Warp-knitted mesh fabric

Abstract

The invention discloses a warp-knitted mesh fabric which comprises a fabric body, the fabric body is formed by weaving at least two different yarns including elastic yarns Y3 and non-elastic yarns, the non-elastic yarns include non-elastic yarns Y1 and non-elastic yarns Y2, the non-elastic yarns Y1 and the non-elastic yarns Y2 are threaded on a front guide bar and woven in a one-threading and one-empty threading manner, and the elastic yarns Y3 and the non-elastic yarns Y2 are woven in a one-threading and one-empty threading manner. The non-elastic yarn Y1 and the non-elastic yarn Y2 are woven into a circular structure, the total cross-stitch number in one circular structure is three, when the non-elastic yarn Y1 and the non-elastic yarn Y2 are woven with needle back transverse movement every time, the needle back transverse movement directions are opposite, and a symmetrical mesh structure composed of a plurality of breathable meshes is formed; the elastic yarn Y3 is woven on the inner layer of the fabric body on the rear guide bar in a full-penetration drawing-in mode to form a flat face, and the elastic yarn Y3 is woven to form extension lines which pass through the breathable meshes. The fabric has the advantages of being good in quick-drying property, resilience and air permeability and free to cut.

Description

Technical Field

[0001] The invention relates to the technical field of textile fabrics, in particular to a free-cut warp-knitted mesh fabric with good quick-drying properties, good recovery properties and air permeability. Background Art

[0002] With the improvement of living standards, people's requirements for clothing have changed from comfort and appearance to multiple functions. They require the fabric to be comfortable and beautiful, as well as moisture-absorbent and breathable, and to be cut as arbitrarily as possible to make the fabric fit better and be worn seamlessly.

[0003] The knitted free-cut fabrics on the market are generally weft-knitted double-sided fabrics and spacer fabrics, warp-knitted plain fabrics and free-cut mesh fabrics. The structure of the randomly cut fabric of weft knitted fabric is relatively limited, and generally most of them have the appearance of plain cloth; the randomly cut fabric of warp knitted fabric is generally in the same direction structure, such as, the same direction heavy warp plain structure with good stability of warp velvet, the same direction double warp plain, the same direction warp velvet plain, the same direction warp satin structure, etc. For example, patent CN110042551A mentions that the fabric has the appearance of plain cloth, is relatively tight, has a high spandex content, and sweats a lot during exercise, which makes it easy to wear stuffy and uncomfortable; the other is the randomly cut mesh fabric mentioned in patent JP5443524B2, which is a symmetrical structure of two filaments, one through and one empty, and two spandex yarns, one through and one empty, to form a mesh, and the balance of its symmetrical structure is used to achieve the effect of no curling. This fabric is relatively soft and collapsed, the mesh is large, and the air permeability is relatively good, but because of its good light transmittance, it has no privacy, and is easily deformed in the weft direction during wearing, and cannot recover quickly after stretching. Summary of the Invention

[0004] In order to solve the above technical problems, the present invention provides a warp knitted mesh fabric with good quick-drying properties, recovery properties, air permeability and the ability to be cut at will.

[0005] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0006] A warp-knitted mesh fabric comprises a fabric body, the fabric body being woven with at least two different yarns, including an elastic yarn Y3 and an inelastic yarn, wherein the inelastic yarn comprises an inelastic yarn Y1 and an inelastic yarn Y2, the inelastic yarn Y1 and the inelastic yarn Y2 being threaded onto a front comb bar and woven in a one-through-one-open threading method, with a total number of stitches spanning three in a loop structure, and each time the inelastic yarn Y1 and the inelastic yarn Y2 are woven with a needle back shift, the needle back shifts in opposite directions, forming a symmetrical mesh structure consisting of a plurality of breathable mesh holes; the elastic yarn Y3 is woven onto the inner layer of the fabric body in a full-through threading method on a rear comb bar to form a flat surface, the elastic yarn Y3 being woven to form an extension line, and the extension line passes through the breathable mesh hole, and the area size of the breathable mesh hole is calculated and set according to the following formula:

[0007]

[0008] Where: S is the area of ​​the air pores, unit: mm 2 ;

[0009] WPC is the weft density, in cm;

[0010] CPC is the warp density, in cm;

[0011] q is the warping draft ratio;

[0012] D is the denier of spandex;

[0013] n is the number of line segments of the extension line of the elastic yarn Y3 existing in one breathable mesh.

