Edge finishing structure for a fabric and article having a fastener

Abstract

The application discloses a fabric edge closing structure and an article with a fastener, and relates to the field of fabric edge closing and fastener installation. The fabric edge closing structure comprises a fabric body, the fabric body having adjacent side edges and a bottom edge; the side edges are stacked on one side surface of the fabric body, and the bottom edge is stacked on the same side surface of the fabric body; the side edges and the bottom edge have an overlapping area, the overlapping area has a sewing line, the sewing line extends from a second folding line to the edge of the overlapping area in a direction gradually away from a first folding line and simultaneously separates the side edges and the bottom edge into two parts; the side edges have a first folded edge, the first folded edge is stacked on one side of the side edge facing the fabric body, and the bottom edge has a second folded edge, the second folded edge is stacked on one side of the bottom edge facing the fabric body. The application can solve the problems of unsmooth puller caused by the thickness difference of the closing area and material leakage during injection molding of the fastener.

Description

Technical Field

[0001] This application belongs to the technical field of fabric edge finishing and chain tooth installation, specifically relating to a fabric edge finishing structure and an article with chain teeth. Background Technology

[0002] In related technologies, the chain teeth are typically fixed to a fabric strip to form a chain, which is then sewn to the edge of the garment. However, with increasing environmental awareness, solutions have emerged that directly fix the chain teeth to the garment fabric pieces. But some problems have arisen during implementation.

[0003] In garment manufacturing, the edges and bottom edges of the cut pieces need to be hemmed. After hemming, an overlapping area forms at the corners of the sides and bottom edges, causing this area to be thicker than other areas. This hemming method has no impact on zipper teeth that are fixed using a chain strap. However, when the zipper teeth are fixed in the overlapping area, the thickness difference makes it difficult for the zipper pull to move smoothly, affecting the user experience. In addition, during injection molding of the zipper teeth, the thickness difference can also lead to incomplete mold closing, easily causing material leakage. Utility Model Content

[0004] The purpose of this application is to provide a fabric edge-sealing structure and an article with chain teeth, which can solve problems such as uneven zipper pull caused by thickness differences in the edge-sealing area and material leakage during injection molding of chain teeth.

[0005] To solve the above-mentioned technical problems, this application is implemented as follows:

[0006] This application provides a fabric edge finishing structure, including: a fabric body having adjacent side edges and a bottom edge;

[0007] The side edge is folded onto one side surface of the fabric body and forms a first fold line on the side edge of the fabric body; the bottom edge is folded onto the same side surface of the fabric body and forms a second fold line on the bottom edge of the fabric body.

[0008] There is an overlapping area between the end of the side edge near the bottom edge and the end of the bottom edge near the side edge. The overlapping area has a sewing line that sews the side edge and the bottom edge together. The sewing line extends from the second fold line to the edge of the overlapping area in a direction that gradually moves away from the first fold line, and at the same time divides the side edge and the bottom edge into two parts.

[0009] The side has a first folded edge formed by the sewing line, the first folded edge being folded over and placed on the side of the side facing the fabric body, and the bottom edge has a second folded edge formed by the sewing line, the second folded edge being folded over and placed on the side of the bottom edge facing the fabric body.

[0010] This application embodiment also provides an article with chain teeth, the article including chain teeth and the above-mentioned fabric edge-gathering structure;

[0011] The chain teeth are fixed to the area where the side of the fabric body is located.

[0012] In this embodiment, the first folded edge is placed on the side facing the fabric body, and the second folded edge is placed on the bottom side facing the fabric body. In this way, the area where the second folded edge is located and the area where the first folded edge is located will not overlap in the thickness direction of the fabric body. This can effectively prevent the formation of a large thickness area on the side near the bottom edge, which is beneficial to improving the thickness uniformity of the fabric body in the area where the side edge is located.

[0013] Based on the above settings, when the chain teeth are installed in the side area, it can be ensured that the thickness difference between the area of ​​the fabric body near the bottom edge and other areas of the side is small or even non-existent, further improving the consistency of chain tooth installation and effectively preventing the situation where inconsistent chain tooth installation due to thickness differences affects the smoothness of the zipper pull. In addition, since the thickness difference is small and there is no thickness difference, it can also overcome the problem of material leakage caused by poor mold closing during injection molding of chain teeth. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the first type of fabric disclosed in the embodiments of this application;

[0015] Figure 2 This is a schematic diagram of the process for forming a first type of fabric using a first edge-gathering method, as disclosed in the embodiments of this application.

