A pocket zipper mounting structure
By using a double-sided adhesive composite structure and a base fabric layer in the pocket zipper installation, the problems of exposed stitching and frayed edges are solved, achieving an aesthetically pleasing effect without exposed stitching and improved durability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SANLIUYIDU (FUJIAN) SPORTS GOODS CO LTD
- Filing Date
- 2025-06-20
- Publication Date
- 2026-07-21
AI Technical Summary
In existing technologies, pocket zipper installation has the risks of exposed stitching and frayed edges, and is also costly.
The zipper is made of double-sided adhesive composite structure, with perforations and hidden stitching at the bag opening. Combined with the base fabric layer and the main material, it ensures reliable adhesion between the zipper and the main material, avoiding exposed stitching and frayed edges.
It achieves an aesthetically pleasing effect with no exposed seams, improves the durability and appearance of clothing, reduces production costs, and avoids problems such as frayed edges and rough edges.
Smart Images

Figure CN224522518U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of clothing technology, and in particular to a zipper mounting structure for a pocket. Background Technology
[0002] Currently, there are two main methods for installing zippers on pockets in the market: One method involves sewing the zipper into the inner fold of the main material at the pocket opening, then attaching the zipper to the main material, and securing the pocket opening with visible stitching at both ends. After that, a heat-sealed strip is applied to the zipper. This method results in some visible stitching being exposed on the outside of the main material, and the heat-sealed strip also increases costs. The other method involves laser-cutting the opening and then gluing the zipper in place. This method is convenient to operate, but there is a risk of the edges coming undone. Utility Model Content
[0003] The purpose of this utility model is to provide a zipper mounting structure for a pocket, which has no exposed stitching on the outside of the main material and no risk of frayed edges.
[0004] To achieve the above objectives, this utility model discloses a zipper mounting structure for a pocket, comprising a main material, a zipper, and a double-sided adhesive composite structure. The main material has a pocket opening, and the double-sided adhesive composite structure has a perforated hole adapted to the shape of the pocket opening, with the perforated hole facing the pocket opening. The outer edge of the pocket opening has a first seam allowance, and the outer edge of the perforated hole has a second seam allowance, which are blind-stitched together. The double-sided adhesive composite structure is disposed between the inner surface of the main material and the zipper, and includes a first adhesive layer, a base fabric layer, and a second adhesive layer that are sequentially stacked and bonded together. The first adhesive layer is used to bond to the inner surface of the main material, and the second adhesive layer is used to bond to the zipper.
[0005] With the above-mentioned setup, the bag opening is seamlessly sewn and bonded to the double-sided adhesive composite structure, and the zipper is bonded to the second adhesive layer. This not only ensures that the bag opening will not fray, but also guarantees the strength of the bag opening due to the base fabric layer in the double-sided adhesive composite structure, making it less likely to tear when the zipper is pulled. Furthermore, this design eliminates exposed seams on the outside of the main material, enhancing the garment's appearance.
[0006] Preferably, the width of both the first seam allowance and the second seam allowance is not less than 0.1 cm. This design ensures that the double-sided tape is reliably sewn together with the main material, reduces the likelihood of unraveling, and maintains the aesthetic appearance of the main material.
[0007] Preferably, the outer edge of the zipper does not extend beyond the outer edge of the double-sided adhesive. This arrangement ensures reliable adhesion of the zipper.
[0008] Preferably, the distance between the edge of the zipper and the edge of the double-sided adhesive is 0.1-0.3 cm. This arrangement ensures that the zipper is reliably bonded and avoids wasting the double-sided adhesive composite structure.
[0009] Preferably, both the bag opening and the perforation are oblong. This design makes the ends of the bag opening less prone to tearing.
[0010] Preferably, of the zipper and the double-sided adhesive, at least the corners of the double-sided adhesive are rounded. This design improves wearing comfort.
[0011] Preferably, the main material is a top, trousers, or skirt.
[0012] This utility model has the following beneficial effects:
[0013] This invention replaces the traditional method of applying heat-sealing strips to the zipper, eliminating the additional cost and processing steps of heat-sealing strips and reducing production costs. The reinforcement effect of sewing the base fabric layer to the main material solves the problem of frayed edges that easily occur at laser-cut openings, improving the durability and aesthetics of the product. Furthermore, this invention effectively avoids the burr edge phenomenon common in traditional processes, ensuring neat and flat seams in garments. The structure of this invention is suitable for zipper installation processes in various garments, enabling efficient and reliable bonding between the main material and the zipper during garment manufacturing. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the present invention (front of the main material).
[0015] Figure 2 This is a schematic diagram of the present invention (back side of the main material).
[0016] Figure 3 This is a cross-sectional view of the present invention.
[0017] Figure 4 This is a diagram showing the double-sided tape seam on the front side of the main material.
[0018] Figure 5 In order to be in Figure 4 A schematic diagram showing the result of laser cutting on the original material.
[0019] Note: For easier viewing. Figure 3 The main material, double-sided tape, and zipper have been thickened. Figure 3-5 The dashed line represents the stitching.
[0020] Explanation of symbols for main components:
[0021] Main material 10, bag opening 11, first seam allowance 12;
[0022] Double-sided adhesive composite structure 20, hollow hole 21, second seam allowance 22, first adhesive layer 23, base fabric layer 24, second adhesive layer 25;
[0023] Zipper 30. Detailed Implementation
[0024] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments.
[0025] like Figure 1-5 As shown, this utility model discloses a zipper mounting structure for a pocket, which includes a main material 10, a zipper 30, and a double-sided adhesive composite structure 20. The main material 10 can be clothing such as a top, pants, or skirt that requires pockets, or it can also be an accessory such as a backpack or tote bag.
