Fabric supporting weakened display of sweat print

Abstract

Disclosed in the present invention is a fabric supporting weakened display of sweat print, comprising at least one type of yarns. A fabric body comprises a clothing surface visual interference layer, a moisture diffusion layer, and a skin-contact surface visual interference layer. The clothing surface visual interference layer is a discontinuous 3D structure, and is provided with first protrusions, the height of each first protrusion is H1, the width thereof is W1, and a spacing width between two adjacent first protrusions is W2, wherein 0.5 ≤ W2 / H1 ≤ 1.5 and 0.5 ≤ W1 / W2 ≤ 3.5. The moisture diffusion layer is a continuous structure, and the height of the moisture diffusion layer is H2. The skin-contact surface visual interference layer is a discontinuous 3D structure, and is provided with second protrusions, the height of each second protrusion is H3, the width thereof is W3, and a spacing width between two adjacent second protrusions is W4. According to the fabric of the present invention, the comfort after sweating can be improved, the adhesion to the skin is reduced, and a visual effect of weakened sweat print is generated.

Description

A fabric that helps reduce the appearance of sweat marks Technical Field

[0001] The invention belongs to the technical field of textile fabrics, and in particular relates to a fabric that utilizes visual interference to reduce the visibility of sweat marks. Background Art

[0002] When people exercise, they prefer to wear more breathable T-shirts. However, people produce a lot of sweat when running, and existing T-shirts cannot evaporate the sweat quickly. As a result, sweat accumulates, causing the clothes to become wet and sticky, and then stick to the wearer's skin, causing discomfort. At the same time, when the human body sweats profusely, the sweat often seeps out of the clothes, leaving many circles of sweat marks on the surface of the clothes, which not only affects the appearance of the clothes, but also easily causes the clothes to turn yellow. Existing sweat treatment solutions for fabrics corresponding to heavy sweating are mainly as follows:

[0003] Chinese patent document CN208484320U discloses a "moisture-wicking printed knitted fabric," which includes a regular fabric layer with a reinforcement layer adhered to the regular fabric layer. Both the fabric layer and the reinforcement layer are provided with pores, with several groups of pores. A wear-resistant layer is provided at one end of the pores, and a water-absorbent fabric layer is laid at the other end of the pores. The wear-resistant layer is inlaid with anti-static fabric. By combining the water-absorbent fabric layer with the regular fabric layer, this utility model can quickly absorb and expel human sweat while increasing breathability for greater comfort. The bamboo charcoal fabric layer and the silver ion fabric layer can eliminate odors and oil smoke generated by the human body, while also providing sterilization and disinfection. The combination of the wear-resistant layer and the reinforcement layer makes the knitted fabric more wear-resistant and durable. The wear-resistant layer is sprayed with a wear-resistant coating, providing excellent wear resistance. The reinforcement layer is made of nylon thread, which has better tensile strength.

[0004] Chinese patent document CN107354715A discloses a "long-lasting antibacterial, sweat-resistant, and iron-free finishing liquid and finishing process for cotton fabrics." The finishing liquid is formulated with chitosan, a Chinese herbal extract, nano-zinc oxide, nano-silver powder, and other additives. Chitosan is naturally non-toxic, biodegradable, biocompatible, and has excellent antibacterial properties. Its surface contains a large number of active groups, which contributes to shrinkage and wrinkle resistance. A gum arabic film is coated with honeysuckle extract, Houttuynia cordata extract, and pomegranate peel extract, along with nano-zinc oxide and nano-silver powder antibacterial agents, achieving sustained-release and long-lasting antibacterial effects. The chitosan compound imparts excellent wrinkle resistance, iron-free properties, and antibacterial properties to cotton fabrics, improving their feel, strength, and washability. The finished fabric exhibits excellent antibacterial, durability, wrinkle resistance, and iron-free properties, instantly absorbs and evaporates sweat marks, and offers excellent breathability for comfortable wear. Oscillating drying eliminates the impact of pressure-generating roller equipment on fabric breathability.

