Sectional braid and manufacturing process

Abstract

The invention discloses a sectional type braid and a manufacturing process, and the sectional type braid comprises an elastic section; the rigid section is connected to the elastic section and comprises a first side shoelace body and a second side shoelace body, an opening is formed between the first side shoelace body and the second side shoelace body, the opening is filled with a rigid material, the two sides of the rigid material are driven to be attached to the first side shoelace body and the second side shoelace body respectively, and the first side shoelace body and the second side shoelace body are fixed at the temperature of 110-180 DEG C; and fixing the first side shoelace body, the rigid material and the second side shoelace body 10S-20S through hot melting. According to the technical scheme, the integral appearance consistency of the braid is kept, meanwhile, the local elasticity can be accurately controlled, the opening difference between the rigid section and the elastic section can reach 50%-150% and far exceeds the limitation of 20%-50% in the traditional process, and the problem that the shoulder straps of the underwear slip off is effectively solved; from the aspect of process, the scheme adopts a conventional weaving machine for weaving and is combined with post-processing hot-melting lamination, so that the dependence of the traditional segmented braid on special equipment is simplified, and the production efficiency is improved by more than 30%.

Description

Technical Field

[0001] This invention relates to the field of webbing technology, and in particular to a segmented webbing and a manufacturing process for a segmented webbing. Background Technology

[0002] Traditional elastic webbing typically employs a uniform elasticity design, which cannot meet the needs of locally differentiated elasticity. Existing technologies have attempted to achieve elasticity differences through segmented weaving or splicing processes, but these still suffer from the following technical limitations: 1. Poor appearance consistency: The weave, color, thickness, and width of segmented fabrics vary significantly, affecting aesthetics. For example, shoulder straps with traditional stitching are uneven due to uneven seams, resulting in an uneven surface and easy breakage at the seams.

[0003] 2. Functional limitations: The opening ratio difference of traditional processes is only 20%-50%, which cannot achieve the extreme difference between high elasticity and zero elasticity, and it is difficult to meet the needs of large cup bras for high support in the front section and high elasticity in the back section of the shoulder straps.

[0004] 3. Complex process: Existing technology requires special looms to adjust parameters such as spandex feed rate and weft density, or to splice webbing with different elasticities by sewing, resulting in low production efficiency and high cost.

[0005] 4. Insufficient structural stability: Stress concentration is prone to occur at the segmented connection points, leading to deformation or breakage, poor connection reliability, and unstable elastic performance. Summary of the Invention

[0006] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes a segmented webbing, which adopts a simplified production process of conventional equipment weaving + hot melt bonding, eliminating the appearance differences of traditional processes and achieving visual uniformity in structure, color, thickness, and width. In addition, it adopts a pocket structure + non-elastic filling design, and the opening ratio difference can reach 50%-150%, which significantly improves product performance and achieves a production efficiency increase of more than 30%, while taking into account both functionality and aesthetics.

[0007] The present invention also proposes a manufacturing process applicable to the above-mentioned segmented webbing.

[0008] A segmented webbing according to the present invention comprises: Elastic segment; A rigid segment is connected to the elastic segment. The rigid segment includes a first side belt and a second side belt, with an opening formed between the first side belt and the second side belt. A rigid material is filled into the opening, and the two sides of the rigid material are driven to adhere to the first side belt and the second side belt respectively. The first side belt, the rigid material, and the second side belt are heat-fused and fixed at a temperature of 110℃-180℃ for 10S-20S.

[0009] The segmented webbing of the present invention has at least the following beneficial effects: It employs a structure connecting elastic and rigid segments, wherein the rigid segment is filled with rigid material through an opening formed by the first and second side straps, and is firmly bonded through a heat-sealing process. This allows the webbing to maintain overall aesthetic consistency while achieving precise control of local elasticity. The difference in opening between the rigid and elastic segments can reach 50%-150%, far exceeding the 20%-50% limitation of traditional processes. The stark contrast between the zero elasticity of the rigid segment and the high elasticity of the elastic segment effectively solves the problem of bra strap slippage, making it particularly suitable for support needs in large cup sizes or sports settings. Furthermore, from a technological perspective, this solution uses conventional loom weaving combined with post-processing heat-sealing, simplifying the reliance on special equipment in traditional segmented webbing and increasing production efficiency by over 30%. It combines functionality and aesthetics, and its structural design can be flexibly adapted to different application scenarios, such as adjusting the length ratio or position of the rigid segment, providing a cost-effective solution for bra straps, sportswear, and other fields.

