JP7426411B2 - Heated cigarette filter with natural ventilation function and heated cigarette containing the same - Google Patents

Description

The present invention belongs to the field of heated cigarettes, and specifically relates to a heated cigarette filter having a natural ventilation function and a heated cigarette containing the same.

As smokers become more health-conscious and demand a more personalized experience from tobacco products, the tobacco industry is developing a variety of heated cigarettes with reduced tar and harmful substances to meet the growing demands of smokers. has been developed. Non-combustion heated cigarettes can satisfy smokers' sensory requirements for tobacco products and provide a healthier smoking experience because the tobacco heating method is different from traditional cigarette products.

Conventional heat-not-burn cigarettes mainly include a smoking core part, a hollow support part, a cooling part, and a filter part to introduce air, increase the ventilation amount, and effectively reduce the temperature of smoke. Usually, the hollow support part of the heated tobacco is perforated by online laser perforation method, and the pipe wall of the hollow support part and the molded paper and chip paper wrapped around the hollow support part are perforated to form ventilation holes to air. However, this method has the following points: 1. Online laser drilling has high requirements for the material and thickness of the pipe wall of the hollow support, and the material of the pipe wall of the hollow support may be damaged during online laser drilling. and the tube wall of the hollow support must not be particularly thick, so as not to become impossible to drill during online laser drilling; 2. Online laser drilling has high requirements for laser power, and the laser drilling equipment If the tube wall of the hollow support cannot be perforated, problems such as manufacturing defects in heated tobacco and excessively high smoke temperature will occur; 3.Currently, the hollow support and the molding that wraps the hollow support By perforating paper and chip paper to form ventilation holes, outside air directly enters the inside of the hollow support through the ventilation holes, and the speed at which air is introduced from the ventilation holes is high, and the introduced air and smoke are Since the contact area with the smoker is limited and cannot be mixed uniformly, the amount of smoke inhaled into the smoker's mouth increases, but the concentration of smoke is low and a large amount of air is mixed in with the smoke, which significantly reduces the quality of smoking. The problem is that the value decreases.

Therefore, there is a need for a heated cigarette filter that can ensure the amount and quality of smoke while ensuring a temperature-lowering effect on smoke.

The present invention is proposed to solve the above problems.

A first aspect of the present invention constitutes a heated tobacco in combination with a smoke generating part 1, and includes a smoke extracting part 2 and a filter plug part 3 in this order from the side close to the smoke generating part 1 to the side close to the lip end, A molded paper 4 and a chip paper 5 are provided on the outside of the smoke extraction part 2 and the filter plug part 3,
The smoke extraction part 2 has a hollow structure including a pipe wall 21 and a hollow part 22, and the pipe wall 21 does not need to be perforated, has a ventilation function itself, and has a ventilation hole in the pipe wall 21. To provide a heated cigarette filter having a natural ventilation function in which outside air can enter a hollow part 22 through a ventilation hole in a pipe wall 21. Here, the cross-sectional area of the hollow portion 22 is not limited to a circular shape, and may be any shape such as a triangle, a polygon, or a star shape.

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

Preferably, the tube wall 21 is formed by bonding particles and press molding, and the voids between the particles after molding become ventilation 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 tube wall of the hollow tube, the thickness of the tube wall 21 is 1.0 to 2.0 mm, and the voids between the particles in the tube wall 21 are are dispersed, and the porosity is 50 to 80%.

Preferably, the particles are selected from organic 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 sulfate. The 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 , polypropylene, polyhydroxybutyric acid, polyε-caprolactone, polyglycolic acid, polyhydroxyalkanoate, and starch-based thermoplastic resin.

Preferably, the interparticle binder is polyethylene, polypropylene, polylactic acid, polyolefin, polyester, polyamide, polyvinyl polyacrylate, 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, It includes any derivative thereof, at least one copolymer thereof, and any combination thereof.

Preferably, the tube wall 21 is cellulose acetate tow, in which 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 It is 1.0 to 3.0 mm. In this case, when the filling amount of cellulose acetate tow is regular, 2000 to 4500 filaments are filled when the circumferential length of the filter is 19.8 mm.

Preferably, the tube wall 21 is a breathable ceramic.

Preferably, the tip paper 5 is further provided with ventilation holes.

