Highly permeable and crease-resistant fabric

Abstract

The utility model discloses a high -transmittance folding -resistant fabric, it includes: bottom layer, it is by first yarn and is woven and has a plurality of gas hole that penetrates along its thickness in the even distribution of extension plane, surface layer, it is by transparent second yarn and is woven, and connecting layer, it is by third yarn and is connected bottom layer and surface layer formed along the vertical direction to the third yarn is complex filament yarn, wherein, in the unit area of avoiding the position of gas hole, the mass of connecting layer is less than the mass of bottom layer, surface layer. The fabric has the excellent performance of light and thin and good performance of folding resistance.

Description

Technical Field

[0001] This utility model relates to the field of fabric technology, specifically to a highly transparent and durable fabric. Background Technology

[0002] The prior art provides a multi-layered fabric knitted with a double needle bed. This fabric relies on the coordinated knitting of the front and rear needle beds to have good folding resistance. However, due to its multi-layered structure, this fabric has poor breathability and a heavy, lacking lightness. Utility Model Content

[0003] The purpose of this utility model is to overcome the above-mentioned defects or problems in the background technology and provide a highly transparent and durable fabric with excellent properties such as being lightweight, transparent, and durable.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] Technical Solution 1: A highly breathable and durable fabric, comprising: a bottom layer woven from a first yarn and having a plurality of breathable holes evenly distributed along its thickness on an extended plane; a top layer woven from a transparent second yarn; and a connecting layer formed by a third yarn connecting the bottom layer and the top layer in a vertical direction, wherein the third yarn is a multifilament yarn; wherein, within a unit area avoiding the location of the breathable holes, the mass of the connecting layer is less than the mass of the bottom layer and the top layer.

[0006] Technical Solution 2 based on Technical Solution 1: The bottom layer includes a plurality of first convex strips woven along a first direction and a plurality of second convex strips woven along a second direction intersecting the first direction, with the ventilation holes formed between adjacent first convex strips and second convex strips.

[0007] Technical Solution 3 based on Technical Solution 2: The widths of the first and second convex strips are equal; the shapes and sizes of each of the vent holes are equal; wherein, the ratio of the maximum size of any vent hole on its extension plane to the width of the first or second convex strip is in the range of 1:1 to 2:1.

[0008] Technical Solution 4 based on Technical Solution 3: The size of the air vent in the longitudinal direction of the fabric is larger than its size in the transverse direction.

[0009] Technical solution five, based on any one of technical solutions two to four: the ratio of the width of the first convex strip and the width of the second convex strip to the diameter of the first yarn is greater than 10.

[0010] Technical Solution Six based on Technical Solution One: The height of the connecting layer is greater than the sum of the thicknesses of the bottom layer and the top layer.

[0011] Technical solution seven based on technical solution one: The fibers of the second yarn and the third yarn are core-spun fibers, the core layer of the core-spun fibers is made of polybutylene terephthalate, and its sheath layer is made of polyester.

[0012] Technical solution eight based on technical solution one: The surface layer is woven from the second yarn with a transverse density of 12 to 13 loops / cm and a longitudinal density of 12 to 13 loops / cm.

[0013] As can be seen from the above description of this utility model, compared with the prior art, this utility model has the following beneficial effects:

[0014] Technical Solution 1 provides a highly breathable and durable fabric that can improve the problems of poor breathability and heavy appearance of existing double-needle bed warp-knitted fabrics. The reason why existing double-needle bed warp-knitted fabrics have this problem is that their multi-layer structure is constructed with high-density yarns, which prevents light from penetrating and obstructs air circulation.

