Fiber mesh cloth, filter screen and humidifier

Abstract

The utility model provides fiber mesh cloth, a filter screen and a humidifier. A first surface layer and a second surface layer in the fiber screen cloth are fabrics, a plurality of first openings of the first surface layer correspond to a plurality of second openings of the second surface layer, and the edge parts of the first openings are connected with the edge parts of the second openings through connecting fibers. The number of first meshes in the whole circle of the edge part of the first opening and the number of second meshes in the whole circle of the edge part of the second opening are limited, and the number of times that the connecting fibers penetrate through the first surface layer and the second surface layer is determined. The connecting fibers penetrate through the first mesh holes and the second mesh holes in a one-in and one-out mode, the connecting fibers only penetrate through the single first mesh hole or the single second mesh hole once, the number of penetrating times of the connecting fibers is reduced, the structure is simple, and manufacturing is easy. The connecting fibers can realize reliable connection and interval keeping of the first surface layer and the second surface layer. When air blows over the wetted fiber mesh cloth, the air is in contact with moisture in the fiber mesh cloth, and the moisture in the fiber mesh cloth is gasified and flows along with the air so as to humidify the air.

Description

Technical Field

[0001] This application belongs to the field of humidifier technology, and particularly relates to a fiber mesh, filter and humidifier. Background Technology

[0002] Current evaporative humidifiers consist of a water tank, a water pump, a filter, and a fan. The water pump draws water from the tank to wet the filter, and the airflow generated by the fan passes through the filter, causing the water on the filter to evaporate and be blown out with the airflow, thus humidifying the air. The filter can be made of mesh fabric, which also serves to store water. Finding a simple and easy-to-manufacture fiber mesh fabric is a challenge that the industry needs to address. Utility Model Content

[0003] The purpose of this application is to provide a fiber mesh, a filter, and a humidifier. The fiber mesh has a simple structure and is easy to manufacture.

[0004] This application provides a fiber mesh fabric, including: a first surface layer, a second surface layer, and connecting fibers; the first surface layer is a fabric having a plurality of first openings, the edges of the first openings having 8 to 40 first mesh openings; the second surface layer is a fabric having a plurality of second openings, the edges of the second openings having 8 to 40 second mesh openings; the first surface layer and the second surface layer are spaced apart, and the plurality of first openings and the plurality of second openings correspond to each other; two connecting fibers extend from at least one first mesh opening to the second mesh opening, so that the edges of the first openings and the edges of the corresponding second openings are connected.

[0005] In one alternative implementation, the fabric has yarn having a plurality of first filaments, at least a portion of which have water-retaining grooves on their surfaces.

[0006] In one alternative implementation, the first fiber filament is at least one of synthetic fiber, natural fiber, and regenerated fiber;

[0007] In one alternative implementation, at least a portion of the first fiber filaments have a cross-shaped, multi-leaf-shaped, polygonal, W-shaped, or U-shaped cross-section;

[0008] In one alternative implementation, in the same yarn, the cross-sectional shape of a portion of the first fibers is different from that of another portion of the first fibers;

[0009] In one alternative implementation, the weight of the yarn over a length of 9000 meters is in the range of [30 grams, 300 grams], and the number of the first fiber filaments is in the range of [18 strands, 500 strands].

[0010] In one alternative implementation, the connecting fiber is a single second fiber filament.

[0011] In one alternative implementation, the diameter of the second fiber is in the range of [20 micrometers, 120 micrometers];

[0012] In one alternative implementation, the connecting fiber has an antibacterial layer;

[0013] In one alternative implementation, the surface of the second fiber filament has water-retaining grooves.

[0014] In one alternative implementation, the number of the first mesh is equal to the number of the second mesh;

[0015] In one alternative implementation, the surface of the first surface layer is provided with a first uneven hydrophobic layer;

[0016] In one alternative implementation, the surface of the second surface layer is provided with a second uneven hydrophobic layer;

[0017] In one alternative implementation, the fiber mesh is a double-layer woven structure with a warp density ranging from [16 threads / inch, 50 threads / inch] and a weft density ranging from [14 threads / inch, 45 threads / inch].

[0018] In one alternative implementation, the first opening is elliptical, rectangular, or hexagonal;

[0019] In one alternative implementation, the second opening is elliptical, rectangular, or hexagonal.

[0020] In one alternative implementation, the first opening or the second opening is hexagonal, the length of the long diagonal of the hexagon is in the range of [3 mm, 6 mm], and the length of the short diagonal of the hexagon is in the range of [2 mm, 5 mm].

[0021] In one alternative implementation, the thickness of the fiber mesh is in the range of [3 mm, 20 mm];

[0022] In one alternative implementation, the basis weight of the fiber mesh is in the range of [80 g / m², 1500 g / m²];

[0023] In one alternative implementation, the water retention per unit weight of the fiber mesh ranges from [1 g / g to 5 g / g].

[0024] In one alternative implementation, the first opening or the second opening is hexagonal in shape, the length of the long diagonal of the hexagonal is 5.0 mm, and the length of the short diagonal of the hexagonal is 3.0 mm.

[0025] In one alternative implementation, the first opening or the second opening is hexagonal in shape, with the long diagonal of the hexagonal being 4.0 mm long and the short diagonal being 2.0 mm long.

