Hollowed-out doup woven fabric

Abstract

The utility model discloses a hollow doup woven fabric, which comprises doup woven base cloth, the fiber reinforced grids are combined on at least one surface of the doup woven base cloth, and the fiber reinforced grids form grid units by a plurality of longitudinal reinforced fiber strips and a plurality of transverse reinforced fiber strips which are mutually orthogonally arranged; the at least one covering film layer is compounded with the doup woven base cloth and the fiber reinforced grids to form an integrated structure; the hollow-out areas penetrate through the doup woven base cloth and the at least one covering film layer, and each hollow-out area is uniformly distributed in a single grid unit of the fiber reinforced grid; and the edge reinforcing units surround and are fixedly connected to the whole periphery of each hollow area in a strip shape. According to the woven fabric, the hollow characteristic can be kept, and meanwhile the overall structural strength and durability of the fabric are remarkably improved.

Description

Technical Field

[0001] This utility model relates to the field of woven fabric technology, specifically to a hollow heddle woven fabric. Background Technology

[0002] Twisted warp weaving, by controlling the intertwining of warp yarns, gives woven fabrics a unique appearance and structural characteristics. Among these, colored twisted heddle woven fabrics, utilizing the combination of colored warp yarns and twisted warp weaving techniques, can create woven fabrics with special textures and rich color effects, showing promise for applications in clothing, home textiles, and some specialized fields. To further expand the functionality or aesthetic expression of such fabrics, designers sometimes introduce openwork designs into the structure of colored twisted heddle woven fabrics. While this openwork structure can bring effects such as breathability, lightweighting, or specific visual patterns, it also poses challenges to the physical properties of the fabric itself. Specifically, in the openwork areas and their edges, the integrity of the fabric structure is disrupted, the arrangement of warp and weft yarns becomes sparse, and the interaction force between the yarns weakens. This localized reduction in yarn density directly leads to a decrease in the mechanical properties of the fabric in the openwork areas. When the fabric is subjected to external forces, especially under tensile or tearing stress, the edges of the openwork structure often become stress concentration points, easily causing yarn slippage and breakage, leading to tearing or permanent deformation of the fabric. Utility Model Content

[0003] The purpose of this invention is to overcome the aforementioned defects or problems in the prior art and to provide a hollowed-out heddle woven fabric that can significantly improve the overall structural strength and durability of the fabric while maintaining the hollowed-out features.

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

[0005] Technical Solution 1: A perforated heddle-woven fabric, comprising: a heddle-woven base fabric; a fiber-reinforced mesh, the fiber-reinforced mesh being bonded to at least one surface of the heddle-woven base fabric, the fiber-reinforced mesh being composed of a plurality of longitudinal reinforcing fiber strips and a plurality of transverse reinforcing fiber strips arranged orthogonally to form a mesh unit; at least one covering film layer, the covering film layer being integrated with the heddle-woven base fabric and the fiber-reinforced mesh into an integrated structure; a plurality of perforated areas, the perforated areas penetrating the heddle-woven base fabric and the at least one covering film layer, each of the perforated areas being disposed within a single mesh unit of the fiber-reinforced mesh; and an edge reinforcement unit, the edge reinforcement unit being a strip surrounding and fixed to the entire periphery of each of the perforated areas.

[0006] Technical Solution 2, based on Technical Solution 1: The fiber-reinforced mesh is symmetrically bonded to the opposite two sides of the heddle-woven base fabric.

[0007] Technical Solution 3 based on Technical Solution 2: The covering film layer consists of two layers, which are symmetrically composited on opposite sides of the heddle woven base fabric, and each covering film layer covers the fiber reinforcement mesh on its corresponding side.

[0008] Technical Solution 4 based on Technical Solution 1: The edge reinforcement unit is made of elastic material.

[0009] Technical solution five based on technical solution four: The edge reinforcement unit is a binding structure sewn around the hollow area.

[0010] Technical Solution Six based on Technical Solution One: The covering film layer is a pre-formed solid film sheet made of thermoplastic polymer material.

[0011] Technical solution seven based on technical solution one: The woven fabric further includes at least one layer of elastic mesh film, which is bonded to the outer surface of the at least one covering film layer away from the heddle woven base fabric.

[0012] Technical solution eight based on technical solution one: The composite structure between the heddle woven base fabric, the fiber reinforced mesh and the at least one covering film layer is made by hot pressing process.

[0013] Technical Solution Nine based on Technical Solution One: The geometric shape of the hollowed-out area is cross-shaped.

