Monocomponent gel filter rod and cigarette

CN224710494UActive Publication Date: 2026-09-04SHANGHAI TOBACCO GROUP CO LTD +1
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Patent Information

Application Number
CN202521334381.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-06-27
Publication Date
2026-09-04
Estimated Expiration
2035-06-27

AI Technical Summary

Technical Problem

[0004]本实用新型提供一种一元凝胶滤棒及烟支,用以解决现有技术中滤棒生产成本较高的缺陷

Benefits of technology

[0015] The single-element gel filter rod provided by this utility model reduces the amount of gel material used by setting the length of the gel filter element to be less than the length of the filter rod body, thereby reducing the manufacturing cost of the gel filter rod and giving enterprises a cost advantage in fierce market competition.

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Abstract

The utility model relates to a cigarette technology field provides a one gel filter stick and cigarette. The one gel filter stick, including: filter stick body, gel filter core, the gel filter core is along the axis of filter stick body and is arranged in filter stick body, the first end of gel filter core is flush with the first end of filter stick body, and the length of gel filter core is less than the length of filter stick body. The one gel filter stick, through setting the length of gel filter core as less than the length of filter stick body, has reduced the dosage of gel material, thereby has reduced the manufacturing cost of gel filter stick, has won the cost advantage for enterprise in the fierce market competition.
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Description

Technical Field

[0001] This utility model relates to the field of cigarette technology, and in particular to a single-component gel filter rod and a cigarette. Background Technology

[0002] Cigarettes, as a common tobacco product, typically consist of tobacco shreds and a filter rod. The filter rod plays a crucial role in the cigarette, primarily composed of the filter core and the wrapping layer. The filter core is the core component of the filter rod, and the choice of its material directly impacts the filter rod's performance and cost.

[0003] Currently, filter cartridges are typically made of gel materials. Gel materials possess good filtration performance and a certain adsorption capacity, which can reduce the content of harmful substances in cigarette smoke to a certain extent, thereby improving the quality of cigarettes. However, gel materials themselves are expensive, which directly leads to a significant increase in the overall production cost of filter rods. In the context of increasingly fierce market competition, the high cost of filter rods is a problem that cigarette manufacturers urgently need to solve. Utility Model Content

[0004] This invention provides a single-element gel filter rod and cigarette, which solves the problem of high production cost of filter rods in the prior art.

[0005] This utility model provides a single-element gel filter rod, comprising: a filter rod body; and a gel filter element, wherein the gel filter element is disposed within the filter rod body along the axis of the filter rod body, the first end of the gel filter element is flush with the first end of the filter rod body, and the length of the gel filter element is less than the length of the filter rod body.

[0006] According to the present invention, a uni-element gel filter rod is provided, wherein a filtration section is formed between the first end and the second end of the gel filter element, and a transition section is formed between the second end of the gel filter element and the second end of the filter rod body, and the lengths of the filtration section and the transition section are adjustable.

[0007] According to the present invention, a single-component gel filter rod is provided, wherein the length of the filter section is 4mm-20mm.

[0008] According to the present invention, a single-component gel filter rod is provided, wherein the length of the transition section is 10mm-25mm.

[0009] According to the present invention, a single-element gel filter rod is provided, wherein the diameter of the gel filter element is 2mm-4mm.

[0010] According to the present invention, a single-element gel filter rod is provided, the filter rod body comprising: a filament bundle, wherein a gel filter element is inserted into the filament bundle along the axis of the filament bundle, and the length of the gel filter element is less than the length of the filament bundle; and a roll paper layer wrapped around the outside of the filament bundle.

[0011] According to the present invention, a single-component gel filter rod is provided, wherein the filament bundle is a diacetate fiber filament bundle.

[0012] According to the present invention, a single-element gel filter rod has a diameter of 15.5mm-24.5mm.

[0013] According to the present invention, a single-element gel filter rod is provided, wherein the length of the filter rod body is 90mm-144mm.

[0014] This utility model also provides a cigarette stick, comprising: a single gel filter rod as described above; and a tobacco stick connected to the single gel filter rod.

[0015] The single-element gel filter rod provided by this utility model reduces the amount of gel material used by setting the length of the gel filter element to be less than the length of the filter rod body, thereby reducing the manufacturing cost of the gel filter rod and giving enterprises a cost advantage in fierce market competition. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the structure of the unary gel filter rod provided by this utility model.

