1, align and fix two sweaters that need to be sewn with a circular needle at a fixed point, so as to prepare for the sewing cooperation, as shown in the following figure.
2. First, pass a special sewing needle through the knitted fabric in front of a garment, as shown in the figure below.
3. Then thread the needle through the lower braid in front of the other piece and tighten the suture, as shown in the figure below.
4. Sew in turn until a certain distance of sweaters are sewn, and then stop to see if they are flat and aligned, as shown below.
5. Continue to sew halfway, and check again whether the upper and lower sweaters are aligned.
6. After sewing half the distance, you can start sewing from the other end with another thread, so as to ensure the alignment of the upper and lower sweaters, as shown below.
7. Check whether the stitches are neat until the upper and lower sweaters are stitched. If the Zhang Chi of two sweaters are consistent, the splicing can be completed.