[0026] The beneficial effects of the fiber mesh fabric provided in this application embodiment are as follows: the first and second surface layers are fabrics, the multiple first openings of the first surface layer correspond to the multiple second openings of the second surface layer, and the edges of the first and second openings are connected by connecting fibers, which can reduce ventilation resistance. The number of first mesh holes around the edge of the first opening and the number of second mesh holes around the edge of the second opening are limited, determining the number of times the connecting fibers pass through the first and second surface layers. The connecting fibers pass through the first and second mesh holes in a one-in-one-out (straight-in-straight-out) manner, passing through each mesh hole only once, reducing the number of times the connecting fibers pass through the first and second mesh holes. The structure is simple and easy to manufacture. The connecting fibers can reliably connect the first and second surface layers and maintain their spacing. The fiber mesh fabric has fewer processing steps and higher processing efficiency. When air blows across the wet fiber mesh fabric, the air comes into contact with the moisture in the fiber mesh fabric, the moisture in the fiber mesh fabric vaporizes and flows with the air, thus humidifying the air. Two connecting fibers extend from the first mesh to the second mesh, resulting in less air resistance in the area between the first and second surface layers, thus reducing ventilation resistance and increasing ventilation efficiency. The deformation of the first and second openings, i.e., the size of the overlap between the first and second openings, can be easily controlled by adjusting the stiffness of the connecting fibers.

[0027] This application provides a filter screen, including one or more of the above-mentioned fiber mesh fabrics stacked together.

[0028] This application provides a humidifier that includes the filter described above.

[0029] The beneficial effects of the filter and humidifier provided in this application embodiment are that the filter having the above-mentioned fiber mesh and the humidifier having the above-mentioned filter both have the effects of the above-mentioned fiber mesh. Attached Figure Description

[0030] 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.

[0031] Figure 1 This is a schematic diagram of the structure of the fiber mesh provided in the embodiments of this application. Only some of the connecting fibers are shown in the figure.

[0032] Figure 2 for Figure 1 A partial structural diagram of the fiber mesh fabric, showing only some of the connecting fibers;

[0033] Figure 3 This is a schematic diagram showing the connection between the first surface layer, the second surface layer, and the connecting fibers in the fiber mesh provided in the embodiments of this application.

[0034] Figure 4 (a) and (b) are cross-sectional views of the yarns in the fiber mesh provided in different embodiments of this application, respectively.

[0035] Figure 5 (a) to (d) are cross-sectional views of the connecting fibers in the fiber mesh provided in different embodiments of this application, respectively;

[0036] Figure 6 (a) and (b) in the figure are schematic diagrams of the structure of the first surface layer in the fiber mesh provided in different embodiments of this application;

[0037] Figure 7 This is a schematic diagram of the structure of the filter provided in an embodiment of this application.

[0038] The following are the labeling elements in the figure:

[0039] 100-fiber mesh fabric;

[0040] 10 - First surface layer; 11 - First opening; 12 - Edge of the first opening; 13 - First mesh;

[0041] 20 - Second surface layer; 21 - Second opening; 22 - Edge of the second opening; 23 - Second mesh;

[0042] 30 - Weaving thread; 31, 31a, 31b - First fiber filament; 32 - Water storage groove; 40 - Connecting fiber;

[0043] 200-Filter. Detailed Implementation

[0044] To make the technical problems, technical solutions, and beneficial effects to be solved by this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and are not intended to limit the scope of this application.

[0045] In the description of the embodiments 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. They are only for the convenience of describing the embodiments of 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. Therefore, they should not be construed as limitations on the embodiments of this application.

[0046] 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.

[0047] In the embodiments of this application, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," "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. For those skilled in the art, the specific meaning of the above terms in the embodiments of this application can be understood according to the specific circumstances.

[0048] A type of mesh fabric, based on related technology, can be used as a filter in an evaporative humidifier, serving a water storage function. The mesh fabric includes a first surface layer, a second surface layer, and connecting fibers. The first and second surface layers are spaced apart, with the first surface layer having multiple first openings and the second surface layer having multiple second openings. The first and second openings are arranged correspondingly. The edges of the first openings have multiple first mesh openings, and the edges of the second openings have multiple second mesh openings. The first and second surface layers are connected by multiple connecting fibers, which pass through the multiple first and second mesh openings. Water storage is achieved through capillary absorption via the gaps between the connecting fibers, rather than through the first and second surface layers themselves.

[0049] To enhance the water storage capacity of the related mesh fabric, at least four connecting fibers are required between the first and second mesh openings, and the diameter and spacing of these connecting fibers must be controlled. The connecting fibers need to be arranged in a curved pattern between the first and second surface layers to increase their distribution density.

[0050] When the mesh fabric is wet, the smaller the opening in the surface layer, the easier it is for a water film to form at the opening. Once a water film forms, the ventilation resistance (wind resistance) of the mesh fabric increases, and the ventilation and humidification rates decrease. To prevent water film formation in the mesh fabric, the maximum diagonal length of the surface layer opening is set to a larger dimension.

[0051] However, in the related technology's mesh fabric, the bent connecting fibers are arranged at a high density. These fibers bend and fill the vertical holes between the first and second openings, reducing the porosity of the three-dimensional structure within those holes. When the mesh fabric is wet, it easily forms numerous tiny water films, increasing its ventilation resistance. Even if the maximum diagonal length of the surface opening is greater than 3 mm, it cannot effectively overcome the problem of numerous water films forming in the mesh fabric.

[0052] The larger the maximum diagonal length of the opening in the surface layer, the more difficult it is to control the stiffness of the mesh. When the maximum diagonal length of the opening in the surface layer is greater than 3 mm, the connecting fibers are arranged in a bent manner, resulting in lower stiffness. After the mesh is disassembled for cleaning and subjected to tension, the bending and tilting of the connecting fibers will increase. The size and shape of the opening in the surface layer mainly depend on the stiffness of the connecting fibers. After the connecting fibers bend, the first opening of the first surface layer and the second opening of the second surface layer will misalign, resulting in poor mesh recovery.

