Fabric supporting weakened display of sweat print

Abstract

The invention discloses a fabric that helps to reduce the display of sweat marks, comprising at least one yarn (Y1), wherein 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 is a non-continuous 3D structure, having a first protrusion, a height H1 and a width W1 of the first protrusion, and a spacing width W2 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 surface visual interference layer (L3) is a non-continuous 3D structure, having a second protrusion, a height H3 and a width W3 of the second protrusion, and a spacing width W4 between two adjacent second protrusions. The fabric of the invention can improve the comfort after sweating, reduce the adhesion to the skin, and produce a visual effect of reducing sweat marks.

Description

Technical Field

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

[0002] When people exercise, they prefer to wear more breathable T-shirts. However, their body will produce a lot of sweat while exercising, and T-shirts of the prior art cannot evaporate the sweat quickly. Therefore, sweat will accumulate, and the accumulated sweat will cause the clothes to become wet and sticky, and then stick to the skin, causing discomfort to the wearer. At the same time, when the body sweats a lot, the sweat will often penetrate to the outside of the clothes, leaving many sweat marks on the surface of the clothes, which not only affects the appearance of the clothes, but also easily yellows the clothes. In relation to the problem caused by human body sweating, the prior art sweat treatment solutions for fabrics are mainly as follows: Chinese patent document CN208484320U titled "a kind of moisture-absorbing and perspiration-releasing printed knitted fabric", disclosed a fabric which includes a common fabric layer and a reinforcement layer adhered on the top of the common fabric layer, air holes are arranged inside both the common fabric layer and the reinforcement layer, and the air holes are arranged in several groups, a wear-resistant layer is arranged at one end of the air holes, a water-absorbing fabric layer is laid at the other end of the air holes, and anti-static fabric is inlaid inside the wear-resistant layer. The fabric can quickly absorb and discharge human sweat by combining the water-absorbing fabric layer with the common fabric layer, and at the same time increase the air permeability, making it more comfortable to wear. The bamboo charcoal fabric layer and the silver ion fabric layer can eliminate the smoke odor or odor produced by the human body, and at the same time have the function of sterilization and disinfection. By combining the wear-resistant layer with the reinforcement layer, the knitted fabric can be made more wear-resistant and durable. The wear-resistant layer is sprayed with a wear-resistant coating and has a good wear-resistant effect. The reinforcement layer is made of nylon yarns and has better tensile resistance.

[0003] Chinese patent document CN107354715A titled "a long-lasting antibacterial, sweat-proof and non-ironing finishing liquid and a finishing process for cotton fabrics", discloses a finishing liquid which is compounded with chitosan and extracts of herbal medicines, nano zinc oxide, nano silver powder and other additives. Chitosan is naturally occurring, non-toxic and degradable, with good biocompatibility, excellent antibacterial properties, and contains a large number of active chemical radicals on the surface, which are beneficial to the anit-shrinkage and wrinkle-proof effects. Arabic gum forms a film to wrap honeysuckle extract, houttuynia extract, pomegranate peel extract and nano zinc oxide, nano silver powder antibacterial agents to achieve sustained release and long-lasting antibacterial effects. Compound chitosan gives cotton fabrics good wrinkle resistance, non-ironing properties, and antibacterial properties, and improves the feel, strength and washability of cotton fabrics. The finished fabrics have good antibacterial, wrinkle resistance and non-ironing properties, sweat marks can be instantly absorbed and volatilized, good air permeability, and comfortable to wear. The use of oscillating drying avoids the pressure roller equipment that affects the air permeability of the fabric.

[0004] Chinese patent document CN103161045B discloses "an anti-sweat finishing method for moisture-absorbing and perspiration-releasing knitted fabrics" characterized by: including the following process flow: knitted fabric softening processing → sizing → knitted fabric front anti-sweat processing → anti-sweat inspection → baking. By subjecting the knitted fabric to a moisture-absorbing and perspiration-releasing softening treatment, sweat can be instantly absorbed and volatilized; then, a thin film coating with many breathable micropores is formed on the surface of the knitted fabric by means of paint printing, and each micropore is smaller than sweat and larger than the sweat molecules. By dissipating sweat in the form of gas, sweat marks are not left on the surface of the clothing, thus achieving an anti-sweat effect. The reverse side of the knitted fabric that has been processed to anti-sweat 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 its application.

