SIDEWALL-PUNCTURED HEATED TOBACCO PRODUCT

Abstract

A sidewall-punctured heated tobacco product (9), comprising a tobacco section (1) and a functional mouthpiece rod section (3). A vapor extraction section (2) is provided between the tobacco section (1) and the functional mouthpiece rod section (3). The tobacco section (1), the vapor extraction section (2), and the functional mouthpiece rod section (3) are wrapped and connected together by means of external wrapping and tipping materials. The vapor extraction section (2) is a cylinder comprising a hollow structure (2-1), and at least one sidewall through hole (2-2) communicated with the hollow structure (2-1) is formed on the sidewall of the cylinder. In use, the tobacco product (9) is inserted into a closed heating smoking set, and during vaping, vapor generated by the tobacco section (1) is mixed, after active migration, with air entering from the sidewall through hole (2-2) to form mainstream vapor. The tobacco product (9) can conveniently adjust the extraction efficiency, dilution rate, and temperature of vapor, thereby improving the organoleptic qualities of the heated tobacco product (9), and can effectively prevent cold air from passing through the tobacco section (1) during a vaping process, thus improving the heating efficiency, and effectively reducing the content of oxygen of the tobacco section (1) to achieve a heat-not-burn purpose. In addition, the tobacco product (9) is simple in structure and easy for industrial production.

Claims

1. A heated tobacco product with a perforated sidewall, comprising a tobacco section (1) and a functional tip section (3), characterized in that, a smoke extracting section (2) is arranged between said tobacco section (1) and said functional tip section (3), the tobacco section (1), the smoke extracting section (2) and the functional tip section (3) are wrapped and connected together by an external rolling material, said smoke extracting section is a cylinder with a cavity structure (2-1), at least one sidewall through hole (2-2) communicated with the cavity structure (2-1) is opened on a side wall of the cylinder, and a coaxial through hole (4-1) is provided on the external rolling material (4) at a position corresponding to the sidewall through hole (2-2).

2. The heated tobacco product with the perforated sidewall as claimed in claim 1, characterized in that, said cavity structure (2-1) has a through column structure, and the section of the through column structure has a regular shape or an irregular shape such as circular, regular hexagon, hexagon, pentagon, heart shape, and so on.

3. The heated tobacco product with the perforated sidewall as claimed in claim 1, characterized in that, said cavity structure (2-1) has an annular platform typed through cavity formed by sections with different diameters.

4. The heated tobacco product with the perforated sidewall as claimed in claim 1, characterized in that, said cavity structure (2-1) is composed of a plurality of channels evenly distributed penetrating in an axial direction, and the number and the diameter of the channels can be adjusted according to the need.

5. The heated tobacco product with the perforated sidewall as claimed in claim 1, characterized in that, the included angle between the sidewall through hole (2-2) and the central axis of the cavity structure (2-1) is 90-150.

6. The heated tobacco product with the perforated sidewall as claimed in claim 1, characterized in that, the diameter of said coaxial through hole (4-1) is not smaller than that of the sidewall through hole (2-2).

7. The heated tobacco product with the perforated sidewall as claimed in claim 1, characterized in that, the tobacco section (1) is formed by tobacco raw materials in various forms or other smoking substrates wrapped with the cigarette paper; the tobacco raw material is a tobacco substance being composed of a certain formula, which can be in the forms of sheet, filament, granule, shaped rod, porous rod or gel; the cigarette paper is made of an airtight material or a material with controllable air-permeability.

8. The heated tobacco product with the perforated sidewall as claimed in claim 1, characterized in that, said smoke extraction section (2) is made of a hard material with a certain hardness, including metal, PEEK, polytetrafluoroethylene, organic glass, acetate fiber, a paper-based material and the like.

9. The heated tobacco product with the perforated sidewall as claimed in claim 1, characterized in that, the heated tobacco product is a heat-not-burn tobacco product.

10. The heated tobacco product with the perforated sidewall as claimed in claim 1, characterized in that, said heating tobacco product (9) is used in conjunction with a closed tobacco heating appliance, said closed tobacco heating appliance is composed of a heating cavity (6) and a sealing structure, said heating cavity (6) has a cylindrical cavity structure, the heating mode thereof can be either circumferential heating or inner core heating, and the heating device partially or completely covers the entire tobacco section.

11. The heated tobacco product with the perforated sidewall as claimed in claim 8, characterized in that, said heating tobacco product (9) is used in conjunction with a closed tobacco heating appliance, said closed tobacco heating appliance is composed of a heating cavity (6) and a sealing structure, said heating cavity (6) has a cylindrical cavity structure, the heating mode thereof can be either circumferential heating or inner core heating, and the heating device partially or completely covers the entire tobacco section.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

[0021] FIG. 1 is a schematic axial cross-sectional view of a heated tobacco with a perforated sidewall,

[0022] In FIG. 1: 1 a tobacco section, 2, a smoke extraction section, 2-1 a cavity structure, 2-2 sidewall through holes, 3 a functional tip section, 4 cigarette paper, 4-1 a coaxial through hole, 5 tipping paper.

[0023] FIG. 2 is a structural schematic diagram of the smoke extraction section in a first form.

