1, first of all ready nylon zipper and need to zipper cloth; The place that needs to install zipper will use 1.5 cm wide seam first open seam again, and then separate the seam ironing. If you do not need to zipper the entire seam, the unzipped part should be tightly spaced and start and end with reverse stitches.
2, the nylon zipper face down and seam in the middle of the alignment, the use of hand sewing needle will be fixed and seam seam; Turn the cloth to the front and attach a single press foot for sewing the zipper. Push the press foot to the right of the needle and press a open thread on the fabric with a seam size of 0.7 cm, starting from the right of the opening of the nylon zipper.
3. When you finish stitching one side and prepare to sew the other side, first look at the position of the iron in the bottom zipper. If you can avoid it, you can directly turn 90 degrees and let the needle cross the top of the zipper to the other side to start stitching. When turning, the needle should be in a low position first, and then raise the presser foot, and then lower the presser foot to continue sewing after turning. When sewing on top of the zipper tooth, avoid breaking the needle by turning the sewing machine wheel by hand and letting the needle move carefully over the nylon zipper tooth.
4, if the wrapping iron is just in the turning position, then you only push the press foot to the left of the needle, from the opening to sew a left open line. Be sure to reverse the needle at the beginning and end of the line pressing. Remove the loose seams from the cloth; For the car law skilled people, can not be the first to open the seam, but for the novice, the production process more steps are necessary, although to trouble a little, but can ensure satisfactory effect.
