Filter tip having a watermelon-like structure and appearance

Abstract

The utility model provides a filter tip with watermelon structure and appearance belongs to cigarette filter tip technical field, this filter tip includes: the filter tip that connects in proper order intercepts cooling section, the filter stick section with watermelon structure and appearance and the tipping paper of the wrapping intercepts cooling section and filter stick section, among them, the filter stick section includes the inner core with watermelon core structure and the shell with watermelon skin appearance, the inner core is provided with a plurality of orderly distributed through -hole, the opening end of through -hole has the water drop shape structure of one narrow head, the other wide head, constructs the color of watermelon seed through the color contrast of opening end and surrounding inner core.

Description

Technical Field

[0001] This utility model belongs to the field of cigarette filter technology, and in particular relates to a filter with a watermelon-like structure and appearance. Background Technology

[0002] As consumer demands continue to evolve and upgrade, cigarette filters are also constantly developing, reflected in innovations in materials, structure, and flavor. For example, to enrich the sensory experience of cigarettes, a specific aroma is loaded inside the filter, providing smokers with an additional sensory experience beyond the traditional tobacco flavor, such as natural or synthetic aromas like vanilla or mint. However, currently, there is a lack of filters that correspond to a specific flavor.

[0003] Therefore, developing a filter structure and appearance design that works with cigarettes of a specific flavor, so that consumers can not only smell the flavor but also see its color immediately when smoking that flavored cigarette, is a problem that urgently needs to be solved in the field of cigarette filter technology. Utility Model Content

[0004] In view of this, the present invention provides a filter tip with a watermelon-like structure and appearance. By designing the structure and appearance of the filter tip, it satisfies visual and sensory experience, thereby at least partially solving the aforementioned technical problems. The technical solution provided by the present invention is as follows.

[0005] As one aspect of this utility model, a filter tip with a watermelon-like structure and appearance is provided, comprising: a throttling and cooling section, a filter rod section with a watermelon-like structure and appearance, and a splicing paper wrapping the throttling and cooling section and the filter rod section; wherein, the filter rod section includes an inner core with a watermelon-like pulp structure and an outer shell with a watermelon rind appearance, the inner core having multiple orderly distributed through holes, the opening end of the through holes having a teardrop-shaped structure that is narrow at one end and wide at the other end, and the color of watermelon seeds is constructed by the color contrast between the opening end and the surrounding inner core.

[0006] In some embodiments, the thickness of the outer shell accounts for 6%-30% of the diameter of the filter rod segment.

[0007] In some embodiments, the condensation cooling section is a cellulose acetate bundle section or a hollow section; wherein, the cellulose acetate bundle section includes cellulose acetate bundles.

[0008] In some embodiments, the cellulose acetate bundle segment also includes a fragrance thread located at the center of the cellulose acetate bundle segment.

[0009] In some implementations, the filter tip contains watermelon-flavored flavoring.

[0010] In some embodiments, watermelon flavoring is added to at least one of the hollow section, cellulose acetate tow, fragrance thread, and filter rod section.

[0011] In some implementations, the total length of the filter tip is 10-30 mm, the length of the filter rod section is 4-26 mm, and the remainder is a trapping and cooling section.

[0012] In some implementations, the circumference of the through hole is 1.8-10 mm, the number of through holes is 4-20, and the total area of ​​all through holes is 5-60% of the total area of ​​the end face of the filter rod segment.

[0013] In some embodiments, the filter rod segment is made of two layers of different colored materials, wherein the inner core is the same as or similar to the color of the watermelon flesh, and the outer shell is the same as or similar to the color of the watermelon rind; wherein the filter rod segment is an integral structure, or is composed of an inner core and an outer shell assembled together.

[0014] In some embodiments, when the filter rod segment includes an inner core material, a layer of molded paper is wrapped around the outer surface of the inner core as an outer shell, or a splicing paper is used as an outer shell.

[0015] In the technical solution of this utility model, the filter nozzle of this utility model consists of a cooling section and a filter rod section with a watermelon-like structure and appearance, as well as a splicing paper wrapping them. The filter rod section is designed with an inner core with a watermelon flesh-like structure and an outer shell with a watermelon rind appearance. Multiple through holes are opened in the inner core. The shape and color of watermelon seeds are constructed by the structure of the opening end of the through holes and the color contrast between the opening end of the through holes and the surrounding inner core, so that consumers can achieve a watermelon visual experience during the sucking process. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the filter structure in Embodiment 1 of this utility model, where the cooling section is composed of cellulose acetate bundles;

[0017] Figure 2 This is a schematic diagram of the end face of the filter rod segment in the filter nozzle of Embodiment 1 of this utility model;

[0018] Figure 3 This is a schematic diagram of the filter structure in Embodiment 6 of this utility model, where the cooling section is a hollow section.