[0005] Chinese patent document CN103161045B discloses "a method for anti-sweat mark finishing of moisture-absorbing and perspiration-releasing knitted fabrics", which is characterized by comprising the following process flow: knitted fabric softening processing → sizing → knitted fabric front anti-sweat mark processing → anti-sweat mark inspection → baking. By subjecting the knitted fabric to a moisture-absorbing and perspiration-releasing softening treatment, sweat can be instantly absorbed and volatilized; then, by means of paint printing, a thin film coating with many breathable micropores is formed on the surface of the knitted fabric, and each micropore is smaller than sweat and larger than a sweat molecule in the human body. By dissipating sweat in a gaseous form, sweat marks are left on the surface of the clothing without leaving any trace, thus achieving an anti-sweat mark effect. The back of the knitted fabric that has undergone the anti-sweat mark treatment absorbs moisture and dries quickly, and the surface is sweat-resistant. At the same time, it has good air permeability and is comfortable to wear, which is conducive to promotion and application.

[0006] Chinese patent document CN1414081A, "A laundry detergent capable of removing yellow sweat stains from light-colored clothing," states that its active ingredients are: 10-20% sodium lauryl sulfate, 10-15% fatty alcohol polyoxyethylene ether (n=9), 10-20% 4A zeolite, 10-30% NaHSO₄, and 10-20% NaNO₂ (all percentages by weight). This laundry detergent possesses the same cleaning power as ordinary laundry detergents while also effectively removing yellow sweat stains from light-colored clothing. It is mild, non-irritating to the skin, and gentle on clothing. Furthermore, since it does not contain sodium tripolyphosphate, which can negatively impact the ecological environment, it is environmentally friendly.

[0007] The above existing sweat treatment measures for fabrics corresponding to excessive sweating by human body are achieved through different technical means, which can be summarized as follows: 1. Adopting laminated fabrics to quickly absorb and discharge human sweat; 2. Adding reagents and utilizing post-finishing processes to prevent sweat marks from leaving traces on the surface of clothing; 3. Using specially formulated laundry detergent to remove sweat marks from clothes. These existing technologies generally only quickly discharge sweat and cannot prevent sweat marks. Although the use of post-finishing processes can help prevent sweat marks. However, such methods generally have the problem that the washing fastness of the additives is not high. Usually, the function will decrease or even disappear after a certain number of washes. At the same time, the material properties and organizational structure of the treated fabric will also be affected. The cleaning measures of specially formulated laundry detergent can only remove sweat marks at a later stage and have no effect on their formation.

[0008] Therefore, the existing technologies cannot fundamentally solve the problem of sweat marks on fabrics. Therefore, the applicant has developed a fabric that helps to reduce the display of sweat marks after long-term production practice and scientific research to fill the gap in the existing technology. Technical issues

[0009] The object of the present invention is to provide a fabric that helps to reduce the display of sweat marks, which can improve the comfort after sweating, reduce the adhesion to the skin and produce a visual effect of reduced sweat marks. Technical Solutions

[0010] To achieve the above-mentioned object, the present invention provides a fabric that helps to reduce the appearance of sweat marks, comprising a fabric body, the fabric body comprising at least one yarn (Y1), wherein: the fabric body comprises a visual interference layer (L1) on the clothing surface, a moisture diffusion layer (L2), and a visual interference layer (L3) on the skin-contacting surface;

[0011] The visual interference layer (L1) on the garment surface is a non-continuous 3D structure in the warp or weft direction and is arranged at intervals of first basic units, wherein the first basic units include a first protrusion, a height H1 of the first protrusion, a width W1 of the first protrusion, and a width W2 of an interval between two adjacent first protrusions, wherein 0.5≤W2 / H1≤1.5 and 0.5≤W1 / W2≤3.5;

[0012] The moisture diffusion layer (L2) is a continuous structure, and the height of the moisture diffusion layer (L2) is H2;

[0013] The skin-contact visual interference layer (L3) is a non-continuous 3D structure in the warp or weft direction and is arranged at intervals of second basic units, wherein the second basic unit includes a second protrusion, a height H3 of the second protrusion, a width W3 of the second protrusion, and a spacing width W4 between two adjacent second protrusions.

