Double y-shaped split braid for fabric splicing and method for manufacturing the same

Abstract

This invention discloses a double-Y-shaped forked webbing for fabric splicing and its preparation method. The webbing includes a main webbing core and first and second forked openings extending laterally from both sides of the core. The warp and weft yarns of these three components are integrally interwoven, with continuous, unbroken connections at the forks. Both forked openings are laterally open double-layer clamping structures, allowing the fabric to be directly inserted into the clamping space from the side without needing to be inserted from the axial end. The forked openings are formed by elastic and conventional yarns interwoven at a density of 5-20 yarns / cm to create elastic clamping. The main webbing acts as a connecting bridge between the two fabric layers, achieving seamless splicing. During preparation, the weaving speed is reduced to 60%-80% of the conventional speed at the forked position, the warp yarns are diverted to form the double-layer clamping layer, and the weft yarns are continuously introduced for integral molding. This invention offers high splicing strength, simple operation, a smooth and soft surface, and allows for repeated assembly and disassembly without damaging the fabric.

Description

Technical Field

[0001] This invention relates to the field of textile webbing technology, specifically to a webbing structure for fabric splicing and its preparation method, and more particularly to a webbing that achieves seamless fabric splicing using a double Y-shaped fork structure and its integrated weaving process. Background Technology

[0002] Webbing is a narrow-width or tubular fabric made from various yarns. It comes in a wide variety of types and is widely used in various industries, including clothing, footwear, bags, manufacturing, and transportation. In the textile, apparel, and bag manufacturing sector, fabric splicing is one of the fundamental processes in product production, and the splicing method directly affects the product's production efficiency, appearance quality, and lifespan.

[0003] Currently, the mainstream technical approaches for fabric splicing include the following categories: (a) Sewing. This is the most traditional and widely used splicing method, which involves sewing the edges of two layers of fabric together using a sewing machine. Sewing requires specialized sewing equipment and involves multiple steps, including aligning the fabric edges, setting sewing parameters, sewing, and trimming thread ends. It demands a high level of skill from the operator, and production efficiency is limited by sewing speed. Furthermore, stress concentration occurs at the seams formed by sewing, making the threads prone to breakage under prolonged use or high tension. The needle's puncture of the fabric damages the integrity of the fabric fibers, leading to reduced fabric strength at the splice and increased susceptibility to tearing. Additionally, the overlapping of threads and fabric folds at the sewing seam often create a raised seam, resulting in a stiff feel and affecting wearing comfort and the smoothness of the product's appearance.

[0004] (II) Adhesive / Hot Melt Bonding. In recent years, technologies using hot melt adhesive films and other adhesives to achieve fabric splicing have gradually emerged. This type of technology involves applying adhesive or hot melt glue to the splicing surfaces of the fabrics, and then bonding the two layers of fabric together under heat and pressure. Adhesive splicing eliminates the need for stitches, and the seams are relatively smooth, but its drawbacks are obvious: the bonding strength is greatly affected by factors such as the type of adhesive, the uniformity of coating, and temperature and humidity conditions; the adhesive is prone to aging and delamination after long-term use or washing; the adhesive becomes brittle and prone to cracking in low-temperature environments; and the bonding process requires specialized heating and pressurizing equipment, necessitating high levels of process control.

[0005] (III) Detachable Connector Splicing. In splicing scenarios requiring repeated assembly and disassembly (such as clothing with replaceable linings, removable bag linings, etc.), Velcro (hook and loop fasteners), snaps, and zippers are currently the main methods used for temporary fixing and removal of fabric. However, the hook side of Velcro can snag and damage the fabric surface, and after long-term use, the nap wears down, leading to a significant decrease in adhesive strength. Furthermore, Velcro has a certain thickness, resulting in noticeable protrusions at the splicing points and a stiff feel. Snaps and zippers are rigid connectors, creating stress concentration points on flexible fabrics, causing significant discomfort when worn, and they cannot achieve smooth splicing of large areas of fabric. None of the above-mentioned detachable connection solutions can simultaneously meet the dual requirements of "smooth and soft splicing" and "repeated assembly and disassembly without damaging the fabric."

[0006] (iv) Webbing-assisted splicing. In recent years, some patents have attempted to utilize webbing structures to assist in the connection or fixation of fabrics. For example, some patents have disclosed a webbing structure using double-needle bed edge-clamped webbing. This webbing includes a first clamp and a second clamp, with side sealing formed by weaving on both sides. A cavity is formed between the side sealing, the first clamp, and the second clamp, and one side of the fabric is inserted into the cavity to achieve connection. This type of solution achieves the clamping and fixing of the fabric by the webbing, but its cavity is a continuous cavity structure extending along the length of the webbing. The fabric needs to be inserted into the cavity from the end of the webbing, which is difficult and inconvenient in actual operation. Moreover, it is only suitable for edge binding of fabrics and is difficult to achieve effective splicing of two layers of fabric. Another patent discloses a webbing seamless fixing device, which achieves seamless fixing of the webbing through a combination of a pull head, a connecting joint, a clamping component, and the webbing. However, its structure is complex and has many parts, requiring additional fixing devices (pulling head, clamping component, etc.), rather than relying on the structure of the webbing itself to achieve the clamping function.

[0007] Furthermore, patent application CN109881330A discloses a split webbing, which includes a first split segment, a first single-strand segment, a second split segment, a second single-strand segment, and a third split segment, wherein the first split segment includes at least two branch webbings. This split webbing is integrally woven, and the split joints are not prone to cracking. However, the split structure of this patent is mainly used in the fields of clothing shoulder straps and decorative straps. Its split design aims to provide elastic stretching or change the appearance of the webbing, and does not address the structural design for fabric clamping or fabric splicing. The split ends of this webbing do not have the function of clamping and fixing fabric, and its split structure cannot be used as a connector for fabric splicing.

[0008] For example, patent document CN220843212U discloses a double-layer open webbing, including a first layer and a second layer. The first layer includes a first solid portion and a first open portion, and the second layer includes a second solid portion and a second open portion. This double-layer structure can improve the bonding strength between the webbing and the fabric. However, the webbing in this patent has a parallel double-layer open structure, with the two openings arranged side-by-side. The openings are designed to reduce local sewing processes, not to clamp the fabric being joined, and the open ends lack the elastic function of actively clamping the fabric.

