Method for manufacturing liquid absorbing cotton, liquid absorbing cotton, and atomizer

Abstract

The application relates to the atomization technical field and provides a preparation method of liquid-absorbing cotton, the liquid-absorbing cotton and an atomizer. The preparation method comprises the following steps: manufacturing a first cotton body; obtaining first fibers, laying the first fibers in a first direction, drawing the first fibers in a second direction, adding a fixing type and cutting in a horizontal direction to obtain the first cotton body with a through hole at a central position; manufacturing a second cotton body; obtaining second fibers, laying the second fibers in the first direction, drawing the second fibers in the second direction, adding the fixing type and cutting in the horizontal direction to obtain the second cotton body with a density greater than that of the first cotton body; arranging an embedding groove for accommodating the first cotton body on the second cotton body; and combining the first cotton body and the second cotton body together. The first cotton body and the second cotton body are combined to form the liquid-absorbing cotton with a double-layer structure, the density of the first cotton body is less than that of the second cotton body, and the liquid is more actively transferred to the second cotton body under the driving of the density difference and capillary action.

Description

Technical Field

[0001] This application relates to the field of atomization technology, and in particular provides a method for preparing absorbent cotton, absorbent cotton, and atomizer. Background Technology

[0002] Electronic atomizing devices mainly consist of an atomizer and a power supply. The atomizer typically includes a liquid reservoir, a coil, an air outlet, absorbent cotton, and a mouthpiece. The liquid reservoir stores the liquid aerosol matrix; the coil heats and atomizes the liquid aerosol matrix to form an edible aerosol. The absorbent cotton is located at the junction of the air outlet and the mouthpiece, and it absorbs the condensate produced during atomization.

[0003] Current absorbent pads are typically made from fibers in sheets, rolls, or tubes, and then punched and cut. The absorbent pads have a uniform overall density, resulting in a slow and gradual diffusion of liquid during absorption, leading to a low absorption rate and poor liquid transfer. Furthermore, some existing absorbent pads, due to different manufacturing processes, have longitudinally distributed fibers, resulting in poor horizontal liquid transfer, affecting the absorption rate, and making it prone to condensation leakage at the suction nozzle. Summary of the Invention

[0004] The purpose of this application is to provide a method for preparing absorbent cotton, absorbent cotton, and atomizer, in order to solve the problems of low absorbent absorption rate, poor diffusion and transfer effect of liquid on absorbent cotton, and easy leakage of condensate at the nozzle.

[0005] To achieve the above objectives, the technical solution adopted in this application is as follows:

[0006] The first cotton body is made; the first fiber is obtained, and in the horizontal direction, the first fiber is laid in a web along a first direction, stretched along a second direction, fixed and cut to obtain the first cotton body with a through hole in the center; the first direction and the second direction form an angle;

[0007] To produce a second cotton body; to obtain a second fiber, and in the horizontal direction, to lay the second fiber in the first direction, stretch it in the second direction, fix it, and cut it to obtain a second cotton body with a density greater than that of the first cotton body;

[0008] A groove for accommodating the first cotton body is made on the second cotton body;

[0009] The first cotton body and the second cotton body are combined together; the first cotton body is embedded in the groove of the second cotton body, such that the outer periphery of the first cotton body contacts the inner periphery of the second cotton body in the groove.

[0010] The method for preparing absorbent cotton in this application involves laying and stretching a first fiber and a second fiber, respectively. The first fiber on the first cotton body forms a random web on a horizontal plane, with the first fiber arranged relatively evenly in all directions within the horizontal plane and exhibiting a high degree of randomness. Similarly, the second fiber on the second cotton body forms a random web on a horizontal plane, with the second fiber arranged relatively evenly in all directions within the horizontal plane and exhibiting a high degree of randomness. Consequently, both the first and second cotton bodies can form continuous "microporous channels" in all directions on the horizontal plane, which facilitates the transfer and diffusion of the atomized liquid in all directions on the first and second cotton bodies, effectively improving the liquid diffusion rate of the cotton body.

[0011] Furthermore, the density of the first cotton body is less than that of the second cotton body, meaning that the fibers of the second cotton body are denser than those of the first cotton body. When the amount of liquid absorbed by the first cotton body reaches a certain level, under the action of differential wicking effect, the liquid will quickly transfer from the first cotton body to the second cotton body. In other words, the liquid can quickly transfer from the center of the absorbent cotton to the surrounding area, effectively improving the absorption rate of the absorbent cotton and thus improving its performance.

[0012] In one possible design, the thickness of the second cotton body is configured to be greater than or equal to the thickness of the first cotton body; wherein the thickness range of the first cotton body is configured to be 0.5mm-5mm; and the thickness range of the second cotton body is configured to be 0.5mm-5mm.

[0013] By adopting the above technical solution, the thickness of the second cotton body is greater than that of the first cotton body, which allows the liquid to be transferred better from the first cotton body to the second cotton body, thereby improving the diffusion effect of the liquid on the absorbent cotton.

[0014] In one possible design, the density range of the first cotton body is configured as 50-200 kg / m³. 3 ; and the density range of the second cotton body is configured as: 150-300 kg / m³ 3 .

[0015] In one possible design, the steps of laying the first fiber along a first direction, stretching it along a second direction, fixing it, and cutting it include:

[0016] The first direction is perpendicular to the second direction. During the cutting process, one of the first direction and the second direction is used as the length direction of the first cotton body, and the other of the first direction and the second direction is used as the width direction of the first cotton body.

[0017] By adopting the above technical solution, the degree of random distribution of the first fiber in the first cotton body is consistent with the degree of random distribution of the first fiber in the nonwoven fabric, and the liquid is more likely to diffuse on the first cotton body.

[0018] In one possible design, the breaking strength of the first cotton body in the first direction is defined as D1, and the breaking strength of the first cotton body in the second direction is defined as D2; wherein...

[0019] If the aspect ratio of the first cotton body to be cut is equal to 1, then D1 / D2 tends to 1.

[0020] In one possible design, the breaking strength of the first cotton body in the first direction is defined as D1, and the breaking strength of the first cotton body in the second direction is defined as D2; wherein...

[0021] If the aspect ratio of the first cotton body to be cut is greater than 1, and the first direction is the length direction of the first cotton body; then D1 / D2 is greater than 1; or,

[0022] If the aspect ratio of the first cotton body to be cut is greater than 1, and the second direction is the length direction of the second cotton body, then D1 / D2 is less than 1.

[0023] In one possible design, the steps of laying the second fiber along the first direction, stretching it along the second direction, fixing it, and cutting it include:

[0024] The first direction is perpendicular to the second direction; during the cutting process, one of the first direction and the second direction is taken as the length direction of the second cotton body, and the other of the first direction and the second direction is taken as the width direction of the second cotton body.

