CN110495660A - A fabric that maintains wearing comfort and elegant appearance during exercise - Google Patents

Abstract

The invention discloses a design and preparation method of a functional fabric suitable for daily sports and life wear. By designing the fabric as a fabric with different functions on the front and back sides, and the fabric can logically have a three-layer structure according to the functional distinction, from the bottom of the cloth to the cloth surface, (1) water-repellent and water-conducting layer; (2) hydrophilic storage layer Water layer and (3) visual interference layer. The middle layer (2) can be further decomposed into a hydrophilic water-conducting water storage layer and (2.2) a hydrophilic water-conducting quick-drying layer (optional), so that the fabric can be worn during wearing, especially when sweating. , the fabric can not only drain sweat from the bottom of the cloth to keep the skin dry and comfortable in contact with the cloth, but also reduce the possibility of sweat forming obvious water marks or sweat marks on the cloth, thus maintaining the elegant appearance of the wearer , To a certain extent, it also improves the ability of clothing to prevent rain. The design principles of the present invention are applicable to knitted, woven and non-woven structures.

Description

A fabric that maintains wearing comfort and elegant appearance during exercise

technical field

The invention relates to the field of design and preparation of textile functional fabrics, in particular to a fabric that can not only discharge sweat from the bottom of the cloth to keep the microenvironment of the skin and the bottom of the cloth dry and comfortable during wearing, especially when sweating. The heat and humidity comfort feeling also reduces the possibility of sweat forming obvious water marks or sweat marks on the cloth surface, thereby maintaining the elegant appearance and visual comfort of the wearer.

Background technique

With the development of the economy, modern consumers pay more and more attention to the improvement of personal lifestyle and the improvement of the quality of life. Not only to pursue their own physical and psychological health, but also to seek personal development and social identity. In this process, strive to achieve harmony and co-prosperity among individuals, between people, between people and nature. Therefore consumers pay more and more attention to the comfort of wearing and the clothing etiquette in the process of wearing clothes in the process of using clothes. Traditional clothing design usually focuses on the decoration or beauty of clothing to meet the needs of users to meet the etiquette and rules of a certain community; modern functional clothing design focuses on the protection (function) of individual users, while Weaker than considerations for aesthetics, especially etiquette.

For example, suppose a person sweats after exercising in the morning or on the way to work, but has no time to take a shower and change clothes when returning to work, and then needs to participate in some business activities. At this time, if the clothing fabric is ordinary cotton or moisture-absorbing and quick-drying or moisture-absorbing and sweat-wicking fabrics, sweat marks or watermarks usually appear on the front of the fabric after sweating, which affects the appearance of the garment. Suitable for formal business activities, for fear of losing basic etiquette. Therefore, in modern life, people need a functional fabric clothing that can meet different sports conditions and adapt to multiple scenes. It is hoped that there is a kind of fabric that can drain sweat away from the bottom surface of the fabric when sweating during sports, so as to maintain the comfort of wearing, and at the same time, it will not form watermarks on the outer surface of the fabric to affect the appearance.

By searching the patent library, many existing technologies have carried out extensive research on the moisture absorption and quick-drying or unidirectional moisture-wicking function of fabrics. For example CN1985036A "Woven Fabric with Moisture Management Properties" reports a woven fabric consisting of a generally uniformly woven structure of hydrophobic and hydrophilic materials with internal and external exposure of hydrophobic and hydrophilic materials surface. Thus, the one-way transmission of sweat from the bottom of the cloth to the cloth surface is realized. Based on the basic principle that the difference in fabric surface energy leads to the one-way flow of liquid water, many new patent reports have emerged. CN207044828U "one-way moisture-guiding fabric" is a local water-repellent yarn formed by interweaving raw cotton yarn and hydrophilic yarn, and the raw cotton yarn whose hydrophilic yarn count of surface layer gauze is greater than that of inner layer gauze. Thus, one-way moisture transfer is realized without any chemical treatment process. Another example is CN206033999U "one-way moisture-absorbing and heating knitted fabric" which makes the fabric have the function of one-way moisture-guiding through the combination of different yarns, and also realizes the function of moisture absorption and heating. These existing technologies have better solved the problem of moisture drainage of sweat on the surface of the skin and improved the heat and humidity comfort during wearing, but there is also the fact that the outer surface of this type of functional fabric is more expensive than fabrics without this function. Sweat arrives and is more prone to water marks. Therefore, in order to avoid embarrassing sweat marks in clothing design, people sometimes turn the single guide fabric from the bottom to the surface, and apply it in reverse. So that the sweat is not discharged, try to lock it inside. Although such a design method alleviates the watermark problem of the appearance to a certain extent, the comfort of the wearer is greatly reduced because the sweat cannot be discharged. At the same time, due to the different degrees of see-through of the fabric, the watermark on the bottom of the light and thin fabric is often on the surface. The cloth surface can still be seen.