[0053] Please see Figures 1 to 3 This application provides a fiber mesh fabric 100, including a first surface layer 10, a second surface layer 20, and connecting fibers 40. The first surface layer 10 is a fabric with a plurality of first openings 11, and the edge portion 12 of the first opening 11 has 8 to 40 first mesh openings 13. The second surface layer 20 is a fabric with a plurality of second openings 21. The edge portion 22 of the second opening 21 has 8 to 40 second mesh openings 23. The first surface layer 10 and the second surface layer 20 are spaced apart, and the plurality of first openings 11 and the plurality of second openings 21 correspond to each other. Two connecting fibers 40 extend from at least one first mesh opening 13 to the second mesh opening 23, so that the edge portion 12 of the first opening 11 and the edge portion 22 of the corresponding second opening 21 are connected.

[0054] The edge portion 12 of the first opening 11 refers to the edge region surrounding the first opening 11. Among the plurality of first openings 11 in the first surface layer 10, adjacent first openings 11 may share a common edge. The edge portion 22 of the second opening 21 is similar.

[0055] The first surface layer 10 has multiple first openings 11, and adjacent first openings 11 form a common edge. The first mesh 13 of the common edge can be counted as the number of first mesh 13 of the edge portion 12 of the first opening 11 in the two adjacent first openings 11. For example, the number of first mesh 13 around the edge portion 12 of the first opening 11 is 16 or 24. The second mesh 23 of the second opening 21 of the second surface layer 20 is similar.

[0056] Visually, two connecting fibers 40 extend from a single first mesh 13 to a second mesh 23, but in reality, the same connecting fiber 40 passes through a single first mesh 13, one in and one out.

[0057] See Figure 1 Multiple first openings 11 and multiple second openings 21 correspond to each other, and the first openings 11 and the second openings 21 can be connected in a one-to-one correspondence.

[0058] The fiber mesh 100 provided in this embodiment has a first surface layer 10 and a second surface layer 20 made of fabric. Multiple first openings 11 in the first surface layer 10 correspond to multiple second openings 21 in the second surface layer 20. The edges 12 of the first openings 11 and the edges 22 of the second openings 21 are connected by connecting fibers 40, which reduces ventilation resistance. The number of first mesh openings 13 around the edge 12 of a single first opening 11 and the number of second mesh openings 23 around the edge 22 of a single second opening 21 are limited, thus determining the number of times the connecting fibers 40 pass through the first surface layer 10 and the second surface layer 20. The connecting fibers 40 pass through the first mesh openings 13 and the second mesh openings 23 in a one-in-one-out (straight-in-straight-out) manner. The connecting fibers 40 pass through each first mesh opening 13 or second mesh opening 23 only once, reducing the number of times the connecting fibers 40 pass through the first mesh openings 13 and the second mesh openings 23. This results in a simple structure that is easy to manufacture. The connecting fibers 40 ensure a reliable connection between the first surface layer 10 and the second surface layer 20 and maintain their spacing. The fiber mesh 100 involves fewer processes and steps, resulting in higher processing efficiency. When air blows across the wet fiber mesh 100, the air comes into contact with the moisture in the fiber mesh 100, causing the moisture to vaporize and flow with the air, thus humidifying the air. Two connecting fibers 40 extend from the first mesh 13 to the second mesh 23, reducing air resistance in the area between the first surface layer 10 and the second surface layer 20, thereby decreasing ventilation resistance and increasing ventilation efficiency. The deformation of the first opening 11 and the second opening 21, i.e., the size of the overlap between the first opening 11 and the second opening 21, can be easily controlled by adjusting the stiffness of the connecting fibers 40.

[0059] In some embodiments, water is stored using the first surface layer 10 and the second surface layer 20 instead of the connecting fiber 40. The hydrophilicity of the first surface layer 10 or the second surface layer 20 is greater than that of the connecting fiber 40, thereby enhancing the water storage capacity of the first surface layer 10 and the second surface layer 20. Hydrophilicity refers to water retention or water absorption.

[0060] In some embodiments, see Figure 1 , Figure 4 The fabrics of the first layer 10 and the second layer 20 have yarns 30, each yarn having multiple first fiber filaments 31, which can be interwoven to form the yarns 30. At least a portion of the surface of the first fiber filaments 31 has water-retaining grooves 32.

[0061] At least a portion of the surface of the first fiber filament 31 has water-retaining grooves 32, such as Figure 4 As shown in (a), some of the first fiber filaments 31a may have water storage grooves 32 while other parts of the first fiber filaments 31b may not have water storage grooves 32, or, as shown in (a), they may have water storage grooves 32. Figure 4 As shown in (b), all the first fiber filaments 31a have water storage grooves 32.

[0062] The water-retaining grooves 32 on the surface of the first fiber filament 31 can store a large amount of water 1. This is beneficial for improving the water storage capacity of the first surface layer 10 and the second surface layer 20. Water is stored in the first surface layer 10 and the second surface layer 20 instead of the connecting fiber 40.

[0063] In some embodiments, please refer to Figure 4 The first fiber filament 31 is at least one of synthetic fiber, natural fiber, and regenerated fiber. These fiber filaments can be synthesized to obtain yarn 30, which can be woven to form the first surface layer 10 and the second surface layer 20. Synthetic fibers can be polyester, nylon, acrylic, polypropylene, vinylon, chlorofiber, etc. Natural fibers can be cotton yarn, wool, silk, and hemp, etc. Regenerated fibers can be lyocell fiber, chitosan fiber, etc.