[0016] Figure 3 This is a schematic diagram of the process of forming the first type of fabric using the second edge-sealing method disclosed in the embodiments of this application;

[0017] Figure 4 This is a schematic diagram of the process of forming the first type of fabric using the third edge-sealing method disclosed in the embodiments of this application;

[0018] Figure 5 This is a schematic diagram of the second type of fabric disclosed in the embodiments of this application;

[0019] Figure 6This is a schematic diagram of the process for forming the second type of fabric using the fourth edge-sealing method disclosed in the embodiments of this application;

[0020] Figure 7 This is a schematic diagram of the third type of fabric disclosed in the embodiments of this application;

[0021] Figure 8 This is a schematic diagram of the process for forming the third type of fabric using the fifth edge-sealing method disclosed in the embodiments of this application;

[0022] Figure 9 This is a schematic diagram of the fourth type of fabric disclosed in the embodiments of this application;

[0023] Figure 10 This is a schematic diagram of the process for forming the fourth type of fabric using the sixth edge-sealing method disclosed in the embodiments of this application.

[0024] Explanation of reference numerals in the attached figures:

[0025] 10-The fabric itself;

[0026] 20 - Side edge; 21 - First folded edge;

[0027] 30 - Bottom edge; 31 - Second fold edge;

[0028] 40 - First chamfer; 41 - Angular notch;

[0029] 50 - Folded angle; 60 - Second chamfered angle; 70 - Bottom angle;

[0030] b - First fold line; c - Second fold line; d - Third fold line; e - Fourth fold line; f - Sewing line; g - Cutting line; h1 - Crease line; h2 - Crease. Detailed Implementation

[0031] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0032] The terms "first," "second," etc., used in the specification and claims of this application are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such use of data can be interchanged where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first," "second," etc., are generally of the same class and the number of objects is not limited; for example, a first object can be one or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0033] The embodiments of this application will be described in detail below with reference to the accompanying drawings and specific examples and application scenarios.

[0034] refer to Figures 1 to 10 This application discloses a fabric edge-sealing structure, which includes a fabric body 10 having adjacent side edges 20 and bottom edges 30. The side edges 20 are located at the side edges of the fabric body 10, and the bottom edges 30 are located at the bottom edges of the fabric body 10. Optionally, both the side edges 20 and the bottom edges 30 can be elongated strips. In some more specific embodiments, the side edges 20 can extend along a first direction, and the bottom edges 30 can extend along a second direction. The first and second directions can be perpendicular to each other; however, they can also be non-perpendicular, depending on the actual edge-sealing requirements.

[0035] The side edge 20 is folded over and placed on one side surface of the fabric body 10, forming a first fold line b on the side edge of the fabric body 10. Optionally, the side edge 20 can be folded towards the inside of the fabric body 10, so that the side edge 20 overlaps the inner surface of the fabric body 10. In this case, the fabric body 10 can cover the side edge 20, which helps to improve the overall appearance of the fabric. Of course, in other embodiments, the side edge 20 can also be folded towards the outside of the fabric body 10, so that the side edge 20 overlaps the outer surface of the fabric body 10. It should be noted that after the side edge 20 is folded over, a crease line will be formed on the side edge of the fabric body 10, which is the first fold line b.

[0036] The bottom edge 30 is folded over and placed on the same side surface of the fabric body 10, forming a second fold line c at the bottom edge of the fabric body 10. Optionally, the bottom edge 30 can be folded towards the inside of the fabric body 10, so that the bottom edge 30 overlaps the inner surface of the fabric body 10. In this case, the fabric body 10 can cover the bottom edge 30, which helps to improve the overall appearance of the fabric. Of course, in other embodiments, the bottom edge 30 can also be folded towards the outside of the fabric body 10, so that the bottom edge 30 overlaps the outer surface of the fabric body 10. It should be noted that after the bottom edge 30 is folded over, a crease line will be formed at the bottom edge of the fabric body 10, which is the second fold line c.

[0037] The end of the side edge 20 near the bottom edge 30 and the end of the bottom edge 30 near the side edge 20 may have an overlapping area. There is a sewing line f in the overlapping area. The side edge 20 and the bottom edge 30 can be sewn together by the sewing line f to prevent the side edge 20 and the bottom edge 30 from being folded open relative to the fabric body 10 and affecting the appearance performance.

[0038] Furthermore, the sewing line f can extend from the second fold line c to the edge of the overlapping area in a direction gradually moving away from the first fold line b, simultaneously dividing the side edge 20 and the bottom edge 30 into two parts. Based on this, both sewing and fixing of the side edge 20 and the bottom edge 30 can be achieved, and the side edge 20 and the bottom edge 30 can be separated.