[0025] By adopting the above technical solution, the degree of random distribution of the second fibers in the second cotton body is consistent with the degree of random distribution of the second fibers in the nonwoven fabric, making it easier for liquid to diffuse on the second cotton body.

[0026] In one possible design, along the first direction, the distance between the outer edge of the second cotton body and the outer edge of the first cotton body is L1, and along the second direction, the distance between the outer edge of the second cotton body and the outer edge of the first cotton body is L2; ​​wherein,

[0027] If L1 equals L2, then the breaking strength of the second cotton body in the first direction is close to the breaking strength of the second cotton body in the second direction.

[0028] If L1 is greater than L2, then the breaking strength of the second cotton body in the first direction is greater than the breaking strength in the second direction.

[0029] If L1 is less than L2, then the breaking strength of the second cotton body in the first direction is less than the breaking strength in the second direction.

[0030] In one possible design, the first fiber is made of one or more mixtures of natural fibers, renewable fibers, and synthetic fibers; and / or,

[0031] The material used for the second fiber is one or more of the following: natural fiber, renewable fiber, and synthetic fiber.

[0032] By adopting the above technical solutions, the natural fibers are one or more mixtures of cotton, hemp, coconut shell, wood pulp, bamboo, wool, and silk. The renewable fibers are one or more mixtures of viscose, lyocell, and cupro. The synthetic fibers are one or more mixtures of polyethylene terephthalate (PET), polyethylene (PE), polypropylene (PP), polyamide (PA), and polylactic acid (PLA).

[0033] In one possible design, the step of creating a groove on the second cotton body for accommodating the first cotton body includes:

[0034] A groove is formed at the center of the second cotton body that matches the outline shape of the outer periphery of the first cotton body. The groove is used to make an interference fit with the first cotton body.

[0035] By adopting the above technical solution, the first cotton body is interference-fitted into the groove, which improves the contact effect between the first cotton body and the second cotton body and facilitates liquid transfer.

[0036] In one possible design, after embedding the first cotton body into the groove of the second cotton body, such that the outer periphery of the first cotton body contacts the inner periphery of the second cotton body in the groove; it further includes:

[0037] The first fiber on the outer periphery of the first cotton body is connected to the second fiber on the inner periphery of the second cotton body in the groove.

[0038] By adopting the above technical solution, the first fiber of the first cotton body and the second fiber of the second cotton body are further connected, so that the capillary action between the fibers of the first cotton body and the second cotton body is better and the liquid transfer effect is better.

[0039] In one possible design, the step of connecting the first fiber at the outer periphery of the first cotton body to the second fiber at the inner periphery of the second cotton body in the groove includes:

[0040] The first fiber at the outer periphery of the first cotton body and the second fiber at the outer periphery of the second cotton body are connected by one or more of the following processes: needle punching, hydroentangling, thermal bonding, and chemical bonding.

[0041] By adopting the above technical solution, the connection method between the first fiber and the second fiber is not limited and can be of various types.

[0042] In one possible design, the step of connecting the first fiber at the outer periphery of the first cotton body to the second fiber at the inner periphery of the second cotton body in the groove includes:

[0043] The first fiber at the outer periphery of the first cotton body and the second fiber at the outer periphery of the second cotton body are connected by needle punching and / or hydroentangling, and the angle between the needle punching direction and the horizontal plane is in the range of 0°-90°.

[0044] Secondly, this application provides an absorbent cotton, which is obtained by the aforementioned method for preparing absorbent cotton. The absorbent cotton includes a first cotton body with through holes and a second cotton body covering the first cotton body; the density of the first cotton body is configured to be less than the density of the second cotton body.

[0045] Thirdly, this application provides an atomizer, including a housing assembly and an atomizing core with absorbent cotton disposed within the housing assembly; the housing assembly includes a mouthpiece portion, and the housing assembly has an air outlet channel communicating between the atomizing core and the mouthpiece portion, and a liquid storage chamber for storing an aerosol matrix, the liquid storage chamber being used to supply liquid to the atomizing core; the absorbent cotton is horizontally disposed at the junction of the air outlet channel and the mouthpiece portion, and the through holes of the absorbent cotton are communicating with the air outlet channel. Attached Figure Description

[0046] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0047] Figure 1 A cross-sectional structural schematic diagram of an atomizer applied to an electronic atomization device according to an embodiment of this application;

[0048] Figure 2 for Figure 1 A magnified view of part A in the middle;

[0049] Figure 3 This is a schematic diagram of the structure of the absorbent cotton provided in one embodiment of this application;

[0050] Figure 4 This is a schematic diagram of the structure of the first and second cotton bodies of the absorbent cotton provided in an embodiment of this application;

[0051] Figure 5 This is a schematic diagram of the structure of the absorbent cotton provided in another embodiment of this application;

[0052] Figure 6 This is a schematic diagram of the structure of absorbent cotton provided in another embodiment of this application;

[0053] Figure 7 This is a schematic flowchart of the steps in a method for preparing absorbent cotton according to an embodiment of this application;

[0054] Figure 8 A cross-sectional view of a first cotton body on a horizontal plane provided in an embodiment of this application, wherein the aspect ratio of the first cotton body is equal to 1;

[0055] Figure 9 A cross-sectional view of a first cotton body on a horizontal plane provided in an embodiment of this application, wherein the aspect ratio of the first cotton body is greater than 1;

[0056] Figure 10 A cross-sectional view of absorbent cotton on a horizontal plane provided in an embodiment of this application, wherein L1 > L2;

[0057] Figure 11 A cross-sectional view of absorbent cotton on a horizontal plane provided in an embodiment of this application, wherein L1 < L2;

[0058] Figure 12 The image shows a cross-sectional view of the absorbent cotton on a horizontal plane according to an embodiment of this application, wherein L1 = L2.

[0059] The following are the labeling elements in the figure:

[0060] 1000, Atomizer; 2000, Electronic atomization device;

[0061] 1. Absorbent cotton; 101. First cotton body; 102. Second cotton body;

[0062] 2. Shell assembly; 3. Atomizer core; 4. Mouthpiece; 401. Mouthpiece channel; 5. Air outlet channel;

[0063] 6. Liquid storage tank; 7. Through hole; 8. Groove;

[0064] X, the first direction; Y, the second direction. Detailed Implementation

[0065] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this application, and should not be construed as limiting this application.