[0014] As a further improvement, the fabric body includes a non-elastic coil and an elastic coil, the non-elastic coil includes a Y1 coil formed by weaving non-elastic yarn Y1, and a Y2 coil formed by weaving non-elastic yarn Y2, the elastic coil is woven by elastic yarn Y3, the non-elastic yarn Y2 and the non-elastic yarn Y1 have the same number of stitches, and are synchronously padded in opposite or relative directions, and the tails of the elastic coils are glued together to form a closed loop structure.

[0015] As a further improvement, the denier of the elastic yarn is less than or equal to the denier of the non-elastic yarn, and the denier ratio of the elastic yarn to the denier of the non-elastic yarn is 0.4-0.8.

[0016] As a further improvement, the difference in denier between the non-elastic yarn Y1 and the non-elastic yarn Y2 is ≤30D.

[0017] As a further improvement, the non-elastic yarn Y1 and the non-elastic yarn Y2 form breathable meshes of the same size, and the vertical span height of the breathable meshes is ≤5 fabric loops.

[0018] As a further improvement, the digital structure of the inlay yarn of the non-elastic yarn Y1 is 1-0 / 1-2 / 2-3 / 2-1 / / , the digital structure of the inlay yarn of the non-elastic yarn Y2 is 2-3 / 2-1 / 1-0 / 1-2 / / , and the digital structure of the inlay yarn of the elastic yarn Y3 is 1-0 / 1-2 / / ; or the digital structure of the inlay yarn of the non-elastic yarn Y1 is 1-0 / 1-2 / 2-3 / 2-1 / / , the digital structure of the inlay yarn of the non-elastic yarn Y2 is 2-3 / 2-1 / 1-0 / 1-2 / / , and the digital structure of the inlay yarn of the elastic yarn Y3 is 1-2 / 1-0 / / .

[0019] As a further improvement, the digital structure of the inlay yarn of the non-elastic yarn Y1 is 1-0 / 1-2 / 2-1 / 2-3 / 2-1 / 1-2 / / , the digital structure of the inlay yarn of the non-elastic yarn Y2 is 2-3 / 2-1 / 1-2 / 1-0 / 1-2 / 2-1 / / , and the digital structure of the inlay yarn of the elastic yarn Y3 is 1-0 / 1-2 / / ; or the digital structure of the inlay yarn of the non-elastic yarn Y1 is 1-0 / 1-2 / 2-1 / 2-3 / 2-1 / 1-2 / / , the digital structure of the inlay yarn of the non-elastic yarn Y2 is 2-3 / 2-1 / 1-2 / 1-0 / 1-2 / 2-1 / / , and the digital structure of the inlay yarn of the elastic yarn Y3 is 1-2 / 1-0 / / .

[0020] As a further improvement, when the fabric body is knitted, the number of inlay yarns of each comb bar is one or more combinations of fully open loops, fully closed loops and open and closed loops.

[0021] As a further improvement, the longitudinal density of the fabric body is between 76 and 140 per inch, and preferably the longitudinal density of the fabric body is between 45 and 74 per inch.

[0022] As a further improvement, the non-elastic yarn Y1 has an FDY spinning structure of filament chemical fiber, and the non-elastic yarn Y2 has an FDY spinning structure of filament chemical fiber; or the non-elastic yarn Y1 or the non-elastic yarn Y2 is a multi-fiber yarn, and the number of fibers of the multi-fiber yarn is ≥ the denier; or the non-elastic yarn Y1 or the non-elastic yarn Y2 is a special-shaped yarn, and the yarn cross-section is a cross section, a Y-shaped section, a C-shaped section or a wavy section.