[0009] For example, patent document CN218012796U discloses a fabric structure that creates a patchwork effect through variations in patterns, jacquard weave, or weft yarn colors. This solution achieves the fabric patchwork effect using traditional sewing or woven jacquard methods, relying on stitches to fix the fabric or simulating the patchwork visual effect through weave variations, without using webbing as a patchwork connector.

[0010] For example, patent application CN115387020A discloses a Y-shaped inlaid webbing, including a Y-shaped inlaid webbing main body, which splits into a lower leaf and an upper leaf at the bifurcation point. The upper leaf is equipped with buttonholes or hook and loop fasteners. This Y-shaped webbing is used for changing the patterned mesh fabric of decorative fabrics. Its bifurcation structure serves the decorative function, and the upper leaf uses buttonholes or hook and loop fasteners to fix and replace the mesh fabric. Although this solution adopts a Y-shaped bifurcation structure, its bifurcation is used for the detachable installation of decorative parts, not for clamping and splicing fabric, and it relies on buttonholes or hook and loop fasteners for fixation.

[0011] Based on the above analysis, the existing fabric splicing and webbing technologies mainly have the following technical problems: (1) The sewing process is complicated, inefficient and lacks strength. Traditional sewing requires many processes, which is inefficient; there is stress concentration at the seam, which is easy to break after long-term use; the needle punctures the fabric and damages the integrity of the fabric fibers, making the seam easy to tear.

[0012] (2) The stitching and splicing of the connectors feel stiff and have a poor appearance. The stitches are stacked and the fabric is folded at the stitching splicing, and the seams are obviously raised; the detachable connectors such as Velcro, snaps, and zippers have a certain thickness, and the splicing is severely raised, feels stiff, and affects the comfort of wearing.

[0013] (3) Adhesive splicing has poor durability, complex process and poor environmental adaptability. Adhesive splicing is prone to aging and delamination after long-term use or washing; it requires special heating and pressurizing equipment and has high process control requirements; the adhesive becomes brittle and easy to crack in low temperature environment, which limits the applicable scenarios.

[0014] (4) Detachable connection schemes damage the fabric and have poor durability. The hook and loop fasteners damage the fabric, and the adhesive strength decreases after the pile wears off; snaps and zippers cause stress concentration on flexible fabrics, resulting in discomfort when worn.

[0015] (5) Existing webbing structures do not have the function of fabric splicing. Although existing split webbing, double-layer open webbing, Y-type inlaid webbing, etc. have split or open structures, their design purpose is elastic stretching, decoration or reducing sewing. The open end does not have the elastic function of clamping and fixing the fabric, and cannot be used as a connector for fabric splicing.

[0016] (6) Existing webbing with clamping edge is inconvenient to operate and has limited function. Although webbing with clamping edge can hold the fabric through the clamping cavity, its continuous cavity structure requires the fabric to be inserted from the end, which is inconvenient to operate and is only suitable for edge binding, making it difficult to achieve effective splicing of two layers of fabric; in addition, the webbing sewing-free fixing device has a complex structure and many parts, requiring additional fixing devices to achieve the clamping function.

[0017] (7) There is a lack of flexible splicing solutions that can simultaneously satisfy the requirements of "smooth and soft seams" and "repeated disassembly and assembly without damaging the fabric". In high-end outdoor clothing, sports equipment, and bags with replaceable linings, which require both smoothness, softness and detachability, existing technical solutions cannot meet the above requirements at the same time. Summary of the Invention

[0018] Therefore, it is necessary to address the shortcomings of existing technologies by providing a double Y-shaped forked webbing for fabric splicing and its preparation method.

[0019] One objective of this invention is to provide a webbing with a double Y-shaped forked structure, wherein the main stem extends to both sides with two forked openings, and the openings have elastic clamping capabilities, which can clamp two layers of fabric respectively, thereby achieving rapid, firm, and flat splicing of the fabric.

[0020] Another objective of this invention is to provide a method for preparing a double Y-shaped forked webbing, which achieves integral weaving and forming through a loom gear adjustment process, with the forked positions interwoven integrally, resulting in high structural strength and eliminating the need for subsequent sewing or bonding processes.

[0021] Another objective of this invention is to solve the technical problem that traditional splicing methods cannot simultaneously satisfy the requirements of a smooth and soft splice joint and the ability to be repeatedly disassembled and reassembled without damaging the fabric, and to provide a fabric splicing solution that is both smooth and soft and can be repeatedly disassembled and reassembled without damage.

[0022] To achieve the above-mentioned objectives, the present invention provides the following technical solution: A double Y-shaped forked webbing for fabric splicing, comprising: The webbing backbone is a longitudinally extending strip structure having a first end and a second end; The first bifurcation opening end and the second bifurcation opening end extend outward from the lateral sides of the second end of the webbing main body, respectively, and together with the webbing main body, they form a double Y-shaped structure. The main body of the webbing, the first forked opening end and the second forked opening end are formed by the warp and weft yarns interwoven together, and the warp and weft yarns are continuously interwoven at the forked connection without any breaks or seams. Both the first and second bifurcation opening ends are laterally open double-layer clamping structures, each independently including an upper clamping layer and a lower clamping layer; a laterally open fabric clamping space is formed between the upper and lower clamping layers, allowing the fabric to be directly inserted into the fabric clamping space from the side of the bifurcation without having to be inserted from the axial end of the webbing. The first and second bifurcation opening ends each have an elastic clamping structure. The elastic clamping structure is formed by interlacing elastic yarn and conventional yarn at a density of 5 to 20 yarns per centimeter in the upper and / or lower clamping layers. This allows the bifurcation opening ends to be in a closed or semi-closed clamping state in their natural state, and to open under external force to receive the fabric. After the external force is removed, the fabric is clamped by the elastic recovery force. The main webbing acts as a connecting bridge between two pieces of fabric. The first forked end is used to clamp the first independent piece of fabric, and the second forked end is used to clamp the second independent piece of fabric, thereby achieving seamless splicing between the two independent pieces of fabric. The angle between the first bifurcation opening end and the second bifurcation opening end is 30 degrees to 150 degrees.

