Nylon zipper with injection molding covered edge
By using injection molding and edging technology to fix the lower patch, inner patch and outer patch, the arching problem of nylon zippers when sewing on thin fabrics is solved, achieving a more stable and beautiful cloth edge effect.
Patent Information
- Application Number
- CN202421833036.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-31
- Publication Date
- 2025-06-27
- Estimated Expiration
- 2034-07-31
AI Technical Summary
Traditional nylon zippers often have problems with arching when dealing with thin fabrics, which increases production costs and affects the comfort and appearance texture of the product.
The nylon zipper design with injection molding edges is adopted, and the lower patch, inner patch and outer patch and cloth tape are fixed by injection molding edges to increase the stability of the edges and avoid arches.
It effectively solves the problem of arching when sewing nylon zippers on thin fabrics, reduces subsequent processes and costs, improves the comfort and appearance of the product, and improves the shrinkage resistance of the cloth edges.
Smart Images

Figure CN223025540U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of nylon zippers, and specifically relates to a nylon zipper with an injection-molded edge. Background Technique
[0002] In modern clothing manufacturing, nylon zippers, as a common functional accessory, play an important role in enhancing the practicality and aesthetics of products. However, traditional nylon zippers often have the problem of arching when dealing with thin fabrics, which not only increases production costs but also affects the comfort and appearance texture of products.
[0003] Chinese Utility Model Patent Publication No.: CN 215075925 U, discloses: a smooth structure of a nylon zipper. In this smooth structure of the nylon zipper, a waterproof cloth is arranged inside to improve the waterproof performance inside the nylon layer and prevent external water vapor from penetrating into the zipper. An elastic cloth is provided to further improve the shrinkage and resilience inside the nylon layer and prevent deformation due to internal pressure. However, the cloth edge of this nylon zipper is not provided with a edge wrapping structure, and arching or frayed edges will occur when the cloth edge is sewn with other fabrics, affecting the final effect of the product and production. Summary of the Invention
[0004] The technical problem to be solved by the utility model is to provide a nylon zipper with an injection-molded edge, which can effectively solve the problems in the prior art.
[0005] The technical solution adopted by the utility model is: a nylon zipper with an injection-molded edge, including a left cloth tape, a left chain tooth is fixedly sewn and connected to the right side of the left cloth tape, a fixing pin is fixedly connected to the lower end of the left chain tooth, a socket is fixedly connected to the lower end of the fixing pin, a lower patch cloth one is wrapped around the lower end of the left cloth tape, an inner patch cloth one is wrapped around the lower end of the left cloth tape, an outer patch cloth one is wrapped around the left side of the left cloth tape, a right cloth tape is arranged on the right side of the left cloth tape, a right chain tooth is fixedly sewn and connected to the left side of the right cloth tape, a plug pin is fixedly connected to the lower end of the right chain tooth, a lower patch cloth two is wrapped around the lower end of the right cloth tape, an inner patch cloth two is wrapped around the lower end of the right cloth tape, an outer patch cloth two is wrapped around the right side of the right cloth tape, and a zipper head is arranged between the left chain tooth and the right chain tooth.
[0006] Preferably, the lower patch cloth one, the inner patch cloth one and the outer patch cloth one are all fixed to the left cloth tape by injection molding edge wrapping, and the lower patch cloth two, the inner patch cloth two and the outer patch cloth two are all fixed to the right cloth tape by injection molding edge wrapping.
[0007] Through the above technical solution, the lower patch cloth one, the inner patch cloth one and the outer patch cloth one are all fixed to the left cloth tape by injection molding edge wrapping, increasing the stability of the cloth edge, so that the nylon zipper is not easy to arch when sewing thin fabrics, reducing subsequent processes and costs.
[0008] Preferably, the structures of the first lower patch, the first inner patch, the first outer patch are symmetrically identical to those of the second lower patch, the second inner patch, and the second outer patch.
[0009] Through the above technical solution, the structures of the first lower patch, the first inner patch, the first outer patch are symmetrically identical to those of the second lower patch, the second inner patch, and the second outer patch, which is convenient for production.
[0010] Preferably, the first inner patch covers the outside of the first lower patch, and the first outer patch covers the outside of the first lower patch.
[0011] Through the above technical solution, both the first inner patch and the first outer patch cover the outside of the first lower patch, covering the outside of the left fabric strip, enhancing the straightness of the fabric edge shape. When used for thin (single-layer) fabrics (such as sunscreen clothing), it is easier to sew, does not arch, reduces the zipper edge wrapping process in the garment factory, has no rough feeling when directly contacting the skin, has a more beautiful appearance, and the reinforcement belt for the fabric edge has a good shrinkage rate, which can be controlled within 1%.
[0012] Preferably, the width of the left fabric strip is 12 mm - 18 mm, and the width of the left chain teeth is 4.2 mm - 5 mm.
