A filter tip structure and molding method

Abstract

This invention relates to the field of heated cigarette technology, specifically disclosing a filter tip structure and molding method. The filter tip structure includes: a filter rod core, molding paper, and multiple plugs. The filter rod core is cylindrical, and the molding paper is fixedly sleeved on the outer circumferential surface of the filter rod core. The molding paper has multiple guide holes arranged in an array, with m rows along the circumference of the filter rod core and n columns along the axial direction of the filter rod core, where m and n are both integers greater than 0. The multiple plugs are arranged one-to-one with the multiple guide holes, and the plugs can block the guide holes. With this configuration, the smoker can manually remove the plugs before actually smoking. Removing the plugs increases the entry of side airflow, thereby increasing the ventilation rate of the heated cigarette and reducing the draw resistance during smoking. At the same time, removing the plugs can cause the microcapsules containing flavoring to rupture due to friction, releasing the flavoring and giving the smoke its characteristic aroma, effectively improving the smoker's smoking experience.

Description

Technical Field

[0001] This invention relates to the field of heated cigarette technology, and in particular to a filter tip structure and molding method. Background Technology

[0002] Heated cigarettes are a new type of tobacco product that releases smoke by heating a thin sheet of tobacco containing a "smoke-generating agent." They typically use non-combustion heating (below 500℃) to release aerosols from the tobacco material, thus avoiding the release of large amounts of toxic and harmful substances during the high-temperature decomposition of the tobacco. Compared to traditional combustion cigarettes, heated cigarettes produce fewer harmful components and release them at lower levels without altering traditional smoking habits, resulting in less environmental pollution and less harm to smokers. Furthermore, heated cigarettes use real tobacco components, providing a smoking experience and flavor profile closer to traditional cigarettes, making them more readily accepted by consumers.

[0003] The existing filter structure of heated cigarettes usually consists of a filter rod core and a forming paper. The forming paper is fixedly sleeved on the outer periphery of the filter rod core. When inhaling, air enters from the bottom of the cigarette core and passes through the cigarette core and filter structure in sequence before finally entering the smoker's mouth. However, due to the airtight wrapping of the forming paper, smokers may experience problems such as excessive suction resistance during actual inhalation, which to some extent affects the smoking experience. Summary of the Invention

[0004] The purpose of this invention is to provide a filter tip structure and molding method that can increase the ventilation rate of heated cigarettes, reduce the suction resistance during inhalation, and effectively improve the smoking experience for smokers.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] On one hand, the present invention provides a filter tip structure, comprising:

[0007] Filter rod core, wherein the filter rod core is cylindrical;

[0008] A forming paper is fixedly sleeved on the outer circumferential surface of the filter rod core, and the forming paper is provided with multiple guide holes. The multiple guide holes are arranged in an array, with m rows arranged along the circumferential direction of the filter rod core and n columns arranged along the axial direction of the filter rod core, where m and n are both integers greater than 0.

[0009] Multiple blocking components are provided, each corresponding to one of the multiple guide holes, and the blocking components are capable of blocking the guide holes.

[0010] As a preferred technical solution for the above-mentioned filter structure, the clogging element is made of several strands of cotton thread spirally woven together.

[0011] As a preferred embodiment of the above-mentioned filter structure, the plugging component is coated with microcapsules containing fragrance, and the diameter of the microcapsules is 1-3 μm.

[0012] As a preferred embodiment of the above-mentioned filter structure, the plugging member can be inserted into the flow guide hole, and the two ends of the plugging member are respectively located on both sides of the forming paper.

[0013] As a preferred technical solution of the above-mentioned filter structure, the blocking member has a reserved length of L1 on one side of the forming paper and a reserved length of L2 on the other side of the forming paper, where L1 = L2 = 0.5cm.

[0014] As a preferred technical solution of the above-mentioned filter structure, the m rows of guide holes are equidistant and uniformly arranged along the circumferential direction of the filter rod core, and the n columns of guide holes are equidistant and uniformly arranged along the axial direction of the filter rod core.

[0015] As a preferred technical solution for the above-mentioned filter structure, the cross-sectional shape of the guide hole is one or a combination of several of the following: circular, square, star-shaped, and heart-shaped.

[0016] As a preferred technical solution for the above-mentioned filter tip structure, the filter rod core is made of cellulose acetate tow material.

[0017] In a preferred embodiment of the above-mentioned filter structure, m = 1 and n = 7.

[0018] On the other hand, the present invention also provides a molding method, including the filter structure of any of the above embodiments.

[0019] The molding method includes:

[0020] S100: Unfold the forming paper and use the perforating needle to drive the blocking member to perforate the forming paper;

[0021] S200: Cut off the end of the plug that is connected to the perforating needle, so that the two ends of the plug are located on both sides of the forming paper;

[0022] S300: The forming paper is fixedly sleeved on the outer peripheral surface of the filter rod core.