[0066] In the description of this application, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0067] 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 number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0068] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0069] In this application, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0070] Electronic atomizing devices mainly consist of an atomizer and a power supply. The atomizer generally includes a liquid reservoir, a coil, an air outlet, absorbent cotton, and a mouthpiece. The liquid reservoir stores the liquid aerosol matrix; the coil heats and atomizes the liquid aerosol matrix to form an edible aerosol. The absorbent cotton is located at the junction of the air outlet and the mouthpiece, absorbing condensate produced during atomization. Current absorbent cotton is often made of fiber-formed sheets, rolls, or tubes, which are then stamped and cut. The absorbent cotton has a uniform overall density, resulting in a slow, even diffusion of the liquid during absorption, leading to a low absorption rate and poor liquid transfer. Furthermore, some existing absorbent cottons, due to different manufacturing processes, have longitudinally distributed fibers, resulting in poor horizontal liquid transfer, affecting the absorption rate, and easily causing condensate leakage at the mouthpiece.

[0071] Based on this, in order to solve the above problems, this application designs a method for preparing absorbent cotton. This involves laying and stretching a first fiber and a second fiber respectively. The first fiber on the first cotton body forms a random web on a horizontal plane, with the first fiber arranged relatively evenly in all directions within the horizontal plane and exhibiting a high degree of randomness. Similarly, the second fiber on the second cotton body forms a random web on a horizontal plane, with the second fiber arranged relatively evenly in all directions within the horizontal plane and exhibiting a high degree of randomness. Consequently, both the first and second cotton bodies can form continuous "microporous channels" in all directions on the horizontal plane, facilitating the transfer and diffusion of the atomized liquid in all directions on the first and second cotton bodies, effectively improving the liquid diffusion rate of the cotton body, effectively improving the liquid absorption rate of the absorbent cotton, and effectively improving the performance of the absorbent cotton.

[0072] refer to Figure 1 , Figure 2 This application provides an atomizer 1000, including a housing assembly 2, an atomizing core 3 disposed within the housing assembly 2, and a liquid-absorbing cotton 1; the housing assembly 2 includes a mouthpiece 4, and an air outlet channel 5 connecting the atomizing core 3 and the mouthpiece 4 and a liquid storage chamber 6 for storing aerosol matrix are formed within the housing assembly 2, the liquid storage chamber 6 being used to supply liquid to the atomizing core 3; the liquid-absorbing cotton 1 is horizontally disposed at the junction of the air outlet channel 5 and the mouthpiece 4, and the through hole 7 of the liquid-absorbing cotton 1 is connected to the air outlet channel 5.

[0073] Specifically, Figure 1This is a cross-sectional structural diagram of the atomizer 1000 of this application applied to the electronic atomizing device 2000; the atomizing core 3 is used to heat and atomize the aerosol matrix stored in the liquid storage tank 6 to generate an aerosol that can be inhaled by the user. The aerosol enters the mouthpiece 4 through the air outlet channel 5; the mouthpiece 4 has a mouthpiece channel 401, and the absorbent cotton 1 is disposed between the air outlet channel 5 and the mouthpiece channel 401; it is understood that during the process of the aerosol flowing from the air outlet channel 5 into the mouthpiece channel 401, there is a phenomenon of aerosol condensation to form condensate. If the condensate is not absorbed in time, it may cause leakage at the mouthpiece 4, affecting the user experience; therefore, the absorbent cotton 1 is provided to absorb the condensate in time to reduce the risk of leakage.

[0074] refer to Figure 2 , Figure 3 , Figure 5 , Figure 6 In some embodiments, the absorbent cotton 1 of this application includes a first cotton body 101 having through holes 7 and a second cotton body 102 covering the first cotton body 101; the density of the first cotton body 101 is configured to be less than the density of the second cotton body 102.

[0075] Understandably, the terms "first" and "second" in "first cotton body 101" and "second cotton body 102" do not refer to quantity. For example, the absorbent cotton 1 can be a double-layer structure, comprising a first cotton body 101 and a second cotton body 102, with the first cotton body 101 located as the innermost layer. Alternatively, the absorbent cotton 1 can be a structure with two or more layers, comprising a first cotton body 101 and multiple second cotton bodies 102, with the first cotton body 101 located as the innermost layer, and multiple second cotton bodies 102 layered around the first cotton body 101 to form a ring structure. When the absorbent cotton 1 has a structure with two or more layers, the absorbent cotton 1 as a whole still satisfies the requirement that the density of each layer is gradient-distributed, that is, in the direction from the inside to the outside of the ring structure, the density of each ring of the absorbent cotton 1 shows an increasing trend. In some embodiments, the first cotton body 101 and the second cotton body 102 are combined to form a double-layered absorbent cotton 1, and the density of the first cotton body 101 is less than that of the second cotton body 102, forming a density difference between them. The fiber distribution of the second cotton body 102 is denser than that of the first cotton body 101. During the atomization process, the first cotton body 101 first contacts the condensate at the inner periphery of the through hole 7 and absorbs the condensate. After the first cotton body 101 absorbs a certain amount of liquid, the liquid absorbed by the first cotton body 101 will be actively and continuously transferred to the surrounding second cotton body 102 under the drive of density difference and fiber capillary action. This facilitates the rapid horizontal diffusion and transfer of liquid from the center of the absorbent cotton 1 to the surrounding areas, improving the liquid absorption rate and the liquid absorption effect.

[0076] Understandably, both the first cotton body 101 and the second cotton body 102 possess oil-locking and oil-storage capabilities. Oil-locking capability refers to the ability to lock in liquid and prevent leakage. Oil-storage capability refers to the ability to store and contain atomized liquid. For the same volume, the higher the density of the cotton body and the denser its fibers, the more contact the liquid has with the fibers, resulting in stronger adsorption (capillary) between the liquid and the fibers, making it easier for the liquid to be locked in the cotton body. Conversely, the lower the density of the cotton body and the sparser its fibers, the more voids there are in the microstructure of the same volume of cotton body, allowing more liquid to be stored. Therefore, compared to the second cotton body 102 (outer layer) of the same volume, the first cotton body 101 (inner layer) has a stronger oil-storage capability because its density is lower than that of the second cotton body 102. This means 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 ability, so after the liquid is transferred from the first cotton body 101 to the second cotton body 102, it is less likely to drip. That is, the absorbent cotton 1 of this application, by combining the first cotton body 101 and the second cotton body 102, can significantly improve the liquid absorption rate and oil absorption volume, and reduce the risk of leakage of the atomizer 1000.

[0077] refer to Figure 3 , Figure 4 , Figure 7 In some embodiments, this application also provides a method for preparing absorbent cotton 1, comprising the following steps:

[0078] S101, make a first cotton body 101; obtain a first fiber, lay the first fiber in the horizontal direction along the first direction X, stretch it in the second direction Y, fix it and cut it to obtain a first cotton body 101 with a through hole 7 at the center position; the first direction X and the second direction Y form an angle.

[0079] Understandably, before laying the first fiber into a web, the first fiber is pre-treated: the first fiber raw material is pre-opened by an opening machine, and the opened first fiber assembly is loosened by a carding machine. This improves the separation degree of the first fiber while minimizing the loss of the first fiber, so that the first fiber bundle is relatively well separated into individual fibers. This is a routine operation in existing fiber textile technology, and this application will not elaborate on it further.

[0080] Specifically, in the horizontal direction, the processed first fiber is laid into a web. The web-laying process is a process of forming a single-layer or multi-layer nonwoven web from the first fiber using mechanical methods. Understandably, the embodiments of this application use a web-laying machine to lay the fiber into a web, which is a conventional technology in the current textile field. Furthermore, the web-laying machine can set the arrangement direction of the first fiber after it has formed the web.

[0081] In some embodiments, the first fiber is laid out along the first direction X by a cross-laying machine, that is, most of the first fiber in the laid-out web will be arranged along the first direction X.

[0082] Understandably, stretching the web along the second direction Y after it has been laid out pulls some of the first fibers, which were initially arranged along the first direction X, into an arrangement along or tending towards the second direction Y, thus making the web more disordered and increasing its disorder. The uniformity of fiber quantity along all directions of the web is called disorder; the higher the disorder, the more uniform the fiber arrangement in all directions. Consequently, the first fibers are randomly distributed in all directions, thus forming continuous "microporous channels" (including the first direction X and the second direction Y) between the first fibers in the horizontal direction of the first cotton body 101. This facilitates the horizontal transfer and diffusion of liquid from the center outwards on the first cotton body 101. It also improves the structural strength of the product.

[0083] In some embodiments, this application includes a random drafting machine following the cross-laying machine. The random drafting machine uses multi-stage, low-multiplication drafting to pull some of the first fibers arranged along the first direction X into a second direction Y or towards the second direction Y, thus achieving a randomized web. The random drafting machine used in this embodiment is configured with five sets of roller assemblies, forming five drafting zones. Each set of roller assemblies includes three rollers. In each set of roller assemblies, the three rollers form a drafting roller drive system, with the tooth ratio of each roller drive component set to 38:37:36. The specific drafting quantity can be adjusted according to actual needs to ensure fiber straightness and parallelism.

[0084] The second direction Y forms an angle with the first direction X, and the angle between the second direction Y and the first direction X can be, but is not limited to, 90°, 60°, 45°, 30°, etc.

[0085] After stretching, the fiber web is fixed and shaped by one or more processes such as needle punching, hydroentangling, thermal bonding, and chemical bonding, thereby obtaining a nonwoven fabric with a strong structure, good dimensional stability, and elasticity.

[0086] In some embodiments, the first fiber is made of one or more mixtures of natural fibers, renewable fibers, and synthetic fibers; wherein, the natural fibers are one or more mixtures of cotton fibers, hemp fibers, coconut fiber, wood pulp fibers, bamboo fibers, wool fibers, and silk fibers. The renewable fibers are one or more mixtures of viscose fibers, lyocell fibers, and cupro fibers. The synthetic fibers are one or more mixtures of polyethylene terephthalate (PET), polyethylene (PE), polypropylene (PP), polyamide (PA), and polylactic acid (PLA).

[0087] In some embodiments, after obtaining a nonwoven fabric made of the first fiber, the nonwoven fabric is cut to obtain a first cotton body 101 of arbitrary shape and size.

[0088] Understandably, the shape of the first cotton body 101 can be, but is not limited to, a circle, a rectangle, an ellipse, or a rhombus.

[0089] In some embodiments, the first direction X is perpendicular to the second direction Y. During the cutting process, one of the first direction X and the second direction Y is used as the length direction of the first cotton body 101, and the other of the first direction X and the second direction Y is used as the width direction of the first cotton body 101.

[0090] Understandably, the first direction X is perpendicular to the second direction Y, resulting in better stretching and a higher degree of randomness in the fiber distribution. During the cutting process, the first cotton body 101 is cut based on the first direction X and the second direction Y, so that the length and width directions of the first cotton body 101 correspond to the first direction X and the second direction Y, respectively. This ensures that the degree of randomness in the first fiber distribution in the first cotton body 101 is consistent with the degree of randomness in the first fiber distribution in the nonwoven fabric, making it easier for liquid to diffuse on the first cotton body 101.

[0091] Understandably, the length direction of the first cotton body 1 does not specify the direction of the longest side of the first cotton body 1 in the horizontal cross-sectional figure; the length direction usually refers to the direction in which the first cotton body 1 extends the longest or main part of the first cotton body 1 in the horizontal cross-sectional figure. The dimension in this direction is a major component of the size of the first cotton body 1 in the horizontal cross-sectional figure and has a significant impact on the overall shape and size of the figure. The width direction is perpendicular to the length direction. For example, if the first cotton body 1 is a rectangle in the horizontal cross-sectional figure, then the length direction refers to the direction of the longer side; or, if the first cotton body 1 is a circle in the horizontal cross-sectional figure, then the length direction is the direction of the diameter inside the circle that is parallel to the first direction X or the second direction.

[0092] In some embodiments, the breaking strength of the first cotton body 101 in the first direction X is defined as D1, and the breaking strength of the first cotton body 101 in the second direction Y is defined as D2; wherein...

[0093] If the aspect ratio of the first cotton body 101 to be cut is equal to 1, then D1 / D2 tends to 1.

[0094] refer to Figure 8Understandably, if the aspect ratio of the first cotton body 101 to be obtained by cutting is equal to 1, that is, the shape of the first cotton body 101 to be cut is circular, square, rhomboid, etc.; a random drafting machine is configured. The random drafting machine used in this embodiment of the application is configured with five sets of roller assemblies, which in turn form five drafting zones. The drafting ratio of each drafting zone is set to 1.055. Through the drafting process, the degree of arrangement of the first fiber in the nonwoven fabric along the first direction X is made close to the degree of arrangement of the first fiber along the second direction Y. The nonwoven fabric prepared is cut along the first direction X or the second direction Y to obtain the first cotton body 101, so that the breaking strength value D1 of the first cotton body 101 in the first direction X and the breaking strength value D2 in the second direction Y are close. As a result, the fiber web disorder of the first cotton body 101 is high, and the first fiber is randomly distributed in all directions. Therefore, the first cotton body 101 forms continuous "micropore channels" in all directions (including the first direction X and the second direction Y) in the horizontal direction. It facilitates the horizontal transfer and diffusion of liquid from the center to the surrounding areas on the first cotton body 101.

[0095] In some other embodiments, the aspect ratio of the first cotton body 101 to be cut is greater than 1, and the first direction is the length direction of the first cotton body 101; then D1 / D2 is greater than 1.

[0096] refer to Figure 9 Specifically, when the outer contour shape of the first cotton body 101 to be cut is a rectangle, ellipse, or other shape with a clear difference in length and width, and the length direction of the first cotton body 101 is the first direction X; a random drafting machine is configured. The random drafting machine used in this embodiment is configured with five sets of roller assemblies, which in turn form five drafting zones. The drafting ratio of each drafting zone is set to a range of 1.307-1.620. Through the drafting process, the breaking strength D1 of the first fiber in the nonwoven fabric after the fiber web is drafted is made greater than that of the first fiber in the second direction Y. The breaking strength value D2; the nonwoven fabric prepared is cut along the first direction X to obtain the first cotton body 101, that is, 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 "micropore channels" along the first direction X in the horizontal direction; when the liquid is transferred in the horizontal direction on the first cotton body 101, the liquid transfer speed along the first direction X is faster, that is, it ensures that the liquid transfers faster along the length direction of the first cotton body 101 in the horizontal plane, further improving the liquid diffusion rate of the first cotton body 101.

[0097] In other embodiments, the aspect ratio of the first cotton body 101 to be cut is greater than 1, and the second direction is the length direction of the first cotton body 101; then D1 / D2 is less than 1.

[0098] Specifically, when the outer contour shape of the first cotton body 101 is a rectangle, an ellipse, or other shape with a clear difference in length and width, and the length direction of the first cotton body 101 is the second direction Y; a random drafting machine is configured. The random drafting machine used in this embodiment is configured with five sets of roller assemblies, which in turn form five drafting zones. The drafting ratio range of each drafting zone is set to 1.307-1.620. Through the stretching process, the breaking strength D1 of the first fiber in the nonwoven fabric in the first direction X is made smaller than the breaking strength D2 of the first fiber in the second direction Y. The prepared nonwoven fabric is cut along the second direction to obtain the first cotton body 101, that is, 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 "micropore channels" along the second direction Y in the horizontal direction. When the liquid is transferred in the horizontal direction on the first cotton body 101, the liquid transfer speed along the second direction Y is faster, that is, the liquid transfer speed along the length direction of the first cotton body 101 in the horizontal plane is faster, further improving the liquid conduction rate of the first cotton body 101.

[0099] Understandably, after the first fiber is made into the first cotton body 101, a through hole 7 is opened on the first cotton body 101, and the size of the through hole 7 is set accordingly according to the size of the atomizer 1000.

[0100] In some embodiments, the thickness of the first cotton body 101 is configured to be in the range of 0.5-5mm. Specifically, the thickness of the first cotton body 101 can be set to any one of 0.5mm, 1mm, 1.5mm, 2mm, 2.5mm, 3mm, 3.5mm, 4mm, 4.5mm, and 5mm.

[0101] In some other embodiments, the density range of the first cotton body 101 is configured as 50–200 kg / m³. 3 Specifically, the density of the first cotton boll 101 can be set to 50 kg / m³. 3 70kg / m 3 75kg / m 3 100kg / m 3 125kg / m 3 150kg / m 3 175kg / m 3 200kg / m 3 Any one of them.

[0102] refer to Figure 1 , Figure 2In this application, the horizontal direction is perpendicular to the axial direction of the atomizer 1000. The absorbent cotton 1 is arranged horizontally in the atomizer 1000. After the center of the absorbent cotton 1 absorbs the condensate, the liquid will diffuse and transfer horizontally along the absorbent cotton 1 to the surrounding areas. The first fibers are randomly distributed in the horizontal direction, that is, the first fibers in the first cotton body 101 can form multiple "micropore channels" arranged in different directions in the horizontal direction, which is conducive to the rapid transfer of liquid from the center of the first cotton body 1001 to the surrounding areas on the horizontal plane. Then, after the first cotton body 101 absorbs the aerosol matrix, the aerosol matrix can be rapidly transferred and diffused horizontally along the first cotton body 101.

[0103] S102, Make a second cotton body 102; Obtain a second fiber, lay the second fiber in the first direction X, stretch it in the second direction Y, fix it and cut it in the horizontal direction to obtain a second cotton body 102 with a density greater than that of the first cotton body.

[0104] Understandably, before laying the second fiber into a web, the second fiber is pre-treated: the second fiber raw material is pre-opened by an opening machine, and the opened second fiber assembly is loosened by a carding machine. This improves the separation degree of the second fiber while minimizing the loss of the second fiber, so that the second fiber bundle is more completely separated into individual fibers. This is a routine operation in existing fiber textile technology, and this application will not elaborate on it further.

[0105] Specifically, in the horizontal direction, the processed second fiber is web-laid. The web-laying process is a mechanical method to form a single-layer or multi-layer nonwoven web of the second fiber. Understandably, the embodiments of this application use a web-laying machine to lay the fibers, which is a conventional technology in the current textile field. Furthermore, the web-laying machine can set the arrangement direction of the first fiber after it forms a web.

[0106] In some embodiments, the second fiber is laid out along the first direction X by a cross-laying machine, that is, most of the second fiber in the laid-out web will be arranged along the first direction X.

[0107] Understandably, in order to improve the structural strength of the product, the fiber web after laying is stretched along the second direction Y, and some of the first fibers arranged along the first direction X are pulled to be arranged along or tend to be arranged along the second direction Y, so that the fiber web becomes disordered and the disorder of the fiber web is increased. Specifically, the uniformity of the fiber quantity arranged along each direction of the fiber web is called the disorder. The higher the disorder, the more uniform the fiber arrangement along each direction.

[0108] In some embodiments, this application includes a random drafting machine following the cross-laying machine. The random drafting machine uses multi-stage, low-multiplication drafting to pull some of the second fibers arranged along the first direction X into the second direction Y, or towards the second direction Y, thus achieving a randomized web. The random drafting machine used in this embodiment is configured with five sets of roller assemblies, forming five drafting zones. Each set of roller assemblies includes three rollers. In each set of roller assemblies, the three rollers form a drafting roller drive system, with the tooth ratio of each roller drive component set to 38:37:36. The specific drafting quantity can be adjusted according to actual needs to ensure fiber straightness and parallelism.

[0109] The second direction Y forms an angle with the first direction X, and the angle between the second direction Y and the first direction X can be, but is not limited to, 90°, 60°, 45°, or 30°.

[0110] After stretching, the fiber web is fixed and shaped by one or more processes such as needle punching, hydroentangling, thermal bonding, and chemical bonding, thereby obtaining a nonwoven fabric with a strong structure, good dimensional stability, and elasticity.

[0111] In some embodiments, the second fiber is made of one or more mixtures of natural fibers, renewable fibers, and synthetic fibers; wherein, the natural fibers are one or more mixtures of cotton fibers, hemp fibers, coconut fiber, wood pulp fibers, bamboo fibers, wool fibers, and silk fibers. The renewable fibers are one or more mixtures of viscose fibers, lyocell fibers, and cupro fibers. The synthetic fibers are one or more mixtures of polyethylene terephthalate (PET), polyethylene (PE), polypropylene (PP), polyamide (PA), and polylactic acid (PLA).

[0112] In some embodiments, after obtaining the nonwoven fabric, the nonwoven fabric is cut to obtain a second cotton body 102 of arbitrary shape and size.

[0113] The shape of the second cotton body 102 can be, but is not limited to, circular, rectangular, elliptical, or rhomboid.

[0114] In some embodiments, the thickness of the second cotton body 102 is configured to be in the range of 0.5-5mm. Specifically, the thickness of the second cotton body 102 can be set to any one of 0.5mm, 1mm, 1.5mm, 2mm, 2.5mm, 3mm, 3.5mm, 4mm, 4.5mm, and 5mm.

[0115] refer to Figure 3The first cotton body 101 is embedded in the second cotton body 102. Preferably, the thickness of the second cotton body 102 is greater than or equal to the thickness of the first cotton body 101. In other words, the second cotton body 102 completely covers the first cotton body 101, and the liquid absorbed by the first cotton body 101 can be transferred to the surrounding second cotton body 102, thereby improving the diffusion effect of the liquid on the absorbent cotton.

[0116] In some other embodiments, the density range of the second cotton body 102 is configured as 150–200 kg / m³. 3 Specifically, the density of the second cotton boll 102 can be set to 150 kg / m³. 3 160kg / m 3 170kg / m 3 180kg / m 3 190kg / m 3 200kg / m 3 Either of them. The density of the second cotton body 102 is greater than that of the first cotton body 101, forming a density difference between them. The liquid absorbed by the first cotton body 101 will be actively and continuously transferred to the surrounding second cotton body 102 under the drive of the density difference and fiber capillary action. This facilitates the rapid diffusion and transfer of liquid from the center of the absorbent cotton 1 to the surrounding areas, improving the liquid absorption rate and resulting in better liquid absorption.

[0117] refer to Figure 8 In some embodiments, the steps of laying the second fiber along the first direction X, stretching it along the second direction Y, fixing it, and cutting it include:

[0118] The first direction X is perpendicular to the second direction Y; during the cutting process, one of the first direction X and the second direction Y is used as the length direction of the second cotton body 102, and the other of the first direction X and the second direction Y is used as the width direction of the second cotton body 102.

[0119] Understandably, the first direction X is perpendicular to the second direction Y, resulting in better stretching and a higher degree of randomness in the fiber distribution. During the cutting process, the second cotton body 102 is cut based on the first direction X and the second direction Y, so that the length and width directions of the second cotton body 102 correspond to the first direction X and the second direction Y, respectively. The degree of randomness in the second fiber distribution in the second cotton body 102 is consistent with the degree of randomness in the second fiber distribution in the nonwoven fabric, making it easier for liquid to diffuse on the second cotton body 102.

[0120] In some embodiments, 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, and 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.

[0121] refer to Figure 12 In some embodiments, if L1 equals L2, the breaking strength of the second cotton body 102 in the first direction X approaches the breaking strength in the second direction Y.

[0122] Understandably, if L1 equals L2, meaning the outer edge of the second cotton body 102 is approximately equidistant from the outer edge of the first cotton body 101, then after the 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 drafting machine is configured; the random drafting machine used in this embodiment is configured with five sets of roller assemblies, thereby forming five drafting zones, each with a drafting ratio set to 1.055. Through a stretching process, the arrangement of the second fibers in the stretched nonwoven fabric along the first direction X is made similar to the arrangement of the first fibers along the second direction Y. The prepared nonwoven fabric is then cut along either the first direction X or the second direction Y to obtain a second cotton body 102. This means that the breaking strength of the second cotton body 102 in the first direction X and the breaking strength in the second direction Y are similar. Therefore, the second cotton body 102 forms continuous "microporous channels" in all directions (including the first direction X and the second direction Y) in the horizontal direction. This facilitates the horizontal transfer and diffusion of liquid from the outer edge of the first cotton body 101 to the surrounding areas on the second cotton body 102.

[0123] refer to Figure 10 In some other embodiments, if L1 is greater than L2, then the breaking strength of the second cotton body 102 in the first direction X is greater than the breaking strength in the second direction Y.

[0124] Understandably, refer to Figure 10 If L1 is greater than L2, then 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 first direction X within the second cotton body 102 is greater than the transfer area of ​​the liquid in the second direction Y. A random drafting machine is configured; the random drafting machine used in this embodiment is configured with five sets of roller assemblies, thereby forming five drafting zones. The drafting ratio range of each drafting zone is set to 1.307-1.620. Through the drafting process, the breaking strength D1 of the second fiber in the nonwoven fabric after the fiber web is drafted is made greater than the breaking strength D1 of the second fiber in the second direction Y. The tensile strength value D2; the prepared nonwoven fabric is cut along the first direction X to obtain the second cotton body 102, so that the tensile strength value of the second cotton body 102 in the first direction X is greater than the tensile strength value in the second direction Y, that is, more of the second fibers in the second cotton body 102 will be arranged along the first direction X. In the horizontal direction, the second cotton body 102 forms more continuous "micropore channels" arranged along the first direction X; when the liquid is transferred in the horizontal direction on the second cotton body 102, the transfer speed of the liquid along the first direction X is ensured to be faster, further improving the liquid conduction rate of the second cotton body 102.

[0125] refer to Figure 11 In some embodiments, if L1 is less than L2, the breaking strength of the second cotton body 102 in the first direction X is less than the breaking strength in the second direction Y.

[0126] Specifically, if L1 is 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 the transfer area of ​​the liquid in the second direction Y. Then, during the stretching process, a random stretching machine is configured. The random stretching machine used in this embodiment is configured with five sets of roller assemblies, which in turn form five stretching zones. The stretching ratio range of each stretching zone is set to 1.307-1.620. Through the stretching process, the breaking strength of the second fiber in the nonwoven fabric in the first direction X is made less than the breaking strength of the second fiber in the second direction Y. The obtained nonwoven fabric is cut along the second direction to obtain the second cotton body 102. The breaking strength of the second cotton body 102 in the first direction X is less than the breaking strength of the second cotton body 102 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. In the horizontal direction, the second cotton body 102 forms more continuous "micropore channels" arranged along the second direction Y. When the liquid is transferred in the horizontal direction on the second cotton body 102, the transfer speed of the liquid along the second direction Y is ensured to be faster, further improving the liquid conduction rate of the second cotton body 102.

