Multi-row-hole cloth belt for zipper
The zipper fabric strip with alternating rows of holes addresses the weak connection issue by increasing the contact area between zipper teeth and fabric, improving durability and reliability.
Patent Information
- Application Number
- CN202421932229.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-09
- Publication Date
- 2025-07-15
- Estimated Expiration
- 2034-08-09
AI Technical Summary
In the existing zippers, the contact area between the glue teeth and the tape body is limited, resulting in insufficient connection strength, which is easy to fall off or loosen under high load conditions.
A plurality of rows of holes are opened on the tape body, including a first row of holes and a second row of holes. The glue teeth are arranged in the alternately arranged first row of holes and second rows of holes, increasing the contact area between the glue teeth and the tape, and optionally equipped with core wires and cloth edges to enhance the fixing effect.
By increasing the contact area between the teeth and the tape and the alternating hole design, the connection strength and stability of the zipper are improved, reducing the risk of loose or falling off the teeth, and improving the durability and reliability of the zipper.
Smart Images
Figure CN223094948U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of zippers, and particularly to a multi-row hole fabric tape for zippers. Background Art
[0002] In the manufacturing process of zippers, the teeth of the zipper are often set on the fabric tape to make a complete zipper. When the teeth of the zipper are made of glue teeth, the glue teeth are injection-molded on the fabric tape. During the injection-molding process, the material of the glue teeth is heated to a molten state and penetrates into the fabric tape body, so that the glue teeth can be fixed on the fabric tape after being formed.
[0003] The connection strength between the fabric tape body and the glue teeth is a key factor to ensure the use performance of the zipper. In the prior art, the glue teeth are usually fixed on the fabric tape body by injection molding. However, this method has certain limitations because the contact area between the molten glue teeth and the fabric tape body is relatively limited. This limited contact area results in insufficient connection strength between the glue teeth and the fabric tape body, which cannot meet the requirements of high strength and high stability. Especially under high-load use conditions, the glue teeth may fall off or become loose, thus affecting the overall performance and durability of the zipper.
[0004] Therefore, it is necessary to design a new type of fabric tape, a multi-row hole fabric tape for zippers with a larger contact area between the molten glue teeth and the fabric tape, to solve the problem that the contact area between the glue teeth of the traditional zipper and the fabric tape body is relatively limited, and this limited contact area results in insufficient connection strength between the glue teeth and the fabric tape body. Summary of the Utility Model
[0005] In view of this, it is necessary to provide a multi-row hole fabric tape for zippers with a larger contact area between the molten glue teeth and the fabric tape to solve the above problems.
[0006] An embodiment of the present application provides a multi-row hole fabric tape for zippers, including:
[0007] A fabric tape body, the fabric tape body having an opening surface;
[0008] A first row of holes, a plurality of the first row of holes are opened on the opening surface, the first row of holes penetrate the fabric tape body, and the plurality of the first row of holes are arranged at equal intervals along the length direction of the fabric tape body, and a part of the glue teeth of the zipper is arranged in the first row of holes;
[0009] A second row of holes, a plurality of the second row of holes are opened on the opening surface, the second row of holes penetrate the fabric tape body, and the plurality of the second row of holes are arranged at equal intervals along the length direction of the fabric tape body, and a part of the glue teeth of the zipper is arranged in the second row of holes;
[0010] The direction parallel to the opening surface and perpendicular to the length direction of the tape body is denoted as the arrangement direction. The first row of holes and the second row of holes are arranged at intervals in the arrangement direction, and the first row of holes and the second row of holes are arranged alternately in the arrangement direction. One glue tooth is simultaneously arranged on the first row of holes and the second row of holes.
[0011] In at least one embodiment of the present application, the multi-row hole tape for a zipper further includes a core wire arranged on the tape body, and the length direction of the core wire is parallel to the length direction of the tape body.
[0012] In at least one embodiment of the present application, in the first case, the first row of holes is a square hole, and the second row of holes is a cross hole.
[0013] In at least one embodiment of the present application, the multi-row hole tape for a zipper further includes a tape edge arranged on the tape body, and the tape edge is sewn to an external object.
[0014] In at least one embodiment of the present application, in the second case, both the first row of holes and the second row of holes are cross holes.
[0015] In at least one embodiment of the present application, in the third case, both the first row of holes and the second row of holes are square holes.
[0016] In at least one embodiment of the present application, in the fourth case, both the first row of holes and the second row of holes are round holes.