[0014] Preferably, the present invention helps to reduce the sweat mark of the fabric, and H1 ≥ 0.05 mm, H3 ≥ 0.05 mm.

[0015] Preferably, in the fabric that helps reduce the appearance of sweat marks of the present invention, the yarn (Y1) is a non-transparent yarn and the moisture regain of the yarn (Y1) is less than 5%; or the yarn (Y1) is a fiber with a water-repellent structure.

[0016] Preferably, the fabric body in the fabric that helps to reduce the display of sweat marks of the present invention is one of single-sided basic structural fabric, single-sided jacquard structural fabric, double-sided basic structural fabric, double-sided jacquard structural fabric or spacer fabric.

[0017] Preferably, in the fabric that helps to reduce the display of sweat marks of the present invention, the fabric body is a single-sided basic structural fabric or a single-sided jacquard structural fabric, and the surface contact angle of the yarn in the skin-facing visual interference layer (L3) is less than 70°; the fabric body is a double-sided basic structural fabric or a double-sided jacquard structural fabric, the surface contact angle of the yarn in the clothing surface visual interference layer (L1) is less than 160°, and the surface contact angle of the yarn in the skin-facing visual interference layer (L3) is less than 70°.

[0018] Preferably, the moisture diffusion layer (L2) in the fabric that helps to reduce the display of sweat marks of the present invention is a hydrophilic fiber, the fiber surface contact angle of the hydrophilic fiber is ≤70°, and the preferred contact angle of the hydrophilic fiber is ≤45°.

[0019] Preferably, the present invention helps to reduce the sweat mark showing W1=W2 in the fabric.

[0020] Preferably, the yarn (Y1) in the fabric that helps to reduce the appearance of sweat marks of the present invention is a non-transparent synthetic fiber yarn with a sheath-core structure or a special-shaped cross-section structure.

[0021] Preferably, the fabric body of the fabric that helps to reduce the display of sweat marks of the present invention also includes yarn (Y2) and yarn (Y3), the yarn (Y1) is arranged on the visual interference layer (L1) on the clothing surface, the yarn (Y2) is arranged on the moisture diffusion layer (L2), and the yarn (Y3) is arranged on the visual interference layer (L3) on the skin-contacting surface.

[0022] Preferably, the yarn (Y2) and the yarn (Y3) in the fabric that helps to reduce the appearance of sweat marks of the present invention are the same. Beneficial effects

[0023] Compared with the prior art, the present invention fills the gap in the prior art because it helps to reduce the appearance of sweat marks on fabrics. Therefore, a detailed description of sweat marks on fabrics is given below:

[0024] In real life, adding a drop of water to a dry fabric will form a watermark. This is because the refractive index of water molecules to light is different from that of fabric fibers, resulting in refraction and reflection of light.

[0025] When a drop of water falls on dry fabric, an interface forms between the water molecules and the fabric fibers. Because the refractive index of water is greater than that of the fibers, light is refracted upon entering the drop. When light is refracted from the droplet, it is reflected on the fabric surface. This reflected light creates bright spots on the fabric surface, creating a contrast between light and dark areas (areas without bright spots appear dark). This contrast creates the watermark we see. When the water molecules evaporate from the fabric surface, the watermark disappears. The distribution and shape of the water molecules on the fabric depend on factors such as the fabric surface shape and the interaction between the fibers.

[0026] Theoretically, when light passes from one medium to another, the speed of light through the two media differs due to the different refractive indices, causing the direction of light propagation to change. This phenomenon is called refraction. The principle of light refraction can be described by Snell's Law. Snell's Law states that when light passes from one medium to another, the ratio of the sines of the angle of incidence and the angle of refraction is equal to the ratio of the refractive indices of the two media: sin(incident angle) / sin(refraction angle) = n² / n¹; where n¹ and n² represent the refractive indices of the two media, respectively.

[0027] According to Snell's law, when light travels from a denser medium (such as water or glass) to a less dense medium (such as air), the angle of refraction is smaller than the angle of incidence. Conversely, when light travels from a less dense medium to a denser medium, the angle of refraction is larger than the angle of incidence. This is particularly true for wet synthetic fabrics, where the presence of moisture makes the fibers more transparent. Furthermore, the refractive index of water differs from that of air, causing light to scatter irregularly, resulting in a different color than when the fabric is dry.

