Invisible Zipper: Invisible Zipper (隐形拉链)
A zipper designed so the teeth are concealed behind a folded tape edge and are almost invisible from the face side when closed. It is widely used in dresses, skirts and soft furnishings where a clean seam is required. The tape is narrow and soft, and the slider is small, so sewing precision matters. Invisible zippers demand careful seam allowance control and are usually installed with a special presser foot.