Double-layer fabric and garment

Abstract

The utility model relates to the technical field of garment materials, in particular to a double-layer fabric and garment. The double-layer fabric comprises a first fabric layer and a second fabric layer, and the first fabric layer and the second fabric layer are stacked; wherein a plurality of first through holes are formed in the first fabric layer, a plurality of second through holes are formed in the second fabric layer, and the first through holes and the second through holes are formed in a staggered mode. The through holes can serve as air holes and can be contracted and relaxed along with movement of a human body, the double-layer fabric is used for clothes, the effect of slowing down and increasing air exchange between an air layer below the clothes and the external environment can be achieved, and therefore the hot and wet comfort of the human body before and after the movement process is improved. When a person takes exercises, the structure is beneficial to rapid heat dissipation, and after the person takes exercises, the heat can be kept warm. Meanwhile, due to the double-fabric-layer structure, sweat can be absorbed and discharged by the inner layer, the water stain generation effect of the fabric on the outer layer is reduced, and the fabric is kept dry.

Description

Technical Field

[0001] This application relates to the field of clothing fabric technology, and in particular to double-layer fabrics and clothing. Background Technology

[0002] When exercising, especially in environments like morning runs in spring and autumn, the body's need to dissipate heat increases with the intensity of exercise. Therefore, clothing needs to be breathable and moisture-wicking to maintain body surface temperature. After exercise, body temperature drops, and warmth is urgently needed. Thus, the need for heat dissipation is dynamic during and after exercise. During exercise, sweat easily accumulates on the chest, armpits, and back, affecting the appearance of clothing.

[0003] While existing sportswear possesses moisture-wicking and quick-drying properties or high breathability, it struggles to guarantee a dynamic response to the body's heat dissipation needs. Some existing garments utilize highly breathable mesh warp-knitted fabrics. While these mesh textiles offer good breathability, as apparel, they only ensure heat dissipation and ventilation during exercise; they fail to provide warmth afterward. Therefore, they cannot meet the body's dynamic heat dissipation requirements and also leave skin exposed to the environment, raising privacy concerns.

[0004] Therefore, there is a need for a fabric that can increase breathability during exercise, increase warmth after exercise stops, respond to the dynamic heat dissipation needs of the human body, and keep the fabric surface dry. Summary of the Invention

[0005] The purpose of this application is to provide double-layer fabrics and clothing, aiming to solve the problem that existing clothing fabrics cannot respond to the dynamic heat dissipation needs of people and have low humidity and heat comfort.

[0006] To achieve the above-mentioned objectives, the technical solution adopted in this application is as follows:

[0007] In a first aspect, this application provides a double-layer fabric, which includes a first fabric layer and a second fabric layer, wherein the first fabric layer and the second fabric layer are stacked on top of each other.

[0008] The first fabric layer has a number of first through holes, and the second fabric layer has a number of second through holes, with the first through holes and the second through holes being staggered.

[0009] This application presents a double-layer fabric, consisting of two layers of fabric stacked on top of each other, both layers containing through-holes. The first and second through-holes are staggered, allowing for ventilation and expansion and contraction during movement. Using this double-layer fabric in clothing reduces and enhances air exchange between the inner layer and the external environment, thus improving thermal and moisture comfort before and after exercise. During exercise, this structure facilitates rapid heat dissipation, while providing warmth after exercise. Simultaneously, this double-layer structure allows sweat to be absorbed and released by the inner layer, reducing water stains on the outer fabric and keeping the garment dry.

[0010] Secondly, this application provides a garment containing the double-layered fabric described above.

[0011] This garment, containing the double-layered fabric described herein, exhibits excellent thermal and moisture comfort. It allows for rapid heat dissipation during exercise and provides warmth afterward, dynamically adjusting its performance according to the wearer's activity level. Simultaneously, the garment retains dryness, preventing sweat buildup, and the double-layered fabric effectively conceals the skin, enhancing privacy. Therefore, this garment possesses multiple functionalities and is suitable for sportswear. Attached Figure Description

[0012] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0013] Figure 1 This is a schematic diagram of the structure of the double-layer fabric in Embodiment 1 of this application;

[0014] Figure 2 This is a schematic diagram of the cross-sectional structure of the double-layer fabric in Embodiment 1 of this application;

[0015] Figure 3 This is a physical image of the double-layer fabric of Embodiment 1 of this application;

[0016] Figure 4 This is a schematic diagram showing the test results of the air permeability of the fabrics in Embodiment 1, Comparative Example 1, and Comparative Example 2 of this application;

[0017] Figure 5 This is a schematic diagram of the appearance change of the double-layer fabric under tensile deformation in Embodiment 1 of this application;

[0018] Figure 6 This is a schematic diagram of a garment made from a double-layer fabric according to Embodiment 1 of this application;

[0019] Figure 7This is a schematic diagram of a garment made from a double-layered fabric according to Embodiment 2 of this application;

[0020] Figure 8 This is a schematic diagram of the connection point of the second yarn in the double-layer fabric of this application to the first fabric layer.

[0021] Figure label:

[0022] 1-First fabric layer; 11-First through hole;

[0023] 2-Second fabric layer; 21-Second through hole;

[0024] 3-Second yarn. Detailed Implementation

[0025] To make the technical problems, technical solutions, and beneficial effects of this application clearer, the following detailed description is provided in conjunction with embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0026] In this application, the term "and / or" describes the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. A and B can be singular or plural. The character " / " generally indicates that the preceding and following related objects have an "or" relationship.

[0027] In this application, "at least one" means one or more, and "more than one" means two or more. "At least one of the following" or similar expressions refer to any combination of these items, including any combination of single or multiple items.

[0028] It should be understood that in the various embodiments of this application, the order of the above processes does not imply the order of execution. Some or all steps may be executed in parallel or sequentially. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of this application.

[0029] The weights of the relevant components mentioned in the embodiments of this application can refer not only to the specific content of each component, but also to the proportional relationship between the weights of the components. Therefore, any scaling up or down of the content of the relevant components according to the embodiments of this application is within the scope disclosed in the embodiments of this application. Specifically, the mass in the embodiments of this application can be a well-known unit of mass in the chemical industry, such as μg, mg, g, or kg.

[0030] The terms “first” and “second” are used only to describe the purpose and to distinguish between purposes such as substances, and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated.

[0031] The first aspect of this application provides a double-layer fabric, as an embodiment of this application, such as... Figure 1 As shown, the double-layer fabric includes a first fabric layer 1 and a second fabric layer 2, which are stacked together.

[0032] The first fabric layer 1 is provided with a plurality of first through holes 11, and the second fabric layer 2 is provided with a plurality of second through holes 21, wherein the first through holes 11 and the second through holes 21 are staggered.

[0033] This embodiment of the double-layer fabric consists of two layers of fabric stacked on top of each other, with through-holes in both layers. The first and second through-holes are staggered. These through-holes act as ventilation holes, allowing the fabric to contract and expand during movement. Using this double-layer fabric in clothing reduces and increases air exchange between the inner layer and the external environment, thus improving thermal and moisture comfort before and after exercise. During exercise, this structure facilitates rapid heat dissipation, while providing warmth after exercise. Simultaneously, this double-layer structure allows sweat to be absorbed and released by the inner layer, reducing water stains on the outer fabric and keeping the garment dry.

[0034] In addition, the staggered arrangement of the first and second through holes can cover the skin, avoid direct exposure of the human body, and improve privacy.

[0035] [Regarding the first fabric layer]

[0036] In some embodiments, the distance between two adjacent first through holes is 5mm to 5cm. In exemplary cases, it may include, but is not limited to, any value or a range between any two of 5mm, 30mm, 1cm, 3cm, and 5cm. Figure 1 As shown, Figure 1 The first through-hole is hexagonal. The distance between two adjacent first through-holes refers to the distance between the adjacent edges of the two hexagonal first through-holes that are closest to each other. The distance between two adjacent first through-holes ensures a reasonable spacing between them. According to the functional requirements of the double-layer fabric, a smaller distance provides better heat dissipation, breathability, and sun protection, while a larger distance provides better warmth retention. This improves the functionality of the double-layer fabric and also enhances privacy.