[0064] In some embodiments, please refer to Figure 5 In (a) to (d), at least a portion of the first fiber filament 31 may have an irregular cross-section to form a water storage groove 32, such as a cross shape, multi-lobed shape, polygonal shape, W-shaped shape, or U-shaped shape. A multi-lobed shape may be trilobed, resembling three leaves arranged in a Y-shape. Each side of a polygon may be concave to form a water storage groove 32. A polygon may be triangular, quadrilateral, pentagonal, etc. The first fiber filament 31 with the aforementioned cross-section can form a water storage groove 32, allowing water to be retained within the water storage groove 32, combined with... Figure 1 This enhances the water storage capacity of the first surface layer 10 and the second surface layer 20.

[0065] In some embodiments, see Figure 1The yarn 30 has a hydrophilic layer (not shown in the figure). The hydrophilic layer of the yarn 30 gives the fiber mesh 100 good hydrophilicity.

[0066] In some embodiments, the hydrophilic layer of the yarn 30 may be disposed on the outer surface of the first fiber filament 31. During the synthesis of the yarn 30 from the first fiber filament 31, a high molecular polymer with hydrophilic groups, such as polybutyl acrylate or methyl methacrylate, is blended in and grafted onto the molecular chain of the first fiber filament 31 to improve the hydrophilicity of the yarn 30, which is beneficial for maintaining the water storage capacity of the first surface layer 10 and the second surface layer 20 for a long time.

[0067] Compared to the method of using a post-coating hydrophilic oil agent to achieve moisture absorption in mesh fabrics, which can lead to the desorption of the hydrophilic oil agent after prolonged use and repeated washing, resulting in a decrease in hydrophilicity, this embodiment forms a hydrophilic layer on the surface of the first fiber filament 31 during the fabrication of the yarn 30. Under conditions such as external force (e.g., rubbing, rinsing), cleaning with added substances (e.g., citric acid, detergent), and high temperature (e.g., water bath above 60°C), the fiber mesh fabric 100 can maintain a long-term and stable hydrophilic effect, meeting the needs of long-term use.

[0068] In some embodiments, see Figure 1 The yarn 30 has an antibacterial layer (not shown in the figure), which makes the fiber mesh 100 antibacterial and mildew-proof.

[0069] In some embodiments, the antibacterial layer of the yarn 30 may be disposed on the outer surface of the first fiber filament 31. During the synthesis of the yarn 30 from the first fiber filament 31, an antibacterial agent is added by blending, which may be of various types, including inorganic, organic, and natural extracts, such as copper, zinc, graphene, phenols, and plant-derived organic acids. These antibacterial agents may be embedded in the yarn 30.

[0070] Compared to the method of using post-coating antibacterial oils (such as quaternary ammonium salts) to achieve antibacterial properties in mesh fabrics, the antibacterial oils will desorb after prolonged use and repeated washing, thus reducing the antibacterial effect. In this embodiment, the antibacterial layer is formed on the surface of the first fiber filament 31 during the fabrication of the yarn 30, which can reduce the post-coating process. Under conditions such as external force (such as rubbing and rinsing), cleaning with added substances (such as citric acid, detergent, etc.), and high temperature (such as water bath above 60°C), the fiber mesh fabric 100 can also maintain a long-term and stable antibacterial and anti-mildew effect, meeting the needs of long-term use.

[0071] For example, antibacterial fiber filaments are embedded into first fiber filament 31, and the first fiber filament 31 and antibacterial fiber filaments are interwoven to form yarn 30, with the antibacterial fiber filament portion serving as an antibacterial layer. There is no need to apply an antibacterial oil to the fiber mesh 100 afterward.

[0072] In some embodiments, please refer to Figure 2 , Figure 3Multiple first mesh openings 13 can be arranged sequentially along the edge 12 of the first opening 11, and multiple second mesh openings 23 can be arranged sequentially along the edge 22 of the second opening 21. During the fabrication of the fiber mesh 100, the first surface layer 10, the second surface layer 20, and the connecting fibers 40 are fabricated simultaneously, and conventional mesh fabrication processes can be used.

[0073] For example, see Figure 2 The first opening 11 and the second opening 21 are connected, and the edge portion 12 of the first opening 11 and the edge portion 22 of the second opening 21 correspond to each other. The connecting fiber 40 can sequentially and alternately pass through different first mesh 13 and second mesh 23 in the direction of edge extension, that is, the connecting fiber 40 sequentially passes through one first mesh 13, one second mesh 23, then another first mesh 13, then another second mesh 23, and so on, to realize the connection between the first surface layer 10 and the second surface layer 20.

[0074] For example, when the connecting fiber 40 passes through part of the first mesh 13 or part of the second mesh 23, the connecting fiber 40 may skip one or two first mesh 13 or second mesh 23 and pass through the first mesh 13 or second mesh 23 at the next position, and then return to pass through the first mesh 13 or second mesh 23 that was previously skipped. The connecting fiber 40 does not pass through the first mesh 13 and second mesh 23 in complete sequence, thereby realizing the connection between the first surface layer 10 and the second surface layer 20.

[0075] In some embodiments, please refer to Figure 2 The connecting fiber 40 is a single second fiber filament, rather than a composite of multiple fiber filaments. The diameter of the second fiber filament ranges from 20 micrometers to 120 micrometers, which is relatively large. This makes the second fiber filament located between the first layer 10 and the second layer 20 less prone to significant bending, instead maintaining its stiffness in the thickness direction of the fiber mesh 100, allowing for slight bending.

