LIQUID ABSORBING COTTON, METHOD FOR PREPARING LIQUID-ABSORBING COTTON, AND ELECTRONIC ATOMIZATION DEVICE

Abstract

The present application provides a liquid absorbing cotton, a method for preparing a liquid absorbing cotton, and an electronic atomization device. The liquid absorbing cotton is configured to be in an annular layered structure and includes: a first cotton body arranged at an innermost layer and a second cotton body arranged outside the first cotton body; the first cotton body is formed with through holes, and a density of the first cotton body is less than a density of the second cotton body. The diffusion and transfer effect of the liquid on the liquid absorbing cotton is good, and the liquid absorption performance is well, and is conducive to reducing the risk of leakage in the atomizer.

Claims

1. A liquid absorbing cotton (1), configured to be in an annular layered structure, and comprising: a first cotton body (101), arranged at an innermost layer; and a second cotton body (102), arranged outside the first cotton body (101); wherein the first cotton body (101) is formed with through holes (7), and a density of the first cotton body (101) is less than a density of the second cotton body (102).

2. The liquid absorbing cotton (1) according to claim 1, wherein a fiber distribution of the first cotton body (101) is arranged in a horizontal direction; and/or a fiber distribution of the second cotton body (102) is arranged in a horizontal direction.

3. The liquid absorbing cotton (1) according to claim 1, wherein a thickness of the second cotton body (102) is configured to be greater than or equal to a thickness of the first cotton body (101).

4. The liquid absorbing cotton (1) according to claim 3, wherein a thickness range of the first cotton body (101) is configured to be: 0.5 mm to 5 mm; and/or a thickness range of the second cotton body (102) is configured to be: 0.5 mm to 5 mm.

5. The liquid absorbing cotton (1) according to claim 1, wherein a density range of the first cotton body (101) is configured to be: 50 kg/m.sup.3 to 200 kg/m.sup.3; and/or a density range of the second cotton body (102) is configured to be: 150 kg/m.sup.3 to 300 kg/m.sup.3.

6. The liquid absorbing cotton (1) according to claim 1, wherein the second cotton body (102) is provided with a caulking groove (8) for accommodating the first cotton body (101), a peripheral shape of the caulking groove (8) is configured to match an outer peripheral shape of the first cotton body (101); and the first cotton body (101) is embedded in the caulking groove (8).

7. The liquid absorbing cotton (1) according to claim 6, wherein the caulking groove (8) is configured to be in an interference fit with the first cotton body (101).

8. The liquid absorbing cotton (1) according to claim 6, wherein an outer periphery of the first cotton body (101) is connected to an inner periphery of the caulking groove (8) of the second cotton body (102).

9. The liquid absorbing cotton (1) according to claim 1, wherein fibers used for the first cotton body (101) and the second cotton body (102) are one or a mixture of multiple types selected from a group of a natural fiber, a renewable fiber, and a synthetic fiber.

10. The liquid absorbing cotton (1) according to claim 1, wherein the liquid absorbing cotton (1) further comprises at least one third cotton body covering an outside of the second cotton body (102), each of the at least one third cotton body is arranged in a nested layer-by-layer manner; a density of any of the at least one third cotton body is greater than the density of the second cotton body (102), and the density of each of the at least one third cotton body shows an increasing trend in a direction from an inside to an outside of the liquid absorbing cotton (1).

11. A method for preparing a liquid absorbing cotton (1) according to claim 1, comprising following steps: preparing a first cotton body (101); obtaining first fibers, and performing, in a horizontal direction, web-laying of the first fibers along a first direction (X), stretching along a second direction (Y), reinforcing and shaping, and cutting, to obtain the first cotton body (101) having through holes (7) at a central position; wherein the first direction (X) and the second direction (Y) form an angle; preparing a second cotton body (102); obtaining second fibers, and performing, in the horizontal direction, web-laying of the second fibers along the first direction (X), stretching along the second direction (Y), reinforcing and shaping, and cutting, to obtain the second cotton body (102) having a density greater than a density of the first cotton body (101); forming a caulking groove (8) for accommodating the first cotton body (101) on the second cotton body (102); and combining the first cotton body (101) and the second cotton body (102) together; embedding the first cotton body (101) into the caulking groove (8) of the second cotton body (102), such that an outer periphery of the first cotton body (101) contacts an inner periphery of the caulking groove (8) of the second cotton body (102).

12. The method for preparing the liquid absorbing cotton (1) according to claim 11, wherein said performing web-laying of the first fibers along the first direction (X), stretching along the second direction (Y), reinforcing and shaping, and cutting, comprises: the first direction (X) being perpendicular to the second direction (Y), and during the cutting process, one of the first direction (X) and the second direction (Y) is taken as a length direction of the first cotton body (101), and another one of the first direction (X) and the second direction (Y) is taken as a width direction of the first cotton body (101).

13. The method for preparing the liquid absorbing cotton (1) according to claim 12, wherein a breaking strength value of the first cotton body (101) in the first direction (X) is D1, and a breaking strength value of the first cotton body (101) in the second direction (Y) is D2; wherein an aspect ratio of the first cotton body (101) to be cut is equal to 1, and D1/D2 tends towards 1; or wherein an aspect ratio of the first cotton body (101) to be cut is greater than 1, the first direction (X) is the length direction of the first cotton body (101), and D1/D2 is greater than 1; or wherein an aspect ratio of the first cotton body (101) to be cut is greater than 1, the second direction (Y) is the length direction of the first cotton body (101), and D1/D2 is less than 1.

14. The method for preparing the liquid absorbing cotton (1) according to claim 11, wherein said performing web-laying of the second fibers along the first direction (X), stretching along the second direction (Y), reinforcing and shaping, and cutting, comprises: the first direction (X) being perpendicular to the second direction (Y), and during the cutting process, one of the first direction (X) and the second direction (Y) is taken as a length direction of the second cotton body (102), and another one of the first direction (X) and the second direction (Y) is taken as a width direction of the second cotton body (102).

15. The method for preparing the liquid absorbing cotton (1) according to claim 14, wherein a distance along the first direction (X) between an outer edge of the second cotton body (102) and an outer edge of the first cotton body (101) is L1, and a distance along the second direction (Y) between the outer edge of the second cotton body (102) and the outer edge of the first cotton body (101) is L2; wherein the L1 is equals to the L2, and a breaking strength value of the second cotton body (102) in the first direction (X) approaches a breaking strength value of the second cotton body (102) in the second direction (Y); or wherein the L1 is greater than the L2, and a breaking strength value of the second cotton body (102) in the first direction (X) is greater than a breaking strength value in the second direction (Y); or wherein the L1 is less than the L2, and a breaking strength value of the second cotton body (102) in the first direction (X) is less than a breaking strength value in the second direction (Y).

16. The method for preparing the liquid absorbing cotton (1) according to claim 11, wherein said forming the caulking groove (8) for accommodating the first cotton body (101) on the second cotton body (102) comprises: forming the caulking groove (8) matching a contour shape of the outer periphery of the first cotton body (101) at the central position on the second cotton body (102), wherein the caulking groove (8) is configured to be in an interference fit with the first cotton body (101).

17. The method for preparing the liquid absorbing cotton (1) according to claim 11, wherein after said embedding the first cotton body (101) into the caulking groove (8) of the second cotton body (102), such that the outer periphery of the first cotton body (101) contacts the inner periphery of the caulking groove (8) of the second cotton body (102), the method further comprises: connecting the first fibers at the outer periphery of the first cotton body (101) with the second fibers at the inner periphery of the caulking groove (8) of the second cotton body (102).

18. The method for preparing the liquid absorbing cotton (1) according to claim 17, wherein said connecting the first fibers at the outer periphery of the first cotton body (101) with the second fibers at the inner periphery of the caulking groove (8) of the second cotton body (102) comprises: connecting the first fibers at the outer periphery of the first cotton body (101) with the second fibers at the inner periphery of the caulking groove (8) of the second cotton body (102) by one or more processes selected from a group of a needle punching, a hydroentangling, a thermal bonding, and a chemical bonding.