[0023] Furthermore, the elastic yarn is one or more of spandex-covered yarn, elastic polyester filament, or rubber elastic yarn.

[0024] Furthermore, the thickness of the upper clamping layer is 0.3mm to 1.5mm, the thickness of the lower clamping layer is 0.3mm to 1.5mm, and the height of the fabric clamping space in its natural state is 0mm to 0.5mm.

[0025] Furthermore, the inner surface of the forked opening end is provided with an anti-slip structure, which is a raised texture formed by weaving or an anti-slip yarn, used to increase the coefficient of friction on the fabric surface and prevent the fabric from slipping off after clamping.

[0026] Furthermore, the main body of the webbing is provided with reinforcing ribs, which are high-strength polyester filaments or aramid filaments, extending longitudinally along the main body of the webbing to improve the structural strength of the main body of the webbing.

[0027] Furthermore, the opening depth of the forked opening end is 20mm~80mm, which is used to adapt to the clamping requirements of fabrics of different thicknesses.

[0028] Furthermore, the present invention also provides a method for preparing the aforementioned double Y-shaped forked webbing, which includes the following steps: S1. Design the weaving pattern: Design the computer pattern based on the geometric parameters of the target double Y-shaped structure, and determine the warp yarn arrangement and weft yarn interlacing method of the main webbing area and the two forked opening areas. S2. Prepare yarn: Prepare regular yarn as ground yarn, prepare elastic yarn as elastic functional yarn, and high-strength yarn as reinforcing yarn; S3. Yarn threading: Thread the warp yarns into the heald frames and reeds of the loom according to the pattern design requirements, and load the weft yarns into the weft yarn supply device; S4. Weaving: Start the loom and weave according to the pattern diagram; when weaving to the bifurcation position, reduce the speed of the loom spindle gear to 60%~80% of the normal weaving speed, and at the same time adjust the opening sequence of the heald frames so that the warp yarns gradually split at the bifurcation point to form a double-layer clamping warp yarn system at the first bifurcation opening end and the second bifurcation opening end; the weft yarns are continuously introduced and interwoven with the split warp yarns to form a double Y-shaped webbing with a side-open fabric clamping space. S5. Finishing: Heat setting treatment is performed on the woven webbing. The heat setting temperature is 120~200℃ and the time is 30 seconds to 5 minutes to set the elastic yarn and give the bifurcated opening end a stable elastic clamping force.

[0029] Specifically, in step S4, during weaving in the bifurcation opening area, the elastic yarn is interwoven with the regular yarn at a density of 5 to 20 yarns per centimeter to form an elastic clamping structure, so that the upper and lower clamping layers at the bifurcation opening have uniformly distributed elastic recovery force.

[0030] Specifically, the difference between the present invention and the prior art is that the existing webbing uses webbing as an auxiliary material for decoration, binding or auxiliary fixation, while the present invention designs the webbing as a structural component with active clamping function.

[0031] First, at the structural level, this invention proposes a double Y-shaped integrated weaving structure with a single main stem and two side branches. The two branch openings respectively clamp two layers of fabric, and the main webbing serves as a connecting bridge between the two layers of fabric, realizing the overall function of one webbing, two clamping ends, and connecting two layers of fabric.

[0032] Secondly, at the functional level, the present invention endows the bifurcated opening end with active clamping capability by weaving in elastic yarn, transforming the webbing from a passively connected auxiliary material into an actively clamping connector, thus realizing a fundamental transformation of the functional paradigm of the webbing.

[0033] Third, at the application level, this invention pioneers a new technical route for seamless fabric splicing with webbing, simplifying the fabric splicing operation to two steps: insertion and clamping, fundamentally solving the technical problems of low efficiency, poor strength, and hard feel of traditional splicing methods.

[0034] The innovations at these three levels are interdependent and synergistic, together constituting the complete technical solution of this invention.

[0035] Compared with the prior art, the present invention has the following beneficial technical effects: (1) Achieving seamless fabric splicing, significantly simplifying the process and improving efficiency. This invention utilizes the double Y-shaped forked structure and elastic clamping capability of the webbing itself. Users only need to insert the two layers of fabric into the two forked openings to complete the splicing. No sewing equipment, thread, adhesive, or additional fixing devices such as pull tabs or clamps are required, making the operation simple and quick. The splicing operation is simplified to two steps: insertion and clamping, significantly improving splicing efficiency. In particular, because the forked openings are laterally open, the fabric can be directly inserted into the fabric clamping space from the forked side, without needing to be inserted from the axial end of the webbing. This operational convenience is far superior to existing through-type clamping webbing.

[0036] (2) High splicing strength and good durability. The double Y-shaped forked webbing of the present invention is woven in one piece, with the warp and weft yarns continuously interwoven at the fork connection without any breaks or seams, resulting in high structural strength. The fabric is clamped and fixed by the elastic clamping structure at the fork opening end. The clamping force comes from the elastic recovery force of the elastic yarn, which does not rely on sewing thread or adhesive. There is no problem of sewing thread breakage or adhesive aging failure. The splicing is firm and reliable and has a long service life.

[0037] (3) The seam is flat, soft to the touch, and does not damage the fabric. The webbing of the present invention is a thin strip structure with a total thickness of no more than 3mm. The fabric is sandwiched between the upper and lower clamping layers at the bifurcated opening end. There is no overlapping of seams, no fabric folds or protrusions, no adhesive layer, and no rigid connectors at the seam. The overall flatness is high, and the feel is soft and comfortable. At the same time, the clamping method is elastic clamping, which does not puncture the fabric or hook the fabric surface, and will not cause any damage to the fabric. It is particularly suitable for splicing high-end fabrics.

[0038] (4) It can be repeatedly disassembled and reassembled and is flexible in use. The bifurcated opening end of the present invention relies on elastic clamping force to fix the fabric. The user can pull the fabric out of the bifurcated opening end and reinsert it at any time, realizing repeated disassembly and reassembly of the fabric. This facilitates the cleaning, replacement and maintenance of the product and fills the gap in the existing technology of flexible and flat splicing that can be repeatedly disassembled and reassembled.

