Single-layer jacquard warp-knitted fabric with dynamic ventilation adjusting function and manufacturing method of single-layer jacquard warp-knitted fabric

Abstract

The invention relates to a single-layer jacquard warp-knitted fabric with a dynamic ventilation adjusting function and a preparation method thereof.The fabric is of a single-layer structure and is knitted through a single-needle-bar warp knitting machine provided with a single jacquard device, and the fabric comprises a surface base layer area and a jacquard function area; the surface base layer area is formed by weaving non-elastic yarns by ground guide bars to form a supporting framework of the fabric, and the jacquard functional area is formed by weaving elastic yarns by at least one jacquard guide bar and is embedded into the surface base layer. The fabric can integrate the three functions of high elasticity, three-dimensional texture and dynamic ventilation adjustment, breaks through the limitation that a traditional fabric is single in function, responds to human body activities, achieves intelligent ventilation, and improves the wearing comfort.

Description

Technical Field

[0001] This invention relates to the field of textile technology, and in particular to a single-layer jacquard warp-knitted fabric with dynamic breathability adjustment function and its manufacturing method. Background Technology

[0002] As consumers increasingly demand functionality, aesthetics, and comfort in clothing fabrics, the market is experiencing a surge in demand for fabrics that combine jacquard effects, good elasticity, and intelligent breathability. Warp-knitted jacquard technology, with its powerful pattern programming capabilities, has become a key method for developing fabrics with complex patterns. Traditional single-needle bed warp knitting machines, equipped with jacquard devices, can achieve a wide range of jacquard effects, including mesh and plain weave. However, existing single-layer jacquard fabrics often have limited functionality, either prioritizing pattern presentation at the expense of dynamic comfort, or possessing elasticity but lacking the "intelligent" responsiveness to change shape and function significantly under external forces.

[0003] Existing technologies for developing variable-state fabrics typically rely on double-guide bars or complex double-layer structures, and lack comprehensive consideration for three-dimensional texture and elastic recovery. On the other hand, in the field of three-dimensional fabrics, existing technologies use high-boiling-water shrinkage yarns combined with Jacquard weaving to create a textured surface, but this is usually applied to double-needle-bed structures or has limitations in dyeing. Furthermore, conventional elastic fabrics mostly use weft-knitted structures, which, while offering excellent elasticity, do not provide the same pattern expressiveness and structural stability as warp-knitted products. Summary of the Invention

[0004] The purpose of this invention is to provide a single-layer jacquard warp-knitted fabric with dynamic breathability adjustment function and its manufacturing method. It can integrate three major functions: high elasticity, three-dimensional texture and dynamic breathability adjustment, breaking through the limitation of the single function of traditional fabrics. The fabric responds to human body activities, realizes intelligent breathability, and improves wearing comfort.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a single-layer jacquard warp-knitted fabric with dynamic breathability adjustment function. The fabric is a single-layer structure fabric woven by a single-needle bed warp knitting machine equipped with a single jacquard device. The fabric includes a base layer area and a jacquard functional area. The base layer area is formed by weaving non-elastic yarns from ground guide bars, constituting the supporting skeleton of the fabric. The jacquard functional area is formed by weaving elastic yarns from at least one jacquard guide bar and embedded in the base layer area.

[0006] Furthermore, the jacquard functional area includes a first type of functional area and a second type of functional area. The first type of functional area is woven with a first type of mesh and a first type of columnar protrusion structure, and the second type of functional area is woven with a second type of mesh and a second type of columnar protrusion structure.

[0007] Furthermore, the preset aperture of the second type of mesh is smaller than that of the first type of mesh.

[0008] Furthermore, the surface base area is formed by two ground combs using a warp-flat weave to create a surface base mesh; the first type of functional area is formed by Jacquard comb JB1.1 using a chain weave and a warp-flat weave; the second type of functional area is formed by Jacquard comb JB1.2 using a warp-pile weave and a warp-flat weave to create a mesh.

[0009] Furthermore, the non-elastic yarn is nylon DTY yarn; the elastic yarn is a core-spun yarn with nylon DTY as the outer fiber and spandex as the core yarn; preferably, the outer fiber is 30D / 24F nylon DTY, the core yarn is 40D spandex, and the amount of spandex is controlled at 5%-12% of the total yarn usage.