[0014] Based on technical solution one and technical solution ten: the outer periphery of the woven fabric is provided with an edge sealing structure, which includes an edge binding tape and a thermoplastic coating applied to the surface of the edge binding tape.

[0015] 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:

[0016] Technical solution one provides a hollowed-out heddle woven fabric, which can significantly improve the overall structural strength and durability of the fabric while maintaining the hollowed-out features.

[0017] The heddle-woven base fabric serves as the foundation layer, providing the basic textile structure and form for the entire fabric. A fiber-reinforced mesh, integrated onto at least one surface of this base fabric, consists of orthogonally arranged longitudinal and transverse reinforcing fiber strips, forming the main load-bearing skeleton of the fabric. When the fabric is subjected to external forces, these forces are distributed along the stronger fiber strips, preventing excessive stress concentration in the partial area of ​​the base fabric, thereby improving the fabric's overall resistance to tension and tearing. Simultaneously, this mesh structure effectively inhibits the propagation of initial cracks. Based on this, at least one covering film layer is integrated with the heddle-woven base fabric and fiber-reinforced mesh into a unified structure. This integrated combination enhances the bonding strength between the layers, enabling them to collectively withstand external loads as a whole. At the same time, the covering film layer provides physical protection for the internal base fabric and fiber-reinforced mesh, improving the fabric's abrasion resistance and resistance to external environmental factors, and helping to maintain the fabric's dimensional stability during use. Furthermore, the arrangement of multiple openwork areas also plays a crucial role in enhancing the overall structural strength of the fabric. These openwork areas penetrate the woven base fabric and the covering film layer, and each openwork area is located within a single grid unit of the fiber-reinforced mesh. This means that the fiber-reinforced strips, which serve as the main load-bearing components, were not severed when the openwork structure was formed, ensuring the continuity and integrity of the fiber-reinforced mesh structure around the openwork area. Therefore, while the fabric is openworked, the macroscopic mechanical properties imparted by the fiber-reinforced mesh are preserved to the maximum extent, and externally applied stress can still be effectively transferred and dispersed through the intact fiber strips surrounding the openwork area. Moreover, the edge reinforcement unit, arranged in a strip shape, surrounds and is fixed to the entire perimeter of each openwork area. This structure directly strengthens the inherent structural weakness at the openwork edge. By binding and fixing the yarns at the openwork edge, this edge reinforcement unit effectively prevents fiber detachment and damage to the woven base fabric and covering film layer at the cut edge. At the same time, it alleviates edge stress concentration caused by the discontinuous geometry of the hollow area, thereby significantly improving the initial strength of the hollow area against tearing and the overall durability.

[0018] Therefore, the heddle-woven base fabric provides the basic carrier, the fiber-reinforced mesh constructs a strong mechanical skeleton, the covering membrane provides overall protection and promotes structural integration, the strategic placement of the openwork areas preserves the integrity of the reinforcing skeleton, and the edge reinforcement units specifically strengthen local weak points. These structural features work closely together and synergistically, enabling this openwork heddle-woven fabric to achieve significantly improved overall structural strength, tear resistance, and durability compared to traditional simple openwork fabrics, while maintaining the breathability provided by the openwork.

[0019] In technical solution two, the fiber reinforcement mesh is symmetrically bonded to the opposite two surfaces of the heddle-woven base fabric. This double-sided symmetrical reinforcement structure results in a more balanced mechanical response of the fabric when subjected to external forces. Regardless of the direction from which tensile, bending, or torsional forces are applied to the fabric, the fiber reinforcement meshes on both sides can jointly and uniformly bear and distribute the stress. This avoids the problems of uneven fabric stress, warping deformation, or easy damage in a specific direction that may result from single-sided reinforcement.

[0020] In technical solution three, the covering film layer is further defined as two layers, and these two covering film layers are symmetrically composited on opposite sides of the heddle woven base fabric. Each covering film layer covers the fiber reinforcement mesh on its corresponding side. This double-sided symmetrical covering film layer structure firstly ensures that both sides of the fabric have similar physical protective properties and chemical stability, such as abrasion resistance and impermeability. Secondly, it provides independent encapsulation protection for the fiber reinforcement mesh on both sides of the base fabric, further enhancing the durability of the entire composite structure and its adaptability to the usage environment. Furthermore, this structure creates a symmetrical "covering film layer - fiber reinforcement mesh - heddle woven base fabric - fiber reinforcement mesh - covering film layer" sandwich-like multilayer structure. By increasing the effective thickness of the fabric and optimizing the bonding state of the interlayer interfaces, the bending stiffness and overall structural stability of the fabric can be significantly improved, enabling the fabric to exhibit stronger resistance to out-of-plane loads or bending deformation.