[0010] According to some embodiments of the present invention, a segmented webbing is provided, wherein the rigid material is a rigid fabric or rigid cloth, and hot melt adhesive film material is provided on both sides of the rigid material.

[0011] According to some embodiments of the present invention, a segmented webbing has an opening that is a pocket-shaped structure.

[0012] According to some embodiments of the present invention, a segmented webbing is provided in which the rigid material, the first side webbing, and the second side webbing have equal widths.

[0013] According to some embodiments of the present invention, a segmented webbing is provided, wherein there are multiple elastic segments and rigid segments, and the elastic segments and rigid segments are arranged alternately.

[0014] According to some embodiments of the present invention, a segmented webbing is provided at the connection between the elastic segment and the rigid segment to indicate the cutting position and / or the opening value.

[0015] According to some embodiments of the present invention, a segmented webbing has the marking structure disposed on the side in contact with the skin.

[0016] According to some embodiments of the present invention, a segmented webbing is provided at both ends of the rigid segment, and the closed areas are located at the connection between the rigid segment and the elastic segment.

[0017] According to some embodiments of the present invention, in a segmented webbing, the length of the closed area is 2mm-3mm.

[0018] According to the manufacturing process described in this invention, applied to a segmented webbing of this invention, the manufacturing process includes the following steps: Weaving process: The weaving process is carried out by using a loom to form alternating elastic and rigid sections. A pocket-shaped opening is reserved between the first and second sides of the rigid section, and a 2mm-3mm closed area is reserved at the connection. Filling process: After weaving, rigid material covered with hot melt adhesive film on both sides is cut to the same width as the opening and filled into the opening; Hot melt bonding: After filling, hot press at 110℃-180℃ for 10S-20S to bond the rigid material with the first and second side belts to form an inelastic rigid segment. Post-processing: After hot melt bonding, the connection between the elastic and rigid sections is marked and processed, and the webbing size is stabilized through a heat setting process.

[0019] The manufacturing process described in this invention has at least the following beneficial effects: conventional equipment is used in the weaving stage, reducing production costs; rigid materials are cut to the same width in the filling stage to improve bonding accuracy; precise temperature control in the hot-melt stage ensures bonding strength; the post-treatment stage stabilizes dimensions and marks functional sections through heat setting; and overall, efficient mass production is achieved.

[0020] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0021] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which: Figure 1 This is a schematic diagram of a segmented webbing structure according to an embodiment of the present invention; Figure 2 This is an exploded view of a rigid material in a segmented webbing according to an embodiment of the present invention; Figure 3 This is a flowchart illustrating a manufacturing process for a segmented webbing applied in an embodiment of the present invention.

[0022] Explanation of icon numbers: Elastic segment 100; Rigid section 200; Opening 201; Enclosed area 202; First side belt 210; Second side belt 220; Rigid materials 300; hot melt adhesive film 310. Detailed Implementation

[0023] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0024] In the description of this invention, it should be understood that the orientation descriptions, such as up, down, front, back, left, right, etc., are based on the orientation or positional relationship shown in the accompanying drawings. They are 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 limiting this invention.

[0025] In the description of this invention, "several" means one or more, "more than" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. The use of "first" and "second" in the description is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0026] In the description of this invention, unless otherwise explicitly defined, terms such as "set up," "install," and "connect" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this invention in conjunction with the specific content of the technical solution.