[0127] refer to Figure 1 In this application, the horizontal direction is perpendicular to the axial direction of the atomizer 1000. The absorbent cotton 1 is arranged horizontally in the atomizer 1000. After the center of the absorbent cotton 1 absorbs the condensate, the liquid will diffuse and transfer horizontally along the absorbent cotton 1 to the surrounding areas. The liquid on the first cotton body 101 will be transferred to the second cotton body 102. Since the second fibers are randomly distributed in the horizontal direction, that is, multiple "micropore channels" arranged in different directions can be formed between the second fibers in the second cotton body 102 in the horizontal direction, which is conducive to the rapid transfer of liquid along the second cotton body 102 on the horizontal plane. Then, after the first cotton body 101 absorbs the aerosol matrix, the aerosol matrix on the first cotton body 101 can be quickly transferred to the second cotton body 102 and transferred horizontally in various directions on the second cotton body 102.

[0128] S103. A groove 8 for accommodating the first cotton body 101 is provided on the second cotton body 102.

[0129] Specifically, after the second cotton body 102 is formed, a groove 8 is provided at the center of the second cotton body 102, and the first cotton body 101 can be embedded in the groove 8; the groove 8 is specifically a hollow groove.

[0130] refer to Figures 4-6 Specifically, the outer periphery shape of the first cotton body 101 can be set to any shape such as circle, ellipse, or polygon, without any specific limitation; the shape of the groove 8 is configured to match the outer periphery shape of the first cotton body 101. The outer periphery shape of the second cotton body 102 can also be set to any shape such as circle, ellipse, or polygon, as long as the first cotton body 101 can be embedded in the second cotton body 102.

[0131] S104. The first cotton body 101 and the second cotton body 102 are combined together; the first cotton body 101 is embedded in the groove 8 of the second cotton body 102, so that the outer periphery of the first cotton body 101 contacts the inner periphery of the second cotton body 102 in the groove 8.

[0132] refer to Figure 3 , Figure 4 Specifically, the first cotton body 101 and the second cotton body 102 are both separate cotton body structures, that is, they are separate structures. After the first cotton body 101 and the second cotton body 102 are made separately, the first cotton body 101 is embedded into the groove 8 on the second cotton body 102 so that the two are combined to form the absorbent cotton 1. The structure is simple and convenient to assemble manually, which saves product manufacturing costs.

[0133] In some embodiments, the groove 8 is configured to have an interference fit with the first cotton body 101.

[0134] Understandably, the first cotton body 101 is interference-fitted into the groove 8, so that the first fiber of the first cotton body 101 and the second fiber of the second cotton body 102 are in close contact, 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 improving the liquid absorption and diffusion capacity of the absorbent cotton 1.

[0135] In some embodiments, after the first cotton body 101 is embedded in the groove 8 of the second cotton body 102, the first fibers at the outer periphery of the first cotton body 101 are further connected to the second fibers at the inner periphery of the second cotton body 102 in the groove 8.

[0136] Specifically, after the first cotton body 101 is embedded in the second cotton body 102, the first fibers of the first cotton body 101 and the second fibers of the second cotton body 102 are intertwined or bonded together by one or more of the following methods: needle punching, hydroentangling, thermal bonding, and chemical bonding. This ensures that the fibers between the first cotton body 101 and the second cotton body 102 are interconnected, improves structural stability, and effectively prevents the first cotton body 101 from detaching from the groove of the second cotton body 102.

[0137] Understandably, the first fiber at the outer periphery of the first cotton body 101 and the second fiber at the inner periphery of the second cotton body 102 form a connection, which improves the capillary action between the fibers of the first cotton body 101 and the second cotton body 102, resulting in better liquid transfer. Furthermore, since both the first and second fibers are distributed horizontally, they form a continuous horizontal "microporous channel," allowing liquid to be rapidly transferred and diffused from the first cotton body 101 to the second cotton body 102 in the horizontal direction. This good liquid flow between the first cotton body 101 and the second cotton body 102 enhances the oil conduction rate of the absorbent cotton 1.

[0138] Furthermore, when the absorbent cotton 1 has a structure of two or more layers, that is, the absorbent cotton 1 includes a first absorbent cotton 101 and multiple layers of second absorbent cotton 102; the contact surfaces between adjacent first absorbent cotton 101 and second absorbent cotton 102 are bonded together by one or more of the following processes: needle punching, hydroentangling, thermal bonding, and chemical bonding; and the contact surfaces between two adjacent second absorbent cotton 102 are also bonded together by one or more of the following processes: needle punching, hydroentangling, thermal bonding, and chemical bonding.

[0139] In some embodiments, the first fiber at the outer periphery 101 of the first cotton body and the second fiber at the outer periphery of the second cotton body 102 are connected by needle punching and / or hydroentangling, and the angle between the needle punching direction and the horizontal plane is in the range of 0°-90°.

[0140] The oblique needle punching process makes it easier for the first and second fibers to entangle, resulting in a stronger connection. The angle between the needle punching direction and the horizontal plane is preferably 30° or 60°.

[0141] In some embodiments, this application also provides, under the scheme of this application, testing the liquid absorption and diffusion effect of the absorbent cotton 1 formed by the combination of the first cotton body 101 and the second cotton body 102; and the liquid absorption and diffusion effect of the absorbent cotton with a single-layer cotton body structure in the prior art.

[0142] The specific test procedure is as follows: Place the absorbent cotton 1 flat on the table, use a pipette to draw 50 μL of aerosol matrix, and slowly drip it along the inner wall of the through hole 7 of the first cotton body 101. After 30 seconds, measure the diffusion length of the aerosol matrix on the absorbent cotton 1.

[0143] All the basic parameters are consistent.

[0144] In this application, 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. Both the first cotton body 101 and the second cotton body 102 are made of PET fiber (polyester fiber).

[0145] When the absorbent cotton is a single-layer cotton structure, it is uniformly a rectangular structure with an inner diameter of 3.5mm, a length of 10mm, and a width of 8mm; and the absorbent cotton is made of PET fiber (polyester fiber).

[0146] The aerosol matrix used is e-liquid with a PG (Propylene Glycol):VG (Vegetable Glycerin) ratio of 5:5.

