Invisible zippers are used in many products in life, which are mainly used in down jackets, denim jackets, leather jackets, high-end jackets, cold-proof clothing, etc. The invisible zipper is composed of chain teeth, sliders, limit codes or locking pieces. The fastener element is the key part, which directly determines the side pull strength of the zipper. Generally, the invisible zipper has two pieces of chain belt, and each piece of chain belt has a row of fastener elements, and the two rows of fastener elements are arranged in a staggered manner. Compared with nylon zippers and resin zippers, they are stronger and more expensive, and are mostly used on jeans, jackets and backpacks. Here are some tips on how to sew invisible zippers.
Before installing the Y tooth zipper, it is best to iron some adhesive lining on the zipper area, especially when sewing light weight or unstable fabrics, use a thinner one inch wide and the same length as the zipper opening. The adhesive lining of the sewing zipper will greatly help the effect and appearance of the sewn zipper.
1. The method of “overlapping” sewing zipper: 5/8 inch seam position of the garment car, stitch the zipper opening with dummy thread together with the seam position, then iron the seam position, and place the closed zipper front facing the seam position Place the reverse side of the garment piece so that the edge of the cloth on the right side of the zipper is aligned with the seam edge of the garment piece. Secure the zipper fabric to the seam with 1/4″ seams, being careful not to snag the garment, then turn the zipper over to the front and tuck the zipper along the fake seam or as close to the fake seam as possible. On the other side, open the fabric again so that the piece is facing up, stitch a 3/8″ wide topstitch from the bottom front of the zipper to the top, then remove the basting.
2. The method of sewing zipper in “invisible form”: Invisible form is an easy and fast way to install zipper, because it does not need fake sewing thread and front sewing thread, using invisible zipper presser foot, it can The thread is drawn as close to the zipper teeth as possible to achieve the invisible effect of the zipper “disappearing” in the garment panel when viewed from the front.
3. The method of “middle seam” sewing zipper: car the sewing position of the clothes, iron the seam, first sew the selvedge of the zipper on the seam of the garment, and then stitch the top line on the front of the clothes, and car to the appropriate location. To be flat, do not make the edge arched, use the unilateral presser foot from the bottom to the top, use the zipper foot, you can make the sewing line closer to the zipper teeth, the line spacing is 3/8 inch, you can use it before the top line Paint the 3/8-inch stitching position on the front of the garment, and then remove the fake stitching at the zipper opening after the car is topstitched, so that the zipper can be opened.