[0023] Compared with the prior art, the present invention has the following beneficial technical effects:

[0024] By combining non-elastic yarns with elastic yarns and weaving with a defined organizational structure, breathable meshes are formed, which deform and increase in size when stretched, thus improving breathability. By connecting different coils formed during weaving, the problems of burrs and loose ends after cutting of the fabric are reduced, thus preventing the fabric from falling apart. By selecting ultra-fine fibers or yarns with special cross-sections as the non-elastic yarns, the moisture conductivity is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is an illustration of air permeability value and air pore area;

[0026] Figure 2 Schematic diagram of the structure of embodiment 1 and embodiment 2 of the present invention;

[0027] Figure 3 This is a structural diagram of Example 3 of the present invention;

[0028] Figure 4 This is a schematic structural diagram of Example 4 of the present invention;

[0029] Figure 5 This is a schematic structural diagram of Example 5 of the present invention;

[0030] Figure 6 Schematic diagram of the organizational structure of the present invention. DETAILED DESCRIPTION

[0031] The embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and are not to be construed as limiting the present invention.

[0032] In the description of the present invention, it should be understood that if the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like are used to indicate the orientation or position relationship based on the orientation or position relationship shown in the accompanying drawings, they are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the said features. In the description of the present invention, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0033] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood broadly. For example, they may refer to fixed connections, removable connections, or integral connections. They may refer to mechanical connections or electrical connections. They may refer to direct connections or indirect connections through an intermediary, and they may refer to internal communication between two components or interactions between two components. Those skilled in the art will understand the specific meanings of these terms in the present invention based on the specific circumstances.

[0034] refer to Figure 1-5A warp-knitted mesh fabric comprises a fabric body formed by weaving a plurality of fabric loops with at least two different yarns, including elastic yarn Y3 and inelastic yarn. The inelastic yarn includes inelastic yarn Y1 and inelastic yarn Y2. The inelastic yarn Y1 and inelastic yarn Y2 are threaded onto a front bar in a one-through-one-out threading pattern, with a total of three stitches per loop. Each time the inelastic yarn Y1 and inelastic yarn Y2 are knitted, the needle backs shift in opposite directions, forming a symmetrical mesh structure composed of multiple breathable mesh holes. The elastic yarn Y3 is woven onto the inner layer of the fabric body in a full-through threading pattern on a rear bar, forming a flat surface. The elastic yarn Y3 is knitted with extension lines that pass through the breathable mesh holes, so that at least one partial segment of the elastic yarn Y3 exists in each breathable mesh hole. The elastic yarn Y3 can be made of spandex, which has good elasticity. The presence of a plurality of breathable meshes forms a mesh fabric. During knitting, the number of crossing stitches of the non-elastic yarn Y1 and the non-elastic yarn Y2 can be set to be the same.

[0035] When the fabric body is knitted, the number of yarns inlaid on each comb bar is one or more combinations of fully open loops, fully closed loops and open and closed loops.

[0036] The fabric body includes a non-elastic coil and an elastic coil. The non-elastic coil includes a Y1 coil formed by weaving non-elastic yarn Y1, and a Y2 coil formed by weaving non-elastic yarn Y2. The elastic coil is woven by elastic yarn Y3. The non-elastic yarn Y2 and the non-elastic yarn Y1 have the same number of stitch lengths and are synchronously padded in opposite or relative directions. The tails of the elastic coils are glued together to form a closed loop structure.

[0037] The elastic yarn Y3 is spandex. By passing the extended strands of the elastic yarn Y3 through the breathable mesh, the spandex maintains its natural, short, and thick state when unstretched, occupying a larger area of ​​the breathable mesh. During stretching, the spandex becomes thinner and longer, effectively blocking the breathable mesh and occupying less area, thereby increasing the permeability of the mesh. During processing, the mesh size is fixed through high-temperature pre-setting, resulting in a highly breathable mesh fabric. From the perspective of mechanical force, in a complete circular pattern, when the non-elastic yarn Y1 is padded at a certain place, there will always be a force that causes the Y1 coil to be skewed, but the non-elastic yarn Y2 has the same number of stitches as the non-elastic yarn Y1, and is synchronously padded into loops in the opposite or relative direction. The skew direction of the coil of Y2 is opposite to that of Y1, so that the force system of the filament is balanced, and the fabric has good curling properties; the spandex is fully threaded into a flat warp structure, and each coil structure has a filament coil, namely a non-elastic coil, and a spandex coil, namely an elastic coil. Since spandex will adhere to each other when exposed to high temperature, the tails of the spandex coils stick together after being pre-heated to form a closed loop, which can effectively reduce the problems of burrs and raveling after the fabric is cut, thereby ensuring that there will be no burrs and raveling when cut at any time. The fabric's inner layer is a flat surface made of spandex, with spandex stretch lines connecting the longitudinal rows of spandex coils within the breathable mesh. When the fabric is stretched, the spandex becomes thinner and longer along the weft. When the stretch is relieved, the spandex shrinks, shortening and thickening to return to its original length. This excellent stretch recovery of spandex contributes to the fabric's excellent resilience. The stretching action of the spandex stretch lines brings adjacent longitudinal rows of coils forming the breathable mesh closer together. When exposed to moisture, it diffuses rapidly between adjacent yarn fibers. The thinness of the mesh allows for rapid evaporation from the fabric's surface, resulting in a quick-drying effect.