[0019] [Attached image labels]

[0020] 1-Filter tip, 2-Tip paper;

[0021] 10-Filter rod section, 11-Cooling section, 101-Outer shell, 102-Inner core, 103-Through hole, 12-Fragrance thread, 13-Fiber acetate bundle, 14-Hollow section. Detailed Implementation

[0022] The embodiments of the present invention will now be described with reference to the accompanying drawings. However, it should be understood that these descriptions are exemplary only and are not intended to limit the scope of the present invention. In the following detailed description, numerous specific details are set forth to provide a comprehensive understanding of the embodiments of the present invention for ease of explanation. However, it will be apparent that one or more embodiments may be practiced without these specific details. Furthermore, descriptions of well-known structures and techniques are omitted in the following description to avoid unnecessarily obscuring the concept of the present invention.

[0023] In implementing this invention, it was discovered that current methods enrich the sensory experience of cigarette smoking by adding natural or compound flavorings to the filter tip, or by designing the filter tip's structure and appearance to enhance the visual experience. However, there is currently a lack of filter tips on the market with a watermelon structure and appearance, making it impossible to achieve the visual experience of a watermelon during smoking.

[0024] In response, this utility model provides a filter tip with a watermelon structure and appearance. When consumers smoke cigarettes, they can immediately see watermelon-like appearance and structural features, enhancing the visual sensory experience. Furthermore, the addition of watermelon-flavored flavoring enhances the dual visual and gustatory experience for consumers.

[0025] Specifically, the filter tip with a watermelon structure and appearance provided by this utility model includes: a trapping and cooling section, a filter rod section with a watermelon-like structure and appearance, and a splicing paper wrapping the trapping and cooling section and the filter rod section; wherein, the filter rod section includes an inner core with a watermelon pulp-like structure and an outer shell with a watermelon rind appearance, wherein the inner core has multiple orderly distributed through holes, and the opening end of the through holes has a teardrop-shaped structure that is narrow at one end and wide at the other end, and the color of watermelon seeds is constructed by the color contrast between the opening end and the surrounding inner core.

[0026] In embodiments of this invention, a tipping paper is used to connect the cooling section and the filter rod section to form a complete filter structure. The tipping paper prevents the cooling section and the filter rod section from separating during smoking, ensuring the stability of the filter's shape; it also serves aesthetic purposes, provides brand identification, heat insulation, and prevents scalding. In some embodiments, the tipping paper can also serve as an outer shell resembling a watermelon rind. One end of the cooling section can be connected to the tobacco section, and the other end can be connected to the filter rod section. The cooling section can both trap harmful components such as tar in cigarette smoke and reduce the temperature of the cigarette. This invention designs the filter rod section with an inner core resembling watermelon flesh (such as a cartoon watermelon structure) and an outer shell resembling a watermelon rind. Multiple through holes are opened in the inner core, and the opening end of the through holes is designed as a teardrop shape, narrow at one end and wide at the other, simulating the color of watermelon seeds through the color contrast between the opening end and the surrounding inner core. In addition to enhancing the visual experience of the watermelon, the perforations also reduce resistance during suction, allowing for the retention of harmful substances and a reduction in temperature, while simultaneously improving the visual appeal of the watermelon and enhancing the consumer's overall experience.

[0027] According to an embodiment of this utility model, a filter tip with a watermelon-like structure and appearance can be connected to a tobacco segment via a splicing paper to form a cigarette. This can be understood as follows: one end of the tobacco segment contacts the interception and cooling section, the other end of the interception and cooling section contacts the filter rod section, and the splicing paper wrapping the interception and cooling section and the filter rod section extends towards the tobacco segment to partially wrap it, thereby forming a complete cigarette.