[0027] In the description of this invention, the terms "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0028] Traditional elastic webbing typically employs a uniform elasticity design, which cannot meet the needs of locally differentiated elasticity. Existing technologies have attempted to achieve elasticity differences through segmented weaving or splicing processes, but these still suffer from the following technical limitations: 1. Poor appearance consistency: The weave, color, thickness, and width of segmented fabrics vary significantly, affecting aesthetics. For example, shoulder straps with traditional stitching are uneven due to uneven seams, resulting in an uneven surface and easy breakage at the seams.

[0029] 2. Functional limitations: The opening ratio difference of traditional processes is only 20%-50%, which cannot achieve the extreme difference between high elasticity and zero elasticity, and it is difficult to meet the needs of large cup bras for high support in the front section and high elasticity in the back section of the shoulder straps.

[0030] 3. Complex process: Existing technology requires special looms to adjust parameters such as spandex feed rate and weft density, or to splice webbing with different elasticities by sewing, resulting in low production efficiency and high cost.

[0031] 4. Insufficient structural stability: Stress concentration is prone to occur at the segmented connection points, leading to deformation or breakage, poor connection reliability, and unstable elastic performance.

[0032] Therefore, such as Figure 1 and Figure 2 As shown, this invention proposes a segmented webbing, which includes an elastic segment 100 and a rigid segment 200 connected to the elastic segment 100. The rigid segment 200 includes a first side webbing body 210 and a second side webbing body 220. An opening 201 is formed between the first side webbing body 210 and the second side webbing body 220. After the opening 201 is filled with rigid material 300, the first side webbing body 210, the rigid material 300 and the second side webbing body 220 are fixed. It should be noted that the structure employing the connection between the elastic segment 100 and the rigid segment 200, wherein the rigid segment 200 is filled with rigid material 300 through the opening 201 formed by the first side belt body 210 and the second side belt body 220, and a strong bond is achieved through a heat-fusion fixing process, such as 150℃-160℃ for 10S-15S, preferably 155℃ for 13S. This allows the webbing to maintain overall appearance consistency while achieving precise control of local elasticity. The opening ratio difference between the rigid segment 200 and the elastic segment 100 can reach 50%-150%, far exceeding the 20%-50% limit of traditional processes. In response, the stark contrast between the zero elasticity of the rigid section 200 and the high elasticity of the elastic section 100 effectively solves the problem of bra strap slippage, making it particularly suitable for support needs in large cup sizes or sports settings. Furthermore, from a technological perspective, this solution utilizes conventional loom weaving combined with post-processing heat fusion bonding, simplifying the reliance on specialized equipment inherent in traditional segmented webbing and increasing production efficiency by over 30%. It combines functionality and aesthetics, and its structural design can be flexibly adapted to different application scenarios, such as adjusting the length ratio or position of the rigid section 200, providing a cost-effective solution for bra straps, sportswear, and other fields.

[0033] Optionally, the elastic section 100 is made of materials such as Lycra, spandex, nylon-spandex blended mesh, TPU transparent elastic band, or Lycra fiber. The rigid material 300 is a rigid fabric or rigid cloth, such as polyester or nylon, which gives the rigid section 200 higher dimensional stability and resistance to deformation, solving the problem of local twisting caused by uneven elasticity in traditional shoulder straps. Furthermore, both sides of the rigid material 300 are coated with hot melt adhesive film 310 material, such as TPU hot melt adhesive film 310, EVA hot melt adhesive film 310, PA hot melt adhesive film 310, PES hot melt adhesive film 310, PO hot melt adhesive film 310, etc. It is easy to understand that different adhesive films require specific parameters. For example, the pressing temperature for EVA hot melt adhesive film 310 is 110℃-130℃, the pressing time is 6 s-10 s, and the thickness is 0.04 mm-0.25 mm; the pressing temperature for TPU hot melt adhesive film 310 is 120℃-150℃, the pressing time is 10 s-20 s, and the thickness is 0.05 mm-0.25 mm; the pressing temperature for PA hot melt adhesive film 310 is 150℃-180℃, the pressing time is 12 s-20 s; and the pressing temperature for PES hot melt adhesive film 310 is 140℃-160℃, the pressing time is 12 s. -18s; PO hot melt adhesive film 310 pressing temperature 130℃-160℃. The double-sided hot melt adhesive film 310 achieves dual adhesion between the rigid material 300 and the two sides of the webbing, ensuring a uniform and strong interface bonding layer is formed during the hot melt process, such as at 150℃-160℃ for 10-15 seconds. It should be noted that the use of hot melt adhesive film 310 not only improves bonding strength but also avoids the overflow or hardening problems that may occur with traditional adhesives, making the rigid section 200 less prone to delamination or detachment during long-term use. Furthermore, the hot melt process allows the hot melt adhesive film 310 to fully melt and penetrate into the gaps between the fabric fibers, forming a micro-mechanical interlocking structure. Compared to traditional sewing or ultrasonic welding, hot melt fixing avoids the friction and irritation of seams on the skin, while eliminating stress concentration at the seams, significantly improving the durability and comfort of the webbing. In addition, the seamless nature of the hot melt process maintains the consistency of the webbing's appearance, meeting the aesthetic requirements of high-end apparel.