In recent years, the research on non-perspiration (printing) functional fabrics has attracted the attention of the industry. Patent reports with relevant keywords can already be retrieved. For example, CN201610612603.6 "A fabric anti-sweat stain finishing process" uses a hydrophilic non-ionic softener, and performs moisture absorption and perspiration softening on the fabric, so that sweat can be absorbed and volatilized instantly, with good air permeability and comfortable wearing; The compound coating additive can be used to form a film coating with many breathable micro pores on the surface of the knitted fabric, and each micro pore is smaller than sweat and larger than the sweat molecules of the human body. Form disperses, so that sweat stains leave no trace on the surface of the fabric.

CN103161045A "A Method for Sweat-proof Finishing of Moisture-absorbing and Perspiration-wicking Knitted Fabrics" reports a process flow: knitted fabric softening processing → size adjustment → sweat-proof processing on the front of knitted fabrics → sweat-proof inspection → drying. Moisture absorption and perspiration softening treatment is performed on the knitted fabric, so that the sweat can be absorbed and volatilized instantly; and then a film coating with many breathable micro pores is formed on the surface of the knitted fabric by means of pigment printing, and each micro pore is larger than sweat Smaller than the sweat molecules of the human body, it emits the sweat in a gaseous state, so that the sweat stains do not leave traces on the surface of the clothing, therefore, it has the effect of preventing sweat marks. CN107447531A "Preparation process of a sweat-proof T-shirt" relates to a preparation process of a sweat-proof T-shirt, comprising the following steps: (1) water-absorbing and quick-drying treatment of the T-shirt; (2) preparing a waterproof coating, which is It consists of the following components by weight: C6 waterproofing agent TG-5521 50-60 parts, silicone waterproofing agent 36-44 parts and isocyanate 4-6 parts; (3) T-shirt front anti-sweat stain processing; (4) T-shirt T-shirt post-processing. The preparation process of the anti-sweat T-shirt is preferably a compound waterproof coating. Using a coating machine to coat the surface of the T-shirt can form a film coating with a lot of breathable micro-pores on the surface of the T-shirt, so that the sweat is released in a gaseous state. The sweat stains will not leave traces on the surface of the T-shirt. On the basis of maintaining the original elasticity of the T-shirt, the T-shirt can achieve the anti-sweat effect very evenly, and there is no see-through.

Based on the above-mentioned patent retrieval analysis, the basic principle of finishing anti-perspiration stains is to perform moisture absorption and quick-drying finishing on the fabric, and then further coat the outer surface of the fabric. The liquid absorbed by the fabric passes through the membrane in gaseous form by evaporation. But there is such a situation: no matter how fast the fabric evaporates and dries quickly, the fabric will have a process of wetting first, then evaporating, and finally reaching dryness. In this process, because the fabric contains liquid water, when our line of sight reaches the surface of the fabric containing water, due to the refraction of light by the water in the fabric, the reflection characteristics are different from those of the fabric in an anhydrous state, which causes the visual effect of water marks ; At the same time, if the liquid water is technically stopped at the bottom of the cloth, it will also cause a decline in the user's wearing comfort experience.

Description of drawings

Figure 1 depicts the schematic diagram of the design of the non-sweat fabric

Figure 2 describes the retransmission characteristics of light reaching the surface of the fabric

Figure 3 depicts GB1 and GB2 laying diagrams

Figure 4 depicts GB1 and GB2 laying diagrams

Figure 5 describes the GB5 laying diagram

Figure 6 shows the process flow of finishing after typical sweat-free fabrics

Contents of the invention

In view of the above-mentioned situation, the moisture absorption and quick-drying fabric theoretically has a wetting process on both the surface and the bottom of the fabric. In a certain period of time, due to the presence of liquid water in the fabric, especially on the outer surface of the fabric, the light on the fabric The transfer properties of the neutral and/or surface are altered. Because the optical properties of water-containing fabrics such as reflection, transmission, scattering or absorption are significantly different from those of the same fabric without water, when the line of sight reaches the surface of the fabric and returns to our eyes through reflection, scattering and other methods on the surface of the fabric, it is We will find the difference in the visual effect of the non-water part and then form the perception of water traces in our brains. The principle of light reaching the surface of the fabric and being seen by our eyes is shown in Figure 2.

