Water repellent zipper

Abstract

This utility model discloses a water-repellent zipper, relating to the field of zipper manufacturing technology. To address the insufficient waterproof performance of existing water-repellent zippers, the zipper includes: a pair of zipper tapes and a pair of zipper teeth. One edge of one side of the zipper tape has a core thread protruding from that surface. The core threads of the pair of zipper tapes are arranged opposite each other. The other side of the zipper tape is flat and covered with a tightly fitting water-repellent membrane. The zipper teeth include several teeth arranged along the extension direction of the core thread. Each tooth includes an interlocking portion and is a non-coiled tooth. A pull tab is used to open and close the pair of zipper teeth. A first gap is provided between the end edge of the water-repellent membrane near the zipper teeth and the end edge of the zipper tape near the zipper teeth. A second gap is provided between the side end face of the interlocking portion away from the core thread and the end edge of the zipper tape near the zipper teeth. The second gap is greater than or equal to the first gap. This arrangement improves the waterproof effect.

Description

Technical Field

[0001] This utility model relates to the field of zipper manufacturing technology, and more specifically, to a water-repellent zipper. Background Technology

[0002] In modern industry and daily life, waterproof zippers are increasingly widely used, especially in fields requiring high levels of waterproof sealing, such as diving equipment, underwater tools, high-end waterproof bags, and special protective clothing. However, current waterproof zipper technology still faces some unresolved issues in practical applications, particularly regarding the zipper's sealing performance and structural integrity.

[0003] Taking the liquid-tight zipper designed in patent CN102639022B as an example, although it improves the waterproof performance of the zipper to some extent, it still has obvious defects. Specifically, in this patent, there is no liquid-tight layer covering a small area between the zipper teeth, resulting in incomplete waterproofing. This means that when the zipper is closed, moisture may penetrate through these uncovered areas, affecting the waterproof performance of the product. Moreover, the core thread between the two teeth is also not covered by a liquid-tight layer. As an important part of the zipper structure, the surface of the core thread is directly exposed to the external environment, allowing moisture to penetrate along the gap between the core thread and the zipper teeth, further weakening the zipper's waterproof performance.

[0004] Therefore, how to solve the problem of insufficient waterproof performance of existing water-repellent zippers is a problem that urgently needs to be solved by those skilled in the art. Utility Model Content

[0005] In view of this, the purpose of this utility model is to provide a water-repellent zipper to improve the waterproof effect.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A water-repellent zipper, comprising:

[0008] A pair of zipper tapes, one edge of one side of the surface of the zipper tapes is provided with a core thread protruding from the surface, the core threads of the pair of zipper tapes are arranged opposite to each other, and the other side of the zipper tapes is flat and covered with a tightly fitting water-repellent membrane.

[0009] A pair of chain teeth, the chain teeth including a plurality of chain teeth arranged along the extension direction of the core wire, the chain teeth including an interlocking portion;

[0010] The chain teeth are non-coil chain teeth;

[0011] One pull tab is used to open and close a pair of chain teeth;

[0012] A first gap is provided between the end edge of the water-repellent membrane near the chain teeth and the end edge of the zipper tape near the chain teeth mounting side;

[0013] A second gap is provided between the side end face of the interlocking part away from the core wire and the end edge of the zipper tape near the tooth mounting side;

[0014] The second spacing is greater than or equal to the first spacing.

[0015] Preferably, the edge of the water-repellent membrane near the zipper tooth contacts the zipper tooth but is not engaged by the interlocking part, and remains in a straight line when the zipper tape is in a flat state.

[0016] Preferably, the end edge of the water-repellent membrane near the zipper tooth contacts the zipper tooth and is partially engaged by the interlocking part, and is in a straight line when the zipper tape is in a flat state.

[0017] Preferably, the end edge of the water-repellent membrane near the zipper tooth is in contact with the zipper tooth and is partially engaged by the interlocking part. When the zipper tape is in a straight state, the end edge engaged by the interlocking part is not on the same straight line as the end edge between two adjacent zipper teeth.

[0018] Preferably, the water-repellent membrane is a polymer resin membrane.

[0019] Preferably, the zipper tape, core wire, water-repellent membrane, and zipper teeth are all coated with a waterproofing agent and / or an oil-repellent agent.