[0034] Refer to Figure 1In some embodiments of the present invention, the opening 201 is a pocket-shaped structure, effectively preventing the rigid material 300 from falling out when inserted, providing a stable holding space for the rigid material 300, and preventing the filling material from shifting or wrinkling under stress. In other embodiments, unlike the pocket-shaped single-sided opening, the opening 201 is set with openings at both ends. In this case, the rigid material 300 needs to be accurately aligned with the position of the opening 201 and must not fall out of the opening 201. Further, in some embodiments of the present invention, the rigid material 300, the first side tape 210, and the second side tape 220 are of equal width, ensuring that the overall thickness of the webbing is uniform after heat fusion bonding, avoiding edge warping or uneven stress caused by differences in width ratio. In addition, the uniform width also ensures that the webbing is heated and stressed evenly during dyeing and finishing processes, reducing the risk of color difference or deformation, which is especially suitable for applications requiring high-precision alignment of patterns, such as bra shoulder straps. Furthermore, the equal width design simplifies the cutting process of the filling material and reduces production costs.

[0035] Refer to Figure 1 In some embodiments of the present invention, closed regions 202 are provided at both ends of the rigid segment 200, and the closed regions 202 are located at the connection between the rigid segment 200 and the elastic segment 100. For example, the closed regions 202 are formed into a high-density barrier through a dense weaving or hot-pressing process, effectively preventing the adhesive from seeping into the elastic segment 100 when the rigid segment 200 is hot-melted, thus avoiding damage to the elastic properties. Optionally, the length of the closed region 202 is 2mm-3mm, minimizing material waste while ensuring sealing. In addition, the design of the closed region 202 also enhances the tear resistance at the connection, preventing webbing delamination caused by repeated stretching, and is especially suitable for sports underwear used at high frequencies.

[0036] In some embodiments of the invention, multiple elastic segments 100 and rigid segments 200 are arranged alternately, achieving a gradient support force distribution along the length of the webbing. For example, in a bra shoulder strap, the rigid segment 200 near the cup provides stable support, the middle elastic segment 100 adapts to shoulder movement, and the end rigid segment 200 enhances the connection with the back clasp. This design significantly reduces the probability of shoulder strap slippage, while dispersing localized stress and extending service life. Furthermore, the alternating arrangement allows for flexible tailoring according to the user's body shape, improving product adaptability.

[0037] In some embodiments of the present invention, a marking structure is provided at the connection between the elastic segment 100 and the rigid segment 200 to indicate the cutting position and / or opening value. Optionally, the marking structure, such as color markings, indentations, or laser engravings, provides intuitive operation guidance for users or production personnel, ensuring cutting accuracy and functional segment retention rate. For example, bra shoulder straps can be precisely cut according to cup size, avoiding insufficient support caused by incorrect cutting of the elastic segment 100. Furthermore, the opening value marking can also guide users to adjust the shoulder strap length, optimizing wearing comfort, especially suitable for scenarios requiring dynamic adjustment such as sports bras. Optionally, the marking structure is located on the side in contact with the skin, avoiding visual interference on the appearance surface through hidden marking. For example, screen-printed markings are not easily worn by clothing friction on the skin-contact side, ensuring long-term legibility. In addition, the markings on the skin-contact side will not conflict with external decorative elements, satisfying the design freedom of fashion apparel.

