One-way moisture-conducting fabric

Abstract

The utility model discloses a one-way moisture conducting fabric which comprises a surface layer, a middle layer and a bottom layer which are sequentially arranged in a stacked mode, the surface layer is of a net-shaped structure formed by laying hydrophilic fibers, the middle layer is of a net-shaped structure formed by laying fibers with a water repellent function, and the bottom layer is of a net-shaped structure formed by laying fibers with a water absorption function. According to the one-way moisture-conducting fabric, the surface layer has a hydrophilic function, so that water can be quickly absorbed and guided to the bottom layer through the middle layer, the problems of liquid leakage and the like caused by moisture and stuffiness of the surface layer and low absorption speed are reduced, and the dryness and dryness of the surface layer are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of textile manufacturing technology, especially to a one-way wet conductive fabric. BACKGROUND

[0002] The one-way wet conductive fabric is a special designed textile material, which can quickly conduct liquid or moisture (such as sweat, urine, etc.) from one side of the fabric to the other side. The one-way wet conductive fabric is widely used in the fields of sanitary products (such as diapers, sanitary napkins), medical dressings, etc., which can effectively improve the comfort and functionality of the products.

[0003] In the prior art, in order to realize the one-way wet conductive function, the fibers or fabric are usually water-repellent finished, and then combined with a water-absorbing material layer to form a structure with a water-repellent surface layer and a water-absorbing surface layer in sequence, so that liquid can flow from the water-repellent surface layer to the water-absorbing surface layer, thereby realizing one-way wet conduction. However, the fibers or fabric of the water-repellent surface layer in the fully water-repellent state will affect the water absorption speed, and when in contact with water, most of the water will not be able to quickly infiltrate due to the water-repellent layer, directly affecting the wet conduction effect, causing the surface layer to be damp and hot, and the slow absorption speed leading to liquid leakage and other problems. SUMMARY

[0004] In view of the slow water absorption speed of the one-way wet conductive fabric in the prior art, the utility model provides a one-way wet conductive fabric with high wet conduction speed. The utility model adopts the following technical scheme:

[0005] The utility model discloses a one-way wet conductive fabric, including the surface layer, the middle layer and the bottom layer which are sequentially stacked, the surface layer is the net -like structure of hydrophilic fiber, the middle layer is the net -like structure of the fiber with water -repellent function, the bottom layer is the net -like structure of the fiber with water absorption function.

[0006] In one implementation mode of the utility model, the surface layer, the middle layer and the bottom layer are mutually entangled and fixed through needling or hydroentanglement.

[0007] In one implementation mode of the utility model, the surface layer, the middle layer and the bottom layer are mutually adhered through glue spraying.

[0008] In one implementation mode of the utility model, the grammage of the one-way wet conductive fabric is 40-150g / m 2 .

[0009] In one implementation mode of the utility model, the grammage ratio of the surface layer, the middle layer and the bottom layer is 1.5-3:0.5-2:6-7.5.

[0010] In one implementation mode of the utility model, the hydrophilic fiber is hydrophilic finished polyester fiber.

[0011] In one implementation mode of the utility model, the hydrophilic fiber is cotton fiber treated by water repellent finishing and hydrophilic finishing.

[0012] In one implementation mode of the utility model, the fiber with water repellent function is cotton fiber treated by water repellent finishing.

[0013] In one implementation mode of the utility model, the fiber with water absorption function is absorbent cotton fiber.

[0014] In one implementation mode of the utility model, the fiber with water absorption function is absorbent cotton fiber and CMC modified cotton fiber.

[0015] Due to the above technical scheme, the utility model has the beneficial effects of:

[0016] The unidirectional wet guiding fabric of the utility model forms gradient hydrophilic capacity between the surface layers through the water repellent effect of the water repellent middle layer and the bottom layer with water absorption function, so that the moisture (such as sweat, urine, etc.) can be guided from the middle layer to the bottom layer; the surface layer has hydrophilic function, which can help to quickly absorb water and guide to the bottom layer through the middle layer, reduce the problems of surface layer damp and hot and liquid leakage caused by slow absorption speed, provide the dryness of the fabric, so that good unidirectional wet guiding effect can be realized. Compared with the double-layer structure fabric only with water repellent function layer and water absorption function layer, the utility model has the surface layer with hydrophilic function, the surface layer can improve the water absorption speed, so that the moisture is not affected by the water repellent function layer and the water absorption speed is slowed down, thereby causing the problems of surface layer damp and hot and liquid leakage caused by slow absorption speed. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is the structure schematic view of the unidirectional wet guiding fabric related to the utility model.