[0147] Data for each absorbent cotton 1 under the technical solution of this application:

[0148]

[0149] Table 1

[0150] The absorbent cotton has a single-layer cotton structure:

[0151]

[0152] Table 2

[0153] By comparing data 1, data 2, and data 3 in Table 1 with data 1, data 2, and data 3 in Table 2, we can see that:

[0154] Compared with the single-layer cotton structure, the gradient density absorbent cotton 1 of this application, which is formed by the combination of the first cotton body 101 and the second cotton body 102, undoubtedly has a longer liquid absorption diffusion length, that is, the oil absorption rate and diffusion transfer ability of the absorbent cotton 1 are better, and the liquid absorption capacity is stronger. Therefore, when the absorbent cotton 1 provided by this application is applied in an atomizer 1000, it can effectively reduce the risk of leakage.

[0155] The above are merely preferred embodiments of this application and are not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A method for preparing absorbent cotton, characterized in that, Includes the following steps: The first cotton body is made; the first fiber is obtained, and in the horizontal direction, the first fiber is laid in a web along a first direction, stretched along a second direction, fixed and cut to obtain the first cotton body with a through hole in the center; the first direction and the second direction form an angle; To produce a second cotton body; to obtain a second fiber, and in the horizontal direction, to lay the second fiber in the first direction, stretch it in the second direction, fix it, and cut it to obtain a second cotton body with a density greater than that of the first cotton body; A groove for accommodating the first cotton body is made on the second cotton body; The first cotton body and the second cotton body are combined together; the first cotton body is embedded in the groove of the second cotton body, such that the outer periphery of the first cotton body contacts the inner periphery of the second cotton body in the groove.

2. The method for preparing absorbent cotton according to claim 1, characterized in that, The thickness of the second cotton body is configured to be greater than or equal to the thickness of the first cotton body; wherein, The thickness of the first cotton body is configured to range from 0.5mm to 5mm; The thickness range of the second cotton body is configured as 0.5mm-5mm.

3. The method for preparing absorbent cotton according to claim 1, characterized in that, The density range of the first cotton boll is configured as 50-200 kg / m³; and, The density range of the second cotton body is configured as 150-300 kg / m³.

4. The method for preparing absorbent cotton according to claim 1, characterized in that, The steps of laying the first fiber in a first direction, stretching it in a second direction, fixing it, and cutting it include: The first direction is perpendicular to the second direction. During the cutting process, one of the first direction and the second direction is used as the length direction of the first cotton body, and the other of the first direction and the second direction is used as the width direction of the first cotton body.

5. The method for preparing absorbent cotton according to claim 4, characterized in that, The breaking strength of the first cotton body in the first direction is defined as D1, and the breaking strength of the first cotton body in the second direction is defined as D2; wherein, If the aspect ratio of the first cotton body to be cut is equal to 1, then D1 / D2 tends to 1.

6. The method for preparing absorbent cotton according to claim 4, characterized in that, The breaking strength of the first cotton body in the first direction is defined as D1, and the breaking strength of the first cotton body in the second direction is defined as D2; wherein, If the aspect ratio of the first cotton body to be cut is greater than 1, and the first direction is the length direction of the first cotton body; then D1 / D2 is greater than 1; or, If the aspect ratio of the first cotton body to be cut is greater than 1, and the second direction is the length direction of the first cotton body, then D1 / D2 is less than 1.

7. The method for preparing absorbent cotton according to claim 1, characterized in that, The steps of laying the second fiber along the first direction, stretching it along the second direction, fixing it, and cutting it include: The first direction is perpendicular to the second direction; during the cutting process, one of the first direction and the second direction is used as the length direction of the second cotton body, and the other of the first direction and the second direction is used as the width direction of the second cotton body.

8. The method for preparing absorbent cotton according to claim 7, characterized in that, Along the first direction, the distance between the outer edge of the second cotton body and the outer edge of the first cotton body is L1, and along the second direction, the distance between the outer edge of the second cotton body and the outer edge of the first cotton body is L2; ​​wherein, If L1 equals L2, then the breaking strength of the second cotton body in the first direction is close to the breaking strength of the second cotton body in the second direction. If L1 is greater than L2, then the breaking strength of the second cotton body in the first direction is greater than the breaking strength in the second direction. If L1 is less than L2, then the breaking strength of the second cotton body in the first direction is less than the breaking strength in the second direction.

9. The method for preparing absorbent cotton according to claim 1, characterized in that, The first fiber is made of one or more of the following materials: natural fibers, renewable fibers, and synthetic fibers; and / or, The material used for the second fiber is one or more of the following: natural fiber, renewable fiber, and synthetic fiber.

10. The method for preparing absorbent cotton according to claim 1, characterized in that, The step of creating a groove on the second cotton body for accommodating the first cotton body includes: A groove is formed at the center of the second cotton body that matches the outline shape of the outer periphery of the first cotton body. The groove is used to make an interference fit with the first cotton body.

11. The method for preparing absorbent cotton according to any one of claims 1-10, characterized in that, After embedding the first cotton body into the groove of the second cotton body, such that the outer periphery of the first cotton body contacts the inner periphery of the second cotton body in the groove; it further includes: The first fiber on the outer periphery of the first cotton body is connected to the second fiber on the inner periphery of the second cotton body in the groove.

12. The method for preparing absorbent cotton according to claim 11, characterized in that, The step of connecting the first fiber at the outer periphery of the first cotton body to the second fiber at the inner periphery of the second cotton body in the groove includes: The first fiber at the outer periphery of the first cotton body and the second fiber at the outer periphery of the second cotton body are connected by one or more of the following processes: needle punching, hydroentangling, thermal bonding, and chemical bonding.

13. The method for preparing absorbent cotton according to claim 12, characterized in that, The step of connecting the first fiber at the outer periphery of the first cotton body to the second fiber at the inner periphery of the second cotton body in the groove includes: The first fiber at the outer periphery of the first cotton body and the second fiber at the outer periphery of the second cotton body are connected by needle punching and / or hydroentangling, and, The angle between the needle insertion direction and the horizontal plane ranges from 0° to 90°.

14. An absorbent cotton, obtained by the method for preparing absorbent cotton as described in any one of claims 1-13, characterized in that, The absorbent cotton includes a first cotton body with through holes and a second cotton body covering the first cotton body; the density of the first cotton body is less than the density of the second cotton body.

15. An atomizer, characterized in that, The device includes a housing assembly, an atomizing core disposed within the housing assembly, and absorbent cotton as described in claim 14; the housing assembly includes a nozzle portion, and the housing assembly has an air outlet channel communicating between the atomizing core and the nozzle portion, and a liquid storage chamber for storing an aerosol matrix, the liquid storage chamber being used to supply liquid to the atomizing core; the absorbent cotton is horizontally disposed at the junction of the air outlet channel and the nozzle portion, and the through holes of the absorbent cotton are connected to the air outlet channel.

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