[0010] A method for preparing a single-layer jacquard warp-knitted fabric with breathable and regulating function as described in claim 1, the method comprising the following steps: Step S1, Guide bar configuration and yarn threading: Knitting is performed using a single-needle bed warp knitting machine equipped with a single Jacquard device; at least two ground guide bars GB4 and GB3 and at least one Jacquard guide bar are configured. One Jacquard guide bar consists of two and a half Jacquard guide bars JB1.1 and JB1.2. The ground guide bars GB4 and GB3 are fully threaded with nylon DTY yarn, and the Jacquard guide bars JB1.1 and JB1.2 are threaded with nylon core-spun yarn in a 1-thread-1-hole manner; Step S2, Organization Structure: Ground combs GB4 and GB3 use a warp-plain weave to form a surface base layer mesh; Jacquard comb JB1.1 is used to weave the first type of functional area; Jacquard comb JB1.2 is used to weave the second type of functional area; Step S3, weaving and finishing: On a single-needle bed warp knitting machine, the fabric is woven in an integrated manner according to the set structure and the formed Jacquard design file. After coming off the machine, the greige fabric undergoes finishing processes such as relaxation, refining, dyeing, and setting.

[0011] Furthermore, the padding yarn number of the ground comb GB4 is 1-0 / 1-2 / 1-0 / 2-3 / / ; the padding yarn number of the ground comb GB3 is 2-3 / 2-1 / 2-3 / 1-0 / / .

[0012] Furthermore, the Jacquard comb JB1.1, controlled by the Jacquard program, employs a combination of chain braiding and warp flat weave in areas where the first type of columnar protrusions and hidden mesh holes need to be formed. The Jacquard comb JB1.2, controlled by the Jacquard program, employs a combination of warp pile weave and warp flat weave to create the mesh in areas where the second type of columnar protrusions and smaller hidden mesh holes need to be formed.

[0013] Furthermore, JB1.1 performs a plain warp weave with padding yarn numbers of 1-0 / 1-2 / / in the normal horizontal row, but intermittently switches to a chain weave at preset grid point positions. JB1.2 performs a pile weave with padding yarn numbers of 2-3 / 1-0 / / in the normal position, and interweaves plain warp weave at set positions.

[0014] Furthermore, the feature is that the finishing processes of the unwoven fabric after the machine in step S3, such as relaxation, refining, dyeing, and setting, are further as follows: the unwoven fabric is first treated in hot water at 90°C for 20 minutes in a relaxed state to allow the woven fabric to fully shrink and stabilize; then it is dyed using low-temperature disperse dyes, with the dyeing temperature controlled at 115-120°C; finally, it is set at 140°C with an overfeed of 8%, and the setting is performed using a narrow-width support plate.

[0015] The beneficial effects of this invention are as follows: Compared with the prior art, this invention has the following advantages: 1. Functional Integration and Innovation: High elasticity, three-dimensional texture, and dynamic breathability adjustment have been successfully integrated into a single-layer, single-needle bed jacquard fabric, breaking through the limitations of traditional fabrics with only one function. The fabric responds to human movement, achieving intelligent breathability and improving wearing comfort.

[0016] 2. Structural and process optimization: By adopting a specific combination of P40D / 24F nylon DTY and 40D spandex core-spun yarn, and optimizing the structure of the Jacquard comb (flexible application of chain braiding, warp flattening, and warp pile), a stable hidden mesh and three-dimensional raised structure can be formed without the need for double-layer composite or the use of special shrinkage yarn.

[0017] 3. High-efficiency production and superior quality: Based on a mature single jacquard single-needle bed warp knitting machine, the production process is simple and easy to industrialize. The resulting fabric is lightweight (controllable at 100-150g / m²), soft and delicate to the touch, with excellent elastic recovery performance, and the jacquard programming allows for rapid pattern changes to meet the needs of personalized, small-batch markets.

[0018] 4. Broad application prospects: This fabric is particularly suitable for fields with high requirements for elasticity, comfort and functionality, such as high-end sports yoga wear, functional underwear, casual trousers and shoe materials that require three-dimensional jacquard effects, and has significant market competitiveness. Attached Figure Description

