyethylene, polypropylene, polylactic acid, polyolefin, polyester, polyamide, polyvinyl polyacrylate, polytetrafluoroethylene, polyether ether ketone, polyethylene terephthalate, polybutylene terephthalate, polycyclohexylene dimethylene terephthalate, polytrimethylene terephthalate, polyacrylic, polymethyl methacrylate, acrylonitrile-butadiene-styrene, styrene-acrylonitrile, styrene-butadiene, styrene-maleic acid, cellulose acetate, cellulose acetate butyrate, plasticized cellulose plastic, cellulose propionate, ethyl cellulose, any derivative thereof, any copolymer thereof, and any combination thereof. A method for adjusting a heated tobacco having adjustable air permeability and ventilation position of a tube wall as described in claim 1, characterized in that the air permeability and ventilation position of the heated tobacco are adjusted by adjusting the size and position of the area of the tipping paper (5) covering the smoke extraction section (2) to adjust the air permeability and ventilation position of the smoke extraction section (2).

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