SU423273A3 - DEVICE FOR DYEING TEXTILE MATERIAL - Google Patents

Description

one

The invention relates to a device for dyeing textile material in the finishing production of the textile industry.

A device for dyeing a textile material is known, which contains a tank with a dye solution, a separation column and a recirculation system consisting of a pipeline, control devices, pumps and heaters.

The known device does not allow for the continuous circulation of the dye solution throughout the process, which degrades the quality of dyeing and has limited application.

In order to improve the quality of spinning and use of the device for various types of material in the proposed device, the separation column consists of a boiler, a tank and two sections, one of which is used to select the dye fractions, and the other is a distillation unit and is equipped with a programmable selection condenser and a reversible refrigerator.

FIG. 1 schematically shows the proposed device with the selection in the liquid phase; in fig. 2 - the same, with the selection in the vapor phase.

The proposed textile dyeing device has a dyeing tank in the form of a tank 1 connected by pipe 2 to separation column 3 consisting of a boiler 4, a tank 5, a section 6 for sampling a dye fraction and a rectification section 7 equipped with a programmable selection condenser 8 refrigerator 9 and a regulatory system.

This system includes the diaphragm 10 for measuring the flow rate of the fraction, the control valve 11, the means 12 for controlling the regulated and recorded volume of the sample, the heat exchanger 13 and the gearbox 14.

The tank 5, located at the base of the separation column 3, which is the buffer tank for the dyeing solution, is filled with diluent through pipe 15. The bottom of tank 5 is connected by pipe 16 to pump 17 and heat exchanger 18. Pipe 19 serves to return the diluent to tank 5. Pipe 19 equipped with a valve 20 to maintain a predetermined volume of solution in the tank 1, controlled by a regulator 21 mounted on the level gauges 22 and 23 of the tank.

The upper part of the separation column 3 is connected by a pipe 24 to a condenser 8, which is connected to the tank 25. The latter is connected via a pipe 26 to an extractor 27 of constant volume and is controlled by a regulator 28. The temperature of the solution in the tank 1 is controlled by a thermostat 29.

The device provides for the selection of the liquid phase, and in the case of taking the vapor phase, the dye fraction on the line from the tank 1 is installed in the heat exchanger and the flow regulator, the diaphragm 10, the adjusting valve // and the control volume 12 are excluded.

Alternatively, the device (see FIG. 2) is used when the fraction withdrawn from the vapor phase contains: u a certain amount of diluent that can be separated and used again.

The proposed device works as follows.

For dyeing a textile material, the dye tank / is filled with a mixture of a solvent — a polar organic liquid in which the dye is dissolved, and a diluent — a non-polar chlorohydrocarbon in which the dyes dissolve poorly or do not completely dissolve. Both organic liquids are infinitely mutually soluble, the amount of diluent is always greater than the solvent, and the boiling point of the latter is almost always lower than the diluent.

The tank 1 is heated to the dyeing temperature and at the same time begins the gradual withdrawal of the liquid in which the dye is dissolved, and the latter is transferred to the textile material. Selection quantitatively is synchronized with the rate of dyeing so that by the end of the process the solution would be almost completely depleted and freed from the solvent.

The selected amount of solvent is compensated during the process with a diluent. Both applied organic liquids are regenerated during the process for reuse. Through pipeline 2, the selected fraction enters the

separator column 5, if necessary, heating in heat exchanger 13 or passage through reducer 14.

After condensation of the solvent in the condenser 8 and its accumulation in the tank 25, it is partially pumped out by the constant volume extractor 27 controlled by the regulator 28, and the residue is fed through the reflux condenser 9 into the separation column 3.

In the absence of a reflux condenser 9, the solvent accumulates in the tank 25.

The liquid fraction, completely or partially purified from the solvent, is collected in separation column 3, from where it is introduced into the tank at adequate temperature and pressure / through pipe 16, pump 17 and heat transfer I1C 18.

At the maximum level in the tank, the liquid / liquid fraction is returned to the reservoir 5 via the conduit 19 and the valve 20 controlled by the level regulator 21.

The proposed device provides the coloring of carpets, jersey linen, wool on reels and in the form of a cloth fabric.

Subject invention

A device for dyeing a textile material, containing a dye solution tank, a separation column and a recirculating system consisting of a pipeline, control devices, pumps and heaters, characterized in that, in order to improve the quality of the dyeing, the separation column consists of a boiler, a tank and two sections, one of which is used to select the dye fraction, and the other is distillation and is equipped with a condenser with programmed selection and a reflux condenser.

12. g

15

 Lxa i

CH - nd ;; and:

 11 10

29

 with

 i

L.

J

Z5

.t

ZJ: