One-way moisture conducting fabric

Abstract

The utility model belongs to the field of textile technology, concretely relates to a one-way wet guide fabric, it includes the water absorption layer and water guide layer of laminated setting, water guide layer is close to skin setting, water guide layer includes polyester layer and polypropylene water guide unit in jacquard structure form setting on this polyester layer, water absorption layer includes modified polyester layer or cotton fiber layer. Compared with prior art, the fabric of the utility model sets up double -deck structure, the polypropylene water guide unit of this fabric close to skin side has hydrophobicity, the water absorption layer of far side from skin is modified polyester layer or cotton fiber layer, has hydrophilic, therefore sweat can be quickly from water guide layer to water absorption layer and quickly evaporate, and the water guide layer of hydrophobic simultaneously makes the body sweat when wearing not to stick to the body, in addition to modified polyester layer or cotton fiber layer moisture fast evaporation carries away a large amount of heat, and further makes the human body feel cool, has good one-way wet guide performance.

Description

Technical Field

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

[0002] One-way moisture wicking is a special fabric property that allows moisture or sweat to rapidly transfer from the inner layer of the fabric (the side in contact with the skin) to the outer layer (the side away from the skin), where it evaporates and diffuses. This transfer process is directional, meaning that moisture or sweat can only move from the inner layer to the outer layer and cannot move in the opposite direction.

[0003] One-way moisture-wicking fabrics effectively wick away sweat in one direction, helping the body stay dry, especially during outdoor activities in autumn and winter, preventing hypothermia caused by sweating. One-way moisture-wicking fabrics are commonly used in sportswear such as sports T-shirts, running pants, and training clothes, helping to quickly wick sweat away from the skin's surface to the outer layer, keeping athletes dry and comfortable. They can also be used in moisture-reducing underwear, mountaineering and skiing clothing used in extreme weather, and medical care clothing to keep patients dry, improving skin dryness and comfort.

[0004] However, the moisture-wicking and quick-drying properties of existing one-way moisture-wicking fabrics still need improvement. Therefore, there is a continued need in the art to provide a one-way moisture-wicking fabric with excellent moisture-wicking and quick-drying properties. Utility Model Content

[0005] The purpose of this invention is to overcome the defects of the prior art and provide a one-way moisture-wicking fabric. The one-way moisture-wicking fabric includes a water-absorbing layer and a water-wicking layer stacked together. The water-wicking layer includes discrete polypropylene water-wicking units, which can quickly transfer water vapor to the water-absorbing layer. At the same time, the gaps between the polypropylene water-wicking units form channels suitable for rapid transfer of water vapor, thereby improving the one-way moisture-wicking effect.

[0006] The objective of this utility model can be achieved through the following technical solutions.

[0007] In a first aspect, this application provides a one-way moisture-wicking fabric, the one-way moisture-wicking fabric comprising a water-absorbing layer and a water-wicking layer stacked together, the water-wicking layer being disposed close to the skin, the water-wicking layer comprising a polyester layer and polypropylene water-wicking units disposed on the polyester layer in a jacquard structure, the water-absorbing layer comprising a modified polyester layer or a cotton fiber layer.

[0008] In one embodiment of the first aspect, the absorbent layer is made of highly absorbent super-cotton-like polyester, which has a moisture regain of more than 4% as determined by the national standard GB / T 9995-1997.

[0009] In one embodiment of the first aspect, the water-guiding layer includes discrete polypropylene water-guiding units arranged linearly, with adjacent columns of polypropylene water-guiding units staggered to form gaps filled with polyester coils. The height of the polyester coils is less than the height of the polypropylene water-guiding units.

[0010] In one embodiment of the first aspect, the total area of ​​the polypropylene water-conducting unit accounts for 60-80% of the total area of ​​the water-conducting layer.

[0011] In one embodiment of the first aspect, the total area of ​​the polypropylene water-conducting unit accounts for 65-70% of the total area of ​​the water-conducting layer.