[0037] In some embodiments, the distance between two adjacent first through holes is the same. In this case, the first through holes in the first fabric layer are evenly distributed, which is beneficial for the double-layer fabric to have thermal comfort and keep it dry.

[0038] In some embodiments, the cross-sectional area of ​​the first through hole is 1–150 mm². 2 In the example, it may include, but is not limited to, 1mm. 2 50mm 2 100mm 2 150mm 2 The range of any value or any two values ​​in the range. The cross-sectional area refers to the area of ​​a plane parallel to the first fabric layer, such as... Figure 1 As shown, this refers to the area of ​​the hexagon of the first through-hole. These first through-holes with cross-sectional areas endow the first fabric layer with both heat dissipation and heat retention properties. Within this range, the larger the cross-sectional area, the better the breathability and heat dissipation performance; the smaller the cross-sectional area, the better the heat retention performance. These first through-holes with cross-sectional areas endow the double-layer fabric with good heat dissipation, breathability, sun shading, warmth retention, and dryness, improving the functionality of the double-layer fabric and also enhancing privacy.

[0039] In some embodiments, the shape of the first through-hole can be the same or different, and can be at least one of circular, elliptical, square, or strip-shaped. The shape of these first through-holes helps the double-layer fabric to possess the aforementioned moisture-temperature comfort function, and also improves privacy. In the relaxed state, the shape of the first through-hole can be rhomboid, wherein the length of the longer diagonal can be 2mm to 3cm.

[0040] The parameters of the first through-hole can be the same or different in the first fabric layer to improve adaptability. For example, in the fabric layer used in areas where the human body is prone to heat generation and accumulation, the cross-sectional area of ​​the first through-hole can be larger, and the distance between two adjacent first through-holes can be smaller to improve heat dissipation and breathability. The fabric layer used in other areas can be configured in the opposite way.

[0041] In some embodiments, the thickness of the first fabric layer is 0.2 mm to 1.0 mm. In exemplary cases, it may include, but is not limited to, any value or a range between any two of 0.2 mm, 0.5 mm, 0.7 mm, and 1.0 mm. These first fabric layers enable the first fabric layer to possess both heat dissipation and heat retention properties, giving the double-layer fabric better thermal comfort.

[0042] The first fabric layer can be a fabric layer containing elastic fabric. Selecting elastic fabric for the first fabric layer gives it stretchability, allowing it to adapt to different scenarios during and after exercise. The elastic fabric can include at least one of polyester-spandex core-spun yarn fabric, nylon-spandex core-spun yarn fabric, and non-spandex elastic yarn fabric. These elastic fabrics can be woven from a first yarn, and the thickness of the first yarn contained in the elastic fabric can be 70D to 140D. In the example, it can include, but is not limited to, any value or a range between any two of 70D, 90D, 110D, and 140D. When the first fabric layer is a fabric layer of these elastic fabrics, the first through-hole can be a mesh provided in the fabric. These elastic fabrics have different degrees of elasticity, giving the fabric different degrees of stretchability, which can dynamically adjust with human movement during and after exercise to adapt to different application scenarios. In some embodiments, the tensile deformation rate of the first through hole can be 0% to 200%, so that the cross-sectional area of ​​the first through hole in the first fabric layer can be dynamically adjusted during and after human movement, dynamically adjusting the thermal comfort, so that heat dissipation and breathability can be achieved quickly during exercise, and warmth can be retained after exercise, thus improving the functionality of the double-layer fabric.

[0043] Regarding the second fabric layer

[0044] The type and thickness of the second fabric layer, as well as the cross-sectional area, shape, and adjacent distance of the second through-holes, can all be referenced from the corresponding parameters in the first fabric layer. These parameters can be the same as or different from those in the first fabric layer, thus creating a double-layered fabric with similar or dissimilar properties. Therefore, the second fabric layer, in conjunction with the first fabric layer, enables the double-layered fabric to dynamically adjust its heat dissipation, breathability, sun shading, warmth retention, and dryness, improving the functionality of the double-layered fabric and enhancing privacy.

