A multifunctional continuous dyeing apparatus provided at a bottom with a main body within which are formed in a sequence, with reference to the feeding direction of the yarn, at least a first dyeing group for the yarn, provided with a respective first squeezing device of the yarn, an oxidation or diffusion/fixation group, placed downstream of the first dyeing group and arranged for the oxidation of the dyed yarn or for the diffusion/fixation of the dye in the fiber of the dyed yarn, and at least a second dyeing group of the yarn, arranged downstream of the oxidation or diffusion/fixation group and in turn provided with a respective second squeezing device of the yarn, where at least the first dyeing group, the first squeezing device, the oxidation or diffusion/fixation group and the second dyeing group are hermetically sealing enclosed by at least one covering case, integral at the top with the main body, and provided with a plurality of doors which are at least partially openable to perform the dyeing of the yarn in an environment exposed to air and which are reclosable to perform the dyeing of the yarn in an inert environment under nitrogen.

The invention relates to a generator which is generally used in the textile field and integrated into the steaming machines (chambers) enabling the dying material of the pattern-printed or plain-dyed fabrics dyed with the various dyes to be bound on the fabric such as not to be removed again, which enables the dyed fabrics to be kept in the saturated steam, superheated steam or hot air conditions for a certain period of time, and which is capable of forming each of these three phases.

A multifunctional continuous dyeing apparatus provided at a bottom with a main body within which are formed in a sequence, with reference to the feeding direction of the yarn, at least a first dyeing group for the yarn, provided with a respective first squeezing device of the yarn, an oxidation or diffusion/fixation group, placed downstream of the first dyeing group and arranged for the oxidation of the dyed yarn or for the diffusion/fixation of the dye in the fiber of the dyed yarn, and at least a second dyeing group of the yarn, arranged downstream of the oxidation or diffusion/fixation group and in turn provided with a respective second squeezing device of the yarn, where at least the first dyeing group, the first squeezing device, the oxidation or diffusion/fixation group and the second dyeing group are hermetically sealing enclosed by at least one covering case, integral at the top with the main body, and provided with a plurality of doors which are at least partially openable to perform the dyeing of the yarn in an environment exposed to air and which are reclosable to perform the dyeing of the yarn in an inert environment under nitrogen.

A continuous dyeing plant for a warp thread including a plurality of dyeing/squeezing groups arranged in line, each of which is provided with a respective impregnation or dyeing tank in which the warp thread is immersed, and an oxidation apparatus that has a plurality of upper and lower return rollers, configured to arrange the warp thread on a plurality of vertical planes parallel to each other, and a support frame having at least one upper strut and at least one lower strut, where a plurality of upper return rollers are mounted on the upper struts, such that at least one part of the lower return rollers is rotatably mounted on at least one respective support device that is movable in the vertical direction between a first operating position, in which the movable support device is placed close to the lower struts to keep the lower return rollers at a maximum predefined distance from the corresponding upper return rollers, and a second operating position, in which the movable support device is placed close to the upper struts to keep the lower return rollers at a minimum predefined distance from the corresponding upper return rollers.

A description is provided of an apparatus for dyeing a textile support comprising a single tank which is provided in its interior, in sequence, with: one first shaped cavity having a watertight function between the surrounding environment and the tank; one first internal partition wall, which is immersed in the lower part in the dye bath of the first shaped cavity for helping the watertight function; one first dyeing compartment and at least one second dyeing compartment which each comprise at least one return roller for the textile support, at least one dispensing device to dispense the dye bath on the textile support, and at least one squeezing device; a second shaped cavity containing the dye bath having a watertight function between the tank and the surrounding environment; and a second internal partition wall, which is immersed in the lower part in the dye bath of the second shaped cavity for helping the watertight.