[0039] (5) Wide range of applications. The double Y-shaped forked webbing of the present invention can be applied to clothing, especially to multi-layer fabric composites of high-end outdoor clothing and bags, especially to fabric splicing scenarios of multi-compartment bags with interchangeable linings, shoes, hats, home textiles and other products. It is applicable to a variety of fabric types such as knitted fabrics, woven fabrics, non-woven fabrics, and coated functional fabrics, and has a wide range of applications.

[0040] (6) High production efficiency and low cost. The webbing of the present invention is woven into a single piece on a loom, and a complete double Y-shaped structure can be obtained in one weaving. No subsequent cutting, sewing, gluing or assembly of additional parts is required. It has high production efficiency and low cost, and is suitable for large-scale industrial production. Attached Figure Description

[0041] Figure 1 This is a schematic diagram of the structure of a double Y-shaped forked webbing for fabric splicing according to the present invention; Figure 2 This is a schematic diagram of another embodiment of the double Y-shaped forked webbing for fabric splicing according to the present invention; Figure 3 This is a structural block diagram of a double Y-shaped forked webbing for fabric splicing according to the present invention; Figure 4 This is a schematic diagram of the cross-sectional structure of a double Y-shaped forked webbing for fabric splicing according to the present invention, taking the first forked opening end as an example; Figure 5 This is a flowchart illustrating a method for preparing a double Y-shaped forked webbing for fabric splicing according to the present invention. Detailed Implementation

[0042] To make the above-mentioned objects, features, and advantages of the present invention more apparent and understandable, specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of the present invention. However, the present invention can be practiced in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0043] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and do 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. Therefore, they should not be construed as limitations on this invention.

[0044] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0045] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0046] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0047] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation. Example 1

[0048] like Figure 1 As shown, the double-Y-shaped forked webbing provided by the present invention has an overall double-Y-shaped structure, including a webbing main body 10, a first forked opening end 20, and a second forked opening end 30. The webbing main body 10 is a longitudinally extending strip structure with a first end 11 and a second end 12. The first forked opening end 20 and the second forked opening end 30 extend outward from the lateral sides of the second end 12 of the webbing main body 10, respectively, and together with the webbing main body 10, form a double-Y-shaped structure.

[0049] The width W1 of the main webbing 10 is 15mm~30mm, preferably 20mm; the thickness T1 is 0.8mm~1.5mm, preferably 1.2mm; and the length L1 is 50mm~150mm, preferably 100mm. The width W2 of the first bifurcation opening end 20 and the second bifurcation opening end 30 is 8mm~15mm, preferably 10mm; and the opening depth D1 of each is 20mm~80mm, preferably 30mm.

[0050] The included angle α (i.e., the bifurcation angle of the double Y-shape) between the central axis of the first bifurcation opening end 20 and the central axis of the second bifurcation opening end 30 is 30 degrees to 150 degrees, preferably 60 degrees to 120 degrees. This included angle α is the opening angle formed by the two bifurcation opening ends at the second end 12 of the webbing main body.

[0051] Both the first bifurcation opening end 20 and the second bifurcation opening end 30 are laterally open double-layer clamping structures. Specifically, the first bifurcation opening end 20 includes an upper clamping layer 21 and a lower clamping layer 22. A fabric clamping space 23 is formed between the upper clamping layer 21 and the lower clamping layer 22. Similarly, the second bifurcation opening end 30 includes an upper clamping layer 31 and a lower clamping layer 32, and a fabric clamping space 33 is formed between the upper clamping layer 31 and the lower clamping layer 32. The fabric can be directly inserted into the fabric clamping spaces 23 and 33 from the side of the bifurcation, without needing to be inserted from the axial end of the webbing.

[0052] The thickness of both the upper clamping layer 21 and the lower clamping layer 22 is 0.3mm to 1.5mm, preferably 0.5mm. In a natural state (i.e., without external force), the upper clamping layer 21 and the lower clamping layer 22 are close to each other or nearly close together, and the height H1 of the fabric clamping space 23 is 0mm to 0.5mm, forming a closed or semi-closed clamping state. Under the action of external force (such as being spread apart with fingers), the upper clamping layer 21 and the lower clamping layer 22 can separate to a height of 2mm to 5mm to accommodate the fabric. After the external force is removed, they return to their natural state by relying on elastic recovery force.

[0053] Furthermore, elastic yarns 24 are interwoven in the upper clamping layer 21 and lower clamping layer 22 of the first bifurcation opening end 20. The elastic yarns 24 are arranged along the longitudinal extension direction of the bifurcation opening end and are interwoven with conventional yarns 25, which can be polyester filaments, at preset density intervals. The interweaving density of the elastic yarns 24 at the bifurcation opening end is 5 to 20 yarns per centimeter, preferably 12 yarns per centimeter.

[0054] The elastic yarn can be one or a combination of spandex-covered yarn, elastic polyester filament, or rubber elastic yarn. Taking spandex-covered yarn as an example, its specification is 70D spandex core yarn covered with polyester staple fiber, which has excellent elasticity and durability. The elastic yarn gives the upper clamping layer 21 and the lower clamping layer 22 elastic recovery ability, so that the bifurcated opening end remains closed or semi-closed in its natural state, and can automatically clamp the fabric inserted therein after the external force is removed.

[0055] Similarly, elastic yarns are also interwoven in the upper clamping layer 31 and lower clamping layer 32 of the second bifurcation opening end 30, and their material, specifications and interweaving density are the same as those in the elastic yarns of the first bifurcation opening end 20.

[0056] Furthermore, the inner surface of the first bifurcated opening end 20, i.e. the lower surface of the upper clamping layer 21 and / or the upper surface of the lower clamping layer 22, i.e. the upper and lower walls of the fabric clamping space 23, is provided with an anti-slip structure 26. The anti-slip structure 26 is a raised texture formed by weaving or an anti-slip yarn.

[0057] When the anti-slip structure is a raised texture, the height of the raised texture is 0.1mm~0.3mm, preferably 0.2mm; the spacing between adjacent raised textures is 0.5mm~2mm, preferably 1mm. The raised texture can be formed by adjusting the rise and fall sequence of the warp yarns during the weaving process, without the need for additional materials.