[0018] Figure 2 This is a schematic diagram of the structure of the uni-element gel filter rod material provided by this utility model.

[0019] Figure label:

[0020] 1. Filter rod body; 11. Paper roll layer; 12. Fiber bundle; 2. Gel filter element; 3. Filtration section; 4. Transition section; 5. Gel filter rod strip. Detailed Implementation

[0021] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0022] In the description of the embodiments of this utility model, it should be noted that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this utility model. In addition, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0023] In the description of the embodiments of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this utility model based on the specific circumstances.

[0024] In this embodiment of the utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0025] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0026] The following is combined with Figure 1 and Figure 2 This invention describes a monopolymer gel filter rod and a cigarette.

[0027] like Figure 1 As shown, in an embodiment of this utility model, the unary gel filter rod includes: a filter rod body 1 and a gel filter element 2. The gel filter element 2 is disposed inside the filter rod body 1 along the axis of the filter rod body 1. The first end of the gel filter element 2 is flush with the first end of the filter rod body 1. The length of the gel filter element 2 is less than the length of the filter rod body 1, and the diameter of the gel filter element 2 is less than the diameter of the filter rod body 1.

[0028] Specifically, in the prior art, the length of the gel filter element 2 is equal to the length of the filter rod body 1. Due to the high cost of gel materials, the overall manufacturing cost of the gel filter rod is high. In this embodiment, by setting the length of the gel filter element 2 to be less than the total length of the filter rod body 1, the manufacturing cost of the gel filter element 2 can be reduced, thereby reducing the overall manufacturing cost of the gel filter rod.

[0029] In this embodiment, the gel filter element 2 has a unique aroma-carrying function. In the actual production process, it can flexibly and precisely mix naturally extracted flavoring components into the gel material according to the diversified market demand and the aroma positioning of different cigarette products, thereby successfully expanding the aroma-carrying function of the gel filter rod. This provides strong technical support for improving the taste quality and aroma characteristics of cigarette products, and further enhances the market competitiveness and consumer appeal of the products.

[0030] The uni-element gel filter rod provided in this embodiment reduces the amount of gel material used by setting the length of the gel filter element to be less than the length of the filter rod body, thereby reducing the manufacturing cost of the gel filter rod and giving enterprises a cost advantage in fierce market competition.

[0031] In existing technologies, when it is necessary to improve the filtration efficiency for specific harmful substances or change the adsorption resistance characteristics, since the length of the gel filter element 2 is equal to the length of the filter rod body 1, the entire gel filter rod needs to be redesigned, developed, and replaced. This process not only involves complex process adjustments but also consumes a large amount of human, material, and time resources, seriously affecting the company's production efficiency and market response speed.

[0032] Based on the above problems, in the embodiments of this utility model, a filtration section 3 is formed between the first end and the second end of the gel filter element 2, and a transition section 4 is formed between the second end of the gel filter element 2 and the second end of the filter rod body 1. When cigarette smoke passes through the transition section 4 and the filtration section 3, the transition section 4 can utilize its own physical structural characteristics, such as its pore structure, to perform preliminary filtration and interception of larger particulate impurities in the smoke; while the filtration section 3 can effectively adsorb specific chemical substances in the smoke, such as some volatile harmful components or odor substances, by virtue of its special chemical structure and adsorption properties. Through this multi-level, multi-stage synergistic filtration mechanism, efficient and precise filtration of complex component smoke can be achieved, significantly improving the overall filtration effect and performance of the gel filter rod.

[0033] In embodiments of this invention, the lengths of the filter section 3 and the transition section 4 are adjustable. That is, given a fixed length of the filter rod body 1, when the length of the filter section 3 increases, the length of the transition section 4 decreases accordingly; and vice versa. When the length of the filter section 3 changes, the suction resistance can be adjusted. For example, when it is necessary to reduce the suction resistance to achieve a smoother smoking experience, the length of the filter section 3 can be appropriately reduced and the length of the transition section 4 can be increased, thereby reducing the resistance of the smoke passing through the gel filter rod and making the fluid pass through the gel filter rod more easily and smoothly. Conversely, when it is necessary to increase the suction resistance to enhance filtration efficiency or meet the smoking taste requirements of a specific product, the length of the filter section 3 can be increased and the length of the transition section 4 can be shortened.

