A zigzag corner overedge and felled seam process

Abstract

The present invention relates to a folding line corner seaming process, comprising the following steps: (1) selecting an inner corner patchwork, an outer corner patchwork and an angle cloth respectively having a first seam line, a second seam line and a third seam line; (2) placing the inner corner patchwork with its reverse side facing the lower layer, placing the angle cloth on the upper layer, aligning and sewing; (3) cutting the sewn inner corner patchwork and the angle cloth along the diagonal of the seam angle; (4) folding the inner corner patchwork and the angle cloth toward the front side of the inner corner patchwork along the first seam line, and ironing to shape; (5) then splicing the inner corner patchwork with its front side facing upward and the outer corner patchwork with its reverse side facing upward, and sewing a first line along the direction of the first seam line; (6) finally, turning over the inner corner patchwork and the outer corner patchwork after sewing the first line, so that their front and back sides are switched, and continuing to sew a second line along the direction of the first seam line, and the process is completed. The present invention can improve the quality of sample clothing without changing the thinness of the sample clothing.

Description

Technical Field

[0001] The present invention belongs to the technical field of clothing processing and relates to a process for double-needle stitching at the turning of a folded line. Background Art

[0002] Existing clothing styles are diverse in segmentation. For styles with more segmentation, the reverse side is usually treated by adding lining cloth, overlocking, binding strips, etc. However, for shirts with segmentation, the above techniques are not suitable. Adding lining cloth to shirts will make them stuffy, and binding strips will make them too thick, and ironing may easily leave ironing marks on the front. In addition, the raw edges on the reverse side of overlocking are not delicate. Summary of the Invention

[0003] The purpose of the present invention is to provide a process for double-needle stitching at the turning of a folded line, which can improve the quality of the sample garment without changing its lightness.

[0004] The purpose of the present invention can be achieved by the following technical solutions:

[0005] A process for double-needle stitching at the turning of a folded line includes the following steps:

[0006] (1) Select an inner corner patch, an outer corner patch, and a corner wrapping cloth respectively having a first sewing line, a second sewing line, and a third sewing line;

[0007] (2) Place the inner corner patch with the reverse side facing down on the lower layer, place the corner wrapping cloth on the upper layer, and ensure that the third sewing line on the corner wrapping cloth is aligned with the first sewing line on the inner corner patch, and then sew;

[0008] (3) Cut the sewn inner corner patch and corner wrapping cloth along the diagonal of the sewn corner, and ensure that the sewing thread is not cut;

[0009] (4) Fold the inner corner patch and corner wrapping cloth after cutting along the diagonal of the sewn corner towards the front of the inner corner patch along the first sewing line, and then iron and shape;

[0010] (5) Then splice the inner corner patch with the front side facing up and the outer corner patch with the reverse side facing up, and sew the first line along the direction of the first sewing line;

[0011] (6) Finally, turn over the inner corner patch and outer corner patch after sewing the first line so that their front and back sides are swapped, and continue to sew the second line along the direction of the first sewing line to complete.

[0012] Further, the first sewing line, the second sewing line, and the third sewing line are all in a right-angled shape.

[0013] Further, the seam allowance at the middle turning corner of the third sewing line on the corner wrapping cloth is 1.2 cm, and the seam allowances at the two end points of the third sewing line are 1.0 - 1.2 cm.

[0014] Further, in step (2), during sewing, ensure that the overall stitch density is not less than 15 stitches per 3 cm.

[0015] Furthermore, in step (2), during sewing, the backstitch at both ends of the third stitch line is not less than 3 stitches.

[0016] Further, in step (4), before folding, also trim the seam allowance area of the corner cloth.

[0017] Further, in step (5), the width of the overlapping part between the inner corner patchwork and the outer corner patchwork is 0.5 seam allowances.

[0018] Further, in step (6), the width of the second stitch line is 0.6 cm.

[0019] Further, in step (6), the landing point at the corner of the second stitch line is exactly at the corner point position of the third stitch line.

[0020] Further, the corner cloth is made of the main fabric, and the inner corner patchwork and the outer corner patchwork are made of the main fabric or a coordinating lining fabric.

