Sweat-absorbing and moisture-removing composite fabric

Abstract

The utility model discloses a sweat-absorbing and moisture-removing composite fabric, which relates to the technical field of composite fabrics, and comprises a skin-friendly moisture-absorbing layer, a moisture-absorbing layer, a moisture-absorbing layer and a moisture-removing layer, the one-way moisture guide functional layer is fixedly connected to the outer side of the skin-friendly moisture absorption layer and is provided with a gradient hydrophilic structure so as to realize one-way moisture transfer; the evaporation diffusion layer is fixedly connected to the outer side of the one-way moisture guiding functional layer and used for accelerating moisture diffusion and evaporation; through the synergistic effect of the gradient hydrophilic structure from the hydrophilic coating to the hydrophobic coating and the longitudinal fiber bundles, water is forced to be transmitted in a one-way mode from inside to outside, the back-seepage risk is eliminated, the second bonding area of the net-shaped adhesive film structure is combined with the hydrophobic coating to form a double-blocking barrier, and the water-retaining effect is good. The one-way transmission stability of sweat is still maintained even in a high-humidity environment.

Description

Technical Field

[0001] This utility model relates to the field of composite fabric technology, and in particular to a sweat-wicking and moisture-wicking composite fabric. Background Technology

[0002] Composite fabrics are a new type of material made by bonding one or more layers of textile, non-woven, and other functional materials together. Suitable for textiles such as sofas and clothing, moisture-wicking composite fabrics, as an important branch of functional textile materials, are mainly used in sportswear, outdoor equipment, and medical protective equipment. Current mainstream technologies mostly employ a double-layer composite structure (such as a hydrophilic top layer + a hydrophobic bottom layer) or homogeneous modified fibers, relying on the hygroscopicity of a single material or the cross-sectional shape of the fiber to achieve basic sweat management. Existing solutions generally improve evaporation efficiency by adding hydrophilic additives or physical micropores, but they face common problems such as interrupted moisture-wicking pathways, sweat retention between layers, and insufficient evaporation area under high-intensity sweating scenarios.

[0003] Traditional solutions rely on a single hydrophobic layer for passive barrier, lacking a gradient hydrophilic structure from the inside out for synergistic effect. Sweat is prone to reverse penetration at the interlayer interface due to capillary imbalance, leading to persistent dampness in the inner layer. Furthermore, existing full-coat adhesive bonding methods clog moisture-wicking channels and lack a mesh-like adhesive film sealing interface design. In high-humidity environments, moisture can overcome the single-layer hydrophobic barrier and reverse penetrate, causing "sweat backflow." Therefore, a sweat-wicking composite fabric is provided to address these issues. Utility Model Content

[0004] The purpose of this utility model is to provide a sweat-wicking and moisture-wicking composite fabric to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a sweat-wicking and moisture-absorbing composite fabric, comprising:

[0006] A skin-friendly, moisture-wicking layer is used to come into contact with the skin and absorb sweat;

[0007] A one-way moisture-wicking functional layer is fixedly connected to the outside of the skin-friendly moisture-absorbing layer and has a gradient hydrophilic structure to achieve one-way moisture transfer.

[0008] An evaporation diffusion layer is fixedly connected to the outside of the one-way moisture-wicking functional layer to accelerate moisture diffusion and evaporation.

[0009] As a further improvement of this utility model: the skin-friendly moisture-absorbing layer and the one-way moisture-wicking functional layer are bonded together by a dot matrix hot melt adhesive layer, and the bonding points form a moisture-wicking channel that runs through the two layers.

[0010] The unidirectional moisture-wicking functional layer and the evaporation diffusion layer are bonded together by a continuous hot-melt adhesive layer to form a sealed interface that prevents water vapor penetration.

[0011] As a further embodiment of this utility model: the unidirectional moisture-wicking functional layer includes a substrate layer and a capillary moisture-wicking mesh embedded therein. The upper surface of the substrate layer is provided with a hydrophobic coating, and the lower surface is fixedly connected with a hydrophilic coating to form the gradient hydrophilic structure.

