A method of three-dimensional garment construction

Abstract

The application discloses a three-dimensional structure sewing method of clothes, and relates to the technical field of clothes processing, which comprises the following steps: cutting a piece, cutting a three-dimensional piece on a fabric by adopting a laser cutting process, and cutting a frame opening and a position on a piece; cutting a mouth, cutting a plurality of first alignment cut mouths on the piece by adopting the laser cutting process, and cutting a plurality of second alignment cut mouths on a circumferential edge of the three-dimensional piece at intervals; combining the position, sewing the fabric on both sides of the position of the piece; sewing the piece, aligning the first alignment cut mouths and the second alignment cut mouths one by one, and sewing the piece and the three-dimensional piece; and pressing glue, adopting a hot pressing process to paste a glue strip on the sewing position of the position, and the sewing position of the piece and the three-dimensional piece. After the three-dimensional piece and the piece are sewn, the sewing part is covered by the glue strip, which not only enhances the firmness, waterproof performance and windproof performance of the three-dimensional structure of the clothes, but also makes the three-dimensional structure more full and beautiful, and meets the activity demand of human body movement.

Description

Technical Field

[0001] This application relates to the field of garment processing technology, and more specifically, to a method for sewing a three-dimensional garment structure. Background Technology

[0002] Traditional weathered garments such as waterproof jackets often use pattern-based darts to increase mobility, resulting in a lack of three-dimensional design variation, monotonous styles, and an inability to meet the ever-increasing demands for functionality and aesthetics. Existing three-dimensional patchwork sewing processes are prone to misalignment of upper and lower pieces and twisting of the patchwork due to manual operation, and also suffer from low efficiency and poor quality consistency. In addition, due to the difficulty in precisely controlling the three-dimensional shaping of the fabric, the patchwork structure is often relatively flat, failing to provide sufficient ease of movement while ensuring smooth lines. Therefore, when applied to high-end outdoor clothing, it cannot fully meet the needs of the human body for large-scale movements.

[0003] Therefore, how to improve the precision and efficiency of sewing three-dimensional structures in clothing, and how to make clothing have a three-dimensional shape while meeting the needs of the human body for large-scale movements, has become a technical problem that urgently needs to be solved by those skilled in the art. Summary of the Invention

[0004] In view of this, the purpose of this application is to provide a method for sewing three-dimensional structures in clothing, so as to improve the accuracy and efficiency of sewing three-dimensional structures in clothing, and to enable clothing to meet the needs of human body's large range of motion while having a three-dimensional shape.

[0005] A method for sewing a three-dimensional garment structure, wherein the three-dimensional garment structure is a splicing structure of the opening part of the garment piece and the three-dimensional patchwork, comprising the following steps:

[0006] The fabric is cut into pieces using laser cutting technology to obtain the three-dimensional stripes. The opening is cut along the first structural line and the dart is cut along the second structural line on the garment piece using laser cutting technology, with the second structural line located on one side of the first structural line.

[0007] The slit cutting process involves using laser cutting technology to cut multiple first alignment slits on the garment piece, with the first alignment slits spaced apart on both sides of the frame opening; and using laser cutting technology to cut multiple second alignment slits spaced apart on the circumferential edge of the three-dimensional patchwork, with the second alignment slits corresponding one-to-one with the first alignment slits.

[0008] Dart stitching: The fabric at the dart position of the garment piece is sewn together from the back of the garment piece.

[0009] For sewing the garment pieces, place the three-dimensional patchwork strip onto the opening, align the first alignment cut and the second alignment cut one by one, and then sew the garment pieces and the three-dimensional patchwork strip together.

[0010] The adhesive strip is applied from the back of the garment piece using a hot-pressing process to the seam of the dart and the seam of the garment piece and the three-dimensional patchwork strip.

[0011] In some embodiments, the cut piece sewing step specifically includes the following steps:

[0012] For the main body sewing, the three-dimensional patchwork is placed on the opening and pressed under the garment piece. After aligning the first and second alignment cuts one by one, the garment piece and the three-dimensional patchwork are sewn together from the back of the garment piece.