Therefore, based on the above-mentioned understanding of the formation mechanism of sweat marks (watermarks) in fabrics, the inventor proposes a new concept and implementation process to relieve the confusion of sweat marks in the process of wearing the user while improving the wear of the user. Comfortable experience. The basic principle of fabric design of the present invention is to allow perspiration to be transferred to the middle layer of fabric as much as possible from the bottom surface of fabric (near the wearer's skin surface); Storage and evaporation are carried out in this middle layer; Stop middle layer as far as possible outside fabric The penetration of the liquid to the outer surface, so that there is an area of the outer surface that cannot be wetted within a certain thickness range. At the same time, since the visual effect depends on the absorption and reflection characteristics of the light wave of the fabric of the ambient light source, the chance of light reflection and scattering is improved through the design of the fabric structure; or a visually non-transparent outer surface is formed by means of printing to weaken the mirror surface of the outer surface The effect of reflection and perspective, thus solving the problem of water/perspiration stains caused by water on the surface of the fabric.

In order to keep the skin dry and comfortable during wearing, especially when sweating, and reduce the possibility of sweat forming water marks or sweat marks on the outer surface of the fabric, the present invention discloses a fabric with specific front and back sides. The design and preparation method of the functional fabric satisfies the requirements of the wearer for a comfortable and dry wearing experience while maintaining the elegant appearance of the wearer. To some extent, it can also improve the user's ability to resist the external environment. The outer surface of the fabric is not easy to be wet or stained, and is easy to clean.

The present invention will be described in detail. As shown in Figure 1, the fabric has at least three layers of structure logically according to the function of the thickness direction, from the bottom of the cloth to the cloth surface, (1) water-repellent water-conducting layer; (2) hydrophilic water storage layer and (3) Visual distraction layer. The middle layer (2) can be further decomposed into a hydrophilic water-conducting water storage layer and (2.2) a hydrophilic water-conducting quick-drying layer (optional);

Layer (1) is a water-repellent water-conducting layer: its main function is to quickly absorb liquid away from the surface of the fabric when the fabric is in contact with sweat, so that the contact between the skin and the fabric remains dry. The well-known moisture absorption and quick-drying technology in the industry, and the one-way moisture-wicking technology are all helpful for the realization of this function. In the present invention, based on the need to improve consumer comfort experience, the present invention preferably uses hydrophilic yarns and/or hydrophobic yarns to interweave/finish the water-repellent water-conducting layer, and the coverage of hydrophobic yarns on the cloth bottom The area is greater than 50%, preferably about 65-85%, retaining a certain proportion of hydrophilic yarns to form water-guiding channels; another preferred technical solution is to choose 100% hydrophobic yarns for the water-repellent water-guiding layer to form a large mesh structure, and the hollowed out area is 10% Between -80%, preferably 30%. Water can be absorbed through direct contact with the hydrophilic water-conducting/water-storing layer through the pores of the mesh. At the same time, the hydrophobic low moisture regain yarn can keep the contact between the skin and the fabric dry.

In view of the requirements of yarns with different surface energies (philicity/hydrophobicity) mentioned in the aforementioned design, in the present invention, the hydrophobic yarns can be obtained by finishing the hydrophilic yarns through hydrophobic functions, or directly select the yarns with hydrophobic properties. Yarns such as polypropylene. The hydrophilic yarn can be cotton yarn, polyester or nylon yarn with hygroscopic and quick-drying properties, or cellulose synthetic yarn.

Layer (2) is a hydrophilic water storage layer: the main function is to keep the liquid water transferred from layer (1) here, and evaporate it quickly and efficiently to take away heat, and keep the air in a sweat-free state. It can still provide a certain warmth retention capacity under the condition of lighter fabric unit weight. The hydrophilic water-conducting/water-storing layer is made of 100% hydrophilic yarn, and the fabric structure can be a plain weave structure or a 3-dimensional space structure. The 3-dimensional space structure is preferred to increase the thickness of the fabric without increasing the weight of the plain weave fabric, the effective evaporation area and the ventilation effect inside the fabric, so as to achieve the effect of quick drying and rapid heat dissipation. Therefore, this logic function layer is specially named in the present invention It is a hydrophilic water-conducting quick-drying layer (optional). For fabric designs with a longer wearing time, a certain proportion of deodorizing and/or antibacterial functions can be appropriately interwoven in the yarns used in layer (2) to achieve the peculiar smell generated during long-term wearing; deodorizing and/or antibacterial functions Or the ratio of antibacterial functional yarn to hydrophilic thread can be 1:1 to 1:10, preferably 1:5.

