Yarn dyeing device

A device for dyeing a moving yarn, wherein the device comprises:

• at least one supply line for liquid dye,
• a first deposition nozzle positioned above a path for the moving yarn, wherein the first deposition nozzle is configured to deposit a liquid dye on a first surface of a portion of a length of the yarn,
• a second deposition nozzle positioned above the path for the moving yarn and downstream from the first deposition nozzle, wherein the second deposition nozzle is configured to deposit the liquid dye on a second surface of the same portion of the length of the yarn, the second surface corresponding to a surface arranged opposite the first surface relative to an axis of the yarn,
• a synchronizing mechanism for synchronizing the successive deposition of the liquid dye by the first deposition nozzle and the second deposition nozzle, wherein the synchronizing mechanism is configured to control an amount of the liquid dye deposited by the first deposition nozzle on the first surface based on movement of the yarn and such that a thickness of the yarn is not impregnated by the liquid dye and such that the amount of liquid dye on the yarn comprises a weight imbalanced on the first surface to generate axial pivoting of the yarn under the effect of gravity of the liquid dye deposited by the first deposition nozzle, between the first nozzle and the second nozzle and such that the second surface faces the second deposition nozzle when the portion of the yarn is at the second deposition nozzle.