[0012] In one embodiment of the first aspect, the polypropylene water-conducting unit is made of polypropylene fibers with an irregular cross-section, the cross-section of which includes grooves recessed toward the interior of the fiber.

[0013] In one embodiment of the first aspect, the polypropylene fiber with an irregular cross-section includes an "8" shaped cross-section comprising two first grooves recessed toward the interior of the fiber.

[0014] In one embodiment of the first aspect, the polypropylene fiber with an irregular cross-section includes a petal-shaped cross-section comprising three second grooves recessed toward the interior of the fiber.

[0015] In one embodiment of the first aspect, when measured according to the national standard GB / T 21655.1-2023, the moisture-wicking and quick-drying performance level of the unidirectional moisture-wicking fabric is Grade III.

[0016] In one embodiment of the first aspect, the unidirectional moisture-wicking fabric is a double-knitted fabric.

[0017] Compared with the prior art, the present invention has the following advantages: 1. The fabric of this utility model has a double-layer structure. The water-wicking layer on the side closer to the skin is a polyester layer and polypropylene water-wicking units set on the polyester layer in a jacquard structure, which are hydrophobic. The water-absorbing layer on the side away from the skin is a modified polyester layer or cotton fiber layer, which are hydrophilic. Therefore, sweat can be quickly transferred from the water-wicking layer to the water-absorbing layer and evaporate quickly. At the same time, the hydrophobic polyester layer and the polypropylene water-wicking units set on the polyester layer in a jacquard structure prevent the fabric from sticking to the body when sweating. In addition, the rapid evaporation of moisture from the modified polyester layer or cotton fiber layer takes away a large amount of heat, thus making the body feel cool and having good one-way moisture-wicking performance.

[0018] 2. The cross-section of the water-conducting layer fiber is an irregular cross-section with multiple grooves. The irregular cross-section of the fiber increases the grooves to generate a capillary effect, thereby achieving the effect of moisture absorption and conduction. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the layered structure of the fabric in this utility model.

[0020] Figure 2 This is a schematic diagram of the surface structure of the water-conducting layer in this utility model.

[0021] Figure 3 This is a schematic diagram of the first fiber cross-section structure of the water-conducting layer in this utility model.

[0022] Figure 4 This is a schematic diagram of the second fiber cross-section structure of the water-conducting layer in this utility model.

[0023] Reference numerals: 100, unidirectional moisture-wicking fabric; 10, absorbent layer; 20, water-wicking layer; 200, polyester layer; 201, polypropylene water-wicking unit; 202, first groove; 203, second groove. Detailed Implementation

[0024] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments. This embodiment is based on the technical solution of the present invention and provides detailed implementation methods and specific operating procedures; however, the scope of protection of the present invention is not limited to the following embodiments.

[0025] In one implementation, such as Figure 1 As shown, this application provides a one-way moisture-wicking fabric 100, mainly used for close-fitting clothing. It includes a layered absorbent layer 10 and a moisture-wicking layer 20. The moisture-wicking layer 20 is positioned close to the skin and includes a polyester layer 200 and polypropylene moisture-wicking units 201 arranged in a jacquard structure on the polyester layer. The absorbent layer 10 includes a modified polyester layer or a cotton fiber layer. The one-way moisture-wicking fabric 100 of this invention has a double-layer structure. The moisture-wicking layer 20 on the side closest to the skin is a polypropylene moisture-wicking unit, which is hydrophobic. The absorbent layer 10 on the side furthest from the skin is a modified polyester layer or a cotton fiber layer, which is hydrophilic. Therefore, sweat can quickly transfer from the moisture-wicking layer 20 to the absorbent layer 10 and evaporate rapidly. Simultaneously, the hydrophobic polypropylene moisture-wicking unit prevents the fabric from sticking to the body when sweating, and the rapid evaporation of moisture from the modified polyester or cotton fiber layer carries away a large amount of heat, thus making the body feel cool and exhibiting excellent one-way moisture-wicking performance.