Preferably, the tip paper 5 is wrapped around only a part of the smoke extraction section 2, and no tip paper 5 is wrapped around the outside of a partial area of the smoke extraction section 2 on the side closer to the smoke generation section 1. Only the molded paper 4 is wrapped, and in this case, the molded paper 4 is breathable and has the role of forming a heated cigarette by wrapping the smoke generating part 1 and a heated cigarette filter having a natural ventilation function together. The chip paper 5 is non-breathable, and the amount of ventilation of the smoke extraction part 2 can be adjusted by adjusting the size of the area of the chip paper 5 that covers the smoke extraction part 2. . In other words, in the structure of this heating type cigarette, the molded paper 4 (1) forms a heating type cigarette filter having a natural ventilation function by wrapping the smoke extraction part 2 and the filter plug part 3 together; (2) natural ventilation; It plays the role of wrapping two functional heated cigarette filters and the smoke generating part 1 together to form a heated cigarette. The chip paper does not play the role of wrapping, but by controlling the length of the chip paper, the amount and position of ventilation in the smoke extraction section 2 is controlled, and also plays the role of printing patterns, LOGO, etc. .

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

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

Compared with the prior art, the beneficial effects of the present invention are as follows.
1. The heated cigarette filter with natural ventilation function of the present invention is equipped with a smoke extraction part 2, and the pipe wall 21 of the smoke extraction part 2 does not need to be perforated, has a ventilation function itself, and the pipe wall 21 has a ventilation function. 21 has a ventilation hole, and the outside air can enter into the hollow part 22 through the ventilation hole in the tube wall 21. In other words, the tube wall 21 itself has a void and has the effect of natural ventilation. When used in conjunction with molded paper 4 and chipping paper 5, the pipe wall of the cooling section can be ventilated, and the outside air enters the heated tobacco through the gap and mixes with smoke, causing heating. The purpose of introducing air into the interior of the tobacco type cigarette is achieved, and there is no need for perforations, thus preventing problems caused by perforations in the pipe wall 21 of the smoke extraction part 2.
2. In a preferred embodiment of the present invention, the tube wall 21 is formed by bonding particles and pressing, and the voids between the particles after forming play the role of natural ventilation, and after the particles form a hollow tube. , the air gaps between the particles in the pipe wall are dispersed, and compared to directly perforating the cooling part, in the present invention, the air introduced into the smoke extraction part in the form of particles is more dispersed, and the air introduced into the smoke extraction part in the form of particles is more dispersed. In addition to achieving temperature reduction by the amount of air, it is also possible to uniformly introduce air into the heated tobacco, so the introduced air and smoke are evenly mixed. It only ensures that the temperature-lowering effect is achieved, but it solves the problem that air and smoke cannot be mixed uniformly, resulting in poor smoke quality.
3. If the particles are made into a solid temperature-falling part, the temperature-lowering effect is excellent, but in order for the smoke to reach the filter and be sucked into the smoker, it is necessary to pass through the voids of the particles in the solid temperature-falling part. , the amount of smoke adsorbed to the solid cooling part increases. In the present invention, in addition to introducing air to lower the temperature of the smoke, the selection of the particle material is also very important.The particle material of the present invention is selected from materials that have a temperature-lowering effect, so that when the smoke passes through, , the material of the tube wall of the smoke extraction section can play a role in reducing the temperature of the smoke as well.
4. In a preferred embodiment of the present invention, the tube wall 21 is cellulose acetate tow, and the cellulose acetate tow is not the cellulose acetate tow for conventional filters, but the cellulose acetate tow used for the tube wall 21 in the present invention. Since it is a regular tow, the cellulose acetate tow itself has voids and is breathable like a screen door. Compared to directly perforating the temperature-lowering section, in the present invention, the air introduced into the smoke extraction section made of cellulose acetate tow is more dispersed, and the amount of air introduced achieves temperature-lowering, and the heated tobacco Because the air can be introduced uniformly into the air, the introduced air and smoke are evenly mixed, and the conventional technology only ensures that a large amount of air is introduced by drilling to achieve the temperature-lowering effect. However, the problem of air and smoke not being able to mix uniformly and resulting in poor smoke quality has been solved.
5. 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 can also play a supporting role.
6. In a preferred embodiment of the present invention, the tip paper 5 wraps only a part of the smoke extraction section 2, and the tip paper 5 is wrapped around only a part of the smoke extraction section 2 on the side closer to the smoke generation section 1. is not wrapped, but only the molded paper 4 is wrapped, and in this case, the molded paper 4 is breathable, and the smoke generating part 1 and a heating type cigarette filter having a natural ventilation function are wound together. The chipping paper 5 plays a role in configuring the heated tobacco, and is non-breathable. By adjusting the size of the area of the chipping paper 5 that covers the smoke extraction part 2, the ventilation of the smoke extraction part 2 can be improved. Since the amount can be adjusted, the structure of this cigarette allows the amount of ventilation of the smoke extractor 2 to be flexibly controlled 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 tobacco of Example 1, in which the tube wall of the smoke extractor 2 is press-molded with particles bound together. FIG. 2 is a structural schematic diagram showing the theoretical effect of the smoke extractor in the heated tobacco of Example 1. 1 is a schematic structural diagram of a heated tobacco according to Example 1 of the present invention; FIG. FIG. 2 is a schematic structural diagram of a heating type cigarette of Example 2.