[0012] The capillary moisture-wicking mesh contains longitudinal fiber bundles that penetrate the entire thickness of the matrix layer, and both ends extend to the bonding interface of the skin-friendly moisture-absorbing layer and the evaporation diffusion layer, respectively.

[0013] As a further embodiment of this utility model: the evaporation diffusion layer is composed of a microporous membrane layer and a protective surface layer, wherein the microporous membrane layer is fixed to the inner surface of the protective surface layer by hot pressing and melting.

[0014] The outer surface of the protective layer is provided with a breathable protrusion structure, and the gaps between the protrusions form an evaporation window that communicates with the pores of the microporous membrane layer.

[0015] As a further embodiment of this utility model: the hot melt adhesive layer includes a first adhesive area and a second adhesive area that are spaced apart;

[0016] The first bonding area is located between the skin-friendly moisture-absorbing layer and the one-way moisture-wicking functional layer, and adopts a discrete dispensing structure;

[0017] The second bonding area is located between the unidirectional moisture-wicking functional layer and the evaporation diffusion layer, and adopts a mesh adhesive film structure;

[0018] The location of the adhesive dots in the first bonding area corresponds to the location of the longitudinal fiber bundles of the capillary moisture-wicking mesh.

[0019] Compared with the prior art, the beneficial effects of this utility model are:

[0020] In this invention, the gradient hydrophilic structure from hydrophilic coating to hydrophobic coating, in synergy with the longitudinal fiber bundles, forces water to be transferred unidirectionally from the inside to the outside, eliminating the risk of backflow. The second bonding area of ​​the mesh film structure, combined with the hydrophobic coating, forms a double barrier, ensuring the stability of unidirectional sweat transfer even in high humidity environments. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0022] Figure 2 This is a schematic diagram of the structure of the first bonding area in this utility model;

[0023] Figure 3 This is a schematic diagram of the structure of the second bonding area in this utility model;

[0024] Figure 4 This is a schematic diagram of the structure at point A in this utility model.

[0025] In the diagram: 1. Skin-friendly moisture-absorbing layer; 2. One-way moisture-wicking functional layer; 3. Evaporation diffusion layer; 4. First bonding area; 5. Second bonding area; 21. Substrate layer; 22. Capillary moisture-wicking mesh; 23. Hydrophobic coating; 24. Hydrophilic coating; 31. Microporous membrane layer; 32. Protective surface layer; 33. Breathable convex structure; 34. Evaporation window; 41. Moisture-wicking channel; 221. Longitudinal fiber bundle. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model 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 this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. In the description of this utility model, it should be noted that unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "setting" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. The embodiments of this utility model will be described below based on its overall structure.

[0028] Reference Figures 1 to 4 In this embodiment of the utility model, a sweat-absorbing and moisture-wicking composite fabric includes:

[0029] Skin-friendly moisture-absorbing layer 1, used to come into contact with the skin and absorb sweat;

[0030] One-way moisture-wicking functional layer 2 is fixedly connected to the outside of skin-friendly moisture-absorbing layer 1 and has a gradient hydrophilic structure to achieve unidirectional moisture transfer;

[0031] The evaporation diffusion layer 3 is fixedly connected to the outside of the one-way moisture-guiding functional layer 2 and is used to accelerate the diffusion and evaporation of moisture.

[0032] Using the above scheme: sweat is first captured by the skin-friendly moisture-wicking layer 1, then transferred unidirectionally through the gradient hydrophilic structure of the unidirectional moisture-wicking functional layer 2, and finally rapidly diffused and evaporated in the evaporation diffusion layer 3. The gradient hydrophilic structure forms a driving force for moisture transfer and prevents sweat from seeping back.

[0033] The skin-friendly moisture-absorbing layer 1 and the one-way moisture-wicking functional layer 2 are bonded together by a dot matrix hot melt adhesive layer, and the bonding points form a moisture-wicking channel 41 that runs through the two layers; the one-way moisture-wicking functional layer 2 and the evaporation diffusion layer 3 are bonded together by a continuous hot melt adhesive layer, forming a sealed interface that prevents water vapor penetration.