[0026] In practical applications, when the human body sweats, the sweat is quickly absorbed by the water-wicking layer 20 and transferred to the absorbent layer 10. The polypropylene water-wicking unit, due to its hydrophobicity, effectively prevents sweat backflow, keeping the skin dry. Meanwhile, the modified polyester or cotton fiber layer, with its strong hydrophilicity, quickly absorbs and diffuses sweat, increasing the contact area with air and accelerating the evaporation process. This dual-layer structure design concept stems from a deep understanding of human physiological needs, aiming to provide a comfortable solution for sports, outdoor activities, and everyday wear. It not only effectively improves the wearer's comfort but also meets the functional requirements of the fabric in different scenarios, such as maintaining dryness for extended periods in high-temperature and high-humidity environments. For example, in the field of sports medicine, this one-way moisture-wicking performance is crucial for preventing friction damage and infection caused by skin moisture: during long-distance running, cycling, and other prolonged activities, if sweat cannot be wicked away in time, it can easily lead to skin maceration, resulting in problems such as eczema and abrasions. The fabric of this invention, through its efficient moisture-wicking system, can effectively reduce skin surface humidity, providing athletes with comprehensive protection. In addition, its cooling sensation can help athletes maintain a lower core body temperature in high-temperature environments, delay fatigue, and improve athletic performance.

[0027] The absorbent layer can be made of highly absorbent, cotton-like polyester, which has a moisture regain greater than 4% as measured according to the national standard GB / T 9995-1997. In a preferred embodiment, the highly absorbent, cotton-like polyester is a 50D / 24F-18 highly absorbent yarn produced by Huben New Material Technology (Shanghai) Co., Ltd., with a moisture regain of 4.2% as measured according to the national standard GB / T 9995-1997.

[0028] refer to Figure 2 In one embodiment, the water-wicking layer 20 may include a polyester layer 200 and polypropylene water-wicking units 201 discretely disposed on the polyester layer 200 in a jacquard structure. The polypropylene water-wicking units 201 are linearly arranged, with adjacent columns staggered to form gaps filled with polyester coils. The polypropylene water-wicking units 201 extend from the surface of the absorbent layer 10 to a certain height, forming a three-dimensional structure. This height is preferably 0.5-2 mm. This three-dimensional structure not only increases the surface area of ​​the water-wicking layer 20 but also forms numerous micro air channels. These channels effectively guide hot air outward while transmitting sweat. In human wear scenarios, when the skin surface temperature rises, the honeycomb structure of the water-wicking layer 20 can accelerate air circulation, remove excess heat, and create a cooling effect similar to air conditioning. Compared with traditional planar structures, the water-wicking layer 20 with a three-dimensional structure can reduce the skin surface temperature by 2-3°C under the same environmental conditions, significantly improving the cooling sensation when wearing it.

[0029] The inventors discovered that the ratio of the total area of ​​the polypropylene water-wicking units 201 to the area of ​​the void portion filled with polyester coils formed by the polypropylene water-wicking units 201 affects the overall water-wicking performance of the water-wicking layer 20. When the total area of ​​the polypropylene water-wicking units 201 is too small, moisture cannot be effectively transferred to the absorbent layer 10, increasing the likelihood of the absorbent layer 10 contacting the skin and reducing the user's wearing comfort. When the total area of ​​the polypropylene water-wicking units 201 is too large, the area of ​​the void portion filled with polyester coils is too small, and sweat easily gets clogged in the polypropylene water-wicking units 201, failing to be effectively transferred to the absorbent layer 10. Through repeated experiments, the inventors found that when the total area of ​​the polypropylene water-wicking units 201 accounts for 60-80% of the total area of ​​the water-wicking layer 20, better one-way moisture-wicking performance can be obtained. Preferably, when the total area of ​​the polypropylene water-wicking units accounts for 65-70% of the total area of ​​the water-wicking layer, the one-way moisture-wicking performance of the one-way moisture-wicking fabric is even better.