[0018] Figure 2 It is the structure split view of the unidirectional wet guiding fabric related to the utility model. DETAILED DESCRIPTION

[0019] The utility model will be further described in detail by specific implementation mode combined with the drawings. In the following implementation mode, many details are described in order to make the utility model be better understood. However, the skilled person can easily realize that part of the features can be omitted in different cases, or can be replaced by other materials, methods. In some cases, some operations related to the utility model are not shown or described in the specification, in order to avoid the core part of the utility model being overwhelmed by too much description, and for the skilled person, detailed description of the related operation is not necessary, and the related operation can be completely understood according to the description in the specification and the general technical knowledge in the art.

[0020] Furthermore, the features, operations, or characteristics described in the specification can be combined in any suitable manner to form various embodiments. At the same time, the steps or actions in the method description can be rearranged or adjusted in a manner obvious to those skilled in the art. Therefore, the various orders in the specification and drawings are only for the clear description of a particular embodiment and do not imply a necessary order, unless otherwise stated that a particular order must be followed.

[0021] Traditional one-way moisture-wicking fabrics typically achieve this function by treating the fibers or fabric with water-repellent agents and then combining them with an absorbent material layer. This creates a structure with sequentially arranged water-repellent and absorbent layers, allowing liquid to flow from the water-repellent layer to the absorbent layer, thus achieving one-way moisture wicking. However, the water-repellent fibers or fabric in their fully water-repellent state affect the absorption rate. When in contact with water, a significant portion of the water cannot quickly penetrate due to the water-repellent layer, directly impacting the moisture-wicking effect and causing problems such as a damp and stuffy surface and leakage due to slow absorption. Therefore, this invention creatively proposes a one-way moisture-wicking fabric that wicks away moisture quickly. The following detailed description of this invention's one-way moisture-wicking fabric, in conjunction with specific embodiments and accompanying drawings, provides a comprehensive understanding.

[0022] Figure 1 This is a structural schematic diagram of the unidirectional moisture-wicking fabric 100 involved in this utility model. Figure 2 This is a structural exploded view of the unidirectional moisture-wicking fabric 100 involved in this utility model.

[0023] like Figure 1 and Figure 2 As shown, in one specific embodiment, the unidirectional moisture-wicking fabric 100 can be a three-layer structure, which may include a top layer 10, a middle layer 20, and a bottom layer 30. In some specific embodiments, the unidirectional moisture-wicking fabric 100 may not be limited to a three-layer structure; for example, it may also contain other functional layers.

[0024] In one specific embodiment, a top layer 10, a middle layer 20, and a bottom layer 30 are stacked sequentially. The top layer 10 is disposed on the middle layer 20, and the middle layer 20 is disposed on the bottom layer 30.

[0025] In an embodiment, the surface layer 10 is a fibrous web of hydrophilic fibers, the intermediate layer 20 is a fibrous web of water repellent fibers, and the bottom layer 30 is a fibrous web of water absorbent fibers. The water repellent function of the intermediate layer 20 and the water absorbent function of the bottom layer 30 form a gradient of hydrophilicity, so that water (e.g., sweat, urine, etc.) can be directed from the intermediate layer 20 to the bottom layer 30. The surface layer 10 has a hydrophilic function, which can help to quickly absorb water and direct the water through the intermediate layer 20 to the bottom layer 30, reducing the problems of surface layer dampness and heat, slow absorption speed leading to leakage, etc., and improving the dryness of the surface layer.

[0026] In an embodiment, the hydrophilic fibers of the surface layer 10 can be hydrophilic finished polyester fibers. The hydrophilic finishing can be a conventional treatment in the art, for example, the hydrophilic finished polyester fibers can be obtained by immersing the fibers in a hydrophilic agent. In addition, the polyester fibers themselves do not retain water, and after hydrophilic finishing, the fibers have the property of being hydrophilic but not water-retaining, which is beneficial for quickly absorbing water. The surface layer 10 can quickly absorb water and the water can be transferred to the intermediate layer 20 and the bottom layer 30, thereby reducing the problems of surface layer dampness and heat, slow absorption speed leading to leakage, etc., and improving the dryness of the surface layer.

[0027] In an embodiment, the hydrophilic fibers of the surface layer 10 can be fibers that have been water repellent finished and hydrophilic finished. The water repellent finishing and the hydrophilic finishing can be conventional treatments in the art, for example, the fibers can be sequentially immersed in a water repellent agent for water repellent finishing and in a hydrophilic agent for hydrophilic finishing. The fibers are wrapped by the water repellent agent after water repellent finishing, forming a water repellent film layer so that water does not penetrate into the interior of the fibers. Then the fibers are hydrophilic finished, forming a hydrophilic layer on the surface of the fibers, thereby making the fibers have the property of being hydrophilic but not water-retaining, which is beneficial for quickly absorbing water, reducing the problems of surface layer dampness and heat, slow absorption speed leading to leakage, etc., and improving the dryness of the surface layer.

[0028] In an embodiment, the hydrophilic fibers of the surface layer 10 can be cotton fibers that have been water repellent finished and hydrophilic finished. Cotton fibers have the advantages of being more comfortable and skin-friendly.

[0029] In an embodiment, the fibers can be entangled and fixed with each other by needling or hydroentanglement to form the surface layer 10, i.e., the fibrous web of hydrophilic fibers.

[0030] In an embodiment, the water repellent fibers of the intermediate layer 20 are water repellent finished fibers. The water repellent finishing can be a conventional treatment in the art, for example, the fibers can be immersed in a water repellent agent for water repellent finishing. The fibers are wrapped by the water repellent agent after water repellent finishing, forming a water repellent film layer so that water does not penetrate into the interior of the fibers. Thus, water can flow to other layers (the bottom layer 30) through the pores between the fibers.

[0031] In a specific embodiment, the water-repellent fibers of the intermediate layer 20 are water-repellent treated cotton fibers. Cotton fibers have the advantage of being more comfortable and skin-friendly.

[0032] In a specific embodiment, the fibers can be entangled and fixed with each other by needling or hydroentangling to form the intermediate layer 20, i.e., a net-like structure formed by the water-repellent fibers.

[0033] In a specific embodiment, the water-absorbing fibers of the bottom layer 30 can include cotton fibers. Cotton fibers have good water-absorbing and water-locking (water-retaining) properties, specifically: the main component of cotton fibers is cellulose, and the cellulose molecular chain contains a large number of hydrophilic functional groups, i.e., hydroxyl groups (-OH), which can form hydrogen bonds with water molecules, thereby making cotton fibers exhibit strong hydrophilicity; in addition, this interaction enables water molecules to be firmly adsorbed on the fiber surface and gradually penetrate into the fiber interior; cotton fibers have many small gaps and channels inside, forming a complex porous structure, which can accommodate a large amount of water, increasing the water-absorbing capacity of the fibers; the surface of cotton fibers has many small grooves and gaps, which can rapidly absorb water into the fiber interior through capillary action; the diameter of cotton fibers is very small (usually 10-20 microns), and the fibers are interwoven with each other, forming a large specific surface area; the larger the specific surface area, the greater the contact area between the fibers and water molecules, and the higher the water-absorbing efficiency; the gaps between cotton fibers can accommodate a large amount of water, especially in the case of multiple layers of superposition, water can flow freely between the fibers, further improving the water-absorbing capacity.

[0034] In a specific embodiment, the water-absorbing fibers of the bottom layer 30 can include defatted cotton fibers. Compared with cotton fibers, defatted cotton fibers have removed natural oils, waxes, and other impurities in cotton, which can hinder water penetration and reduce the water-absorbing capacity of cotton fibers. Therefore, defatted cotton fibers have stronger water-absorbing capacity.

[0035] In a specific embodiment, the water-absorbing fibers of the bottom layer 30 can include CMC modified cotton fibers. CMC modified cotton fibers have excellent water-absorbing properties, specifically: by introducing a primer CMC (carboxymethyl cellulose), carboxyl groups (-COOH) can be introduced, which are a functional group with strong polarity and can form hydrogen bonds with water molecules, significantly enhancing the hydrophilicity of the fibers. Compared with the hydroxyl groups in the original cotton fibers, the carboxyl groups can provide more hydrogen bond binding sites, making it easier for water molecules to be adsorbed on the fiber surface and penetrate into the fiber interior. This additional hydrogen bond interaction can greatly improve the water-absorbing capacity of the fibers.

[0036] In a specific embodiment, the water-absorbing fibers of the bottom layer 30 can include defatted cotton fibers and CMC modified cotton fibers.

[0037] In a specific embodiment, the fibers can be entangled and fixed with each other by needle punching to form the bottom layer 30, i.e., a net-like structure in which the fibers with the water absorption function are laid.

[0038] In a specific embodiment, the unidirectional moisture management fabric 100 is a non-woven fabric. The top layer 10, the middle layer 20, and the bottom layer 30 are all non-woven fabrics.

[0039] In a specific embodiment, the top layer 10, the middle layer 20, and the bottom layer 30 can be combined with each other by water jet, needle punching, glue spraying, etc. to obtain the unidirectional moisture management fabric 100 including a three-layer structure. For example, the top layer 10, the middle layer 20, and the bottom layer 30 can be entangled and fixed with each other by needle punching or water jet, or the top layer 10, the middle layer 20, and the bottom layer 30 can be adhered to each other by glue spraying, or two of the top layer 10, the middle layer 20, and the bottom layer 30 are entangled and fixed with each other by needle punching or water jet, and the remaining two layers are adhered to each other by glue spraying.

[0040] In a specific embodiment, the unidirectional moisture management fabric 100 can have a grammage of 40-150 g / m 2 .

[0041] In a specific embodiment, the bottom layer 30 can have a grammage of 40-200 g / m 2 .

[0042] In a specific embodiment, the mass ratio of the top layer 10, the middle layer 20, and the bottom layer 30 can be (1.5-3):(0.5-2):(6-7.5).

[0043] In a specific embodiment, the top layer 10 can account for 15%-30% of the mass of the unidirectional moisture management fabric 100.

[0044] In a specific embodiment, the middle layer 20 can account for 5%-20% of the mass of the unidirectional moisture management fabric 100.

[0045] In a specific embodiment, the bottom layer 30 can account for 60%-75% of the mass of the unidirectional moisture management fabric 100.

[0046] In a specific embodiment, the bottom layer 30 can be an outer layer close to the external environment, and the top layer 10 can be an inner layer close to the human body. In this way, the moisture (e.g., sweat, urine, etc.) generated by the human body can be absorbed to keep the skin dry and comfortable.

[0047] The above is a further detailed description of the utility model made in combination with specific embodiments, and cannot be deemed as limiting the specific implementation of the utility model to these descriptions. For ordinary skilled persons in the technical field to which the utility model belongs, without departing from the concept of the utility model, a number of simple deductions or substitutions can be made, and all of them shall be deemed as falling within the protection scope of the utility model.

Claims

1. A one-way moisture conducting fabric, characterized in that, The present application discloses a water-absorbing and water-repellent composite fabric, which comprises a surface layer, a middle layer and a bottom layer arranged in sequence.

2. The single-woven moisture management fabric according to claim 1, wherein, The surface layer, the middle layer and the bottom layer are fixed and consolidated with each other through needle punching or water jetting.

3. The one-way wicking fabric of claim 1, wherein, The surface layer, the middle layer and the bottom layer are adhered to each other through glue spraying.

4. The one-way wicking fabric of claim 1, wherein, The single-way moisture conducting fabric has a gram weight of 40-150 g / m 2 .

5. The single-wear side fabric according to claim 1 or 4, wherein The grammage ratio of the surface layer, the middle layer and the bottom layer is 1.5-3:0.5-2:6-7.

5.

6. The one-way wicking fabric of claim 1, wherein, The hydrophilic fiber is hydrophilic finished polyester fiber.

7. The one-way wicking fabric of claim 1, wherein, The hydrophilic fiber is cotton fiber finished with water-repellent finishing and hydrophilic finishing.

8. The one-way wicking fabric of claim 1, wherein, The fiber with water-repellent function is cotton fiber finished with water-repellent finishing.

9. The one-way wicking fabric of claim 1, wherein, The fiber with water-absorbing function is defatted cotton fiber.

10. The one-way wicking fabric of claim 1, wherein, The fiber with water-absorbing function is defatted cotton fiber and CMC modified cotton fiber.

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