How To Finish A Bias Faced Neckline Edge At The Zipper
A bias faced neckline finish, uses a bias strip facing to enclose the neck's raw edge similar to a conventional shaped facing. When sewing a bias facing to a neckline with a zipper opening, the ends of the bias facing ends have to be treated separately to enclose the raw edges at each zipper opening portion. In this instance, you can use a simple folding and hand stitching technique to permanently enclose all raw edges.
Once the bias facing is stitched to the neck edge and folded inward to enclose all ra wedges, fold the excess bias facing ends inward to enclose their raw edges. The vertical folded edge created should align on top of the zipper tape, next to the zipper teeth without completely obstructing them. Pin the folded layer in this position, inserting the pins perpendicular to the neckline edge.
Using a slipstitch, connect the facing's folded edge to the zipper tape underneath. Once applied, the stitch should not be visible along the zipper tape.
The rest of the bias facing is then stitch in the seam manner to seal and complete the bias faced neckline application.