[0038] The warp of the fabric body is stretched 150% and then restored to its original length. The warp curling degree is tested. When the warp is slightly tilted and the back side is not visible, the angle between its plane and the flat table is measured. At this time, the angle is less than 90°, and the specific angle can be calculated. When the back side of the fabric is visible and the rolled plane is perpendicular to the table, the angle is 90°. When the warp edge is rolled toward the front of the fabric and parallel to the table, the angle is 180°. When the warp edge is rolled and bent into a small loop toward the front, the angle is 270°. After stretching and recovery, the warp curling angle θ of the fabric is less than 75°. This shows that the fabric has the characteristics of arbitrary warp cutting effect and good recovery.

[0039] The denier of the elastic yarn is ≤ that of the non-elastic yarn, and the denier ratio of the elastic yarn to the non-elastic yarn is 0.4-0.8. The difference in denier between the non-elastic yarn Y1 and the non-elastic yarn Y2 is ≤ 30D. The non-elastic yarn Y1 and the non-elastic yarn Y2 form a breathable mesh of equal size, with a vertical span of ≤ 5 fabric loops. This ensures the fabric is both lightweight and durable, meeting breathability requirements. By selecting non-elastic yarn Y1 and non-elastic yarn Y2 with different diameters, water conductivity is improved.

[0040] In addition, the fabric body Y1 yarn has an FDY spinning structure of filament chemical fiber, and the Y2 yarn has an FDY spinning structure of filament chemical fiber. The FDY fully stretched yarn introduces stretching during the spinning process to obtain winding yarn with high orientation and medium crystallinity. The FDY yarn is straight. In terms of mechanical properties, the strength and modulus of the fully stretched yarn are improved in the axial direction, while the elongation is reduced, so that the tensile performance is stable when the fabric is woven and the fabric is shaped, and it is not easy to curl.

[0041] In addition, the non-elastic yarn Y1 or the non-elastic yarn Y2 is a multi-fiber yarn, and the number of fibers of the multi-fiber yarn is ≥ the denier; or the non-elastic yarn Y1 or the non-elastic yarn Y2 is a special-shaped yarn, and the yarn cross-section is a cross-section, a Y-section, a C-section or a wavy section. Selecting different types of yarns can give the fabric more functionality.

[0042] Non-elastic yarns can be ultrafine fibers or yarns with profiled cross-sections. These yarns have a high number of fibers and a fine denier. Ultrafine fibers have a larger specific surface area and a stronger moisture absorption capacity than conventional fibers. The high number of fibers creates numerous tiny gaps between the fibers, which increases the capillary effect. When a large amount of liquid water from sweat contacts the fabric, the fabric draws the water into the fabric, accelerating moisture conduction and diffusion rates. The water then evaporates quickly from the fabric surface, achieving a quick-drying effect. Profiled cross-section fibers have numerous grooves on their surface, which increase the fiber's specific surface area. A larger specific surface area provides a larger area for water evaporation, resulting in faster evaporation.

[0043] In addition, for the specific yarn laying number of each yarn, different methods can be used, as follows:

[0044] refer to Figure 2 As shown, the inlay yarn digital structure of the non-elastic yarn Y1 is 1-0 / 1-2 / 2-3 / 2-1 / / , the inlay yarn digital structure of the non-elastic yarn Y2 is 2-3 / 2-1 / 1-0 / 1-2 / / , and the inlay yarn digital structure of the elastic yarn Y3 is 1-0 / 1-2 / / .

