JP2023525416A - Heated cigarette filter with natural ventilation function and heated cigarette including the same - Google Patents

Abstract

A heating type cigarette filter having a natural ventilation function is provided with a smoke extraction part (2) and a filter plug part (3) in this order from the side near the smoke generating part (1) to the side near the lip edge, and the smoke extraction part ( 2) and outside the filter plug part (3) there is a molding paper (4) and a tipping paper (5), the smoke extraction part (2) is a hollow structure with a tube wall (21) and a hollow part (22) , the tube wall (21) does not need to be perforated, and has a ventilation function by itself. It can enter into the hollow portion (22) through the pores. The tube wall (21) of the smoke extraction part (2) has the effect of natural ventilation, and by using it together with the forming paper (4) and the tipping paper (5), the tube wall of the cooling part can be ventilated. As a result, outside air enters the inside of the heated cigarette through the air gap and mixes with the smoke, preventing the problem caused by perforation of the pipe wall of the cooling part. [Selection drawing] Fig. 1

Description

TECHNICAL FIELD The present invention belongs to the field of heat-not-burn cigarettes, and specifically relates to heat-not-burn cigarette filters with natural ventilation and heat-not-burn cigarettes including the same.

With smokers becoming more health conscious and demanding a more personalized tobacco product experience, the tobacco industry has developed a range of heat-not-burn cigarettes with reduced tar and harmful substances to meet the increasing demands of smokers. has been developed. Non-combustion heated tobacco can satisfy a smoker's sensory desire for tobacco products and provide a healthier smoking experience because the tobacco heating method is different from traditional cigarette products.

A conventional heated cigarette mainly comprises a smoking core part, a hollow support part, a cooling part and a filter part. Usually, the hollow support part of the heated cigarette is perforated by an online laser perforation method, and the tube wall of the hollow support part and the molding paper and tipping paper that wraps the hollow support part are perforated to form air vents. 1. Online laser drilling requires 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 is damaged during online laser drilling. And the tube wall of the hollow support part should not be particularly thick so as not to be unpierceable during online laser drilling; 2. Online laser drilling requires high laser power, can not perforate the tube wall of the hollow support, there will be problems such as poor production of heated cigarettes, excessive smoke temperature; By perforating the paper and tipping paper to form the ventilation holes, the outside air directly enters the inside of the hollow support part through the ventilation holes, the speed of introducing air from the ventilation holes is high, and the introduced air and smoke are released. Due to the limited contact area with the smoke and the inability to mix uniformly, the amount of smoke drawn into the smoker's mouth increases, but the smoke concentration is low, the smoke is entrained with a large amount of air, and the smoking quality is greatly reduced. There is a problem that the

Therefore, there is a demand for a heated cigarette filter that can secure the amount of smoke and the quality of the smoke while securing the effect of lowering the temperature of the smoke.

The present invention is presented to solve the above problems.

In the first aspect of the present invention, a heated cigarette is configured in combination with a smoking part 1, and a smoke extraction part 2 and a filter plug part 3 are provided in this order from the side near the smoking part 1 to the side near the lip end, having a molding paper 4 and a tipping paper 5 outside the smoke extraction part 2 and the filter plug part 3;
The smoke extraction part 2 is a hollow structure with a tube wall 21 and a hollow part 22, the tube wall 21 does not need to be perforated, and has a ventilation function by itself, and has ventilation holes in the tube wall 21. 2. To provide a heated cigarette filter with a natural ventilation function that allows outside air to enter the hollow portion 22 through the vent holes in the tube wall 21; Here, the cross-sectional area of the hollow portion 22 is not limited to a circular shape, and may be an arbitrary shape such as a triangle, a polygon, or a star.

Preferably, the forming paper 4 and the tipping paper 5 are breathable, with the forming paper 4 having an air permeability of 1000 to 10000 CU and the tipping paper 5 having an air permeability of 200 to 5000 CU.

Preferably, the tube wall 21 is press-molded with the particles bound together, and the voids between the particles after molding serve as ventilation holes, so that the tube wall 21 itself has a ventilation function,
The particles have a particle size of 200 to 25000 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, and the gap between the particles in the tube wall 21 is are dispersed and the porosity is 50 to 80%.

Preferably, the particles are selected from organic particles or inorganic particles, the inorganic particles being aluminum oxide, zirconium oxide, calcium carbonate, glass beads, silicon dioxide, iron, copper, aluminum, gold, platinum, spherical magnesium silicate or calcium sulphate. Organic particles include cellulose acetate, cellulose acetate propionate, cellulose acetate butyrate, microcrystalline cellulose, sucrose powder, dextrin, lactose, sugar powder, glucose, mannitol, starch, methyl cellulose, ethyl cellulose, polylactic acid, polyethylene , polypropylene, polyhydroxybutyric acid, polyε-caprolactone, polyglycolic acid, polyhydroxyalkanoate, and starch-based thermoplastic resin.