[0038] Refer to Figure 3 The manufacturing process according to an embodiment of the present invention is applied to a segmented webbing according to an embodiment of the present invention, wherein the manufacturing process includes the following steps: S100, Weaving process: The alternating elastic section 100 and rigid section 200 are woven by a loom. A pocket-type opening 201 is reserved between the first side belt 210 and the second side belt 220 of the rigid section 200, and a 2mm-3mm closed area 202 is reserved at the connection. S200, Filling process: After weaving, the rigid material 300 covered with hot melt adhesive film 310 on both sides is cut to the same width as the opening 201 and filled into the opening 201; S300, Hot melt bonding: After filling, hot press at 110℃-180℃ for 10S-20S to bond the rigid material 300 with the first side belt 210 and the second side belt 220 to form an inelastic rigid segment 200. S400, Post-processing: After hot melt bonding, the connection between the elastic section 100 and the rigid section 200 is marked and processed, and the webbing size is stabilized by heat setting process.

[0039] The process involves using conventional equipment in the weaving stage to reduce production costs; improving bonding accuracy by cutting rigid materials to a uniform width of 300mm in the filling stage; ensuring bonding strength through precise temperature control in the hot-melt stage; and stabilizing dimensions and marking functional sections through heat setting in the post-treatment stage. Overall, this process achieves efficient mass production.

[0040] Other components and operations of the manufacturing process according to embodiments of the present invention are known to those skilled in the art and will not be described in detail here.

[0041] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.

Claims

1. A segmented webbing, characterized in that, include: Elastic segment; A rigid segment is connected to the elastic segment. The rigid segment includes a first side belt and a second side belt, with an opening formed between the first side belt and the second side belt. A rigid material is filled into the opening, and the two sides of the rigid material are driven to adhere to the first side belt and the second side belt respectively. The first side belt, the rigid material, and the second side belt are heat-fused and fixed at a temperature of 110℃-180℃ for 10S-20S.

2. The segmented webbing according to claim 1, characterized in that: The rigid material is a rigid fabric or rigid cloth, and hot melt adhesive film material is provided on both sides of the rigid material.

3. A segmented webbing according to claim 1, characterized in that: The opening has a pocket-shaped structure.

4. A segmented webbing according to claim 1, characterized in that: The rigid material, the first side belt, and the second side belt have equal widths.

5. A segmented webbing according to claim 1, characterized in that: There are multiple elastic segments and rigid segments, and the elastic segments and rigid segments are arranged alternately.

6. A segmented webbing according to claim 1, characterized in that: A marking structure is provided at the connection between the elastic segment and the rigid segment to indicate the cutting position and / or opening value.

7. A segmented webbing according to claim 6, characterized in that: The marking structure is located on the side that comes into contact with the skin.

8. A segmented webbing according to claim 1, characterized in that: The rigid segment has closed areas at both ends, and the closed areas are located at the connection between the rigid segment and the elastic segment.

9. A segmented webbing according to claim 8, characterized in that: The length of the enclosed area is 2mm-3mm.

10. The manufacturing process, characterized by: Applied to a segmented webbing as described in any one of claims 1 to 9; the manufacturing process includes the following steps: Weaving process: The loom is used to weave alternating elastic and rigid sections. A pocket-shaped opening is reserved between the first and second sides of the rigid section, and a 2mm-3mm closed area is reserved at the connection. Filling process: After weaving, rigid material covered with hot melt adhesive film on both sides is cut to the same width as the opening and filled into the opening; Hot melt bonding: After filling, hot press at 110℃-180℃ for 10S-20S to bond the rigid material with the first and second side belts to form an inelastic rigid segment. Post-processing: After hot melt bonding, the connection between the elastic and rigid sections is marked and processed, and the webbing size is stabilized through a heat setting process.

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