Abstract:
The steps of placing material to be treated in a container, forming the material as separate bodies by placing the material in separate chambers and providing a relatively small clearance between the bodies and the chambers; forming the chambers as part of a heat-exchanger and providing a circulating treatment fluid (heating or cooling) in controlled quantities and maintaining the temperature within the chambers at a desired level; circulating the fluid in a closed circulation system and recirculating the treatment fluid repeatedly through the bodies of material and/or reversing the direction of flow of treatment fluid through the chamber.
Abstract:
A pressure chamber rotatably supports internally a removable perforated tubular beam about which fabric to be treated is wrapped. The hollow beam is provided with a propeller rigidly mounted coaxially within the beam and is adapted to rotate the beam under the pressure of a dyeing liquid pumped therethrough. The dye beam is supported at one end by a rotary seal communicating with a conduit connected to a pump and at its other end by a hinged gate mounted to swing in proximity with a hinged hatch. A dolly having a cantilevered and hydraulically operated cradle is mounted on tracks for movement in and out of the vessel when the hatch is open to replace dye beams.
Abstract:
The disclosure embraces a method of dyeing and an apparatus comprising a horizontally extending generally cylindrical article dyeing vessel which is provided with a bank of nozzles extending along the interior bottom wall portion of the vessel; the nozzles are disposed to discharge liquid in a generally tangential direction with respect to the interior of the vessel; the nozzles are divided into groups each of which is connected to the out-put of a pump through one or more conduits. The conduit or conduits which deliver fluid to the nozzles are provided with a valve means so that the output of the nozzles can be controlled whereby a substantially uniform, circular fluid flow may be obtained. The vessel is provided with a suction liquid outlet slot on one side of the nozzles opposite the direction of fluid delivery and which extends the length of the vessel to enable the vessel to handle variably sized loads. A large unloading valve is provided to enable the vessel to be rapidly emptied and fluid nozzles are arranged on the interior of the vessel to flush articles out through the unloading valve.
Abstract:
A method for kier-dyeing packaged yarn in a discontinuous manner employing a chlorinated solvent as the sole fluid to evacuate the air from the kier and to heat the yarn to achieve dye fixation temperature as the principal vehicle for the dye formulation, and as the means for recovering residual solvent from the dyed yarn packages and kier. The method is practiced by subjecting a kier, which has been loaded with packages of yarn to be dyed, to an initial vacuum followed by introduction of vapors of a chlorinated solvent into the bottom of the kier until the kier is filled with such vapors and substantially all air has been evacuated, discontinuing the exhaustion under vacuum but continuing the introduction of vapors to the kier until the contents achieve the temperature of the vapors, introducing a solvent dyebath into the kier and circulating the dyebath through the kier until the dyebath is spent, removing the spent dyebath from the kier under the pressure of solvent vapors, and circulating the vapors to a heater to superheat the vapors, returning the vapors to the kier, condensing vapors in excess of those necessary to fill the kier and superheater, continuing the circulation of vapors until the solvent is substantially completely removed from the yarn in the kier. Residual solvent is removed by evacuating and purging the kier with an inert gas. Thereafter, the kier is cooled to enable removal of the yarn packages. Finally, solvent is recovered from the spent dyebath and returned to storage.
Abstract:
A dye beam of adjustable width comprises a hollow shaft having perforations in its centre portion to permit the passage of treatment liquor, two endplates on the shaft, one or both of which may be movable, and a telescopic outer framework cooperating with the endplates for supporting a textile fabric, the width of the outer framework being adjustable by movement of the endplates. The framework is preferably made up of overlapping groups of circumferentially spaced perforated U-section elements mounted on the hollow shaft and movable relative to one another with the endplates in the general axial direction of the shaft.
Abstract:
An improved package yarn dyeing system adapted for operation above the boiling point including a dye chemical add tank receiving a predetermined amount of diluting bath liquid before it is siphoned into an expansion tank and fed from there to the pump inlet feeding a kier through a heat exchanger. Further bath dilution and line washing as well are achieved by an add tank bypass line through which bath liquid is circulated. The add tank fill line emanates from the pump outlet and the kier dome is tapped by an additional expansion tank feed line to enhance and speed up dilution uniformity. The part of the equipment for circulating the dye back and forth through the packages may be isolated from the rest of the system and is protected against pressure damage by an expansion chamber containing a small volume of entrapped air.
Abstract:
Device for the wet treatment of packed and similar textile materials, comprising a hermetically locked enclosure, containing the treatment bath for the material, and the interior of which is divided into two chambers. One of these chambers communicates with the interior of the perforated cores which carry the packed material to be treated and their perforated tubular supports and the other chamber communicates with the outside of these cores. Both these chambers are separated by a volumetric alternating treatment bath impelling mechanism, this mechanism is of a type made up of a piston, a membrane pump or rotating pump. Said alternating treatment bath impelling mechanism impels, during every one of its to and fro strokes a part of the treatment bath and compels it to pass through the textile material or, respectively, from the inside of same towards the outside and from the outside towards the inside. The treatment bath volume which each time flows through the textile matter from the outside towards the inside of same is being kept enclosed in said chamber which communicates with the inside of the perforated tubular supports which support the textile material, and is at same time kept separated from the remainder of the total treatment bath volume which has not passed through the textile matter.
Abstract:
A working tank for treating fibers has distributor means located along the inner wall of said working tank to provide a flow extending substantially at right angles to sleeves consisting of rolled fibers and located inside the tank.
Abstract:
In a method for treating textile materials and in particular in a method of beam-dyeing fabrics, a pressurized gas in a finely divided state is introduced into the treating liquid in a ratio of 0.1-10 liters per minute for every 10,000 liters per minute of treating liquid. The size of the gas bubbles are maintained small enough so that they enter between and separate the filaments of the textile material. These gas bubbles, and the treating liquid, are forced through the textile material by a pump, and the surplus gas is removed from the top of the container housing the textile material.