[0013] Cut the stop line on the front side of the three-dimensional splice away from the nut position;

[0014] End sealing: The two ends of the three-dimensional strip are arranged to overlap with the garment piece along the length direction, and a sealing line is sewn on the front of the garment piece to the two ends of the three-dimensional strip along the length direction.

[0015] In some embodiments, the cut piece sewing step further includes the step of:

[0016] End reinforcement: On the front of the garment piece, the two ends of the three-dimensional stripe are reinforced by stitching knots along the length direction, and the knots are arranged at intervals from the sealing line.

[0017] In some embodiments, during the adhesive bonding step, an adhesive strip is applied to the seam between the garment piece and the three-dimensional patchwork using a hot-pressing process from the back of the garment piece, and the end of the adhesive strip extends at least 1 cm beyond the knot.

[0018] In some embodiments, during the fabric cutting step, both the garment piece and the three-dimensional patchwork strip include a 0.3cm seam allowance;

[0019] In the cutting step, the opening depth of both the first and second aligned cuts is 0.15 cm.

[0020] In the main sewing step, the garment piece and the three-dimensional patchwork are sewn together with a seam allowance of 0.3 cm to obtain the sewing stitches;

[0021] In the step of cutting the stop line, the distance between the side of the three-dimensional patchwork away from the dart and the stitch of the garment piece and the stop line is 0.15cm;

[0022] In the end sealing step, the distance between the sealing line and the suture stitch is 0.15 cm.

[0023] In some embodiments, a step is further included between the cutting piece sewing step and the adhesive bonding step:

[0024] One folding and ironing is performed from the front of the three-dimensional patchwork to the seam of the garment piece on the side of the three-dimensional patchwork away from the dart.

[0025] In some embodiments, the following step is included after the adhesive bonding step:

[0026] The second folding and ironing involves folding and ironing the three-dimensional patchwork from the front side, away from the dart, at the seam where it is sewn onto the garment piece.

[0027] In some embodiments, the following step is included after the adhesive bonding step:

[0028] Defect repair involves using a glue-applying machine to heat-press and repair defects in the glue strips at the seam positions of the garment pieces and the three-dimensional patchwork seams.

[0029] In some embodiments, during the defect repair step, the glue applicator is hot-pressed for 6 to 8 seconds and then cold-pressed for 3 seconds at a temperature of 160°C and a pressure of 3 kg to repair the defect in the adhesive strip.

[0030] In some embodiments, during the pressing step, the adhesive strip is applied to the seam position of the dart and the seam position of the garment piece and the three-dimensional patchwork using a pressing machine;

[0031] The adhesive bonding machine applies the adhesive strip to the seam location at a speed of 3.6 meters per minute under conditions of 600℃-620℃, wind resistance of 0.35 cfm, and pressure of 3 kg.

[0032] The garment three-dimensional structure sewing method provided in this application includes a fabric piece cutting step, a notch cutting step, a dart joining step, a fabric piece sewing step, and a glue pressing step. The fabric piece cutting step involves using laser cutting technology to cut three-dimensional stripes on the fabric, using laser cutting technology to cut openings along a first structural line on the garment piece, and using laser cutting technology to cut darts along a second structural line, with the second structural line located on one side of the first structural line. The notch cutting step involves using laser cutting technology to cut multiple first alignment notches on the garment piece, with the first alignment notches spaced apart on both sides of the opening; using laser cutting technology to cut multiple second alignment notches spaced apart along the circumferential edge of the three-dimensional stripe, with the second alignment notches corresponding one-to-one with the first alignment notches to ensure accurate seam alignment between the three-dimensional stripe and the opening of the garment piece. The dart joining process involves sewing the fabric from the back of the garment piece along both sides of the dart area. This removes excess fabric, allowing the garment to better conform to the body's curves, preventing it from looking baggy and creating a more sculpted and flattering silhouette. The panel sewing process involves placing the panel strip at the opening, aligning the first and second alignment cuts, and then sewing the garment piece and panel strip together. The seam sealing process involves applying adhesive tape from the back of the garment piece using a heat-pressing process to the seam allowances at the dart seams and the seam allowances between the garment piece and the panel strip. This enhances the seam strength and provides waterproof and windproof properties, while also increasing the three-dimensionality of the seam allowances between the garment piece and the panel strip.