[0039] Furthermore, the end of the side edge 20 near the bottom edge 30 may have a first folded edge 21, which is formed by a sewing line f and is folded over to face the fabric body 10. Similarly, the end of the bottom edge 30 near the side edge 20 may have a second folded edge 31, which is also formed by a sewing line f and is folded over to face the fabric body 10. Based on this, the area containing the second folded edge 31 and the area containing the first folded edge 21 will not overlap in the thickness direction of the fabric body 10, thereby effectively preventing the formation of a large thickness area on the side edge 20 near the bottom edge 30, and improving the thickness uniformity of the fabric body 10 in the area containing the side edge 20.

[0040] Based on the above settings, when the chain teeth are installed in the area where the side 20 is located, it can be ensured that the thickness difference between the area of ​​the fabric body 10 near the bottom edge 30 of the side 20 and other areas of the side 20 is small or even non-existent. This further improves the consistency of chain tooth installation and effectively prevents the situation where inconsistent chain tooth installation due to thickness differences affects the smoothness of the zipper pull. In addition, since the thickness difference is small and there is no thickness difference, the problem of material leakage due to poor mold closing during the injection molding of chain teeth can also be overcome.

[0041] In some embodiments, the angle between the extending direction of the sewing thread f and the extending direction of the second fold line c can be 45°. Based on this, the side edge 20 and the bottom edge 30 can be divided into two uniform parts by the sewing thread f. On the one hand, this helps to improve the uniformity of the pulling force exerted by the sewing thread f on the side edge 20 and the bottom edge 30, thereby preventing wrinkles from appearing on either side edge 20 or the bottom edge 30 due to one side experiencing greater force than the other. On the other hand, it also helps to improve the appearance of the sewn area, thereby improving the quality of the product.

[0042] In other embodiments, the angle between the extension direction of the sewing thread f and the extension direction of the second fold line c can also be non-45°, such as 20°, 30°, 40°, 50°, 60°, 75°, 80°, etc., and of course, other degrees are also possible, which are not specifically limited here. Based on this, the sewing form of the sewing thread f can be adaptively changed according to actual needs, thereby improving the applicability of the fabric edge finishing structure.

[0043] In some embodiments, the starting point of the sewing line f may coincide with the intersection of the first fold line b and the second fold line c. In this case, the bottom edge 30 only overlaps with the first fold line b of the side edge 20 at the point where the starting point and the intersection point coincide, while in areas other than the point of overlap, it is far away from the first fold line b of the side edge 20. This allows the overlapping area to avoid the first fold line b as much as possible, ensuring that the thickness difference between the area of ​​the fabric body 10 near the bottom edge 30 of the side edge 20 and other areas of the side edge 20 is small or even non-existent, further improving the consistency of the chain tooth installation.

[0044] In other embodiments, the starting point of the sewing line f is offset from the intersection of the first fold line b and the second fold line c. In this case, all areas of the bottom edge 30 are far away from the first fold line b of the side edge 20, so that the overlapping area can completely avoid the first fold line b, ensuring that the thickness difference between the area of ​​the fabric body 10 near the bottom edge 30 end of the side edge 20 and other areas of the side edge 20 is small or even non-existent, further improving the consistency of the chain tooth installation.

[0045] In some embodiments, the first fold 21 and the second fold 31 may be symmetrically arranged with respect to the sewing line f axis; in other embodiments, the first fold 21 and the second fold 31 may be symmetrically arranged with respect to the midpoint of the sewing line f. Otherwise, the first fold 21 and the second fold 31 may be arranged in other ways, which are not specifically limited here.

[0046] Based on the above settings, the appearance of the first fold 21 and the second side can be improved, thereby improving the overall quality of the fabric edge finishing structure.

[0047] Optionally, both the first fold 21 and the second fold 31 can be trapezoidal folds; or, both the first fold 21 and the second fold 31 can be triangular folds. In other embodiments, the first fold 21 and the second fold 31 can also be other shapes, which are not specifically limited here.

[0048] Based on the above settings, the cross-sectional area of ​​the first fold 21 and the second fold 31 at the end away from the sewing line f can be reduced. On the one hand, this can avoid interference during the folding process, and on the other hand, it can help to make the first fold 21 deviate from the first fold line b, and the second fold 31 not protrude from the edge of the bottom edge 30 away from the second fold line c.