[0076] The large diameter and stiffness of the connecting fibers 40 result in better overall mechanical properties of the fiber mesh 100. The fiber mesh 100 exhibits good recovery after being stretched and repeatedly washed, reducing the possibility of misalignment between the first surface layer 10 and the second surface layer 20. The connecting fibers 40 are less prone to bending and clogging towards the vertical holes between the first opening 11 and the second opening 21, reducing ventilation resistance and minimizing the formation of a water film on the fiber mesh 100 after wetting, thus achieving better ventilation and humidification. If the diameter of the connecting fibers 40 is greater than 100 micrometers, the water-retaining or water-locking ability of the fiber mesh 100 will decrease.

[0077] For example, the diameter of the second fiber is in the range of [50 micrometers, 80 micrometers]. When the cross-section of the second fiber is circular, the outer circumference of the second fiber ranges from 157 micrometers to 251 micrometers.

[0078] In some embodiments, the connecting fiber 40 is a synthetic fiber, a natural fiber, or a regenerated fiber. Synthetic fibers may be polyester, nylon, acrylic, polypropylene, vinylon, chlorofiber, etc. Natural fibers may be cotton yarn, wool, silk, and hemp, etc. Regenerated fibers may be lyocell fiber, chitosan fiber, etc.

[0079] In some embodiments, please refer to Figure 1 , Figure 2 The connecting fiber 40 has an antibacterial layer (not shown). The antibacterial layer of the connecting fiber 40 makes the fiber mesh 100 antibacterial and mildew-proof. Antibacterial agents can be added to the connecting fiber 40, which can be inorganic, organic, or natural extracts, such as copper, zinc, graphene, phenols, and plant-derived organic acids. These antibacterial agents can adhere to the surface of the connecting fiber 40.

[0080] For example, the second fiber can be a polyester fiber with a diameter of 56 micrometers, embedded with a graphene antibacterial agent. This gives the second fiber a certain degree of stiffness, preventing it from bending significantly. The second fiber also has antibacterial and antifungal properties.

[0081] In some embodiments, the surface of the second fiber filament has water storage grooves (not shown), which can store more water and improve the water storage capacity of the fiber mesh 100.

[0082] In some embodiments, please refer to Figure 4 In (a) of the same yarn 30, the cross-sectional shapes of a portion of the first fiber filaments 31a and another portion of the first fiber filaments 31b are different. The cross-section of a portion of the first fiber filaments 31a can be irregular to form water storage grooves 32, such as cross-shaped, multi-leaf-shaped, polygonal, W-shaped, or U-shaped. The cross-section of the other portion of the first fiber filaments 31b can be circular, etc. Multiple first fiber filaments 31 are interwoven to form the yarn 30, so that the yarn 30 or the surface layer has different characteristics of the first fiber filaments 31.

[0083] For example, a first fiber filament 31b with a circular cross-section is used as a reinforcing fiber filament, and multiple first fiber filaments 31a with irregular cross-sections are used as water-retaining fiber filaments. The multiple water-retaining fiber filaments are interwoven around the outer periphery of the reinforcing fiber filament. This gives the yarn 30 or the surface layer a certain strength and water-retaining capacity.

[0084] In other embodiments, please refer to Figure 4 In (b) of the same yarn 30, all the first fibers 31 have the same cross-sectional shape. The cross-sections of all the first fibers 31 can be irregular to form water-retaining grooves 32 to improve the water-retaining capacity of the yarn 30 or the surface layer.

[0085] For example, the cross-section of the first fiber filament 31 can be cross-shaped, forming a high water storage capacity through a number of water storage grooves 32.

[0086] In some embodiments, please refer to Figure 1 , Figure 4 The first layer 10 and the second layer 20 are made of yarn 30, which has a weight range of [30 grams, 300 grams] for a length of 9000 meters. Yarn 30 has multiple first filaments 31. The number of first filaments 31 in the same yarn 30 ranges from [18 to 500]. By limiting the fineness of the yarn 30 and the number of first filaments 31 in the yarn 30, the first layer 10 and the second layer 20 woven from the yarn 30 have good water absorption and mechanical properties, and a stable structure.

[0087] Denier (D) is a measure of fiber fineness, referring to the weight in grams of 9000 meters of yarn. A higher D number indicates a thicker yarn. Filament (F) is the number of fibers in each strand of yarn.

[0088] For example, the yarn 30 used in the first layer 10 and the second layer 20 can be 150D / 144F polyester. 150D means that 9000 meters of yarn 30 weighs 150 grams. The yarn 30 is composed of 144 fine fibers. Conventional blending processes can be used to manufacture the yarn 30, employing monofilament polyester fibers with cross-shaped or triangular cross-sections and embedding graphene antibacterial agents.

[0089] For example, the yarn 30 used in the first layer 10 and the second layer 20 can be 150D / 96F polyester. 150D means that 9000 meters of yarn 30 weighs 150 grams. The yarn 30 is composed of 96 fine fibers. Conventional blending processes can be used to manufacture the yarn 30, employing monofilament polyester fibers with cross-shaped or triangular cross-sections and embedding graphene antibacterial agents.

[0090] For example, the yarn 30 used in the first layer 10 and the second layer 20 can be 300D / 96F polypropylene. 300D means that 9000 meters of yarn 30 weighs 300 grams. The yarn 30 is composed of 96 fine fibers. Conventional blending processes can be used to manufacture the yarn 30, employing monofilament polypropylene fibers with triangular cross-sections and embedding graphene antibacterial agents.

