CN113197340B - Heating cigarette filter rod with natural ventilation function and heating cigarette comprising same - Google Patents

Heating cigarette filter rod with natural ventilation function and heating cigarette comprising same Download PDF

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Publication number
CN113197340B
CN113197340B CN202110599704.5A CN202110599704A CN113197340B CN 113197340 B CN113197340 B CN 113197340B CN 202110599704 A CN202110599704 A CN 202110599704A CN 113197340 B CN113197340 B CN 113197340B
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China
Prior art keywords
section
pipe wall
natural ventilation
ventilation function
smoke extraction
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CN202110599704.5A
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Chinese (zh)
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CN113197340A (en
Inventor
赵杨
申钦鹏
雷萍
郭丁荣
段沅杏
李源栋
田永峰
李世卫
刘凌璇
杨柳
龚为民
巩效伟
韩熠
赵伟
秦云华
缪明明
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China Tobacco Yunnan Industrial Co Ltd
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China Tobacco Yunnan Industrial Co Ltd
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Priority to CN202110599704.5A priority Critical patent/CN113197340B/en
Priority to PCT/CN2021/098675 priority patent/WO2022252247A1/en
Priority to KR1020217037313A priority patent/KR20220163848A/en
Priority to JP2021568872A priority patent/JP7426411B2/en
Publication of CN113197340A publication Critical patent/CN113197340A/en
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    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24D—CIGARS; CIGARETTES; TOBACCO SMOKE FILTERS; MOUTHPIECES FOR CIGARS OR CIGARETTES; MANUFACTURE OF TOBACCO SMOKE FILTERS OR MOUTHPIECES
    • A24D3/00—Tobacco smoke filters, e.g. filter-tips, filtering inserts; Filters specially adapted for simulated smoking devices; Mouthpieces for cigars or cigarettes
    • A24D3/02—Manufacture of tobacco smoke filters
    • A24D3/0275—Manufacture of tobacco smoke filters for filters with special features
    • A24D3/0279—Manufacture of tobacco smoke filters for filters with special features with tubes
    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24D—CIGARS; CIGARETTES; TOBACCO SMOKE FILTERS; MOUTHPIECES FOR CIGARS OR CIGARETTES; MANUFACTURE OF TOBACCO SMOKE FILTERS OR MOUTHPIECES
    • A24D3/00—Tobacco smoke filters, e.g. filter-tips, filtering inserts; Filters specially adapted for simulated smoking devices; Mouthpieces for cigars or cigarettes
    • A24D3/04—Tobacco smoke filters characterised by their shape or structure
    • A24D3/043—Tobacco smoke filters characterised by their shape or structure with ventilation means, e.g. air dilution
    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24D—CIGARS; CIGARETTES; TOBACCO SMOKE FILTERS; MOUTHPIECES FOR CIGARS OR CIGARETTES; MANUFACTURE OF TOBACCO SMOKE FILTERS OR MOUTHPIECES
    • A24D1/00—Cigars; Cigarettes
    • A24D1/02—Cigars; Cigarettes with special covers
    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24D—CIGARS; CIGARETTES; TOBACCO SMOKE FILTERS; MOUTHPIECES FOR CIGARS OR CIGARETTES; MANUFACTURE OF TOBACCO SMOKE FILTERS OR MOUTHPIECES
    • A24D1/00—Cigars; Cigarettes
    • A24D1/04—Cigars; Cigarettes with mouthpieces or filter-tips
    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24D—CIGARS; CIGARETTES; TOBACCO SMOKE FILTERS; MOUTHPIECES FOR CIGARS OR CIGARETTES; MANUFACTURE OF TOBACCO SMOKE FILTERS OR MOUTHPIECES
    • A24D3/00—Tobacco smoke filters, e.g. filter-tips, filtering inserts; Filters specially adapted for simulated smoking devices; Mouthpieces for cigars or cigarettes
    • A24D3/02—Manufacture of tobacco smoke filters
    • A24D3/0229—Filter rod forming processes
    • A24D3/0241—Filter rod forming processes by compacting particulated materials
    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24D—CIGARS; CIGARETTES; TOBACCO SMOKE FILTERS; MOUTHPIECES FOR CIGARS OR CIGARETTES; MANUFACTURE OF TOBACCO SMOKE FILTERS OR MOUTHPIECES
    • A24D3/00—Tobacco smoke filters, e.g. filter-tips, filtering inserts; Filters specially adapted for simulated smoking devices; Mouthpieces for cigars or cigarettes
    • A24D3/02—Manufacture of tobacco smoke filters
    • A24D3/0275—Manufacture of tobacco smoke filters for filters with special features
    • A24D3/0283—Manufacture of tobacco smoke filters for filters with special features with means for a non-axial smoke flow
    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24D—CIGARS; CIGARETTES; TOBACCO SMOKE FILTERS; MOUTHPIECES FOR CIGARS OR CIGARETTES; MANUFACTURE OF TOBACCO SMOKE FILTERS OR MOUTHPIECES
    • A24D3/00—Tobacco smoke filters, e.g. filter-tips, filtering inserts; Filters specially adapted for simulated smoking devices; Mouthpieces for cigars or cigarettes
    • A24D3/04—Tobacco smoke filters characterised by their shape or structure
    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24D—CIGARS; CIGARETTES; TOBACCO SMOKE FILTERS; MOUTHPIECES FOR CIGARS OR CIGARETTES; MANUFACTURE OF TOBACCO SMOKE FILTERS OR MOUTHPIECES
    • A24D3/00—Tobacco smoke filters, e.g. filter-tips, filtering inserts; Filters specially adapted for simulated smoking devices; Mouthpieces for cigars or cigarettes
    • A24D3/06—Use of materials for tobacco smoke filters
    • A24D3/062—Use of materials for tobacco smoke filters characterised by structural features
    • A24D3/063—Use of materials for tobacco smoke filters characterised by structural features of the fibers
    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24D—CIGARS; CIGARETTES; TOBACCO SMOKE FILTERS; MOUTHPIECES FOR CIGARS OR CIGARETTES; MANUFACTURE OF TOBACCO SMOKE FILTERS OR MOUTHPIECES
    • A24D3/00—Tobacco smoke filters, e.g. filter-tips, filtering inserts; Filters specially adapted for simulated smoking devices; Mouthpieces for cigars or cigarettes
    • A24D3/06—Use of materials for tobacco smoke filters
    • A24D3/08—Use of materials for tobacco smoke filters of organic materials as carrier or major constituent
    • A24D3/10—Use of materials for tobacco smoke filters of organic materials as carrier or major constituent of cellulose or cellulose derivatives
    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24D—CIGARS; CIGARETTES; TOBACCO SMOKE FILTERS; MOUTHPIECES FOR CIGARS OR CIGARETTES; MANUFACTURE OF TOBACCO SMOKE FILTERS OR MOUTHPIECES
    • A24D3/00—Tobacco smoke filters, e.g. filter-tips, filtering inserts; Filters specially adapted for simulated smoking devices; Mouthpieces for cigars or cigarettes
    • A24D3/06—Use of materials for tobacco smoke filters
    • A24D3/14—Use of materials for tobacco smoke filters of organic materials as additive
    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24D—CIGARS; CIGARETTES; TOBACCO SMOKE FILTERS; MOUTHPIECES FOR CIGARS OR CIGARETTES; MANUFACTURE OF TOBACCO SMOKE FILTERS OR MOUTHPIECES
    • A24D3/00—Tobacco smoke filters, e.g. filter-tips, filtering inserts; Filters specially adapted for simulated smoking devices; Mouthpieces for cigars or cigarettes
    • A24D3/06—Use of materials for tobacco smoke filters
    • A24D3/16—Use of materials for tobacco smoke filters of inorganic materials

Abstract

The invention discloses a heated cigarette filter stick with a natural ventilation function, which sequentially comprises a smoke extraction section (2) and a functional filter stick section (3) from one side close to a smoking section (1) to one side close to a lip end, wherein the outer sides of the smoke extraction section (2) and the functional filter stick section (3) are provided with a piece of forming paper (4) and a piece of tipping paper (5); the smoke extraction section (2) is of a hollow structure and comprises a pipe wall (21) and a pipe cavity (22), the pipe wall (21) is not required to be perforated, the smoke extraction section has a ventilation function, vent holes are formed in the pipe wall (21), and outside air can enter the pipe cavity (22) through the vent holes in the pipe wall (21). The pipe wall (21) of the smoke extraction section (2) has a natural ventilation effect, the pipe wall of the cooling section is ventilated by matching with forming paper and tipping paper, and external air enters the heated cigarette through the pores to be mixed with smoke, so that the problem caused by punching the pipe wall of the cooling section is avoided.