[0028] Analyzing the principle of sweat mark formation, we can break it down into two situations:

[0029] The first case is the process of sweat wetting and diffusion on the surface of the fabric. The reason why sweat marks are visible in this process is that part of the fabric surface is wetted. Compared with the non-wetted part, the wetted part has changed the refractive index of light in the wetted part, so we can see the wetted area, thus forming a white sweat mark formed by the accumulation of salt and protein in the sweat around it.

[0030] The second situation is that sweat wets the surface of the fabric and diffuses on the surface. As time goes by, the sweat evaporates, and the salt and protein in the sweat accumulate around it to form white sweat marks.

[0031] Thus, the present invention forms a fabric body with a logical three-layer structure by means of a visual interference layer (L1) on the garment surface, a moisture diffusion layer (L2), and a visual interference layer (L3) on the skin-contacting surface. At the same time, the present invention effectively improves comfort after sweating by forming a discontinuous 3D structure through the second raised portions arranged at intervals in the visual interference layer (L3) on the skin-contacting surface, reducing the contact area between the fabric skin-contacting surface and the skin, thereby reducing the adhesion between the fabric and the skin after sweating. The present invention allows sweat to diffuse and moisten the moisture diffusion layer (L2) located in the middle layer of the fabric through the intermediate moisture diffusion layer (L2). The present invention forms a discontinuous 3D structure through the first raised portions arranged at intervals in the visual interference layer (L1) on the garment surface, thereby obstructing the visibility of the process of sweat transfer formed by the 3D structure on the fabric garment surface, thereby achieving the visual effect of reduced sweat marks. It can be seen that the present invention reduces the amount of sweat reaching the clothing surface of the fabric (the visual interference layer on the clothing surface) and reduces the diffusion of sweat on the clothing surface while ensuring comfort, effectively achieving the purpose of the fabric of the present invention of improving comfort after sweating, reducing adhesion to the skin, and producing a visual effect of weakened sweat marks. It has strong practicality and is very suitable for wide promotion and use. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] FIG1 is a schematic diagram showing the principle of a fabric that helps to reduce the display of sweat marks according to the present invention.

[0033] FIG2 is a weaving diagram of the first embodiment of the present invention.

[0034] FIG3 is a weaving diagram of the second embodiment of the present invention. Best Mode for Carrying Out the Invention

[0035] The technical solutions in the embodiments of the present application are clearly and completely described below in conjunction with specific implementation examples and the accompanying drawings, and the technical solutions of the present invention are explained. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application. The specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings. Many specific details are explained in the following description to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below. The embodiments of the present invention are now described with reference to the accompanying drawings, and similar element numbers in the drawings represent similar elements.