[0045] When the first and second fabric layers are used in clothing, the first fabric layer can be the outer layer and the second fabric layer can be the inner layer, or the first fabric layer can be the inner layer and the second fabric layer can be the outer layer.

[0046] [About double-layer fabric]

[0047] The double-layer fabric utilizes a staggered arrangement of the first through-hole in the first fabric layer and the second through-hole in the second fabric layer. This allows the double-layer fabric to dynamically adjust its heat dissipation, breathability, sun shading, warmth retention, and drying properties, improving both functionality and privacy. This staggered arrangement can be either completely obscuring the second through-hole from the first through-hole, or partially revealing the second through-hole from the first through-hole; both are considered forms of staggered arrangement.

[0048] The offset distance between the first and second through holes directly affects the overall performance of the double-layer fabric. In some embodiments, the offset distance between the first through hole and the adjacent second through hole is 2mm to 5cm. In the example, it can include, but is not limited to, any value or a range between any two values ​​of 2mm, 5mm, 1cm, and 5cm. This offset distance is as follows... Figure 1 As shown, this is the distance between the adjacent edges of the first through hole 11 and the second through hole 21. Within this offset distance range, when the offset distance is smaller, the double-layer fabric has better warmth retention; when the offset distance is larger, the double-layer fabric has better breathability and heat dissipation. In addition, the first and second through holes will stretch and deform when a person moves, allowing the double-layer fabric to dynamically adjust its moisture and heat comfort.

[0049] In some embodiments, a gap exists between the first fabric layer and the second fabric layer, the gap being 0.25–2 mm. In exemplary cases, the gap may include, but is not limited to, any value or a range between any two of 0.25 mm, 0.5 mm, 1 mm, and 2 mm. This gap between the two fabric layers improves breathability and alleviates the tightness between the fabric layers, allowing the first and second through-holes in the two fabric layers to stretch and change with human movement, ensuring thermal comfort.

[0050] In some embodiments, such as Figure 2 As shown, the first fabric layer 1 and the second fabric layer 2 are connected by several second yarns 3. Connecting the two fabric layers with second yarns 3 can improve the overall performance of the double-layer fabric. On the one hand, it can maintain a suitable gap between the two fabric layers, which is conducive to breathability and heat dissipation, and at the same time, the double-layer fabric will not fall apart. On the other hand, the connection of the second yarns 3 allows the first fabric layer 1 and the second fabric layer 2 to move flexibly relative to each other, which is more conducive to the dynamic adjustment of the double-layer fabric in response to human movement, ensuring thermal comfort.

[0051] In some embodiments, the second yarn has a diameter of 70D to 140D. In exemplary embodiments, it may include, but is not limited to, any value or a range between any two of 70D, 90D, 110D, and 140D. These diameters of the second yarn ensure connection strength and the firmness of the connection between the first and second fabric layers. The quantity and distribution density of the second yarn can be designed and adjusted according to comprehensive factors such as the strength requirements of the double-layer fabric, cost, and processing difficulty. In an exemplary embodiment, the distribution density of the second yarn can be one row around each through-hole (first or second through-hole), with two needles connected in each row. As the through-hole size increases, the number of needles can gradually increase to six rows around each mesh opening, with eight needles connected in each row. In an exemplary embodiment, it can be as follows... Figure 8 As shown, the specific connection points of the second yarn on the first fabric layer are added sequentially in the order of 1 to 8.

[0052] Before use, double-layer fabrics can be treated with finishing agents according to the application scenario, including but not limited to cooling finishing, hydrophilic finishing, and water-repellent finishing.

[0053] A second aspect of this application provides a garment comprising the double-layer fabric described in the above application embodiment.

[0054] The garment described in this application, containing a double-layered fabric, exhibits excellent thermal and moisture comfort. It allows for rapid heat dissipation during exercise and provides warmth afterward, dynamically adjusting its performance according to the wearer's activity level. Simultaneously, the garment retains dryness, preventing sweat buildup, and the double-layered fabric effectively conceals the skin, enhancing privacy. Therefore, this garment possesses multiple functionalities and is suitable for sportswear.

[0055] In the example, the garments in this application embodiment can be produced using a double-needle bed Jacquard warp knitting machine and a computerized flat knitting machine.

[0056] The following description is based on specific embodiments.

[0057] Example 1

[0058] This embodiment provides a double-layer fabric, such as Figure 1 , Figure 2 As shown, the double-layer fabric consists of two elastic fabric layers with evenly distributed mesh, namely, a first fabric layer 1 and a second fabric layer 2. Both are woven using the same elastic yarn, specifically 50D / 20D polyester / spandex core-spun yarn. The fabric is woven using a double-machine Jacquard warp knitting machine. At least one ground comb forms the first layer of the greige fabric on the front needle bed, and at least one ground comb forms the second layer of the greige fabric on the back needle bed. At least one intermediate comb connects the front and back needle bed fabrics, forming a single, integrated double-layer fabric. Both the first fabric layer 1 and the second fabric layer 2 have rice-grain-shaped mesh openings, specifically the first through-hole 11 in the first fabric layer 1 and the second through-hole 21 in the second fabric layer 2. The mesh openings in the first fabric layer 1 and the second fabric layer 2 are staggered. The first fabric layer 1 and the second fabric layer 2 are connected by a second yarn 3, which is also 50D / 20D polyester / spandex core-spun yarn. A physical image is shown below. Figure 3 As shown.

[0059] This double-layer fabric can be used in clothing, such as... Figure 6 As shown.

[0060] Example 2

[0061] This embodiment provides a double-layer fabric, such as Figure 7As shown, the double-layer fabric consists of two elastic fabric layers with non-uniformly distributed mesh, namely the first fabric layer and the second fabric layer, woven using different elastic yarns. The first fabric layer is woven from 50D / 20D polyester / spandex core-spun yarn, while the second fabric layer is woven from non-spandex elastic yarn PBT. The first and second fabric layers are connected by 50D / 20D polyester / spandex core-spun yarn.

[0062] On a double-needle bed Jacquard warp knitting machine or flat knitting machine, the mesh distribution density, mesh density, and mesh size in the double-layer fabric are adjusted according to the distribution of human sweat and the deformation of the limbs during human movement. The mesh in the double-layer fabric is non-uniformly distributed, with denser mesh in some areas that need breathability and heat dissipation, and sparser mesh in other areas. Thus, when the double-layer fabric is used in clothing, different parts have different mesh sizes, positions, and densities, giving the double-layer fabric and clothing the ability to dynamically adjust moisture and heat comfort.

[0063] Example 3

[0064] This embodiment provides a double-layer fabric, which consists of two elastic fabric layers with evenly distributed mesh, namely a first fabric layer and a second fabric layer, woven using different elastic yarns. It is woven on a double-needle bed jacquard knitting machine or a flat knitting machine. The first fabric layer, as the inner layer, is made of polyester hydrophobic elastic yarn, while the second fabric layer, as the outer layer, is made of polyester elastic hydrophilic yarn, achieving high breathability while also providing one-way moisture wicking and quick-drying properties. The first and second fabric layers are connected by polyester hydrophobic elastic yarn.

[0065] Example 4

[0066] This embodiment provides a double-layer fabric, which consists of two elastic fabric layers with evenly distributed mesh, namely a first fabric layer and a second fabric layer, woven using different elastic yarns. It is woven on a double-needle bed jacquard warp knitting machine or a flat knitting machine. The first fabric layer, as the inner layer, is made of nylon elastic yarn, and the second fabric layer, as the outer layer, is made of polyester elastic yarn. This achieves high breathability while allowing for separate dyeing of the nylon and polyester to create a two-tone effect on both sides, as well as cooling properties. The first and second fabric layers are connected by nylon elastic yarn.

[0067] Comparative Example 1

[0068] The fabric provided in Comparative Example 1 is a single layer, which is the first fabric layer in the double-layer fabric layer of Example 1, namely a single-layer fabric layer woven from 50D and 20D polyester spandex core-spun yarn, without any through holes.