Description

Heating cigarette filter rod with natural ventilation function and heating cigarette comprising same
Technical Field
The invention belongs to the field of heated cigarettes, and particularly relates to a heated cigarette filter stick with a natural ventilation function and a heated cigarette comprising the same.
Background
Along with the attention of consumers to health problems and the improvement of the demand of individualized experience of cigarette products, the tobacco industry continuously responds to the demand upgrade of consumers and develops various heating cigarettes with tar and harm reduction. The cigarette heating mode of the non-combustion type cigarette is different from that of the traditional cigarette product, so that the cigarette heating mode can meet the sensory requirements of consumers on the cigarette product and provide healthier smoking experience.
The existing heating cigarette mainly comprises a smoking core material section, a hollow supporting section, a cooling section and a filtering section, wherein the heating cigarette increases ventilation volume and effectively reduces smoke temperature in order to introduce air, a method of online laser drilling is generally adopted to drill a hole in the hollow supporting section of the heating cigarette, and a forming paper and a tipping paper which are used for drilling the pipe wall of the hollow supporting section and wrapping the hollow supporting section are punched to form a ventilation hole to introduce air, but the method still has the following problems: 1. the method has the advantages that the material and the thickness of the pipe wall of the hollow supporting section are high in requirements in the online laser drilling process, firstly, the material of the pipe wall of the hollow supporting section cannot collapse in the online laser drilling process, and the pipe wall of the hollow supporting section cannot be particularly thick, so that the pipe cannot be punched during online laser drilling; 2. the requirement on laser power in the online laser drilling process is high, and if the laser drilling equipment cannot drill the wall of the hollow support section pipe, the problems of unqualified cigarette heating production and overheating smoke temperature can occur; 3. at present, the ventilation hole is formed by penetrating through the hollow supporting section and wrapping the hollow supporting section and the wrapping paper, outside air directly enters the hollow supporting section through the ventilation hole, the air introducing speed of the ventilation hole is high, the contact area of the introduced air and the flue gas is limited, the mixture is not uniform, the flue gas amount sucked into the mouth of a consumer is increased, the flue gas concentration is low, a large amount of air is obviously doped in the flue gas, and the smoking quality is seriously reduced.
Therefore, it is desirable to design a heated cigarette filter stick which can not only ensure the cooling effect of the smoke, but also ensure the smoke quantity and the smoke quality.
The present invention has been made to solve the above problems.
Disclosure of Invention
The invention provides a heating cigarette filter stick with a natural ventilation function, wherein the heating cigarette filter stick with the natural ventilation function and a smoking section 1 are combined to form a heating cigarette, the heating cigarette filter stick with the natural ventilation function sequentially comprises a smoke extraction section 2 and a functional filter stick section 3 from one side close to the smoking section 1 to one side close to a lip end, and forming paper 4 and tipping paper 5 are arranged on the outer sides of the smoke extraction section 2 and the functional filter stick section 3;
the flue gas extraction section 2 is of a hollow structure and comprises a pipe wall 21 and a pipe cavity 22, the pipe wall 21 is not required to be perforated, the pipe wall 21 has a ventilation function, vent holes are formed in the pipe wall 21, and outside air can enter the pipe cavity 22 through the vent holes in the pipe wall 21. The cross-sectional area of the lumen 22 is not limited to a circle, and may be any shape such as a triangle, a polygon, or a pentagram.
Preferably, the forming paper 4 and the tipping paper 5 are air-permeable, and the air permeability of the forming paper 4 is 1000-; the air permeability of the tipping paper 5 is 200-.