[0045] Or as Figure 3As shown, the inlay yarn digital structure of the non-elastic yarn Y1 is 1-0 / 1-2 / 2-3 / 2-1 / / , the inlay yarn digital structure of the non-elastic yarn Y2 is 2-3 / 2-1 / 1-0 / 1-2 / / , and the inlay yarn digital structure of the elastic yarn Y3 is 1-2 / 1-0 / / .

[0046] Or as Figure 4 As shown, the inlay yarn digital structure of the non-elastic yarn Y1 is 1-0 / 1-2 / 2-1 / 2-3 / 2-1 / 1-2 / / , the inlay yarn digital structure of the non-elastic yarn Y2 is 2-3 / 2-1 / 1-2 / 1-0 / 1-2 / 2-1 / / , and the inlay yarn digital structure of the elastic yarn Y3 is 1-0 / 1-2 / / .

[0047] Or as Figure 5 As shown, the inlay yarn digital structure of the non-elastic yarn Y1 is 1-0 / 1-2 / 2-1 / 2-3 / 2-1 / 1-2 / / , the inlay yarn digital structure of the non-elastic yarn Y2 is 2-3 / 2-1 / 1-2 / 1-0 / 1-2 / 2-1 / / , and the inlay yarn digital structure of the elastic yarn Y3 is 1-2 / 1-0 / / .

[0048] The following describes the specific production examples.

[0049] 1. Warping of yarn used for warp knitting:

[0050] 1) Warping of filaments

[0051] Warping machine model: Karl Mayer DSDS21 / 30DNC, negative yarn feeding.

[0052] Warping temperature: 23°C, Warping humidity: 65%

[0053] The workshop sets the process parameters under the above temperature and humidity conditions.

[0054] 2) Warping of spandex

[0055] Warping machine model: Karl Mayer DSE21 / 21EC, positive yarn feeding.

[0056] Warping temperature: 23°C, Warping humidity: 65%

[0057] The workshop sets the process parameters under the above temperature and humidity conditions.

[0058] 2. Weaving

[0059] Weaving machine model: Karl Mayer HKS3-1, HKS4-1 or other single needle bed warp knitting machines

[0060] Gauge range: E28-E40

[0061] 3. Post-processing process

[0062] Washing (or dry cleaning) - pre-drying - overflow dyeing - dehydration - setting and drying - final setting.

[0063] Air volume refers to the volume of air drawn in or out by the fan per unit time and is a crucial parameter for the setting machine's fan. The greater the air volume, the wider the coverage of the fabric surface with hot air, making it easier to evenly distribute the hot air across the fabric surface, achieving a better setting effect. If the air volume is too low, the fabric surface will be heated unevenly, with areas being too high or too low, affecting the fabric's finish. Therefore, the appropriate air volume is selected based on the fabric type and weight. For fabrics that are relatively light and stretchy, when setting high temperatures (193°C-198°C), the upper and lower air volumes of the bellows should be kept to a minimum; 60%-75% is appropriate. For low-temperature post-setting, 35%-45% is appropriate.

[0064] Combine Figure 1-Figure 5 Tables 1 and 2 further illustrate the good quick-drying property, recovery property and air permeability of the warp knitted mesh fabric of the present invention.

[0065] Example 1

[0066] Main references Figure 2 As shown: machine model: HKS4-1 EL E32 130 inches, guide bars used: GB1, GB2, GB3; GB1: 1-0 / 1-2 / 2-3 / 2-1 / / 1 wear and 1 empty, non-elastic yarn Y1 is PA6 40D / 48F FD FDY, GB2: 2-3 / 2-1 / 1-0 / 1-2 / / 1 wear and 1 empty, non-elastic yarn Y2 is PA6 40D / 48F FD FDY, GB3: 1-2 / 1-0 / / full wear, elastic yarn Y3 is Spandex 25D, finished product width: 152cm, finished product weight: 120gsm, spandex content: 19%, GBT21655.1-2023 test evaporation rate: original sample 0.46g / h, washed 5 times 0.46g / h.