[0033] Compared to existing technologies, the three-dimensional garment sewing method provided in this application uses laser cutting technology to perform high-precision non-contact cutting of the fabric. The cuts are clean and precise in size, and can complete the alignment of the cut edges, effectively avoiding interlayer displacement and errors caused by traditional manual cutting of multi-layered fabrics. This ensures high-precision alignment and seam treatment, eliminating quality problems such as wrinkles and twisting. This significantly improves production efficiency and yield while solving the problems of poor three-dimensional effect and mass production difficulties caused by manual sampling. Regarding structural reinforcement and functional realization, the three-dimensional garment sewing method disclosed in this application involves stitching the three-dimensional strips and garment pieces together, and then covering the seams with a sealing strip. This combination of stitching and sealing not only enhances the strength and waterproof and windproof performance of the garment's three-dimensional structure but also makes the three-dimensional shape fuller and more aesthetically pleasing, meeting the needs of large-scale human movement and solving the discomfort caused by uneven thickness of traditional stitching. Attached Figure Description

[0034] To more clearly illustrate the technical solutions in the embodiments of this application 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 some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0035] Figure 1 The process of sewing a three-dimensional garment structure as disclosed in the embodiments of this application Figure 1 ;

[0036] Figure 2 The process of sewing a three-dimensional garment structure as disclosed in the embodiments of this application Figure 2 ;

[0037] Figure 3 The process of sewing a three-dimensional garment structure as disclosed in the embodiments of this application Figure 3 ;

[0038] Figure 4 This is a schematic diagram of the structure of the garment piece disclosed in the embodiments of this application;

[0039] Figure 5 This is a schematic diagram of the structure of the three-dimensional splicing strips disclosed in the embodiments of this application.

[0040] Among them, 100 is the garment piece, 101 is the first structural line, and 102 is the second structural line;

[0041] 200 is a three-dimensional splicing strip. Detailed Implementation

[0042] This application discloses a method for sewing a three-dimensional structure for clothing, which improves the accuracy and efficiency of sewing a three-dimensional structure for clothing, and enables clothing to meet the needs of human body's large range of motion while having a three-dimensional shape.

[0043] The embodiments will now be described with reference to the accompanying drawings. Furthermore, the embodiments shown below do not limit the scope of the invention as described in the claims. Additionally, the complete contents of the structures represented in the embodiments below are not limited to those necessary for the solution of the invention as described in the claims. It should be noted that, for ease of description, only the parts relevant to the invention are shown in the drawings. Unless otherwise specified, the embodiments and features described in this application can be combined with each other.

[0044] Traditional weathered garments such as waterproof jackets often use pattern-based darts to increase mobility, resulting in a lack of three-dimensional design variation, monotonous styles, and an inability to meet the ever-increasing demands for functionality and aesthetics. Existing three-dimensional patchwork sewing processes are prone to misalignment of upper and lower pieces and twisting of the patchwork due to manual operation, and also suffer from low efficiency and poor quality consistency. In addition, due to the difficulty in precisely controlling the three-dimensional shaping of the fabric, the patchwork structure is often relatively flat, failing to provide sufficient ease of movement while ensuring smooth lines. Therefore, when applied to high-end outdoor clothing, it cannot fully meet the needs of the human body for large-scale movements.

[0045] Based on this, this application discloses a method for sewing three-dimensional structures in clothing, which improves the accuracy and efficiency of sewing three-dimensional structures in clothing, and enables clothing to meet the needs of human body's large range of motion while having a three-dimensional shape.

[0046] The garment three-dimensional structure sewing method disclosed in this application is used to sew garment three-dimensional structures. Specifically, the garment three-dimensional structure is a splicing structure of the opening part of the garment piece and the three-dimensional patchwork. The garment piece can be a garment piece, sleeve piece, etc. The three-dimensional patchwork can increase the three-dimensionality of the opening part of the garment piece, so that the garment has a three-dimensional shape while meeting the needs of the human body for a large range of motion.

