Multifunctional dyeing and finishing kettle and industrialized supercritical CO.SUB.2 .fluid anhydrous dyeing and finishing apparatus with a scale over 1000 liters

Abstract

The present invention discloses a multifunctional dyeing and finishing kettle and a production-type supercritical CO.sub.2 fluid anhydrous dyeing and finishing apparatus with a scale over 1000 liters. The production-type supercritical CO.sub.2 fluid anhydrous dyeing and finishing apparatus mainly comprises a CO.sub.2 low-temperature storage tank, a CO.sub.2 supply storage tank, a low-temperature transfer pump, an ethylene glycol head tank, an ethylene glycol pump, a water cooling tower, a water pump, a refrigeration unit, a condenser, a heat exchanger, a heat transfer oil system, a heat transfer oil replenishment system, a precooler, a CO.sub.2 boost pump, a dye kettle, a feeder, a multifunctional dyeing and finishing kettle, a CO.sub.2 circulation pump, a cooler, a separation kettle, an adsorber and a recovery compressor, an on-line monitoring system and an automatic control system. The apparatus is capable of meeting single-color or multi-color dyeing and finishing production of a plurality of textiles.

Claims

1. A multifunctional dyeing and finishing kettle, comprising: a kettle body having a top end and a bottom end, wherein the kettle body comprises a plurality of compartments; a plurality of gas-solid separation membranes arranged in the kettle body and divide the kettle body into the plurality of compartments; a magnetic driver affixed to the kettle body and configured to rotate in response to a magnetic device arranged outside the multifunctional dyeing and finishing kettle, wherein the rotation of the magnetic driver drives the kettle body to rotate, wherein a CO.sub.2 fluid inlet is provided in the bottom end of the kettle body, wherein a fluid distribution tube is disposed along an axial direction of the kettle body, and wherein the fluid distribution tube is of a porous structure.

2. The multifunctional dyeing and finishing kettle according to claim 1, wherein the plurality of gas-solid membranes are gas-solid separation membrane I, gas-solid separation membrane II, gas-solid separation membrane III, and gas-solid separation membrane IV, wherein a first compartment is disposed between gas-solid separation membrane I and gas-solid separation membrane II, a second compartment is disposed between gas-solid separation membrane II and gas-solid separation membrane III, a third compartment is disposed between gas-solid separation membrane III and gas-solid separation membrane IV, and a fourth compartment is disposed between gas-solid separation membrane IV and a top end of the kettle body, wherein, during operation, a dye is placed in the first compartment, a dye finishing agent is placed in the second compartment, and a textile is placed in the fourth compartment, and a supercritical CO.sub.2 fluid enters the kettle body through the CO.sub.2 inlet, dissolves the dye in the first compartment, dissolves the dye finishing agent in the second compartment, passes through the third compartment, and fills the fourth compartment to dye the textile placed therein.

3. The multifunctional dyeing and finishing kettle according to claim 2, wherein the textile is wound on the fluid distribution tube.

4. The multifunctional dyeing and finishing kettle according to claim 1, wherein the fluid distribution tube has pores that are 1 mm in size.

5. An anhydrous dyeing and finishing apparatus, comprising at least one multifunctional dyeing and finishing kettle according to claim 1 fluidly connected with a CO.sub.2 storage system.

6. The anhydrous dyeing and finishing apparatus according to claim 5, further comprising a feeder connected to the at least one multifunctional dyeing and finishing kettle, wherein the feeder comprises a screw propeller, a screw, a dye unit, and a hollow elastic cavity arranged in sequence, wherein the dye unit is a hollow vessel having a sidewall, a sealed front end, and a sealed rear end, wherein the sidewall has pores of 0.05 micron to 1 micron in size and an openable and closable door is arranged on the sidewall, wherein the sealed front end is connected with the screw, and wherein the hollow elastic cavity opens into the at least one multifunctional dyeing and finishing kettle.