[0049] In some embodiments, the width of the side edge 20 folded over the fabric body 10 can be equal to the width of the bottom edge 30 folded over the fabric body 10. This makes the overlapping area between the side edge 20 and the bottom edge 30 more uniform, thereby ensuring that the sewing line f can completely sew the side edge 20 and the bottom edge 30 at the overlapping area. This avoids the situation where the bottom edge 30 or the side edge 20 is not sewn due to the small fold width of the side edge 20 or the small fold width of the bottom edge 30.

[0050] To form the aforementioned fabric edge-finishing structure, embodiments of this application also disclose a first method for edge-finishing fabric, such as... Figure 1 , Figure 2 , Figures 5 to 10 The fabric may include a fabric body 10, which has adjacent side edges 20 and bottom edges 30, as detailed in the above-described fabric edge-gathering structure.

[0051] To prevent the side edge 20 and bottom edge 30 from interfering with each other during folding, in this embodiment, the side edge 20 and bottom edge 30 may have a first chamfer 40. That is, a portion of material is removed from the corner of the fabric body 10 (or the bottom corner 70 below) to form the first chamfer 40. Because a portion of material is removed, the side edge 20 and bottom edge 30 are separated at this point, preventing them from interfering with each other during folding; furthermore, it also helps to reduce the overlapping area of ​​the side edge 20 and bottom edge 30 after folding. It should be noted that the shape of the first chamfer 40 can be set according to actual needs and is not specifically limited here. Additionally, the side edge 20 and bottom edge 30 may intersect at the first chamfer 40 to form a vertex.

[0052] Based on the above structure, the methods for finishing the fabric edges include:

[0053] Fold the bottom edge 30 to the side edge 20 along the third fold line d passing through the vertex, so that the side edge 20 and the bottom edge 30 overlap. Optionally, after the bottom edge 30 is folded to the side edge 20 along the third fold line d, the edge line of the bottom edge 30 may or may not overlap with the edge line of the side edge 20, which can be set according to the actual situation.

[0054] A stitch f is sewn along the overlapping area, extending from the apex to the edge of the overlapping area. This partially sewn and secured the bottom edge 30 and the side edge 20, allowing a bag to be formed between them. Additionally, the stitch f can also divide the side edge 20 and the bottom edge 30 into two parts, facilitating folding of the side edge 20 and the bottom edge 30.

[0055] Furthermore, under the separating effect of the sewing line f, a first folded edge 21 can be formed at the end of the side 20 near the first cut angle 40. The first folded edge 21 formed by the sewing line f is folded along the sewing line f and placed on the side of the side 20 away from the bottom edge 30.

[0056] Correspondingly, under the separating effect of the sewing line f, a second folded edge 31 can also be formed at the end of the bottom edge 30 near the first chamfer 40. The second folded edge 31 formed by the sewing line f separating the bottom edge 30 is folded to the side of the bottom edge 30 away from the side edge 20.

[0057] The bag is turned inside out, so that the side edge 20 is folded over and placed on one side surface of the fabric body 10, forming a first fold line b on the side edge of the fabric body 10, and the first folded edge 21 is folded over and placed on the side of the side edge 20 facing the fabric body 10. Based on this, the first folded edge 21 can be located inside the fabric body 10 and covered by the fabric body 10, preventing the first folded edge 21 from being exposed and affecting the appearance.

[0058] At the same time, turning the bag inside out causes the bottom edge 30 to be folded onto the same side surface of the fabric body 10, forming a second fold line c at the bottom edge of the fabric body 10, and the second folded edge 31 is folded onto the side of the bottom edge 30 facing the fabric body 10. Based on this, the second folded edge 31 can be located inside the fabric body 10 and concealed by the fabric body 10, preventing the second folded edge 31 from being exposed and affecting the appearance.

[0059] Based on the above edge-gathering method, the fabric body 10 can be transformed into a fabric edge-gathering structure, and the area where the second fold 31 is located and the area where the first fold 21 is located will not overlap in the thickness direction of the fabric body 10. This can effectively prevent the side edge 20 from forming a large thickness area near the bottom edge 30, which is beneficial to improving the thickness uniformity of the fabric body 10 in the area where the side edge 20 is located.

[0060] In some embodiments, folding the bottom edge 30 to the side edge 20 along the third fold line d passing through the vertex and creating an overlapping area between the side edge 20 and the bottom edge 30 includes:

[0061] In the direction perpendicular to the fabric body 10, the projection of the bottom edge 30 and the projection of the side edge 20 can completely or partially overlap.