Hereinafter, the present invention will be explained in detail with reference to Examples.

Those skilled in the art will understand that the following examples are illustrative of the invention and are not intended to limit the scope of the invention. If specific techniques or conditions are not specified in the examples, the techniques or conditions described in the literature or product instructions are followed. If the manufacturer is not specified for the materials or equipment used, they are common products available for purchase.

Those skilled in the art will appreciate that, as used herein, the singular forms "1," "a," "said," and "the" can also include the plural, unless expressly stated otherwise. . Furthermore, the term "comprising" as used in the specification of the present invention refers to the presence of the stated feature, integer, step, act, element and/or component, but one or more other features, integer It should be understood that this does not exclude the presence or addition of steps, acts, elements, components and/or groups thereof. 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. Additionally, "connection" as used herein may include a wireless connection.

In the description of the present invention, unless otherwise specified, "plurality" means two or more. Orientations or state relationships indicated by terms such as "inside", "above", "below", etc. are based on the orientations or state relationships shown in the drawings, and are intended to facilitate and simplify the explanation of the present invention. It should not be understood as limiting the invention as it does not indicate or imply that the devices or elements referred to must have a particular orientation or be configured or operated in a particular orientation. Shouldn't.

In the description of the present invention, terms such as "attachment", "connection", "provided", etc. should be understood in a broad sense, unless otherwise explicitly defined and limited. For example, they may be fixedly connected, removably connected, or integrally connected. Further, they may be connected mechanically or electrically. Further, they may be connected directly or indirectly via an intermediate member. Those skilled in the art can understand the specific meanings of the above terms in the present invention depending on the specific situation.

It will be understood by those of ordinary skill in the art that, unless otherwise defined, 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. Furthermore, terms as defined in commonly used dictionaries should be understood to have meanings consistent with their meanings in the context of the prior art, and unless otherwise defined herein, ideal or It will also be understood that it should not be interpreted in an overly formal sense.

Example 1
As shown in FIGS. 1 to 3, the heat-not-burn tobacco of this embodiment includes a smoke generating section 1, a smoke extracting section 2, and a filter plug section 3 in this order from the far lip end to the near lip end. and the filter plug part 3 is wrapped with molded paper 4 to constitute a filter, and the filter is wrapped around the smoke generating part 1 with tip paper 5 to constitute a heated cigarette,
The smoke extraction part 2 has a hollow structure including a pipe wall 21 and a hollow part 22, and the pipe wall 21 does not need to be perforated, has a ventilation function itself, and has a ventilation hole in the pipe wall 21. , outside air can enter the hollow part 22 through the vents in the tube wall 21.
The air permeability of the molded paper 4 is 1000 CU, and the air permeability of the chip paper 5 is 200 CU.
The tube wall 21 is formed by bonding particles and press molding, and the voids between the particles after molding play the role of natural ventilation.
The particle size of the particles is 200 to 25000 μm, and after the particles form the tube wall of the hollow tube, the thickness of the tube wall 21 is 1.5 mm, and the voids between the particles in the tube wall 21 are dispersed. The porosity is 50%. The particles are inorganic particles of aluminum oxide. The binder between the particles is polylactic acid.