[0091] In some embodiments, the number of first mesh openings 13 and the number of second mesh openings 23 can be equal. The connecting fiber 40 passes through the first mesh opening 13 and the second mesh opening 23 in a one-in-one-out manner, which can achieve a reliable connection between the first surface layer 10 and the second surface layer 20.

[0092] In other embodiments, the number of first mesh openings 13 and the number of second mesh openings 23 may not be equal. For example, if the number of first mesh openings 13 is less than the number of second mesh openings 23, the connecting fiber 40 may pass through most of the second mesh openings 23 and all of the first mesh openings 13 without passing through some of the second mesh openings 23, thus achieving a reliable connection between the first surface layer 10 and the second surface layer 20.

[0093] In some embodiments, please refer to Figure 1 The surface of the first surface layer 10 is provided with a first uneven hydrophobic layer (not shown); the surface of the second surface layer 20 is provided with a second uneven hydrophobic layer (not shown). The uneven hydrophobic layer can improve the water absorption and storage capacity of the surface layer. The uneven hydrophobic layer can be formed by adhering hydrophobic particles to the surfaces of the first surface layer 10 and the second surface layer 20 to form a micro-uneven structure, which has a water storage function. The hydrophobic particles can be ceramic particles, silica particles, etc.

[0094] In some embodiments, please refer to Figure 1 The fiber mesh 100 has a double-layer woven structure, with the first surface layer 10 and the second surface layer 20 connected by connecting fibers 40. The connecting fibers 40 serve as warp fibers, while the fibers in the first surface layer 10 and the second surface layer 20 serve as weft fibers. The warp density ranges from 16 threads / inch to 50 threads / inch, and the weft density ranges from 14 threads / inch to 45 threads / inch. One inch (inch) equals 0.0254 meters (m). By defining the fiber distribution in both the warp and weft directions of the fiber mesh 100, the fiber mesh 100 exhibits good mechanical properties and structural stability. Furthermore, the first fibers 31 in the first surface layer 10 and the second surface layer 20 have water-retaining grooves 32, giving the fiber mesh 100 good water-retaining capacity.

[0095] For example, the fiber mesh 100 has a double-layer woven structure with a warp density of 30 threads / inch and a weft density of 26 threads / inch. That is, there are 30 warp-extending connecting fibers 40 within a 1-inch range in the weft direction, visually appearing as multiple connecting fibers 40. As previously mentioned, the same connecting fiber 40 can pass through the first mesh 13 (second mesh 23) once in and once out. There are 26 weft-extending first fiber filaments 31 within a 1-inch range in the warp direction.

[0096] For example, the fiber mesh 100 has a double-layer woven structure with a warp density of 42 threads / inch and a weft density of 30 threads / inch. That is, there are 42 warp-extending connecting fibers 40 within a 1-inch range in the weft direction. Visually, there are multiple connecting fibers 40. As mentioned earlier, the same connecting fiber 40 can pass through the first mesh 13 (second mesh 23) once in and once out. There are 30 weft-extending first fiber filaments 31 within a 1-inch range in the warp direction.

[0097] In some embodiments, please refer to Figure 2 , Figure 6 (a) and (b) in the text, Figure 6 This is a schematic diagram of the structure of the first opening in the first layer. The structure of the second opening in the second layer is similar. The first opening 11 is non-circular; the second opening 21 is also non-circular. Non-circular refers to shapes other than circles, such as ellipses, polygons, etc. Polygons can be rectangles, hexagons, etc. Hexagons can be regular hexagons or non-regular hexagons. Setting the first opening 11 and the second opening 21 as non-circular reduces the formation of a water film at the openings after the fiber mesh 100 becomes wet, which helps reduce the ventilation resistance of the fiber mesh 100 and improves ventilation efficiency.

[0098] For example, see Figure 6 In (a), the first opening 11 and the second opening 21 are non-regular hexagons. At least two sides of the non-regular hexagon are not equal in length, making it difficult for a water film to form at the opening position, which helps to reduce ventilation resistance and improve ventilation efficiency.

[0099] For example, see Figure 6 In (b), the first opening 11 and the second opening 21 are elliptical, making it difficult for a water film to form at the opening position, which helps to reduce ventilation resistance and improve ventilation efficiency.

[0100] In some embodiments, please refer to Figure 6 In (a), the first opening 11 or the second opening 21 is hexagonal. The length of the long diagonal a1 of the hexagon ranges from [3 mm to 6 mm], and the length of the short diagonal a2 of the hexagon ranges from [2 mm to 5 mm]. The long diagonal a1 of the hexagon is the longest diagonal, and the short diagonal a2 is the shortest diagonal. By limiting the range of the diagonal lengths of the hexagon, the opening size of the first opening 11 or the second opening 21 can be limited, making it less likely for a water film to form at the opening position after the fiber mesh 100 is wetted.

[0101] For example, the first opening 11 or the second opening 21 is hexagonal, with the long diagonal a1 of the hexagon having a length of 4.5 mm and the short diagonal a2 of the hexagon having a length of 3 mm.

[0102] In some embodiments, please refer to Figure 6 In (b), the first opening 11 or the second opening 21 is elliptical. The length of the major diagonal a1 of the ellipse ranges from [4 mm to 6 mm], and the length of the minor diagonal a2 of the ellipse ranges from [2 mm to 5 mm]. The major diagonal a1 of the ellipse is the major axis, and the minor diagonal a2 is the minor axis. By limiting the range of the diagonal lengths of the ellipse, the opening size of the first opening 11 or the second opening 21 can be limited, making it less likely for a water film to form at the opening position after the fiber mesh 100 is wetted.

