Making collars
When hand sewing collars there are several tricks to make sure that the collar lays flat and there are not unwanted puckers.
Yes, this is the hand dyed fabric from the Gradient Dying Post
1) If there are curves in the garment, then snip within the seam allowance to allow the fabric to open more when aligning the collar.
2) As you sew, frequently check that both sides of the seam are laying flat as you sew and there are not folds. Re-adjust any folds to smooth out the seam.
In the video, Iām sewing from the center seam past the second shoulder (lost the footage for the first shoulder).