Preferably, the pipe wall 21 can be formed by bonding and extruding particles, and pores among the particles after forming are used as vent holes, so that the pipe wall 21 has a ventilation function;
the particle diameter is 200-25000 microns; after the particles form the wall of the hollow tube, the thickness of the tube wall 21 is 1.0-2.0mm, and the pores among the particles in the tube wall 21 are dispersed, and the porosity is 50-80%.
Preferably, the particles are selected from organic particles or inorganic particles, including alumina, zirconia, calcium carbonate, glass beads, silica, iron, copper, aluminum, gold, platinum, magnesium silicate spheres, or calcium sulfate; the organic particles include at least one of cellulose acetate, cellulose acetate propionate, cellulose acetate butyrate, microcrystalline cellulose, sucrose powder, dextrin, lactose, powdered sugar, glucose, mannitol, starch, methyl cellulose, ethyl cellulose, polylactic acid, polyethylene, polypropylene, polyhydroxybutyrate, poly-epsilon-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, polyacrylic polyvinyl, polytetrafluoroethylene, polyetheretherketone, polyethylene terephthalate, polybutylene terephthalate, polycyclohexylenedimethylene terephthalate, polytrimethylene terephthalate, polyacrylates, polymethyl methacrylate, acrylonitrile-butadiene-styrene, styrene-acrylonitrile, styrene-butadiene, styrene-maleic acid, cellulose acetate butyrate, plasticized cellulose plastic, cellulose propionate, ethyl cellulose, any derivative thereof, any copolymer thereof, and any combination thereof.
Preferably, the tube wall 21 is an acetate tow, the filling amount of the acetate tow is a middle branch, and after the acetate tow forms the tube wall of the hollow tube, the thickness of the tube wall 21 is 1.0-3.0 mm. At the moment, the yarn filling amount of the acetate fiber tows is the middle count, and when the size is 19.8mm of the circumference of the filter stick, 2000 yarns and 4500 yarns are filled.
Preferably, the tube wall 21 is a gas-permeable ceramic material.
Preferably, the tipping paper 5 is perforated with air holes.
Preferably, the tipping paper 5 only partially wraps the smoke extraction segment 2, and the forming paper 4 is only arranged on the outer side of a part of the smoke extraction segment 2 close to the smoking segment 1, and the tipping paper 5 is not wrapped; the forming paper 4 is air-permeable and has the function of assembling the smoking section 1 and the heated cigarette filter stick with the natural ventilation function to form a heated cigarette; the tipping paper 5 is air impermeable and the amount of air permeability of the smoke extraction segment 2 can be adjusted by adjusting the size of the area of the tipping paper 5 covering the smoke extraction segment 2. That is, the forming paper 4 in this heated cigarette construction serves two assembly functions: (1) assembling the smoke extraction section 2 and the functional filter rod section 3 to form the heated cigarette filter rod with the natural ventilation function; (2) and assembling the heated cigarette filter stick with the natural ventilation function and the smoking section 1 to form the heated cigarette. And connect dress paper and do not play the assembly effect, it lies in that the control connects the length of dress paper and control the ventilative volume and the ventilative position of flue gas extraction section 2, connects dress paper simultaneously and still plays conventional effects such as stamp line seal LOGO.
In addition, the heating cigarette filter stick with the natural ventilation function is not limited to only comprise the smoke extraction section 2 and the functional filter stick section 3, and the heating cigarette filter stick can also be of a ternary composite structure according to actual requirements, and can be added with other functional sections such as a support section, a cooling section, an aroma enhancement section and the like.
In a second aspect, the invention provides a heated cigarette comprising the heated cigarette filter rod with natural ventilation function of the first aspect of the invention.
Compared with the prior art, the invention has the following beneficial effects:
1. the heating cigarette filter stick with the natural ventilation function comprises a smoke extraction section 2, wherein the pipe wall 21 of the smoke extraction section 2 is not required to be perforated, the pipe wall 21 has a ventilation function, ventilation holes are formed in the pipe wall 21, external air can enter a pipe cavity 22 through the ventilation holes in the pipe wall 21, namely, the pipe wall 21 is provided with holes, the natural ventilation effect is achieved, the forming paper 4 and the tipping paper 5 are matched to enable the pipe wall of a cooling section to be ventilated, the external air enters the interior of a heating cigarette through the holes to be mixed with smoke, the purpose of introducing air into the interior of the heating cigarette is achieved, and the problem caused by perforation of the pipe wall 21 of the smoke extraction section 2 is avoided without perforation.