19. The method for preparing the liquid absorbing cotton (1) according to claim 17, wherein said connecting the first fibers at the outer periphery of the first cotton body (101) with the second fibers at the inner periphery of the caulking groove (8) of the second cotton body (102) comprises: connecting the first fibers at the outer periphery of the first cotton body (101) with the second fibers at the inner periphery of the caulking groove (8) of the second cotton body (102) by a needle punching and/or a hydroentangling, wherein an angle between the needle punching direction and a horizontal plane ranges from 0 to 90.

20. An electronic atomization device (2000), comprising a power supply assembly (3000) and an atomizer (1000); wherein the atomizer (1000) comprises a housing assembly (2), an atomization core (3) arranged within the housing assembly (2), and a liquid absorbing cotton (1); wherein the liquid absorbing cotton (1) is configured to be in an annular layered structure, and comprises: a first cotton body (101), arranged at an innermost layer; and a second cotton body (102), arranged outside the first cotton body (101); the first cotton body (101) is formed with through holes (7), and a density of the first cotton body (101) is less than a density of the second cotton body (102); and wherein the housing assembly (2) is provided with a nozzle portion (4), and an air outlet channel (5) communicating between the atomization core (3) and the nozzle portion (4), and a liquid storage reservoir (6) for storing an aerosol matrix are formed inside the housing assembly (2), the liquid storage reservoir (6) is configured for supplying liquid to the atomization core (3); the liquid absorbing cotton (1) is horizontally disposed at a confluence of the air outlet channel (5) and the nozzle portion (4), and the through holes (7) of the liquid absorbing cotton (1) communicates with the air outlet channel (5); the power supply assembly (3000) is configured for supplying power to the atomization core (3).

Description

BRIEF DESCRIPTION OF THE DRAWINGS

[0045] In order to explain the embodiments of the present application more clearly, a brief introduction regarding the accompanying drawings that need to be used for describing the embodiments of the present application or the prior art is given below; it is obvious that the accompanying drawings described as follows are only some embodiments of the present application, for those skilled in the art, other drawings can also be obtained according to the current drawings on the premise of paying no creative labor.

[0046] FIG. 1 is a cross-sectional structural schematic diagram of an electronic atomization device provided by an embodiment of the present application;

[0047] FIG. 2 is an enlarged view of a part A in FIG. 1;

[0048] FIG. 3 is a structural schematic diagram of a liquid absorbing cotton provided in an embodiment of the present application;

[0049] FIG. 4 is a structural schematic diagram of a first cotton body and a second cotton body of a liquid absorbing cotton provided in an embodiment of the present application;

[0050] FIG. 5 is a structural schematic diagram of a liquid absorbing cotton provided by another embodiment of the present application;

[0051] FIG. 6 is a structural schematic diagram of a liquid absorbing cotton provided by a further embodiment of the present application;

[0052] FIG. 7 is a flowchart schematic diagram of a method for preparing a liquid absorbing cotton by an embodiment of the present application;

[0053] FIG. 8 is a cross-sectional view of a first cotton body on a horizontal plane provided by an embodiment of the present application, wherein an aspect ratio of the first cotton body is equal to 1;

[0054] FIG. 9 is a cross-sectional view of a first cotton body on a horizontal plane provided by another embodiment of the present application, wherein an aspect ratio of the first cotton body is greater than 1;

[0055] FIG. 10 is a cross-sectional view of a liquid absorbing cotton on a horizontal surface provided by an embodiment of the present application, where L1>L2;

[0056] FIG. 11 is a cross-sectional view of the liquid absorbing cotton on a horizontal surface provided by another embodiment of the present application, where L1<L2; and

[0057] FIG. 12 is a cross-sectional view of the liquid absorbing cotton on a horizontal surface provided by a further embodiment of the present application, where L1=L2.

[0058] In the Drawings, the numerals are listed as following:

[0059] 1000atomizer; 2000electronic atomization device; 3000power supply assembly; 3001battery; 1liquid absorbing cotton; 11annular layer; 101first cotton body; 102second cotton body; 2housing assembly; 3atomization core; 4nozzle portion; 401nozzle channel; 5air outlet channel; 6liquid storage reservoir; 7through hole; 8caulking groove; Xfirst direction; and Ysecond direction.

DESCRIPTION OF THE EMBODIMENTS

[0060] The following describes the embodiments of the present application in detail. Examples of these embodiments are illustrated in the accompanying drawings, wherein like or similar reference signs throughout denote like or similar elements or elements having like or similar functions. The embodiments described herein with reference to the drawings are exemplary and are intended to explain the present application, but should not be construed as limiting to the present application.

[0061] Unless otherwise specified, all embodiments and optional embodiments of the present application may be combined to form new technical solutions.

[0062] Unless otherwise specified, all technical features and optional technical features of the embodiments of the present application may be combined to form new technical solutions.

[0063] In the description of the embodiments of the present application, it should be understood that directional or positional relationships indicated by terms such as length, width, upper, lower, front, rear, left, right, vertical, horizontal, top, bottom, inner, outer, etc., are based on the directional or positional relationships shown in the drawings. These terms are used solely for the purpose of facilitating the description of the present application and simplifying the description, and do not indicate or imply that the referred devices or elements must have a particular orientation or be constructed and operated in a particular orientation. Therefore, they should not be construed as limiting the present application.

[0064] Furthermore, the terms first and second are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined as first or second may explicitly or implicitly include one or more of those features.

[0065] In the description of the embodiments of the present application, a plurality means two or more. Unless explicitly and specifically defined otherwise, two or more includes two. Correspondingly, a plurality of groups means two or more groups, including two groups.

[0066] In the description of the embodiments of the present application, unless explicitly defined and limited otherwise, terms such as mounted, connected, joined, fixed, etc., should be interpreted broadly. For example, a connection may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection, an electrical connection, or a direct connection; it may be connected directly, or indirectly through an intermediary, or it may be the internal communication between two elements or the interaction relationship between two elements. Those of ordinary skill in the art may interpret these terms in the present application according to specific situations.

[0067] In the description of the present application, the term and/or is merely an association relationship describing associated objects, indicating that three relationships may exist. For example, A and/or B may indicate: the existence of A alone, the coexistence of A and B, or the existence of B alone. Additionally, in the present application, the character / generally indicates that the associated objects before and after it are in an or relationship.

[0068] In the description of the embodiments of the present application, unless explicitly defined and limited otherwise, the technical terms proximate and adjacent mean being close in position. For example, for three components A1, A2, and B, if the distance between A1 and B is greater than the distance between A2 and B, then A2 is closer to B than A1 is, meaning A2 is proximate to B, or B is proximate to A2; in other words, A2 is adjacent to B. As another example, if there are multiple C components, C1, C2, . . . . CN, and one of them, such as C2, is closer to component B than the other C components, then B is proximate to C2, or C2 is proximate to B; in other words, C2 is adjacent to B.

[0069] Although the present application has been described with reference to preferred embodiments, various modifications may be made thereto and equivalents may be substituted for components therein without departing from the scope of the present application. In particular, as long as there is no structural conflict, the various technical features mentioned in the embodiments may be combined in any manner. The present application is not limited to the specific embodiments disclosed herein but includes all technical solutions falling within the scope of the claims.

[0070] An electronic atomization device primarily consists of an atomizer and a power supply assembly. The atomizer generally includes a liquid storage reservoir, an atomization core, an air outlet channel, a liquid absorbing cotton, and a nozzle portion. The liquid storage reservoir is used to store the liquid aerosol matrix. The atomization core is used to heat and atomize the liquid aerosol matrix to form an aerosol for inhalation by the user. The liquid absorbing cotton is positioned at the confluence of the air outlet channel and the nozzle portion and serves to absorb condensate generated during the atomization process.