[0028] According to embodiments of this utility model, the thickness of the outer shell accounts for 6%-30% of the diameter of the filter rod segment. For example, it can be 6%, 10%, 12%, 15%, 18%, 20%, 25%, 30%, etc., or any value within this range, which is not limited in detail here. This utility model limits the ratio of the thickness of the outer shell (i.e., the watermelon rind) to the diameter of the filter rod segment to 6%-30%, ensuring that the filter rod with the cartoon watermelon structure has a beautiful and harmonious appearance.

[0029] According to an embodiment of this utility model, the interception and cooling section is a cellulose acetate tow section, wherein the cellulose acetate tow section comprises cellulose acetate tow. The cellulose acetate tow section is the core component of the filter tip. Utilizing its high specific surface area and the microporous channels formed between the fibers, when smoke or aerosol passes through the cellulose acetate tow section during cigarette inhalation, it can trap some harmful substances in the smoke or aerosol through physical adsorption and interception. By controlling the filling density of the cellulose acetate tow, the inhalation resistance and filtration effect can be balanced. Furthermore, when smoke or aerosol passes through the cellulose acetate tow, it comes into contact with the fiber surface, and some heat is absorbed by the cellulose acetate tow, which can play a certain cooling role and prevent the filter tip from being scalded. The cellulose acetate tow also has a certain degree of elasticity and strength, which can provide some support and prevent collapse due to external pressure during cigarette inhalation, ensuring the smooth passage of smoke or aerosol.

[0030] According to an embodiment of the present invention, the cellulose acetate bundle segment also includes a fragrance thread located at the center of the cellulose acetate bundle segment, which can release fragrance during use, blend with the fragrance of the tobacco itself, and enhance the aroma, thereby improving the consumer's experience.

[0031] According to embodiments of this invention, the cooling section can also be a hollow section, which, as the name suggests, refers to a partially hollow area within the filter. During inhalation, the smoke or aerosol exchanges heat with the outside air within the hollow section, achieving cooling and preventing discomfort caused by excessively high temperatures entering the mouth. The presence of the hollow section also reduces the resistance of the smoke or aerosol, ensuring smooth inhalation. The stiffness of the hollow section also ensures smooth flow of smoke or aerosol. The hollow section of this invention can be composed of cellulose acetate bundles, i.e., hollow cellulose acetate bundles, which have high hardness and stiffness.

[0032] According to embodiments of this invention, the watermelon-flavored flavoring can be added to at least one of the hollow section, the cellulose acetate tow, the flavoring thread, and the filter rod section. Methods for adding the flavoring include impregnation, coating, and spraying, which will not be detailed here. For example, the watermelon-flavored flavoring can be added to the inner wall of the hollow section and / or the filter rod section; it can also be added to the entire hollow section, i.e., to the hollow cellulose acetate tow.

[0033] In embodiments of this invention, when the cooling section is composed of cellulose acetate tow, the filter tip combined with the tobacco section forms a traditional cigarette. When the cooling section is hollow, the filter tip combined with the tobacco section forms a heated cigarette, also known as a heated non-combustible cigarette. This invention replaces part of the cellulose acetate tow or hollow section in a traditional cigarette filter with a watermelon filter rod featuring a cartoon watermelon structure, allowing consumers to immediately perceive the structure and appearance of a watermelon (cartoon watermelon structure), and enhancing the consumer's experience of the watermelon flavor when used with watermelon-flavored essence. Furthermore, the cellulose acetate tow or hollow section can be flexibly switched and assembled to prepare different types of cigarettes.

[0034] According to an embodiment of this utility model, the total length of the filter nozzle is 10-30mm, the length of the filter rod section is 4-26mm, and the remainder is a trapping and cooling section. By controlling the length of the filter rod section, a partial replacement of the trapping and cooling section can be achieved, balancing cost and visual experience.

[0035] According to an embodiment of this utility model, in the open end structure of the through hole, the narrow end faces the center of the inner core. The through holes can be distributed in a circumferential array, or a single through hole can be set at the center of the inner core. The number of through holes in the inner core can be 4-20, or can be flexibly set according to requirements. The circumference of the through hole is 1.8-10mm, and the total area of ​​all through holes is 5-60% of the total area of ​​the end face of the filter rod segment.