Preferably, the binder between the particles is polyethylene, polypropylene, polylactic acid, polyolefin, polyester, polyamide, polyvinylpolyacrylate, polytetrafluoroethylene, polyetheretherketone, polyethylene terephthalate, polybutylene terephthalate, polycyclohexylenedimethylene 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, It includes any derivative thereof, at least one of any copolymer thereof, and any combination 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 tube wall 21 has a thickness of 1.0 to 3.0 mm. In this case, a regular filling amount of cellulose acetate tow means that 2000 to 4500 filaments are filled when the circumferential length of the filter is 19.8 mm.

Preferably, tube wall 21 is a breathable ceramic.

Preferably, the tipping paper 5 is further perforated with ventilation holes.

Preferably, the tipping paper 5 wraps only a part of the smoke extraction part 2, and the outside of the partial region of the smoke extraction part 2 near the smoke generating part 1 is not wrapped with the tipping paper 5. Only the forming paper 4 is wound, and in this case, the forming paper 4 is breathable, and serves to form a heated cigarette by winding the smoking part 1 and a heated cigarette filter having a natural ventilation function. The tipping paper 5 is impermeable, and by adjusting the size of the area of the tipping paper 5 covering the smoke extraction part 2, the ventilation amount of the smoke extraction part 2 can be adjusted. . In other words, in the structure of this heated cigarette, the forming paper 4 consists of (1) the smoke extracting part 2 and the filter plug part 3 are wound together to form a heated cigarette filter having a natural ventilation function; (2) natural ventilation. The heated cigarette filter and the smoking portion 1 are wound together to form a heated cigarette, which serves as two windings. The tipping paper plays a role of controlling the length of the tipping paper to control the ventilation amount and the ventilation position of the smoke extracting part 2 without playing the role of winding, and printing a pattern, LOGO, etc. .

In addition, the heated cigarette filter with natural ventilation function of the present invention is not limited to having only the smoke extraction part 2 and the filter plug part 3, and may have a ternary composite structure according to actual needs. , a supporting portion, a temperature-lowering portion, a flavor-enhancing portion, and the like may be further added.

A second aspect of the present invention provides a heated cigarette comprising a heated tobacco filter with natural ventilation according to the first aspect of the present invention.

The beneficial effects of the present invention compared to the prior art are as follows.
1. The heated cigarette filter with natural ventilation function of the present invention has a smoke extraction part 2, the pipe wall 21 of the smoke extraction part 2 does not need to be perforated, and has a ventilation function by itself, and the pipe wall 21 has a vent hole, and the outside air can enter the hollow part 22 through the vent hole in the tube wall 21, that is, the tube wall 21 itself has a void and has the effect of natural ventilation. When used in combination with the molding paper 4 and the tipping paper 5, the tube wall of the temperature-lowering part can be ventilated, and the outside air enters the heated tobacco through the air gap and is mixed with the smoke to be heated. The purpose of introducing air into the inside of the cigarette is achieved, and no perforation is required, thus preventing the perforation problem of the pipe wall 21 of the smoke extractor 2 .
2. In the preferred embodiment of the present invention, the tube wall 21 is formed by pressing the particles together, and the voids between the particles after molding play the role of natural ventilation, and the particles form a hollow tube after , the voids between the particles in the tube wall are distributed, and compared to directly perforating the cooling section, in the present invention, the air introduced into the smoke extraction section in the form of particles is more dispersed and the introduced The temperature can be lowered by the amount of air, and the air can be uniformly introduced into the heated tobacco, so that the introduced air and smoke are uniformly mixed. It only ensures that the cooling effect is achieved by introducing it, but solves the problem that the air and smoke cannot be mixed uniformly, resulting in poor smoke quality.
3. When the particles are used as the solid cooling part, the cooling effect is excellent, but in order for the smoke to reach the filter and be inhaled by the smoker, it is necessary to pass through the voids of the particles in the solid cooling part. , the amount of smoke absorbed by the solid temperature-lowering part increases. In the present invention, air is introduced to lower the temperature of the smoke, and the selection of the particle material is also very important. , the material of the tube wall of the smoke extraction section can also play a role in reducing the temperature of the smoke.
4. In a preferred embodiment of the invention, the tube wall 21 is cellulose acetate tow, which is not the cellulose acetate tow for conventional filters, but the cellulose acetate tow used for the tube wall 21 in the present invention. is a regular tow, the cellulose acetate tow itself has voids and is air permeable like a mesh screen door. Compared to directly perforating the cooling section, in the present invention, the air introduced into the smoke extraction section, which is made of cellulose acetate tow, is more distributed, and the amount of air introduced achieves cooling and heat-not-burn tobacco. The air can be uniformly introduced into the pipe, so that the introduced air and smoke are uniformly mixed, and the prior art only ensures that a large amount of air is introduced to achieve the cooling effect by perforating However, it solves the problem that air and smoke cannot be mixed uniformly and the quality of smoke deteriorates.
5. In a preferred embodiment of the present invention, the tube wall 21 can be made of breathable ceramic, which has a natural ventilation function and can also play a supporting role.
6. In a preferred embodiment of the present invention, the tipping paper 5 wraps around only a part of the smoke extraction part 2, and outside the partial area of the smoke extraction part 2 near the smoke generating part 1, the tipping paper 5 is not wrapped, and only the molding paper 4 is wrapped. The tipping paper 5 is non-breathable, and by adjusting the size of the area of the tipping paper 5 covering the smoke extracting part 2, the smoke extracting part 2 can be ventilated. Since the volume is adjustable, this cigarette structure allows flexible control of the ventilation volume of the smoke extractor 2 by controlling the length of the tipping paper 5 .