[0023] The beneficial effects of this invention are as follows:

[0024] This invention provides a filter tip structure and molding method. The filter tip structure includes: a filter rod core, molding paper, and multiple plugging components. The filter rod core is cylindrical. The molding paper is fixedly sleeved on the outer circumferential surface of the filter rod core, and the molding paper is provided with multiple guide holes. The multiple guide holes are arranged in an array, with m rows along the circumferential direction of the filter rod core and n columns along the axial direction of the filter rod core, where m and n are both integers greater than 0. The multiple plugging components are arranged one-to-one with the multiple guide holes, and the plugging components can block the guide holes. With this design, smokers can manually remove the plug before actually smoking. Removing the plug increases the entry of side air, thereby increasing the ventilation rate of the heated cigarette and reducing the draw resistance. The reduced draw resistance also increases the smoke concentration. Furthermore, the entry of side air can dilute the concentration of harmful components in the smoke, reduce the nicotine concentration, and lower the strength. At the same time, removing the plug can cause the microcapsules containing flavorings to rupture due to friction, releasing the flavorings and giving the smokes a characteristic aroma, effectively enhancing the smoker's smoking experience. Attached Figure Description

[0025] Figure 1 Structural diagram of the filter tip structure provided by the present invention Figure 1 ;

[0026] Figure 2 Structural diagram of the filter tip structure provided by the present invention Figure 2 ;

[0027] Figure 3 A schematic diagram of the structure of the forming paper, the perforating needle and the plugging component provided by the present invention;

[0028] Figure 4 This is a schematic diagram of the structure of the forming paper and the blocking component provided by the present invention;

[0029] Figure 5 This is a schematic diagram illustrating the airflow direction during suction provided by the present invention.

[0030] in:

[0031] 1. Filter rod core; 2. Forming paper; 3. Guide hole; 4. Blocking component; 5. Perforation needle. Detailed Implementation

[0032] Embodiments of the present invention are described in detail below. Examples of these embodiments are illustrated in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0033] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for 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 invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. The terms "first position" and "second position" refer to two different positions.

[0034] Unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing" should be interpreted broadly. For example, they can refer to fixed connections or detachable connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and connections within two components or interactions between two components. Those skilled in the art can understand the specific meaning of these terms in this invention based on the specific circumstances.

[0035] Unless otherwise expressly specified and limited, "above" or "below" a second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of a second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" of a second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0036] The technical solution of the present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0037] like Figures 1 to 5As shown, this embodiment provides a filter structure, which includes: a filter core 1, a forming paper 2, and multiple plugs 4. The filter core 1 is cylindrical, and the forming paper 2 is fixedly sleeved on the outer circumferential surface of the filter core 1. The forming paper 2 has multiple guide holes 3, which are arranged in an array, with m rows along the circumference of the filter core 1 and n columns along the axial direction of the filter core 1, where m and n are both integers greater than 0. The multiple plugs 4 are arranged one-to-one with the multiple guide holes 3, and the plugs 4 can block the guide holes 3. With this configuration, the smoker can manually remove the plugs 4 before actually smoking. Removing the plugs 4 can increase the entry of side air, thereby increasing the ventilation rate of the heated cigarette, reducing the suction resistance during smoking, and increasing the smoke concentration due to the reduced suction resistance, effectively improving the smoker's smoking experience. At the same time, the entry of side air can also dilute the concentration of harmful components in the smoke, reduce the nicotine concentration, and reduce the strength.

[0038] It should be noted that during inhalation, the smoker can adjust the ventilation rate by controlling the number of times the plug 4 is removed, thereby controlling the suction resistance. That is, the ventilation rate increases with the increase of the number of plugs 4 removed, while the harmful components and nicotine decrease with the increase of the number of plugs 4 removed.

[0039] Specifically, m = 1 and n = 7. Of course, in other embodiments, the specific values ​​of m and n can be set according to actual needs, and no further restrictions are imposed here.

[0040] Optionally, the plug 4 is made of several strands of cotton thread spirally woven together. Further, the plug 4 is coated with microcapsules containing fragrance, the microcapsules having a diameter of 1-3 μm.

[0041] Specifically, this embodiment provides the following exemplary solution: the plug 4 is spirally woven from three strands of fine cotton thread, and microcapsules containing flavoring are added during the spiral formation. The diameter of the microcapsules is 2μm. With this configuration, when the plug 4 is removed before inhalation, the flavoring microcapsules attached to the plug 4 will rupture due to the friction of the pore wall of the guide hole 3 and the filter core 1. During inhalation, air enters from the bottom of the cigarette core and sequentially passes through the cigarette core and filter core 1 into the oral cavity. Because the plug 4 is removed, the airflow passes through the guide hole 3, and the flavoring components released from the ruptured microcapsules enter the oral cavity with the mainstream smoke, imparting the characteristic aroma of heated cigarette smoke and effectively improving the smoker's inhalation experience. It should be noted that the smoker can adjust the aroma by controlling the number of plugs 4 removed.