[0062] Based on this, such as Figure 1 , Figure 2 , Figures 5 to 8 As shown, when the bags are folded outwards, the end of the side edge 20 near the bottom edge 30 and the end of the bottom edge 30 near the side edge 20 can be symmetrically positioned with respect to the sewing line f axis to improve the appearance of the sewing area.

[0063] like Figure 9 and Figure 10 As shown, when they do not overlap, after turning the bag inside out, the end of side 20 near the bottom edge 30 and the end of bottom edge 30 near side 20 are not symmetrically arranged with respect to the sewing line f. For example, the end of side 20 near the bottom edge 30 and the end of bottom edge 30 near side are symmetrically arranged with respect to the center of the end point of the sewing line f; that is, the first folded edge 21 and the second folded edge 31 can be symmetrically arranged with respect to the center of the midpoint of the sewing line f.

[0064] refer to Figure 5 , Figure 6 , Figure 9 and Figure 10 In some embodiments, the first chamfer 40 can be a rectangular chamfer, in which case the third fold line d can pass through the diagonal of the rectangular chamfer.

[0065] refer to Figure 1 , Figure 2 , Figure 7 and Figure 8 In other embodiments, the first cut angle 40 can also be a right-angled triangle cut angle, and the fabric body 10 can be provided with an angled notch 41 at the hypotenuse of the right-angled triangle cut angle, with the vertex being the vertex of the angled notch 41.

[0066] Of course, the shape of the first chamfer 40 is not limited to this; it can also be other shapes, which are not specifically limited here.

[0067] Based on the different shapes of the first chamfer 40, the side 20 and the bottom 30 can each form a first fold 21 and a second fold 31 of corresponding shapes at the end near the first chamfer 40, so as to adapt to the needs of different working conditions.

[0068] In some embodiments, folding the bottom edge 30 to the side edge 20 along the third fold line d passing through the vertex and creating an overlapping area between the side edge 20 and the bottom edge 30 includes:

[0069] refer to Figure 1 , Figure 2 , Figure 5 and Figure 6 The edge of the bottom edge 30 can overlap with the edge of the side edge 20, so that the extension direction of the third fold line d and the extension direction of the second fold line c can form a 45° angle. Based on this, the area where the bottom edge 30 is located can completely cover the area where the side edge 20 is located. In this case, it can be ensured that the first fold edge 21 and the second fold edge 31 overlap, so that after the bag is turned outward, the first fold edge 21 and the second fold edge 31 can be symmetrically arranged with respect to the sewing line f axis, thereby improving the appearance of the first fold edge 21 and the second fold edge 31, so as to improve the overall quality of the fabric edge finishing structure.

[0070] refer to Figures 7 to 10 In other embodiments, the edge of the bottom edge 30 may extend beyond the edge of the side edge 20, so that the extension direction of the third fold line d forms an angle other than 45° with the extension direction of the second fold line c. For example, angles include 20°, 30°, 40°, 50°, 60°, 75°, and 80°. Of course, other angles are also possible, and no specific limitation is made here. In this case, the first fold edge 21 and the second fold edge 31 may coincide or they may not coincide, depending on actual needs.

[0071] In some embodiments, after folding the first folded edge 21 to the side of the side 20 opposite to the bottom edge 30, and after folding the second folded edge 31 to the side of the bottom edge 30 opposite to the side 20, and before turning the bag inside out, the edge-sealing method further includes:

[0072] The first folded edge 21 is ironed so that after folding, the first folded edge 21 can be attached to the side of the side 20 away from the bottom edge 30, preventing the first folded edge 21 from lifting relative to the side 20 and ensuring the stability of the first folded edge 21.

[0073] Furthermore, the second folded edge 31 is ironed so that after folding, the second folded edge 31 can be attached to the side of the bottom edge 30 away from the side edge 20, preventing the second folded edge 31 from lifting relative to the side of the bottom edge 30 and ensuring the stability of the second folded edge 31.

[0074] In some embodiments, after folding the side edge 20 onto one side surface of the fabric body 10 and folding the bottom edge 30 onto the same side surface of the fabric body 10, the hemming method further includes:

[0075] Iron the side 20 so that it can be firmly attached to the edge area of ​​one side surface of the fabric body 10, preventing the side 20 from lifting relative to the fabric body 10 and ensuring the stability of the side 20.

[0076] Furthermore, the bottom edge 30 is ironed to ensure that it is firmly attached to the bottom area of ​​the same side surface of the fabric body 10, preventing the bottom edge 30 from lifting relative to the fabric body 10 and ensuring the stability of the bottom edge 30.