[0019] Figure 1 A schematic diagram of the surface structure of the single-layer jacquard warp-knitted fabric provided by the present invention in its natural state; Figure 2 for Figure 1 A schematic diagram of the surface structure of the fabric shown under transverse stretching conditions. Figure 3This is a schematic diagram of the comb bar configuration of the single Jacquard single needle bed warp knitting machine used in the preparation method of the present invention; Figure 4 This is a diagram showing the yarn padding motion of the GB4 comb in this invention; Figure 5 This is a diagram showing the yarn padding motion of the GB3 comb in this invention; Figure 6 This is a diagram showing the movement of the padding yarn in the GB4 and GB3 combined structure of this invention; Figure 7 The yarn padding motion diagram for Jacquard combs JB1.1 and JB1.2. Figure 8 Diagram of yarn movement in the base layer area; Figure 9 This is a schematic diagram of the jacquard functional areas; Figure 10 This is a schematic diagram of the first type of functional area; Figure 11 A schematic diagram of the first type of columnar protrusion within the first type of functional area. Figure 12 This is a schematic diagram of the hidden state of the first type of mesh. Figure 13 This is a schematic diagram of the second type of functional area; Figure 14 This is a schematic diagram of the second type of columnar protrusions in the second type of functional area; Figure 15 This is a schematic diagram of the hidden state of the second type of mesh. Figure 16 This is a schematic diagram showing the stretching direction of the fabric during stretching according to the present invention. Figure 17 A schematic diagram of the first type of mesh in the open state; Figure 18 A schematic diagram of the second type of mesh in the open state. Detailed Implementation

[0020] The invention will now be further described with reference to the accompanying drawings.

[0021] Please see Figures 1 to 18This invention provides an embodiment: a single-layer jacquard warp-knitted fabric with dynamic breathability adjustment function. The fabric is a single-layer structure fabric woven by a single-needle bed warp knitting machine equipped with a single jacquard device. The fabric includes a base layer area and a jacquard functional area. The base layer area is formed by weaving non-elastic yarns from the ground guide bar, constituting the supporting skeleton of the fabric. The jacquard functional area is formed by weaving at least one jacquard guide bar with elastic yarns and embedded in the base layer. In its natural state, the single-layer fabric of this application presents a tight, three-dimensional jacquard texture and a hidden mesh structure, possessing excellent aesthetic appeal and basic breathability for everyday wear. When the fabric is subjected to lateral or longitudinal stretching (such as during human movement), the hidden mesh structure unfolds, forming effective air circulation channels, significantly enhancing breathability and achieving "dynamic adjustment." Simultaneously, the fabric as a whole uses a specific combination of nylon and spandex yarns to ensure excellent high elasticity and high recovery performance, meeting the comfort requirements of close-fitting clothing. In this invention, the base layer area and the jacquard functional area are interwoven. The base layer area is formed by weaving non-elastic yarns from the ground comb, which constitutes the supporting skeleton of the fabric and mainly provides dimensional stability and basic coverage.

[0022] Please continue reading. Figures 8 to 18 As shown, in one embodiment of the present invention, the jacquard functional area includes a first type of functional area and a second type of functional area. The first type of functional area is woven with a first type of mesh and a first type of columnar protrusion structure, and the second type of functional area is woven with a second type of mesh and a second type of columnar protrusion structure. The jacquard functional area further includes the first type of functional area and the second type of functional area. In the natural state of the fabric, the first type of mesh is in a closed or semi-closed "hidden" state due to the contraction of the elastic yarn and the compression of the surrounding structure. At this time, this area mainly exhibits a continuous concave-convex columnar texture. When the fabric is stretched, the first type of mesh opens, forming through holes with a first aperture.

[0023] Please continue reading. Figures 4 to 18 As shown, in one embodiment of the present invention, the preset aperture of the second type of mesh is smaller than that of the first type of mesh. In its natural state, the second type of mesh is also hidden, and the area exhibits a denser mixed columnar texture; when stretched, the second type of mesh opens to form through holes of the second aperture. Through Jacquard design, the distribution, proportion, and shape of the first and second functional areas on the fabric surface are controlled, thereby forming a jacquard pattern with artistic aesthetics and achieving differentiated breathability and opening effects in different areas under stretching conditions.

[0024] Please continue reading. Figures 1 to 18As shown, in one embodiment of the present invention, the surface base area is formed by two ground combs through a warp-flat weave; the first type of functional area is formed by Jacquard comb JB1.1 using a chain weave and a warp-flat weave; the second type of functional area is formed by Jacquard comb JB1.2 using a warp-pile weave and a warp-flat weave.