[0071] Current liquid absorbing cotton is often fabricated into sheets, coils, or tubes using fibers and formed through punching and cutting. The overall density of the liquid absorbing cotton is uniform. During liquid absorption, liquid diffuses gradually and evenly throughout the liquid absorbing cotton, resulting in a relatively low liquid absorption rate and poor transfer effectiveness of the liquid within the liquid absorbing cotton. Furthermore, due to differences in manufacturing processes, the fibers in some existing liquid absorbing cotton exhibit a predominantly longitudinal orientation. This leads to inadequate liquid transfer effectiveness on the horizontal plane, impacting the liquid absorption rate and potentially causing condensate leakage at the nozzle portion.

[0072] Based on this, in order to solve the aforementioned problems, the present application designs a liquid absorbing cotton, through the density of each layer of the liquid absorbing cotton increasing successively from the inside to the outside, after the first cotton body absorbs a certain amount of liquid, the liquid absorbed by the first cotton body will be actively and continuously transferred to the second cotton body driven by the density difference and the capillary action of the fibers, and the liquid can rapidly diffuse from the inside to the outside to each layer of the liquid absorbing cotton. The diffusion and transfer effect of the liquid on the liquid absorbing cotton is good, and the liquid absorption rate is effectively increased. Thus, when applied to an atomizer, the liquid absorbing cotton exhibits superior absorption performance, significantly reducing the risk of leakage in the atomizer.

[0073] The following detailed description is provided in confluence with specific drawings and embodiments:

[0074] As shown in FIG. 1, the electronic atomization device 2000 provided in the embodiment includes a power supply assembly 3000 and an atomizer 1000. The power supply assembly 3000 supplies power to the atomizer 1000. The power supply assembly includes a battery 3001 for powering the atomizer 1000. The battery is electrically connected to the atomizer 1000 through internal wiring and/or electrical connectors such as a thimble connector.

[0075] Specifically, the power supply assembly 3000 also includes a suction sensing assembly. The suction sensing assembly includes a microphone and is used to detect and sense changes in suction airflow to determine whether to activate the atomizer 1000.

[0076] As shown in FIG. 1 and FIG. 2 together. The atomizer 1000 provided in the embodiment includes a housing assembly 2, an atomization core 3, and the liquid absorbing cotton 1. Both the atomization core 3 and the liquid absorbing cotton 1 are arranged within the housing assembly 2. The housing assembly 2 is provided with a nozzle portion 4, and an air outlet channel 5 and a liquid storage reservoir 6 are formed inside the housing assembly 2. The air outlet channel 5 communicates the atomization core 3 to the nozzle portion 4. The liquid storage reservoir 6 is used for storing an aerosol matrix and supplies the aerosol matrix to the atomization core 3. The liquid absorbing cotton 1 is horizontally arranged at the confluence of the air outlet channel 5 and the nozzle portion 4, the through holes 7 of the liquid absorbing cotton 1 communicates with the air outlet channel 5.

[0077] Specifically, the atomization core 3 heats and atomizes the aerosol matrix stored in the liquid storage reservoir 6 to generate an aerosol for user inhalation. The aerosol enters the nozzle portion 4 through the air outlet channel 5. The nozzle portion 4 is provided with a nozzle channel 401. The liquid absorbing cotton 1 is arranged between the air outlet channel 5 and the nozzle channel 401. It can be understood that during the flow of aerosol from the air outlet channel 5 into the nozzle channel 401, there exists a phenomenon where aerosols condense to form condensate. If the condensate is not absorbed promptly, leakage may occur at the nozzle portion 4, negatively impacting the user experience. Therefore, the liquid absorbing cotton 1 is arranged to absorb condensate in a timely manner, reducing the risk of leakage.

[0078] As shown in FIG. 2 to FIG. 6 together. The liquid absorbing cotton 1 provided in the embodiment features an annular layered structure, including a first cotton body 101 arranged at an innermost layer and a second cotton body 102 arranged outside the first cotton body 101. The first cotton body 101 is provided with through holes 7, and a density of the first cotton body 101 is lower than that of the second cotton body 102.

[0079] It can be understood that the liquid absorbing cotton 1 includes, but is not limited to, the first cotton body 101 and the second cotton body 102. Additional cotton bodies may be arranged outside the second cotton body 102 to form further annular layers 11. In other words, the liquid absorbing cotton 1 may include two or more annular layers 11. As an example, shown in FIG. 2 to FIG. 6, the liquid absorbing cotton 1 has only two annular layers 11, that is, forming a liquid absorbing cotton 1 with a double-layered structure composed of the first cotton body 101 and the second cotton body 102.

[0080] In some possible designs, the aerosol matrix is e-liquid.

[0081] Each annular layer 11 may include one or a mixture of oil-absorbent materials such as an oil absorbing cotton, an oil absorbing felt, an oil absorbing paper film, or sponge, which has good oil absorption. As an example, all annular layers 11 of the liquid absorbing cotton 1 are made of oil absorbing cotton.

[0082] A single annular layer 11 may include a cotton body of a uniform material, so as to ensure relatively even density distribution within the single annular layer 11 and enable an effective density difference between the annular layers. Alternatively, a single layer 11 may be formed by connecting cotton bodies of different materials, which is not specifically limited here.

[0083] As shown in FIG. 3 and FIG. 4, the first cotton body 101 and the second cotton body 102 may be separate structures assembled together to form the liquid absorbing cotton 1 after individual molding. Alternatively, the first cotton body 101 and the second cotton body 102 may be integrally formed as a single structure.

[0084] The density of the first cotton body 101 is lower than that of the second cotton body 102, that is, a density difference is formed therebetween. The fiber distribution in the second cotton body 102 is denser than that in the first cotton body 101. During atomization in the atomizer 1000, the first cotton body 101 first contacts condensate at the inner periphery of the through holes 7 and absorbs the condensate. After absorbing a certain amount of liquid, the liquid captured by the first cotton body 101 will actively and continuously transfer to the surrounding second cotton body 102 driven by the density difference and fibrous capillary action. This facilitates rapid radial diffusion of liquid horizontally outward from the center of the liquid absorbing cotton 1, and the liquid absorption rate and effectiveness are improved.

[0085] It can be understood that both the first cotton body 101 and the second cotton body 102 possess oil-locking capacity and oil-storage capacity. The oil-locking capacity refers to the ability to retain liquid and prevent dripping. The oil-storage capacity refers to the ability to hold and contain the atomization liquid. Under the same volume conditions, the greater the density of the cotton body, the denser the fibers of the cotton body, the more contact the liquid has with the fibers in the cotton body, the stronger the adsorption (capillary) effect between the liquid and the fibers in the cotton body, and the easier the liquid is to be locked in the cotton body. The lower the density of cotton body, the sparser the fibers of the cotton body, the cotton body of the same volume has more voids in its micro-structure, and more liquid can be stored in the cotton body. Therefore, comparing the first cotton body 101 (inner layer) and the second cotton body 102 (outer layer) of the same volume, the first cotton body 101 (inner layer) has a stronger oil-storage capacity because the density of which is less than that of the second cotton body 102. That is, the first cotton body 101 comes into contact with the condensate first and can quickly absorb a larger amount of liquid in a short time. The second cotton body 102 has a stronger oil-locking capacity, thus after the liquid is transferred from the first cotton body 101 to the second cotton body 102, it is less likely to drip or leak. That is, the liquid absorbing cotton 1 provided in the embodiments of the present application, by combining the first cotton body 101 with the second cotton body 102, the liquid absorption rate and oil absorption volume can be fully enhanced, and the risk of leakage of the atomizer 1000 is reduced.