[0020] Preferably, the chain teeth are injection-molded resin chain teeth or extruded metal chain teeth.

[0021] Preferably, the zipper teeth also include an engaging portion, which is connected to the interlocking portion and is located on the outside of the edge of the zipper tape.

[0022] Preferably, the interlocking part includes a first fixing part and a second fixing part located on both sides of the zipper tape, and the first fixing part and the second fixing part are an integral structure.

[0023] Preferably, the zipper tape is a strip structure made of woven, braided or nonwoven fiber yarn.

[0024] The water-repellent zipper provided by this utility model includes a pair of zipper tapes and a pair of zipper teeth. A zipper pull is used to open and close the pair of zipper teeth. Through the guiding action of the zipper pull, the zipper teeth can be more tightly engaged, ensuring good sealing performance of the zipper in the closed state, thereby improving waterproof performance. One edge of one side of the zipper tape has a core line protruding from the surface, which provides clear positioning for the subsequent zipper teeth and facilitates precise installation of the zipper teeth. The core lines of the pair of zipper tapes are arranged opposite each other, so that the zipper can be better aligned when engaged, improving the engagement accuracy and sealing performance of the zipper. The other side of the zipper tape is flat and covered with a tightly adhered water-repellent membrane, so that the zipper tape forms a flat surface on the side without the core line, which is conducive to the tight adhesion of the water-repellent membrane, thereby improving waterproof performance. The zipper teeth include several zipper teeth arranged along the extension direction of the core line. Each zipper tooth includes an interlocking part, which allows the zipper teeth to be correctly aligned and engaged along the direction of the core line, ensuring smooth opening and closing of the zipper. The design of the bite section improves the tightness of the bite between the chain teeth, further enhancing the waterproof performance.

[0025] The zipper teeth are non-coiled, which allows for a tighter connection when engaged, reducing gaps between teeth. In waterproof zipper applications, non-coiled teeth better block water and improve waterproof performance. A first gap is provided between the edge of the water-repellent membrane near the zipper teeth and the edge of the zipper tape near the zipper teeth. A second gap is provided between the side face of the engagement part away from the core wire and the edge of the zipper tape near the zipper teeth. The second gap is greater than or equal to the first gap, ensuring that the water-repellent membrane is not excessively stretched or compressed when the zipper teeth engage, which helps improve the overall waterproof performance and durability of the zipper.

[0026] The water-repellent zipper designed in the above manner, by covering a specific area of ​​the zipper tape with a water-repellent membrane and precisely controlling the coverage area of ​​the water-repellent membrane, can ensure that the water-repellent membrane can completely cover possible water seepage paths when the zipper teeth are engaged, thereby significantly improving the waterproof performance of the zipper. Attached Figure Description

[0027] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0028] Figure 1 This is a schematic diagram of the structure of the water-repellent zipper provided by this utility model;

[0029] Figure 2 This is a partial schematic diagram of the water-repellent zipper provided by this utility model;

[0030] Figure 3 for Figure 1 Side view of a first embodiment of the water-repellent membrane in the image;

[0031] Figure 4 for Figure 1 A side view of a second embodiment of the water-repellent membrane in the image;

[0032] Figure 5 for Figure 1 A top view of the third embodiment of the water-repellent membrane in the image;

[0033] Figure 6 A schematic diagram of the chain teeth provided by this utility model;

[0034] Figure 7 for Figure 6 A structural diagram from another perspective.

[0035] Figure label:

[0036] 1-Zip tape, 11-Core wire;

[0037] 2-Water-repellent membrane;

[0038] 3-Chain tooth, 31-Occlusal part, 311-First fixing part, 312-Second fixing part, 32-Occlusal part. Detailed Implementation

[0039] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0040] In this utility model, 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 connection; 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; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0041] The core of this invention is to provide a water-repellent zipper that improves waterproof performance.