[0036] According to an embodiment of this utility model, the filter rod segment is made of two layers of materials of different colors. The inner core is the same as or similar in color to the watermelon flesh, and the outer shell is the same as or similar in color to the watermelon rind. This can be understood as follows: in a filter rod segment with a cartoon watermelon structure and appearance, the inner core is composed of a red material with the same or similar color to the watermelon flesh, and the outer shell is composed of a green material with the same or similar color to the watermelon rind. One or more through holes are formed in the inner core (i.e., the watermelon flesh). The opening end of the through hole has a teardrop-shaped structure that is narrow at one end and wide at the other. The outer shell (i.e., the watermelon rind) is composed of alternating vertical stripes of dark green and light green. The thickness of the watermelon rind (i.e., the outer shell) is as defined above. Because the inner core with the cartoon watermelon flesh structure is a darker red or pink, the opening end of the through hole contrasts with the color of the surrounding inner core, thus creating a darker or blacker color on the end face of the filter rod segment, resulting in a black visual effect similar to watermelon seeds at the through holes; or, at a certain angle, a light-colored visual effect, analogous to a seedless watermelon. Thus, the entire filter tip now features the colors and shapes of watermelon rind, cartoon-structured watermelon flesh, and watermelon seeds, providing consumers with a visual sensory experience of watermelon.

[0037] According to an embodiment of this utility model, when the filter rod segment includes an inner core material, a layer of molded paper is wrapped around the outer surface of the inner core as an outer shell, or a tipping paper is used as the outer shell. It can be understood that the filter rod segment with a cartoon watermelon structure and appearance consists of an inner core made of a red material that is the same or similar in color to the watermelon flesh, and an outer shell made of molded paper or tipping paper wrapped around the outer surface of the inner core; wherein, the inner core (i.e., the watermelon flesh) has one or more through holes, the opening end of which has a teardrop-shaped structure that is narrow at one end and wide at the other; the color of the molded paper or tipping paper is a green material that is the same or similar in color to the watermelon rind, and it can also be composed of alternating dark green and light green vertical stripes to form the watermelon rind, the thickness of which is as defined above. Furthermore, the inner core of the cartoon watermelon can be a darker red or pink, creating a contrast between the opening of the filter and the surrounding core. This makes the end face of the filter appear darker or blacker, creating a black visual effect similar to watermelon seeds. Alternatively, it can have a lighter visual effect at certain angles, similar to seedless watermelons. The entire end face of the filter can simultaneously have the color and shape of watermelon rind, cartoon-structured watermelon flesh, and watermelon seeds, providing consumers with a better visual sensory experience of watermelon.

[0038] According to embodiments of this utility model, the filter rod segment is composed of at least one of solid silicone, polypropylene, polylactic acid, colored cellulose acetate tow, and forming paper. This can be understood as the filter rod segment having a solid silicone core and a silicone sleeve as the outer shell, differing only in color. Alternatively, the inner core may be red cellulose acetate tow, and the outer shell may be green cellulose acetate tow wrapped around the outer surface of the inner core. Alternatively, the inner core may be solid silicone, and the outer shell may be forming paper; or, the inner core may be solid silicone, and the outer shell may be splicing paper.

[0039] According to embodiments of this utility model, depending on the different materials of the inner core and outer shell in the filter rod segment, the filter rod segment can be a one-piece structure or composed of an inner core and an outer shell assembled together. For example, when both the inner core and outer shell are made of silicone, a one-piece filter nozzle can be prepared by one-step molding; or, the inner core and outer shell can be prepared separately according to dimensions, and then assembled to prepare the filter nozzle. Alternatively, when the inner core is made of cellulose acetate tow and the outer shell is made of molded paper, the two can be molded in steps and then assembled to prepare the filter nozzle.

[0040] According to embodiments of this utility model, the filter tip of this utility model can be used with coarse or fine cigarettes, and the filter tip can be flexibly assembled as needed.

[0041] The filter of this utility model will be described in detail below with reference to specific embodiments.

[0042] Example 1

[0043] Figure 1This is a schematic diagram of the filter tip structure in Embodiment 1 of this utility model, where the cooling section is composed of cellulose acetate filament bundles. Figure 2 This is a schematic diagram of the end face of the filter rod section in the filter nozzle of Embodiment 1 of this utility model.