2. In the preferred embodiment of the present invention, the tube wall 21 can be formed by bonding and extruding particles, and the pores between the particles after forming play a natural ventilation role; after the particles form the hollow tube, the pores among the particles in the tube wall are dispersed, and compared with the method of directly punching the cooling section, the method has the advantages that the air introduced by the particle-form smoke extraction section is more dispersed, the introduced air quantity is ensured to be cooled, and simultaneously, the air can be uniformly introduced into the heated cigarette, so that the introduced air and the smoke are mixed more uniformly, and the problems of nonuniform air and smoke mixing and poor smoke quality caused by the fact that a large amount of air is introduced to achieve the cooling effect as the conventional punching method is solved.
3. If regard as solid cooling stick with the granule, though the cooling is effectual, the filter tip can only be reached in the granule space that the flue gas will pass through in the solid cooling stick for the consumer smokes, leads to solid cooling stick too big again to the adsorption capacity of flue gas like this. The particle material is selected from materials with a cooling effect, and the wall material of the pipe at the smoke extraction section can also play a role in reducing the smoke temperature when smoke passes through.
4. In the preferred embodiment of the invention, the tubular wall 21 is a cellulose acetate tow that is not a conventional cellulose acetate tow used in filters, and in the present invention the cellulose acetate tow used in the tubular wall 21 is medium-branched, which makes the cellulose acetate tow itself porous and air-permeable, as is the case with a meshed window screen. Compared with the method for directly punching the cooling section, the method for punching the acetate tow smoke extraction section has the advantages that the air introduced by the acetate tow smoke extraction section is more dispersed, the introduced air quantity is ensured to be cooled, and meanwhile, the air can be uniformly introduced into the heated cigarette, so that the introduced air and the smoke are more uniformly mixed, and the problems that the air and the smoke are not uniformly mixed and the smoke quality is poor due to the fact that a large amount of air is introduced to achieve the cooling effect as in the prior punching are solved.
5. In a preferred embodiment of the present invention, the tube wall 21 may also be made of a gas-permeable ceramic material, which may also serve as a support in case of its own gas-permeable function.
6. In a preferred embodiment of the invention, the tipping paper 5 only partially wraps the smoke extraction segment 2, and the forming paper 4 only partially outside a side region of the smoke extraction segment 2 close to the smoking segment 1 is not wrapped by the tipping paper 5; the forming paper 4 is air-permeable and has the function of assembling the smoking section 1 and the heated cigarette filter stick with the natural ventilation function to form a heated cigarette; connect dress paper 5 to be airtight, can be through the adjustment connect dress paper 5 to cover the size adjustment that 2 regions were drawed to the flue gas section of 2 ventilative volume, this cigarette structure can connect the control that the length of dress paper 5 is more nimble through the control the flue gas draws section of 2 ventilative volume.
Drawings
FIG. 1 is a schematic view of an actual effect structure of a smoke extraction section in the heated cigarette of embodiment 1; wherein the pipe wall of the flue gas extraction section 2 is formed by bonding and extrusion of particles;
FIG. 2 is a schematic structural view of the theoretical effect of the smoke extraction section in the heated cigarette of example 1;
FIG. 3 is a schematic view of a heating cigarette in embodiment 1 of the present invention;
FIG. 4 is a schematic view of the structure of the heated cigarette of example 2;
the names of the reference symbols are: 1-smoking section, 2-smoke extraction section, 3-functional filter rod section, 4-forming paper and 5-tipping paper; 21-vessel wall, 22-vessel cavity.
Detailed Description
The present invention will be described in further detail with reference to examples.
It will be appreciated by those skilled in the art that the following examples are illustrative of the invention only and should not be taken as limiting the scope of the invention. The examples do not specify particular techniques or conditions, and are performed according to the techniques or conditions described in the literature in the art or according to the product specifications. The materials or equipment used are not indicated by manufacturers, and all are conventional products available by purchase.
