The zipper must be flat, and the flat invisible zipper will be more docile and will not wrinkle and deform. Before wearing the invisible zipper, the invisible zipper must be ironed flat. Secondly, you must position yourself in advance when you wear clothes. You can use a pin to compare and fix the zipper on your clothes in advance. Before sewing the invisible zipper, the corners of the clothes must be wrapped, the edges of the clothes on the invisible zipper must be wrapped and sewn, and the edges of the clothes must be ironed, so that the zipper will not deviate and deform.

When wearing invisible zippers, we will encounter that clothes and zippers are always not in a straight line, and zippers will run off. In addition to mastering the pedaling strength of sewing machine, there is also a small skill that can be used. When sewing, we can sew one side of the zipper first, pull the zipper after sewing, fold the zipper in half and iron it, so that the zipper will be shaped, and then sew the other side, which can prevent the zipper from twisting well.

When the invisible zipper head falls off, you can first burn the top of the zipper on the clothes with a lighter to fix the running place, then straighten the zipper, put one side of the zipper head on the zipper, and then force the tweezers on the other side into the zipper head. At this time, straighten the zipper with both hands, and then pull the zipper up and down with your hands to ensure the progress.