[0017] In at least one embodiment of the present application, the first row of holes has a first section communicating with the opening surface and a second section communicating with the first section. The first section is located between the second section and the opening surface, and the aperture r1 of the first section and the aperture r2 of the second section satisfy the relational expression r1 < r2;
[0018] The second row of holes has a third section communicating with the opening surface and a fourth section communicating with the third section. The third section is located between the fourth section and the opening surface, and the aperture r3 of the third section and the aperture r4 of the fourth section satisfy the relational expression r3 < r4.
[0019] In at least one embodiment of the present application, the core wire has an installation curved surface bent away from the tape body, and the glue teeth of the zipper are arranged on the installation curved surface.
[0020] The multi-row perforated tape for zippers provided above has multiple rows of holes opened on the opening surface of the tape, specifically including a first row of holes and a second row of holes. Each row of holes includes multiple holes arranged at equal intervals along the length direction of the tape. When the plastic teeth are injection-molded, the melted plastic teeth penetrate into the first row of holes and the second row of holes, increasing the contact area between the plastic teeth and the tape body and enhancing the connection strength. Description of the Drawings
[0021] Figure 1 It is a three-dimensional structure diagram when the first row of holes and the second row of holes of the multi-row perforated tape for zippers are round holes;
[0022] Figure 2 It is a front view when the first row of holes and the second row of holes of the multi-row perforated tape for zippers are round holes;
[0023] Figure 3 It is for Figure 2 The sectional view taken along line A-A of
[0024] Figure 4 It is a front view when both the first row of holes and the second row of holes of the multi-row perforated tape for zippers are square holes;
[0025] Figure 5 It is a front view when the first row of holes of the multi-row perforated tape for zippers is a square hole and the second row of holes is a cross hole;
[0026] Figure 6 It is a front view when both the first row of holes and the second row of holes of the multi-row perforated tape for zippers are cross holes.
[0027] Description of the Main Component Symbols
[0028] 100. Multi-row perforated tape for zippers; 1. Tape body; 11. Opening surface; 2. First row of holes; 21. First section; 22. Second section; 3. Second row of holes; 31. Third section; 32. Fourth section; 4. Core wire; 41. Installation curved surface; 5. Tape edge. Detailed Embodiments
[0029] Next, the embodiments of the present application will be described in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments.
[0030] It should be noted that when a component is considered to be "connected" to another component, it can be directly connected to the other component or there may be an intermediate component at the same time. When a component is considered to be "disposed on" another component, it can be directly disposed on the other component or there may be an intermediate component at the same time. The terms "top", "bottom", "upper", "lower", "left", "right", "front", "rear", and similar expressions used herein are only for the purpose of illustration.
[0031] An embodiment of the present application provides a multi-row hole tape for a zipper, including:
[0032] A tape body having an opening surface;
[0033] A first row of holes, a plurality of the first row of holes are opened on the opening surface, the first row of holes penetrate through the tape body, and a plurality of the first row of holes are arranged at equal intervals along the length direction of the tape body, and a part of the adhesive teeth of the zipper is arranged in the first row of holes;
[0034] A second row of holes, a plurality of the second row of holes are opened on the opening surface, the second row of holes penetrate through the tape body, and a plurality of the second row of holes are arranged at equal intervals along the length direction of the tape body, and a part of the adhesive teeth of the zipper is arranged in the second row of holes;
[0035] The direction parallel to the opening surface and perpendicular to the length direction of the tape body is defined as the arrangement direction. The first row of holes and the second row of holes are arranged at intervals in the arrangement direction, and the first row of holes and the second row of holes are alternately arranged in the arrangement direction, and one adhesive tooth is arranged in both the first row of holes and the second row of holes at the same time. The multi-row hole tape for a zipper provided above has multiple rows of holes opened on the opening surface of the tape, specifically including a first row of holes and a second row of holes. Each row of holes includes a plurality of holes arranged at equal intervals along the length direction of the tape. When the adhesive teeth are injection-molded, the melted adhesive teeth penetrate into the first row of holes and the second row of holes, increasing the contact area between the adhesive teeth and the tape body and enhancing the connection strength.
[0036] The following will describe in detail some embodiments of the present application with reference to the accompanying drawings. Without conflict, the following embodiments and the features in the embodiments can be combined with each other.