[0015] In this design, the perforations penetrating the bottom layer form a macroscopic physical channel for air to enter the fabric. These perforations are much larger than the natural pores between fibers in traditional fabrics, significantly reducing air resistance. Air entering the fabric is buffered and diffused within the three-dimensional space created by the connecting layer, and ultimately dissipates to the outside through the surface layer, which is sparsely woven from transparent second yarns. Furthermore, the use of transparent second yarns in the surface layer allows light to penetrate, revealing the internal connecting and bottom layer structures. Since the third yarn in the connecting layer extends along the fabric's thickness, the perforations in the bottom layer are easily visible. This results in an overall transparent appearance for the fabric. However, transparent yarns generally have lower physical strength, and fabrics using transparent yarns often fail to meet the required folding resistance. Therefore, this design specifically uses multifilament yarns in the connecting layer. Physically, multifilament yarns consist of multiple strands of fine denier filaments, and their overall bending stiffness is much lower than that of monofilaments of the same cross-sectional area. When the fabric is bent, these low-stiffness multifilament connecting yarns bend easily and gently, unlike high-stiffness monofilaments which generate rigid resistance and accumulate stress. This makes the bending action of the entire fabric extremely smooth and flexible, and effectively avoids fatigue breakage of the connecting yarns during repeated folding, thus ensuring durability. Furthermore, by setting the mass of the connecting layer per unit area to be less than that of the bottom and top layers, the fabric achieves a lightweight and flexible connection in the connecting layer, allowing the entire fabric to absorb and disperse stress through flexible deformation. Therefore, this fabric possesses excellent properties such as lightness, breathability, and good folding resistance.

[0016] In technical solution two, a mesh structure is formed by interlacing the first and second convex strips. These convex strips themselves act as reinforcing ribs, effectively compensating for the structural strength loss caused by the ventilation holes in the bottom layer. This ensures that the bottom layer can maintain its geometric stability under stress, preventing fabric deformation. Furthermore, this structure gives the ventilation holes a certain degree of deformation characteristics. When the fabric is bent or twisted by external forces, the deformation of the ventilation holes allows the fabric to better adapt to different shapes and movement states.

[0017] In technical solution three, the ratio of the maximum size of the vent hole to the width of the convex strip is limited to the range of 1:1 to 2:1. This ensures that the vent hole has a sufficiently large area to achieve efficient air circulation, while also ensuring that the convex strip, which serves as a structural support, has sufficient material width to bear the load. This avoids the problem of structural fragility or insufficient air permeability caused by improper opening ratio.

[0018] In technical solution four, the size of the ventilation hole in the longitudinal direction of the fabric is set to be larger than its size in the transverse direction. Since the product mainly bends in the longitudinal direction during actual use, the shape of the ventilation hole that extends in this direction can better adapt to this bending deformation and reduce stress concentration at the edge of the hole due to the mismatch between the shape and the stress direction.

[0019] In technical solution five, the width of the raised strip is set to be more than 10 times the diameter of its constituent yarns, ensuring that each raised strip is a strip-like structure with a smooth surface formed by multiple yarns closely arranged side by side, rather than a linear structure. When the fabric comes into contact with the skin, this wider and smoother contact surface can effectively distribute pressure.

[0020] In technical solution six, the height of the connecting layer is set to be greater than the sum of the thicknesses of the bottom and top layers, ensuring that the connecting layer has a relatively ample three-dimensional space. This increased space provides the multifilament yarns of the connecting layer with a longer bending and rebound stroke, enabling them to absorb more impact energy under pressure, thus providing a superior cushioning effect. At the same time, this open space provides ample channels for the free flow of air and moisture, significantly improving the fabric's breathability and moisture permeability, thereby delivering excellent wearing comfort.

[0021] In technical solution seven, the fibers in the second and third yarns are preferably core-spun fibers, with the outer layer of the core-spun fiber being polyester and the core layer being PBT. Polyester has good transparency and luster, and as the outer layer, it can give the yarn high light transmittance and a bright appearance, ensuring the fabric's transparency. At the same time, polyester has a stable refractive index, and the PBT core layer, which is tightly bonded to the outer layer, will not significantly affect its light transmittance, ensuring that light can smoothly pass through the yarn, making the overall visual effect of the fabric clear and transparent. PBT (polybutylene terephthalate) has excellent elastic recovery and fatigue resistance, and as the core layer, it can provide the yarn with good elasticity and bending resistance, allowing the fabric to quickly recover its original shape after multiple bends, reducing wrinkles and deformation.

[0022] In technical solution eight, the transverse and longitudinal densities are both set within the range of 12 to 13 loops / cm. On the one hand, this ensures that the surface layer has enough yarn interlacing points to form a stable, uniform, and non-deformable mesh surface, which has basic tensile and abrasion resistance. On the other hand, this density avoids significantly reducing the natural porosity between yarns due to excessively dense loops, thus reserving sufficient channels for the penetration of light and air. Attached Figure Description

[0023] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the following description of the embodiments will be briefly introduced. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 This is a cross-sectional schematic diagram of the high-permeability and fold-resistant fabric involved in an embodiment of this utility model;

[0025] Figure 2 This is a schematic diagram of the bottom layer of the high-permeability and fold-resistant fabric involved in the embodiments of this utility model.