[0021] In technical solution four, the edge reinforcement unit is specified to be made of an elastic material. Using an elastic material as the edge reinforcement unit allows it to elastically expand and contract to a certain extent when the fabric is subjected to external forces, particularly when tension or deformation occurs around the perforated area. This adaptive deformation capability effectively buffers and absorbs impact energy or stress acting on the perforated edge, preventing excessive stress concentration or cutting effects on the base fabric that might result from inconsistent deformation of rigid reinforcement materials. Furthermore, it ensures that the deformation of the edge reinforcement unit, the base fabric, and the covering film is coordinated, reducing potential interface separation or damage due to excessive differences in the elastic modulus of the materials.

[0022] In technical solution five, the edge reinforcement unit is defined as a binding structure sewn around the hollowed-out area. The binding structure, formed through the sewing process, effectively covers and restrains the loose yarns at the cut edge of the hollowed-out area, creating a neat, dense edge contour with a certain thickness and strength. The sewing thread itself also mechanically locks the edge material, enhancing the strength of the bond.

[0023] In technical solution six, the covering film is defined as a pre-formed solid film sheet made of thermoplastic polymer material. First, the definition of "pre-formed solid film sheet" indicates that the film is an independent sheet material with relatively uniform thickness and a macroscopically continuous structure that exists before being laminated onto the fabric. This ensures the consistency and controllability of its performance as a covering layer. Second, the definition of "made of thermoplastic polymer material" specifies the basic material properties of the film. Thermoplastic polymer materials typically possess good flexibility, certain mechanical strength, excellent chemical stability, and barrier properties against liquids and gases. Furthermore, these materials are easily and effectively laminated with the fabric substrate through methods such as hot pressing. Therefore, a covering film using such materials can effectively improve the overall protective performance, durability, and processing adaptability of the fabric.

[0024] In technical solution seven, the woven fabric further includes at least one layer of elastic mesh film, which is adhered to the outer surface of the at least one covering film layer away from the heddle-woven base fabric. The "elasticity" of this elastic mesh film helps improve the overall tensile recovery and flexibility of the fabric, thereby improving comfort during wear or use and its adaptability to dynamic deformation. Simultaneously, its "mesh" structure provides additional surface abrasion resistance and anti-snagging properties while maintaining a certain level of breathability.

[0025] In technical solution eight, the composite structure between the heddle-woven base fabric, the fiber-reinforced mesh, and the at least one covering film layer is manufactured using a hot-pressing process. Using a hot-pressing process for the composite of each constituent layer ensures a strong and durable physical bond between them. Under heating and pressure, especially when the covering film layer is a thermoplastic material, the material softens and flows, fully wetting and mechanically engaging with the surfaces of the heddle-woven base fabric and the fiber-reinforced mesh. After cooling and solidification, a tight, integrated structure is formed, thereby ensuring effective stress transfer between the layers and preventing delamination during use.

[0026] In technical solution nine, the geometric shape of the perforated area is defined as cross-shaped. The cross-shaped design of the perforated area not only presents a unique visual pattern but also offers structural and functional advantages. Compared to simpler geometric shapes such as circles or squares, the arm-like structure of the cross shape can, to some extent, guide the distribution path of stress within the fabric. Furthermore, for the same perforated area, the perimeter of the cross shape is relatively large, which provides more edges for gas or liquid exchange, potentially improving the fabric's breathability or moisture permeability to some extent.

[0027] In technical solution ten, the outer periphery of the woven fabric is provided with an edge-sealing structure, which includes an edge-binding tape and a thermoplastic coating applied to the surface of the edge-binding tape. The edge-binding tape first provides a neat cover and initial mechanical constraint for the cut edge of the fabric, preventing fiber detachment or delamination of the heddle-woven base fabric and various composite layers at this point. The thermoplastic coating subsequently applied to the surface of the edge-binding tape further bonds and seals the edge-binding tape to the fibers of the fabric edge more firmly through melting and curing, forming a smooth, wear-resistant, and non-loosening edge seal, thereby improving the wear resistance of the fabric edge. Attached Figure Description

[0028] 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.

[0029] Figure 1 This is a schematic diagram of the structure of the openwork heddle weaving fabric involved in the embodiment of this utility model;

[0030] Figure 2 for Figure 1 The diagram shows an exploded structural diagram of the openwork heddle weave fabric.

