Why does the zipper warp or wave?
Understanding Zipper Waviness and Zipper QC Zipper waviness—sometimes called zipper rippling—occurs when the fabric around a zipper looks wavy, bumpy, or uneven after being sewn in. For apparel brands and garment factories, controlling zipper waviness is a crucial aspect of zipper QC (Quality Control), as it directly impacts the finished product’s appearance and perceived quality. […]