[0044] like Figures 1-2 As shown, the filter tip includes a cooling section 11, a filter rod section 10 with a watermelon-like structure and appearance, and a tipping paper 2 that wraps the cooling section 11 and the filter rod section 10, connected in sequence. The cooling section 11 is a cellulose acetate bundle section, and a fragrance thread 12 is provided at the center of the cellulose acetate bundle section. The cellulose acetate bundle section is composed of cellulose acetate bundles 13, and watermelon-flavored flavoring is added to the cellulose acetate bundles 13, the filter rod section 10, or the fragrance thread 12. The filter rod section 10 includes an inner core 102 with a watermelon flesh-like structure and an outer shell 101 with a watermelon rind appearance. That is, the inner core 102 has the structure and appearance of a cartoon watermelon flesh (i.e., the watermelon flesh is red and has the texture of watermelon flesh), and the outer shell 101 is composed of alternating dark green and light green vertical stripes. The inner core 102 and the outer shell 101 are made of silicone material of different colors. The entire watermelon filter rod is molded into a single structure. Then, splicing paper is wrapped around the outer surface of the interception and cooling section and the filter rod section. The thickness of the outer shell 101 (i.e., the watermelon rind) accounts for 6%-30% of the diameter of the entire filter rod section 10. The inner core 102 has multiple through holes 103. The through holes 103 include a through hole located at the center of the inner core 102, and 4-20 axially distributed through holes arranged in an array around the central through hole 103. The opening end of the through hole 103 has a teardrop-shaped structure that is narrow at one end and wide at the other end. In the axially distributed through holes, the narrow end of the opening faces the center of the inner core 102, which helps to increase the number of through holes in the entire filter nozzle and is also aesthetically pleasing. The color of watermelon seeds is created by contrasting the color of the open end of the through hole with the color of the surrounding inner core 102. The through hole 103, which has the shape of a watermelon seed, has a circumference of 2.8 mm, and the total area of ​​all through holes is 27% of the total area of ​​the end face of the filter rod segment.

[0045] Example 2

[0046] Example 2 has the same characteristics as in Example 1. Figures 1-2 The same structure, the difference lies in the way the inner core 102 and the outer shell 101 are formed in the filter rod section 10.

[0047] Specifically, the filter includes a cooling section 11, a filter rod section 10 with a watermelon-like structure and appearance, and a tipping paper 2 that wraps the cooling section 11 and the filter rod section 10, connected in sequence. The cooling section 11 is a cellulose acetate bundle section, and a fragrance thread 12 is provided at the center of the cellulose acetate bundle section. The cellulose acetate bundle section is composed of cellulose acetate bundles 13, and watermelon-flavored flavoring is added to the cellulose acetate bundles 13 or the fragrance thread 12. The filter rod section 10 includes an inner core 102 with a watermelon flesh-like structure and an outer shell 101 with a watermelon rind appearance. That is, the inner core 102 has the structure and appearance of a cartoon watermelon flesh (i.e., the watermelon flesh is red and has the texture of watermelon flesh), and the outer shell 101 is composed of alternating dark green and light green vertical stripes. The inner core 102 and outer shell 101 are made of silicone materials of different colors. A green silicone sleeve is wrapped around the outer surface of the red silicone material of the inner core 102 (resembling watermelon flesh) to form the outer shell 101, thus creating a filter rod segment with a cartoon watermelon structure and appearance. A splicing paper is wrapped around the outer surface of the interception and cooling section and the filter rod segment. The thickness of the outer shell 101 (i.e., the watermelon rind) accounts for 6%-30% of the diameter of the entire filter rod segment 10. The inner core 102 has multiple through holes 103, including a through hole located at the center of the inner core 102, and 4-20 axially distributed through holes arranged in an array around the center. The opening end of each through hole 103 has a teardrop shape, narrow at one end and wide at the other. In the axially distributed through holes, the narrower opening end faces the center of the inner core 102, which helps to increase the number of through holes in the entire filter nozzle while also enhancing its aesthetic appeal. The color of watermelon seeds is created by contrasting the color of the open end of the through hole with the color of the surrounding inner core 102. The through hole 103, which has the shape of watermelon seeds, has a circumference of 1.8-10mm, and the total area of ​​all through holes is 5-60% of the total area of ​​the end face of the filter rod segment.

[0048] Example 3

[0049] Example 3 has the same characteristics as in Example 1. Figures 1-2 The same structure, the difference is that the outer shell 101 in the filter rod section 10 is made of molded paper.

