|Getting bias tape to lay smoothly around curves isn't difficult. It's what it's supposed to do, but can be frustrating if you've not done it before. All you need to do is work a little bit at a time and press as you go.
The link provided goes to my blog, where I describe this tip for work on a vintage apron. I applied bias tape to the outside edges of pockets. However, the method works the same on most projects where double fold bias tape is applied to a curve.
Starting at the top edge, place the fabric inside the tape so that it hits the fold. Pin. Move ahead and repeat. As you come to the curve, work a little ahead so that the tape is distributed evenly around the curve.
Use the tip of your iron and press a tiny bit at a time, working from the outside in. Any puckers will smooth out. That's the beauty of bias tape. Then pin in place. Don't be afraid to use as many pins needed to keep the curve flat and the fabric in place.
Work all the way around then you're ready sew! After sewing, go back and press again. Voila!