[0077] To achieve the aforementioned fabric edge-finishing structure, embodiments of this application also disclose a second fabric edge-finishing method, such as... Figure 3 As shown. The fabric may include a fabric body 10, which has adjacent side edges 20 and bottom edges 30, as detailed in the relevant section on the fabric edge-gathering structure described above.

[0078] To prevent the side edge 20 and bottom edge 30 from interfering with each other during folding, in this embodiment, the side edge 20 and bottom edge 30 may have a first chamfer 40. That is, a portion of material is removed from the corner of the fabric body 10 (or the bottom corner 70 below) to form the first chamfer 40. Because a portion of material is removed, the side edge 20 and bottom edge 30 are separated at this point, preventing them from interfering with each other during folding; furthermore, it also helps to reduce the overlapping area of ​​the side edge 20 and bottom edge 30 after folding. It should be noted that the shape of the first chamfer 40 can be set according to actual needs and is not specifically limited here. Additionally, the side edge 20 and bottom edge 30 may intersect at the first chamfer 40 to form a vertex.

[0079] Based on the above structure, the methods for finishing the fabric edges include:

[0080] Fold the side edge 20 onto one side surface of the fabric body 10 and form a first fold line b on the side edge of the fabric body 10. Fold the bottom edge 30 onto the same side surface of the fabric body 10 and form a second fold line c on the bottom edge of the fabric body 10, so that there is an overlapping area between the end of the side edge 20 near the bottom edge 30 and the end of the bottom edge 30 near the side edge 20.

[0081] Within the overlapping area, along the crease line h1 extending from the vertex to the edge of the overlapping area, fold the end of the side edge 20 near the bottom edge 30 toward the fabric body 10, and fold the end of the bottom edge 30 near the side edge 20 toward the fabric body 10, so that both the side edge 20 and the bottom edge 30 form a crease h2 along the crease line h1.

[0082] Flatten the side edge 20 and bottom edge 30 relative to the fabric body 10 respectively;

[0083] Fold the bottom edge 30 to the side edge 20 along the third fold line d passing through the vertex so that there is an overlapping area between the side edge 20 and the bottom edge 30, and make the fold lines h2 of the side edge 20 and the bottom edge 30 coincide.

[0084] A stitch line f is formed by sewing along the crease h2. This partially sewn and secured the bottom edge 30 and the side edge 20, allowing the overlapping area of ​​the bottom edge 30 and the side edge 20 to form a bag. Additionally, the stitch line f can also divide the side edge 20 and the bottom edge 30 into two parts, facilitating folding of the side edge 20 and the bottom edge 30.

[0085] Furthermore, under the separating effect of the sewing line f, a first folded edge 21 can be formed at the end of the side 20 near the first cut angle 40. The first folded edge 21 formed by the sewing line f is folded along the sewing line f and placed on the side of the side 20 away from the bottom edge 30.

[0086] Correspondingly, under the separating effect of the sewing line f, a second folded edge 31 can also be formed at the end of the bottom edge 30 near the first chamfer 40. The second folded edge 31 formed by the sewing line f separating the bottom edge 30 is folded to the side of the bottom edge 30 away from the side edge 20.

[0087] The bag is turned inside out, so that the first fold 21 is folded and placed on the side 20 facing the fabric body 10, and the second fold 31 is folded and placed on the bottom edge 30 facing the fabric body 10. Based on this, the first fold 21 and the second fold 31 can be located inside the fabric body 10 and covered by the fabric body 10, preventing the first fold 21 and the second fold 31 from being exposed and affecting the appearance.

[0088] Based on the above edge-gathering method, the fabric body 10 can be transformed into a fabric edge-gathering structure, and the area where the second fold 31 is located and the area where the first fold 21 is located will not overlap in the thickness direction of the fabric body 10. This can effectively prevent the side edge 20 from forming a large thickness area near the bottom edge 30, which is beneficial to improving the thickness uniformity of the fabric body 10 in the area where the side edge 20 is located.

[0089] It should be noted here that the main difference between the second edge-finishing method and the first edge-finishing method mentioned above is:

[0090] The first edge-finishing method involves the following steps: first, fold the bottom edge 30 to the side edge 20, then sew the bottom edge 30 and the side edge 20, then fold it to form the first fold 21 and the second fold 31, then turn the bag inside out, and finally fold the side edge 20 and the bottom edge 30 to the same side of the fabric body 10 to form the fabric edge-finishing structure.

[0091] The second edge-finishing method involves the following steps: First, fold the side edge 20 and bottom edge 30 onto the same side of the fabric body 10. Then, flatten the side edge 20 and bottom edge 30. Next, fold the bottom edge 30 to the side edge 20. Then, sew the side edge 20 and bottom edge 30. Then, fold them to form the first fold 21 and the second fold 31. Finally, turn the bag outward to form the fabric edge-finishing structure.