[0036] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0037] As shown in Figure 1, the fabric of the present invention that helps reduce the appearance of sweat marks includes a fabric body, the fabric body including at least one yarn Y1. The fabric body of the present invention includes a garment-side visual interference layer L1, a moisture diffusion layer L2, and a skin-contacting visual interference layer L3. The garment-side visual interference layer L1 of the present invention has a non-continuous 3D structure arranged in the warp or weft direction and is spaced apart by first basic units. The first basic unit of the present invention includes a first raised portion A1, a height H1 of the first raised portion A1, a width W1 of the first raised portion A1, and a spacing width W2 between two adjacent first raised portions A1, wherein 0.5≤W2 / H1≤1.5 and 0.5≤W1 / W2≤3.5; preferably, W1=W2. The moisture diffusion layer L2 of the present invention is a continuous structure, and the height H2 of the moisture diffusion layer L2 is continuous. The skin-facing visual interference layer L3 of the present invention has a non-continuous 3D structure arranged in the warp or weft direction and spaced apart by a second basic unit. The second basic unit includes a second raised portion A2, a height H3 of the second raised portion A2, a width W3 of the second raised portion A2, and a spacing width W4 between two adjacent second raised portions A2. Preferably, the first raised portion A1 of the present invention is arranged to protrude from the first surface L21 of the moisture diffusion layer L2; the second raised portion A2 of the present invention is arranged to protrude from the second surface L22 of the moisture diffusion layer L2; and the first surface L21 and second surface L22 of the moisture diffusion layer L2 of the present invention are oppositely disposed surfaces. Thus, the present invention forms a fabric body with a logical three-layer structure, comprising the garment-facing visual interference layer L1, the moisture diffusion layer L2, and the skin-facing visual interference layer L3. At the same time, the present invention's discontinuous 3D structure, formed by the spaced-apart second raised portions A2 in the skin-facing visual interference layer L3, effectively improves comfort after sweating, reducing the contact area between the fabric's skin-facing surface (i.e., the skin-facing visual interference layer L3) and the skin, thereby reducing adhesion after sweating. The present invention's continuous, centrally located moisture diffusion layer L2 allows sweat to diffuse and moisten the fabric within the moisture diffusion layer L2 located in the middle layer. The present invention's discontinuous 3D structure, formed by the spaced-apart first raised portions A1 in the garment-facing visual interference layer L1, creates a 3D structure on the fabric garment surface (i.e., the garment-facing visual interference layer L1) to visually block the transfer of sweat, achieving the visual effect of reduced sweat marks. It can be seen that the present invention reduces the amount of sweat reaching the clothing surface of the fabric (i.e., the visual interference layer L1 on the clothing surface) and reduces the diffusion of sweat on the clothing surface while ensuring comfort, effectively achieving the purpose of the fabric of the present invention of improving comfort after sweating, reducing adhesion to the skin, and producing a visual effect of weakened sweat marks. The fabric is highly practical and is very suitable for widespread promotion and use.

[0038] Preferably, the present invention helps to reduce the perspiration marks in the fabric where H1≥0.05mm and H3≥0.05mm.

[0039] Preferably, the yarn Y1 in the fabric that helps reduce the appearance of sweat marks of the present invention is a non-transparent yarn, and the moisture regain of the yarn Y1 is less than 5%. Specifically, the yarn Y1 of the present invention is a synthetic fiber or a fiber with a water-repellent structure. When the yarn Y1 is a synthetic fiber, it is preferably a non-transparent synthetic fiber yarn with a sheath-core structure or a special-shaped cross-section structure.

[0040] Preferably, the fabric body of the fabric that helps reduce the appearance of sweat marks of the present invention is one of a single-sided basic structural fabric, a single-sided jacquard structural fabric, a double-sided basic structural fabric, a double-sided jacquard structural fabric, or a spacer fabric. When the fabric body is a single-sided basic structural fabric or a single-sided jacquard structural fabric, the surface contact angle of the yarn in the skin-facing visual interference layer L3 is less than 70°. When the fabric body is a double-sided basic structural fabric or a double-sided jacquard structural fabric, the surface contact angle of the yarn in the garment-facing visual interference layer L1 is less than 160°, and the surface contact angle of the yarn in the skin-facing visual interference layer L3 is less than 70°.

[0041] Preferably, the moisture diffusion layer L2 in the fabric that helps to reduce the display of sweat marks of the present invention is a hydrophilic fiber, the fiber surface contact angle of the hydrophilic fiber is ≤70°, and the preferred contact angle of the hydrophilic fiber is ≤45°, which helps to diffuse sweat.

[0042] Preferably, the fabric body of the fabric that helps reduce the appearance of sweat marks of the present invention further includes yarn Y2 and yarn Y3, wherein the yarn Y1 is arranged on the garment surface visual interference layer L1, the yarn Y2 is arranged on the moisture diffusion layer L2, and the yarn Y3 is arranged on the skin-contacting surface visual interference layer L3. Specifically, the yarn Y2 and the yarn Y3 are the same, that is, the moisture diffusion layer L2 and the skin-contacting surface visual interference layer L3 use the same yarn.