[0030] The inventors discovered that staggered arrangement of the polypropylene water-wicking units 201 extends the path of water vapor flow within the water-wicking layer 20, thereby accommodating more water vapor and providing more buffer space for sweat excretion. In one embodiment, an average of six polypropylene water-wicking units 201 are arranged around each polypropylene water-wicking unit 201. This configuration ensures that the polypropylene water-wicking units 201 quickly transfer water vapor to the absorbent layer 10, while temporarily storing excess water vapor in the gaps filled with polyester coils, keeping the skin dry.

[0031] refer to Figure 3 and Figure 4 The polypropylene water-conducting unit 201 may be made of polypropylene fibers with an irregular cross-section, the cross-section of which includes grooves recessed towards the interior of the fiber. (Reference) Figure 3 Polypropylene fibers with irregular cross-sections may include a figure-eight shaped cross-section comprising two first grooves 202 recessed toward the interior of the fiber. (Reference) Figure 4 The polypropylene fiber with an irregular cross-section includes a petal-shaped cross-section comprising three second grooves 203 recessed toward the interior of the fiber.

[0032] The irregular cross-section of the fiber increases the grooves, generating a capillary effect to achieve moisture absorption and wicking. The capillary effect is ubiquitous in nature. In fiber design, optimizing the number and shape of grooves is key to improving moisture-wicking performance. Research has found that an irregular cross-section with two or three grooves achieves the optimal balance between fiber strength and moisture-wicking efficiency. Too few grooves result in insufficient capillary effect and limited improvement in moisture-wicking performance; while too many grooves lead to decreased fiber strength, affecting fabric durability. This design achieves stable moisture-wicking performance by precisely controlling spinning process parameters to ensure uniform groove depth, width, and spacing for each fiber. At the microscopic level, the capillary network formed by these grooves rapidly absorbs and disperses sweat like tree roots, preventing localized sweat accumulation and ensuring a uniform humidity distribution in the moisture-wicking layer 20 during dynamic wear.

[0033] Specifically, polypropylene itself is hydrophobic. Due to the irregular structure of polypropylene (containing 2 or 3 grooves), long and narrow grooves or gaps are formed on the fiber surface or between fibers, which are equivalent to capillaries. Water vapor is transported in the channels and enters the absorbent layer.

[0034] Furthermore, in one embodiment, the surface of the absorbent layer 10 may be provided with a jacquard structure. A jacquard structure is a specific pattern or design formed on the fabric surface through a jacquard process. Its core principle is to use a jacquard machine (such as a rapier jacquard machine or an electronic jacquard machine) to control the rise and fall of the warp or weft yarns, causing the yarns at different positions to interweave and form a textured, three-dimensional pattern. The jacquard structure not only has a unique visual appeal but also increases the contact area between the fabric and air through its three-dimensional texture, improving water absorption and evaporation efficiency. In practical applications, the design of jacquard patterns can be customized according to the target user group and usage scenario. For example, in sportswear, streamlined or grid-like jacquard patterns can be used to enhance the fabric's breathability and moisture-wicking directionality; while in everyday clothing, decorative patterns such as flowers and geometric shapes can be designed to meet fashion demands.

[0035] Example 1 This embodiment provides a one-way moisture-wicking fabric, which is a double-knitted fabric. The absorbent layer is 1 mm thick, and the polyester layer 200 is 0.3 mm thick, both woven from 50D / 24F-18 high-absorbency yarn manufactured by Huben New Material Technology (Shanghai) Co., Ltd. The water-wicking layer 20 includes the polyester layer 200 and multiple non-connected polypropylene water-wicking units 201, each polypropylene water-wicking unit 201 having dimensions of 3 mm in length, width, and height. 1mm The polypropylene water-guiding unit 201 has a thickness of 0.5 mm, and its total area accounts for 60% of the total area of ​​the water-guiding layer 20. Six polypropylene water-guiding units 201 are arranged around each other. The distance between adjacent rows of polypropylene water-guiding units is 1 mm; the distance between adjacent columns of polypropylene water-guiding units is 1 mm. Both polyester and polypropylene are 50D / 24F, and the polypropylene is preferably 50D / 24F polyester FDY bright profiled filament (natural white).