[0092] In addition, the corresponding solutions in the first edge-finishing method can also be applied to the second edge-finishing method, as long as there is no contradiction.

[0093] To achieve the aforementioned fabric edge-finishing structure, embodiments of this application also disclose a third method for edge-finishing fabric, such as... Figure 4 As shown. The fabric may include a fabric body 10, which has adjacent side edges 20 and a bottom edge 30, as detailed in the fabric hemming structure section above. Additionally, a bottom angle 70 may be present between the side edges 20 and the bottom edge 30.

[0094] Based on the above structure, the methods for finishing the fabric edges include:

[0095] Fold the bottom edge 30 along the fourth fold line e passing through the vertex of the bottom corner 70 and place it on the side edge 20, so that there is an overlapping area between the side edge 20 and the bottom edge 30. Optionally, after the bottom edge 30 is folded along the fourth fold line e to the side edge 20, the edge line of the bottom edge 30 may or may not coincide with the edge line of the side edge 20, which can be set according to the actual situation.

[0096] A stitch line f is sewn into the overlapping area, which sews and secures the side edge 20 and the bottom edge 30 to form a bag.

[0097] Within the overlapping area, the region including the bottom corner 70 is cut off along the cutting line g, wherein the cutting line g is spaced a certain distance from the sewing line f and extends in the same direction as the sewing line f. Based on this, a first fold 21 can be formed on the side edge 20 in the region between the cutting line g and the sewing line f, and correspondingly, a second fold 31 can be formed on the bottom edge 30 in the region between the cutting line g and the sewing line f.

[0098] Fold the first fold 21 along the sewing line f and place it on the side of the side 20 away from the bottom edge 30, and fold the second fold 31 along the sewing line f and place it on the side of the bottom edge 30 away from the side 20.

[0099] The bag is turned inside out, so that the side edge 20 is folded over and placed on one side surface of the fabric body 10, forming a first fold line b on the side edge of the fabric body 10, and the first folded edge 21 is folded over and placed on the side of the side edge 20 facing the fabric body 10. Based on this, the first folded edge 21 can be located inside the fabric body 10 and covered by the fabric body 10, preventing the first folded edge 21 from being exposed and affecting the appearance.

[0100] At the same time, turning the bag inside out causes the bottom edge 30 to be folded onto the same side surface of the fabric body 10, forming a second fold line c at the bottom edge of the fabric body 10, and the second folded edge 31 is folded onto the side of the bottom edge 30 facing the fabric body 10. Based on this, the second folded edge 31 can be located inside the fabric body 10 and concealed by the fabric body 10, preventing the second folded edge 31 from being exposed and affecting the appearance.

[0101] Based on the above edge-gathering method, the fabric body 10 can be transformed into a fabric edge-gathering structure, and the area where the second fold 31 is located and the area where the first fold 21 is located will not overlap in the thickness direction of the fabric body 10. This can effectively prevent the side edge 20 from forming a large thickness area near the bottom edge 30, which is beneficial to improving the thickness uniformity of the fabric body 10 in the area where the side edge 20 is located.

[0102] It should be noted here that the main difference between the third edge-finishing method and the first edge-finishing method mentioned above is:

[0103] The first edge-finishing method is for the fabric body 10 with a first cut angle 40 in the initial state. In this case, the first folded edge 21 and the second folded edge 31 can be formed by folding, sewing and turning the edge in sequence. There will be no interference when the side edge 20 and the bottom edge 30 are folded in the subsequent process, which ensures the smooth progress of the edge-finishing process.

[0104] The third edge-finishing method is for the fabric body 10 that does not have the first cut corner 40 in the initial state. In this case, if it is not cut, the first fold 21 and the second fold 31 cannot be formed, and the side edge 20 and the bottom edge 30 will interfere with each other during the folding process.

[0105] In addition, the finishing sequence of the third finishing method is as follows: first, fold the bottom edge 30 to the side edge 20, then sew the bottom edge 30 and the side edge 20, then cut off the area including the bottom corner 70, then fold it to form the first fold 21 and the second fold 31, then turn the bag outward, and finally fold the side edge 20 and the bottom edge 30 to the same side of the fabric body 10 to form the fabric finishing structure.

[0106] In some embodiments, folding the bottom edge 30 along the fourth fold line e passing through the vertex of the bottom corner 70 and placing it on the side edge 20 includes:

[0107] A 50° bend is formed at the bottom corner 70°.