[0067] Example 2

[0068] Main references Figure 2As shown: Machine model: HKS4-1 EL E32 130 inches, guide bars used: GB1, GB2, GB3, GB1: 1-0 / 1-2 / 2-3 / 2-1 / / 1 wear and 1 empty, non-elastic yarn Y1 is PA6 40D / 48F FD FDY, GB2: 2-3 / 2-1 / 1-0 / 1-2 / / 1 wear and 1 empty, non-elastic yarn Y2 is PA6 40D / 48F FD FDY, GB3: 1-2 / 1-0 / / full wear, elastic yarn Y3 is Spandex 40D, finished product width: 152cm, finished product weight: 135gsm, spandex content: 25%, GBT21655.1-2023 test evaporation rate: original sample 0.51g / h, washed 5 times 0.47g / h. The yarn laying numbers of the three combing bars in Example 2 are the same as those in Example 1, but the denier and finished weight of the yarn used in combing bar GB3 are different.

[0069] Comparative Example 1: Machine model: HKS4-1 EL E32 130 inches, combs used: GB1, GB2, GB3, GB4, GB1: 1-0 / 1-2 / 2-3 / 2-1 / / 1 wear 1 empty, PA6 40D / 34F FD FDY, GB2: 2-3 / 2-1 / 1-0 / 1-2 / / 1 wear 1 empty, PA6 40D / 34F FD FDY, GB3: 1-0 / 1-2 / 2-3 / 2-1 / / 1 wear 1 empty, Spandex 30D, GB4: 2-3 / 2-1 / 1-0 / 1-2 / / 1 wear 1 empty, Spandex 30D, finished product width: 160cm, finished product weight: 125gsm, spandex content: 21%, GBT21655.1-2023 test evaporation rate: original sample 0.33g / h, 5 times washed 0.41g / h.

[0070] Note that the post-treatment auxiliary agent slurry formulas of the above Example 1, Example 2, and Comparative Example 1 are the same.

[0071] Responsiveness test: M&S P14A test method, the response rate comparison is shown in Table 1

[0072]

[0073] It can be seen from Table 1 that when the spandex thickness is similar, the fabric of the present invention has better weft recovery than the traditional warp satin mesh fabric (structure of comparative example 1).

[0074] Air permeability test: JIS L 1096A method test method, the finished product of Example 1 and the finished product of Example 2 were stretched in the weft direction, and the density change and air permeability value change before and after stretching were observed. The data values ​​are recorded in the following Table 2

[0075]

[0076] Note: Since the spandex diameter is very small, the change in spandex fineness is ignored during the stretching process, that is, when calculating the S value before and after the stretching change, the spandex thickness remains unchanged.

[0077]

[0078] Where: S is the area of ​​the air pores, unit: mm 2 ;

[0079] WPC is the weft density, in cm;

[0080] CPC is the warp density, in cm;

[0081] q is the warping draft ratio;

[0082] D is the denier of spandex;

[0083] n is the number of segments of the extension line of the elastic yarn Y3 in one breathable mesh. From Table 1, Figure 1 It can be concluded that the air permeability value and the air permeability pore area have the following relationship: y = 67524x 2 -69819x+18175, R2=0.9977, where y is the permeability value and x is the area of ​​the permeable pores.

[0084] The larger the pores, the better the air permeability, but the worse the stretchability. Therefore, when designing mesh fabrics, we must comprehensively consider air permeability and stretchability. According to the above formula, we can achieve a certain air permeability value by reasonably designing the warp density and weft density, while ensuring that the warp tension and weft tension are within the appropriate range.

[0085] It can be seen from the above test data that the warp knitted mesh fabric of the present invention has more superior performance and improved comfort.

[0086] It should be noted that the above are only preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. However, any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A warp knitted mesh fabric, comprising a fabric body, characterized in that: The fabric body is woven by at least two different yarns, including elastic yarn Y3 and inelastic yarn, wherein the inelastic yarn includes inelastic yarn Y1 and inelastic yarn Y2, the inelastic yarn Y1 and inelastic yarn Y2 are woven on the front comb and woven in a 1-through-1-empty threading mode, and the total number of cross stitches in a loop structure is 3 stitches, and each time the inelastic yarn Y1 and inelastic yarn Y2 are woven with a needle back transverse shift, the needle back transverse shift directions are opposite, forming a symmetrical mesh structure composed of a plurality of breathable mesh holes; the elastic yarn Y3 is woven on the inner layer of the fabric body in a full-through threading mode on the rear comb to form a flat surface, the elastic yarn Y3 is woven to form an extension line and the extension line passes through the breathable mesh hole, and the area size of the breathable mesh hole is calculated and set according to the following formula: Where: S is the area of ​​the air permeable pores, unit: mm 2 ; WPC is the weft density, in cm; CPC is the warp density, in cm; q is the warping draft ratio; D is the denier of spandex; n is the number of line segments of the extension line of the elastic yarn Y3 existing in one breathable mesh.

