① First prepare the nylon zipper and the fabric to be zippered;

② Use a 1.5 cm wide seam allowance to sew the place where the zipper needs to be installed, and then iron the seam allowance separately. If you don't need to zip the whole seam, then the stitch length of this seam section without zipper should be finer, and the start and end positions should be fixed with inverted stitches;

③ Align the front side of the nylon zipper down with the seam allowance, and use hand stitches to sew it and the seam allowance;

④Turn the fabric to the front, attach the sewing machine with a single-sided presser foot for sewing zipper, push the presser foot down to the right side of the needle, start from the right side of the opening of the nylon zipper, and press on the fabric with a seam of 0.7 cm. line;

⑤ When the stitching on one side is completed and you are ready to sew the other side, first look at the position of the iron on the bottom zipper. If you can avoid it, you can directly turn 90 degrees and let the needle cross the zipper to the other side to start the stitch . When turning, keep the needle at the lowest position, then raise the presser foot, and then lower the presser foot to continue sewing after turning. When sewing over the zipper teeth, do not step on the electric motor, but turn the sewing machine wheel by hand to allow the needle to carefully pass over the nylon zipper teeth to avoid broken needles;

⑥ If the package iron is just right for the turning position, then you can only push the presser foot down to the left of the needle, and start sewing a bright thread on the left from the opening. Be careful not to forget the needle at the beginning and end of the crimp. Finally, remove the sparse stitches from the fabric;

⑦ For those who are skilled in driving, you don't need to sew first, but for the novice, a few more steps in the production process are still necessary. Although it is a bit more troublesome, it can guarantee satisfactory results.