[0037] Please refer to Figures 1-6 , an embodiment of the present application provides a multi-row hole tape 100 for a zipper, including a tape body 1, a first row of holes 2 and a second row of holes 3. The tape body 1 has an opening surface 11. A plurality of the first row of holes 2 are opened on the opening surface 11. The first row of holes 2 penetrate through the tape body 1. A plurality of the first row of holes 2 are arranged at equal intervals along the length direction of the tape body 1. A part of the adhesive teeth of the zipper is arranged in the first row of holes 2. A plurality of the second row of holes 3 are opened on the opening surface 11. The second row of holes 3 penetrate through the tape body 1. A plurality of the second row of holes 3 are arranged at equal intervals along the length direction of the tape body 1. A part of the adhesive teeth of the zipper is arranged in the second row of holes 3. The direction parallel to the opening surface 11 and perpendicular to the length direction of the tape body 1 is defined as the arrangement direction. The first row of holes 2 and the second row of holes 3 are arranged at intervals in the arrangement direction, and the first row of holes 2 and the second row of holes 3 are alternately arranged in the arrangement direction, and one adhesive tooth is arranged in both the first row of holes 2 and the second row of holes 3 at the same time.
[0038] Specifically, the tape body 1 is the basic part of the whole structure and has an opening surface 11. It provides a stable and structurally complete base to support and accommodate the first row of holes 2 and the second row of holes 3. It ensures that the plastic teeth of the zipper can be firmly fixed on the tape body 1, improving the durability and stability of the zipper. The first row of holes 2 are a plurality of holes opened on the opening surface 11 of the tape body 1. These holes penetrate the tape body 1 and are arranged equidistantly along the length direction of the tape body 1. A part of the plastic teeth of the zipper is arranged in these first row of holes 2. The first row of holes 2 is used to fix a part of the plastic teeth of the zipper. Through the arrangement of the holes, it ensures that the plastic teeth can be evenly and stably distributed on the tape. It guarantees the stability of the zipper during use, avoids the loosening or falling off of the plastic teeth during use, and improves the service life and reliability of the zipper. The second row of holes 3 are a plurality of holes opened on the opening surface 11 of the tape body 1. These holes penetrate the tape body 1 and are arranged equidistantly along the length direction of the tape body 1. A part of the plastic teeth of the zipper is arranged in these second row of holes 3. The second row of holes 3 is used in cooperation with the first row of holes 2 to further fix the plastic teeth of the zipper, providing a double fixing effect. Through the setting of the second row of holes 3, the stability of the zipper is further enhanced, reducing the risk of the plastic teeth shifting or falling off during use, and ensuring the smooth use and durability of the zipper. One plastic tooth is arranged on both the first row of holes 2 and the second row of holes 3. By arranging one plastic tooth on both the first row of holes 2 and the second row of holes 3, the fixing effect of the plastic tooth is enhanced, providing higher stability and reliability. It ensures the firm fixing of the plastic teeth on the tape, increases the service life and safety of the zipper, avoids failures during use, and improves the overall use effect.
[0039] Furthermore, the tape body 1 is the basic part of the zipper and is usually long strip-shaped. Its length direction is the pulling direction of the zipper. The tape body 1 has an opening surface 11 for opening holes. The arrangement direction refers to the direction parallel to the opening surface 11 and perpendicular to the length direction of the tape body 1, that is, the width direction of the tape. In this direction, there is a spaced position between each first row of holes 2 and its adjacent second row of holes 3. In this way, the positions of the first row of holes 2 do not coincide with the positions of the second row of holes 3, but are spaced apart in the width direction of the tape.
[0040] Furthermore, "the first row of holes 2 and the second row of holes 3 are arranged alternately in the arrangement direction" means that on the tape body 1, the first row of holes 2 and the second row of holes 3 are arranged in an alternating manner. This means that in the arrangement direction, the first row of holes 2 and the second row of holes 3 are not arranged continuously, but a first row of holes 2 is followed by a second row of holes 3, and they are arranged alternately. The number of the first row of holes 2 and the second row of holes 3 in the arrangement direction is adjusted by the size of the rubber teeth set on the tape, so that the connection between the rubber teeth and the multiple first row of holes 2 and the multiple second row of holes 3 is distributed more evenly. The evenly distributed connection points can effectively disperse the stress during the use of the zipper and reduce the situation of excessive local force. The advantage of the alternating arrangement is that the first row of holes 2 and the second row of holes 3 may have different hole shapes to adapt to rubber teeth of various specifications, thereby improving the flexibility and applicability of the connection. The alternating arrangement of different hole shapes can form a more diverse fixing method on the tape, dispersing the pressure and stress of the zipper during use.
