A ladder rheological ternary composite filter rod and a cigarette

Abstract

This utility model discloses a stepped rheological ternary composite filter rod and cigarette, belonging to the field of tobacco product technology. It includes a first filter section near the cigarette end, a middle filter core section, and a second filter section at the mouthpiece end. The outer sides of the first filter section, the middle filter core section, and the second filter section at the mouthpiece end are covered with molded paper. The middle of the filter core section has through holes of a predetermined shape along the smoke flow direction, and the second filter section is arranged in a ring structure. This utility model, by designing filter core structures of different shapes and pore sizes, forms a complex streamline structure, changing the flow path of smoke throughout the filter rod. This results in greater restriction and dispersion of smoke flow, thereby promoting the collision and adsorption of certain tiny particles and harmful substances in the smoke with the filter core surface. While improving the smoke filtration effect, the filter core with its special structure also has high visual appeal, enhancing the market competitiveness of the cigarette.

Description

Technical Field

[0001] This utility model belongs to the field of tobacco product technology, specifically relating to a stepped rheological ternary composite filter rod and cigarette. Background Technology

[0002] The statements herein provide only background information related to this invention and do not necessarily constitute prior art.

[0003] Most traditional cigarette filter rods currently on the market are made of cellulose acetate. They are characterized by their uniform shape and filamentous internal structure, which helps to block smoke. While they can provide some filtration, as consumers become more health-conscious, their demands for the filtration effect and smoking experience of cigarettes are gradually increasing. The filtration effect and visual appeal of traditional cellulose acetate filter rods are somewhat lacking, especially in terms of filtering harmful substances in smoke and improving the smoking experience. Current technology cannot effectively meet market demands. Utility Model Content

[0004] The purpose of this invention is to provide a stepped rheological ternary composite filter rod and its cigarette. By designing filter element structures with different shapes and pore sizes, a complex streamline structure is formed, which changes the flow path of the smoke in the entire filter rod, making the flow of the smoke more restricted and dispersed. This, in turn, causes certain tiny particles and harmful substances in the smoke to collide and be adsorbed with the filter element surface. While improving the smoke filtration effect, the filter element with a special structure has a high visual appeal, thereby enhancing the market competitiveness of the cigarette.

[0005] To achieve the above objectives, this utility model is implemented through the following technical solution:

[0006] In the first aspect, the embodiments of this utility model provide a stepped rheological ternary composite filter rod, including a first filter section near the end of the cigarette stick, a filter core section in the middle and a second filter section at the mouthpiece end, with molded paper covering the outside of the first filter section, the filter core section in the middle and the second filter section at the mouthpiece end.

[0007] The filter element section has a through hole of a predetermined shape in the middle along the flue gas flow direction, and the second filter section is arranged in a ring structure.

[0008] As a further technical solution, the first filter section, the middle filter element section, and the second filter section at the inlet end are all made of cellulose acetate material.

[0009] As a further technical solution, the outer wall diameter of the first filter section is the same as the outer wall diameter of the middle filter element section, and the outer wall diameter of the middle filter element section is the same as the outer wall diameter of the second filter section at the inlet end.

[0010] As a further technical solution, the two ends of the filter element section in the middle are respectively in contact with the first filter section and the second filter section.

[0011] As a further technical solution, the through hole is located at the axial position of the middle filter element section along the flue gas flow direction.

[0012] As a further technical solution, the cross-sectional area between the inner walls of the second filter section, which is arranged in a ring structure, along the direction perpendicular to the axis is greater than the cross-sectional area of ​​the through hole along the direction perpendicular to the axis.

[0013] As a further technical solution, the length of the second filter section along the axial direction is less than the length of the filter element section along the axial direction.

[0014] As a further technical solution, the length of the first filter section along the axial direction is the same as the length of the middle filter element section along the axial direction.

[0015] As a further technical solution, the forming paper is a transparent forming paper with no air permeability.

[0016] In a second aspect of this invention, a cigarette is provided, comprising any of the aforementioned stepped rheological ternary composite filter rods.

[0017] The beneficial effects of the above-described embodiments of this utility model are as follows:

[0018] The present invention provides a stepped rheological ternary composite filter rod and its cigarette, which, by designing filter core structures of different shapes and pore sizes, forms a complex streamline structure, changes the flow path of smoke in the entire filter rod, and makes the flow of smoke more restricted and dispersed, thereby causing certain particulate matter and harmful substances in the smoke to collide and be adsorbed with the filter core surface. While improving the smoke filtration effect, the filter core with special structure has a high visual appeal, enhancing the market competitiveness of cigarettes.

