Wavy, Uneven, or Buckled Zippers After Sewing – 5 Common Causes and the Optimal Zipper Pre-Expansion Solution
In the garment industry, wavy, uneven, or buckled zippers after sewing are common issues—especially in high-precision products such as jackets, dresses, and sportswear. These problems negatively affect product aesthetics and quality, leading to higher costs due to rework or defects. So, what causes these zipper issues? And how can manufacturers [...]