[0050] Specifically, the filter includes a cooling section 11, a filter rod section 10 with a watermelon-like structure and appearance, and a tipping paper 2 that wraps the cooling section 11 and the filter rod section 10, connected in sequence. The cooling section 11 is a cellulose acetate bundle section, and a fragrance thread 12 is provided at the center of the cellulose acetate bundle section. The cellulose acetate bundle section is composed of cellulose acetate bundles 13, and watermelon-flavored flavoring is added to the cellulose acetate bundles 13 or the fragrance thread 12. The filter rod section 10 includes an inner core 102 with a watermelon flesh-like structure and an outer shell 101 with a watermelon rind appearance. That is, the inner core 102 has the structure and appearance of a cartoon watermelon flesh (i.e., the watermelon flesh is red and has the texture of watermelon flesh), and the outer shell 101 is composed of alternating dark green and light green vertical stripes. The inner core 102 is made of watermelon-fleshed red silicone, and the outer shell 101 is a molding paper of a certain thickness. The outer surface of the molding paper has alternating dark green and light green vertical stripes. By wrapping the molding paper around the outer surface of the inner core 102, a filter rod segment with a cartoon watermelon structure and appearance is assembled. A splicing paper is then wrapped around the outer surface of the interception and cooling section and the filter rod segment. The thickness of the molding paper (outer shell, i.e., watermelon rind) accounts for 6%-30% of the diameter of the entire filter rod segment 10. The inner core 102 has multiple through holes 103, including a central through hole and 4-20 axially distributed through holes alternating around this central through hole 103. The opening end of each through hole 103 has a teardrop-shaped structure, narrow at one end and wide at the other. In the axially distributed through holes, the narrower opening end faces the center of the inner core 102, which helps increase the number of through holes in the entire filter nozzle while also enhancing its aesthetic appeal. The color of watermelon seeds is created by contrasting the color of the open end of the through hole with the color of the surrounding inner core 102. The through hole 103, which has the shape of watermelon seeds, has a circumference of 1.8-10mm, and the total area of ​​all through holes is 5-60% of the total area of ​​the end face of the filter rod segment.

[0051] Example 4

[0052] Example 4 has the same characteristics as in Example 1. Figures 1-2 The same structure, the difference is that the outer shell 101 in the filter rod section 10 is a splicing paper 2.

[0053] Specifically, the filter includes a cooling section 11, a filter rod section 10 with a watermelon-like structure and appearance, and a tipping paper 2 that wraps the cooling section 11 and the filter rod section 10, connected in sequence. The cooling section 11 is a cellulose acetate bundle section, and a fragrance thread 12 is provided at the center of the cellulose acetate bundle section. The cellulose acetate bundle section is composed of cellulose acetate bundles 13, and watermelon-flavored flavoring is added to the cellulose acetate bundles 13 or the fragrance thread 12. The filter rod section 10 includes an inner core 102 with a watermelon flesh-like structure and an outer shell 101 with a watermelon rind appearance. That is, the inner core 102 has the structure and appearance of a cartoon watermelon flesh (i.e., the watermelon flesh is red and has the texture of watermelon flesh), and the outer shell 101 is composed of alternating dark green and light green vertical stripes. The inner core 102 is made of watermelon-fleshed red silicone. The connector paper 2 serves as the outer shell 101 of the filter rod segment 10. The outer surface of the connector paper 2 is composed of alternating light and dark green vertical stripes. By wrapping the connector paper 2 around the outer surface of the inner core 102, a filter rod segment with a cartoon watermelon structure and appearance is assembled. The thickness of the connector paper (outer shell, i.e., watermelon rind) accounts for 6%-30% of the diameter of the entire filter rod segment 10. The inner core 102 has multiple through holes 103. The through holes 103 include a through hole located at the center of the inner core 102, and 4-20 axially distributed through holes alternating around the central through hole 103. The opening end of the through hole 103 has a teardrop-shaped structure that is narrow at one end and wide at the other. In the axially distributed through holes, the narrow end of the opening faces the center of the inner core 102, which helps to increase the number of through holes in the entire filter nozzle while also being aesthetically pleasing. The color of watermelon seeds is created by contrasting the color of the open end of the through hole with the color of the surrounding inner core 102. The through hole 103, which has the shape of watermelon seeds, has a circumference of 1.8-10mm, and the total area of ​​all through holes is 5-60% of the total area of ​​the end face of the filter rod segment.

[0054] Example 5

[0055] Example 5 has the same characteristics as in Example 1. Figures 1-2 The same structure, the difference is that the inner core 102 and the outer shell 101 in the filter rod section 10 are made of two different colored cellulose acetate bundles.