[0036] The water-conducting layer 20 and the water-absorbing layer 10 are woven together using a knitting process.

[0037] The unidirectional moisture-wicking fabric of this embodiment was tested according to the national standard GB / T 21655.1-2023, and the results are shown in Table 1. During the test, the washing procedure was GB / T8629-2017, 4N, 5 consecutive washes, standard detergent 3, and air drying.

[0038] Table 1: Moisture-wicking and quick-drying properties of the unidirectional moisture-wicking fabric in Example 1 As shown in Table 1, the unidirectional moisture-wicking fabric of this embodiment meets the Class III standard specified in the national standard GB / T 21655.1-2023 and has excellent moisture absorption and quick-drying properties.

[0039] The preferred embodiments of this utility model have been described in detail above. It should be understood that those skilled in the art can make numerous modifications and variations based on the concept of this utility model without creative effort. Therefore, all technical solutions that can be obtained by those skilled in the art based on the concept of this utility model through logical analysis, reasoning, or limited experimentation on the basis of existing technology should be within the scope of protection defined by the claims.

Claims

1. A unidirectional moisture-wicking fabric, characterized in that, The one-way moisture-wicking fabric includes a water-absorbing layer and a water-wicking layer stacked together. The water-wicking layer is disposed close to the skin. The water-wicking layer includes a polyester layer and polypropylene water-wicking units disposed on the polyester layer in the form of a jacquard structure. The water-absorbing layer includes a modified polyester layer or a cotton fiber layer.

2. The unidirectional moisture-wicking fabric as described in claim 1, characterized in that, The absorbent layer is made of highly absorbent, cotton-like polyester, which has a moisture regain of more than 4% as measured by the national standard GB / T 9995-1997.

3. The unidirectional moisture-wicking fabric as described in claim 1, characterized in that, The water-conducting layer includes discrete polypropylene water-conducting units arranged linearly, with adjacent columns of polypropylene water-conducting units staggered to form a gap portion filled with polyester coils.

4. The unidirectional moisture-wicking fabric as described in claim 3, characterized in that, The total area of ​​the polypropylene water-conducting unit accounts for 60-80% of the total area of ​​the water-conducting layer.

5. The unidirectional moisture-wicking fabric as described in claim 4, characterized in that, The total area of ​​the polypropylene water-conducting unit accounts for 65-70% of the total area of ​​the water-conducting layer.

6. The unidirectional moisture-wicking fabric as described in any one of claims 3-5, characterized in that, The polypropylene water-conducting unit is made of polypropylene fibers with an irregular cross-section, the cross-section of which includes grooves recessed toward the interior of the fiber.

7. The unidirectional moisture-wicking fabric as described in claim 6, characterized in that, The polypropylene fiber with an irregular cross-section includes an "8" shaped cross-section, which includes two first grooves that are recessed toward the interior of the fiber.

8. The unidirectional moisture-wicking fabric as described in claim 6, characterized in that, The polypropylene fiber with an irregular cross-section includes a petal-shaped cross-section comprising three second grooves recessed toward the interior of the fiber.

9. The unidirectional moisture-wicking fabric as described in any one of claims 1-5, characterized in that, When tested according to the national standard GB / T21655.1-2023, the moisture-wicking and quick-drying performance of the unidirectional moisture-wicking fabric is grade III.

10. The unidirectional moisture-wicking fabric as described in any one of claims 1-5, characterized in that, The unidirectional moisture-wicking fabric is a double-knitted fabric.

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