[0042] Optionally, the plug 4 can be inserted into the guide hole 3, with both ends of the plug 4 located on opposite sides of the forming paper 2. This arrangement allows the plug 4 located on the outer side of the forming paper 2 to be easily removed by the smoker, while the plug 4 located on the inner side of the forming paper 2 increases the contact area with the filter core 1, enhancing friction and allowing the flavoring to be fully released through friction, further enhancing the mellow and aromatic taste of the smoke.

[0043] Specifically, this embodiment provides the following exemplary solution: the blocking component 4 has a reserved length of L1 on one side of the forming paper 2, and the blocking component 4 has a reserved length of L2 on the other side of the forming paper 2, where L1 = L2 = 0.5cm. Of course, in other embodiments, the specific lengths of L1 and L2 can be set according to actual needs, and no further restrictions are imposed here.

[0044] Optionally, in order to ensure the uniformity of the side airflow, the m rows of guide holes 3 are equidistant and uniformly arranged along the circumferential direction of the filter rod core 1, and the n columns of guide holes 3 are equidistant and uniformly arranged along the axial direction of the filter rod core 1.

[0045] Optionally, the cross-sectional shape of the guide hole 3 can be one or a combination of circles, squares, stars, and hearts. In this embodiment, the cross-sectional shape of the guide hole 3 is uniformly set to a circle. In other embodiments, the cross-sectional shape of the guide hole 3 can be set according to actual needs, and no further restrictions are imposed here.

[0046] Optionally, the filter core 1 is made of cellulose acetate tow material. Specifically, the circumferential diameter of the filter core 1 is 1.7 cm.

[0047] This embodiment also provides a molding method, including the filter tip structure described above.

[0048] Molding methods include:

[0049] S100: Unfold the forming paper 2 and use the perforating needle 5 to drive the blocking part 4 to perforate the forming paper 2;

[0050] S200: Cut off the end of the plug 4 that connects to the perforating needle 5, so that the two ends of the plug 4 are located on both sides of the forming paper 2.

[0051] S300: The forming paper 2 is fixedly sleeved on the outer periphery of the filter rod core 1.

[0052] Optionally, the pore size of the guide hole 3 is 0.1 mm. Of course, in other embodiments, the pore size of the guide hole 3 can be set according to actual needs, and no further limitations are imposed here.

[0053] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the implementation of the present invention. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the scope of protection of the claims of the present invention.

Claims

1. A filter tip structure, characterized in that... ,include: Filter rod core (1), wherein the filter rod core (1) is cylindrical; A forming paper (2) is fixedly sleeved on the outer circumferential surface of the filter rod core (1), and the forming paper (2) is provided with a plurality of flow guide holes (3). The plurality of flow guide holes (3) are arranged in an array, with m rows arranged along the circumferential direction of the filter rod core (1) and n columns arranged along the axial direction of the filter rod core (1), where m and n are both integers greater than 0. Multiple blocking components (4) are provided, and the multiple blocking components (4) are provided in a one-to-one correspondence with the multiple guide holes (3). The blocking components (4) can block the guide holes (3); The plugging component (4) is made of several strands of cotton thread spirally woven together; The plug (4) is attached with microcapsules containing fragrance, the microcapsules having a diameter of 1-3 μm; The plug (4) can be inserted into the guide hole (3) and the two ends of the plug (4) are respectively located on both sides of the forming paper (2).

2. The filter structure according to claim 1, characterized in that, The blocking component (4) has a reserved length of L1 on one side of the forming paper (2) and a reserved length of L2 on the other side of the forming paper (2), where L1 = L2 = 0.5cm.

3. The filter tip structure according to any one of claims 1-2, characterized in that, The m-row guide holes (3) are equidistantly and uniformly arranged along the circumferential direction of the filter rod core (1), and the n-column guide holes (3) are equidistantly and uniformly arranged along the axial direction of the filter rod core (1).

4. The filter tip structure according to any one of claims 1-2, characterized in that, The cross-sectional shape of the guide hole (3) is one or a combination of one or more of the following: circular, square, star-shaped, and heart-shaped.

5. The filter tip structure according to any one of claims 1-2, characterized in that, The filter rod core (1) is made of cellulose acetate tow material.

6. The filter tip structure according to any one of claims 1-2, characterized in that, m=1, and n=7.

7. A molding method, characterized in that... The method for preparing a filter tip structure as described in any one of claims 1-6 includes: S100: Unfold the forming paper (2) and use the perforating needle (5) to drive the plug (4) to make a perforation on the forming paper (2); S200: Cut off one end of the plug (4) that is connected to the perforating needle (5), so that the two ends of the plug (4) are located on both sides of the forming paper (2); S300: The forming paper (2) is fixedly sleeved on the outer circumferential surface of the filter rod core (1).

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