[0026] Explanation of key figure labels:

[0027] Top layer 10; connecting layer 20; bottom layer 30; ventilation hole 31; first convex strip 32; second convex strip 33. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are preferred embodiments of the present utility model and should not be considered as excluding other embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0029] Unless otherwise expressly defined, the use of terms such as "first," "second," or "third" in the claims, description, and drawings of this utility model is for distinguishing different objects and not for describing a specific order.

[0030] Unless otherwise expressly defined, in the claims, description, and accompanying drawings of this utility model, the use of directional terms such as "center," "lateral," "longitudinal," "horizontal," "vertical," "top," "bottom," "inner," "outer," "upper," "lower," "front," "rear," "left," "right," "clockwise," and "counterclockwise" to indicate orientation or positional relationships is based on the orientation and positional relationships shown in the accompanying drawings and is only for the convenience of describing this utility model and simplifying the description. It does not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as limiting the specific protection scope of this utility model.

[0031] Unless otherwise expressly defined, the terms "fixed connection" or "fixed connection" used in the claims, description and drawings of this utility model shall be interpreted broadly to refer to any connection in which there is no displacement or relative rotation relationship between the two parties, including non-removable fixed connection, detachable fixed connection, integral connection and fixed connection through other devices or components.

[0032] In the claims, description and accompanying drawings of this utility model, the terms "comprising", "having", and variations thereof are used to mean "including but not limited to".

[0033] Example

[0034] This utility model embodiment relates to a highly breathable and durable fabric, referring to... Figure 1 and Figure 2 The fabric includes: a base layer 30, which is woven from a first yarn and has a plurality of breathable holes 31 evenly distributed along its thickness on an extended plane; a top layer 10, which is woven from a transparent second yarn; and a connecting layer 20, which is formed by connecting the base layer 30 and the top layer 10 in a vertical direction with a third yarn, wherein the third yarn is a multifilament yarn; wherein, within a unit area avoiding the location of the breathable holes 31, the mass of the connecting layer 20 is less than the mass of the base layer 30 and the top layer 10.

[0035] Specifically, this fabric is a three-dimensional, one-piece spacer fabric. It is not bonded or laminated, but rather a monolithic structure directly woven from yarns. Its structure includes a base layer 30, a surface layer 10, and a connecting layer 20. The base layer 30 is a base fabric layer with a mesh-like opening. The surface layer 10 is a flat outer fabric layer. The connecting layer 20 consists of independent connecting yarns, which are vertically or slightly inclinedly connected between the base layer 30 and the surface layer 10, creating a three-dimensional space between the two layers. This three-layer, one-piece structure is woven in one piece using a double-needle bed warp knitting machine. On a warp knitting machine, at least three guide bars are configured: one or more guide bars thread through the first yarn and knit on the front needle bed to form the bottom layer 30 through a specific yarn-laying motion; another guide bar thread through the second yarn and knit on the back needle bed to form the top layer 10; and a third guide bar thread through the third yarn (i.e., the connecting yarn), which oscillates back and forth between the front and back needle beds to lay yarn, connecting the bottom layer 30 and the top layer 10 into a whole. Quality control of the connecting layer 20 is achieved by selecting a finer third yarn and / or setting a lower connecting yarn density. In one specific embodiment, the first yarn used for knitting the bottom layer is 150D / 48F (150 denier / 48 fibers), and the knitting density of the solid portion of the bottom layer is relatively high. The second yarn used for knitting the top layer is 75D / 36F. The third yarn used for weaving the connecting layer not only uses the same 75D / 36F specification as the surface layer yarn, but its number of yarns per unit area (i.e., the connection density) is also programmed to be at a lower level. This combination ensures that, for the same area, the total weight of the yarns constituting the connecting layer is significantly lower than the total weight of the yarns constituting the bottom or surface layer, thus achieving a lightweight connecting layer.