[0025] Please continue reading from 1 to 20. Figure 18 As shown, in one embodiment of the present invention, the non-elastic yarn is nylon DTY yarn; the elastic yarn is a core-spun yarn with nylon DTY as the outer sheath fiber and spandex as the core filament; preferably, the outer sheath fiber is 30D / 24F nylon DTY, the core filament is 40D spandex, and the amount of spandex is controlled at 5%-12% of the total yarn content. The ultra-fine denier nylon DTY yarn of the specified specifications in this invention provides a delicate and soft hand feel, good coverage, and certain moisture-wicking properties. The spandex content is controlled between 5%-12% of the total yarn content to ensure that the fabric has sufficient elastic recovery, while avoiding dyeing difficulties or a stiff hand feel due to excessive spandex content. This yarn combination allows the fabric to ultimately possess both the abrasion resistance and softness of nylon and the high elastic recovery properties of spandex.

[0026] Please see Figures 1 to 18 The present invention provides an embodiment: a method for preparing a single-layer jacquard warp-knitted fabric with breathable and regulating function as described in claim 1, the preparation method comprising the following steps: Step S1, Guide bar configuration and yarn threading: Knitting is performed using a single-needle bed warp knitting machine equipped with a single Jacquard device; at least two ground guide bars GB4 and GB3 and at least one Jacquard guide bar are configured. One Jacquard guide bar consists of two and a half Jacquard guide bars JB1.1 and JB1.2. The ground guide bars GB4 and GB3 are fully threaded with nylon DTY yarn, and the Jacquard guide bars JB1.1 and JB1.2 are threaded with nylon core-spun yarn in a 1-thread-1-hole manner; Step S2, Organization Structure: Ground combs GB4 and GB3 use a warp-plain weave to form a surface base layer mesh; Jacquard comb JB1.1 is used to weave the first type of functional area; Jacquard comb JB1.2 is used to weave the second type of functional area; Ground combs GB4 and GB3 work together to form a stable and highly ductile surface base layer mesh.

[0027] Step S3, Weaving and Finishing: On a single-needle bed warp knitting machine, the fabric is woven in an integrated manner according to the set structure and the formed Jacquard design file. After coming off the machine, the greige fabric undergoes finishing processes such as relaxation, refining, dyeing, and setting. In the dyeing process, because the core elastic component uses core-spun yarn and the spandex content is moderate, color migration problems during dyeing can be effectively reduced. In the setting process, by controlling the temperature and tension, the elasticity of the spandex core yarn and the nylon outer fiber is reasonably utilized, ultimately enabling the fabric to achieve the designed natural state shape, elastic recovery rate, and dynamic mesh opening function under tension.

[0028] Please continue reading. Figure 4 , Figure 5 , Figure 6 , Figure 8 As shown, in one embodiment of the present invention, the yarn padding number of the ground comb GB4 is 1-0 / 1-2 / 1-0 / 2-3 / / ; the yarn padding number of the ground comb GB3 is 2-3 / 2-1 / 2-3 / 1-0 / / . The above-mentioned yarn padding number setting can form a mesh with good elasticity and breathability.

[0029] Please continue reading. Figures 7 to 18 As shown, in one embodiment of the present invention, the Jacquard comb JB1.1 is controlled by a Jacquard program. In areas where the first type of columnar protrusions and hidden mesh holes need to be formed, a combination of chain weave and warp plain weave is used. The Jacquard comb JB1.2 is controlled by a Jacquard program. In areas where the second type of columnar protrusions and smaller hidden mesh holes need to be formed, a combination of warp pile and warp plain weave is used to create the mesh. The shrinkage effect of the elastic yarn and the weave structure work together to make the first type of functional area protrude and hide the mesh holes in its natural state. By using a combination of warp pile and warp plain weave to create the mesh, the warp pile can more effectively hold the loops, forming a texture in the second type of functional area that is different from the first type of functional area. Furthermore, the Jacquard comb JB1.2 and JB1.1 form a certain "counter-pulling" effect, which helps to enhance the three-dimensional texture in subsequent finishing.

[0030] Please continue reading. Figure 7 As shown, in one embodiment of the present invention, JB1.1 performs a warp plain weave with padding yarn numbers of 1-0 / 1-2 / / in a normal horizontal row, but intermittently converts to a chain weave at preset grid point positions. JB1.2 performs a warp pile weave with padding yarn numbers of 2-3 / 1-0 / / in a normal position, and interweaves warp plain weave at set positions.