[0042] Please refer to Figure 1 , Figure 2 , Figure 3 and Figure 4A water-repellent zipper includes a pair of zipper tapes 1 and a pair of zipper teeth. A zipper pull is used to open and close the pair of zipper teeth. Through the guiding action of the zipper pull, the zipper teeth 3 can be more tightly interlocked, ensuring good sealing performance of the zipper in the closed state, thereby improving waterproof performance. One edge of one side surface of the zipper tape 1 is provided with a core thread 11 protruding from the surface, providing clear positioning for the subsequent zipper teeth 3 and facilitating precise installation of the zipper teeth 3. The core threads 11 of the pair of zipper tapes 1 are arranged opposite each other, so that the zipper... During engagement, better alignment is achieved, improving the zipper's engagement precision and sealing performance. The other side of the zipper tape 1 is flat and covered with a tightly adhering water-repellent membrane 2, creating a smooth surface on the side without the core thread 11. This facilitates the tight adhesion of the water-repellent membrane 2, thereby enhancing waterproof performance. The zipper teeth include several teeth 3 arranged along the extension direction of the core thread 11. Each tooth 3 includes an interlocking portion 31, ensuring correct alignment and engagement along the direction of the core thread 11, guaranteeing smooth opening and closing of the zipper. The design of the interlocking portion 31 improves the tightness of the engagement between the teeth 3, further enhancing waterproof performance.

[0043] The chain teeth 3 are non-coiled chain teeth. Non-coiled chain teeth can form a tighter connection when they are engaged, reducing the gaps between the chain teeth 3. In waterproof zipper applications, non-coiled chain teeth can better block water and improve waterproof performance. A first gap L1 is provided between the end edge of the water-repellent membrane 2 near the chain tooth 3 and the end edge of the zipper tape 1 near the installation side of the chain tooth 3. A second gap L2 is provided between the side end face of the engagement part 31 away from the core wire 11 and the end edge of the zipper tape 1 near the installation side of the chain tooth 3. The second gap L2 is greater than or equal to the first gap L1, ensuring that the water-repellent membrane 2 is not excessively stretched or compressed when the chain teeth 3 are engaged, which helps to improve the overall waterproof performance and durability of the zipper.

[0044] The water-repellent zipper designed in the above manner, by covering a specific area of ​​the zipper tape 1 with a water-repellent membrane 2 and precisely controlling the coverage area of ​​the water-repellent membrane 2, can ensure that the water-repellent membrane 2 can completely cover possible water seepage paths when the zipper teeth 3 are engaged, thereby significantly improving the waterproof performance of the zipper.

[0045] Please refer to Figure 4 The end edge of the water-repellent membrane 2 near the zipper tooth 3 contacts the zipper tooth 3, but is not engaged by the biting part 31, and is in a straight state when the zipper tape 1 is in a flat state.

[0046] It should be noted that the direct contact between the water-repellent membrane 2 and the zipper teeth 3 effectively blocks water penetration, improving the zipper's waterproof performance. The fact that the water-repellent membrane 2 is not engaged by the interlocking part 31 reduces the pressure and wear on the membrane 2 during the engagement of the zipper teeth 3, helping to protect the integrity of the membrane 2, extend its service life, and prevent a decrease in waterproof performance due to damage to the membrane 2. Furthermore, when the zipper tape 1 is straight, the water-repellent membrane 2 is in a straight line, meaning that the outer edge of the membrane 2 closest to the zipper teeth 3 is in a straight line. This ensures that when the zipper tape 1 is straight, there are no gaps between the water-repellent membrane 2 and the zipper teeth 3, thereby improving the continuity and effectiveness of the waterproofing.

[0047] Please refer to Figure 3 The end edge of the water-repellent membrane 2 near the zipper tooth 3 is in contact with the zipper tooth 3, and part of it is engaged by the biting part 31, and it is in a straight state when the zipper tape 1 is in a flat state.

[0048] It should be noted that the end edge of the water-repellent membrane 2 near the zipper tooth 3 contacts the zipper tooth 3, and part of the water-repellent membrane 2 is engaged by the interlocking part 31. This enhances its fixation, reduces displacement or detachment caused by friction or pulling during use, and helps maintain the long-term stability and waterproof effect of the water-repellent membrane 2, extending the service life of the zipper. Furthermore, when the zipper tape 1 is straight, the water-repellent membrane 2 is in a straight line, meaning that the outer edges of the water-repellent membrane 2 engaged by the interlocking part 31 are on a straight line. This indicates that the layout of the water-repellent membrane 2 is uniform and consistent, helping to ensure consistent waterproof performance and avoiding weaknesses in waterproofing caused by uneven layout. At the same time, the straight line simplifies the manufacturing process, as straight cutting and laying are generally easier and more precise than curved cutting.