[0034] The above solution is adopted: the moisture-wicking channel 41 formed by the dot matrix hot melt adhesive allows sweat to pass vertically and avoids interlayer retention; the sealing interface formed by the continuous hot melt adhesive film blocks the reverse penetration of moisture, ensuring that the hydrophobic coating 23 of the unidirectional moisture-wicking functional layer 2 effectively blocks back seepage, while preventing the intrusion of external pollutants.

[0035] The unidirectional moisture-wicking functional layer 2 includes a substrate layer 21 and a capillary moisture-wicking mesh 22 embedded therein. The upper surface of the substrate layer 21 is provided with a hydrophobic coating 23, and the lower surface is fixedly connected with a hydrophilic coating 24 to form a gradient hydrophilic structure. The longitudinal fiber bundles 221 contained in the capillary moisture-wicking mesh 22 penetrate the entire thickness of the substrate layer 21, and both ends extend to the bonding interface of the skin-friendly moisture-absorbing layer 1 and the evaporation diffusion layer 3, respectively.

[0036] Using the above scheme: the hydrophilic coating 24 actively adsorbs the sweat of the skin-friendly moisture-absorbing layer 1 and transports it upward through the capillary effect of the longitudinal fiber bundle 221; the hydrophobic coating 23 prevents the water from flowing back downward, forming a unidirectional transmission path, and the longitudinal fiber bundle 221 is designed to run through the entire thickness to directly transport the sweat from the skin-friendly moisture-absorbing layer 1 to the pores of the microporous membrane layer 31 of the evaporation diffusion layer 3.

[0037] The evaporation diffusion layer 3 is composed of a microporous membrane layer 31 and a protective surface layer 32. The microporous membrane layer 31 is fixed to the inner surface of the protective surface layer 32 by hot pressing and melting. The outer surface of the protective surface layer 32 is provided with a breathable protrusion structure 33, and the gap between the protrusions forms an evaporation window 34 that communicates with the pores of the microporous membrane layer 31.

[0038] Using the above scheme: after sweat is conducted through the longitudinal fiber bundle 221 into the microporous membrane layer 31, it diffuses rapidly in the pores. The breathable protrusion structure 33 of the protective surface layer 32 guides the moisture to the evaporation window 34, increasing the evaporation surface area. The hot-pressing fusion composite method ensures that the pores of the microporous membrane layer 31 are precisely aligned with the evaporation window 34, avoiding blockage of the evaporation path.

[0039] The hot melt adhesive layer includes a first adhesive area 4 and a second adhesive area 5 spaced apart; the first adhesive area 4 is located between the skin-friendly moisture-absorbing layer 1 and the unidirectional moisture-wicking functional layer 2, and adopts a discrete dispensing structure; the second adhesive area 5 is located between the unidirectional moisture-wicking functional layer 2 and the evaporation diffusion layer 3, and adopts a mesh adhesive film structure; the position of the adhesive dots in the first adhesive area 4 corresponds to the position of the longitudinal fiber bundles 221 of the capillary moisture-wicking mesh 22.

[0040] The above scheme is adopted: the discrete dispensing structure of the first bonding area 4 fixes the interlayer structure while retaining the moisture-conducting channel 41 of the longitudinal fiber bundle 221; the mesh adhesive film structure of the second bonding area 5 completely seals the interface between the unidirectional moisture-conducting functional layer 2 and the evaporation diffusion layer 3 to prevent moisture conduction from being interrupted, and the adhesive dots are aligned with the longitudinal fiber bundle 221 to ensure that the moisture-conducting channel 41 is vertically connected.

[0041] The working principle of this utility model is as follows: when sweat comes into contact with the skin-friendly moisture-absorbing layer 1, its irregular fiber groove structure quickly absorbs liquid water and forms surface diffusion through the honeycomb mesh. The absorbed sweat gathers on the outer surface of the skin-friendly moisture-absorbing layer 1 under the action of capillary force, waiting to enter the moisture-conducting channel 41.