As used herein, the singular forms "a", "an", "the" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof. It will be understood that when an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. Further, "connected" as used herein may include wirelessly connected.
In the description of the present invention, "a plurality" means two or more unless otherwise specified. The terms "inner," "upper," "lower," and the like, refer to an orientation or a state relationship based on that shown in the drawings, which is for convenience in describing and simplifying the description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the invention.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "provided" are to be construed broadly, e.g., as being fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. To those of ordinary skill in the art, the specific meanings of the above terms in the present invention are understood according to specific situations.
It will be understood by those skilled 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 to which this invention belongs. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the prior art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.
Example 1
Referring to fig. 1-3, the present embodiment is a heated cigarette, which comprises a smoking section 1, a smoke extraction section 2 and a functional filter rod section 3 in sequence from a far lip end to a near lip end, wherein the smoke extraction section 2 and the functional filter rod section 3 are wrapped by a forming paper 4 to form a filter rod, and the filter rod is wrapped with the smoking section 1 by a tipping paper 5 to form a heated cigarette;
the flue gas extraction section 2 is of a hollow structure and comprises a pipe wall 21 and a pipe cavity 22, the pipe wall 21 is not required to be perforated, the pipe wall 21 has a ventilation function, vent holes are formed in the pipe wall 21, and outside air can enter the pipe cavity 22 through the vent holes in the pipe wall 21.
The air permeability of the formed paper 4 was 1000 CU; the tipping paper 5 has an air permeability of 200 CU.
The pipe wall 21 is formed by bonding and extruding particles, and pores among the particles after forming play a natural ventilation role;
the particle diameter is 200-25000 microns; after the particles form the wall of the hollow tube, the thickness of the wall 21 is 1.5mm, and the pores among the particles in the wall 21 are dispersed, and the porosity is 50%. The particles are selected from inorganic particulate alumina. The binder between the particles is polylactic acid.
Example 2
Referring to fig. 4, the present embodiment is a heated cigarette, which comprises a smoking section 1, a smoke extraction section 2 and a functional filter rod section 3 in sequence from a far lip end to a near lip end, wherein the smoke extraction section 2, the functional filter rod section 3 and the smoking section 1 are wrapped by a forming paper 4, the tipping paper 5 only partially wraps the smoke extraction section 2, and a part of the smoke extraction section 2 close to the smoking section 1 is only provided with the forming paper 4 outside and is not wrapped by the tipping paper 5; the forming paper 4 is air-permeable and has the function of assembling the smoking section 1 and the heated cigarette filter stick with the natural ventilation function to form a heated cigarette; the tipping paper 5 is air impermeable and the amount of air permeability of the smoke extraction segment 2 can be adjusted by adjusting the size of the area of the tipping paper 5 covering the smoke extraction segment 2.
The flue gas extraction section 2 is of a hollow structure and comprises a pipe wall 21 and a pipe cavity 22, the pipe wall 21 is not required to be perforated, the pipe wall 21 has a ventilation function, vent holes are formed in the pipe wall 21, and outside air can enter the pipe cavity 22 through the vent holes in the pipe wall 21.
The pipe wall 21 is made of acetate fiber tows; the pipe wall 21 is made of acetate fiber tows, the filling amount of the acetate fiber tows is the middle branch, and after the acetate fiber tows form the pipe wall of the hollow pipe, the thickness of the pipe wall 21 is 1.0 mm. The filling amount of the acetate tow is middle count, and 2833 filaments are filled when the size is 19.8mm of the circumference of the filter stick.