[0086] In the liquid absorbing cotton 1 provided by the present application, since the densities of the annular layers 11 progressively increase from the innermost to the outermost, once the first cotton body 101 at the innermost layer absorbs a certain amount of liquid, the captured liquid will actively and continuously transfer to the outer second cotton body 102 driven by the density difference and fibrous capillary action. This allows the liquid to rapidly diffuse radially outward across the annular layers of the liquid absorbing cotton 1, which results in excellent diffusion and transfer performance and effectively increasing the liquid absorption rate.

[0087] In some embodiments, the fibers of the first cotton body 101 are horizontally distributed.

[0088] In some embodiments, the fibers of the second cotton body 102 are horizontally distributed.

[0089] It can be understood that as shown in FIG. 2, the liquid absorbing cotton 1 is horizontally arranged within the atomizer 1000. After the liquid absorbing cotton 1 absorbs liquid at the through holes 7, the liquid diffuses and transfers outward horizontally. If the horizontal diffusion performance of the liquid on the liquid absorbing cotton 1 is poor, the liquid absorption rate will be effected, which is easy to lead to condensate leakage at the nozzle portion 4. Therefore, enhancing the horizontal diffusion capability of liquid on the liquid absorbing cotton 1 is crucial.

[0090] Specifically, both the first cotton body 101 and the second cotton body 102 can be initially formed using a fiber web-laying formation process, the web-laying formation process involves mechanically interlocking or bonding fibers together to create a uniform non-woven fiber web. Subsequently, the non-woven fiber web is reinforced and shaped using one or more processes such as a needle punching, a hydroentangling, a thermal bonding, or a chemical bonding, so as to obtain a non-woven fabric with a relatively firm structure, good dimensional stability and elasticity. By adopting the web-laying formation process, the fibers of the first cotton body 101 and the second cotton body 101 will be distributed horizontally. That is, horizontal and continuous capillary pathways can be formed between the fibers within the first cotton body 101 and the second cotton body 102, enhancing the oil conduction rate of the liquid absorbing cotton 1 and facilitating the rapid transfer of the liquid on the horizontal surface, and enhancing the horizontal diffusion capacity of the liquid on the liquid absorbing cotton 1.

[0091] In some embodiments, refer to FIG. 3 and other figures, the thickness of the second cotton body 102 is configured to be greater than or equal to the thickness of the first cotton body 101.

[0092] It can be understood that the first cotton body 101 is embedded within the second cotton body 102. The second cotton body 102 fully envelops the first cotton body 101, the liquid absorbed by the first cotton body 101 can transfer to the surrounding second cotton body 102, so as to improve the diffusion effect of the liquid on the liquid absorbing cotton.

[0093] In some embodiments, the thickness range of the first cotton body 101 is configured as: 0.5-5 mm.

[0094] Specifically, the thickness of the first cotton body 101 can be set to any one selected from a group of 0.5 mm, 1 mm, 1.5 mm, 2 mm, 2.5 mm, 3 mm, 3.5 mm, 4 mm, 4.5 mm, and 5 mm.

[0095] In some embodiments, the thickness range of the second cotton body 102 is configured as: 0.5-5 mm.

[0096] Specifically, the thickness of the second cotton body 102 can be set to any one selected from a group of 0.5 mm, 1 mm, 1.5 mm, 2 mm, 2.5 mm, 3 mm, 3.5 mm, 4 mm, 4.5 mm, and 5 mm.

[0097] In some embodiments, the density range of the first cotton body 101 is configured as: 50-200 kg/m.sup.3. Specifically, the density of the first cotton body 101 can be set to any one selected from a group of 50 kg/m.sup.3, 70 kg/m.sup.3, 75 kg/m.sup.3, 100 kg/m.sup.3, 125 kg/m.sup.3, 150 kg/m.sup.3, 175 kg/m.sup.3, and 200 kg/m.sup.3.

[0098] In some embodiments, the density range of the second cotton body 102 is configured as: 150-200 kg/m.sup.3. Specifically, the density of the second cotton body 102 can be set to any one selected from a group of 150 kg/m.sup.3, 160 kg/m.sup.3, 170 kg/m.sup.3, 180 kg/m.sup.3, 190 kg/m.sup.3, and 200 kg/m.sup.3.

[0099] By configuring the density of the second cotton body 102 to be greater than that of the first cotton body 101, a density difference is formed between them, such that liquid absorbed by the first cotton body 101 is actively and continuously transferred to the surrounding second cotton body 102 under the driving of the density difference and fiber capillary action. This facilitates rapid radial diffusion of liquid from the center towards the periphery of the liquid absorbing cotton 1, so as to improve the liquid absorption rate and achieve a better liquid absorption effect.

[0100] In some embodiments, as shown in FIGS. 3-6 and other figures, the second cotton body 102 is provided with a caulking groove 8 for accommodating the first cotton body 101. The peripheral shape of the caulking groove 8 is configured to match the outer peripheral shape of the first cotton body 101. The first cotton body 101 is embedded within the caulking groove 8.

[0101] It can be understood that the caulking groove 8 is located at the center of the second cotton body 102, allowing the first cotton body 101 to be embedded within the caulking groove 8. The caulking groove 8 is specifically a hollowed-out groove.

[0102] Specifically, as shown in FIGS. 4-6, both the first cotton body 101 and the second cotton body 102 are separate cotton body structures, that is, the first cotton body 101 and the second cotton body 102 are of a split structure. After manufacturing the first cotton body 101 and the second cotton body 102 separately, the first cotton body 101 is inlaid into the caulking groove 8 on the second cotton body 102 to combine them into the liquid absorbing cotton 1. This structural combination is simple and convenient, which facilitates manual assembly, and reduces product manufacturing costs.

[0103] The outer peripheral shape of the first cotton body 101 can be a circular, an elliptical, a polygonal, or any other shape, which is not specifically limited herein. The peripheral shape of the caulking groove 8 is configured to match the outer peripheral shape of the first cotton body 101. Similarly, the outer peripheral shape of the second cotton body 102 can be a circular, an elliptical, a polygonal, or any other shape, as long as it allows the first cotton body 101 to be embedded within the caulking groove 8.

[0104] In some embodiments, the caulking groove 8 is configured to be in an interference fit with the first cotton body 101.

[0105] It can be understood that the first cotton body 101 is interference-fitted within the caulking groove 8. This ensures close contact between the fibers of the first cotton body 101 and the fibers of the second cotton body 102, which is more conducive to liquid transfer from the first cotton body 101 to the second cotton body 102 through the capillary action, so as to enhance the absorption and diffusion capability of the liquid absorbing cotton 1.

[0106] In some embodiments, as shown in FIGS. 3, 5, 6, and other figures, the outer periphery of the first cotton body 101 is connected to the inner periphery of the caulking groove 8 of the second cotton body 102.

[0107] After embedding the first cotton body 101 into the caulking groove 8 of the second cotton body 102, the fibers at the outer periphery of the first cotton body 101 are further connected to the fibers at the inner periphery of the caulking groove 8 of the second cotton body 102.

[0108] Specifically, after embedding the first cotton body 101 into the second cotton body 102, one or more processes such as a needle punching, a hydroentangling, a thermal bonding, or a chemical bonding are used to interlock or bond the fibers of the first cotton body 101 with the fibers of the second cotton body 102. This creates connections between the fibers of the first cotton body and the second cotton body, the structural stability is improved and the first cotton body 101 is effectively prevented from detaching from the recess of the second cotton body 102.

[0109] It can be understood that the fibers at the outer periphery of the first cotton body 101 form connections with the fibers at the inner periphery of the caulking groove 8 of the second cotton body 102. This enhances the capillary action between the fibers of the first cotton body and the second cotton body, and the liquid transfer effect is better.

[0110] In some embodiments, the fibers used for the first cotton body 101 and the second cotton body 102 are selected from one or more mixtures of a natural fiber, a renewable fiber, and a synthetic fiber.

