Since it is built on the structure of a 404 BUSI J TERRY machine, the 404 TWIN LAYER has all the same TEXTILE POSSIBILITIES as the original machine.
In addition to this, using the dial needles and a special patented device which is integrated in the dial itself, the knitting machine can produce socks with double layer. It is in fact possible knitting two fabrics at the same time: one inside the other.
The external sock is produced in a conventional way by the cylinder needles while the internal sock is knitted by the dial needles.