[0034] When adjusting the suction resistance, the porosity of the gel filter element 2 can also be adjusted. Increasing the porosity of the gel filter element 2 allows the fluid to pass through the gel filter rod more easily and smoothly, thereby reducing the resistance of the flue gas when passing through the gel filter rod. Conversely, decreasing the porosity of the gel filter element 2, increasing the diameter of the gel filter element 2, or increasing the concentration of gel material in the gel filter element 2 can all increase the resistance of the flue gas when passing through the gel filter rod.

[0035] The uni-element gel filter rod provided in this embodiment of the invention achieves precise adjustment and control of the draw resistance of the gel filter rod by adjusting the length of the filter section, the diameter of the gel filter element, the porosity of the gel filter element, and the concentration of gel material in the gel filter element, thus providing a solid technical guarantee for the personalized design and development of cigarette products.

[0036] like Figure 1 As shown, in an embodiment of this invention, the filter rod body 1 includes a paper roll layer 11 and a filament bundle 12. A gel filter element 2 is inserted into the filament bundle 12 along its axis, and the length of the gel filter element 2 is less than the length of the filament bundle 12. The paper roll layer 11 wraps around the outside of the filament bundle 12. Optionally, in an embodiment of this invention, the filament bundle 12 is a cellulose diacetate filament bundle.

[0037] Figure 2This is a schematic diagram of the structure of the single-component gel filter rod 5 provided in this embodiment of the present invention. In manufacturing the single-component gel filter rod, the gel filter element 2 is first implanted into the fiber bundle 12 at intervals according to design requirements using a pulsed gel application process, followed by integral molding. Then, a roll paper layer 11 is wrapped around the fiber bundle 12 to form the gel filter rod 5. In this embodiment, multiple gel filter elements 2 are spaced apart within the gel filter rod 5, with a transition section 4 between adjacent gel filter elements 2. In the subsequent slitting process, the gel filter rod 5 is cut into gel filter rods according to a set length specification, serving as the filtering section of the cigarette. At this time, each cigarette's filtering section includes a filtering section 3 and a transition section 4. This intermittent structure of the gel filter element 2 gives the gel filter rod excellent filtration flexibility.

[0038] In this embodiment, a pulsed gel application process is used to produce gel filter rod strips 5 in one piece. Due to its unique uni-structure characteristics, compared with traditional binary or multi-component composite filter rods, it cleverly omits the complex composite process, thereby reducing production costs at the source.

[0039] Optionally, in an embodiment of this utility model, the diameter of the filter rod body 1 is 15.5mm-24.5mm; the length of the filter rod body 1 is 90mm-144mm; the length of the filter section 3 is 4mm-20mm; the length of the transition section 4 is 10mm-25mm; and the diameter of the gel filter element 2 is 2mm-4mm.

[0040] Furthermore, when the length of the filter rod body 1 is 30mm, the length combinations of the filter section 3 and the transition section 4 can be as follows: the length of the filter section 3 is 7mm and the length of the transition section 4 is 23mm; the length of the filter section 3 is 10mm and the length of the transition section 4 is 20mm; the length of the filter section 3 is 15mm and the length of the transition section 4 is 15mm; the length of the filter section 3 is 20mm and the length of the transition section 4 is 10mm. To further reduce the suction resistance, the length of the filter section 3 can also be set to 4mm and the length of the transition section 4 can be set to 16mm.

[0041] This utility model embodiment also provides a cigarette stick, including a gel filter rod and a tobacco stick, wherein the gel filter rod and the tobacco stick are connected.

[0042] Specifically, the unary gel filter rod includes a filter rod body 1 and a gel filter element 2. The gel filter element 2 is disposed within the filter rod body 1 along the axis of the filter rod body 1. The first end of the gel filter element 2 is flush with the first end of the filter rod body 1. The length of the gel filter element 2 is less than the length of the filter rod body 1, and the diameter of the gel filter element 2 is less than the diameter of the filter rod body 1. In this embodiment, by setting the length of the gel filter element 2 to be less than the total length of the filter rod body 1, the manufacturing cost of the gel filter element 2 can be reduced, thereby reducing the manufacturing cost of the gel filter rod.