[0031] Please continue reading. Figures 1 to 18As shown, in one embodiment of the present invention, the finishing process of the unwoven fabric after step S3, including relaxation, refining, dyeing, and setting, is further as follows: the unwoven fabric is first treated in hot water at 90°C for 20 minutes in a relaxed state to allow the woven fabric to fully shrink and stabilize; then it is dyed using a low-temperature disperse dye, with the dyeing temperature controlled at 115-120°C; finally, it is set at 140°C with an overfeed of 8%, using a narrow-width support plate for setting. Specific Implementation

[0032] Equipment and configuration: A single-needle bed warp knitting machine equipped with a single jacquard device is used. The guide bars are arranged from front to back as follows: GB3, GB4, JB1.1, JB1.2. Among them, GB4 and GB3 are ground guide bars, and JB1.1 and JB1.2 are two halves of a jacquard guide bar that can be independently controlled for jacquard knitting.

[0033] Wearing gauze: GB4, GB3: Fully woven nylon P40D / 24F DTY.

[0034] JB1.1 and JB1.2: Both adopt the "1-through-1-empty" method to thread nylon-covered spandex core-spun yarn.

[0035] Organizational Structure and Jacquard Design: GB4: 1-0 / 1-2 / 1-0 / 2-3 / / GB3: 2-3 / 2-1 / 2-3 / 1-0 / / The organization of JB1.1 and JB1.2 is controlled by the Jacquard design file. Design a floral loop where: JB1.1 is responsible for the first type of functional area, which is responsible for weaving petal shapes. In this area, the Jacquard needles perform a plain warp weave of "1-0 / 1-2 / / " in most rows, but at predetermined grid points, they intermittently switch to chain weave (e.g., 1-0 / 0-1 / / ). This combination causes the elastic yarn to shrink after weaving, forming a continuous raised petal vein (first type of columnar protrusion), while the gaps between the chain weave points form the first type of mesh, which closes naturally due to the compression of the surrounding plain warp weave and the shrinkage of the yarn.

[0036] JB1.2 is responsible for weaving the second type of functional area, which surrounds the petals, in the shape of the leaf. Within this area, a "2-3 / 1-0 / / " warp-pile weave is primarily executed, interspersed with warp-flat weave at specific locations. The warp-pile weave creates a stronger tension effect, forming a second type of columnar protrusion, the width of which differs from the first type of columnar protrusion in the petal area (formed by JB1.1). Similarly, smaller mesh sizes are reserved in the weave design as second-type meshes, which are hidden in their natural state.

[0037] Knitting and finishing: Weaving is performed by setting appropriate machine speed, warp feed, and other process parameters. The finished fabric is first treated in 90℃ hot water for 20 minutes in a relaxed state to allow for full shrinkage and stabilization. It is then dyed (using low-temperature disperse dyes, with the dyeing temperature controlled at 115-120℃ to protect the elasticity of the spandex), and finally set at 140℃ with an 8% overfeed. A narrow support plate is used during setting to allow for moderate shrinkage in the weft direction, thus reinforcing the natural three-dimensional raised effect and the concealed mesh structure.

[0038] The resulting fabric is as follows Figure 1 and Figure 2 As shown. Figure 1 The fabric, in its natural state, displays petals (first-class functional areas, such as...). Figure 10 The corresponding white functional areas are shown) and the blades (second type of functional areas, such as... Figure 13 The areas shown all exhibit a clear, three-dimensional texture with varying depths. Figure 11 , Figure 14 , Figure 15 ), mesh ( Figure 12 (Invisible, the fabric has a dense appearance and a three-dimensional pattern.) Figure 2 Display when the fabric is along Figure 17 When the direction of the arrow shown is stretched, both the first type of mesh in the petal region and the second type of mesh in the leaf region are opened, as shown. Figure 17 and Figure 18 Furthermore, the openings of the first type of mesh in the open state are significantly larger than those of the second type of mesh in the open state, forming a gradient of breathable channels and significantly increasing air permeability. The fabric has excellent elasticity in both the longitudinal and transverse directions, a soft hand feel, and a weight of approximately 160g / m², making it suitable for manufacturing high-performance yoga pants or sports bras.

[0039] The above description is only a preferred embodiment of the present invention and should not be construed as a limitation of this application. All equivalent changes and modifications made in accordance with the scope of the patent application of the present invention should be covered by the present invention.

Claims

1. A single-layer jacquard warp-knitted fabric with dynamic breathability adjustment function, characterized in that: The fabric is a single-layer structure fabric woven by a single-needle bed warp knitting machine equipped with a single jacquard device. The fabric includes a base layer area and a jacquard functional area. The base layer area is formed by weaving non-elastic yarns from ground guide bars, forming the supporting skeleton of the fabric. The jacquard functional area is formed by weaving elastic yarns from at least one jacquard guide bar and embedded in the base layer area.