7. The anhydrous dyeing and finishing apparatus according to claim 6, further comprising a CO.sub.2 storage system, a refrigeration system, a heating system, a dyeing circulation system, a separation and recovery system, and an automatic control system, wherein the CO.sub.2 storage system comprises a low-temperature transfer pump, a CO.sub.2 low-temperature storage tank, and a CO.sub.2 supply storage tank connected in sequence, wherein the refrigeration system comprises an ethylene glycol head tank, an ethylene glycol pump, a refrigeration unit, and a condenser, wherein the heating system comprises a heat exchanger, wherein the dyeing circulation system comprises a precooler, a CO.sub.2 boost pump, a dye kettle, the feeder, the at least one multifunctional dyeing and finishing kettle, and a CO.sub.2 circulation pump, wherein the separation and recovery system comprises a cooler, a separation kettle, a dehydration kettle, an adsorber, and a recovery compressor, wherein the recovery compressor is provided between the at least one multifunctional dyeing and finishing kettle and the CO.sub.2 supply storage tank, wherein the automatic control system comprises a control cabinet, an electromagnetic valve, a display instrument and an electronic computer, wherein, during operation, the low-temperature transfer pump transfers liquid CO.sub.2 from a source to the CO.sub.2 low temperature storage tank, liquid CO.sub.2 from the CO.sub.2 low-temperature storage tank enters the CO.sub.2 supply storage tank first, then flows through the precooler to be condensed, and is then injected into the dyeing and finishing apparatus by the CO.sub.2 boost pump, wherein the liquid CO.sub.2 is heated in the heat exchanger to reach a supercritical state, the supercritical CO.sub.2 fluid from the heat exchanger enters the dye kettle and dissolves a dye or a finishing agent and then flows into the at least one multifunctional dyeing and finishing kettle to dye and finish a textile in the kettle body, wherein the supercritical CO.sub.2 fluid from the at least one multifunctional dyeing and finishing kettle is cooled by the cooler and then enters the separation kettle in which a first portion of dye or finishing agent is separated from CO.sub.2 gas, wherein the CO.sub.2 gas from the separation kettle then flows through the adsorber to adsorb a second portion of dye or finishing agent that remains in the CO.sub.2 gas to form a purified CO.sub.2 gas, wherein the purified CO.sub.2 gas is cooled and liquefied in the condenser and fed to the CO.sub.2 supply storage tank, wherein, after the at least one multifunctional dyeing and finishing kettle and the CO.sub.2 supply storage tank reaches a pressure balance, the recovery compressor is started, and a residual CO.sub.2 gas flows through the adsorber and the condenser in sequence and enters the CO.sub.2 supply storage tank.

8. The anhydrous dyeing and finishing apparatus according to claim 6, further comprising a monitoring system that contains a chromatograph configured to perform chromatography of the supercritical CO.sub.2 fluid from the at least one multifunctional dyeing and finishing kettle.

9. The anhydrous dyeing and finishing apparatus according to claim 7, wherein the dehydration kettle is a double-cylinder dehydration kettle, and a heating device and a molecular sieve are arranged in the dehydration kettle.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

(1) FIG. 1 is an schematic drawing of a vertical type industrialized supercritical CO.sub.2 fluid anhydrous dyeing and finishing apparatus with a scale over 1000 liters;

(2) FIG. 2 is a schematic drawing of a horizontal type industrialized supercritical CO.sub.2 fluid anhydrous dyeing and finishing apparatus with a scale over 1000 liters;

(3) FIG. 3 is a schematic drawing of an integrated dyeing and finishing system in a multifunctional dyeing and finishing kettle;

(4) FIG. 4 is a top view of the integrated dyeing and finishing system in the multifunctional dyeing and finishing kettle; and

(5) FIG. 5 is a structural schematic drawing of a feeder.

(6) In drawings, reference numerals represent the following parts: 1CO.sub.2 transport vehicle; 2low-temperature transfer pump; 3ethylene glycol head tank; 4water cooling tower; 5water pump; 6refrigeration unit; 7ethylene glycol pump; 8condenser; 9CO.sub.2 supply storage tank; 10precooler; 11CO.sub.2 boost pump; 12heat exchanger; 13dye kettle; 14feeder; 15multifunctional dyeing and finishing kettle I; 16multifunctional dyeing and finishing kettle II; 17heat transfer oil replenishment system; 18heat transfer oil system; 19CO.sub.2 circulation pump; 20on-line monitoring system; 21cooler; 22separation kettle; 23adsorber; 24recovery compressor; 25electric hoist; 26CO.sub.2 low-temperature storage tank; 27support vehicle; 28dehydration kettle I; 29dehydration kettle II;

(7) 151CO.sub.2 fluid inlet; 152magnetic rotator; 153gas passageway; 154gas-solid separation membrane I; 155gas-solid separation membrane II; 156dye unit; 157gas-solid separation membrane III; 158finishing agent unit; 159gas-solid separation membrane IV; 1510uniform mixing unit; 1511fluid passageway; 1512textile dyeing and finishing unit; 1513dyeing and finishing system lifting ring; 1514fluid distribution tube; 1515universal wheel;

(8) 141screw propeller; 142screw; 143front sealed end; 144dye unit; 145rear sealed end; 146dye kettle; 147elastic cavity.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

(9) The specific embodiments of the present invention are described in detail below with reference to FIGS. 1-5.