FIG. 2 is a structural schematic diagram showing the actual effect of the smoke extractor in the heated cigarette of Example 1, and the tube wall of the smoke extractor 2 is press-molded with particles bonded. FIG. 4 is a structural schematic diagram showing the theoretical effect of the smoke extractor in the heated cigarette of Example 1; 1 is a structural schematic diagram of a heated cigarette according to Embodiment 1 of the present invention; FIG. FIG. 2 is a structural schematic diagram of a heated cigarette of Example 2;

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

Those skilled in the art will appreciate that the following examples are intended to illustrate the invention and are not intended to limit the scope of the invention. Unless specific techniques or conditions are specified in the examples, the techniques or conditions described in the literature in the field or product instructions are followed. Materials or equipment used, unless otherwise specified by the manufacturer, are all conventional products available for purchase.

Those skilled in the art will appreciate that the singular forms "one," "one," "said," and "the," as used herein, can also include plural forms unless otherwise stated. . Furthermore, the term "comprising" as used herein refers to the presence of the stated features, integers, steps, acts, elements and/or components, but one or more other features, integers , steps, acts, elements, components and/or groups thereof are not to be excluded. It is to 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. A "connection" as used herein may also include a wireless connection.

In describing the present invention, unless otherwise stated, "plurality" means two or more. Orientation or state relationships indicated by terms such as "inner", "up", "lower" are based on the orientation or state relationships shown in the drawings and are intended to facilitate and simplify the description of the present invention. and does not indicate or imply that the device or element referred to must have a particular orientation, or be configured and operated in a particular orientation, and thus be understood as limiting the invention. shouldn't.

In describing the present invention, terms such as "attached," "connected," "provided," and the like are to be understood broadly, unless explicitly defined and limited to the contrary. For example, it may be fixedly connected, removably connected, or integrally connected. Also, they may be connected mechanically or electrically. Alternatively, they may be directly connected or indirectly connected via an intermediate member. A person skilled in the art can understand the specific meaning of the above terms in the present invention according to the specific situation.

It is understood by those of ordinary skill in the art that, unless defined otherwise, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art. Will. Moreover, terms as defined in commonly used dictionaries are to be understood to have a meaning consistent with their meaning in the context of the prior art, unless otherwise defined herein, ideal or It will also be understood that they should not be construed in an overly formal sense.

Example 1
As shown in FIGS. 1 to 3, the heat-not-burn cigarette of this embodiment has a smoke generating portion 1, a smoke extraction portion 2, and a filter plug portion 3 in that order from the far lip end to the near lip end. and the filter plug part 3 is wrapped with the forming paper 4 to form a filter, and the filter is wrapped with the smoking part 1 with the tipping paper 5 to form a heated cigarette,
The smoke extraction part 2 is a hollow structure with a tube wall 21 and a hollow part 22, the tube wall 21 does not need to be perforated, and has a ventilation function by itself, and has ventilation holes in the tube wall 21. , outside air can enter the cavity 22 through the vent holes in the tube wall 21 .
The air permeability of the forming paper 4 is 1000 CU, and the air permeability of the tipping paper 5 is 200 CU.
The tube wall 21 is press-molded by binding particles, and the voids between the particles after molding play a role of natural ventilation,
The particles have a particle size of 200 to 25000 μm, and after the particles form the wall of the hollow tube, the thickness of the tube wall 21 is 1.5 mm, and the gaps between the particles in the tube wall 21 are dispersed. , and the porosity is 50%. The particles are inorganic particles of aluminum oxide. The binder between particles is polylactic acid.