In order to further improve the quick-drying effect of the fabric, the fibers of the layer (2) are preferably synthetic fibers with special-shaped cross-sections, and the capillary effect is used to achieve rapid diffusion and evaporation of liquid water.

Layer (3) is a visual disturbance layer: its main function is to prevent the liquid water in layer (2) from reaching layer (3) and changing the optical properties of layer (3) while maintaining good air permeability of the fabric. At the same time, the liquid water in the layer (2) can leave the fabric smoothly due to the water vapor produced by evaporation, and the water trace in the layer (2) can be seen by using the surface of the layer (3) fabric to weaken the visual perspective.

Layer (3) consists of 100% hydrophobic yarn. The outer surface of the visual interference layer can be plain, or a three-dimensional space structure to reduce the mirror effect and further interfere with the reflection of visual light. It is well known in the industry that fabrics woven from hydrophobic yarns have hydrophobic properties, and their water pressure resistance is related to the tightness of the fabric structure. The outer surface of the visual interference layer can be further processed by post-processing methods such as printing, sanding, and fleece to reduce the specular reflection of light on the fabric surface, so as to reduce or interfere with sweat marks. The preferred fabric is a non-see-through fabric, that is, the lower the transparency of the fabric, the better.

According to the principle and technical requirements of the above-mentioned innovative design, the realization method of this patent can be to weave and organize the above-mentioned three functional logic layers independently according to the design requirements, and then realize this layer of fabric by laminating; it is also possible to choose the corresponding The functional yarn is realized at one time through the method of weaving.

Invention Example 1

In this example, hydrophobic yarns and ordinary yarns/hydrophilic yarns are used to weave on double-needle bed equipment to achieve a woven fabric with a mesh structure on one side and a plain fabric structure on the other side, and a middle interlayer. The final effect is that the outermost layer is a hydrophobic fabric, the middle interlayer is a hydrophilic yarn interlayer, and the innermost layer is a mesh fabric woven with hydrophobic yarns. The innermost layer of hydrophobic mesh fabric and the middle layer of hydrophilic form a one-way water guide effect.

Hydrophobic yarn: PET 75D/72f SD DTY, supplier: Nan Ya Processing Yarn Co., Ltd.

Hydrophilic yarn: PET 50D/72f SD DTY single-pack PU 70D, supplier: Shenghong polyester yarn + INVISTA spandex, covered yarn within the company

GB1 and GB2 use hydrophobic yarns, and weave reverse warp and satin structure, revealing a mesh effect on the fabric (see Figure 3 for the number of lap yarns); GB3 uses hydrophilic core-spun yarns to connect the front and rear fabrics to form a sandwich ( See Figure 4 for lapping numbers); GB 4 and GB 5 use hydrophobic yarns to weave the reverse warp-flat structure in a full-through manner, revealing the effect of plain cloth on the fabric.

1. Yarn warping used in warp knitting:

Warping machine type: Karl Mayer DS 21/30NC-2, passive yarn feeding.

Warping temperature: 25℃ Warping humidity: 65%

The workshop sets process parameters under the above temperature and humidity conditions.

2. Weaving

Weaving machine model: Karl Mayer RD7/2-12EL.

Machine number range: E24

Fabric yarn and threading method:

GB2GB3: Hydrophobic yarn: PET 75D/72f SD DTY Threading method: 5 threads and 1 empty;

GB4: PET 50D/72f SD DTY single bag PU 70D threading method: full threading;

GB5, GB6: Hydrophobic yarn: PET 75D/72f SD DTY Threading method: full threading.

