Chainstitch

chain stitch sewing machine

A chain stitch is a form of stitching in which one continuous thread is looped back on itself, with no bobbin thread in between. Chain stitches are more flexible than lock stitches, which is why they're used in areas like jeans' waistbands and leg seams. Chain stitching is a classic hem stitch that provides a vibrant rope effect. It is constructed with a single continuous thread that loops back on itself. The characteristic rippling on the hem is caused by using a chain stitch, which pulls slightly on the denim. All of these machines do chain stitching. It looks like a regular stitch on the right side. But when you look on the other site