[0056] Specifically, the filter includes a cooling section 11, a filter rod section 10 with a watermelon-like structure and appearance, and a tipping paper 2 that wraps the cooling section 11 and the filter rod section 10, connected in sequence. The cooling section 11 is a cellulose acetate bundle section, and a fragrance thread 12 is provided at the center of the cellulose acetate bundle section. The cellulose acetate bundle section is composed of cellulose acetate bundles 13, and watermelon-flavored flavoring is added to the cellulose acetate bundles 13 or the fragrance thread 12. The filter rod section 10 includes an inner core 102 with a watermelon flesh-like structure and an outer shell 101 with a watermelon rind appearance. That is, the inner core 102 has the structure and appearance of a cartoon watermelon flesh (i.e., the watermelon flesh is red and has the texture of watermelon flesh), and the outer shell 101 is composed of alternating dark green and light green vertical stripes. The inner core 102 is made of red watermelon flesh-colored cellulose acetate filaments, while the outer shell 101 is made of alternating dark green and light green cellulose acetate filaments. The filter rod segment with a cartoon watermelon structure and appearance is assembled by wrapping the outer shell 101 around the outer surface of the inner core 102 and then wrapping it with forming paper. Subsequently, splicing paper is wrapped around the surface of the interception and cooling section and the filter rod segment. The thickness of the outer shell 101 (i.e., the watermelon rind) accounts for 6%-30% of the total diameter of the filter rod segment 10. The inner core 102 has multiple through holes 103, including a central through hole and 4-20 axially distributed through holes alternating around this central through hole 103. The opening end of each through hole 103 has a teardrop shape, narrow at one end and wide at the other. In the axially distributed through holes, the narrower opening end faces the center of the inner core 102, which helps increase the number of through holes in the entire filter nozzle while also enhancing its aesthetic appeal. The color of watermelon seeds is created by contrasting the color of the open end of the through hole with the color of the surrounding inner core 102. The through hole 103, which has the shape of watermelon seeds, has a circumference of 1.8-10mm, and the total area of ​​all through holes is 5-60% of the total area of ​​the end face of the filter rod segment.

[0057] Example 6

[0058] Figure 3 This is a schematic diagram of the filter structure in Embodiment 6 of this utility model, where the cooling section is a hollow section.

[0059] like Figure 3 As shown, the difference between Example 6 and Example 5 is that the cooling section 11 is a hollow section 14.

[0060] Specifically, the filter includes a cooling section 11, a filter rod section 10 with a watermelon-like structure and appearance, and a tipping paper 2 that wraps around the cooling section 11 and the filter rod section 10. Specifically, the cooling section 11 is a hollow section 14, and the inner walls of the hollow section 14 and the filter rod section 10 are coated with watermelon-flavored essence. The filter rod section 10 includes an inner core 102 with a watermelon-like flesh structure and an outer shell 101 with a watermelon rind appearance; that is, the inner core 102 has the structure and appearance of a cartoon watermelon flesh (i.e., the watermelon flesh is red and has the texture of watermelon flesh), and the outer shell 101 consists of alternating dark green and light green vertical stripes. The inner core 102 is made of red cellulose acetate filaments resembling watermelon flesh, while the outer shell 101 is made of alternating dark green and light green cellulose acetate filaments. The filter rod segment with a cartoon watermelon structure and appearance is assembled by wrapping the outer shell 101 around the outer surface of the inner core 102 and then wrapping it with forming paper. Subsequently, splicing paper is wrapped around the surface of the interception and cooling section and the filter rod segment. The thickness of the outer shell 101 (i.e., the watermelon rind) accounts for 6%-30% of the total diameter of the filter rod segment 10. The inner core 102 has multiple through holes 103, including a central through hole and 4-20 axially distributed through holes alternating around this central through hole 103. The opening of each through hole 103 has a teardrop shape, narrow at one end and wide at the other. In the axially distributed through holes, the narrower opening faces the center of the inner core 102, which helps increase the number of through holes in the entire filter nozzle while also enhancing its aesthetic appeal. The color of watermelon seeds is created by contrasting the color of the open end of the through hole with the color of the surrounding inner core 102. The through hole 103, which has the shape of watermelon seeds, has a circumference of 1.8-10mm, and the total area of ​​all through holes is 5-60% of the total area of ​​the end face of the filter rod segment.

[0061] Example 7

[0062] Example 7 has the following characteristics: Figure 3 The structure shown differs from that of Example 6 in that it does not contain molding paper.