Example 2
As shown in FIG. 4, the heat-not-burn tobacco of this embodiment includes a smoke generating section 1, a smoke extracting section 2, and a filter plug section 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 forming paper 4, and the chip paper 5 is wrapped around only a part of the smoke extracting part 2, and is placed outside the partial area of the smoke extracting part 2 on the side closer to the smoke generating part 1. In this case, the tip paper 5 is not wrapped and only the molded paper 4 is wrapped, and in this case, the molded paper 4 is breathable, and the smoking part 1 and the heating type cigarette filter having a natural ventilation function are used. The chipping paper 5 is non-breathable, and by adjusting the size of the area of the chipping paper 5 that covers the smoke extraction part 2, the smoke can be removed. The amount of ventilation in the extraction section 2 can be adjusted.
The smoke extraction part 2 has a hollow structure including a pipe wall 21 and a hollow part 22, and the pipe wall 21 does not need to be perforated, has a ventilation function itself, and has a ventilation hole in the pipe wall 21. , outside air can enter the hollow part 22 through the vents in the tube wall 21.
The tube wall 21 is made of 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. It is. In this case, when the filling amount of cellulose acetate tow is regular, when the circumferential length of the filter is 19.8 mm, 2833 filaments are filled.

1: Smoke generation part 2: Smoke extraction part 3: Filter plug part 4: Molded paper 5: Chip paper 21: Pipe wall 22: Hollow part

Claims (7)

In combination with the smoke generating part (1), a heated tobacco is constructed, and the smoke extracting part (2) and the filter plug part (3) are arranged in this order from the side near the smoke generating part (1) to the side near the end of the mouth. comprising a molded paper (4) and a chip paper (5) on the outside of the smoke extraction part (2) and the filter plug part (3);
The smoke extraction part (2) has a hollow structure including a pipe wall (21) and a hollow part (22), the pipe wall (21 ) has a ventilation function, and the pipe wall (21) has a ventilation function. having a vent hole, the outside air can enter the hollow part (22) through the vent hole in the tube wall (21);
The tube wall (21) is formed by bonding particles and press molding, and the voids between the particles after molding become the ventilation holes, so that the tube wall (21) itself can have a ventilation function,
The particle size of the particles is 200 to 25,000 μm, and after the particles form a tube wall of the hollow tube, the tube wall (21) has a thickness of 1.0 to 2.0 mm, and the tube wall (21) has a thickness of 1.0 to 2.0 mm. A heated cigarette filter having a natural ventilation function as set forth in (21), characterized in that the voids between the particles are dispersed and the porosity is 50 to 80%. The molded paper (4) and chip paper (5) are breathable, and the molded paper (4) has an air permeability of 1000 to 10000 CU, and the chip 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 particles are selected from organic particles or inorganic particles, and the inorganic particles are aluminum oxide, zirconium oxide, calcium carbonate, glass beads, silicon dioxide, iron, copper, aluminum, gold, platinum, spherical magnesium silicate, or calcium sulfate. The 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, The natural product according to claim 1, characterized in that it contains at least one of polyethylene, polypropylene, polyhydroxybutyric acid, polyε-caprolactone, polyglycolic acid, polyhydroxyalkanoate, and starch-based thermoplastic resin. A heated cigarette filter with ventilation function. The binder between the particles is polyethylene, polypropylene, polylactic acid, polyolefin, polyester, polyamide, polyvinyl polyacrylate, polytetrafluoroethylene, polyetheretherketone, polyethylene terephthalate, polybutylene terephthalate, polycyclohexylene dimethylene terephthalate, polytrifluoroethylene, etc. Methylene 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, these The heating type cigarette filter having a natural ventilation function according to claim 1, characterized in that it contains at least one kind of a derivative or a copolymer thereof, or any combination thereof. The heated cigarette filter with natural ventilation function according to claim 1, characterized in that the tip paper (5) is further provided with ventilation holes. The chip paper (5) wraps only a part of the smoke extraction section (2), and the outside of a partial area of the smoke extraction section (2) near the smoke generation section (1) is covered with the chip paper (5). The chip paper (5) is not wrapped and only the molded paper (4) is wrapped,
In this case, the molded paper (4) is breathable and plays the role of forming a heated cigarette by wrapping the smoke generating part (1) and the heated cigarette filter having a natural ventilation function together. ,
The tip paper (5) is non-breathable, and by adjusting the size of the area where the tip paper (5) covers the smoke extraction section (2), the smoke extraction section (2) 2. The heated cigarette filter with natural ventilation function according to claim 1, wherein the amount of ventilation can be adjusted. A heated cigarette comprising a heated cigarette filter having a natural ventilation function according to any one of claims 1 to 6.

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