[0041] In a specific example, the multi-row hole tape 100 for a zipper further includes a central core line 4 disposed on the tape body 1 , and the length direction of the central core line 4 is parallel to the length direction of the tape body 1 .
[0042] Specifically, the setting of the core wire 4 helps to improve the fixing strength of the rubber teeth on the tape body 1. The core wire 4 provides an additional support structure on the tape body 1, so that the rubber teeth can be better fixed on the tape and reduce the risk of falling off during use. The core wire 4 can provide stable support in the length direction of the tape, thereby improving the overall stability of the tape. Especially under high load and strong stretching conditions, the core wire 4 can effectively disperse the stress acting on the tape to prevent the tape from deforming or breaking. The setting of the core wire 4 helps to ensure the structural consistency of the tape. In the tape manufacturing process, the core wire 4 can be used as a reference standard to ensure that the size and shape of the tape remain consistent throughout the production process, thereby improving production efficiency and product quality. By setting the core wire 4 on the tape body 1, the connection strength between the rubber teeth and the tape can be significantly improved, and the overall durability of the zipper can be improved. The additional support provided by the core wire 4 makes the tape more stable when subjected to external forces, effectively reducing the risk of deformation and breakage of the tape. The use of the core wire 4 ensures the structural consistency of the tape during the production process, which helps to improve production efficiency and product quality.
[0043] In a specific example, in a first case, the first row of holes 2 are square holes, and the second row of holes 3 are cross holes.
[0044] Specifically, on the opening surface 11 of the tape body 1, the shape of the first row of holes 2 is a square hole. The four sides of the square hole are equal, providing a stable and uniform hole shape. The shape of the square hole helps to evenly distribute the plastic teeth of the zipper on the tape, making it better fixed on the tape. The square hole is easy to manufacture and control during the processing, suitable for mass production. The square hole provides a relatively large contact area, which helps to enhance the fixing effect of the plastic teeth and prevent the plastic teeth from loosening or shifting during use. On the opening surface 11 of the tape body 1, the shape of the second row of holes 3 is a cross hole, providing a fixing pattern different from that of the square hole. The design of the cross hole has a relatively larger contact area with the plastic teeth compared to the square hole, thus increasing the firmness of the fixation. In this way, the combination of the square hole and the cross hole controls the cost while having a strong connection ability.
[0045] In a specific example, the multi-row hole tape 100 for zippers further includes a tape edge 5 provided on the tape body 1, and the tape edge 5 is sewn to an external object.
[0046] Specifically, the tape edge 5 is an edge treatment part of a material added at the edge of the tape. It is fixed to the tape body 1 by sewing. The presence of the tape edge 5 can effectively enhance the edge stability of the tape, making the tape less likely to experience edge wear or detachment during use. Sewing the tape edge 5 to an external object can increase the contact area between the tape and other materials, thereby improving the fixing strength of the tape and preventing the tape from detaching or shifting under high load conditions. The tape edge 5 is usually made of a more wear-resistant or tear-resistant material, which can effectively improve the durability of the tape, especially under conditions of friction or mechanical pressure. The addition and sewing of the tape edge 5 can prevent the edge of the tape from tearing during use and increase the service life of the tape. The setting of the tape edge 5 can enhance the overall structural stability of the tape, prevent the tape from deforming or warping during use, and maintain the good performance of the zipper. By sewing the tape edge 5 to an external object, the connection between the tape and the tape edge 5 will be more firm, reducing the possibility of detachment or loosening of the tape during use.
[0047] In a specific example, in the second case, both the first row of holes 2 and the second row of holes 3 are cross holes.
[0048] Specifically, the design of the cross-shaped holes provides multiple contact points and a large contact area, enabling the gum teeth to come into closer contact with the tape body 1 during the fixing process. By increasing the contact area and contact points between the gum teeth and the tape, the fixing strength of the gum teeth can be significantly improved, reducing the loosening or detachment of the gum teeth under high load or frequent use conditions, thereby enhancing the durability and reliability of the zipper. The shape of the cross-shaped holes can provide support in multiple directions, making the fixing of the gum teeth in the tape more stable. This multi-directional support can effectively prevent the displacement of the gum teeth when stressed, ensuring the stability of the zipper during use and improving the overall performance of the zipper. The shape of the cross-shaped holes can disperse the stress in multiple directions when the tape is stressed, reducing the stress concentration in a single direction. The dispersed stress can effectively reduce the deformation and damage of the tape when stressed, extend the service life of the tape, and enhance the durability and reliability of the zipper. The shape of the cross-shaped holes helps to accurately position the gum teeth during the installation process, enabling the gum teeth to be fixed on the tape more accurately. This improves the installation accuracy of the gum teeth, reduces the installation error, and ensures that each gum tooth can be correctly fixed on the tape, thereby improving the production efficiency and product consistency.