[0043] In this embodiment, the gel filter element 2 has a unique aroma-carrying function. In the actual production process, it can flexibly and precisely mix naturally extracted flavoring components into the gel material according to the diversified market demand and the aroma positioning of different cigarette products, thereby successfully expanding the aroma-carrying function of the gel filter rod. This provides strong technical support for improving the taste quality and aroma characteristics of cigarette products, and further enhances the market competitiveness and consumer appeal of the products.

[0044] The cigarette provided in this embodiment of the utility model reduces the amount of gel material used by setting a single gel filter rod, thereby reducing the manufacturing cost of the gel filter rod and giving the enterprise a cost advantage in fierce market competition.

[0045] In this embodiment of the invention, a filtration section 3 is formed between the first end and the second end of the gel filter element 2, and a transition section 4 is formed between the second end of the gel filter element 2 and the second end of the filter rod body 1. When cigarette smoke passes through the transition section 4 and the filtration section 3, the transition section 4 can utilize its own physical structural characteristics, such as its pore structure, to perform preliminary filtration and interception of larger particulate impurities in the smoke; while the filtration section 3 can effectively adsorb specific chemical substances in the smoke, such as some volatile harmful components or odor substances, by virtue of its special chemical structure and adsorption properties. Through this multi-level, multi-stage synergistic filtration mechanism, efficient and precise filtration of complex component smoke can be achieved, significantly improving the overall filtration effect and performance of the gel filter rod.

[0046] In embodiments of this invention, the lengths of the filter section 3 and the transition section 4 are adjustable. That is, given a fixed length of the filter rod body 1, when the length of the filter section 3 increases, the length of the transition section 4 decreases accordingly; and vice versa. When the length of the filter section 3 changes, the suction resistance can be adjusted. For example, when it is necessary to reduce the suction resistance to achieve a smoother smoking experience, the length of the filter section 3 can be appropriately reduced and the length of the transition section 4 can be increased, thereby reducing the resistance of the smoke passing through the gel filter rod and making the fluid pass through the gel filter rod more easily and smoothly. Conversely, when it is necessary to increase the suction resistance to enhance filtration efficiency or meet the smoking taste requirements of a specific product, the length of the filter section 3 can be increased and the length of the transition section 4 can be shortened.

[0047] When adjusting the suction resistance, the porosity of the gel filter element 2 can also be adjusted. Increasing the porosity of the gel filter element 2 allows the fluid to pass through the gel filter rod more easily and smoothly, thereby reducing the resistance of the flue gas when passing through the gel filter rod. Conversely, decreasing the porosity of the gel filter element 2, increasing the diameter of the gel filter element 2, or increasing the concentration of gel material in the gel filter element 2 can all increase the resistance of the flue gas when passing through the gel filter rod.

[0048] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A single-component gel filter rod, characterized in that, include: Filter rod body; A gel filter element is disposed within the filter rod body along the axis of the filter rod body. The first end of the gel filter element is flush with the first end of the filter rod body, and the length of the gel filter element is less than the length of the filter rod body.

2. The unary gel filter rod according to claim 1, characterized in that, A filtration section is formed between the first end and the second end of the gel filter element, and a transition section is formed between the second end of the gel filter element and the second end of the filter rod body. The lengths of the filtration section and the transition section are adjustable.

3. The unary gel filter rod according to claim 2, characterized in that, The length of the filter section is 4mm-20mm.

4. The unary gel filter rod according to claim 2, characterized in that, The length of the transition section is 10mm-25mm.

5. The unary gel filter rod according to claim 1, characterized in that, The diameter of the gel filter element is 2mm-4mm.

6. The unary gel filter rod according to claim 1, characterized in that, The filter rod body includes: The gel filter element is inserted into the filament bundle along the axis of the filament bundle, and the length of the gel filter element is less than the length of the filament bundle. A roll of paper is wrapped around the outside of the filament bundle.

7. The unary gel filter rod according to claim 6, characterized in that, The filament bundle is a cellulose diacetate filament bundle.

8. The unary gel filter rod according to claim 1, characterized in that, The diameter of the filter rod body is 15.5mm-24.5mm.

9. The unary gel filter rod according to claim 1, characterized in that, The length of the filter rod body is 90mm-144mm.

10. A cigarette stick, characterized in that, include: The monopolymer gel filter rod according to any one of claims 1-9; A tobacco stick, which is connected to the unary gel filter rod.