MACHINE FOR ENVIRONMENTALLY SUSTAINABLE DYEING, WITH INDIGO AND OTHER DYES, OF HANK YARNS AND/OR READY-MADE GARMENTS

A description is provided of a dyeing machine comprising: a dyeing apparatus provided with a casing enclosing a dye compartment and a hermetically sealed hatch which permits access to the dye compartment; a support frame, which rotates within the dye compartment; at least one tank containing a dye bath; a hydraulic circuit, which is connected hydraulically to each tank and to the dyeing apparatus in order to supply the dye bath from each tank to the dye compartment and vice versa; and a plurality of support means for the hank yarns and/or the ready-made garments to be dyed. The support means are mounted on the support frame and are accessible via the hatch. Both the casing and the support frame have a preferably circular form in transverse cross-section, such that the casing has a cylindrical frontal wall and the dye compartment has a cylindrical form. The hatch is provided on the cylindrical frontal wall of the casing and the support means are disposed on the support frame according to a configuration which is preferably circumferential with respect to a central axis of rotation of the support frame, and the means are placed in the vicinity of the inner surface of the cylindrical frontal wall of the casing. The hydraulic circuit comprises one or more circuits for supply of nitrogen and air, which are connected hydraulically to each tank and to the dye compartment, such as to be able to supply them with nitrogen.