[0005] Chinese patent document CN1414081A titled "A washing powder capable of removing yellow sweat stains discharged from human body on light-colored clothes" discloses a washing powder which has the following active ingredients: 10-20% sodium dodecyl sulfate, 10-15% fatty alcohol polyoxyethylene ether (n=9), 10-20% 4A zeolite, 10-30% NaHSO 4 , 10-20% NaNO 2 , all in mass percentage. The washing powder has the decontamination ability of ordinary washing powder and can remove yellow sweat stains on light-colored clothes. It has remarkable effect, mild reaction, no irritation to skin, and no damage to clothes. Since it does not contain sodium tripolyphosphate salt that affects the ecological environment, it does not pollute the environment.

[0006] The above different existing sweat treatment measures for fabrics for dealing with human body sweating can be summarized as follows: 1. Use laminated fabrics to quickly absorb and discharge human sweat; 2. Add reagents and use post-finishing processes to make sweat on the surface of clothing leave no trace; 3. For clothes that already have sweat marks, use specially formulated washing powder to remove them. These existing technologies generally only discharge sweat quickly, but cannot eliminate sweat marks. The use of post-finishing processes can help prevent sweat marks, but this type of method generally has the problem that the washing fastness of the auxiliary agents is not high, and their function will usually decrease or even disappear after a certain number of washes, and the material properties and organizational structure of the treated fabric will also be affected. The cleaning measures with washing powder of special formulas can only remove sweat marks at a later stage, and do not affect their appearance.

[0007] Therefore, the existing technologies cannot fundamentally solve the problem of sweat marks on fabrics. For this reason, the applicant has, through long-time production practice and scientific research, developed a fabric that helps to reduce the apparance of sweat stains to fill the gap in the existing technology.Technical problem

[0008] 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

[0009] To achieve the above-mentioned object, the present invention provides a fabric that helps to reduce the visibility of sweat marks, wherein the fabric comprises a fabric body that contains at least one yarn (Y1) and comprises a outer surface visual interference layer (L1), a moisture diffusion layer (L2), and a skin-contacting surface visual interference layer (L3);

[0010] The outer surface visual interference layer (L1) is a non-continuous 3D structure of first basic units arranged at intervals in the warp or weft direction, wherein the first basic unit comprises a first protrusion having a height H1 and a width W1, and a spacing width W2 between two adjacent first protrusions and wherein 0.5≤W2 / H1≤1.5, and 0.5≤W1 / W2≤3.5;

[0011] The moisture diffusion layer (L2) is a continuous structure, and the height of the moisture diffusion layer (L2) is H2;

[0012] The skin-contacting visual interference layer (L3) is a non-continuous 3D structure of second basic units arranged at intervals in the warp or weft direction. The second basic unit comprises a second protrusion having a height H3, a width W3, and a spacing width W4 between two adjacent second protrusions.

[0013] Preferably, in the fabric of the present invention that helps to reduce the display of sweat marks, H1≥0.05mm, H3≥0.05mm.

[0014] Preferably, in the fabric of the present invention that helps to reduce the display of sweat marks, the yarn (Y1) is a non-transparent yarn and its moisture regain is less than 5%; or the yarn (Y1) is a fiber with a water-repellent structure.

[0015] Preferably, in the fabric of the present invention that helps to reduce the display of sweat marks, the fabric body is selected from the group consisting of single-sided basic structural fabric, single-sided jacquard structural fabric, double-sided basic structural fabric, double-sided jacquard structural fabric and spacer fabric.

[0016] 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 structure fabric or a single-sided jacquard structure fabric, and the surface contact angle of the yarn in the skin-contacting visual interference layer (L3) is less than 70°. More preferably, the fabric body is a double-sided basic structure fabric or a double-sided jacquard structure fabric, the surface contact angle of the yarn in the outer 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°.

[0017] Preferably, in the fabric that helps to reduce the display of sweat marks of the present invention, 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°.