[0047] The method for sewing a three-dimensional garment structure disclosed in this application includes the following steps:

[0048] S10, Cutting the fabric pieces;

[0049] Combination Figure 1 , Figure 4 and Figure 5 The three-dimensional stripes 200 are cut into the fabric using laser cutting technology. Openings are also cut along the first structural line 101 and darts along the second structural line 102 on the garment piece 100 using the same laser cutting technology, with the second structural line 102 located to one side of the first structural line 101. Specifically, S10 can be laser-cut using a laser cutting machine, and the garment piece 100 can also be laser-cut using the same machine.

[0050] S20, scissor cutting;

[0051] Multiple first alignment cuts are made on the garment piece 100 using laser cutting technology, with the first alignment cuts spaced apart on both sides of the opening. Multiple second alignment cuts are also made at intervals along the circumferential edge of the three-dimensional patchwork 200 using laser cutting technology, with the second alignment cuts corresponding one-to-one with the first alignment cuts. Specifically, a laser cutting machine can be used to laser cut the first and second alignment cuts, and by trimming the first and second alignment cuts, the seam alignment accuracy between the three-dimensional patchwork 200 and the opening of the garment piece 100 can be ensured.

[0052] For example, Figure 4 and Figure 5The diagram illustrates a technical solution where ten first alignment cuts (A1, A2, B1, B2, C1, C2, D1, D2, E1, E2) are cut on garment piece 100, and ten second alignment cuts (A3, A4, B3, B4, C3, C4, D3, D4, E3, E4) are cut on three-dimensional patchwork strip 200. During the sewing process, A1 and A3 are arranged opposite each other, A2 and A4 are arranged opposite each other, B1 and B3 are arranged opposite each other, B2 and B4 are arranged opposite each other, C1 and C3 are arranged opposite each other, C2 and C4 are arranged opposite each other, D1 and D3 are arranged opposite each other, D2 and D4 are arranged opposite each other, E1 and E3 are arranged opposite each other, and E2 and E4 are arranged opposite each other.

[0053] S30, provincial-level combination;

[0054] Sew the fabric on both sides of the dart area of ​​garment piece 100 from the back of garment piece 100 to remove excess weight of garment piece 100, so that garment piece 100 can better fit the three-dimensional curves of the human body, so that the garment is no longer loose, and has the effect of shaping a three-dimensional shape and modifying the figure.

[0055] S40, sewing the cut pieces together;

[0056] Place the three-dimensional patchwork strip 200 into the opening, align the first and second alignment cuts one by one, and sew the garment piece 100 and the three-dimensional patchwork strip 200 together.

[0057] S50, pressure bonding;

[0058] Adhesive strips are applied to the seam of the darts and the seam of the garment piece 100 and the three-dimensional patchwork strip 200 using a hot-pressing process from the back of the garment piece 100. This enhances the strength of the seam and its waterproof and windproof properties. In addition, it also enhances the three-dimensionality of the seam between the garment piece 100 and the three-dimensional patchwork strip 200.

[0059] Compared to existing technologies, the garment three-dimensional structure sewing method disclosed in this application uses laser cutting technology to perform high-precision non-contact cutting of the fabric. The cuts are clean and precise in size, and can complete the alignment of the cut edges, effectively avoiding interlayer displacement and errors caused by traditional manual cutting of multi-layered fabrics. This ensures high-precision alignment and seam treatment, eliminating quality problems such as wrinkles and twisting. This significantly improves production efficiency and yield while solving the problems of poor three-dimensional effect and mass production difficulties caused by manual sampling. Regarding structural reinforcement and functional realization, the garment three-dimensional structure sewing method disclosed in this application involves stitching the three-dimensional patch 200 to the garment piece 100 together, and then covering the seam with a sealing strip. This combination of stitching and sealing not only enhances the strength and waterproof and windproof performance of the garment's three-dimensional structure but also makes the three-dimensional shape fuller and more aesthetically pleasing, meeting the needs of large-scale human movement and solving the discomfort caused by uneven thickness in traditional stitching.