[0069] Comparative Example 2

[0070] Comparative Example 2 provides a double-layer fabric, which is made by weaving the fabric woven from 50D20D polyester spandex core-spun yarn of Comparative Example 1 into a double-layer fabric.

[0071] Breathability test:

[0072] The double-layer fabric provided in Example 1, and the fabrics provided in Comparative Example 1 and Comparative Example 2 were tested according to the test method of GB / T 5453-1997 using a fully automatic air permeability meter YG461G, under test conditions of 20°C and 60% humidity in a constant temperature and humidity chamber. The results are as follows. Figure 4 As shown, from Figure 4 As can be seen, the double-layer staggered mesh fabric of Example 1 exhibits significantly higher air permeability than the fabrics of Comparative Example 1 and Comparative Example 2, regardless of whether it is subjected to no stretching deformation or a stretching deformation rate of 20% or 40%. This demonstrates that the double-layer fabric of Example 1 possesses excellent air permeability both statically and during movement, especially enabling rapid heat dissipation and ventilation during movement.

[0073] Example 1: Changes in mesh appearance during tensile deformation of a double-layer fabric as follows Figure 5 As shown, Example 1 uses a fabric made of elastic yarn. Figure 5 As can be seen, when the tensile deformation is 0%, that is, in the static state, corresponding to the end of human movement, the cross-sectional area of ​​the mesh in the double-layer fabric of Example 1 is relatively small, exhibiting good thermal insulation performance. As the tensile deformation increases, corresponding to human movement, the cross-sectional area of ​​the mesh gradually increases, improving heat dissipation and breathability. Therefore, the double-layer fabric of Example 1 can dynamically adjust its heat dissipation, breathability, and thermal insulation performance, providing excellent moisture and heat comfort.

[0074] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A double-layer fabric, characterized in that: It includes a first fabric layer and a second fabric layer, which are stacked together. The first fabric layer is provided with a plurality of first through holes, and the second fabric layer is provided with a plurality of second through holes, wherein the first through holes and the second through holes are staggered. At least one of the first fabric layer and the second fabric layer includes an elastic fabric.

2. The double-layer fabric according to claim 1, characterized in that: The distance between the first through hole and the adjacent second through hole is 2 mm to 5 cm. And / or, the distance between two adjacent first through holes is 5 mm to 5 cm; And / or, the distance between two adjacent first through holes is the same; And / or, the distance between two adjacent second through holes is 5 mm to 5 cm; And / or, the distance between two adjacent second through holes is the same.

3. The double-layer fabric according to claim 1 or 2, characterized in that: The cross-sectional area of ​​the first through hole is 1–150 mm. 2 ; And / or, the cross-sectional area of ​​the second through hole is 1 to 150 mm². 2 .

4. The double-layer fabric according to claim 1 or 2, characterized in that: The tensile deformation rate of the first through hole is 0% to 200%, and the tensile deformation rate of the second through hole is 0% to 200%. And / or, the shape of the first through hole and the second through hole is at least one of the following: circular, elliptical, square, and strip-shaped.

5. The double-layer fabric according to claim 1 or 2, characterized in that: The thickness of the first fabric layer is 0.2 mm to 1.0 mm, and the thickness of the second fabric layer is 0.2 mm to 1.0 mm; And / or, the elastic fabric includes polyester-spandex core-spun yarn fabric, nylon-spandex core-spun yarn fabric, and non-spandex elastic yarn fabric.

6. The double-layer fabric according to claim 5, characterized in that: The elastic fabric contains a first yarn with a thickness of 70 D to 140 D.

7. The double-layer fabric according to any one of claims 1, 2, or 6, characterized in that: There is a gap between the first fabric layer and the second fabric layer, and the gap is 0.25 to 2 mm.

8. The double-layer fabric according to any one of claims 1, 2, or 6, characterized in that: The first fabric layer and the second fabric layer are connected by a plurality of second yarns.

9. The double-layer fabric according to claim 8, characterized in that: The second yarn has a thickness of 70 D to 140 D.

10. A garment, characterized in that: The garment contains a double-layered fabric as described in any one of claims 1 to 9.

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