[0049] In a specific example, in the third case, both the first row of holes 2 and the second row of holes 3 are square holes.
[0050] Specifically, the shape of the square holes provides straight edges and multiple corner points, enabling the gum teeth to come into closer contact with the tape body 1 during the fixing process. This increased contact area and multiple corner points can significantly improve the fixing strength of the gum teeth, reducing the loosening or detachment of the gum teeth under high load or frequent use conditions, thereby enhancing the durability and reliability of the zipper. The design of the square holes can provide support in multiple directions, making the fixing of the gum teeth in the tape more stable. The edges of the square holes provide multi-directional support for the gum teeth, making them more stable when stressed. This multi-directional support can effectively prevent the displacement of the gum teeth when stressed, ensuring the stability of the zipper during use and improving the overall performance of the zipper. The shape of the square holes can disperse the stress in multiple directions when the tape is stressed, reducing the stress concentration in a single direction. The straight edges and corner points of the square holes help to evenly distribute the stress. The dispersed stress can effectively reduce the deformation and damage of the tape when stressed, extend the service life of the tape, and enhance the durability and reliability of the zipper.
[0051] In a specific example, in the fourth case, both the first row of holes 2 and the second row of holes 3 are round holes.
[0052] Specifically, both the first row of holes 2 and the second row of holes 3 are circular holes, which means that the boundary of each hole is a continuous curve without sharp corners. This geometric shape makes the processing and forming of the holes simpler and more consistent. The design and processing of circular holes are relatively simple, and common processing methods such as punching and drilling can be easily achieved. This simplicity not only reduces the production cost but also improves the production efficiency and processing accuracy. The geometric shape of the circular holes makes the edges of the holes without sharp corners, thus avoiding the stress concentration phenomenon. During use, the circular holes can distribute stress more evenly, reducing the risk of material fatigue and fracture caused by stress concentration. Although the contact area of the circular holes is relatively limited, their uniform edges can provide a stable mechanical locking effect. During the injection molding process, the glue tooth material can evenly fill the circular holes and form a tight connection with the tape body 1, thereby enhancing the fixing strength of the glue teeth.
[0053] In a specific example, the first row of holes 2 has a first section 21 communicating with the opening surface 11 and a second section 22 communicating with the first section 21. The first section 21 is located between the second section 22 and the opening surface 11, and the aperture r1 of the first section 21 and the aperture r2 of the second section 22 satisfy the relationship r1 < r2;
[0054] The second row of holes 3 has a third section 31 communicating with the opening surface 11 and a fourth section 32 communicating with the third section 31. The third section 31 is located between the fourth section 32 and the opening surface 11, and the aperture r3 of the third section 31 and the aperture r4 of the fourth section 32 satisfy the relationship r3 < r4.
[0055] Specifically, the first row of holes 2 includes a first section 21 communicating with the opening surface 11 and a second section 22 communicating with the first section 21. The first section 21 is located between the second section 22 and the opening surface 11, that is, the first section 21 is the hole section close to the surface of the cloth tape, and the second section 22 is below the first section 21 and farther from the opening surface 11. The aperture of the first section 21 is r1, and the aperture of the second section 22 is r2. The aperture relationship is r1 < r2, which means that the aperture of the first section 21 close to the opening surface 11 is smaller, and the aperture of the second section 22 inside is larger. The second row of holes 3 includes a third section 31 communicating with the opening surface 11 and a fourth section 32 communicating with the third section 31. The third section 31 is located between the fourth section 32 and the opening surface 11, that is, the third section 31 is the hole section close to the surface of the cloth tape, and the fourth section 32 is below the third section 31 and farther from the opening surface 11. The aperture of the third section 31 is r3, and the aperture of the fourth section 32 is r4. The aperture relationship is r3 < r4, which means that the aperture of the third section 31 close to the opening surface 11 is smaller, and the aperture of the fourth section 32 inside is larger. The design of gradually increasing the aperture enables the glue teeth to better fill the holes and form a locking effect during the injection molding process. The locking effect here refers to the fixation of the glue teeth achieved through the engagement between the hole sections with different apertures and the glue tooth material. The smaller hole sections (the first section 21 and the third section 31) are close to the opening surface 11, providing initial locking points, while the larger hole sections (the second section 22 and the fourth section 32) provide deeper locking points, thus enhancing the fixing strength of the glue teeth. Due to the gradually increasing aperture, the melted glue tooth material can first fill the smaller hole sections during the injection molding process and then expand to the larger hole sections, forming a firm connection. This design effectively increases the contact area between the glue teeth and the cloth tape body 1, thereby improving the connection strength. The design of the multi-section hole structure prevents the glue teeth from falling off or loosening under high-load usage conditions by providing multiple locking points. The smaller hole sections (the first section 21 and the third section 31) play a preliminary fixing role, while the larger hole sections (the second section 22 and the fourth section 32) further enhance the fixing effect.