[0049] Please refer to Figure 5 The end edge of the water-repellent membrane 2 near the zipper tooth 3 is in contact with the zipper tooth 3 and is partially engaged by the biting part 31. When the zipper tape 1 is in a straight state, the end edge engaged by the biting part 31 is not on the same straight line as the end edge between two adjacent zipper teeth 3.

[0050] It should be noted that the edge of the water-repellent membrane 2 near the zipper tooth 3 is in contact with the zipper tooth 3, and part of the water-repellent membrane 2 is engaged by the interlocking part 31. This enhances its fixation, reduces displacement or detachment caused by friction or pulling during use, and helps maintain the long-term stability and waterproof effect of the water-repellent membrane 2, extending the service life of the zipper. Furthermore, when the zipper tape 1 is straight, the outer edge B of the water-repellent membrane 2 engaged by the interlocking part 31 is on a straight line. However, the edge A of the water-repellent membrane 2 between two adjacent zipper teeth 3 is on another straight line. That is, the edge A of the water-repellent membrane 2 near the zipper tooth 3 that is not engaged by the interlocking part 31 is on another straight line. This edge A can coincide with the edge of the zipper tape 1, ensuring that the water-repellent membrane 2 can better fill the gaps between the zipper teeth 3 when the zipper teeth 3 are closed, reducing the possibility of water penetration. It also reduces wrinkles in the water-repellent membrane 2 when the zipper teeth 3 are closed, further improving the waterproof performance. Since the water-repellent membrane 2 can better fill the gaps between the chain teeth 3 when the chain teeth 3 are closed, this can reduce the friction between the chain teeth 3, thereby extending the service life of the chain teeth 3.

[0051] In the above embodiment, the water-repellent membrane 2 is adhered to the zipper tape 1.

[0052] It should be noted that the water-repellent membrane 2 is tightly bonded to the surface of the zipper tape 1, forming a continuous and uniform waterproof layer. This effectively blocks moisture penetration, ensuring the zipper remains dry during use and providing excellent waterproof performance even in high humidity or water-related environments. Through the bonding process, a strong bond is formed between the water-repellent membrane 2 and the zipper tape 1. Compared to traditional lamination or coating processes, bonding significantly improves the adhesion of the water-repellent membrane 2, reducing membrane peeling or delamination caused by friction, pulling, or frequent use, thereby extending the zipper's lifespan.

[0053] Furthermore, the water-repellent membrane 2 is adhered to the smooth surface of the zipper tape 1, ensuring the water repellency of the zipper tape 1. Using an adhesive process to fix the water-repellent membrane 2 to the zipper tape 1 simplifies the production process and reduces production costs. The tight adhesion of the water-repellent membrane 2 not only improves waterproof performance but also makes the zipper smoother and more reliable during use.

[0054] In the above case, the water-repellent membrane 2 is a polymer resin membrane.

[0055] Understandably, polymeric resin film is a high-performance, flexible waterproof material with excellent waterproof properties. By applying it to the front of the zipper tape 1, a uniform and continuous waterproof layer can be formed, effectively blocking moisture penetration. Even in high humidity or water-related environments, it keeps the zipper dry, significantly improving the zipper's water-repellent effect. One side of the zipper tape 1 is flat, allowing the polymeric resin film to completely and smoothly cover the tape, improving the adhesion of the water-repellent film 2 and preventing wrinkles or bubbles caused by uneven surfaces. This ensures a tight bond between the water-repellent film 2 and the tape, further enhancing the waterproof performance. The flexible nature of the polymeric resin film allows it to maintain good flexibility and elasticity during zipper use, preventing cracks or detachment due to frequent zipping and closing, extending the zipper's lifespan and ensuring the durability of its waterproof performance.

[0056] Furthermore, the zipper tape 1, core wire 11, water-repellent membrane 2, and zipper teeth 3 are all coated with waterproofing agent and / or oil-repellent agent.