(10) As shown in FIG. 3 and FIG. 4, a dye finishing agent unit in each of the multifunctional dyeing and finishing kettle I 15 and the multifunctional dyeing and finishing kettle II 16 comprises a gas-solid separation membrane I 154, a gas-solid separation membrane II 155, a gas-solid separation membrane III 157 and a gas-solid separation membrane IV 159 in sequence from bottom to top. A dye unit 156 is formed between the gas-solid separation membrane I 154 and the gas-solid separation membrane II 155. A finishing agent unit 158 is formed between the gas-solid separation membrane II 155 and the gas-solid separation membrane III 157. A uniform mixing unit 1510 is formed between the gas-solid separation membrane III 157 and the gas-solid separation membrane IV 159.

(11) As shown in FIG. 5, a dye kettle 13 is connected with a feeder 14 and can serve to add dyes or finishing agents timely in the dyeing and finishing production process, so as to solve the problem that the dyes or auxiliaries in the dye kettle are likely to cure and cake. By adding different dyes or finishing agents, the color blending and multifunctional production demands can be met. The feeder is of a screw propulsion structure and comprises a screw propeller, a screw and a dye unit in sequence. The dye unit is a hollow vessel whose sidewall is of a porous structure with an aperture of 0.05 micron. An openable and closable door is arranged on the sidewall of the vessel. The end parts of the vessel are a front sealed end and a rear sealed end respectively. The front sealed end is connected with the screw. A hollow elastic cavity is provided outside the dye unit, connected with the dye kettle and goes deep into the dye kettle. The elastic cavity is provided with an opening.

(12) The dyes or finishing agents can be placed in the dye unit. With the operation of the screw propeller, the dye unit moves along the elastic cavity and enters the dye kettle. After the dye unit enters the dye kettle in place, the supercritical CO.sub.2 fluid enters the dye unit from the porous structure of the sidewall of the dye unit, makes the dye or finishing agents in the dye unit dissolved, and then flows into the dye kettle.

Example 1

(13) As shown in FIG. 1, liquid CO.sub.2 in a CO.sub.2 transport vehicle 1 flows into a CO.sub.2 low-temperature storage tank 26 through a low-temperature transfer pump 2 to perform a CO.sub.2 inflation process. When the liquid level of CO.sub.2 rises to , the inflation process is stopped for use of the dyeing and finishing production. Disperse red 153 is placed in the dye unit within the multifunctional dyeing and finishing kettle I 15, and disperse blue 148 is placed in the dye unit in the multifunctional dyeing and finishing kettle II 16, wherein an amount of the dyes accounts for 2% by weight of fabrics. 100 kg of Dacron fabrics are wound on a fluid distribution tube 1514 of a textile dyeing and finishing unit respectively, and an integrated dyeing and finishing system is loaded into the multifunctional dyeing and finishing kettle I 15 and the multifunctional dyeing and finishing kettle II 16 by means of an electric hoist 25. An automatic control system of a dyeing device is started, the multifunctional dyeing and finishing kettle I 15 and the multifunctional dyeing and finishing kettle II 16 are shut down, and a system self-check program is opened to ensure that a kettle body and an electromagnetic valve are located in a correct startup or shutdown state. After the system self-check is normal, a water cooling tower 4, a water pump 5 and an ethylene glycol pump 7 are started in sequence, and a refrigeration unit 6 and a heating system are then started. The liquid CO.sub.2 in the CO.sub.2 low-temperature storage tank 26 enters the CO.sub.2 supply storage tank 9 first and then flows through a precooler 10 to be condensed and is injected into the dyeing and finishing apparatus by a CO.sub.2 boost pump 11 to complete a pressure boosting process. Liquid CO.sub.2 is heated by a heat exchanger 12, such that the liquid CO.sub.2 enters a supercritical state. After entering the multifunctional dyeing and finishing kettle I 15 and the multifunctional dyeing and finishing kettle II 16, supercritical CO.sub.2 flows through the dye finishing agent unit in the integrated dyeing and finishing system to make dyes dissolved and then enters the textile dyeing and finishing unit to dye the Dacron fabrics. After the temperature and pressure reach 140 C. and 24 MPa, the CO.sub.2 boost pump 11 is closed. An electromotor connected with the multifunctional dyeing and finishing kettle I 15 and the multifunctional dyeing and finishing kettle II 16 is started, such that an outer magnetic lining sleeving the kettle body rotates to drive a magnetic rotator 152 provided in the integrated dyeing and finishing system to move, and therefore the in integrated dyeing and finishing system rotates forwards for 30 min at a speed of 50 r/min and then rotates reversely for 30 min at a speed of 50 r/min, to complete the dyeing of the Dacron fabrics with the dyes.