[0111] It can be understood that the material of the first fibers used in the first cotton body 101 is one or more mixtures of a natural fiber, a renewable fiber, and a synthetic fiber. Similarly, the material of the second fibers used in the second cotton body 102 is one or more mixtures of a natural fiber, a renewable fiber, and a synthetic fiber.

[0112] The natural fiber is one or more mixtures selected from a group of a cotton fiber, a hemp fiber, a coir fiber, a wood pulp fiber, a bamboo fiber, a wool fiber, and a silk fiber. The renewable fiber is one or more mixtures selected from a group of a viscose fiber, a lyocell fiber, and a cuprammonium rayon fiber. The synthetic fiber is one or more mixtures selected from a group of a polyethylene terephthalate (PET), a polyethylene (PE), a polypropylene (PP), a polyamide (PA), and a polylactic acid (PLA).

[0113] In some embodiments, the liquid absorbing cotton 1 further includes at least one third cotton body (not shown) enveloping the outer side of the second cotton body 102. These third cotton bodies are nested layer-by-layer. The density of any third cotton body is greater than the density of the second cotton body 102, and in the direction from the inside to the outside of the liquid absorbing cotton 1, the densities of the third cotton bodies exhibit an increasing trend.

[0114] It can be understood that the liquid absorbing cotton 1 can also have a three-layer or multi-layer structure, including at least one third cotton body sleeved outside of the second cotton body 102.

[0115] For example, the liquid absorbing cotton 1 may include one third cotton body, that is, the liquid absorbing cotton 1 is a three-layer structure; alternatively, the liquid absorbing cotton 1 may include two third cotton bodies. The two third cotton bodies are nested layer-by-layer outside the second cotton body 102, thus the liquid absorbing cotton 1 is a four-layer structure.

[0116] Specifically, when the liquid absorbing cotton 1 is a structure of three or more layers, the entire liquid absorbing cotton 1 still satisfies a gradient density distribution across the layers. That is, in the direction from the inside to the outside of the liquid absorbing cotton 1, the density of each annular layer 11 exhibits an increasing trend.

[0117] As shown in FIGS. 3, 4, and 7, along with other figures. The method for preparing the liquid absorbing cotton 1 provided in the embodiments of the present application is applied to the aforementioned liquid absorbing cotton 1. the method for preparing the liquid absorbing cotton 1 includes the following steps:

[0118] S101: preparing a first cotton body 101; and performing, in a horizontal direction, web-laying of the first fibers along a first direction X, stretching along a second direction Y, reinforcing and shaping, and cutting, to obtain the first cotton body 101 having through holes 7 at a central position; wherein the first direction X and the second direction Y form an angle.

[0119] Before web-forming the first fibers, the first fibers can be treated in advance: the first fibers raw material is pre opened by an opener, and the first fibers aggregate after opening is loosened by a carding machine to improve the separation degree of the first fibers while minimizing the loss of the first fibers, so that the first fibers bundle is relatively well divided into single fiber states. This is a routine operation in existing fiber textile technology, which will not be elaborated on further in the present application.

[0120] In the horizontal direction, perform web-forming on the processed first fibers. The web-forming process can be a process using mechanical methods to form the first fibers into a non-woven fiber web with a single or multi-layer structure. It can be understood that the embodiments of the present application use a web-laying machine for fiber web-laying, which is conventional technology in the textile field. The web-laying machine can set the arrangement direction of the first fibers within the formed fiber web. In some possible designs, the first fibers undergo web-forming along the first direction X through a cross web-laying machine, that is, most of the first fibers in the laid web will be arranged along the first direction X.

[0121] Perform stretching fiber web after being web-laid along the second direction Y, some first fibers arranged along the first direction X are pulled into an arrangement along or tending towards the second direction Y, such that the fiber web messy and increase the randomness of the fiber web. The randomness refers to the uniformity of fiber quantity distribution along all directions of the fiber web; a higher randomness indicates more uniform fiber arrangement in all directions. Thus, the first fibers are distributed randomly in all directions. Consequently, within the first cotton body 101 in the horizontal direction, continuous capillary pathways in various directions (including the first direction X and the second direction Y) are formed between the first fibers. This facilitates the lateral transfer and diffusion of liquid from the center towards the periphery on the first cotton body 101 and also enhances the structural strength of the product.

[0122] In some possible designs, the embodiment can configure a random-stretching machine behind the cross web-laying machine. Through the multi-stage, low-ratio stretching action of the random-stretching machine, some first fibers arranged along the first direction X are pulled into an arrangement along or tending towards the second direction Y, such that the fiber web messy. As an example, the random-stretching machine used in the embodiment is equipped with five sets of roller assemblies, so as to form five stretching zones. Each roller assembly includes three rollers. Within one roller assembly, the three rollers form a stretching roller drive system, with the tooth ratio of each roller drive component is set at 38:37:36. The number of stretching zones can be adjusted according to actual needs to ensure fiber straightness and parallelism.

[0123] The second direction Y forms an angle with the first direction X. The angle between the second direction Y and the first direction X can be, but is not limited to, 90, 60, 45, 30, etc.

[0124] After stretching is completed, the fiber web is reinforced and shaped through one or more of the processes such as a needle punching, a hydroentangling, a thermal bonding, or chemical bonding. Thus, a non-woven fabric with a relatively firm structure, good dimensional stability and elasticity is obtained.

[0125] After obtaining the non-woven fabric made from the first fibers, the first cotton body 101 of any desired shape and size can be obtained by cutting the non-woven fabric.

[0126] It can be understood that the shape of the first cotton body 101 can be, but is not limited to, a circular, a rectangular, an oval, or a diamond-shaped.

[0127] As shown in FIGS. 1 and 2, the horizontal direction referred to in the present application is perpendicular to the axial direction of the atomizer 1000. The liquid absorbing cotton 1 is arranged horizontally within the atomizer 1000. After the center of the liquid absorbing cotton 1 initially absorbs condensate, the liquid will diffuse and transfer laterally across the liquid absorbing cotton 1 towards the periphery. The first fibers are randomly distributed in the horizontal direction, that is, multiple capillary pathways arranged in different directions can form between the first fibers within the first cotton body 101 in the horizontal plane. This facilitates the rapid transfer of liquid from the center towards the periphery of the first cotton body 101 within the horizontal plane. Consequently, after the first cotton body 101 absorbs the aerosol matrix, the aerosol matrix can rapidly transfer and diffuse laterally across the first cotton body 101.

[0128] S102: preparing a second cotton body 102; obtaining second fibers, and performing, in the horizontal direction, web-laying of the second fibers along the first direction X, stretching along the second direction Y, reinforcing and shaping, and cutting, to obtain the second cotton body 102 having a density greater than a density of the first cotton body.

[0129] Before web-forming the second fibers, the second fibers can be treated in advance: the second fibers raw material is pre opened by an opener, and the second fibers aggregate after opening is loosened by a carding machine to improve the separation degree of the second fibers while minimizing the loss of the second fibers, so that the second fibers bundle is relatively well divided into single fiber states. This is a routine operation in existing fiber textile technology, which will not be elaborated on further in the present application.

[0130] In the horizontal direction, perform web-forming on the processed second fibers. The web-forming process can be a process using mechanical methods to form the second fibers into a non-woven fiber web with a single or multi-layer structure. It can be understood that the embodiments of the present application use a web-laying machine for fiber web-laying, which is conventional technology in the textile field. The web-laying machine can set the arrangement direction of the second fibers within the formed fiber web. In some possible designs, the second fibers undergo web-forming along the first direction X through a cross web-laying machine, that is, most of the second fibers in the laid web will be arranged along the first direction X.

[0131] In order to enhance the structural strength of the product, perform stretching fiber web after being web-laid along the second direction Y, some first fibers arranged along the first direction X are pulled into an arrangement along or tending towards the second direction Y, such that the fiber web messy and increase the randomness of the fiber web. The randomness refers to the uniformity of fiber quantity distribution along all directions of the fiber web; a higher randomness indicates more uniform fiber arrangement in all directions.