[0036] Among them, reference Figure 2 The bottom layer 30 includes a plurality of first raised strips 32 woven along a first direction and a plurality of second raised strips 33 woven along a second direction intersecting the first direction. Ventilation holes 31 are formed between adjacent first raised strips 32 and second raised strips 33. Specifically, the physical structure of the bottom layer 30 is a planar mesh structure. It consists of two regions: solid strip regions and open window regions. The first raised strips 32 and second raised strips 33 are solid strips formed by first yarns looped together, arranged alternately. The ventilation holes 31 are open regions surrounded by the raised strips, where no yarn is present, forming through-holes extending from the upper surface to the lower surface of the bottom layer 30. Figure 2The portion marked by two parallel dotted lines represents the aforementioned first raised stripe 32 and second raised stripe 33. This mesh-like bottom layer structure 30 is achieved by controlling the movement of the first yarn on the front needle bed of the warp knitting machine. For example, in a typical embodiment, at least two guide bars can be used. For instance, the first guide bar GB1 forms the longitudinal first raised stripe 32 by knitting a stable warp knitting structure (such as a warp plain weave) on a designated warp column. The second guide bar GB2 forms the second raised stripe 33 in a similar manner on other warp columns, or forms transverse reinforcing ribs by padding with warp yarns. In areas where ventilation holes 31 need to be formed, these guide bars are programmed to perform long-distance empty padding or no padding, thereby forming yarn-free through-holes in the fabric. In another embodiment, a warp knitting machine incorporating an electronic jacquard control system can be used. This system can independently control each needle according to a digital pattern design, thus enabling the knitting of fine and complex meshes using only one guide bar. This method offers greater flexibility, easily enabling the creation of ventilation holes in various shapes, sizes, and arrangements. The first yarn can be made of polyester, nylon, or, depending on functional requirements, functional yarns such as peppermint fiber or bamboo charcoal fiber.

[0037] Furthermore, referring to Figure 2 The first ridge 32 and the second ridge 33 have equal widths; the shape and size of each of the ventilation holes 31 are equal; wherein, the ratio of the maximum dimension of any ventilation hole 31 on its extended plane to the width of the first ridge 32 or the second ridge 33 ranges from 1:1 to 2:1. Specifically, the grid of the bottom layer 30 has a regular geometric shape. The first ridge 32 and the second ridge 33 each have a constant width along their extension direction. All ventilation holes 31 have the same shape and size within a single pattern cycle. The ratio of the longest dimension of any ventilation hole 31 on its plane to the width of the ridge immediately adjacent to it is controlled between 1:1 and 2:1. This precise size and proportion relationship is achieved by designing the padding pattern in the warp knitting machine programming software. The width ratio can be controlled by precisely setting the number of stitches used to form the ridges and the number of stitches used to form the ventilation holes 31 within a complete pattern cycle. For example, if we set the yarn to knit 10 stitches to form a raised stripe and then leave 10 to 20 stitches empty to form a ventilation hole 31, a ratio of 1:1 to 1:2 can be achieved. The shape of the ventilation hole 31 is also determined by the design of the yarn padding pattern.

[0038] Reference Figure 2The ventilation hole 31 has a larger longitudinal dimension than its transverse dimension in the fabric. Specifically, the ventilation hole 31 has a longitudinally elongated shape, such as an ellipse or rectangle. Its dimension along the length of the fabric is greater than its dimension along the width of the fabric. This longitudinally elongated and transversely narrow ventilation hole 31 shape can be achieved during the knitting process by controlling the dimensional relationship between the longitudinal (weave direction) and transverse (loop direction) dimensions within a pattern cycle. On a warp knitting machine, by setting the number of rows of the pattern cycle to be greater than the number of stitches it occupies, a longer longitudinal hole can be knitted.

[0039] Furthermore, the ratio of the width of the first ridge 32 and the second ridge 33 to the diameter of the first yarn is greater than 10. Specifically, each ridge has a flat, strip-like structure. It is formed by multiple strands of the first yarn arranged side by side and bound together by a knitted loop structure. This makes the surface of the ridge smooth and has a certain width, which is more than 10 times the diameter of the first yarn that constitutes it. To achieve this strip-like ridge, during the yarn threading process, multiple first yarns need to be combined into one strand and threaded into the same guide needle, or multiple yarns need to be threaded into multiple adjacent guide needles and made to perform the same yarn-laying movement. In this way, during knitting, these multiple yarns will be arranged closely side by side, forming a flat, strip-like structure with the required width.