[0043] Example 1:

[0044] As shown in Figures 1 and 2, the fabric that helps reduce the display of sweat marks in this embodiment is a single-sided basic structure weft-knitted fabric. Its three-layer logical structure consists of the outermost visual interference layer L1 on the clothing surface, the middle layer of the moisture diffusion layer L2 for the diffusion and moisturizing of sweat, and the innermost skin-contacting visual interference layer L3. The fabric of this embodiment uses a yarn Y1, which is made of two yarns of 50D / 36F polyester fiber with a skin-core structure. The moisture regain of this polyester fiber is 0.4%. The surface contact angle of liquid water with yarn Y1 on the clothing surface visual interference layer L1 is 55°. During weaving, a 28G knitting circular machine is used, and the three-layer logical structure of the fabric is formed by a weaving process of double yarn threading. In this embodiment, the height H1 of the first raised portion A1 in the visual interference layer L1 on the garment surface is 0.25 mm, and the width W2 between two adjacent first raised portions A1 is 0.16 mm. Liquid moisture begins to diffuse from the skin-contacting visual interference layer L3. When the liquid moisture diffuses through the moisture diffusion layer L2 and diffuses into the garment surface visual interference layer L1, the moisture evaporates within the gap W2 between the two adjacent first raised portions A1. In this embodiment, the fabric W2 / H1 is 0.64. Under natural conditions, the refractive index of water molecules for light differs from that of fabric fibers, resulting in refraction and reflection of light. When water droplets fall on dry fabric, an interface is formed between the water molecules and the fabric fibers. Because the refractive index of water is greater than that of the fibers, light is refracted after entering the water droplet. When light refracts from the water droplet, it reflects from the fabric surface. As the water molecules evaporate from the fabric surface, the watermark disappears, thereby visually reducing the visibility of sweat marks. According to the anti-perspiration performance test method in the T / CNTAC 56-2020 group standard "General Technical Requirements for Functional Evaluation of Textiles", the water absorption of the skin-facing visual interference layer L3 and the color change of the clothing-facing visual interference layer L1 in this embodiment are Class D as described in the droplet type description in GB / T 19977. The droplets completely wet the clothing and disappear within 30 seconds.

[0045] Example 2:

[0046] In conjunction with Figures 1 and 3, the fabric that helps to reduce the display of sweat marks in this embodiment is a single-sided basic structure weft-knitted fabric, and its three-layer logical structure consists of the outermost clothing surface visual interference layer L1, the middle layer for the diffusion and moistening of sweat and other moisture diffusion layer L2, and the innermost skin-facing visual interference layer L3. The fabric of this embodiment uses two identical yarns Y1, and the yarn Y1 is made of two yarns of 50D / 36F polyester fiber with a skin-core structure. The moisture regain of the polyester fiber is 0.4%. The contact angle between liquid water and the yarn surface on the clothing surface visual interference layer L1 is 120°, and the contact angle between the yarn surface of the skin-facing visual interference layer L3 is 60°. A 32G circular knitting machine is used for weaving, and the three-layer logical structure of the fabric is formed by a weaving process in which the needle disc and needle cylinder yarns are separately threaded. In this embodiment, the height H1 of the first raised portion A1 in the visual interference layer L1 on the garment surface is 0.24 mm, and the width W2 between two adjacent first raised portions A1 is 0.14 mm. Liquid moisture diffuses from the skin-facing visual interference layer L3. As the liquid moisture diffuses through the moisture diffusion layer L2 and reaches the garment surface visual interference layer L1, it evaporates within the gap W2 between the two adjacent first raised portions A1. In this embodiment, the fabric W2 / H1 is 0.58. Under natural conditions, the refractive index of water molecules differs from that of fabric fibers, resulting in refraction and reflection of light. When a water droplet falls on dry fabric, an interface is formed between the water molecules and the fabric fibers. Because the refractive index of water is greater than that of the fibers, light is refracted after entering the water droplet. When light refracts from the water droplet, it reflects from the fabric surface. As the water molecules evaporate from the fabric surface, the watermark disappears, visually reducing the visibility of sweat marks. According to the anti-perspiration performance test method in the T / CNTAC 56-2020 group standard "General Technical Requirements for Functional Evaluation of Textiles", the water absorption of the skin-facing visual interference layer L3 and the color change of the clothing-facing visual interference layer L1 in this embodiment are Class D as described in the droplet type description in GB / T 19977. The droplets completely wet the clothing and disappear within 30 seconds.