[0018] Preferably, in the fabric that helps to reduce the display of sweat marks of the present invention, W1=W2.

[0019] Preferably, in the fabric that helps to reduce the display of sweat marks of the present invention, the yarn (Y1) is a non-transparent synthetic fiber yarn with a core-sheath structure or a special-shaped cross-section structure.

[0020] Preferably, in the fabric that helps to reduce the display of sweat marks of the present invention, the fabric body further includes yarn Y2 and yarn Y3, yarn Y1 is arranged on the visual interference layer (L1) on the outer surface, yarn Y2 is arranged on the moisture diffusion layer (L2), and yarn Y3 is arranged on the visual interference layer (L3) on the skin-contacting surface.

[0021] Preferably, yarn Y2 and yarn Y3 in the fabric of the present invention are the same.Beneficial Effects

[0022] Compared with the prior art, the present invention helps to reduce the apparence of sweat marks on the fabric, thus filling the gap in the prior art. The sweat marks or stains on the fabric are described in detail as follows: 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.

[0023] When a drop of water falls on a dry fabric, the water molecules will form an interface with the fabric fibers. Because the refractive index of water is greater than that of the fiber, the light will be refracted after entering the water drop. When the light is refracted from the inside of the water drop, it will be reflected on the surface of the fabric. These reflected lights will form bright spots on the surface of the fabric, and at the same time form a light / dark contrast with the surrounding fabric (the area other than the bright spots is dark). The light / dark contrast formed by these bright spots constitutes the watermark we see. When the water molecules evaporate from the surface of the fabric, the watermark will also disappear. The distribution and shape of the watermark on the fabric depends on factors such as the shape of the fabric surface and the interaction force between the fibers.

[0024] Theoretically, when light passes from one medium to another, the speed of light passing through the two media is different due to the different refractive indices, and the propagation direction of the light will also change due to the different refractive indices. This phenomenon is called the refraction of light. The principle of light refraction can be described by Snell's Law. Snell's Law shows that when light passes from one medium to another, the ratio of the sine value of the incident angle and the sine value of the refractive angle is equal to the ratio of the refractive indices of the two media, that is, sin (incident angle) / sin (refraction angle) = n2 / n1; where n1 and n2 represent the refractive indices of the two media respectively.

[0025] According to Snell's law, when light is emitted 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; and when light is emitted from a less dense medium to a denser medium, the angle of refraction is larger than the angle of incidence. Especially for chemical fibers, when clothes are wet, the presence of water makes the fibers more transparent, and the refractive index of water is different from that of air, so it will scatter light irregularly, resulting in the color of the clothes being different from that in the dry state.

[0026] Analyzing the principle of sweat mark formation, we can break it down into two situations: The first case is the process of sweat wetting and diffusion on the fabric surface. 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.

[0027] 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 a white sweat mark.

[0028] It can be seen that the present invention forms a fabric body with a logical three-layer structure through the visual interference layer (L1) on the clothing surface, the moisture diffusion layer (L2) and the visual interference layer (L3) on the skin surface. At the same time, the present invention effectively improves the comfort after sweating through the discontinuous 3D structure formed by the second raised parts arranged at intervals in the visual interference layer (L3) on the skin surface, reduces the contact area between the fabric skin surface and the skin, and reduces the adhesion between the fabric and the skin after sweating. The present invention allows sweat to diffuse and moisten in the moisture diffusion layer (L2) located in the middle layer of the fabric through the moisture diffusion layer (L2) arranged in the middle. The present invention forms a discontinuous 3D structure through the first raised parts arranged at intervals in the visual interference layer (L1) on the clothing surface, and the process of sweat transfer formed on the fabric clothing surface is visually shielded, thereby achieving a 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, and effectively achieves the purpose of the fabric of the present invention being able to improve the comfort after sweating, reduce adhesion to the skin, and produce a visual effect of weakened sweat marks. The fabric has strong practicality and is very suitable for wide promotion and use.BRIEF DESCRIPTION OF THE DRAWINGS

[0029] FIG. 1 is a schematic diagram showing the principle of a fabric that helps to reduce the display of sweat marks according to the present invention. FIG. 2 is a weaving diagram of the first embodiment of the present invention. FIG. 3 is a weaving diagram of the second embodiment of the present invention. Best Mode for Carrying Out the Invention

[0030] 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 of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without making creative work are within the scope of protection of the present application. The specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are explained 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, so the present invention is not limited by the specific embodiments disclosed below. Embodiments of the present invention are now described with reference to the accompanying drawings, and similar element numbers in the accompanying drawings represent similar elements.