[0031] Figure 3 for Figure 1 The diagram shows a partially enlarged exploded view of the openwork heddle weave fabric.

[0032] Figure 4 for Figure 3 A magnified structural diagram of part A in the middle;

[0033] Figure 5 for Figure 1 The diagram shows the layered structure of the openwork heddle weave fabric.

[0034] Explanation of key figure labels:

[0035] 1. Hollowed-out heddle woven fabric; 2. Edge reinforcement unit; 3. Elastic mesh film; 4. Fiber-reinforced mesh; 5. Hollowed-out area; 6. Edge binding tape; 11. Heddle woven base fabric; 12. Covering film layer. Detailed Implementation

[0036] 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.

[0037] 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.

[0038] 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.

[0039] 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.

[0040] 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".

[0041] In the description of this utility model, unless otherwise expressly specified and limited, the terms have the following meanings:

[0042] Twill weave base fabric: refers to the underlying structure of a fabric formed using a twill weave method. In this weaving method, some or all of the warp yarns, i.e., the twill warp, are twisted together after each insertion of one or more weft yarns, thereby forming a mesh or openwork structure on the fabric surface. In this utility model, the twill weave base fabric is the basic textile layer constituting the openwork twill weave fabric.

[0043] Fiber-reinforced mesh: refers to a mesh-like structure formed by a plurality of longitudinal reinforcing fiber strips and a plurality of transverse reinforcing fiber strips arranged orthogonally and combined. This mesh structure is incorporated into the surface of a heddle-woven base fabric to improve the overall mechanical properties of the fabric, particularly its tensile and tear strength. The longitudinal and transverse reinforcing fiber strips define multiple mesh units.

[0044] Covering film: refers to one or more thin film materials that are combined with a heddle-woven base fabric and fiber-reinforced mesh through a composite process to form a multi-layered composite structure. This film is usually a pre-formed solid film sheet, which can be made of materials such as thermoplastic polymers, and is used to provide protection, enhance the overall structural integrity, or impart other specific properties to the fabric.

[0045] Perforated areas: These refer to holes or openings that penetrate the woven base fabric and the covering film layer laminated with it. The formation of these areas gives the fabric breathability or a specific patterned appearance. In this invention, the perforated areas are confined within individual grid cells of the fiber-reinforced mesh.

[0046] Edge reinforcement unit: This refers to a strip-shaped structural component that is fixed around the entire perimeter of each openwork area. The main function of this unit is to reinforce the edges of the openwork area, preventing fiber detachment, tearing, or deformation during use, thereby improving the durability of the openwork structure.

[0047] Integrated structure: refers to a stable and unified overall structure formed by tightly bonding different components such as heddle-woven base fabric, fiber-reinforced mesh, and covering film layer through specific composite processes, such as hot-pressing. In this structure, the interfaces between the constituent layers are well bonded and can work together to withstand external forces.

[0048] Thermoplastic polymer materials refer to a class of polymer materials that soften or melt when heated within a specific temperature range, and recover their original solid properties upon cooling, and this process can be repeated. Common examples include polyethylene, polypropylene, polyester, and polyurethane. In this invention, such materials can be used to prepare covering films or coatings for edge-sealing structures.

[0049] Pre-formed solid film sheets: These refer to continuous, non-porous film sheets that have been prepared with specific processes, such as blow molding, calendering, and casting, before being laminated onto the main fabric structure. This differs from coatings formed directly on a substrate.

[0050] Elastic mesh film: refers to a film with a mesh structure and inherent elastic recovery capability. Its mesh structure gives it air permeability, while the elasticity of the material allows it to recover or approach its initial state after stretching and deformation.

[0051] Composite: In the context of this utility model, it refers to the process of combining two or more materials with different properties, such as fabrics, fiber meshes, films, etc., through physical or chemical methods to form a multilayer material or structure with new comprehensive properties. For example, it can be achieved through hot pressing, bonding, etc.

[0052] Fixed connection: refers to fixing one component or material to another component or material in a relatively stable and durable manner. In this utility model, for example, edge reinforcement units are fixed to the perimeter of the hollow area, or fiber-reinforced mesh is fixed to the surface of the base fabric.

[0053] Reinforcing fiber strips: These are the basic units that make up the fiber-reinforced mesh, and are strip-shaped reinforcing materials with a certain width and length. These strips are usually made of high-strength fibers, such as glass fiber, carbon fiber, aramid fiber, or high-strength polyethylene fiber, bundled or woven together, to bear the main tensile loads.