[0108] Specifically, the bottom corner 70 can be folded over and then folded over to the overlapping area of ​​the side 20 and the bottom 30, thus forming a folded angle 50 at the bottom corner 70.

[0109] A stitch f is sewn into the overlapping area to secure the side edge 20 and the bottom edge 30, including:

[0110] A sewing line f is sewn within the overlapping area and extends from the fourth fold line e to the edge of the overlapping area, thus dividing the overlapping area to form a cutting area.

[0111] It should be noted here that the area to be cut is the area where the fold 50 is located; that is, the fold 50 can be cut off.

[0112] Within the overlapping area, cut off the area including the bottom corner 70 along the cutting line g, including:

[0113] Cut off the fold 50 along the cutting line g to form the second chamfer 60.

[0114] Furthermore, the corresponding solutions in the first edge-finishing method can also be applied to the third edge-finishing method, as long as no contradiction arises.

[0115] This application also discloses a first type of article with chain teeth, which includes chain teeth and the aforementioned fabric edge-gathering structure, wherein the chain teeth can be fixed to the area where the side edge 20 of the fabric body 10 is located. It should be noted here that the fabric edge-gathering structure here is the same as the aforementioned fabric edge-gathering structure.

[0116] This application also discloses a second type of article with chain teeth. The disclosed article with chain teeth includes: chain teeth and the above-mentioned fabric edge-gathering structure, wherein the chain teeth can be fixed to the area where the side edge 20 of the fabric body 10 is located. It should be noted here that the fabric edge-gathering structure here is the fabric edge-gathering structure obtained by the above-mentioned fabric edge-gathering method.

[0117] Alternatively, the aforementioned items with chain teeth can be clothing or flexible bags, etc.

[0118] The embodiments of this application have been described above with reference to the accompanying drawings. However, this application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.

Claims

1. A fabric edge-finishing structure, characterized in that, include: Fabric body (10) having adjacent side edges (20) and bottom edges (30). The side edge (20) is folded over and placed on one side surface of the fabric body (10) to form a first fold line (b) on the side edge of the fabric body (10), and the bottom edge (30) is folded over and placed on the same side surface of the fabric body (10) to form a second fold line (c) on the bottom edge of the fabric body (10). There is an overlapping area between the end of the side edge (20) near the bottom edge (30) and the end of the bottom edge (30) near the side edge (20). The overlapping area has a sewing line (f) that sews the side edge (20) and the bottom edge (30) together. The sewing line (f) extends from the second fold line (c) to the edge of the overlapping area in a direction that gradually moves away from the first fold line (b) and at the same time divides the side edge (20) and the bottom edge (30) into two parts. The side edge (20) has a first fold (21) formed by the sewing line (f), the first fold (21) being folded over and placed on the side of the side edge (20) facing the fabric body (10), and the bottom edge (30) has a second fold (31) formed by the sewing line (f), the second fold (31) being folded over and placed on the side of the bottom edge (30) facing the fabric body (10).

2. The fabric edge-finishing structure according to claim 1, characterized in that, The angle between the extension direction of the sewing thread (f) and the extension direction of the second fold line (c) is 45° or not 45°.

3. The fabric edge-finishing structure according to claim 2, characterized in that, The starting point of the sewing line (f) coincides with the intersection of the first fold line (b) and the second fold line (c), or deviates from the intersection.

4. The fabric edge-finishing structure according to claim 1, characterized in that, The first fold (21) and the second fold (31) are arranged symmetrically with respect to the sewing line (f).

5. The fabric edge-finishing structure according to claim 1, characterized in that, The first fold (21) and the second fold (31) are symmetrically arranged with respect to the midpoint of the sewing line (f).

6. The fabric edge-finishing structure according to any one of claims 1 to 5, characterized in that, Both the first fold (21) and the second fold (31) are trapezoidal folds.

7. The fabric edge-finishing structure according to any one of claims 1 to 5, characterized in that, Both the first fold (21) and the second fold (31) are triangular folds.

8. The fabric edge-finishing structure according to any one of claims 1 to 5, characterized in that, The width of the side edge (20) folded over and placed on the fabric body (10) is equal to the width of the bottom edge (30) folded over and placed on the fabric body (10).

9. An article having chain teeth, characterized in that, The article includes chain teeth and a fabric finishing structure as described in any one of claims 1 to 8; The chain teeth are fixed to the area where the side (20) of the fabric body (10) is located.

10. The article according to claim 9, characterized in that, The item is clothing or a flexible bag.

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