Claims (7)

1. A heating cigarette filter stick with a natural ventilation function is characterized in that the heating cigarette filter stick with the natural ventilation function and a smoking section (1) are combined to form a heating cigarette, the heating cigarette filter stick with the natural ventilation function sequentially comprises a smoke extraction section (2) and a functional filter stick section (3) from one side close to the smoking section (1) to one side close to a lip end, and the outer sides of the smoke extraction section (2) and the functional filter stick section (3) are provided with a piece of forming paper (4) and a piece of tipping paper (5);
the smoke extraction section (2) is of a hollow structure and comprises a pipe wall (21) and a pipe cavity (22), the pipe wall (21) does not need to be perforated and has a ventilation function, vent holes are formed in the pipe wall (21), and outside air can enter the pipe cavity (22) through the vent holes in the pipe wall (21);
the pipe wall (21) can be formed by bonding and extrusion of particles, and pores among the formed particles are used as vent holes, so that the pipe wall (21) has a ventilation function;
the particle diameter is 200-25000 microns; after the particles form the wall of the hollow tube, the thickness of the tube wall (21) is 1.0-2.0mm, and the pores among the particles in the tube wall (21) are dispersed, and the porosity is 50-80%.
2. The filter stick of the heated cigarette with the natural ventilation function as claimed in claim 1, wherein the forming paper (4) and the tipping paper (5) are ventilated, and the ventilation degree of the forming paper (4) is 1000-10000 CU; the air permeability of the tipping paper (5) is 200-5000 CU.
3. A heated cigarette filter rod 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 comprise aluminum oxide, zirconium oxide, calcium carbonate, glass beads, silicon dioxide, iron, copper, aluminum, gold, platinum, magnesium silicate spheres or calcium sulfate; the organic particles include at least one of cellulose acetate, cellulose acetate propionate, cellulose acetate butyrate, microcrystalline cellulose, sucrose powder, dextrin, lactose, powdered sugar, glucose, mannitol, starch, methyl cellulose, ethyl cellulose, polylactic acid, polyethylene, polypropylene, polyhydroxybutyrate, poly-epsilon-caprolactone, polyglycolic acid, polyhydroxyalkanoate, and starch-based thermoplastic resin.
4. A heated cigarette filter rod with natural ventilation according to claim 1 wherein the binder between the particles comprises: polyethylene, polypropylene, polylactic acid, polyolefin, polyester, polyamide, polyacrylic polyvinyl compound, polytetrafluoroethylene, polyetheretherketone, polyethylene terephthalate, polybutylene terephthalate, polycyclohexylenedimethylene terephthalate, polytrimethylene terephthalate, polyacrylate, polymethyl methacrylate, acrylonitrile-butadiene-styrene, styrene-acrylonitrile, styrene-butadiene, styrene-maleic acid, cellulose acetate butyrate, plasticized cellulose plastic, cellulose propionate, ethyl cellulose, derivatives thereof, or copolymers thereof.
5. The filter stick of the heated cigarette with the natural ventilation function as claimed in claim 1, characterized in that the tipping paper (5) is perforated with ventilation holes.
6. A heated cigarette filter rod with natural ventilation according to claim 1, characterized in that the tipping paper (5) only partially wraps the smoke extraction segment (2), the smoke extraction segment (2) has only the forming paper (4) outside a side part area close to the smoking segment (1), and the tipping paper (5) is not wrapped;
the forming paper (4) is air-permeable and has the function of assembling the smoking section (1) and the heating cigarette filter stick with the natural ventilation function to form a heating cigarette;
the tipping paper (5) is air impermeable and the amount of air permeability of the smoke extraction segment (2) can be adjusted by adjusting the size of the area of the tipping paper (5) covering the smoke extraction segment (2).
7. A heated cigarette comprising the heated cigarette filter rod having a natural ventilation function according to any one of claims 1 to 6.
CN202110599704.5A 2021-05-31 2021-05-31 Heating cigarette filter rod with natural ventilation function and heating cigarette comprising same Active CN113197340B (en)

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CN202110599704.5A CN113197340B (en) 2021-05-31 2021-05-31 Heating cigarette filter rod with natural ventilation function and heating cigarette comprising same
PCT/CN2021/098675 WO2022252247A1 (en) 2021-05-31 2021-06-07 Heated cigarette filter rod having natural ventilation function and heated cigarette comprising same
KR1020217037313A KR20220163848A (en) 2021-05-31 2021-06-07 Heated cigarette filter rod equipped with a natural ventilation function and heated cigarette including the same
JP2021568872A JP7426411B2 (en) 2021-05-31 2021-06-07 Heated cigarette filter with natural ventilation function and heated cigarette containing the same

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CN113197340A (en) 2021-08-03

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