[0031] 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 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, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0032] As shown in Figure 1, the fabric that helps to reduce the display of sweat marks of the present invention includes a fabric body, the fabric body includes at least one yarn Y1, and the fabric body of the present invention includes 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 of the present invention is a non-continuous 3D structure arranged in the warp or weft direction and is spaced apart by a first basic unit; the first basic unit of the present invention includes a first protrusion A1, a height H1 of the first protrusion A1, a width W1 of the first protrusion A1, and a spacing width W2 between two adjacent first protrusions A1, 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 of the moisture diffusion layer L2 is H2. The skin-contacting visual interference layer L3 of the present invention is a non-continuous 3D structure arranged in the warp or weft direction and is spaced apart by a second basic unit, and the second basic unit includes a second protrusion A2, a height H3 of the second protrusion A2, a width W3 of the second protrusion A2, and an interval width W4 between two adjacent second protrusions A2. Preferably, the first protrusion A1 of the present invention is arranged to protrude from the first surface L21 of the moisture diffusion layer L2; the second protrusion A2 of the present invention is arranged to protrude from the second surface L22 of the moisture diffusion layer L2; the first surface L21 and the second surface L22 of the moisture diffusion layer L2 of the present invention are two oppositely arranged surfaces. It can be seen that the present invention forms a fabric body with a logical three-layer structure through the clothing surface visual interference layer L1, the moisture diffusion layer L2 and the skin-contacting visual interference layer L3. At the same time, the present invention effectively improves the comfort after sweating through the discontinuous 3D structure formed by the second raised portion A2 arranged at intervals in the skin-contacting visual interference layer L3, reduces the contact area between the fabric skin-contacting surface (i.e., the skin-contacting visual interference layer L3) and the skin to reduce the adhesion between the fabric and the skin after sweating. The present invention allows the sweat to diffuse and wet in the moisture diffusion layer L2 located in the middle layer of the fabric through the moisture diffusion layer L2 of the continuous structure arranged in the middle. The present invention forms a discontinuous 3D structure on the fabric clothing surface (i.e., the clothing surface visual interference layer L1) through the first raised portion A1 arranged at intervals in the clothing surface visual interference layer L1 to form a 3D structure to transmit sweat, and achieves a visual effect of weakening 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 clothing surface visual interference layer L1) under the premise of ensuring comfort, and reduces the diffusion of sweat on the clothing surface, effectively achieving the purpose of improving the comfort after sweating, reducing adhesion to the skin, and producing a visual effect of weakening sweat marks. It is highly practical and very suitable for widespread promotion and use.

[0033] Preferably, the present invention helps to reduce the sweat mark in the fabric H1≥0.05mm, H3≥0.05mm.

[0034] Preferably, the yarn Y1 in the fabric that helps to reduce the display 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. Among them, when the yarn Y1 is a synthetic fiber, it is preferably a non-transparent synthetic fiber yarn with a core-skin structure or a special-shaped cross-section structure.

[0035] Preferably, the fabric body of the fabric that helps to reduce the display of sweat marks of the present invention is one of single-sided basic structure fabric, single-sided jacquard structure fabric, double-sided basic structure fabric, double-sided jacquard structure fabric or spacer fabric. Wherein, when the fabric body is single-sided basic structure fabric or single-sided jacquard structure fabric, the surface contact angle of the yarn in the skin-contacting visual interference layer L3 is less than 70°. When the fabric body is double-sided basic structure fabric or double-sided jacquard structure 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°.

[0036] Preferably, in the fabric of the present invention that helps to reduce the display of sweat marks, 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°, which helps to diffuse sweat.