[0013] Through the above technical solution, the widths of the left fabric strip and the left chain teeth are very narrow, and the structure of the nylon zipper is small and delicate.
[0014] Preferably, the left chain teeth and the right chain teeth are arranged in an alternating pattern, and polyurethane coatings are applied to the surfaces of both the left chain teeth and the right chain teeth.
[0015] Through the above technical solution, polyurethane coatings are applied to the surfaces of both the left chain teeth and the right chain teeth, which can improve the abrasion resistance of the chain teeth and increase the service life of the chain teeth.
[0016] Compared with the prior art, the present utility model provides a nylon zipper with an injection-molded edge, having the following beneficial effects:
[0017] 1. For the nylon zipper with an injection-molded edge, the first lower patch, the first inner patch, and the first outer patch are all fixed to the left fabric strip through injection molding of the edge, increasing the stability of the fabric edge. Thus, the nylon zipper is not prone to arching when sewing thin fabrics, reducing subsequent processes and costs. Both the first inner patch and the first outer patch cover the outside of the first lower patch, covering the outside of the left fabric strip, enhancing the straightness of the fabric edge shape. When used for thin (single-layer) fabrics (such as sunscreen clothing), it is easier to sew, does not arch, reduces the zipper edge wrapping process in the garment factory, has no rough feeling when directly contacting the skin, has a more beautiful appearance, and the reinforcement belt for the fabric edge has a good shrinkage rate, which can be controlled within 1%. Polyurethane coatings are applied to the surfaces of both the left chain teeth and the right chain teeth, which can improve the abrasion resistance of the chain teeth and increase the service life of the chain teeth. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1 Schematic diagram of the three-dimensional structure of the present utility model;
[0019] Figure 2 Schematic diagram of the top view structure of the present utility model;
[0020] Figure 3 Schematic diagram of the enlarged structure of the present utility model Figure 1 ;
[0021] Figure 4 Schematic diagram of the enlarged structure of the present utility model Figure 2 ;
[0022] Figure 5 Schematic diagram of the enlarged structure of the present utility model Figure 3 。
[0023] Wherein: 1, left cloth tape; 2, left chain teeth; 3, fixing pin; 4, socket; 5, lower attaching cloth one; 6, inner attaching cloth one; 7, outer attaching cloth one; 8, right cloth tape; 9, right chain teeth; 10, plug pin; 11, lower attaching cloth two; 12, inner attaching cloth two; 13, outer attaching cloth two; 14, zipper head. Specific embodiments
[0024] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model.
[0025] Embodiment 1: As Figures 1-5 shown, a nylon zipper with an injection-molded edge provided by the present utility model includes a left cloth tape 1, a left chain teeth 2 is fixedly stitched and connected to the right side of the left cloth tape 1, a fixing pin 3 is fixedly connected to the lower end of the left chain teeth 2, a socket 4 is fixedly connected to the lower end of the fixing pin 3, a lower attaching cloth one 5 is wrapped around the lower end of the left cloth tape 1, an inner attaching cloth one 6 is wrapped around the lower end of the left cloth tape 1, an outer attaching cloth one 7 is wrapped around the left side of the left cloth tape 1, a right cloth tape 8 is arranged on the right side of the left cloth tape 1, a right chain teeth 9 is fixedly stitched and connected to the left side of the right cloth tape 8, a plug pin 10 is fixedly connected to the lower end of the right chain teeth 9, a lower attaching cloth two 11 is wrapped around the lower end of the right cloth tape 8, an inner attaching cloth two 12 is wrapped around the lower end of the right cloth tape 8, an outer attaching cloth two 13 is wrapped around the right side of the right cloth tape 8, and a zipper head 14 is arranged between the left chain teeth 2 and the right chain teeth 9.
[0026] Specifically, the lower patch 5, the inner patch 6, and the outer patch 7 are all fixed to the left cloth tape 1 by injection molding edge wrapping, and the lower patch 11, the inner patch 12, and the outer patch 13 are all fixed to the right cloth tape 8 by injection molding edge wrapping. The advantage is that the lower patch 5, the inner patch 6, and the outer patch 7 are all fixed to the left cloth tape 1 by injection molding edge wrapping, which increases the stability of the cloth edge, so that the nylon zipper is not easy to arch when sewing thin fabrics, reducing subsequent processes and costs.
[0027] Specifically, the structures of the lower patch 5, the inner patch 6, the outer patch 7 are symmetrically the same as those of the lower patch 11, the inner patch 12, and the outer patch 13. The advantage is that the structures of the lower patch 5, the inner patch 6, the outer patch 7 are symmetrically the same as those of the lower patch 11, the inner patch 12, and the outer patch 13, which is convenient for production.