[0060] The three-dimensional garment sewing method disclosed in this application is applicable to high-end outdoor, professional protective, and fashionable sportswear, and can balance functionality and aesthetic appeal. It has a wide range of applications, supports various fabrics and complex three-dimensional patchwork designs, and can be applied to various functional or stylistic processes such as upper and lower garment movement design and three-dimensional pockets. It provides more possibilities for style innovation of heat-sealed garments and is highly practical.

[0061] Specifically, in combination Figure 2 The above-mentioned S40 step may specifically include the following steps:

[0062] S41, Main body stitching;

[0063] Place the 3D patchwork strip 200 at the opening and press it under the garment piece 100. Align the first and second alignment cuts, and sew the garment piece 100 and the 3D patchwork strip 200 together from the back of the garment piece 100. Pressing the 3D patchwork strip 200 under the garment piece 100 before sewing hides raw edges and stitches, ensuring the smoothness and aesthetics of the garment lining and wearing comfort. At the same time, using the 3D patchwork strip 200 as a supporting skeleton enhances the structural stability and strength of the seam allowance while achieving a three-dimensional shape.

[0064] S42, Cut the stop line;

[0065] On the front side of the three-dimensional strip 200 away from the dart, the stop line is machined, and backstitch reinforcement is carried out to effectively lock the edge of the three-dimensional strip 200, prevent its inner stop from turning to the front and being exposed, thereby ensuring that the three-dimensional shape can remain flat and sturdy for a long time and avoid problems such as edge warping or line distortion.

[0066] S43, End sealing;

[0067] The two ends of the three-dimensional patchwork strip 200 are arranged to overlap with the garment piece 100 along the length direction, and the sealing line is sewn on the front of the garment piece 100 facing the two ends of the three-dimensional patchwork strip 200 along the length direction.

[0068] Specifically, step S43 uses a cross-overlapping method instead of the traditional reverse-side stitching. The ends of the three-dimensional patchwork strip 200 are directly overlapped with the garment piece 100. A topstitch is sewn on the front of the garment piece 100 at a distance of 0.15cm from the edge or other distance as a sealing line, and the square corners are directly formed using straight stitching. The stitch length of the sealing line is consistent with the width of the three-dimensional patchwork strip 200 to ensure that the corner structure is square. This method can effectively avoid the unevenness caused by excessive fabric layers at the corners in traditional processes and significantly improve sewing efficiency. After the sealing line is sewn, backstitching is performed at both ends of the three-dimensional patchwork strip 200 for reinforcement. The reinforcement length is also consistent with the width of the three-dimensional patchwork strip 200, thereby firmly locking the three-dimensional patchwork strip 200 in the predetermined position, ensuring both structural stability and aesthetic appearance, and preventing the ends from loosening.

[0069] Furthermore, combined Figure 2 The above S40 step may also include the following steps:

[0070] S44, End reinforcement;

[0071] On the front of garment piece 100, knots are sewn at both ends of the three-dimensional patchwork strip 200 along its length to reinforce it. The knots are spaced apart from the aforementioned sealing line and positioned closer to the edge of the three-dimensional patchwork strip 200. The length of the knots can be adjusted according to the frame size; for example, the knot length can be 0.6cm. The knots effectively lock the seams and increase the strength, ensuring that the three-dimensional patchwork strip 200 does not twist or wrinkle, thus improving the product's aesthetics and durability.

[0072] To improve the waterproof performance of the garment's three-dimensional structure, in step S50, an adhesive strip is applied to the seam between the garment piece 100 and the three-dimensional patchwork strip 200 using a hot-pressing process from the back of the garment piece 100. The end of the adhesive strip extends at least 1 cm beyond the knot to effectively prevent water seepage at the knot.

