What is four needles 3 lines?
Yoga is becoming more and more popular since the last century because the fabric is
stretchy and strongth.But people does not have a stretchy stitching method to sew yoga
pants which is both looks beautiful and strong.So Olympus Japan introduced and
developed a curved back stitching machine to stitch and join the seams. The machine is
sewn with the internationally recognized ISO607 stitch, which is extremely dynamic and
consists of four upper threads, one bottom thread and one halon line. It has a unique high
elasticity, flat and high strength seaming effect.Below we show some photos of 4 needles
6 lines.