[0132] In some possible designs, the embodiment can configure a random-stretching machine behind the cross web-laying machine. Through the multi-stage, low-ratio stretching action of the random-stretching machine, some first fibers arranged along the first direction X are pulled into an arrangement along or tending towards the second direction Y, such that the fiber web messy. As an example, the random-stretching machine used in the embodiment is equipped with five sets of roller assemblies, so as to form five stretching zones. Each roller assembly includes three rollers. Within one roller assembly, the three rollers form a stretching roller drive system, with the tooth ratio of each roller drive component is set at 38:37:36. The number of stretching zones can be adjusted according to actual needs to ensure fiber straightness and parallelism.

[0133] The second direction Y forms an angle with the first direction X. The angle between the second direction Y and the first direction X can be, but is not limited to, 90, 60, 45, 30, etc.

[0134] After stretching is completed, the fiber web is reinforced and shaped through one or more of the processes such as a needle punching, a hydroentangling, a thermal bonding, or chemical bonding. Thus, a non-woven fabric with a relatively firm structure, good dimensional stability and elasticity is obtained.

[0135] After the non-woven fabric is obtained, the second cotton body 102 of any desired shape and size can be obtained by cutting the non-woven fabric.

[0136] The shape of the second cotton body 102 can be, but is not limited to, a circular, a rectangular, an oval, or a diamond-shaped.

[0137] As shown in FIG. 1, the horizontal direction referred to in the present application is perpendicular to the axial direction of the atomizer 1000. The liquid absorbing cotton 1 is arranged horizontally within the atomizer 1000. After the center of the liquid absorbing cotton 1 initially absorbs condensate, the liquid will diffuse and transfer laterally across the liquid absorbing cotton 1 towards the periphery. Liquid on the first cotton body 101 will transfer towards the periphery onto the second cotton body 102. Since the second fibers are randomly distributed in the horizontal direction, multiple capillary pathways arranged in different directions can form between the second fibers within the second cotton body 102 in the horizontal plane. This facilitates the rapid transfer of liquid across the second cotton body 102 within the horizontal plane. Consequently, after the first cotton body 101 absorbs the aerosol matrix, the aerosol matrix on the first cotton body 101 can rapidly transfer to the second cotton body 102 and diffuse laterally across the second cotton body 102 in all directions.

[0138] S103: forming a caulking groove 8 for accommodating the first cotton body 101 on the second cotton body 102.

[0139] Specifically, after the second cotton body 102 is formed, the caulking groove 8 is arranged at a center position of the second cotton body 102. The first cotton body 101 can be embedded into the recess. The caulking groove 8 is specifically a hollowed-out groove.

[0140] S104: combining the first cotton body 101 and the second cotton body 102 together; embedding the first cotton body 101 into the caulking groove 8 of the second cotton body 102, such that an outer periphery of the first cotton body 101 contacts an inner periphery of the caulking groove 8 of the second cotton body 102.

[0141] Specifically, as shown in FIGS. 3 and 4, both the first cotton body 101 and the second cotton body 102 are separate cotton body structures, that is, the two are of a split structure. After fabricating the first cotton body 101 and the second cotton body 102 separately, the first cotton body 101 is embed into the caulking groove 8 on the second cotton body 102 to combine them and form the liquid absorbing cotton 1. This combination is simple and convenient, facilitating manual assembly and saving product manufacturing costs.

[0142] The method for preparing the liquid absorbing cotton 1 provided in the embodiment of the present application forms a randomness web for the first fibers on the first cotton body 101 within the horizontal plane through separate web-laying and stretching of the first fibers and the second fibers. The first fibers are arranged relatively uniformly in all directions within the horizontal plane, resulting in high randomness. Similarly, a randomness web is formed for the second fibers on the second cotton body 102 within the horizontal plane, with relatively uniform arrangement in all directions and high randomness. Thus, both the first cotton body 101 and the second cotton body 102 can form continuous capillary pathways in all directions within the horizontal plane. This facilitates the transfer and diffusion of atomized liquid across the first cotton body and the second cotton body in all directions within the horizontal plane, and the liquid conduction and diffusion rates of the first cotton body 101 and the second cotton body 102 are effectively improved.

[0143] Furthermore, the density of the first cotton body 101 is less than that of the second cotton body 102, that is, the fibers of the second cotton body 102 are denser than those of the first cotton body 101. When the liquid volume absorbed by the first cotton body 101 reaches a certain level, under the effect of differential wicking, the liquid will rapidly transfer from the first cotton body 101 to the second cotton body 102. That is, the liquid can rapidly transfer from the center to the periphery of the liquid absorbing cotton 1, and the liquid absorption rate and overall performance of the liquid absorbing cotton 1 are effectively improved.

[0144] In some embodiments, the step S101 of performing web-laying of the first fibers along the first direction X, stretching along the second direction Y, reinforcing and shaping specifically includes:

[0145] the first direction X is perpendicular to the second direction Y, and during the cutting process, one of the first direction X and the second direction Y is taken as a length direction of the first cotton body 101, and another one of the first direction X and the second direction Y is taken as a width direction of the first cotton body 101.

[0146] The first direction X is perpendicular to the second direction Y, such that the stretching effect is better, and the randomness of the fiber distribution is higher. During the cutting process, the first cotton body 101 is cut with the first direction X and the second direction Y as the reference, so that the length direction and width direction of the first cotton body 101 can correspond respectively to the first direction X and the second direction Y, and the randomness distribution of the first fibers in the first cotton body 101 is consistent with that of the first fibers in the non-woven fabric. The liquid is more likely to diffuse on the first cotton body 101.

[0147] The length direction of the first cotton body 101 does not specify the extension direction of the longest side of the first cotton body 1 in the horizontal cross-sectional graphic. The length direction usually refers to the direction in which the first cotton body 101 is longer or mainly extends in the horizontal cross-section graphic. The dimensions in this direction are the main components of the horizontal cross-section graphic dimensions of the first cotton body 101 and have an important influence on the overall shape and size of the graphic. The width direction is perpendicular to the length direction. For example, if the horizontal cross-section graphic of the first cotton body 101 is a rectangle, then the length direction refers to the direction where the longer side is located. Alternatively, if the horizontal cross-sectional graphic of the first cotton body 101 is circular, then the length direction is the direction of the diameter within the circle that is parallel to the first direction X or the second direction.

[0148] Defining the breaking strength value of the first cotton body 101 in the first direction X as D1, and in the second direction Y as D2.

[0149] In some embodiments, the required aspect ratio (length/width) of the first cotton body 101 to be cut is equal to 1, and D1/D2 tends to 1.

[0150] As shown in FIG. 8, it can be understood that if the aspect ratio of the first cotton body 101 to be cut is equal to 1, that is, the shape of the first cotton body 101 to be cut is circular, square, regular rhombus, etc. The random-stretching machine is configured. The random-stretching machine adopted in the embodiment of the present application is equipped with five sets of roller assemblies, forming five stretching zones. The stretching ratio of each stretching zone is set at 1.055. Through the stretching process, the arrangement degree of the first fibers in the non-woven fabric after stretching along the first direction X is close to that along the second direction Y. The prepared non-woven fabric is cut along the first direction X or the second direction Y to obtain the first cotton body 101, such that the breaking strength value D1 of the first cotton body 101 in the first direction X is close to the breaking strength value D2 in the second direction Y. In this way, the randomness of the fiber web of the first cotton body 101 is relatively high, and the first fibers are randomly distributed in all directions. Therefore, in the horizontal direction, the first cotton body 101 forms continuous capillary pathways in all directions (including the first direction X and the second direction Y), which is conducive to the transfer and diffusion of the liquid from the center to the periphery in the horizontal direction on the first cotton body 101.

[0151] In other embodiments, the required aspect ratio of the first cotton body 101 to be cut is greater than 1. The first direction X is the length direction of the first cotton body 101, and D1/D2 is greater than 1.