[0057] It should be noted that the application of waterproofing and oil-repellent agents provides an additional waterproof and oil-repellent protective layer for all components of the zipper. This not only enhances the overall waterproof performance of the zipper but also effectively prevents the adhesion and penetration of oil stains, ensuring the zipper maintains good protection against water and oil. The waterproofing and oil-repellent agents form a uniform protective film on the surfaces of the zipper tape 1, core thread 11, water-repellent film 2, and zipper teeth 3. This protective film effectively blocks external moisture and oil stains, reducing erosion and contamination of the zipper surface, thereby extending the zipper's lifespan. Specifically, the waterproofing and oil-repellent agents applied to the zipper teeth 3 reduce friction between them, improving their engagement and sliding performance. This not only makes the zipper opening and closing smoother but also reduces wear caused by friction, further extending the lifespan of the zipper teeth 3.

[0058] In the above embodiments, the chain tooth 3 is an injection-molded resin chain tooth or an extruded metal chain tooth.

[0059] Understandably, the chain teeth 3 are typically made of resin or metal. Resin is molded using injection molding, while metal is molded using extrusion molding; both processes are consistent with those of conventional zippers. Whether resin or metal, the molding process ensures high precision and consistency for the chain teeth 3. Injection-molded resin and extruded metal chain teeth mesh tightly after molding, ensuring that the chain teeth 3 adhere closely to the water-repellent membrane 2, effectively preventing moisture from seeping through the gaps between the chain teeth 3 and the fabric tape, further optimizing the zipper's waterproof performance.

[0060] In the above embodiment, the zipper tooth 3 also includes an engaging part 32, which is connected to the biting part 31 and is located on the outer side of the edge of the zipper tape 1.

[0061] Understandably, the engagement portion 32 is located on the outer side of the zipper tape 1 edge, allowing the zipper teeth 3 to form a tighter contact when closed. This effectively reduces gaps between the zipper teeth 3, further preventing moisture penetration and significantly improving the zipper's waterproof performance. The connection design between the engagement portion 32 and the interlocking portion 31 makes the zipper teeth 3 more stable during use. This structure not only enhances the strength of the zipper teeth 3 but also reduces the risk of deformation or damage to the zipper teeth 3 due to external forces, thereby extending the zipper's service life.

[0062] Please refer to Figure 6 and Figure 7 The interlocking part 31 includes a first fixing part 311 and a second fixing part 312 located on both sides of the zipper tape 1, and the first fixing part 311 and the second fixing part 312 are an integral structure.

[0063] It should be noted that the first fixing part 311 and the second fixing part 312 are an integral structure, which makes the zipper teeth 3 more firmly fixed on both sides of the zipper tape 1. The interlocking part 31 of the integral structure can evenly distribute external force, reducing the risk of the zipper teeth 3 loosening or falling off due to excessive local force, thereby significantly enhancing the fixing strength of the zipper teeth 3. The interlocking part 31 of the integral structure can fit tightly against both sides of the zipper tape 1, reducing the gap between the zipper teeth 3 and the tape, effectively preventing water from penetrating from the gap between the zipper teeth 3 and the tape, further improving the waterproof performance of the zipper, and ensuring that the zipper can completely block water when closed.

[0064] In the above case, the end of the engaging part 32 is connected to one end of the first fixing part 311 and the second fixing part 312, respectively.

[0065] Understandably, the connection design between the engaging part 32 and the first fixing part 311 and the second fixing part 312 makes the zipper teeth 3 more securely fixed on both sides of the zipper tape 1. This structure can effectively disperse external forces, reducing the risk of the zipper teeth 3 loosening or falling off due to excessive local stress, thereby significantly enhancing the overall structural stability of the zipper teeth 3. The integrated connection method reduces complex steps in the production process, lowers production costs, ensures consistent product quality, and improves production efficiency.

[0066] In the above embodiments, the zipper tape 1 is a strip structure made of woven, braided or nonwoven fiber yarn.

[0067] It should be noted that woven, braided, or nonwoven fabrics possess excellent flexibility, allowing the zipper tape 1 to adapt to various shapes and angles during use, providing a more comfortable and snug fit. This flexibility is particularly suitable for applications requiring frequent movement, such as clothing and backpacks.