[0037] Preferably, the fabric body of the fabric that helps to reduce the display of sweat marks of the present invention further 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. Specifically, the yarn Y2 is the same as the yarn Y3, that is, the moisture diffusion layer L2 and the visual interference layer L3 on the skin-contacting surface use the same yarn.

[0038] Embodiment 1: 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 of the moisture diffusion layer L2 for the diffusion and moistening of sweat, and the innermost skin-contacting surface visual interference layer L3. The fabric of this embodiment uses a yarn Y1, and the yarn Y1 is made of two yarns of 50D / 36F polyester fiber with a skin-core structure. The regain of the polyester fiber is 0.4%. The surface contact angle between liquid water and yarn Y1 on the clothing surface visual interference layer L1 is 55°. A 28G knitting circular machine is used for weaving, and the three-layer logical structure of the fabric is formed by the weaving process of double yarn penetration. The height H1 of the first raised portion A1 in the clothing surface visual interference layer L1 in this embodiment is =0.25mm, the interval width W2 between the two adjacent first raised parts A1 =0.16mm, the liquid moisture begins to diffuse from the skin-contacting visual interference layer L3, and when the liquid moisture diffuses through the moisture diffusion layer L2 to the clothing surface visual interference layer L1, the moisture evaporates in the interval W2 between the two adjacent first raised parts A1 areas, and the fabric W2 / H1 of this embodiment =0.64. In a natural state, because the refractive index of water molecules to light is different from the refractive index of fabric fibers, refraction and reflection of light are formed. When water droplets are on a dry fabric, an interface is generated between the water molecules and the fabric fibers. Because the refractive index of water is greater than that of the fiber, the light will be refracted after entering the water droplets. When the light is refracted from the inside of the water droplet, it will reflect from the fabric surface. When the water molecules evaporate from the fabric surface, the watermark will also disappear, thereby visually achieving the effect of reducing the visibility of the sweat mark. 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-contacting visual interference layer L3 and the color change of the clothing-side visual interference layer L1 in this embodiment are Class D as described in the droplet type description in GB / T 19977. The droplets are completely wetted and disappear within 30 seconds.

[0039] Embodiment 2: 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 of the moisture diffusion layer L2 for the diffusion and moistening of sweat, and the innermost skin-contacting surface 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 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-contacting surface 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 the needle cylinder yarn are separately threaded. In this embodiment, the height H1 of the first raised portion A1 in the clothing surface visual interference layer L1 is =0.24mm, the interval width W2 between the two adjacent first raised parts A1 =0.14mm, the liquid moisture begins to diffuse from the skin-contacting visual interference layer L3, and when the liquid moisture diffuses through the moisture diffusion layer L2 to the clothing surface visual interference layer L1, the moisture evaporates in the interval W2 between the two adjacent first raised parts A1 areas, and the fabric W2 / H1 of this embodiment is 0.58. In the natural state, because the refractive index of water molecules to light is different from the refractive index of fabric fibers, refraction and reflection of light are formed. When water droplets are on dry fabrics, an interface is generated between the water molecules and the fabric fibers. Because the refractive index of water is greater than that of the fiber, the light will be refracted after entering the water droplets. When the light is refracted from the inside of the water droplets, it will reflect from the surface of the fabric. When the water molecules evaporate from the surface of the fabric, the watermark will disappear, thereby visually achieving the effect of reducing the visibility of the sweat mark. 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-contacting visual interference layer L3 and the color change of the clothing-side visual interference layer L1 in this embodiment are Class D as described in the droplet type description in GB / T 19977. The droplets are completely wetted and disappear within 30 seconds.

[0040] It is obvious to those skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and the present invention can be implemented in other specific forms without departing from the spirit or basic characteristics 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 attached claims rather than the above description, so it is intended to include all changes that fall within the meaning and scope of the equivalent elements of the claims 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, and a spacing width W2 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 reduce the appearance 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 appearance 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 appearance of sweat marks as claimed in 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 appearance 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 is characterized in that the fabric body is a single-sided basic structure fabric or a single-sided jacquard structure 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 structure fabric or a double-sided jacquard structure 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°.

7. The fabric that helps to reduce the display of sweat marks as claimed in claim 1 is 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 appearance 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 described in claim 1 is characterized in that the fabric body 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.

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

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