Example 2
As shown in FIG. 4, the heat-not-burn cigarette of this embodiment has a smoke generating portion 1, a smoke extraction portion 2, and a filter plug portion 3 in this order from the far lip end to the near lip end. The part 3 and the smoke generating part 1 are wrapped with the molding paper 4, and the tip paper 5 wraps only a part of the smoke extracting part 2 and covers the outside of the partial area of the smoke extracting part 2 near the smoke generating part 1. is wrapped with only the molding paper 4, not the tipping paper 5. In this case, the molding paper 4 is breathable, and the heating cigarette filter has a smoke generating part 1 and a natural ventilation function. The tipping paper 5 is impermeable, and by adjusting the size of the area covering the smoke extraction part 2 of the tipping paper 5, the smoke The amount of ventilation of the extraction part 2 can be adjusted.
The smoke extraction part 2 is a hollow structure with a tube wall 21 and a hollow part 22, the tube wall 21 does not need to be perforated, and has a ventilation function by itself, and has ventilation holes in the tube wall 21. , outside air can enter the cavity 22 through the vent holes in the tube wall 21 .
The tube wall 21 is cellulose acetate tow, in this case, the filling amount of 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. is. In this case, a regular filling amount of cellulose acetate tow means that 2833 filaments are filled when the circumferential length of the filter is 19.8 mm.

1: smoke generating part 2: smoke extraction part 3: filter plug part 4: molding paper 5: tipping paper 21: tube wall 22: hollow part

Claims (10)

Combining with a smoking part (1) to constitute a heated cigarette, a smoke extraction part (2) and a filter plug part (3) are provided in this order from the side near the smoking part (1) to the side near the lip edge. , having molding paper (4) and tipping paper (5) outside said smoke extraction part (2) and said filter plug part (3),
The smoke extraction part (2) is a hollow structure comprising a tube wall (21) and a hollow part (22), and the tube wall (21) does not need to be perforated and has a ventilation function by itself. and having a vent hole in the tube wall (21), and external air can enter the hollow part (22) through the vent hole in the tube wall (21), A heated cigarette filter with natural ventilation. The forming paper (4) and the tipping paper (5) are breathable, the forming paper (4) has an air permeability of 1000 to 10000 CU, and the tipping paper (5) has an air permeability of 200 to 5000 CU. The heated cigarette filter with natural ventilation function according to claim 1, characterized in that: The tube wall (21) is press-molded with particles bound together, and the voids between the particles after molding serve as ventilation holes, so that the tube wall (21) itself can have a ventilation function,
The particle size of the particles is 200-25000 μm, and the thickness of the tube wall (21) after forming the tube wall of the hollow tube by the particles is 1.0-2.0 mm, and the tube wall The heated cigarette filter with natural ventilation function according to claim 1, characterized in that the voids between the particles in (21) are dispersed and the porosity is 50-80%. The particles are selected from organic particles or inorganic particles, and 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. Organic particles include cellulose acetate, cellulose acetate propionate, cellulose acetate butyrate, microcrystalline cellulose, sucrose powder, dextrin, lactose, sugar powder, glucose, mannitol, starch, methylcellulose, ethylcellulose, polylactic acid, polyethylene, The natural ventilation function according to claim 3, characterized by comprising at least one of polypropylene, polyhydroxybutyric acid, polyε-caprolactone, polyglycolic acid, polyhydroxyalkanoate, and starch-based thermoplastic resin. A heated cigarette filter having The binder between particles is polyethylene, polypropylene, polylactic acid, polyolefin, polyester, polyamide, polyvinylpolyacrylate, polytetrafluoroethylene, polyetheretherketone, 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 of these and any copolymer thereof, and any combination thereof. The tube wall (21) is cellulose acetate tow, in this case, the filling amount of cellulose acetate tow is regular, and after the cellulose acetate tow forms the tube wall of the hollow tube, the tube wall (21) is The heated cigarette filter with natural ventilation function according to claim 1, characterized in that the thickness is 1.0-3.0 mm. The heated cigarette filter with natural ventilation function according to claim 1, characterized in that said tube wall (21) is made of breathable ceramic material. The heated cigarette filter with natural ventilation function according to claim 1, characterized in that the tipping paper (5) is further provided with ventilation holes. The tipping paper (5) wraps around only a part of the smoke extraction part (2), and the tip The paper (5) is not wrapped and only the forming paper (4) is wrapped,
In this case, the forming paper (4) is breathable and serves to form a heatable cigarette by winding the smoke generating part (1) and the heatable cigarette filter having a natural ventilation function,
The tipping paper (5) is non-breathable, and by adjusting the size of the area covered by the tipping paper (5), the smoke extraction part (2) can be 9. The heated cigarette filter with natural ventilation function according to claim 8, characterized in that the amount of airflow can be adjusted. A heated cigarette comprising the heated cigarette filter having a natural ventilation function according to any one of claims 1-9.

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