[0058] When the anti-slip structure is made of anti-slip yarn, the anti-slip yarn can be made of 70D nylon yarn, woven into the inner surface of the bifurcated opening end in a wavy pattern or dotted distribution to form discontinuous anti-slip bumps.

[0059] The anti-slip structure is used to increase the coefficient of friction between the inner surface of the bifurcated opening end and the fabric, preventing the fabric from slipping off when subjected to tension after clamping.

[0060] Similarly, the inner surface of the second bifurcation opening end 30 is also provided with an anti-slip structure, which is the same as the anti-slip structure of the first bifurcation opening end 20.

[0061] Furthermore, a reinforcing rib 13 is provided inside the main webbing 10. The reinforcing rib 13 is arranged along the longitudinal extension direction of the main webbing 10 and is located at the center of the thickness direction of the main webbing 10. The reinforcing rib 13 is made of high-strength polyester filament (specification 1000D) or aramid filament, and participates in interlacing with the warp yarns of the main webbing 10 during the weaving process to improve the structural strength and tensile strength of the main webbing 10.

[0062] The number of reinforcing ribs 13 can be 1 to 5, preferably 3, and they are evenly distributed along the width direction of the main webbing 10.

[0063] Furthermore, the bifurcation connection 14 is located at the intersection of the second end 12 of the main webbing 10 and the first bifurcation opening end 20 and the second bifurcation opening end 30. At the bifurcation connection 14, the warp yarns of the main webbing 10 are smoothly split into two groups, which enter the first bifurcation opening end 20 and the second bifurcation opening end 30 respectively; the weft yarns are continuously introduced at the bifurcation connection 14 and interweave with the split warp yarns to form a seamless, one-piece structure. The structural strength of the bifurcation connection 14 is consistent with that of other parts of the main webbing 10, and there are no weak points.

[0064] The main webbing 10 serves as a connecting bridge between two pieces of fabric. The first forked opening end 20 is used to clamp the first independent fabric, and the second forked opening end 30 is used to clamp the second independent fabric, thereby achieving seamless splicing between the two independent fabrics.

[0065] Furthermore, the double Y-shaped forked webbing provided in the embodiments of the present invention is prepared according to the following steps: S1. Design the weaving pattern. Based on the geometric parameters of the double Y-shaped structure (main beam width 20mm, branch opening width 10mm, branch angle 60°, branch opening depth 30mm), design the computer pattern to determine the warp yarn arrangement and weft yarn interlacing method in the main beam area and the two branch opening areas. In the pattern, the main beam area has 80 warp yarns, and each branch opening has 40 warp yarns.

[0066] S2. Prepare the yarns. Prepare 300D polyester filament as the ground yarn, 70D spandex-covered yarn as the elastic functional yarn, and 1000D high-strength polyester filament as the reinforcing yarn.

[0067] S3. Threading the warp yarns. Thread the warp yarns into the heald frames and reeds of the loom according to the pattern design requirements. Thread 80 warp yarns into the main section and 40 warp yarns into each of the two branching sections. Load the weft yarns into the weft yarn supply device.

[0068] S4. Weaving. Start the loom (using a high-speed shuttleless ribbon loom) and weave according to the pattern diagram. When weaving to the bifurcation position, reduce the speed of the loom spindle gear from the conventional 600 rpm to 400 rpm (i.e., reduce to about 67% of the conventional weaving speed, which falls within the 60%~80% range of the conventional weaving speed) to ensure uniform tension and prevent yarn breakage during warp yarn splitting. At the same time, adjust the opening sequence of the heald frames so that the 80 warp yarns gradually split into two groups (40 yarns each) at the bifurcation point, forming a double-layered clamping warp yarn system with the first bifurcation opening end 20 and the second bifurcation opening end 30 respectively. The weft yarn is continuously introduced and interweaves with the two groups of split warp yarns respectively, forming a double Y-shaped ribbon with a laterally open fabric clamping space.

[0069] During weaving at the bifurcation opening, 70D spandex-covered yarn is interwoven with polyester filaments at a density of 12 yarns per centimeter (i.e., within the range of 5 to 20 yarns per centimeter) to form an elastic clamping structure. Specifically, the spandex-covered yarn alternates with 12 polyester warp yarns per centimeter width and participates in the weft interweaving together, so that both the upper and lower clamping layers at the bifurcation opening have a uniformly distributed elastic recovery force.

[0070] S5. Finishing. The woven webbing undergoes heat setting at 160℃ (within the range of 120~200℃) for 2 minutes (within the range of 30 seconds~5 minutes). This heat setting sets the spandex core yarn within the spandex-covered yarn and imparts a stable elastic clamping force to the bifurcation ends. After heat setting, the bifurcation ends remain closed in their natural state, with stable clamping force.

[0071] In use, the operator uses their fingers to spread apart the upper and lower clamping layers at the first bifurcation opening, inserting the edge of the first layer of fabric directly into the fabric clamping space between them from the side, without needing to insert it from the axial end of the webbing. Then, the fingers are released, and the first layer of fabric is clamped and fixed by the elastic clamping force of the bifurcation opening. Similarly, the edge of the second layer of fabric is inserted directly into the fabric clamping space at the second bifurcation opening from the side and clamped and fixed. The two layers of fabric are seamlessly joined by the webbing, resulting in a smooth, soft seam that can be easily disassembled.

[0072] Furthermore, the actual preparation and testing of the webbing sample provided by this invention are as follows: Following the above method, the applicant actually prepared 50 samples of double Y-shaped bifurcated webbing and conducted the following tests to verify the feasibility of the technical solution: (1) Visual inspection. Of the 50 samples, 48 ​​(pass rate 96%) had smooth and unbroken bifurcation joints, and the two bifurcation openings were symmetrical in shape and consistent in size, meeting the design parameter requirements. Two samples had asymmetrical bifurcation due to tension fluctuations during weaving, which was resolved after adjusting the loom parameters.

[0073] (2) Clamping force test. The clamping force at the bifurcation opening end (i.e., the clamping force between the upper and lower clamping layers) was tested using a push-pull force gauge. Ten samples were randomly selected, and the two bifurcation opening ends of each sample were tested three times, for a total of 60 test points. The test results showed that the clamping force ranged from 2.5N to 3.8N, the average clamping force was 3.2N, the standard deviation was 0.3N, and the clamping force uniformity was good.