[0152] As shown in FIG. 9, specifically, when the outer contour shape of the required first cotton body 101 to be cut is a rectangular, an oval, etc. (with a clear difference between length and width), and when the length direction of the first cotton body 101 is the first direction X, a random-stretching machine is configured. The random-stretching machine used in the embodiment of the present application is equipped with five sets of roller assemblies forming five stretching zones, the stretching ratio range of each stretching zone is set to 1.307-1.620. The stretching process makes the breaking strength value D1 of the first fibers along the first direction X greater than the breaking strength value D2 along the second direction Y in the resulting non-woven fabric. The non-woven fabric prepared is cut along the first direction X to obtain the first cotton body 101, which means that more of the first fibers in the first cotton body 101 will be arranged along the first direction X. The first cotton body 101 forms more continuous capillary pathways along the first direction X in the horizontal direction. In this way, when the liquid transfers horizontally on the first cotton body 101, the transfer speed of the liquid along the first direction X is faster, which ensures that the transfer speed of the liquid along the length direction of the first cotton body 101 in the horizontal plane is faster, the liquid diffusion rate of the first cotton body 101 is further improved.

[0153] In yet other embodiments, the required aspect ratio of the first cotton body 101 to be cut is greater than 1. The second direction Y is the length direction of the first cotton body 101, and D1/D2 is greater than 1.

[0154] Specifically, when the outer contour shape of the required first cotton body 101 to be cut is a rectangular, an oval, etc. (with a clear difference between length and width), and when the length direction of the first cotton body 101 is the second direction Y, a random-stretching machine is configured. The random-stretching machine used in the embodiment of the present application is equipped with five sets of roller assemblies forming five stretching zones, the stretching ratio range of each stretching zone is set to 1.307-1.620. The stretching process makes the breaking strength value D1 of the first fibers along the first direction X greater than the breaking strength value D2 along the second direction Y in the resulting non-woven fabric. The non-woven fabric prepared is cut along the second direction Y to obtain the first cotton body 101, which means that more of the first fibers in the first cotton body 101 will be arranged along the second direction Y. The first cotton body 101 forms more continuous capillary pathways along the second direction Y in the horizontal direction. In this way, when the liquid transfers horizontally on the first cotton body 101, the transfer speed of the liquid along the second direction Y is faster, which ensures that the transfer speed of the liquid along the length direction of the first cotton body 101 in the horizontal plane is faster, the liquid diffusion rate of the first cotton body 101 is further improved.

[0155] It can be understood that after forming the first cotton body 101 from the first fibers, the through holes 7 is arranged on the first cotton body 101. The size of the through holes 7 is set correspondingly based on the size of the atomizer 1000.

[0156] In some embodiments, performing web-laying of the second fibers along the first direction X, stretching along the second direction Y, reinforcing and shaping, and cutting in step S102 includes the following steps:

[0157] the first direction X is perpendicular to the second direction Y, and during the cutting process, one of the first direction X and the second direction Y is taken as a length direction of the second cotton body 102, and another one of the first direction X and the second direction Y is taken as a width direction of the second cotton body 102.

[0158] Herein, since the first direction X is perpendicular to the second direction Y, the stretching effect is enhanced, such that the randomness of fiber distribution is higher. During cutting, the second cotton body 102 is cut based on the first direction X and the second direction Y, enabling the length and width directions of the second cotton body 102 to correspond to the first direction X and the second direction Y, respectively. This ensures that the randomness distribution of the second fibers in the second cotton body 102 remains consistent with the randomness distribution of the second fibers in the non-woven fabric, which facilitates easier liquid diffusion on the second cotton body 102.

[0159] Herein, the length direction of the second cotton body 102 does not necessarily refer to the extension direction of the longest edge in the horizontal cross-sectional figure of the second cotton body 102. The length direction typically refers to the direction of greater extension or the primary extension direction in the horizontal cross-sectional figure of the second cotton body 102. The size in this direction constitutes the main component of the horizontal cross-sectional figure size of the second cotton body 102 and significantly influences the overall shape and size of the horizontal cross-sectional figure. The width direction is perpendicular to the length direction. For example, if the horizontal cross-sectional figure of the second cotton body 102 is rectangular, the length direction refers to the direction of the longer side; or, if the horizontal cross-sectional figure is circular, the length direction refers to the direction of the diameter within the circle that is parallel to the first direction X or the second direction Y.

[0160] Along the first direction X, the distance between the outer edge of the second cotton body 102 and the outer edge of the first cotton body 101 is L1. Along the second direction Y, the distance between the outer edge of the second cotton body 102 and the outer edge of the first cotton body 101 is L2.

[0161] In some embodiments, as shown in FIG. 12 and other figures, L1 is equal to L2, and the breaking strength value of the second cotton body 102 in the first direction X approaches that of in the second direction Y.

[0162] It can be understood that L1 being equal to L2 means the outer edges of the second cotton body 102 and the first cotton body 101 tend to be equidistant. After liquid transfers from the first cotton body 101 to the second cotton body 102, the transfer range of the liquid within the second cotton body 102 in the first direction X approaches the transfer range of the liquid in the second direction Y. A random-stretching machine is configured. The random-stretching machine used in the embodiment of the present application is equipped with five sets of roller assemblies forming five stretching zones, the stretching ratio range of each stretching zone is set to 1.055. Through the stretching process, the alignment degree of the second fibers along the first direction X in the stretched non-woven fabric approaches that of the first fibers along the second direction Y. The second cotton body 102 can be obtained by cutting the prepared non-woven fabric, that is, the breaking strength values of the second cotton body 102 in the first direction X approaches the breaking strength values of the second cotton body 102 in the second direction Y. Consequently, the second cotton body 102 forms continuous capillary pathways in all horizontal directions (including the direction X and the direction Y), which facilitates the radial transfer and diffusion of liquid from the outer edge of the first cotton body 101 across the second cotton body 102.

[0163] In other embodiments, as shown in FIG. 10 and other figures, L1 is greater than L2, and the breaking strength value of the second cotton body 102 in the first direction X is greater than the breaking strength value of the second cotton body 102 in the second direction Y.

[0164] It can be understood that by arranging L1 greater than L2, after the liquid is transferred from the first cotton body 101 to the second cotton body 102, the transfer area of the liquid in the second cotton body 102 in the first direction X is greater than that of in the second direction Y. A random-stretching machine is configured, the random-stretching machine used in the embodiment of the present application is equipped with five sets of roller assemblies forming five stretching zones, the stretching ratio range of each stretching zone is set to 1.307-1.620. The stretching process makes the breaking strength value D1 of the first fibers along the first direction X greater than the breaking strength value D2 along the second direction Y in the resulting non-woven fabric. The non-woven fabric prepared is cut along the first direction X to obtain the second cotton body 102, which means that more of the second fibers in the second cotton body 102 will be arranged along the first direction X. The second cotton body 102 forms more continuous capillary pathways along the first direction X in the horizontal direction. In this way, when the liquid transfers horizontally on the second cotton body 102, the transfer speed of the liquid along the first direction X is faster, which ensures that the transfer speed of the liquid along the length direction of the second cotton body 102 in the horizontal plane is faster, the liquid diffusion rate of the second cotton body 102 is further improved.

[0165] In some embodiments, as shown in FIG. 11 and other figures, L1 is less than L2, and the breaking strength value of the second cotton body 102 in the first direction X is less than that of in the second direction Y.