[0054] A grid cell refers to a single, repeating unit region formed by adjacent longitudinal and transverse reinforcing fiber strips within a fiber-reinforced grid. In this invention, the hollowed-out areas are located within these grid cells.

[0055] Hot pressing process: refers to a material composite or molding process that applies heat and pressure simultaneously to cause physical or chemical changes between different material layers or within the materials themselves, thereby achieving a tight bond or forming a specific shape. In this utility model, it is used to composite a heddle-woven base fabric, a fiber-reinforced mesh, and a covering film layer into an integrated structure.

[0056] Symmetrical combination / composite: refers to two or more identical components or layers arranged and connected in a mirror manner relative to a central plane or central axis. For example, fiber-reinforced meshes are symmetrically combined on opposite sides of a heddle-woven base fabric, meaning that there are structurally and positionally corresponding fiber-reinforced meshes on both sides of the base fabric.

[0057] Edge sealing structure: refers to the structure installed on the outer perimeter of the finished openwork heddle woven fabric to protect and reinforce the edge. Its purpose is to prevent fiber fraying, delamination, or damage to the fabric edge after use or cutting.

[0058] Edge binding tape: refers to a strip-shaped material used to cover the edges of fabrics or other materials as part of the edge sealing structure. It can be webbing, nonwoven strips, or film strips, etc.

[0059] Example

[0060] This utility model embodiment relates to a hollowed-out heddle-woven fabric 1, referring to... Figure 1The openwork heddle-woven fabric 1 includes: a heddle-woven base fabric 11; a fiber-reinforced mesh 4, which is bonded to at least one surface of the heddle-woven base fabric 11, and the fiber-reinforced mesh 4 is composed of a plurality of longitudinal reinforcing fiber strips and a plurality of transverse reinforcing fiber strips arranged orthogonally to form a mesh unit; at least one covering film layer 12, which is composite with the heddle-woven base fabric 11 and the fiber-reinforced mesh 4 to form an integrated structure; a plurality of openwork areas 5, which penetrate the heddle-woven base fabric 11 and the at least one covering film layer 12, and each of the openwork areas 5 is evenly distributed inside a single mesh unit of the fiber-reinforced mesh 4; and an edge reinforcement unit 2, which is wrapped in a strip and fixed to the entire periphery of each of the openwork areas 5.

[0061] Among them, the twill weave base fabric 11 is made using a traditional twill weave process. For example, natural fibers such as cotton, linen, and silk, or chemical fibers such as polyester, nylon, and polypropylene, or blended yarns of these fibers can be used as warp and weft yarns. The warp and weft yarns are interwoven on a loom according to the twill weave pattern. The twill weave can be a simple leno weave or a more complex mesh weave to form a base fabric with a certain porosity or specific texture on the base fabric.

[0062] At least one surface of the heddle-woven base fabric 11, such as the upper surface, or more preferably, on both opposite surfaces, namely the upper and lower surfaces, is incorporating a fiber-reinforced mesh 4. This fiber-reinforced mesh 4 consists of a plurality of longitudinal reinforcing fiber strips and a plurality of transverse reinforcing fiber strips arranged orthogonally to each other, these strips overlapping or weaving to form stable mesh units. The longitudinal and transverse reinforcing fiber strips can be made of high-strength, high-modulus fiber materials, such as glass fiber bundles, carbon fiber bundles, aramid fiber bundles, or high-strength polyethylene fiber bundles. These fiber bundles can be pre-formed into flat strips of a certain width, or they can be a parallel collection of multiple yarns. The fiber-reinforced mesh 4 can be incorporated into the heddle-woven base fabric 11 in various ways. For example, the reinforcing fiber strips can be woven in as additional warp or weft yarns during the weaving of the heddle-woven base fabric 11, or after the heddle-woven base fabric 11 is woven, it can be laid and pressed after being coated with hot melt adhesive or other adhesives, or fixed by mechanical methods such as needle punching or sewing. One feasible approach is to first prepare independent fiber-reinforced mesh sheets 4, and then laminate them with heddle-woven base fabric 11.