[0040] Preferably, the height of the connecting layer 20 is greater than the sum of the thicknesses of the bottom layer 30 and the top layer 10. Specifically, the structure of the connecting layer 20 is a three-dimensional array composed of independent pillars. These pillars are single third yarns. One end of each pillar is connected to a protrusion on the bottom layer 30, and the other end is connected to the fabric surface of the top layer 10, thereby forming a uniformly high gap space between the two layers. The height of this gap, i.e., the length of the connecting yarn, is constant throughout the fabric. The height of the connecting layer 20 is determined by the physical distance between the front and rear needle beds on the double needle bed warp knitting machine. During the equipment debugging phase, the distance between the two needle beds is set to a relatively large value through mechanical adjustment, for example, it can be directly set to 2.5 mm or 3 mm, thereby creating a three-dimensional space with a preset height. Of course, the height of the connecting layer 20 cannot be too large; a suitable range is a ratio of 1 to 1.5 to the sum of the thicknesses of the bottom layer 30 and the top layer 10.

[0041] The second and third yarns are composed of core-spun fibers, with the core layer of the core-spun fiber made of polybutylene terephthalate (PET) and the sheath layer made of polyester. Therefore, the connecting layer 20 formed by the third yarn is also transparent, further enhancing the fabric's transparency. Specifically, the cross-section of the fibers used in the second and third yarns is a concentric core-sheath structure. The core layer, located at the center of the fiber, is a solid cylinder made of PBT polymer. The sheath layer is a uniformly thick annular layer that completely encloses the core layer, made of highly transparent PET polymer. A physical interface exists between the core layer and the sheath layer, and they are tightly bonded. The PBT core layer provides elasticity and fatigue resistance, while the transparent PET sheath layer achieves the yarn's transparent visual effect. The yarn is manufactured in two steps: first, core-spun fibers, serving as the basic unit, are manufactured through a composite spinning process. During preparation, high-transparency polyester (PET) chips are prepared as the sheath material, and polybutylene terephthalate (PBT) chips are prepared as the core material. Two molten polymers are simultaneously extruded using a core-sheath composite spinneret to form a composite fiber with a PET sheath and a PBT core. The PET sheath imparts transparency to the fiber, while the PBT core provides elasticity and fatigue resistance. Multiple strands of these core-spun fibers are then bundled, stretched, and set to form a final multifilament yarn. For example, a 75D / 36F yarn indicates that it consists of 36 individual core-spun fibers.

[0042] Furthermore, the surface layer 10 is woven from the second yarn with a transverse density of 12 to 13 loops / cm and a longitudinal density of 12 to 13 loops / cm. Specifically, the structure of the surface layer 10 is a uniform, fine, low-density plain weave or similar warp-knitted structure. It consists of regularly arranged micro-loops formed by the second yarn. These loops are arranged regularly, with 12 to 13 loop rows per centimeter in the width direction of the fabric and 12 to 13 loop rows per centimeter in the length direction. This specific low-density structure creates a large number of uniformly distributed micro-gaps between the yarns, thus giving the surface layer 10 excellent light transmittance and breathability. The density of the surface layer 10 is achieved through precise settings of the warp knitting machine parameters. The transverse density is determined by the machine's needle gauge. The longitudinal density is controlled by adjusting the yarn feed and the tension of the fabric take-up and take-up mechanism. In production, by setting a precise yarn feeding rate and coordinating with appropriate take-up tension, the final density of the woven surface layer 10 fabric can be stabilized within the range of 12 to 13 loops / cm after finishing and shaping.

