I always have problems with invisible zippers. I suppose it's me that is the problem, but I also feel like the material they're made out of (nylon?) is not good. Here's what I do:
Press the zipper flat (being careful not to melt it)
baste it to the dress, and make sure it fits
use a regular zipper foot to stitch close to the teeth (not on the teeth)
The zippers I sew are difficult to zip, and, as was the case last night, the teeth got shifted and I was stuck in it for an hour.
I don't know if I have enough fabric in the seam allowance (there's maybe 1.25") to do a regular zipper with a placket (I've never done one before). This is for my wedding, in one week, so it's sort of important that the solution is quick and looks good. Help!
edit: how much seam allowance do i need for a zipper such as http://www.taunton.com/threads/pages/t00202.asp
? and i assume i put the zipper in and then sew up the back seam?