[0063] Reference Figure 2 and Figure 5In this heddle-woven fabric, the covering film layer 12 is integrally formed with the heddle-woven base fabric 11 and the fiber reinforcing mesh 4. For example, if the fiber reinforcing mesh 4 is only disposed on one surface of the heddle-woven base fabric 11, the covering film layer 12 can cover the outside of the fiber reinforcing mesh 4; if the fiber reinforcing mesh 4 is symmetrically disposed on two surfaces of the heddle-woven base fabric 11, then preferably, the covering film layer 12 is also two layers, symmetrically composited on the outside of the two fiber reinforcing meshes 4, forming a symmetrical multilayer structure. The composite of the covering film layer 12 with the heddle-woven base fabric 11 and the fiber reinforcing mesh 4 can be achieved by hot pressing, or by laminating under normal temperature or heating conditions using a suitable adhesive.

[0064] Reference Figure 3 Multiple perforated areas 5 are provided throughout the heddle-woven base fabric 11 and at least one covering film layer 12 laminated thereto. These perforated areas 5 can have various shapes, such as circular, square, rhomboid, or similar. Figure 4 As preferred in this embodiment, the hollowed-out area 5 is a cross shape. The key is that each hollowed-out area 5 is evenly distributed within a single grid unit of the fiber-reinforced mesh 4, meaning that the boundary of the hollowed-out area 5 does not intersect with or cut off the longitudinal and transverse reinforcing fiber strips constituting the fiber-reinforced mesh 4. The hollowed-out area 5 can be formed after each layer is laminated by mechanical punching, laser cutting, or water jet cutting; alternatively, holes can be pre-formed at corresponding positions on the heddle-woven base fabric 11 and the covering film layer 12 before lamination, and then aligned during lamination.

[0065] Furthermore, the edge reinforcement unit 2 of the openwork heddle-woven fabric 1 is wrapped in a strip and fixed to the entire periphery of each openwork area 5. The edge reinforcement unit 2 can be implemented, for example, by using a pre-prepared strip of material and fixing it to the edge of the openwork area 5 by sewing, hot melt bonding or high-frequency welding.

[0066] Reference Figure 5 In a preferred embodiment, the fiber-reinforcing mesh 4 is symmetrically attached to the opposite two side surfaces of the heddle-woven base fabric 11. That is, fiber-reinforcing mesh 4 with the same structure and corresponding positions are provided on both the upper and lower surfaces of the heddle-woven base fabric 11. This can be achieved by aligning and fixing two pieces of fiber-reinforcing mesh 4 to the upper and lower surfaces of the heddle-woven base fabric 11, respectively.

[0067] More preferably, based on the aforementioned double-sided fiber-reinforced mesh 4, the covering film layer 12 consists of two layers, which are symmetrically laminated on opposite sides of the heddle-woven base fabric 11, with each covering film layer 12 covering the fiber-reinforced mesh 4 on its corresponding side. This forms a symmetrical laminated structure of "covering film layer 12 - fiber-reinforced mesh 4 - heddle-woven base fabric 11 - fiber-reinforced mesh 4 - covering film layer 12".

[0068] Reference Figure 4 In one specific embodiment, the edge reinforcement unit 2 is made of an elastic material. This elastic material can be a narrow strip woven from elastic fibers, an elastic rubber strip, a thermoplastic elastomer (TPE) extruded strip, or an elastic polyurethane strip, etc. For example, a narrow webbing woven from spandex core-spun yarn with good tensile recovery can be used, or a silicone rubber strip with a certain thickness and width can be used directly.

[0069] Reference Figure 4 Based on the edge reinforcement unit 2 being made of elastic material, a specific fixing method is that the edge reinforcement unit 2 is an edging structure sewn around the hollow area 5. Specifically, a strip made of the aforementioned elastic material can be wrapped along the edge of the hollow area 5 and sewn in place using stitches such as zigzag stitches or binding stitches. High-strength polyester or nylon thread can be used as the sewing material. Alternative fixing methods include using an elastic adhesive with good adhesion to both the elastic material and the fabric body, or, for thermoplastic elastomer materials, heat-sealing them to the hollow edge by localized heating and melting.

[0070] Reference Figure 5 In one specific embodiment, the cover film 12 is a pre-formed solid film sheet made of a thermoplastic polymer material. This thermoplastic polymer material can be polyethylene (PE) film, polypropylene (PP) film, polyethylene terephthalate (PET) film, thermoplastic polyurethane (TPU) film, or polyvinyl chloride (PVC) film, etc. These films are typically pre-formed into rolls or sheets of a certain thickness (e.g., 0.02 mm to 0.2 mm) using processes such as blow molding, calendering, or casting.