[0073] Specifically, in some embodiments disclosed in this application, in step S10, both the garment piece 100 and the three-dimensional patchwork 200 include a 0.3cm seam allowance; in step S20, the depth of the first and second alignment cuts is 0.15cm; in step S41, the garment piece 100 and the three-dimensional patchwork 200 are sewn together with a 0.3cm seam allowance to obtain a stitch; in step S42, the distance between the stitch and the stop line between the side of the three-dimensional patchwork 200 away from the dart and the garment piece 100 is 0.15cm; in step S43, the distance between the sealing line and the stitch is 0.15cm, which makes the three-dimensional structure of the garment firm, three-dimensional and beautiful.

[0074] To enhance the three-dimensionality of clothing structures, combined with Figure 3 Between steps S40 and S50, there is also a step:

[0075] S60. One-time folding and ironing: Using an iron, fold and iron the three-dimensional patchwork 200 and the garment piece 100 away from the seam of the dart from the front of the three-dimensional patchwork 200 to shape it, thereby improving the three-dimensional effect and appearance flatness of the garment structure, and at the same time facilitating the application of adhesive strips in the subsequent S50 step to achieve flat shaping.

[0076] In some embodiments, combined with Figure 3 The steps following step S50 include:

[0077] S70. Secondary folding and ironing: Using an iron, the three-dimensional patchwork 200 and the garment piece 100 are folded and ironed from the front to shape the seam of the three-dimensional patchwork 200 and away from the dart. This can improve the three-dimensional effect and appearance flatness of the garment structure, and ensure that the three-dimensional patchwork 200 does not twist or wrinkle, thus improving the product's aesthetics and durability.

[0078] To ensure a reliable waterproof seal, combined with Figure 3 The following steps may also be included after step S50:

[0079] S80, Defect Repair: Using a glue repair machine, defects in the glue strips at the seams of garment pieces 100 and three-dimensional patchwork strips 200 are repaired by pressing and heat, as well as defects in the glue strips at the darts, thereby ensuring the flatness, shaping, and waterproof sealing of the garment's three-dimensional structure.

[0080] The parameters of the above-mentioned glue repair machine can be adjusted according to the actual situation. For example, in step S80, the glue repair machine can be hot-pressed for 6 to 8 seconds and cold-pressed for 3 seconds under the conditions of temperature 160°C and pressure 3 kg to repair the glue strip defect at the seam position.

[0081] In step S50 above, the adhesive strip can be applied to the seam position of the dart and the seam position of the garment piece 100 and the three-dimensional patchwork strip 200 using a glue-sealing machine. The parameters of the glue-sealing machine can be adjusted according to the actual situation. For example, the glue-sealing machine can apply the adhesive strip to the seam position at a speed of 3.6 meters per minute under the conditions of temperature 600℃-620℃, wind resistance 0.35cfm, and pressure 3 kg.

[0082] The terms "first" and "second," etc., used in the specification and claims of this application are used to distinguish different objects, not to describe a specific order, and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or device that includes a series of steps or units may include steps or units not listed, but rather steps or units not listed. Additionally, in the description of embodiments in this application, "a plurality of" means two or more.

[0083] The above description of the disclosed embodiments enables those skilled in the art to make or use this application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this application. Specific technical means in some embodiments may be incorporated, in whole or in part, into another embodiment unless explicitly excluded by another embodiment. Therefore, this application is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A method for sewing a three-dimensional garment structure, characterized in that, The three-dimensional structure of the garment is a combination structure of the open frame part of the garment piece (100) and the three-dimensional patchwork strip (200), including the following steps: Cutting the garment pieces involves using laser cutting technology to cut the three-dimensional stripes (200) on the fabric. Laser cutting technology is also used to cut the opening along the first structural line (101) on the garment piece (100) and to cut the dart along the second structural line (102), with the second structural line (102) located on one side of the first structural line (101). The slit cutting is performed by using laser cutting technology to cut multiple first alignment slits on the garment piece (100), and the first alignment slits are distributed at intervals on both sides of the opening. Multiple second alignment cuts are cut at intervals along the circumferential edge of the three-dimensional strip (200) using laser cutting technology. The second alignment cuts correspond one-to-one with the first alignment cuts. The fabric at the dart position of the garment piece (100) is sewn together from the back of the garment piece (100); For the fabric pieces to be sewn together, the three-dimensional patchwork strip (200) is placed on the opening, and the first alignment cut and the second alignment cut are aligned one by one before sewing the garment piece (100) and the three-dimensional patchwork strip (200). The adhesive strip is applied from the back of the garment piece (100) to the seam of the dart and the seam of the garment piece (100) and the three-dimensional patchwork (200) using a hot pressing process.