Laying diagram: see attached drawings 3, 4, 5

Width: 140 cm

Gram weight: 330 grams/square meter

3. Dyeing and finishing

Washing→scheduling→overflow dyeing→dehydration→finishing

Invention Example 2

In order to realize the function of the present invention quickly, the method of rearranging is also successfully applied in this example. The specific implementation steps are shown in Figure 6 and described as follows:

Fig. 6 Process flow of finishing of typical sweat-free fabrics

1. Choose Dongguan Chaoying Textile Co., Ltd.

1. TNJ54159FX2 (45% polybutylene terephthalate RB, 55% polyester SD; 85g/sq.m) is the gray fabric 1, and its fabric surface will be the fabric surface after composite lamination;

2. EJ8319FX2 (82% nylon SD, 18% spandex, unit weight 85g/sq.m) is the gray fabric 2, and its fabric base will be the fabric base after composite lamination.

2. According to the flow chart in Figure 6, gray cloth 1 and gray cloth 2 both show good hydrophilicity after testing. According to the AATCC 79 test standard, when water is dropped on the surface of the cloth, the time for the specular reflection of the water drop to disappear on the cloth surface is less than 2 seconds, showing good hydrophilicity. therefore,

1. In this example, fabric fluorine-free waterproof finishing is carried out on gray cloth 1. There have been many previous reports on the fluorine-free waterproof finishing process and technology. In this example, Rudolf BIONIC FINISH fluorine-free water-repellent finishing agent RUCO-DRYECO was selected. The additive does not contain APEO polymer, and adopts the finishing method of dipping-drying-baking.

2. In this example, because the gray cloth 2 also shows better hydrophilicity, in order to achieve the idea of the present invention: when the bottom surface of the fabric is in contact with human skin, it should also keep a dry feeling as much as possible during the sweating process, and it is necessary to transfer the sweat into the body. The middle layer of the fabric (hydrophilic water storage layer). It is also necessary to increase the surface energy difference between the bottom of the fabric and the middle layer of the fabric. Water is automatically transported from the bottom of the cloth to the middle or surface of the cloth by the surface energy difference combined with the capillary effect. Therefore, the cloth bottom of the gray cloth 2 is finished by a water-repellent single-sided printing-drying-baking method. The German Rudolph BIONIC FINISH fluorine-free water-repellent finishing agent RUCO-DRYECO is still selected. There have been many reports on the unidirectional wet-guided finishing process of fabrics, and will not be repeated here. The test method of treated fabric is AATCC-195 standard.

3. The cloth surface of gray cloth 1 is the cloth surface of the new composite laminated cloth, and the cloth bottom of gray cloth 2 is the cloth bottom of the composite laminated cloth for bonding. The process of lamination bonding is already a mature technology in the industry and is adopted here.

4. The fabric obtained by this process forms three layers with different characteristics in its thickness direction, from the bottom of the fabric to the surface of the fabric:

1. Hydrophobic and water-conducting layer: this layer has undergone one-way moisture-conducting finishing, and when sweat arrives, it will be transferred to the cloth surface of gray cloth 2, which is the middle of the new composite cloth;

2. Hydrophilic water storage layer: the cloth surface of the gray cloth 2 becomes a hydrophilic water storage layer here. When liquid water reaches here, it is further diffused and evaporated due to its hydrophilic properties;

3. Visual interference layer: the gray cloth 1 has undergone water-repellent finishing, which prevents liquid water from continuing to pass to the outer surface of the gray cloth 1, and the gray cloth 1 is not easily wetted. Therefore, the watermark phenomenon of the fabric viewed from the direction of the cloth surface is significantly weakened.

4. In order to further reduce the watermark on the appearance of the fabric, the outer surface of the composite fabric obtained in Example 1 can be further raised and finished by increasing the fluff on the surface to further reduce the transparency of the cloth surface and reduce the traces of the watermark in the hydrophilic water storage layer .

5. In order to further reduce the watermark on the appearance of the fabric, the composite fabric obtained in Example 1 can be further printed on the outer surface to achieve visual interference through patterns and colors;

6. In order to further reduce the watermark on the appearance of the fabric, the fabric described in Example 1 is further compounded with a waterproof and breathable membrane between the gray cloth 1 and the gray cloth 2 during lamination and bonding, so as to better prevent the transfer of liquid water to the outside and reduce the water mark. The visual effect of the watermark.

Invention example three

On the basis of the invention example 2, the gray cloth 1 in the example 2 was continued to be selected; the gray cloth 2 was selected from a laboratory-made cotton woven unidirectional moisture-wicking fabric. For the detailed manufacturing process, please refer to the inventor's authorized patent "Woven Fabric with Moisture Management Performance" (CN200580001677.6).

Therefore, we directly obtained the hydrophobic water-conducting layer and the hydrophilic water storage layer on the gray cloth 2;

Gray cloth 1 follows the 2 (a) step in the example two to process;

And repeat steps 3 and 4 of example two to obtain the final product.