[0071] Reference Figure 1 and Figure 5In some applications, to further enhance the specific properties of the fabric, the openwork heddle-woven fabric 1 may also include at least one layer of elastic mesh film 3. This elastic mesh film 3 is bonded to the outer surface of the at least one covering film layer 12 away from the heddle-woven base fabric 11. For example, if the fabric has two covering film layers 12, the elastic mesh film 3 can be bonded to the outer surface of one or both covering film layers 12. The elastic mesh film 3 can be made of a polymer material with elastic recovery properties, such as elastic polyurethane or elastic polyolefin, and formed into a film with a mesh structure through specific molding processes (such as melt-blown stretching to create holes, embossing, etc.). Its bonding with the covering film layer 12 can be achieved by using a suitable transparent or semi-transparent elastic adhesive, or by hot-melt lamination, provided that the selected materials are compatible in terms of thermal properties. For example, a mesh film made of polyurethane elastomer can be selected, which has good abrasion resistance and elasticity.

[0072] Furthermore, the composite structure between the heddle-woven base fabric 11, the fiber-reinforced mesh 4, and the at least one covering film layer 12 is manufactured by a hot-pressing process. Specifically, the heddle-woven base fabric 11, the fiber-reinforced mesh 4 (e.g., a fiber mesh pre-impregnated with a hot-melt resin, or a dry fiber mesh used in conjunction with a hot-melt adhesive film), and the thermoplastic polymer covering film layer 12 can be stacked together in a predetermined layer order, and then placed in a hot-pressing device. The layers are held at a certain temperature (e.g., above the softening or melting point of the thermoplastic material) and pressure for a period of time to allow each layer to fully melt, wet, and bond together. After cooling, a stable integrated composite structure is formed. The temperature, pressure, and time parameters of the hot pressing need to be optimized according to the specific characteristics of the selected materials. It should be noted that the above-described processes are all conventional techniques in the art, and those skilled in the art are capable of implementing this process to obtain the openwork heddle-woven fabric 1 based on the content disclosed in this embodiment.

[0073] In this embodiment, the preferred geometric shape of the hollowed-out area 5 is cross-shaped. This shape can be achieved by designing a corresponding punching die or laser cutting path. Of course, the hollowed-out area 5 can also be other geometric shapes, such as circles, ellipses, squares, rhombuses, stars, or irregular artistic patterns, as long as it can be completely arranged inside a single grid unit of the fiber-reinforced mesh 4.

[0074] In addition, to improve the overall durability and aesthetics of the finished product, the outer periphery of the openwork heddle woven fabric 1 is provided with an edge sealing structure. This edge sealing structure includes an edge banding 6 and a thermoplastic coating applied to the surface of the edge banding 6. Specifically, a strip material with a certain strength and abrasion resistance can be selected as the edge banding 6, such as polyester webbing, nylon webbing, or a thermoplastic film strip similar in material to the covering film layer 12. This edge banding 6 is fixed to the cut edge of the openwork heddle woven fabric 1 by sewing or preliminary heat fusion. Then, a layer of thermoplastic polymer material, such as polyethylene, polyurethane, or EVA (ethylene-vinyl acetate copolymer) hot melt adhesive powder or emulsion, is coated onto the outer surface of the edge banding 6. This is then melted and leveled by heating, and after cooling, a continuous, smooth, and tightly bonded protective coating is formed on the surface of the edge banding 6, adhering tightly to the edge banding 6 and the fabric edge. Alternatively, an edge banding 6 pre-coated with hot melt adhesive can be used, and the edge sealing can be achieved directly by heat pressing.