[0043] This embodiment involves a highly breathable and durable fabric that improves upon the poor breathability and heavy appearance of existing double-needle bed warp-knitted fabrics. The problem with existing double-needle bed warp-knitted fabrics stems from their multi-layered structure constructed with high-density yarns, which obstructs light penetration and airflow. In this solution, the ventilation holes 31 penetrating the bottom layer 30 constitute a macroscopic physical channel for air to enter the fabric. Their size is much larger than the natural pores between fibers in traditional fabrics, significantly reducing air resistance. Air entering the fabric is buffered and diffused within the three-dimensional space created by the connecting layer 20, and ultimately dissipates to the outside through the surface layer 10, which is sparsely woven from transparent second yarns. Furthermore, because the surface layer 10 uses transparent second yarns, light is allowed to penetrate it, revealing the internal structure of the connecting layer 20 and the bottom layer 30. Since the third yarn in the connecting layer 20 extends along the thickness direction of the fabric, the ventilation holes 31 in the bottom layer 30 are easily visible. This results in an overall breathable appearance for the fabric. However, transparent yarns generally have low physical strength, and the folding resistance of fabrics using transparent yarns cannot meet the requirements. This solution specifically uses multifilament yarn in the connecting layer 20. Physically, multifilament yarn is composed of multiple strands of fine denier filaments, and its overall bending stiffness is much lower than that of monofilaments of the same cross-sectional area. When the fabric is bent, this low-stiffness multifilament connecting yarn can bend easily and gently, rather than generating rigid resistance and accumulating stress like high-stiffness monofilaments. This makes the bending action of the entire fabric extremely smooth and flexible, and effectively avoids fatigue breakage of the connecting yarn during repeated folding, thus ensuring durability. Furthermore, by setting the mass of the connecting layer 20 per unit area to be less than that of the bottom layer 30 and the top layer 10, the fabric can achieve a lightweight and soft connection in the connecting layer 20, allowing the entire fabric to absorb and disperse stress through flexible deformation. Therefore, this fabric has excellent properties of being lightweight, transparent, and having good folding resistance.

[0044] The foregoing description of the specifications and embodiments is intended to explain the scope of protection of this utility model, but does not constitute a limitation on the scope of protection of this utility model. Modifications, equivalent substitutions, or other improvements to the embodiments of this utility model or a portion thereof that can be obtained by those skilled in the art through logical analysis, reasoning, or limited experimentation, based on the teachings of this utility model or the foregoing embodiments, should all be included within the scope of protection of this utility model.

Claims

1. A highly breathable and durable fabric, characterized in that, include: The bottom layer (30) is woven from the first yarn and has multiple vent holes (31) that extend through its thickness on the extended plane. The outer layer (10) is woven from a transparent second yarn; and A connecting layer (20) is formed by a third yarn connecting the bottom layer (30) and the top layer (10) in a vertical direction, and the third yarn is a multifilament yarn; Within a unit area avoiding the location of the vent (31), the mass of the connecting layer (20) is less than the mass of the bottom layer (30) and the top layer (10).

2. The highly breathable and fold-resistant fabric as described in claim 1, characterized in that, The bottom layer (30) includes a plurality of first convex strips (32) woven along a first direction and a plurality of second convex strips (33) woven along a second direction intersecting the first direction, wherein the ventilation holes (31) are formed between adjacent first convex strips (32) and second convex strips (33).

3. The highly breathable and fold-resistant fabric as described in claim 2, characterized in that, The widths of the first protrusion (32) and the second protrusion (33) are equal; the shapes and sizes of each of the vent holes (31) are equal; wherein the ratio of the maximum size of any of the vent holes (31) on its extended plane to the width of the first protrusion (32) or the second protrusion (33) is in the range of 1:1 to 2:

1.

4. The high-permeability and fold-resistant fabric as described in claim 3, characterized in that, The ventilation hole (31) is larger in the longitudinal direction of the fabric than in the transverse direction.

5. A highly breathable and fold-resistant fabric as described in any one of claims 2 to 4, characterized in that, The ratio of the width of the first protrusion (32) and the width of the second protrusion (33) to the diameter of the first yarn is greater than 10.

6. The high-permeability and fold-resistant fabric as described in claim 1, characterized in that, The height of the connecting layer (20) is greater than the sum of the thicknesses of the bottom layer (30) and the top layer (10).

7. The highly breathable and fold-resistant fabric as described in claim 1, characterized in that, The fibers of the second and third yarns are core-spun fibers, wherein the core layer of the core-spun fiber is made of polybutylene terephthalate and the sheath layer is made of polyester.

8. The high-permeability and fold-resistant fabric as described in claim 1, characterized in that, The surface layer (10) is woven from the second yarn with a transverse density of 12 to 13 loops / cm and a longitudinal density of 12 to 13 loops / cm.

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