This type of hidden zipper has been around a long time. The coils are rolled to the back of the zipper tape and are sewn to the fabric right along the seam line. During insertion the coils lay flat but after stitching they roll back and disappear into the seam, giving them their concealed, or hidden characteristic.
- Color wise, the most important part of the zipper is the tab. When properly inserted, this is all that shows on the outside of the garment.
- For best results, press zipper coils flat before sewing. Be sure to use a low temp on your iron to avoid a meltdown of the coils.
- Avoid using the Pivot function if you have this feature on your machine. You want the foot to stay in place as you move along the coils.
- If you have the updated Auto Up feature that automatically raises the foot when you stop sewing then you'll want this turned to OFF as well.