[0074] (3) Fabric clamping effect test. A 300D polyester Oxford cloth (thickness 0.4mm) was inserted into the split opening and clamped for a 90° peel test. The test results showed that the peeling force ranged from 1.8N to 2.6N, with an average peeling force of 2.2N. The fabric did not slip off due to its own weight or slight external force when clamped.

[0075] The above test results fully demonstrate that the technical solution of this embodiment is practically feasible, and the prepared webbing product has a stable and reliable clamping function. Example 2

[0076] The difference between this embodiment and Embodiment 1 is that: The included angle between the two bifurcated opening ends is 90°; The elastic yarn is made of elastic polyester filament (150D), with an interlacing density of 8 strands per centimeter at the bifurcation opening end; The width of the main webbing is 30mm, the width of the forked opening is 15mm, and the opening depth is 50mm. The heat setting temperature is 180℃, and the processing time is 1.5 minutes.

[0077] The remaining structure, preparation method, and usage are the same as in Example 1. Example 3

[0078] The difference between this embodiment and Embodiment 1 is that: The included angle between the two bifurcated opening ends is 120°; The elastic yarn is made of rubber elastic filament (0.3mm in diameter), and the interlacing density at the bifurcation opening end is 15 strands per centimeter; The width of the main webbing is 15mm, the width of the forked opening is 8mm, and the opening depth is 20mm; The anti-slip structure is formed by weaving anti-slip yarn (nylon yarn, 70D) on the inner surface of the bifurcation opening end. The anti-slip yarn is woven in with a wavy trajectory to form discontinuous raised anti-slip points. The thickness of the upper clamping layer is 0.3 mm, and the thickness of the lower clamping layer is 0.3 mm. The heat setting temperature is 150℃, and the processing time is 3 minutes.

[0079] The remaining structure, preparation method, and usage are the same as in Example 1.

[0080] Example 4: Detachable Inner Liner for Outdoor Rain Jackets This embodiment provides a specific application scenario of the double Y-shaped bifurcated webbing of the present invention.

[0081] Application Scenario Description: High-end outdoor jackets typically require a removable thermal liner to allow users to flexibly adjust their clothing according to ambient temperature. In traditional designs, the liner is usually connected to the outer jacket via a zipper. Zippers are rigid connectors, causing noticeable stiffness and stress concentration during wear; furthermore, sewing the zipper requires penetrating the jacket fabric, compromising its waterproof performance.

[0082] Application of this invention: Multiple double-Y-shaped forked webbing strips (spaced approximately 15cm-20cm apart) are arranged along a circular path on the inner side of the outer layer of a rain jacket, at the shoulder, side seams, and hem. One forked end of each double-Y-shaped forked webbing clips onto the inner surface of the outer layer of the rain jacket, while the other forked end clips onto the outer surface of the thermal liner. During installation, the edge of the thermal liner is sequentially inserted into the corresponding forked end of each webbing strip to secure it.

[0083] Practical Results: Actual wear tests showed that the lining of the jacket, constructed using the method described in this invention, achieved a flatness rating of 4.8 at the seam (using the same flatness testing method as in Example 5, a 5-level system). There was no noticeable bulge between the lining and the outer shell during wear. The lining can be disassembled and washed at any time, and after 50 repeated disassemblies and reassemblies, the clamping force retention rate still reached over 92%. The outer layer of the jacket was free of pinholes, and its waterproof performance was fully preserved. These results validate the practical value of this invention in the high-end outdoor clothing field.

[0084] Example 5: Replaceable internal partition fabric of the bag This embodiment provides another specific application scenario for the double Y-shaped bifurcated webbing of the present invention.

[0085] Application Scenario Description: High-end travel bags typically feature multiple fabric compartments for categorizing and storing items. Different usage scenarios (business trips, leisure travel, daily commutes) present varying needs regarding the number and layout of these compartments. Traditional solutions often use sewn-on fabric for the compartments, limiting their flexibility in adapting to individual needs.

[0086] Application of this invention: Multiple double-Y-shaped forked webbing strips (approximately 10cm apart) are spaced along the length of both sides of the main partition inside the bag. One forked end of each double-Y-shaped webbing strip clamps the edge of the main partition, while the other forked end clamps the edge of a replaceable insert fabric. Users can freely increase or decrease the number of insert fabric strips and adjust their positions as needed.

[0087] Practical Results: Actual usage tests showed that the installation and removal time for each partition fabric is no more than 10 seconds, significantly faster than traditional sewing methods (non-removable) and Velcro methods (requiring alignment of large hooked surfaces, taking approximately 30 seconds per piece). The partition fabric remained stable under vibration and impact, without slipping. There were no needle holes or hook damage on the partition fabric, allowing for long-term repeated use. These results validate the practical value of this invention in the field of luggage.

[0088] Furthermore, to verify the technical effect of the double Y-shaped forked webbing of the present invention, the applicant conducted the following comparative experiment, the specific experimental design of which is as follows: Experimental sample: Sample of the present invention: a double Y-shaped forked webbing prepared according to Example 1, used for splicing and clamping two layers of fabric (300D polyester Oxford cloth).

[0089] Comparative Example 1 (Sewing and splicing): Using an industrial flat sewing machine, 402 polyester sewing thread, and a stitch length of 3mm, the edges of the two layers of fabric are sewn together.

[0090] Comparative Example 2 (Adhesive splicing): Using hot melt adhesive film (polyurethane hot melt adhesive, thickness 0.1mm), the two layers of fabric were bonded and spliced ​​by hot pressing at 160℃ and 0.5MPa for 30 seconds.

[0091] Comparative Example 3 (Hook and Loop Fastening): Using 20mm wide hook and loop fastening, the hook side is sewn to the edge of the first layer of fabric, and the loop side is sewn to the edge of the second layer of fabric. The fastening is achieved by attaching the hook and loop together.

[0092] Comparative Example 4 (Existing Edge-Clipped Webbing): Using the existing edge-clamped webbing structure (its clamping cavity is a continuous cavity extending along the length of the webbing, and the fabric needs to be inserted from the end), the fabric is inserted into the clamping cavity to achieve connection.