[0075] This embodiment relates to a hollowed-out heddle woven fabric 1, which achieves the technical effect of significantly improving the overall structural strength and durability of the fabric while maintaining the hollowed-out characteristics. The heddle woven base fabric 11 serves as the foundation layer, providing the basic textile structure and form for the entire fabric. A fiber-reinforced mesh 4, bonded to at least one surface of this base fabric, consists of longitudinally and transversely arranged orthogonally arranged longitudinal and transverse reinforcing fiber strips, forming the main load-bearing skeleton of the fabric. When the fabric is subjected to external forces, these forces are distributed along the higher-strength fiber strips, avoiding excessive stress concentration in the partial area of ​​the base fabric, thereby improving the overall resistance of the fabric to tension and tearing. Simultaneously, the mesh structure effectively inhibits the propagation of initial cracks. Based on this, at least one covering film layer 12 is composited with the heddle woven base fabric 11 and the fiber-reinforced mesh 4 to form an integrated structure. This integrated combination enhances the bonding strength between the layers, enabling them to collectively bear external loads as a whole. Meanwhile, the covering membrane 12 provides physical protection for the internal base fabric and fiber-reinforced mesh 4, improving the fabric's abrasion resistance and resistance to external environmental factors, and helping to maintain the fabric's dimensional stability during use. Furthermore, the arrangement of multiple openwork areas 5 also plays a crucial role in enhancing the overall structural strength of the fabric. These openwork areas 5 penetrate the woven base fabric 11 and the covering membrane 12, and each openwork area 5 is located within a single grid unit of the fiber-reinforced mesh 4. This means that the fiber-reinforced strips, which are the main load-bearing components, are not severed when the openwork structure is formed, ensuring the continuity and integrity of the fiber-reinforced mesh 4 around the perimeter of the openwork areas 5. Therefore, while the fabric is openworked, the macroscopic mechanical properties imparted by the fiber-reinforced mesh 4 are preserved to the maximum extent, and externally applied stress can still be effectively transferred and dispersed through the intact fiber strips surrounding the openwork areas 5. Moreover, the edge reinforcement unit 2 is wrapped in a strip and fixed to the entire perimeter of each openwork area 5, directly strengthening the inherent structural weakness at the openwork edge. The edge reinforcement unit 2 effectively prevents fiber detachment and damage to the heddle-woven base fabric 11 and the covering film layer 12 at the cut edges by binding and fixing the yarns at the openwork edges. Simultaneously, it alleviates edge stress concentration caused by the discontinuous geometry of the openwork area 5, thereby significantly improving the initial tear resistance of the openwork area 5 and its overall durability. Therefore, the heddle-woven base fabric 11 provides the basic carrier, the fiber-reinforced mesh 4 constructs a strong mechanical skeleton, the covering film layer 12 provides overall protection and promotes structural integration, the strategic placement of the openwork area 5 preserves the integrity of the reinforcing skeleton, and the edge reinforcement unit 2 specifically strengthens local weak points.These structural features work closely together and synergistically, which makes the openwork heddle woven fabric 1 not only breathable due to the openwork, but also significantly improve its overall structural strength, tear resistance and durability compared to traditional simple openwork fabrics.

[0076] 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 pierced harness weave woven fabric, characterized by, include: Woven base fabric (11); Fiber-reinforced mesh (4) is bonded to at least one surface of the heddle woven base fabric (11), and the fiber-reinforced mesh (4) is composed of a plurality of longitudinal reinforcing fiber strips and a plurality of transverse reinforcing fiber strips arranged orthogonally to each other to form a mesh unit; At least one covering film layer (12) is formed into an integrated structure with the heddle woven base fabric (11) and the fiber reinforced mesh (4); Multiple hollow areas (5) penetrate the heddle woven base fabric (11) and the at least one covering film layer (12), and each hollow area (5) is arranged inside a single grid unit of the fiber-reinforced grid (4); and Edge reinforcement unit (2) is a strip that surrounds and is fixed to the entire periphery of each of the hollow areas (5).

2. The openwork healded weave fabric of claim 1, wherein, The fiber-reinforced mesh (4) is symmetrically bonded to the opposite two sides of the heddle-woven base fabric (11).

3. The openwork healded weave fabric of claim 2, wherein, The covering film layer (12) consists of two layers, which are symmetrically composited on opposite sides of the heddle woven base fabric (11), and each covering film layer (12) covers the fiber reinforcement mesh (4) on its corresponding side.

4. The openwork healded weave fabric of claim 1, wherein, The edge reinforcement unit (2) is made of elastic material.

5. The openwork healded weave fabric of claim 4, wherein, The edge reinforcement unit (2) is a binding structure sewn around the hollow area (5).

6. The openwork healded weave fabric of claim 1, wherein, The covering film (12) is a pre-formed solid film sheet made of thermoplastic polymer material.

7. The openwork healded weave fabric of claim 1, wherein, The woven fabric also includes at least one elastic mesh film (3), which is bonded to the outer surface of the at least one covering film layer (12) away from the heddle woven base fabric (11).

8. The openwork healded weave fabric of claim 1, wherein, The composite structure between the heddle woven base fabric (11), the fiber-reinforced mesh (4), and the at least one covering film layer (12) is made by a hot pressing process.

9. The openwork healded weave fabric of claim 1, wherein, The geometric shape of the hollowed-out area (5) is cross-shaped.

10. A hollowed-out heddle-woven fabric according to claim 1, characterized in that, The outer periphery of the woven fabric is provided with an edge sealing structure, which includes an edge banding tape (6) and a thermoplastic coating applied to the surface of the edge banding tape (6).

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