[0021] Compared with the prior art, the present invention can improve the quality of the sample garment without changing its light and thin texture. At the same time, it can save equipment expenses for small and medium-sized enterprises, enhance the aesthetics of the product, and has high fastness and is not easily damaged. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic structural diagram of the outer corner patchwork;

[0023] Figure 2 It is a schematic structural diagram of the inner corner patchwork;

[0024] Figure 3 It is a schematic structural diagram of the corner cloth;

[0025] Figure 4 It is a front view schematic diagram of the finished product;

[0026] Figure 5 It is a back view schematic diagram of the finished product;

[0027] Figure 6 It is a schematic diagram when the corner cloth and the inner corner patchwork are stacked;

[0028] Figure 7 It is a schematic diagram after sewing the corner cloth and the inner corner patchwork;

[0029] Figure 8 It is a schematic diagram after folding the inner corner patchwork and the corner cloth;

[0030] Figure 9 It is a schematic diagram when sewing the first stitch line;

[0031] Figure 10 Schematic diagram when sewing the second stitch line

[0032] Marking description in the figure

[0033] 1 - Inner corner patchwork, 11 - First stitch line, 2 - Outer corner patchwork, 21 - Second stitch line, 3 - Corner wrapping cloth, 31 - Third stitch line Specific implementation mode

[0034] The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments. This embodiment is implemented on the premise of the technical solution of the present invention, and gives the detailed implementation mode and specific operation process, but the protection scope of the present invention is not limited to the following embodiments.

[0035] In the following embodiments, unless otherwise specified for raw materials or processing techniques, it means that they are all conventional commercially available raw materials or conventional processing techniques in the art.

[0036] Embodiment 1:

[0037] This embodiment provides a zigzag turning backstitch process, including the following steps:

[0038] (1) Select the inner corner patchwork 1, outer corner patchwork 2 and corner wrapping cloth 3 respectively having the first stitch line 11, second stitch line 21 and third stitch line 31 (all three are double stitch lines), as shown respectively in Figures 1 to 3 The first stitch line 11, second stitch line 21 and third stitch line 31 are all in a right-angled shape.

[0039] (2) Place the inner corner patchwork 1 with the reverse side facing up on the lower layer, place the corner wrapping cloth 3 on the upper layer, and ensure that the third stitch line 31 on the corner wrapping cloth 3 is aligned with the first stitch line 11 on the inner corner patchwork 1. The seam allowance at the middle turning point O of the third stitch line 31 on the corner wrapping cloth 3 is 1.2 cm, and the seam allowances at the two end points (i.e., point A and point B) of the third stitch line 31 are slightly smaller, generally 1.0 - 1.2 cm. Sew, as shown in Figure 6 At the same time, during the sewing process, sew from point A to point B, and the backstitch at both ends is not less than 3 stitches, and the overall stitch density is not less than 15 stitches / 3 cm; in addition, if the fabric yarn count is sparse, the corner wrapping cloth must be adhered with a thin lining.

[0040] (3) Cut the sewn inner corner patchwork 1 and corner wrapping cloth 3 along the diagonal of the sewn corner, and ensure that the sewing thread is not cut, as shown in Figure 7 ;

[0041] (4) Turn the inner corner patchwork 1 and corner wrapping cloth 3 after cutting along the diagonal of the sewn corner towards the reverse side of the inner corner patchwork 1 along the first stitch line 11, and iron and shape, as shown in Figure 8 ;

[0042] (5) Next, stitch the inner corner patchwork 1 with the right side up and the outer corner patchwork 2 with the wrong side up, and sew the first line along the direction of the first stitch line 12 with a line width of 0.5 cm. See Figure 9 as shown;

[0043] (6) Finally, turn the inner corner patchwork 1 and the outer corner patchwork 2 inside out after sewing the first line so that their front and back sides are swapped, and then sew the second line along the direction of the first stitch line 11. As Figure 10 shown, its line width (i.e., the width from the edge, the same below) is 0.6 cm. Note that the landing point at the corner of the second line is exactly at the position of point O, and then it is completed. The obtained finished product is as Figure 4 and Figure 5 shown.

