Our world's first ideal ZARIF 2023 double thread chainstitch technology with rotary looper has revolutionised straight stitch sewing in the history of mankind.
Thanks to its rotary looper, it has made it possible for the first time to create a new double thread chainstitch type 401, in which the loops of the top and bottom threads are rotated by 180 degrees. As a result, the underside of the chain stitch is very similar to the lockstitch type 301, which uses a thick bottom thread.
It also allows the lockstitch type 301 to be large-scale replaced with our new double thread chain stitch type 401.
