How to sew a Welt Pocket of a Jacket Blazer

The white strip is just a “PP strap“ that is often used for packing work. This is in order not to slide while sewing (sewing gap). When the thickness of the fabric is different, the pressure of the presser foot and the feed dog are not stable. Putting this tape means adding the height, this is very useful. It is used for stitch guide in this case.(07:46) 1 needle sewing machine : DDL-5550N JUKI 1 needle overlock sewing machine : MO-3604 JUKI Button hole sewing machine : DIANA D-2002- BABYLOCK Bar tack an