Continue along the hem, working in small sections.
Once enough stitches are removed, gently unfold the hem.
If you see adhesive, interfacing, or another layer underneath, slow down even more so you don’t accidentally damage the material.
How to Remove a Zipper Seam
Zippers require extra caution because you’re working close to both
fabric and hardware.
Open the garment or item so you can clearly see the stitching.
Work on one stitch at a time, keeping the seam ripper pointed toward the thread rather than toward the zipper tape or fabric.
If the zipper itself is being replaced, removing the stitching gradually is much safer than trying to pull the zipper free.
Can You Use a Seam Ripper on Delicate Fabric?