[0026] Both the double-sided adhesive composite structure 20 and the zipper 30 are located on the back of the main material 10, and the zipper 30 connects to the main material 10 through the double-sided adhesive composite structure 20. A bag opening 11 is provided on the main material 10, and a perforated hole 21, matching the shape of the bag opening 11, is provided on the double-sided adhesive composite structure 20, directly opposite the bag opening 11. Both the bag opening 11 and the perforated hole 21 are oblong. A first seam allowance 12 is provided along the outer edge of the bag opening 11, and a second seam allowance 22 is provided along the outer edge of the perforated hole 21. The first seam allowance 12 and the second seam allowance 22 are blind-stitched together, meaning that the first seam allowance 12 and the second seam allowance 22 are placed between the main material 10 and the double-sided adhesive composite structure 20. This avoids visible stitching on the outside of the main material 10, and ensures that the bag opening 11 is free from fraying after the double-sided adhesive composite structure 20 is bonded to the main material 10. To ensure the above effect is achieved and to prevent the seams from coming undone, the width W of both the first seam allowance 12 and the second seam allowance 22 must be no less than 0.1cm.
[0027] The specific manufacturing process is as follows: Figure 4 As shown, firstly, the double-sided adhesive composite structure 20 is placed on the front (outer or outer) side of the main material 10; then, the double-sided adhesive composite structure 20 and the main material 10 are sewn together around the shape of the bag opening 11; next, the main material 10 is laser-cut or hand-cut to obtain the bag opening 11 and the perforation 21, with the distance between the cutting line / cutting line and the sewing line not less than 0.1cm (i.e., the width W of the first seam allowance 12 and the second seam allowance 22), thus preserving the first seam allowance 12 and the second seam allowance 22, as shown. Figure 5 As shown; finally, flip the double-sided adhesive composite structure 20 onto the back (inner) side of the main material 10 and adhere it, thus completing the connection between the double-sided adhesive composite structure 20 and the main material 10. After flipping the double-sided adhesive composite structure 20 onto the back side of the main material 10, peel off the release paper on the double-sided adhesive composite structure 20 to avoid interference during operation.
[0028] In this case, the double-sided adhesive composite structure 20 includes a first adhesive layer 23, a base fabric layer 24, and a second adhesive layer 25, which are stacked and bonded together in sequence. The first adhesive layer 23 is attached to and bonded to the inner surface of the main material 10. After the double-sided adhesive composite structure 20 is folded over to the back (inner surface) of the main material 10, the release paper on the first adhesive layer 23 can be peeled off to bond the back of the main material 10. The second adhesive layer 25 is attached to and bonded to the zipper 30. After the first adhesive layer 23 is bonded to the back of the main material 10, the release paper on the second adhesive layer 25 can be peeled off to bond the zipper 30, making the operation very convenient. The base fabric layer 24 provides good stability for the shape of the bag opening 11.
[0029] To ensure that the zipper 30 is reliably bonded, the outer edge of the zipper 30 must not exceed the outer edge of the double-sided adhesive composite structure 20. Furthermore, the distance L between the edge of the zipper 30 and the edge of the double-sided adhesive composite structure 20 must be 0.1-0.3cm, preferably L=0.2cm. This ensures reliable connection while avoiding waste of the double-sided adhesive composite structure 20.
[0030] In addition, to improve wearing comfort, the corners of the zipper 30 and the double-sided adhesive composite structure 20 are all rounded.
[0031] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present utility model should be included within the protection scope of the present utility model.
Claims
1. A zipper mounting structure for a pocket, characterized in that: The device includes a main material (10), a zipper (30), and a double-sided adhesive composite structure (20). The main material (10) has a bag opening (11), and the double-sided adhesive composite structure (20) has a perforated hole (21) that matches the shape of the bag opening (11). The perforated hole (21) is positioned opposite the bag opening (11). The outer edge of the bag opening (11) has a first seam allowance (12), and the outer edge of the perforated hole (21) has a second seam allowance (22). The first seam allowance (12) and the second seam allowance (22) are sewn together by a blind stitch. The double-sided adhesive composite structure (20) is positioned between the main material (10) and the zipper (30). The double-sided adhesive composite structure (20) includes a first adhesive layer (23), a base fabric layer (24), and a second adhesive layer (25) that are stacked and bonded together in sequence. The first adhesive layer (23) is used to bond to the inner surface of the main material (10), and the second adhesive layer (25) is used to bond to the zipper (30).
2. The zipper mounting structure for the pocket according to claim 1, characterized in that: The width of the first seam allowance (12) and the second seam allowance (22) is not less than 0.1cm.
3. The zipper mounting structure for the pocket according to claim 1, characterized in that: The outer edge of the zipper (30) does not extend beyond the outer edge of the double-sided adhesive composite structure (20).
4. The zipper mounting structure for the pocket according to claim 3, characterized in that: The distance between the edge of the zipper (30) and the edge of the double-sided adhesive composite structure (20) is 0.1-0.3cm.
5. The zipper mounting structure for a pocket according to claim 1, characterized in that: The bag opening (11) and the perforated hole (21) are both oblong.
6. The zipper mounting structure for a pocket according to claim 1, characterized in that: In the zipper (30) and double-sided adhesive composite structure (20), at least the corners of the double-sided adhesive composite structure (20) are rounded.
7. The zipper mounting structure for a pocket according to claim 1, characterized in that: The main material (10) is a top, pants, or skirt.