[0103] For example, the first opening 11 or the second opening 21 is elliptical, with the long diagonal a1 of the ellipse having a length of 6 mm and the short diagonal a2 of the ellipse having a length of 4 mm.

[0104] In some embodiments, please refer to Figure 1 The thickness D of the fiber mesh 100 ranges from 3 mm to 20 mm. Limiting the thickness of the fiber mesh 100 allows it to store a predetermined amount of moisture, ensuring sufficient contact time between the airflow and water, thus improving the humidification effect. The weight range of the fiber mesh 100 is from 80 g / m² to 1500 g / m². This ensures the fiber mesh 100 is within a suitable weight range while effectively storing moisture.

[0105] For example, the thickness of the fiber mesh 100 is 4.5 mm and the weight of the fiber mesh 100 is 290 g / m².

[0106] For example, the thickness of the fiber mesh 100 is 6 mm and the weight of the fiber mesh 100 is 450 g / m².

[0107] In some embodiments, please refer to Figure 1 The water retention per unit weight of the fiber mesh 100 ranges from [1 g / g to 5 g / g]. The ratio of the water retention of the fiber mesh 100 to its own weight can be used as a basis for selecting the first fiber filament 31. This ensures that the fiber mesh 100 has a certain water retention and weight.

[0108] Please see Figure 7 This application provides a filter 200, comprising one or more of the aforementioned fiber mesh fabrics 100 stacked together. The filter 200 provided in this application has the same effects as the aforementioned fiber mesh fabric 100.

[0109] To achieve the predetermined performance requirements of the humidifier, such as humidification capacity, airflow, power consumption, and noise level, the number of fiber mesh fabrics 100 is set as needed, for example, 2 to 6 layers of fiber mesh fabrics 100 stacked together. When multiple fiber mesh fabrics 100 are stacked, they can be arranged in layers and fixed by sewing. The shape of the multiple fiber mesh fabrics 100 is adjusted according to the shape of the filter 200. In this embodiment, the airflow velocity range of the filter 200 can be from 0.3 m / s to 4.0 m / s.

[0110] For example, see Figure 7 A cylindrical filter screen 200 is needed. Multiple fiber mesh fabrics 100 are layered and sewn together to obtain a rectangular mesh fabric substrate. The long side of the rectangular mesh fabric substrate is curled and the two short sides are sewn together to obtain the cylindrical filter screen 200.

[0111] For example, a sheet-like filter 200 is required. This can be obtained by layering and sewing together multiple fiber meshes 100.

[0112] This application provides a humidifier including the filter 200 described above. The humidifier provided in this application has the effects of the fiber mesh 100 described above.

[0113] For example, the humidifier includes a water tank, a water pump, a filter 200, and a fan. The water pump draws water from the water tank to wet the filter 200. The airflow generated by the fan passes through the filter 200, causing the water on the filter 200 to evaporate and be blown out with the airflow, thereby humidifying the air.

[0114] The following experiments were conducted on the filter and humidifier according to embodiments of this application. As shown in Tables 1, 2, and 3 below, in multiple sets of experiments, various parameters of the humidifier filter / mesh fabric, such as thickness (mm), number of mesh layers, warp / weft density (threads / inch), and weight (g / m³), were varied. 2 By controlling the quantitative and non-quantitative relationships between parameters such as the diameter of the connecting fiber, the shape of the first / second opening, and the size (mm) of the first / second opening, the water absorption ratio, ventilation resistance, and humidification capacity of the filter / mesh can be obtained.

[0115] See Figure 6 The first opening 11 or the second opening 21 can be hexagonal or elliptical. A hexagonal shape is a hexagon with varying side lengths and angles. An elliptical shape, also called a deformed ellipse, is a shape obtained by projecting and deforming the original ellipse. The length of the long diagonal a1 of the hexagonal or elliptical shape ranges from [3 mm to 6 mm], and the length of the short diagonal a2 ranges from [2 mm to 5 mm]. Filters / mesh fabrics with these opening characteristics have better humidification and superior air resistance.

[0116] For example, as shown in Tables 1, 2, and 3 below, the thickness of a single layer of mesh fabric can be controlled between 3.0 and 8.0 mm in this experiment. By increasing the number of mesh fabric layers, the wind resistance of mesh fabrics with different thicknesses can be measured. Specifically, under the same measurement conditions, using scheme 3.1, where the first opening 11 or the second opening 21 is a hexagonal shape with a long diagonal of 5.0 mm and a short diagonal of 3.0 mm, or using scheme 3, where the first opening 11 or the second opening 21 is a hexagonal shape with a long diagonal of 4.0 mm and a short diagonal of 2.0 mm, the water absorption ratio of the mesh fabric can reach 3.0 or higher, and the wind resistance coefficient of a single layer of mesh fabric can be controlled to 2.0 Pa or lower. By stacking multiple layers (N≥2), the wind resistance of the multi-layer mesh fabric can be less than N*2.0 Pa.

[0117] Preferably, the warp density of the mesh is controlled at 30-37 threads / inch, the weft density at 23-26 threads / inch, and the thickness of a single layer of mesh is controlled between 3.0-5.0 mm. For example, in scheme 3.1 in Table 2, when the warp density is controlled at 30.5 threads / inch, the weft density at 24 threads / inch, and the thickness of a single layer of mesh is controlled at 3 mm, both single-layer and multi-layer mesh fabrics have good humidification effects.

