The devices have 1 to 6 channels. The path described refers to a single channel.
The patch:
it is driven by an auxiliary circular reel controlled at variable speed (A, point 1);
passes through a piece guide comb (fig. A, 2) with a safety stop device through
a funnel (fig. A, 5)
is dragged together with the bath through a U-shaped tube (fig. A, 3),
reaches the relaxation chamber (fig. A, 4) where it floats in the bath without any tension and
via a spindle it continues on its path, of which they are adjustable (fabric speed from 10 to
200 meters per minute), the thrust of the circulation pump and the rotation speed of the reel
(fig. A, 1).
The mechanical action exerted on the tissue by the overflow (0.4 Bar) is lower than that caused by the jet
(1.5 Bar) and for this reason it is preferable for dyeing very delicate fabrics.