Patent ID: 11952694
Assignee: MASTER S.R.L.
Field: Chemical engineering (Chemistry)
Classification: CPC D | IPC D

Claim 0:
1. A dyeing machine comprising at least one dyeing module (10) which in turn includes:
a first squeezing device (12) being configured to extract excess liquids from a textile support (100);
a first treatment tank (14) for the textile support (100) coming from said first squeezing device (12), said first treatment tank (14) being located downstream of said first squeezing device (12) and being configured to be at least partly filled with a first process liquid;
a central tank (16), located downstream of the first treatment tank (14) and configured to contain said first process liquid or a second process liquid, for either of the first process liquid and the second process liquid to prevent oxidation of the textile support (100) when dyeing with a diffusion/fixing of a dye in a fibre of said dyed textile support (100), or to operate in air to oxidise said dyed textile support (100);
a second treatment tank (18) for the textile support (100), said second treatment tank (18) being located downstream of the central tank (16) and being configured to be at least partly filled with the same first process liquid that fills the first treatment tank (14), or with another liquid; and
a second squeezing device (20) for said textile support (100), located downstream of the second treatment tank (18) and configured to remove excess liquids from said textile support (100), the dyeing machine further comprising:
a hydraulic system (62) to alternately supply, circulate and adjust the levels of the first process liquid and the second process liquid in the two treatment tanks (14, 18) and in the central tank (16) respectively; and
motorized stations (36, 38) for moving the textile support (100), the dyeing machine being wherein the first treatment tank (14) and the second treatment tank (18) have the same shape and the same dimensional and capacity characteristics, wherein the first treatment tank (14) and the second treatment tank (18) are symmetrical with respect to a plane of symmetry (P) lying in the central tank (16) and arranged perpendicularly with respect to the direction of the forward movement of the textile support (100), and wherein the motorized stations (36, 38) for moving the textile support (100) are configured to move forward said textile support (100) alternately in both directions, either from the first squeezing device (12) to the second squeezing device (20) sequentially through the first treatment tank (14), the central tank (16) and the second treatment tank (18), or from the second squeezing device (20) to the first squeezing device (12) sequentially through the second treatment tank (18), the central tank (16) and the first treatment tank (14).