SewLibra:
Round off the ends to avoid the corners being too "pointy". It is more professional looking, as is a tight fit over the pillow form.
SewLibra:
I had to shorten my invisible zips because they were too long. Remember to sew a new stopper at the bottom. I use the button sewing feature on my machine.
SewLibra:
Pin your first zip side on. I sewed through both layers, not typical for an invisible zip but with a pillow the seams bulge from pressure of the pillow form. I did not want those teeth to show! Upholstery fabric is thick so the stitches get buried.
SewLibra:
If you don't have an invisible zip foot, you won't regret getting one. They are wonderful!
SewLibra:
After sewing both sides of the zip, sew the rest of the seam on each end. Remember to pull out the zip tape ends so they don't get in the seam.
SewLibra:
Open the zip first, turn inside out, baste the perimeter on your sewing machine and then serge. The rounded corners make this easy, all in one swoop.