[0166] Specifically, by arranging L1 less than L2, after the liquid is transferred from the first cotton body 101 to the second cotton body 102, the transfer area of the liquid in the second cotton body 102 in the first direction X is less than that of in the second direction Y. In this way, a random-stretching machine is configured, the random-stretching machine used in the embodiment of the present application is equipped with five sets of roller assemblies forming five stretching zones, the stretching ratio range of each stretching zone is set to 1.307-1.620. The stretching process makes the breaking strength value D1 of the first fibers along the first direction X less than the breaking strength value D2 along the second direction Y in the resulting non-woven fabric. The obtained non-woven fabric is cut along the second direction to obtain the second cotton body 102. The breaking strength value of the second cotton body 102 in the first direction X is less than that in the second direction Y. That is, more of the second fibers in the second cotton body 102 will be arranged along the second direction Y. The second cotton body 102 forms more continuous capillary pathways along the first direction X in the horizontal direction. In this way, when the liquid transfers horizontally on the second cotton body 102, the transfer speed of the liquid along the second direction Y is faster, which ensures that the transfer speed of the liquid along the second direction Y of the second cotton body 102 is faster, the liquid diffusion rate of the second cotton body 102 is further improved.

[0167] In some embodiments, forming the caulking groove 8 on the second cotton body 102 for accommodating the first cotton body 101 in the step S103 includes:

[0168] forming the caulking groove 8 matching a contour shape of the outer periphery of the first cotton body 101 at the central position on the second cotton body 102, and the caulking groove 8 is configured to be in an interference fit with the first cotton body 101.

[0169] It can be understood that the first cotton body 101 is in the interference fit with the caulking groove 8, such that the first fibers of the first cotton body 101 is in close contact with the second fibers of the second cotton body 102; which is more conducive to the transfer of liquid from the first cotton body 101 to the second cotton body 102 under capillary action, thereby enhancing the liquid absorption and diffusion capacity of the liquid absorbing cotton 1.

[0170] In some embodiments, after step S104 of embedding the first cotton body 101 into the caulking groove 8 of the second cotton body 102 such that the outer periphery of the first cotton body 101 contacts the inner periphery of the caulking groove 8, the method further includes:

[0171] connecting the first fibers at the outer periphery of the first cotton body 101 with the second fibers at the inner periphery of the caulking groove 8 of the second cotton body 102.

[0172] It can be understood that the first fibers of the first cotton body 101 located on the outer periphery and the second fibers of the second cotton body 102 located on the inner periphery of the caulking groove 8 form a connection relationship, which makes the capillary action between the fibers of the first cotton body 101 and the second cotton body 102 better and the liquid transfer effect better. Since both the first fibers and the second fibers are distributed horizontally respectively, a horizontal and continuous capillary pathways can be formed between the first fibers and the second fibers, enabling the liquid to be rapidly transferred and spread from the first cotton body 101 to the second cotton body 102 horizontally. The liquid flow effect between the first cotton body 101 and the second cotton body 102 is well, and the oil guiding rate of the liquid absorbing cotton 1 is increased.

[0173] In some embodiments, the step of connecting the first fibers at the outer periphery of the first cotton body 101 with the second fibers at the inner periphery of the caulking groove 8 further includes:

[0174] connecting the first fibers at the outer periphery of the first cotton body 101 with the second fibers at the inner periphery of the caulking groove 8 of the second cotton body 102 by one or more processes selected from a group of a needle punching, a hydroentangling, a thermal bonding, and a chemical bonding.

[0175] Specifically, after the first cotton body 101 is embedded into the second cotton body 102, the first fibers and second fibers are entangled or bonded together using one or more processes selected from a group of the needle punching, the hydroentangling, the thermal bonding, and the chemical bonding. This interconnects the fibers between the first cotton body 101 and the second cotton body 102, the structural stability is enhanced and the first cotton body 101 is effectively prevented from detaching from the caulking groove 8.

[0176] Furthermore, when the liquid absorbing cotton 1 is a multi-layer structure (e.g., including a first cotton body 101 and multiple second cotton bodies 102 arranged layer-by-layer), the contact surfaces between adjacent first cotton body 101 and second cotton body 102 are entangled or bonded together using one or more processes selected from a group of the needle punching, the hydroentangling, the thermal bonding, and the chemical bonding. Similarly, the contact surfaces between adjacent second cotton bodies 102 are entangled or bonded together using one or more processes selected from a group of the needle punching, the hydroentangling, the thermal bonding, and the chemical bonding.

[0177] In some embodiments, the step of connecting the first fibers at the outer periphery of the first cotton body 101 with the second fibers at the inner periphery of the caulking groove 8 further includes:

[0178] connecting the first fibers at the outer periphery of the first cotton body 101 with the second fibers at the inner periphery of the caulking groove 8 of the second cotton body 102 by a needle punching and/or a hydroentangling, and an angle between the needle punching direction and a horizontal plane ranges from 0 to 90.

[0179] The angled needle punching process is adopted to make tangling more likely to occur between the first fibers and the second fibers, and the connection is more firm. The angle between the needle punching direction and the horizontal plane is preferably 30 or 60.

[0180] In some embodiments, the present application also provides the liquid absorption and diffusion effects of the liquid absorbing cotton 1 formed by the combination of the first cotton body 101 and the second cotton body 102 under the present application scheme, as well as the liquid absorption and diffusion effect of the liquid absorbing cotton with a single-layer cotton body structure in the existing technology.

[0181] The specific test operation is as follows: the liquid absorbing cotton 1 is placed flat on the table, a pipette is used to draw 50 L of aerosol matrix and then the aerosol matrix is slowly dripped along the inner wall of the through holes 7 of the first cotton body 101, and finally, the diffusion length of the aerosol matrix on the absorbent cotton 1 is measured.

[0182] In which, all the basic parameters are consistent;

[0183] In the present application scheme, the first cotton body 101 is uniformly a circular structure with an inner diameter of 3.5 mm and an outer diameter of 5.5 mm. The second cotton body is uniformly a rectangular structure with an inner diameter of 5.5 mm, a length of 10 mm, and a width of 8 mm. Moreover, both the first cotton body 101 and the second cotton body 102 are made of PET fibers (polyester fibers).

[0184] When the liquid absorbing cotton is only a single-layer cotton body structure, the liquid absorbing cotton is uniformly a rectangular structure with an inner diameter of 3.5 mm, a length of 10 mm, and a width of 8 mm. Moreover, the liquid absorbing cotton is made of PET fiber (polyester fiber).

[0185] The aerosol matrix used are e-liquid with PG (Propylene Glycol): VG (Vegetable Glycerin)=5:5.

[0186] Data of each liquid absorbing cotton 1 under the technical scheme of the present application:

TABLE-US-00001 TABLE 1 density diffusion thickness of first thickness density length of first cotton of second of second of liquid cotton body cotton cotton absorbing Data body (mm) (kg/m.sup.3) body (mm) body (kg/m.sup.3) cotton (mm) 1 0.5 120 0.5 250 3.64 2 3.0 50 3.0 150 2.32 3 5.0 200 5.0 300 1.87

[0187] The liquid absorbing cotton is a single-layer cotton body structure:

TABLE-US-00002 TABLE 2 thickness density diffusion length of cotton of cotton of liquid absorbing Data body (mm) body (kg/m.sup.3) cotton (mm) 1 0.5 120 2.14 2 3 50 1.16 3 5 200 1.06

[0188] By comparing Data 1, Data 2 and Data 3 in Table 1 with Data 1, Data 2 and Data 3 in Table 2, it can be known that:

[0189] Compared the liquid absorbing cotton 1 with a gradient density design formed by the combination of the first cotton body 101 and the second cotton body 102 in the embodiment of the present application with the liquid absorbing cotton with a single-layer cotton structure, it is no doubt that the liquid absorption and diffusion length of the liquid absorbing cotton 1 in the embodiment of the present application is longer, that is, the oil absorbing rate and diffusion transfer ability of the liquid absorbing cotton 1 are better, and the liquid absorbing capacity is stronger. In this way, the liquid absorbing cotton 1 provided in the embodiment of the present application applied in the atomizer 1000, can effectively reduce the risk of leakage.

[0190] The above description is merely the preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present application should all be included within the protection scope of the present application.