2. The method for sewing a three-dimensional garment structure as described in claim 1, characterized in that, The specific steps of sewing the cut pieces include: For the main body sewing, place the three-dimensional patchwork strip (200) on the opening and press the three-dimensional patchwork strip (200) under the garment piece (100). After aligning the first alignment cut and the second alignment cut, sew the garment piece (100) and the three-dimensional patchwork strip (200) from the back of the garment piece (100). Cut the stop line on the front side of the three-dimensional strip (200) away from the position of the nut; End sealing: The two ends of the three-dimensional strip (200) are arranged to overlap with the garment piece (100) along the length direction, and a sealing line is made on the front of the garment piece (100) facing the two ends of the three-dimensional strip (200) along the length direction.

3. The method for sewing a three-dimensional garment structure as described in claim 2, characterized in that, The cutting and sewing process also includes the following steps: End reinforcement: On the front of the garment piece (100), the two ends of the three-dimensional strip (200) are reinforced by stitching knots along the length direction, and the knots are arranged at intervals from the sealing line.

4. The method for sewing a three-dimensional garment structure as described in claim 3, characterized in that, In the adhesive bonding step, the adhesive strip is applied to the seam of the garment piece (100) and the three-dimensional patchwork strip (200) from the back of the garment piece (100) using a hot pressing process, and the end of the adhesive strip extends at least 1 cm beyond the knot.

5. The method for sewing a three-dimensional garment structure as described in claim 2, characterized in that, In the cutting step, both the garment piece (100) and the three-dimensional patchwork (200) include a 0.3cm seam allowance; In the cutting step, the opening depth of both the first and second aligned cuts is 0.15 cm. In the main body sewing step, the garment piece (100) and the three-dimensional patchwork strip (200) are sewn together with a seam allowance of 0.3 cm to obtain a sewing stitch; In the step of cutting the stop line, the distance between the side of the three-dimensional patchwork strip (200) away from the dart and the stitch of the garment piece (100) and the stop line is 0.15cm; In the end sealing step, the distance between the sealing line and the suture stitch is 0.15 cm.

6. The method for sewing a three-dimensional garment structure as described in claim 1, characterized in that, Between the cutting piece sewing step and the adhesive bonding step, there is also a step: One folding and ironing is performed from the front of the three-dimensional patchwork (200) to the seam position of the three-dimensional patchwork (200) away from the dart and the garment piece (100).

7. The method for sewing a three-dimensional garment structure as described in claim 1, characterized in that, The following step is included after the adhesive bonding step: Secondary folding and ironing: From the front of the three-dimensional patchwork (200), fold and iron the side of the three-dimensional patchwork (200) away from the dart and the seam position of the garment piece (100) to set the shape.

8. The method for sewing a three-dimensional garment structure as described in claim 1, characterized in that, The following step is included after the adhesive bonding step: Defect repair involves using a glue-applying machine to heat-repair the glue strip defects at the seam positions of the garment pieces (100) and the three-dimensional patchwork strips (200).

9. The method for sewing a three-dimensional garment structure as described in claim 8, characterized in that, In the defect repair step, the glue applicator is hot-pressed for 6 to 8 seconds and then cold-pressed for 3 seconds at a temperature of 160°C and a pressure of 3 kg to repair the defect of the glue strip.

10. The method for sewing a three-dimensional garment structure as described in claim 1, characterized in that, In the pressing step, the adhesive strip is applied to the seam position of the dart and the seam position of the garment piece (100) and the three-dimensional patchwork strip (200) using a pressing machine; The adhesive bonding machine applies the adhesive strip to the seam location at a speed of 3.6 meters per minute under conditions of 600℃-620℃, wind resistance of 0.35 cfm, and pressure of 3 kg.

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