[0047] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes that fall within the meaning and scope of the equivalent elements of the claims are included in the present invention. Any figure mark in the claims should not be regarded as limiting the claims involved. At the same time, what is disclosed above is only the preferred embodiment of the present invention, and of course it cannot be used to limit the scope of the rights of the present invention. Therefore, equivalent changes made according to the scope of the patent application of the present invention are still within the scope covered by the present invention.

Claims

1. A fabric that helps to reduce the appearance of sweat marks, comprising a fabric body, the fabric body comprising at least one yarn (Y1), characterized in that: The fabric body comprises a clothing surface visual interference layer (L1), a moisture diffusion layer (L2), and a skin-contacting surface visual interference layer (L3); The clothing surface visual interference layer (L1) is a non-continuous 3D structure in the warp or weft direction and is arranged at intervals of first basic units, wherein the first basic unit comprises a first protrusion, a height H1 of the first protrusion, a width W1 of the first protrusion, a width W2 of an interval between two adjacent first protrusions, 0.5≤W2 / H1≤1.5, and 0.5≤W1 / W2≤3.5; The moisture diffusion layer (L2) is a continuous structure, and the height of the moisture diffusion layer (L2) is H2; The skin-contacting visual interference layer (L3) is a non-continuous 3D structure in the warp or weft direction and is arranged at intervals with second basic units. The second basic unit includes a second protrusion, a height H3 of the second protrusion, a width W3 of the second protrusion, and an interval width W4 between two adjacent second protrusions.

2. The fabric that helps to reduce the display of sweat marks as claimed in claim 1, characterized in that: H1≥0.05mm, H3≥0.05mm.

3. The fabric that helps to reduce the display of sweat marks as claimed in claim 1, characterized in that: The yarn (Y1) is a non-transparent yarn and the moisture regain of the yarn (Y1) is less than 5%; or the yarn (Y1) is a fiber with a water-repellent structure.

4. The fabric that helps to reduce the display of sweat marks according to claim 3 is characterized in that: The yarn (Y1) is a non-transparent synthetic fiber yarn with a core-sheath structure or a special-shaped cross-section structure.

5. The fabric that helps to reduce the display of sweat marks as claimed in claim 1, characterized in that: The fabric body is one of single-sided basic structural fabric, single-sided jacquard structural fabric, double-sided basic structural fabric, double-sided jacquard structural fabric or spacer fabric.

6. The fabric that helps to reduce the display of sweat marks as claimed in claim 1, characterized in that: The fabric body is a single-sided basic structural fabric or a single-sided jacquard structural fabric, and the surface contact angle of the yarn in the skin-contacting visual interference layer (L3) is less than 70°; the fabric body is a double-sided basic structural fabric or a double-sided jacquard structural fabric, the surface contact angle of the yarn in the clothing surface visual interference layer (L1) is less than 160°, and the surface contact angle of the yarn in the skin-contacting visual interference layer (L3) is less than 70°.

7. The fabric that helps to reduce the display of sweat marks as claimed in claim 1, characterized in that: The moisture diffusion layer (L2) is a hydrophilic fiber, the fiber surface contact angle of the hydrophilic fiber is ≤70°, and the preferred contact angle of the hydrophilic fiber is ≤45°.

8. The fabric that helps to reduce the display of sweat marks as claimed in claim 1, characterized in that: W1=W2.

9. The fabric that helps to reduce the display of sweat marks as claimed in claim 1, characterized in that: The fabric body further comprises yarn (Y2) and yarn (Y3), wherein the yarn (Y1) is arranged on the visual interference layer (L1) on the clothing surface, the yarn (Y2) is arranged on the moisture diffusion layer (L2), and the yarn (Y3) is arranged on the visual interference layer (L3) on the skin-contacting surface.

10. The fabric that helps to reduce the display of sweat marks according to claim 9, characterized in that: The yarn (Y2) is identical to the yarn (Y3).

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