[0056] In a specific example, the core wire 4 has an installation curved surface 41 that bends away from the cloth tape body 1, and the glue teeth of the zipper are arranged on the installation curved surface 41.
[0057] Specifically, the core line 4 refers to a linear structure in the middle part of the tape body 1. This core line 4 has an installation curved surface 41 that bends away from the tape body 1, that is, the core line 4 is not straight but bends outward from the tape body 1. The installation curved surface 41 refers to the outer surface of the core line 4, and this surface is curved and faces away from the tape body 1. The plastic teeth of the zipper are arranged on the installation curved surface 41, that is, the plastic teeth are fixed on this curved surface, rather than directly installed on the flat surface of the tape body 1. The curved design of the installation curved surface 41 provides a three-dimensional fixing surface, which can better wrap and support the plastic teeth compared to flat fixing. The curved installation curved surface 41 provides more contact area and fixing points, enhancing the stability of the plastic teeth. Through the curved installation curved surface 41, the plastic teeth can form a larger contact area with the core line 4 during installation, so that the plastic teeth are more firmly arranged on the core line.
[0058] The above are only the implementation manners of the present application. It should be noted here that for those of ordinary skill in the art, improvements can be made without departing from the creative concept of the present application, but these all belong to the protection scope of the present application.
Claims
1. A multi-row perforated cloth tape for a zipper, characterized in that, Comprising: A cloth tape body, the cloth tape body having an opening surface; A first row of holes, a plurality of the first row of holes being formed in the opening surface, the first row of holes penetrating the cloth tape body, and the plurality of the first row of holes being arranged at equal intervals along the length direction of the cloth tape body, and a part of the plastic teeth of the zipper being arranged in the first row of holes; A second row of holes, a plurality of the second row of holes being formed in the opening surface, the second row of holes penetrating the cloth tape body, and the plurality of the second row of holes being arranged at equal intervals along the length direction of the cloth tape body, and a part of the plastic teeth of the zipper being arranged in the second row of holes; The direction parallel to the opening surface and perpendicular to the length direction of the cloth tape body is defined as the arrangement direction, the first row of holes and the second row of holes are arranged at intervals in the arrangement direction, and the first row of holes and the second row of holes are alternately arranged in the arrangement direction, and one plastic tooth is arranged in both the first row of holes and the second row of holes at the same time; In the fourth case, both the first row of holes and the second row of holes are circular holes; the first row of holes has a first section communicating with the opening surface and a second section communicating with the first section, the first section being located between the second section and the opening surface, and the aperture r1 of the first section and the aperture r2 of the second section satisfy the relational expression r1 < r2; The second row of holes has a third section communicating with the opening surface and a fourth section communicating with the third section, the third section being located between the fourth section and the opening surface, and the aperture r3 of the third section and the aperture r4 of the fourth section satisfy the relational expression r3 < r4.
2. The multi-row perforated cloth tape for zippers according to claim 1, wherein The multi-row hole cloth tape for the zipper further includes a core wire arranged on the cloth tape body, and the length direction of the core wire is parallel to the length direction of the cloth tape body.
3. The multi-row perforated fabric tape for zippers according to claim 2, characterized in that, The multi-row hole cloth tape for the zipper further includes a cloth edge arranged on the cloth tape body, and the cloth edge is sewn to an external object.
4. The multi-row perforated cloth tape for zippers according to claim 2, characterized in that, The core wire has an installation curved surface bent away from the cloth tape body, and the plastic teeth of the zipper are arranged on the installation curved surface.