[0118] Preferably, the basis weight of the mesh fabric (g / m²) 2 Set at 100-350g / m 2 The warp density of the mesh is controlled at 30-37 threads / inch, and the weft density is controlled at 23-26 threads / inch. The humidification capacity of the mesh can reach more than 1000ml / h.

[0119] Filters / mesh fabrics with the above-mentioned opening features have a high water absorption rate, low ventilation resistance, and a large humidification capacity.

[0120] The number, shape, and size of the first / second openings, as well as the diameter and quantity of the connecting fibers, all affect the absorbency and dehydration of the mesh fabric. Good absorbency increases the amount of water absorbed by the filter / mesh fabric of the same area and weight. Good dehydration performance increases the humidification effect of the filter / mesh fabric under the same wind force and resistance conditions.

[0121] Table 1: Water Absorption Ratio Data of Filter Screen / Mesh Fabric

[0122]

[0123] The measurement standard used in the water absorption ratio test is to soak the filter screen in water for 5 minutes, take it out and hang it for 2 minutes before weighing it, and obtain the total weight of the filter screen and the absorbed water after water absorption.

[0124] Water absorption ratio = (total weight of filter screen and absorbed water after water absorption - weight of filter screen before water absorption) / weight of filter screen before water absorption.

[0125] Table 2: Filter / Mesh Fabric Air Resistance Data

[0126]

[0127]

[0128] The thickness (mm) refers to the thickness of a single layer (one layer) of mesh fabric. The unit for airflow is cubic meters per hour (m³ / h). 3 / h). The unit of wind resistance is Pascal (Pa).

[0129] Table 3: Humidification Data for Filters / Mesh Fabric

[0130]

[0131] Temperature is measured in degrees Celsius (°C). Humidity is relative humidity, which is the percentage of water vapor pressure in the air to the saturated water vapor pressure at the same temperature. Humidification capacity is measured in milliliters per hour (ml / h).

[0132] The above description is merely a preferred embodiment of this application and is 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 fibrous web comprising, The first surface layer, the second surface layer and the connecting fiber are included. The first surface layer is a fabric with a plurality of first openings, the edge portion of the first opening has 8 to 40 first meshes; The second surface layer is a fabric with a plurality of second openings, the edge portion of the second opening has 8 to 40 second meshes; The first surface layer and the second surface layer are arranged at intervals, and a plurality of the first openings and a plurality of the second openings are correspondingly connected; Two connecting fibers extend from at least one first mesh to the second mesh to connect the edge portion of the first opening and the edge portion of the second opening corresponding to the first opening; The connecting fiber is a second fiber filament; the diameter of the second fiber filament ranges from 20 microns to 120 microns. The fabric has a weaving line, and the weaving line has a plurality of first fiber filaments, at least part of the surface of the first fiber filament has a water storage groove.

2. The web of claim 1 wherein, The first fiber filament is at least one of synthetic fiber, natural fiber, and regenerated fiber; 3. The web of claim 2 wherein, And / or, at least part of the cross section of the first fiber filament is cross-shaped, multi-leaf-shaped, polygonal, W-shaped or U-shaped; And / or, in the same weaving line, the cross section shape of a part of the first fiber filament is different from that of another part of the first fiber filament; And / or, the weight of the weaving line ranges from 30 grams to 300 grams in 9000 meters, and the number of the first fiber filaments ranges from 18 to 500. The connecting fiber is a single second fiber filament.

4. The fibrous web set forth in any one of claims 1 to 3, wherein, The connecting fiber has an antibacterial layer; 5. The web of claim 4 wherein, And / or, the surface of the second fiber filament has a water storage groove. The number of the first meshes is equal to the number of the second meshes; 6. The fibrous web set forth in any one of claims 1 to 3, wherein, And / or, the surface of the first surface layer is provided with a first concave-convex hydrophobic layer; And / or, the surface of the second surface layer is provided with a second concave-convex hydrophobic layer; And / or, the fiber mesh cloth is a double-layer woven structure, the warp density ranges from 16 to 50 per inch, and the weft density ranges from 14 to 45 per inch; And / or, the first opening is elliptical, rectangular or hexagonal; And / or, the second opening is elliptical, rectangular or hexagonal; And / or, the thickness of the fiber mesh cloth ranges from 3 to 20 millimeters; And / or, the grammage of the fiber mesh cloth ranges from 80 to 1500 grams per square meter; And / or, the water holding capacity per unit weight of the fiber mesh cloth ranges from 1 to 5 grams per gram. The first opening or the second opening is hexagonal, the length of the long diagonal of the hexagon ranges from 3 to 6 millimeters, and the length of the short diagonal of the hexagon ranges from 2 to 5 millimeters.

7. The fibrous web set forth in any one of claims 1 to 3, wherein, The first opening or the second opening is a quasi-hexagon, the length of the long diagonal of the quasi-hexagon is 5.0 millimeters, and the length of the short diagonal of the quasi-hexagon is 3.0 millimeters; 8. The fibrous web set forth in any one of claims 1 to 3, wherein, Or, the first opening or the second opening is a quasi-hexagon, the length of the long diagonal of the quasi-hexagon is 4.0 millimeters, and the length of the short diagonal of the quasi-hexagon is 2.0 millimeters. ​ 9. A filter screen, characterized by A filter comprising a web according to any one of claims 1 to 8, or a plurality of layers of a web according to any one of claims 1 to 8 stacked one on top of the other.

10. A humidifier characterised in that, A filter comprising a web according to claim 9.

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