[0042] The accumulated sweat penetrates vertically through the moisture-wicking channel 41 of the first adhesive area 4 to the one-way moisture-wicking functional layer 2; the hydrophilic coating 24 actively absorbs moisture and drives it to be transported upward along the longitudinal fiber bundle 221, while the hydrophobic coating 23 simultaneously blocks the backflow of droplets, forming a one-way transmission path from the inside to the outside. The design of the longitudinal fiber bundle 221 penetrating the substrate layer 21 ensures that the sweat is directly transported to the interface of the evaporation diffusion layer 3.

[0043] Sweat enters the pore network of the microporous membrane layer 31 through the longitudinal fiber bundles 221, and diffuses laterally in the microporous structure to form a uniform water film. The breathable protrusion structure 33 of the protective surface layer 32 guides the moisture to the evaporation window 34, thereby increasing the evaporation rate by expanding the gas-liquid contact area. The hot-pressing melt composite method maintains the connectivity between the microporous membrane layer 31 and the evaporation window 34, avoiding path blockage.

[0044] The mesh film structure of the second bonding area 5 forms a continuous sealing interface between the unidirectional moisture-guiding functional layer 2 and the evaporation diffusion layer 3, blocking the intrusion of external pollutants and the reverse permeation of internal vapor. The moisture-guiding channel 41 and the longitudinal fiber bundle 221 are precisely aligned to ensure the vertical continuity of the moisture-guiding path throughout the entire process. The hydrophobic coating 23 works together with the sealing interface to suppress backflow and maintain the long-term stability of unidirectional moisture guidance.

[0045] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A sweat-wicking and moisture-absorbing composite fabric, characterized in that, Including those that are compounded sequentially from the inside out: Skin-friendly moisture-absorbing layer (1), used to come into contact with the skin and absorb sweat; A one-way moisture-wicking functional layer (2) is fixedly connected to the outside of the skin-friendly moisture-wicking layer (1) and has a gradient hydrophilic structure to achieve one-way moisture transfer; An evaporation diffusion layer (3) is fixedly connected to the outside of the one-way moisture-wicking functional layer (2) to accelerate the diffusion and evaporation of moisture.

2. The composite fabric according to claim 1, characterized in that: The skin-friendly moisture-absorbing layer (1) and the one-way moisture-wicking functional layer (2) are bonded together by a dot matrix hot melt adhesive layer, and the bonding points form a moisture-wicking channel (41) that runs through the two layers. The unidirectional moisture-wicking functional layer (2) and the evaporation diffusion layer (3) are bonded together by a continuous hot-melt adhesive layer to form a sealed interface that prevents water vapor penetration.

3. The composite fabric according to claim 1, characterized in that: The unidirectional moisture-wicking functional layer (2) includes a substrate layer (21) and a capillary moisture-wicking mesh (22) embedded therein. The upper surface of the substrate layer (21) is provided with a hydrophobic coating (23), and the lower surface is fixedly connected with a hydrophilic coating (24) to form the gradient hydrophilic structure. The capillary moisture-wicking mesh (22) contains longitudinal fiber bundles (221) that penetrate the full thickness of the matrix layer (21) and extend to the bonding interface of the skin-friendly moisture-absorbing layer (1) and the evaporation diffusion layer (3) at both ends.

4. The composite fabric according to claim 1, characterized in that: The evaporation diffusion layer (3) is composed of a microporous membrane layer (31) and a protective surface layer (32), wherein the microporous membrane layer (31) is fixed to the inner surface of the protective surface layer (32) by hot pressing and melting. The outer surface of the protective layer (32) is provided with a breathable protrusion structure (33), and the gap between the protrusions forms an evaporation window (34) and communicates with the pores of the microporous membrane layer (31).

5. The composite fabric according to claim 2, characterized in that: The hot melt adhesive layer includes a first adhesive area (4) and a second adhesive area (5) that are spaced apart; The first adhesive area (4) is located between the skin-friendly moisture-absorbing layer (1) and the one-way moisture-wicking functional layer (2), and adopts a discrete dispensing structure; The second bonding area (5) is located between the unidirectional moisture-wicking functional layer (2) and the evaporation diffusion layer (3), and adopts a mesh film structure; The position of the adhesive dots in the first bonding area (4) corresponds to the position of the longitudinal fiber bundles (221) of the capillary moisture-wicking mesh (22).

Images