The invention relates to a bath and to a method of treating endless fibers, filaments or fabric webs, especially for electrolysis or for cleaning, comprising a bath container (4), which is at least partly filled with a processing fluid, and means for introducing the endless fibers, filaments or fabric webs, characterized in that the means are arranged in such a way that the endless fibers, filaments or fabric web are conducted in a V-shape through the bath.

A dyeing apparatus (10) is described which is provided with a single tank (12) comprising: side walls (14); a bottom wall (16), which has a convex outer surface; a first inner partition wall (18) and a second inner partition wall (20), which delimit a dyeing compartment (26) and define respectively a first interspace (28) and a second interspace (30); and at least one mobile and/or removable upper lid (32), which closes the dyeing compartment in a watertight sealed manner. A first hydraulic circuit (34, 36; 38, 40) is designed for circulation of a first process fluid (B), whereas a second fluid circuit (42) is designed for circulation of a second process fluid (N). The first hydraulic circuit comprises first means (34, 36) for entry/exit of the first process fluid, which are designed to feed the first process fluid up to a first predefined filling level (L1) both in the dyeing compartment and in the interspaces, and second means (38, 40) for entry/exit of the first process fluid, which are designed to feed the first process fluid up to a second predefined filling level (L2) both in the dyeing compartment and in the interspaces. The second distance (D2) is greater than the first distance (D1), so that the second predefined filling level (L2) is greater than the first predefined filling level (L1).

A dyeing apparatus (10) is described which is provided with a single tank (12) comprising: side walls (14); a bottom wall (16), which has a convex outer surface; a first inner partition wall (18) and a second inner partition wall (20), which delimit a dyeing compartment (26) and define respectively a first interspace (28) and a second interspace (30); and at least one mobile and/or removable upper lid (32), which closes the dyeing compartment in a watertight sealed manner. A first hydraulic circuit (34, 36; 38, 40) is designed for circulation of a first process fluid (B), whereas a second fluid circuit (42) is designed for circulation of a second process fluid (N). The first hydraulic circuit comprises first means (34, 36) for entry/exit of the first process fluid, which are designed to feed the first process fluid up to a first predefined filling level (L1) both in the dyeing compartment and in the interspaces, and second means (38, 40) for entry/exit of the first process fluid, which are designed to feed the first process fluid up to a second predefined filling level (L2) both in the dyeing compartment and in the interspaces. The second distance (D2) is greater than the first distance (D1), so that the second predefined filling level (L2) is greater than the first predefined filling level (L1).

An apparatus for desizing and/or shrinking a textile fabric, the textile fabric having a length and a width, the method including moving, lengthwise, the fabric, and wetting the fabric within a first pool of liquid, the first pool of liquid including water; passing the fabric through a chamber, and in the chamber contacting the fabric with at least one heatable roller heated at a treatment temperature; soaking the fabric with a main pool of liquid, the main pool of liquid including water; and treating the fabric with ozone. The apparatus includes a first module for wetting the fabric, a second module with a heatable roller for heating the fabric, a third module for soaking the fabric, and fourth module for treating the fabric with ozone. The second module may optionally be integrated with the first module.