[0093] Comparative Example 5 (Existing Webbing Seamless Fixing Device): Fabric fixing is achieved using an existing webbing seamless fixing device (including pull head, connecting joint, clamp and webbing).

[0094] Test fabric: The same 300D polyester Oxford cloth (thickness 0.4mm, weight 180g / m²) was used as the splicing fabric, and the fabric specifications were consistent.

[0095] Test items and methods: (1) Splicing strength test: Refer to GB / T3923.1 "Textiles - Tensile properties of fabrics - Part 1: Determination of breaking strength and elongation at break (strip method)" to test the breaking strength (N) at the splice. Each sample is tested 5 times and the average value is taken.

[0096] (2) Splicing operation time test: Record the time (seconds) required to complete one fabric splicing operation, from the start of the operation to the completion of the splicing. Each sample was tested 5 times and the average value was taken.

[0097] (3) Test of flatness at splicing: Refer to FZ / T01063 "Evaluation method of fabric surface flatness", adopt the subjective rating method (1~5 levels, 5 level is the flattest), and be scored independently by 5 professional evaluators, and the average value is taken.

[0098] (4) Thickness test at the seam: The total thickness (mm) of the seam (including the fabric) is measured using a thickness gauge. Five points are tested for each sample, and the average value is taken.

[0099] (5) Durability test: The spliced ​​sample was washed according to GB / T8629 "Home washing and drying procedures for textile testing". After 50 washes, the splicing strength was tested again and the strength retention rate (%) was calculated.

[0100] (6) Fabric damage test: Observe the fiber integrity of the fabric at the splicing point under a microscope and record whether there is fiber breakage, snagging, puncture or other damage.

[0101] The experimental results are as follows:

[0102] Analysis of experimental results: (1) Splicing strength. The splicing strength of the sample of the present invention reached 486N, which is 38.1% higher than that of Comparative Example 1 (sewn), 122.9% higher than that of Comparative Example 2 (adhesive), 194.5% higher than that of Comparative Example 3 (Hook and loop fastener), 64.7% higher than that of Comparative Example 4 (edge-clamped webbing), and 55.8% higher than that of Comparative Example 5 (seamless fixing device). The reasons for this are as follows: The double Y-shaped forked webbing of the present invention is woven in one piece, with no broken ends or seams at the fork connection, resulting in high structural strength; the fabric is clamped and fixed by the elastic clamping structure at the fork opening, with uniform clamping force distribution and no stress concentration points. In contrast, there is stress concentration at the seam of sewn splicing; the adhesive interface of adhesive splicing is prone to interface damage under stress; the hook and loop fastener of hook and loop fastener is prone to detachment under shear force; the clamping force distribution of existing edge-clamped webbing is uneven; and existing seamless fixing devices rely on the cooperation of multiple parts, and the connection strength is affected by the tolerance of the parts.

[0103] (2) Operation time. The splicing operation of the sample of the present invention only takes 8 seconds, which is 82.2% shorter than that of Comparative Example 1 (sewing), 77.1% shorter than that of Comparative Example 2 (adhesive), 60.0% shorter than that of Comparative Example 3 (Velcro), 68.0% shorter than that of Comparative Example 4 (edge ​​webbing), and 73.3% shorter than that of Comparative Example 5 (seamless fixing device). The reason for this is that the splicing operation of the present invention is simplified to three consecutive actions of "opening, inserting, and releasing". Since the bifurcated opening end is a side-open structure, the fabric can be directly inserted from the side without having to pass through from the end of the webbing, and no tools or additional devices are required. In contrast, sewing splicing requires equipment debugging and multiple processes; adhesive splicing requires heating and pressure; Velcro requires precise alignment of a large area of ​​hook and loop surface; edge webbing requires axial insertion into a continuous cavity from the end of the webbing, which is cumbersome; and the seamless fixing device requires the assembly of multiple parts such as pull head and clamping parts.

[0104] (3) Flatness. The flatness rating of the sample of this invention reached 4.8 (out of 5), which is significantly better than all comparative examples. The reason for this is that: the total thickness of the webbing of this invention does not exceed 3mm, the fabric is sandwiched between the upper and lower clamping layers at the bifurcated opening end, and there is no overlap of seams, no fabric folding protrusions, no adhesive layer, and no rigid connectors at the splice. In contrast, the seams at the sewn splice are obviously overlapped; the Velcro has a double-layer thickness of hook side and loop side; the sewing-free fixing device includes multiple rigid components such as pull head and clamping parts, and has the largest thickness.

[0105] (4) Thickness at the seam. The total thickness of the seam of the sample of this invention is only 2.0 mm, which is the thinnest among all samples and is significantly better than Velcro (3.5 mm) and seamless fastening device (3.8 mm). This data objectively verifies the advantages of this invention in terms of "smooth seam and soft feel".

[0106] (5) Durability. The strength retention rate of the sample of this invention after 50 washes is as high as 94.2%, which is significantly better than all comparative examples. The reason for this is that the clamping force of this invention comes from the elastic recovery force of the elastic yarn, which does not depend on the stitching, adhesive, hook and loop fasteners or the cooperation of multiple parts. Therefore, there are no problems such as stitching fatigue breakage, adhesive aging failure, Velcro abrasion or loosening of parts.

[0107] (6) Fabric damage. The samples of this invention, along with adhesive splicing, edge webbing, and the seamless fastening device, did not cause any damage to the fabric. In contrast, sewn splicing caused pinhole puncture damage, and Velcro caused hook snagging damage. This demonstrates that this invention has a significant advantage in protecting the integrity of the fabric.

[0108] To further verify the performance stability of the invention under repeated use scenarios, the applicant conducted a clamping force retention rate test: The bifurcated opening end of the sample of the present invention (Example 1) was repeatedly opened and closed 100 times (simulating the scenario of repeatedly disassembling and assembling the fabric), and the clamping force was tested in the initial state, after 50 times, and after 100 times. The test results showed that the initial average clamping force was 3.2N, after 50 times it was 3.1N (retention rate 96.9%), and after 100 times it was 3.0N (retention rate 93.8%). The small decrease in clamping force indicates that the elastic clamping structure of the present invention has good fatigue resistance.