[0063] Specifically, the filter tip includes a cooling section 11, a filter rod section 10 with a watermelon-like structure and appearance, and a splicing paper 2 wrapped around the cooling section 11 and the filter rod section 10, connected in sequence. Specifically, the cooling section 11 is a hollow section 14, and the inner wall of the hollow section 14 is coated with watermelon-flavored flavoring. The filter rod section 10 includes an inner core 102 with a watermelon-like flesh structure and an outer shell 101 with a watermelon rind appearance. The inner core 102 has the structure and appearance of a cartoon watermelon flesh (i.e., the watermelon flesh is red and has the texture of watermelon flesh), and the outer shell 101 is composed of alternating dark green and light green vertical stripes. The inner core 102 is composed of red cellulose acetate filaments resembling watermelon flesh, and the outer shell 101 is composed of alternating dark green and light green cellulose acetate filaments. By wrapping the outer shell 101 around the outer surface of the inner core 102, a filter rod section with a cartoon watermelon structure and appearance is assembled, and the splicing paper is then wrapped around the surface of the filter rod section to form the filter tip. The outer shell 101 (i.e., watermelon rind) has a thickness of 6%-30% of the total diameter of the filter rod segment 10. The inner core 102 has multiple through holes 103, including a central through hole and 4-20 axially distributed through holes alternating around this central through hole 103. The opening of each through hole 103 has a teardrop shape, narrow at one end and wide at the other. In the axially distributed through holes, the narrower opening faces the center of the inner core 102, which increases the number of through holes in the entire filter and enhances its aesthetic appeal. The color of watermelon seeds is created by contrasting the opening of the through holes with the surrounding color of the inner core 102. The circumference of the through holes 103 with a watermelon seed shape is 1.8-10 mm, and the total area of ​​all through holes is 5-60% of the total area of ​​the filter rod segment's end face.

[0064] The specific embodiments described above further illustrate the purpose, technical solution, and beneficial effects of this utility model. It should be understood that the above description is only a specific embodiment of this utility model and is not intended to limit this utility model. 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 filter tip with a watermelon-like structure and appearance, characterized in that, include: A truncated cooling section, a filter rod section with a watermelon-like structure and appearance, and splicing paper wrapped around the truncated cooling section and the filter rod section are connected in sequence. The filter rod segment includes an inner core with a structure similar to watermelon flesh and an outer shell with the appearance of watermelon rind. The inner core has multiple orderly distributed through holes. The opening end of each through hole has a teardrop-shaped structure that is narrow at one end and wide at the other end. The color of the watermelon seeds is created by contrasting the color of the opening end with the color of the surrounding inner core.

2. The filter tip according to claim 1, characterized in that, The thickness of the outer shell is 6%-30% of the diameter of the filter rod segment.

3. The filter tip according to claim 1, characterized in that, The interception and cooling section is a cellulose acetate bundle section or a hollow section; The cellulose acetate bundle segment includes cellulose acetate bundles.

4. The filter tip according to claim 3, characterized in that, The cellulose acetate bundle segment also includes a fragrance thread located at the center of the cellulose acetate bundle segment.

5. The filter tip according to claim 4, characterized in that, The filter tip contains watermelon-flavored flavoring.

6. The filter tip according to claim 5, characterized in that, The watermelon-flavored flavoring is added to at least one of the hollow section, cellulose acetate tow, flavoring thread, and filter rod section.

7. The filter tip according to claim 1, characterized in that, The total length of the filter tip is 10-30mm, the length of the filter rod section is 4-26mm, and the remainder is the interception and cooling section.

8. The filter tip according to claim 1, characterized in that, The circumference of the through hole is 1.8-10mm, the number of through holes is 4-20, and the total area of ​​all through holes is 5-60% of the total area of ​​the end face of the filter rod segment.

9. The filter tip according to claim 1, characterized in that, The filter rod segment is made of two layers of different colored materials, wherein the inner core is the same as or similar to the color of the watermelon flesh, and the outer shell is the same as or similar to the color of the watermelon rind; The filter rod segment is an integral structure, or it is composed of the inner core and the outer shell.

10. The filter tip according to claim 1, characterized in that, When the filter rod section includes an inner core material, a layer of molded paper is wrapped around the outer surface of the inner core as an outer shell, or the splicing paper is used as an outer shell.

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