[0044] For the above-mentioned inner corner patchwork 1 and outer corner patchwork 2, the same fabric is used, and the inner corner wrapping cloth 3 can use the same fabric or a coordinated lining fabric.

[0045] The applicable angle range for division in this solution is between 45 - 180 degrees.

[0046] The solution of this embodiment has the following advantages compared with the existing hemming or edging solutions, as shown in Table 1 below:

[0047] 1) Compared with the hemming solution: It requires a new piece of equipment, and needs to be re-adjusted for different fabrics. After hemming, the seam allowance will be greatly thickened, and hemming cannot directly turn corners. It must be trimmed into a rounded corner before operation, resulting in a decrease in wearing comfort.

[0048] 2) Compared with the edging solution: Edging also requires a new piece of equipment, and the edging corners need to be joined. Thread ends are likely to appear on the reverse side, and ironing marks are also likely to appear on the front side after ironing.

[0049] 3) This solution can save equipment expenses for small and medium-sized enterprises, improve the aesthetics of products, and has high fastness and is not easily damaged.

[0050] Table 1

[0051]

[0052] The above description of the embodiments is for the convenience of those of ordinary skill in the art to understand and use the invention. Those skilled in the art can obviously make various modifications to these embodiments easily and apply the general principles described herein to other embodiments without creative labor. Therefore, the present invention is not limited to the above embodiments, and the improvements and modifications made by those skilled in the art without departing from the scope of the present invention should be within the protection scope of the present invention.

Claims

1. A process for zigzag corner overedge seam, characterized in that, It includes the following steps: (1) Select the inner corner patchwork, outer corner patchwork and corner wrapping cloth respectively having the first sewing thread, the second sewing thread and the third sewing thread; (2) Place the inner corner patchwork with the reverse side facing down on the lower layer, place the corner wrapping cloth on the upper layer, and ensure that the third sewing thread on the corner wrapping cloth is aligned with the first sewing thread on the inner corner patchwork, and sew; (3) Cut the sewn inner corner patchwork and corner wrapping cloth along the diagonal of the sewn corner, and ensure that the sewing thread is not cut; (4) Turn the inner corner patchwork and corner wrapping cloth after cutting at the diagonal position of the sewn corner towards the front of the inner corner patchwork along the first sewing thread, and iron and shape; (5) Then splice the inner corner patchwork with the front side facing and the outer corner patchwork with the reverse side facing up, and sew the first line along the direction of the first sewing thread; (6) Finally, turn over the inner corner patchwork and the outer corner patchwork after sewing the first line so that their front and back sides are swapped, and continue to sew the second line along the direction of the first sewing thread, and it is completed.

2. The zigzag corner overedge process according to claim 1, characterized in that, The first sewing thread, the second sewing thread and the third sewing thread are all in a right-angled shape.

3. A zigzag corner overedge sewing process according to claim 1, characterized in that, The seam allowance at the middle turning corner of the third sewing thread on the corner wrapping cloth is 1.2 cm, and the seam allowance at the two end points of the third sewing thread is 1.0 - 1.2 cm.

4. A zigzag corner overedge sewing process according to claim 1, characterized in that In step (2), when sewing, ensure that the overall stitch density is not less than 15 stitches / 3 cm.

5. A folding line corner seam removal process according to claim 4, characterized in that: In step (2), when sewing, the backstitch at the two end points of the third sewing thread is not less than 3 stitches.

6. A zigzag corner overedge sewing process according to claim 1, characterized in that, In step (4), before turning over, the seam allowance area part of the corner wrapping cloth is also trimmed.

7. A zigzag corner overedge sewing process according to claim 1, wherein In step (5), the width of the overlapping part of the splicing of the inner corner patchwork and the outer corner patchwork is 0.5 seam allowance.

8. A zigzag corner overedge sewing process according to claim 1, characterized in that, In step (6), the width of the second line is 0.6 cm.

9. A zigzag corner overedge sewing process according to claim 1, characterized in that, In step (6), the landing point at the turning corner of the second line is just located at the turning point position of the third sewing thread.

10. The folding line corner seam removal process according to claim 1, characterized in that: The said corner wrapping cloth uses the original cloth, and the said inner corner patchwork and outer corner patchwork use the original cloth or the color-matching lining cloth.

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