[0068] The specific manufacturing process of this zipper is as follows: Select the core thread 11 corresponding to the required model, and use a staggered weaving technique to create a fabric strip. Then, apply a water-repellent film 2 to the flat surface of the fabric strip to create a single-sided waterproof water-repellent fabric strip. Finally, perform a tooth-implanting process on the water-repellent fabric strip, ensuring that the interlocking parts 31 of the chain teeth 3 tightly engage with the core thread 11 and the flat surface of the core thread 11 to form a single water-repellent zipper chain. After further processing with additional agents such as waterproofing agents and oil-repellent agents, the zipper is assembled into a complete water-repellent assembly.

[0069] In summary, the water-repellent zipper provided by this utility model effectively solves the problem of poor waterproof performance in the prior art, ensuring the reliability and waterproof performance of the zipper in various usage environments.

[0070] It should be noted that in this specification, relational terms such as first and second are used only to distinguish one entity from several other entities, and do not necessarily require or imply any such actual relationship or order between these entities.

[0071] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0072] The present invention provides a detailed description of a water-repellent zipper. Specific examples have been used to illustrate the principles and implementation methods of the present invention. The descriptions of these embodiments are merely illustrative and are intended to aid in understanding the method and core concepts of the present invention. It should be noted that those skilled in the art can make various improvements and modifications to the present invention without departing from its principles, and these improvements and modifications also fall within the protection scope of the present invention.

Claims

1. A water-repellent zipper, characterized in that, include: A pair of zipper tapes (1), one edge of one side surface of the zipper tape (1) is provided with a core line (11) protruding from the surface, the core lines (11) of the pair of zipper tapes (1) are arranged opposite to each other, and the other side surface of the zipper tape (1) is flat and covered with a tightly fitting water-repellent membrane (2). A pair of chain teeth, the chain teeth comprising a plurality of chain teeth (3) arranged along the extension direction of the core wire (11), the chain teeth (3) comprising an interlocking portion (31); The chain tooth (3) is a non-coil chain tooth; A pull tab is used to open and close the pair of chain teeth; The water-repellent membrane (2) has a first gap (L1) between the end edge of the zipper tape (1) near the zipper tooth (3) and the end edge of the zipper tape (1) near the zipper tooth mounting side. A second gap (L2) is provided between the side end face of the interlocking part (31) facing away from the core wire (11) and the end edge of the zipper tape (1) near the zipper tooth mounting side. The second spacing (L2) is greater than or equal to the first spacing (L1).

2. The water-repellent zipper according to claim 1, characterized in that, The water-repellent membrane (2) has its end edge near the zipper tooth (3) in contact with the zipper tooth (3), but is not engaged by the biting part (31), and is in a straight state when the zipper tape (1) is in a flat state.

3. The water-repellent zipper according to claim 1, characterized in that, The water-repellent membrane (2) has its end edge near the zipper tooth (3) in contact with the zipper tooth (3), and is partially engaged by the biting part (31), and is in a straight state when the zipper tape (1) is in a straight state.

4. The water-repellent zipper according to claim 1, characterized in that, The water-repellent membrane (2) has its end edge near the zipper tooth (3) in contact with the zipper tooth (3), and part of it is engaged by the biting part (31). When the zipper tape (1) is in a straight state, the end edge engaged by the biting part (31) is not on the same straight line as the end edge between two adjacent zipper teeth (3).

5. The water-repellent zipper according to any one of claims 1-4, characterized in that, The water-repellent membrane (2) is a polymer resin membrane.

6. The water-repellent zipper according to any one of claims 1-4, characterized in that, The zipper tape (1), the core wire (11), the water-repellent membrane (2) and the zipper teeth (3) are all coated with a waterproofing agent and / or an oil-repellent agent.

7. The water-repellent zipper according to any one of claims 1-4, characterized in that, The chain teeth (3) are injection-molded resin chain teeth or extruded metal chain teeth.

8. The water-repellent zipper according to any one of claims 1-4, characterized in that, The chain tooth (3) also includes an engagement part (32), which is connected to the bite part (31) and is located on the outside of the edge of the zipper tape (1).

9. The water-repellent zipper according to claim 8, characterized in that, The interlocking part (31) includes a first fixing part (311) and a second fixing part (312) located on both sides of the zipper tape (1), and the first fixing part (311) and the second fixing part (312) are an integral structure.

10. The water-repellent zipper according to claim 9, characterized in that, The zipper tape (1) is a strip structure made of woven, braided or nonwoven fiber yarn.

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