2. The single-layer jacquard warp-knitted fabric with dynamic breathability adjustment function according to claim 1, characterized in that: The jacquard functional area includes a first type of functional area and a second type of functional area. The first type of functional area is woven with a first type of mesh and a first type of columnar protrusion structure, and the second type of functional area is woven with a second type of mesh and a second type of columnar protrusion structure.

3. A single-layer jacquard warp-knitted fabric with dynamic breathability adjustment function according to claim 2, characterized in that: The preset aperture of the second type of mesh is smaller than that of the first type of mesh.

4. A single-layer jacquard warp-knitted fabric with dynamic breathability adjustment function according to claim 2, characterized in that, The surface base area is formed by two ground combs using a warp-flat weave to create a surface base mesh; the first type of functional area is formed by Jacquard comb JB1.1 using a chain weave and a warp-flat weave; the second type of functional area is formed by Jacquard comb JB1.2 using a warp-pile weave and a warp-flat weave to create a mesh.

5. A single-layer jacquard warp-knitted fabric with dynamic breathability adjustment function according to claim 1, characterized in that: The non-elastic yarn is nylon DTY yarn; the elastic yarn is a core-spun yarn with nylon DTY as the outer fiber and spandex as the core yarn; preferably, the outer fiber is 30D / 24F nylon DTY, the core yarn is 40D spandex, and the amount of spandex is controlled at 5%-12% of the total yarn usage.

6. A method for preparing a single-layer jacquard warp-knitted fabric with breathable and regulating function as described in claim 1: characterized in that, The preparation method includes the following steps: Step S1, Guide bar configuration and yarn threading: Knitting is performed using a single-needle bed warp knitting machine equipped with a single Jacquard device; at least two ground guide bars GB4 and GB3 and at least one Jacquard guide bar are configured. One Jacquard guide bar consists of two and a half Jacquard guide bars JB1.1 and JB1.

2. The ground guide bars GB4 and GB3 are fully threaded with nylon DTY yarn, and the Jacquard guide bars JB1.1 and JB1.2 are threaded with nylon core-spun yarn in a 1-thread-1-hole manner; Step S2, Organization Structure: Ground combs GB4 and GB3 use a warp-plain weave to form a surface base layer mesh; Jacquard comb JB1.1 is used to weave the first type of functional area; Jacquard comb JB1.2 is used to weave the second type of functional area; Step S3, weaving and finishing: On a single-needle bed warp knitting machine, the fabric is woven in an integrated manner according to the set structure and the formed Jacquard design file. After coming off the machine, the greige fabric undergoes finishing processes such as relaxation, refining, dyeing, and setting.

7. The method for preparing a single-layer jacquard warp-knitted fabric with dynamic breathability adjustment function according to claim 6, characterized in that: The padding yarn number for the GB4 ground comb is 1-0 / 1-2 / 1-0 / 2-3 / / ; the padding yarn number for the GB3 ground comb is 2-3 / 2-1 / 2-3 / 1-0 / / .

8. The method for preparing a single-layer jacquard warp-knitted fabric with dynamic breathability adjustment function according to claim 6, characterized in that: The Jacquard comb JB1.1 is controlled by the Jacquard program. In areas where the first type of columnar protrusions and hidden mesh holes need to be formed, a combination of chain braiding and warp flat weave is used. The Jacquard comb JB1.2 is controlled by the Jacquard program. In areas where the second type of columnar protrusions and smaller hidden mesh holes need to be formed, a combination of warp pile weave and warp flat weave is used to stretch the mesh.

9. The method for preparing a single-layer jacquard warp-knitted fabric with dynamic breathability adjustment function according to claim 8, characterized in that: JB1.1 performs a plain warp weave with padding yarn numbers of 1-0 / 1-2 / / in a normal horizontal row, but intermittently switches to a chain weave at preset grid point positions. JB1.2 performs a pile weave with padding yarn numbers of 2-3 / 1-0 / / in a normal position, and interweaves plain warp weave at set positions.

10. The method for preparing a single-layer jacquard warp-knitted fabric with dynamic breathability adjustment function according to claim 6, characterized in that: The finishing processes of the unwoven fabric after the machine in step S3, including relaxation, refining, dyeing, and setting, are further as follows: the unwoven fabric is first treated in hot water at 90°C for 20 minutes in a relaxed state to allow the woven fabric to fully shrink and stabilize; then it is dyed using low-temperature disperse dyes, with the dyeing temperature controlled at 115-120°C; finally, it is set at 140°C with an overfeed of 8%, using a narrow-width support plate for setting.

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