[0024] FIG. 3 is a structural schematic diagram of the smoke extraction section in a second form.

[0025] FIG. 4 is a structural schematic diagram and a structural schematic sectional diagram of the smoke extraction section in a third form.

[0026] FIG. 5 is a structural schematic diagram showing the perforated direction on the side wall.

[0027] FIG. 6 is a structural schematic sectional view of the cigarette and smoking set in the state of use.

[0028] In FIG. 6: 6 a heating cavity, 7 a cap, 8 a sealing ring, 9 a cigarette.

[0029] FIG. 7 is a data chart showing mass flow data as well as the calculated smoke extraction efficiency and the dilution rate data for each section obtained by using Fluent software simulation under the sidewall through hole with different diameters and the cavity with different inner diameters.

DETAILED DESCRIPTION OF THE EMBODIMENTS

[0030] The present invention is described in further detail below with reference to the accompanying drawings:

[0031] As shown in FIG. 1, a heated tobacco product with a perforated sidewall comprises a tobacco section (1) and a functional tip section (3), wherein: a smoke extraction section (2) is arranged between the tobacco section (1) and the functional tip section (3), the tobacco section (1), the smoke extraction section (2) and the functional tip section (3) are wrapped and connected together through an external rolling material (namely cigarette paper 4 and tipping paper 5), the smoke extraction section is a cylinder with a cavity structure (2-1), at least one sidewall through hole (2-2) communicated with the cavity structure (2-1) is opened on the side wall of the cylinder, and a coaxial through hole (4-1) is provided on the cigarette paper (4) at a position corresponding to the sidewall through hole (2-2).

[0032] The hollow cavity structure may be structured in the following three types:

[0033] One is that the cross section of the cavity structure (2-1) has a regular or an irregular shape such as circle, regular hexagon, hexagon, pentagon, heart shape and the like (as shown in FIG. 2).

[0034] The second type is that the cavity structure (2-1), an annular platform typed through cavity (shown in FIG. 3), is composed of sections with different diameters, preferably, composed of 2-3 sections, and the circumferential inner diameter of the cavity can be adjusted arbitrarily, which can be 2-10 mm.

[0035] The third type is that the cavity structure (2-1) is composed of a plurality of evenly distributed channels penetrating in an axial direction (as shown in FIG. 4), and the number and the diameter of the channels can be adjusted arbitrarily.

[0036] The included angle between the sidewall through holes and the axis of the hollow cavity is 90-150 (as shown in FIG. 5), preferably 90. The aperture diameter of the through holes can be adjusted arbitrarily, the optimal diameter is 0.01-3 mm; the number of the through holes can be adjusted arbitrarily, the optimal number is 1-30, and the through holes are uniformly distributed along the circumference; the diameter of the through holes and the number of the through holes are adjusted and matched according to actual conditions; the distance from the through hole to the tobacco section can be adjusted arbitrarily, and the optimal distance is 0.5-15 mm.

[0037] The tobacco section is composed of tobacco raw materials in various forms or other smoking substrates wrapped with cigarette paper; the tobacco raw materials are tobacco substances composed of a certain formula, which can be in the form of sheets, filaments, granules, shaped rods, porous rods, or gel; and the cigarette paper is an airtight material or a material with controllable air-permeability.

[0038] The smoke extraction section is made of a hard material with certain hardness, including metal, PEEK, polytetrafluoroethylene, organic glass, acetate fiber, a paper-based material and the like.

[0039] The heated tobacco product is used in conjunction with a closed tobacco heating appliance, the closed tobacco heating appliance is composed of a heating cavity 6 and a sealing ring 8 (see FIG. 6), the heating cavity has a cylindrical cavity structure, the heating mode thereof can be either circumferential heating or inner core heating, and the heating cavity covers the entire tobacco section. The sealing structure may be a soft sealing ring, an artificial lip, or other sealing structures for sealing the circumference. A cap 7 may be provided for enhance the sealing effect. The cap has a hollow cylindrical structure, and the inner diameter of the cap is slightly greater than the outer diameter of the cigarette in order to guarantee that the air can enter the sidewall through-hole, the inner cavity of the cap has a gradually-expanding trumpet structure (in FIG. 6, it has a trumpet structure or a cylindrical structure), and an included angle thereof with the central axis is more than or equal to 0 to less than or equal to 5. The heating cavity 6, the sealing ring 8 and the cap 7 are coaxial, and the cap is connected with the heating cavity by the means of threads, snaps or magnetic attraction. After the cigarette is inserted into the smoking set, the sidewall through hole 2-2 is positioned outside the sealing ring 8 of the smoking set, so as to ensure that the outside air can flow into the hollow cavity 2-1 through the through hole.

[0040] FIG. 7 is a data chart showing the mass flow data of each section obtained by using Fluent software simulation under different sidewall through hole diameters and cavity inner diameters, as well as the calculated smoke extraction efficiency and dilution rate data. It can be seen from the table, the extraction efficiency and the dilution rate of the smoke can be conveniently adjusted by adjusting the aperture diameter of the sidewall through holes and the inner diameter of the cavity.