[0019] Specifically, when the flue gas passes through the filter rod, it first enters the specially shaped section in the middle. The specially shaped through holes in this section can control the flow path of the flue gas to a certain extent, forming a complex streamline structure. By setting these through holes, the flow of the flue gas is more restricted and dispersed. The pores in the specially shaped section are smaller, and when the flue gas passes through the small pores, the airflow speed increases, and the contact area between the gas and the inner surface of the filter element increases. This causes some tiny particles and harmful substances in the flue gas to collide and be adsorbed by the filter element surface, while larger particles and harmful substances are collided, adsorbed, and filtered, thereby improving the filtration efficiency. Furthermore, the flue gas flows to the circular filter element in the inlet section. The pores in this section are larger, and the airflow speed is relatively slowed down, which helps the deposition and re-filtration of fine particles, further enhancing the filtration effect and reducing the release of harmful substances.

[0020] Throughout the process, through continuous changes in the flow path and aperture, harmful components in the flue gas are filtered more effectively. Attached Figure Description

[0021] The accompanying drawings, which form part of this specification, are used to provide a further understanding of this utility model. The illustrative embodiments of this utility model and their descriptions are used to explain this utility model and do not constitute an improper limitation of this utility model.

[0022] Figure 1 This is a schematic diagram of the overall structure of a stepped rheological ternary composite filter rod and cigarette provided in Embodiment 1 of this utility model;

[0023] Figure 2 This is a schematic diagram of the overall structure of a stepped rheological ternary composite filter rod and cigarette provided in Embodiment 2 of this utility model;

[0024] Figure 3 This is a schematic diagram of the overall structure of a stepped rheological ternary composite filter rod and cigarette provided in Embodiment 3 of this utility model.

[0025] The diagram is for illustrative purposes only.

[0026] The components are: 1. Forming paper; 2. First filtration section; 3. Filter element section; 4. Through holes; 5. Second filtration section. Detailed Implementation

[0027] It should be noted that the following detailed description is exemplary and intended to provide further explanation of the present invention. Unless otherwise specified, all technical and scientific terms used in this invention have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains.

[0028] Example 1

[0029] In a typical embodiment of this utility model, such as Figure 1 As shown, a stepped rheological ternary composite filter rod is provided, including a first filter section 2 near the end of the cigarette stick, a filter core section 3 in the middle, and a second filter section 5 at the mouthpiece end. The first filter section 2, the filter core section 3 in the middle, and the second filter section 5 at the mouthpiece end are covered with a molding paper 1.

[0030] The filter element section 3 has a through hole 4 of a predetermined shape in the middle along the flue gas flow direction, and the second filter section 5 is arranged in a ring structure.

[0031] In this embodiment, the through hole 4 is set to a regular hexagonal structure. It is understood that in other embodiments of this utility model, other polygonal through hole 4 structures may be selected.

[0032] Through the second filter section 5 with its large-aperture annular structure at the mouthpiece, you can see the filter element section 3 with a special shape in the middle, which increases visual appeal and enhances the enjoyment of smoking. In addition, since the interior of the middle filter element section 3 is set with a regular hexagonal structure, the protrusions and edges inside have a better collision and adsorption effect on the smoke.

[0033] With this configuration, after the smoke passes through the first filter section 2, a portion of the smoke will be blocked at the end of the filter element section 3 and enter the hexagonal through-hole 4. During the blocking process, the filter element section 3 traps some particulate matter and harmful substances such as tar in the smoke. When passing through the through-hole 4 of the middle filter element section 3, the airflow speed increases due to the smaller aperture of the through-hole 4, and the contact area between the smoke and the inner surface of the filter element increases. This causes some tiny particles and harmful substances in the smoke to collide and be adsorbed with the filter element surface, achieving secondary filtration. Then, the smoke enters the second filter section 5, which is designed with a ring structure. The internal aperture of this section is larger, and the airflow speed is relatively slowed down, which helps the deposition and secondary filtration of fine particles, further enhancing the filtration effect, reducing the release of harmful substances, and reducing the suction resistance, making it easier for smokers to inhale.

[0034] In addition, the filter section 3 with a special shape in the middle can be seen through the second filter section 5 with a large-diameter annular structure at the mouth end, which increases the visual appeal and enhances the fun of suction.

[0035] Furthermore, the first filter section 2, the middle filter element section 3, and the second filter section 5 at the inlet end are all made of cellulose acetate material.

[0036] Furthermore, the outer wall diameter of the first filter section 2 is the same as the outer wall diameter of the middle filter element section 3, and the outer wall diameter of the middle filter element section 3 is the same as the outer wall diameter of the second filter section 5 at the inlet end.

[0037] Furthermore, the two ends of the filter element section 3 in the middle are respectively in contact with the first filter section 2 and the second filter section 5.

[0038] Furthermore, the through hole 4 is located at the axial position of the middle filter element section 3 along the flue gas flow direction.

[0039] Furthermore, the cross-sectional area between the inner walls of the second filter section 5, which is arranged in a ring structure, along the direction perpendicular to the axis is greater than the cross-sectional area of ​​the through hole 4 along the direction perpendicular to the axis.

[0040] Furthermore, the length of the second filter section 5 along the axial direction is less than the length of the filter element section 3 along the axial direction.

[0041] Furthermore, the length of the first filter section 2 along the axial direction is the same as the length of the middle filter element section 3 along the axial direction.