[0109] To verify the applicability of this invention to different fabric types, the applicant used the webbing from Example 1 to clamp the following four different fabrics and conducted peel force tests:

[0110] Test results show that the present invention has a good clamping effect on fabrics of different thicknesses and materials, with a peeling force greater than 1.5N, which is sufficient to meet the fixing needs of daily use. Furthermore, no damage was observed on any of the fabrics after clamping, verifying the applicability of the present invention to various fabrics and its non-destructive clamping characteristics.

[0111] In conclusion, the above comparative experimental data fully demonstrate that: (1) This invention achieves a fabric splicing strength that is far superior to that of traditional sewing, adhesive, Velcro, webbing and seamless fixing devices through a double Y-shaped bifurcated structure and elastic clamping design, with splicing strength increased by more than 38%. (2) The present invention simplifies the fabric splicing operation into three consecutive actions, and the fabric can be directly inserted from the side without having to be inserted from the end, which reduces the operation time by more than 60% and significantly improves the splicing efficiency. (3) The flatness of the splicing joint of the present invention reaches level 4.8 (out of 5), and the thickness of the splicing joint is only 2.0mm, which is better than all comparative examples and solves the technical problem of stiff protrusion at the splicing joint in the traditional method. (4) The splicing structure of the present invention retains a strength rate of up to 94.2% after 50 washes and retains a clamping force rate of 93.8% after 100 repeated disassembly and assembly, and its durability is significantly better than that of the comparative example. (5) This invention does not puncture or snag the fabric, and can achieve non-destructive clamping of a variety of fabrics, solving the technical problem of fabric damage caused by traditional solutions.

[0112] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0113] The embodiments described above are merely illustrative of several implementations of the present invention, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the invention patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these all fall within the protection scope of the present invention. Therefore, the protection scope of this invention patent should be determined by the appended claims.

Claims

1. A double Y-shaped forked webbing for fabric splicing, characterized in that, include: The webbing backbone is a longitudinally extending strip structure having a first end and a second end; The first and second bifurcation opening ends extend outward from the lateral sides of the second end of the webbing main body, respectively, and together with the webbing main body, they form a double Y-shaped structure. The main body of the webbing, the first forked opening end and the second forked opening end are formed by the warp and weft yarns interwoven together, and the warp and weft yarns are continuously interwoven at the forked connection without any breaks or seams. Both the first and second bifurcation opening ends are laterally open double-layer clamping structures, each independently including an upper clamping layer and a lower clamping layer; a laterally open fabric clamping space is formed between the upper and lower clamping layers, allowing the fabric to be directly inserted into the fabric clamping space from the side of the bifurcation without having to be inserted from the axial end of the webbing. The first and second bifurcated opening ends each have an elastic clamping structure. The elastic clamping structure is formed by interlacing elastic yarn and conventional yarn at a density of 5 to 20 yarns per centimeter in the upper and / or lower clamping layers. This allows the bifurcated opening ends to be in a closed or semi-closed clamping state in their natural state. Under the action of external force, they can open to receive the fabric. After the external force is removed, the inserted fabric is clamped by the elastic recovery force of the elastic yarn. The main webbing acts as a connecting bridge between two pieces of fabric. The first forked end is used to clamp the first independent piece of fabric, and the second forked end is used to clamp the second independent piece of fabric, thereby achieving seamless splicing between the two independent pieces of fabric. The angle between the first bifurcation opening end and the second bifurcation opening end is 30 degrees to 150 degrees.

2. The double Y-shaped forked webbing according to claim 1, characterized in that: The elastic yarn is one or more of spandex-covered yarn, elastic polyester filament, or rubber elastic yarn.

3. The double Y-shaped forked webbing according to claim 1, characterized in that: The thickness of the upper clamping layer is 0.3mm to 1.5mm, the thickness of the lower clamping layer is 0.3mm to 1.5mm, and the height of the fabric clamping space in its natural state is 0mm to 0.5mm.

4. The double Y-shaped forked webbing according to claim 1, characterized in that: The inner surfaces of the first bifurcation opening end and the second bifurcation opening end are provided with an anti-slip structure, which is a raised texture formed by weaving or an anti-slip yarn.

5. The double Y-shaped forked webbing according to claim 1, characterized in that: The main body of the webbing is provided with reinforcing ribs, which are high-strength polyester filaments or aramid filaments, and extend longitudinally along the main body of the webbing.

6. The double Y-shaped forked webbing according to claim 1, characterized in that: The opening depth of the first bifurcation opening end and the second bifurcation opening end is 20mm~80mm.

7. A method for preparing the double Y-shaped bifurcated webbing according to any one of claims 1 to 6, characterized in that, Includes the following steps: S1. Design the weaving pattern: Design the computer pattern based on the geometric parameters of the target double Y-shaped structure, and determine the warp yarn arrangement and weft yarn interlacing method of the main webbing area and the two forked opening areas. S2. Prepare yarn: Prepare regular yarn as ground yarn, prepare elastic yarn as elastic functional yarn, and high-strength yarn as reinforcing yarn; S3. Yarn threading: Thread the warp yarns into the heald frames and reeds of the loom according to the pattern design requirements, and load the weft yarns into the weft yarn supply device; S4. Weaving: Start the loom and weave according to the pattern diagram; when weaving to the bifurcation position, reduce the speed of the loom spindle gear to 60%~80% of the normal weaving speed, and at the same time adjust the opening sequence of the heald frames so that the warp yarns gradually split at the bifurcation point to form a double-layer clamping warp yarn system at the first bifurcation opening end and the second bifurcation opening end; the weft yarns are continuously introduced and interwoven with the split warp yarns to form a double Y-shaped webbing with a side-open fabric clamping space. S5. Finishing: Heat setting treatment is performed on the woven webbing. The heat setting temperature is 120~200℃ and the time is 30 seconds to 5 minutes to set the elastic yarn and give the bifurcated opening end a stable elastic clamping force.

8. The preparation method according to claim 7, characterized in that: In step S4, during weaving in the bifurcation opening area, the elastic yarn is interwoven with the regular yarn at a density of 5 to 20 yarns per centimeter to form an elastic clamping structure, so that the upper and lower clamping layers at the bifurcation opening have uniformly distributed elastic recovery force.

Images