2. The warp knitted mesh fabric according to claim 1, characterized in that: The fabric body includes a non-elastic coil and an elastic coil. The non-elastic coil includes a Y1 coil formed by weaving a non-elastic yarn Y1, and a Y2 coil formed by weaving a non-elastic yarn Y2. The elastic coil is woven by an elastic yarn Y3. The non-elastic yarn Y2 and the non-elastic yarn Y1 have the same number of stitch lengths and are synchronously padded in opposite or relative directions to form loops. The tails of the elastic coils are glued together to form a closed loop structure.

3. The warp knitted mesh fabric according to claim 1, characterized in that: The denier of the elastic yarn is less than or equal to the denier of the non-elastic yarn, and the denier ratio of the elastic yarn to the denier of the non-elastic yarn is 0.4-0.

8.

4. The warp knitted mesh fabric according to claim 1, characterized in that: The difference in denier between the non-elastic yarn Y1 and the non-elastic yarn Y2 is ≤30D.

5. The warp knitted mesh fabric according to claim 1, characterized in that: The non-elastic yarn Y1 and the non-elastic yarn Y2 form air-permeable meshes of the same size, and the air-permeable meshes have a longitudinal span height of ≤5 fabric loops.

6. The warp knitted mesh fabric according to claim 1, characterized in that: The digital structure of the inlay yarn of the non-elastic yarn Y1 is 1-0 / 1-2 / 2-3 / 2-1 / / , the digital structure of the inlay yarn of the non-elastic yarn Y2 is 2-3 / 2-1 / 1-0 / 1-2 / / , and the digital structure of the inlay yarn of the elastic yarn Y3 is 1-0 / 1-2 / / ; Or the inlay yarn digital structure of the non-elastic yarn Y1 is 1-0 / 1-2 / 2-3 / 2-1 / / , the inlay yarn digital structure of the non-elastic yarn Y2 is 2-3 / 2-1 / 1-0 / 1-2 / / , and the inlay yarn digital structure of the elastic yarn Y3 is 1-2 / 1-0 / / .

7. The warp knitted mesh fabric according to claim 1, characterized in that: The digital structure of the inlay yarn of the non-elastic yarn Y1 is 1-0 / 1-2 / 2-1 / 2-3 / 2-1 / 1-2 / / , the digital structure of the inlay yarn of the non-elastic yarn Y2 is 2-3 / 2-1 / 1-2 / 1-0 / 1-2 / 2-1 / / , and the digital structure of the inlay yarn of the elastic yarn Y3 is 1-0 / 1-2 / / ; Or the digital structure of the inlay yarn of the non-elastic yarn Y1 is 1-0 / 1-2 / 2-1 / 2-3 / 2-1 / 1-2 / / , the digital structure of the inlay yarn of the non-elastic yarn Y2 is 2-3 / 2-1 / 1-2 / 1-0 / 1-2 / 2-1 / / , and the digital structure of the inlay yarn of the elastic yarn Y3 is 1-2 / 1-0 / / .

8. The warp knitted mesh fabric according to claim 6 or 7, characterized in that: When the fabric body is knitted, the number of inlay yarns of each comb bar is one or more combinations of fully open loops, fully closed loops and open and closed loops.

9. The warp knitted mesh fabric according to claim 1, characterized in that: The longitudinal density of the fabric body is between 76 and 140 per inch, and preferably the longitudinal density of the fabric body is between 45 and 74 per inch.

10. The warp knitted mesh fabric according to claim 1, characterized in that: The non-elastic yarn Y1 is a FDY spinning structure of filament chemical fiber, and the non-elastic yarn Y2 is a FDY spinning structure of filament chemical fiber; Or the non-elastic yarn Y1 or the non-elastic yarn Y2 is a multi-fiber yarn, and the number of fibers of the multi-fiber yarn is ≥ the denier; Alternatively, the non-elastic yarn Y1 or the non-elastic yarn Y2 is a special-shaped yarn, and the yarn cross section is a cross section, a Y-shaped section, a C-shaped section or a wavy section.

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