[0028] Specifically, the inner patch 6 covers the outside of the lower patch 5, and the outer patch 7 covers the outside of the lower patch 5. The advantage is that both the inner patch 6 and the outer patch 7 cover the outside of the lower patch 5, covering the outside of the left cloth tape 1, enhancing the straightness of the cloth edge shape. When used for thin (single-layer) fabrics (such as sunscreen clothing), it is easier to sew, will not arch, reducing the zipper edge wrapping process in the garment factory. It will not have a rough feeling when directly contacting the skin, with a more beautiful appearance, and the reinforcement belt for the cloth edge has a good shrinkage rate, which can be controlled within 1%.
[0029] Embodiment 2: As Figures 2-5 shown, as an improvement over the previous embodiment.
[0030] Specifically, the width of the left cloth tape 1 is 12 mm to 18 mm, and the width of the left chain teeth 2 is 4.2 mm to 5 mm. The advantage is that the width of the left cloth tape 1 and the width of the left chain teeth 2 are very narrow, and the structure of the nylon zipper is small and delicate.
[0031] Specifically, the left chain teeth 2 and the right chain teeth 9 are arranged in an alternating pattern, and both the surfaces of the left chain teeth 2 and the right chain teeth 9 are coated with a polyurethane coating. The advantage is that both the surfaces of the left chain teeth 2 and the right chain teeth 9 are coated with a polyurethane coating, which can improve the wear resistance of the chain teeth and increase the service life of the chain teeth.
[0032] Working principle: The lower patch 5, the inner patch 6 and the outer patch 7 are all fixed to the left tape 1 by injection molding edge wrapping, which increases the stability of the fabric edge. As a result, the nylon zipper is not prone to arching when sewing thin fabrics, reducing subsequent processes and costs. During production, first wrap the lower patch 5 around the lower end of the left tape 1 and fix it by injection molding edge wrapping. Then wrap both the inner patch 6 and the outer patch 7 around the outside of the lower patch 5 and fix them by injection molding edge wrapping to wrap the outside of the left tape 1, enhancing the straightness of the fabric edge shape. When the nylon zipper is used for thin (single-layer) fabrics (such as sunscreen clothing), it is easier to sew, will not arch, reduces the zipper edge wrapping process for garment factories, has no rough feeling when directly contacting the skin, has a more beautiful appearance, and the reinforcing tape for the fabric edge has a good shrinkage rate, which can be controlled within 1%. Polyurethane coatings are applied to the surfaces of the left chain teeth 2 and the right chain teeth 9, which can improve the wear resistance of the chain teeth and increase the service life of the chain teeth.
[0033] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A nylon zipper with injection-molded edging, comprising a left cloth tape (1), characterized in that: The right side of the left cloth belt (1) is fixedly connected to a left chain tooth (2), the lower end of the left chain tooth (2) is fixedly connected to a fixing pin (3), the lower end of the fixing pin (3) is fixedly connected to a socket (4), the lower end of the left cloth belt (1) is covered with a lower patch (5), the lower end of the left cloth belt (1) is covered with an inner patch (6), the left side of the left cloth belt (1) is covered with an outer patch (7), and the right side of the left cloth belt (1) is provided with a right cloth The right cloth tape (8) is sewn and connected with a right chain tooth (9) on the left side, and a latch (10) is fixedly connected to the lower end of the right chain tooth (9). The lower end of the right cloth tape (8) is covered with a lower patch cloth (11), the lower end of the right cloth tape (8) is covered with an inner patch cloth (12), and the right side of the right cloth tape (8) is covered with an outer patch cloth (13). A zipper head (14) is arranged between the left chain tooth (2) and the right chain tooth (9).
2. A nylon zipper with injection-molded edging according to claim 1, characterized in that: The lower patch one (5), the inner patch one (6) and the outer patch one (7) are all fixed to the left cloth belt (1) by injection molding, and the lower patch two (11), the inner patch two (12) and the outer patch two (13) are all fixed to the right cloth belt (8) by injection molding.
3. A nylon zipper with injection-molded edging according to claim 1, characterized in that: The structures of the lower patch 1 (5), the inner patch 1 (6), the outer patch 1 (7) and the lower patch 2 (11), the inner patch 2 (12), and the outer patch 2 (13) are symmetrical and identical.
4. The nylon zipper with injection-molded edging according to claim 1, characterized in that: The inner patch one (6) is wrapped around the outer side of the lower patch one (5), and the outer patch one (7) is wrapped around the outer side of the lower patch one (5).
5. The nylon zipper with injection-molded edging according to claim 1, characterized in that: The width of the left cloth tape (1) is 12 mm to 18 mm, and the width of the left coupling tooth (2) is 4.2 mm to 5 mm.
6. The nylon zipper with injection-molded edging according to claim 1, characterized in that: The left link teeth (2) and the right link teeth (9) are arranged in a staggered manner, and the surfaces of the left link teeth (2) and the right link teeth (9) are both coated with a polyurethane coating.
Citation Information
Patent Citations
Smooth structure of nylon zipper
CN215075925U