[0042] Furthermore, the forming paper 1 is a transparent forming paper 1 with no air permeability.

[0043] In a second aspect of this invention, a cigarette is provided, comprising any of the aforementioned stepped rheological ternary composite filter rods.

[0044] Example 2

[0045] In this embodiment, the difference from Embodiment 1 is that the through hole 4 of the middle filter section 3 is set in the shape of a pentagonal star. The filter section 3 with the special shape in the middle can be seen through the second filter section 5 with the large diameter annular structure at the mouthpiece end, which increases the visual appeal and enhances the fun of smoking. In addition, since the interior of the middle filter section 3 is set in a pentagonal star structure, the contact area between its inner wall and the smoke is larger than that of the traditional circular structure. The protruding structure inside also has a better collision and adsorption effect on the smoke.

[0046] Example 3

[0047] In this embodiment, the difference from embodiment 1 is that the through hole 4 of the middle filter section 3 is set to a heart shape. The filter section 3 with a special shape in the middle can be seen through the second filter section 5 with a large diameter annular structure at the mouthpiece end, which increases the visual appeal and enhances the fun of smoking. In addition, since the interior of the middle filter section 3 is set to a heart shape, its inner wall has a larger contact area with the smoke than the traditional circular structure, and the protrusion structure inside has a better collision and adsorption effect on the smoke.

[0048] The present invention provides a stepped rheological ternary composite filter rod and its cigarette, which, by designing filter core structures of different shapes and pore sizes, forms a complex streamline structure, changes the flow path of smoke in the entire filter rod, and makes the flow of smoke more restricted and dispersed, thereby causing certain particulate matter and harmful substances in the smoke to collide and be adsorbed with the filter core surface. While improving the smoke filtration effect, the filter core with special structure has a high visual appeal, enhancing the market competitiveness of cigarettes.

[0049] Specifically, when the smoke passes through the filter rod, it first enters the specially shaped middle section. The specially shaped through holes 4 of this section can control the flow path of the smoke to a certain extent, forming a complex streamline structure. By setting these through holes 4, the flow of smoke is more restricted and dispersed. The pores of the specially shaped section are small. When the smoke passes through the small pores, the airflow speed increases and the contact area between the gas and the inner surface of the filter element increases. This causes some tiny particles and harmful substances in the smoke to collide and be adsorbed with the filter element surface. Larger particles and harmful substances are collided, adsorbed, and filtered, thereby improving the filtration efficiency. Furthermore, the smoke flows to the second filter section 5 of the annular structure in the mouthpiece section. The pores inside this section are larger, and the airflow speed is relatively slowed down, which helps the deposition and re-filtration of fine particles, further enhancing the filtration effect, reducing the release of harmful substances, and reducing the suction resistance, making it easier for smokers to smoke.

[0050] Throughout the process, through continuous changes in the flow path and aperture, harmful components in the flue gas are filtered more effectively.

[0051] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A stepped rheological ternary composite filter rod, characterized in that, It includes a first filter section near the end of the cigarette, a filter core section in the middle, and a second filter section at the mouthpiece end. The outer sides of the first filter section, the filter core section in the middle, and the second filter section at the mouthpiece end are covered with forming paper. The filter element section has a through hole of a predetermined shape in the middle along the flue gas flow direction, and the second filter section is arranged in a ring structure.

2. The stepped rheological ternary composite filter rod as described in claim 1, characterized in that, The first filter section, the middle filter element section, and the second filter section at the inlet end are all made of cellulose acetate material.

3. The stepped rheological ternary composite filter rod as described in claim 1, characterized in that, The outer wall diameter of the first filter section is the same as the outer wall diameter of the middle filter element section, and the outer wall diameter of the middle filter element section is the same as the outer wall diameter of the second filter section at the inlet end.

4. The stepped rheological ternary composite filter rod as described in claim 1, characterized in that, The two ends of the filter element section in the middle are respectively in contact with the first filter section and the second filter section.

5. A stepped rheological ternary composite filter rod as described in claim 1, characterized in that, The through-hole is located at the axial position of the middle filter element section along the flue gas flow direction.

6. The stepped rheological ternary composite filter rod as described in claim 1, characterized in that, The cross-sectional area between the inner walls of the second filter section, which is arranged in a ring structure, in the direction perpendicular to the axis is greater than the cross-sectional area of ​​the through hole in the direction perpendicular to the axis.

7. A stepped rheological ternary composite filter rod as described in claim 1, characterized in that, The length of the second filter section along the axial direction is less than the length of the filter element section along the axial direction.

8. The stepped rheological ternary composite filter rod as described in claim 1, characterized in that, The length of the first filter section along the axial direction is the same as the length of the middle filter element section along the axial direction.

9. A stepped rheological ternary composite filter rod as described in claim 1, characterized in that, The forming paper is transparent and has no air permeability.

10. A cigarette, characterized in that, Includes the stepped rheological ternary composite filter rod as described in any one of claims 1-9.

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