Invention example four

On the basis of the invention example two, continue to select the gray cloth 1 in the example two; the gray cloth 2 selects the all-cotton unidirectional moisture-conducting non-woven fabric made by the laboratory. For the detailed production process, please refer to the inventor's authorized patent "non-woven fabric and its manufacturing method" (CN201010251772.4).

Therefore, we directly obtained the hydrophobic water-conducting layer and the hydrophilic water storage layer on the gray cloth 2;

Gray cloth 1 follows the 2 (a) step in the example two to process;

And repeat steps 3 and 4 of example two to obtain the final product.

Claims (11)

1. A fabric with specific front and back sides with different functions, so that the fabric can not only discharge sweat from the bottom surface of the cloth during wearing, so as to keep the skin and the bottom of the cloth in contact with the micro-environment dry and wear hot and humid comfort, but at the same time It also reduces the possibility of sweat forming obvious water marks or sweat marks on the cloth surface, thereby maintaining the elegant appearance and visual comfort of the wearer. 2. According to claim 1, the fabric has at least a three-layer structure logically according to its function, from the bottom of the cloth to the cloth surface, (1) a water-repellent water-conducting layer; (2) a hydrophilic water storage layer and (3) a visual interference layer . The layer (2) can be further decomposed into a hydrophilic water-conducting water storage layer and (2.2) a hydrophilic water-conducting quick-drying layer (optional). 3. According to claims 1 and 2, the main function of the layer (1) is to quickly draw liquid away from the surface of the fabric when the fabric comes into contact with sweat, thereby keeping the skin in contact with the fabric dry. Its realization method can be to select hydrophilic yarn and/or hydrophobic yarn to interweave/after-finish to form the water-repellent and water-conducting layer, and the coverage area of the hydrophobic yarn on the bottom of the cloth is greater than 50%, preferably about 65-85%, so that A certain amount of hydrophilic yarn is retained to form a water-conducting channel. 4. According to claim 3, the water-repellent and water-conducting layer can also choose 100% hydrophobic yarn to form a large mesh structure, and the hollow area is between 10% and 85%, preferably 30%. Water can be absorbed through direct contact with the hydrophilic water-conducting/water-storing layer through the pores of the mesh. At the same time, the hydrophobic low moisture regain yarn can keep the contact between the skin and the fabric dry. 5. According to claims 3 and 4, the hydrophobic yarn can be obtained by finishing the hydrophobic function of the hydrophilic yarn, or directly choose the hydrophobic yarn, preferably polypropylene fiber. 6. According to claims 1 and 2, the hydrophilic water-conducting/water-storage layer is made of 100% hydrophilic yarn, and the fabric structure can be a plain weave structure or a 3-dimensional space structure. The 3-dimensional space structure is preferred to increase the thickness of the fabric without increasing the weight of the plain weave fabric, the effective evaporation area and the ventilation effect inside the fabric, so as to achieve the effect of quick drying and rapid heat dissipation. Synthetic fibers with profiled fiber cross-sections are preferred, utilizing capillary effects to achieve rapid diffusion and evaporation of liquid water. 7. According to claim 6, the hydrophilic water-conducting/water-storing layer yarn can be compounded to select odor-removing and/or antibacterial functions to reduce the odor generated during long-term wearing. 8. According to claims 1 and 2, the visual interference layer is composed of 100% hydrophobic yarn, and its function is: (1) prevent the unevaporated liquid sweat from wetting the layer of fabric from the inside to the outside to form sweat marks, (2) also Under certain conditions, the external rainwater can be prevented from wetting and invading the interior of the fabric; (3) the visibility of sweat marks can be further disturbed by modifying the outer surface. 9. According to claim 8, the fabric structure on the outer surface of the visual interference layer can be plain weave, preferably a three-dimensional space structure to further disturb the reflection of light, and the lower the transparency of the fabric, the better. 10. According to claim 8, the outer surface of the visual interference layer can further achieve the establishment of a three-dimensional space structure through post-processing means such as printing, sanding, and scratching, and reduce the specular reflection ability of the fabric surface to reduce or interfere with the reflection of sweat marks . 11. According to claims 1 and 2, the fabric can be realized by laminating qualified multi-layer fabrics, or by weaving functional yarns once or step by step. The design principle of the present invention is applicable to knitted, woven and non-woven structures.