(14) After the dyeing and finishing process is completed, a valve V14 is opened, CO.sub.2 fluid containing unused dye flows through a cooler 21 first to be cooled to 30 C. and flows through a separation kettle 22 to realize deep separation with the unused dyes and CO.sub.2 gas. The CO.sub.2 gas is purified again in an adsorber 23 to obtain clean CO.sub.2 gas, and the obtained clean CO.sub.2 gas is liquefied by a condenser 8 and then recovered into the CO.sub.2 low-temperature storage tank 26, for next dyeing production. After the multifunctional dyeing and finishing kettle I 15, the multifunctional dyeing and finishing kettle II 16 and the CO.sub.2 low-temperature storage tank 26 reach a pressure balance, a recovery compressor 24 is started to continue the recovery of the CO.sub.2 gas in the multifunctional dyeing and finishing kettle I 15 and the multifunctional dyeing and finishing kettle II 16. The clean CO.sub.2 gas purified by the adsorber 23 is liquefied by the condenser 8 and then enters the CO.sub.2 low-temperature storage tank 26. After the pressure in the multifunctional dyeing and finishing kettle I 15 and the multifunctional dyeing and finishing kettle II 16 is reduced to 0 MPa, the recovery compressor 24 is shut down. The multifunctional dyeing and finishing kettle I 15 and the multifunctional dyeing and finishing kettle II 16 are started to obtain the dyed Dacron fabrics.

(15) After testing, the Dacron fabrics dyed with the disperse red 153 have a K/S value of 20.9, a standard deviation of the K/S value is less than 0.01, and therefore the Dacron fabrics have good leveling property and can meet the requirements of commercial dyeing. In the meantime, the dyed Dacron fabrics dyed with disperse red 153 have a color fastness level to washing of 5, a fastness level to dry grinding of 4-5, a fastness level to wet grinding of 4-5 and a color fastness level to sunlight of 6. The Dacron fabrics dyed with the disperse blue 148 have a K/S value of 17.5, a standard deviation of the K/S value is less than 0.02, and therefore the Dacron fabrics have good leveling property and can meet the requirements of commercial dyeing. In the meantime, the dyed Dacron fabrics dyed with the disperse blue 148 have a color fastness level to washing of 5, a fastness level to dry grinding of 5, a fastness level to wet grinding of 5 and a color fastness level to sunlight of 6.

Example 2

(16) As shown in FIG. 1, liquid CO.sub.2 in the CO.sub.2 transport vehicle flows into the CO.sub.2 low-temperature storage tank through a low-temperature transfer pump to perform a CO.sub.2 inflation process. When the liquid level of CO.sub.2 rises to , the inflation process is stopped for use of the dyeing and finishing production. Disperse orange 30 is placed in the dye kettle, wherein an amount of the dye accounts for 1% by weight of fabrics. 50 kg of Dacron cheese yarns sleeve the fluid distribution tube 1514 of the textile dyeing and finishing unit respectively, and the integrated dyeing and finishing system is loaded into the multifunctional dyeing and finishing kettle I 15 and the multifunctional dyeing and finishing kettle II 16 by means of an electric hoist. The automatic control system of the dyeing device is started, the multifunctional dyeing and finishing kettle I 15 and the multifunctional dyeing and finishing kettle II 16 are shut down, and a system self-check program is opened to ensure that the kettle body and the electromagnetic valve are located in a correct startup or shutdown state. After the system self-check is normal, the water cooling tower, the water pump and the ethylene glycol pump are started in sequence, and the refrigeration unit and the heating system are then started. The liquid CO.sub.2 in the CO.sub.2 low-temperature storage tank enters the CO.sub.2 supply storage tank first and then flows through the precooler to be condensed and is injected into the dyeing and finishing apparatus by the CO.sub.2 boost pump to complete a pressure boosting process. Liquid CO.sub.2 is heated by the heat exchanger, such that the liquid CO.sub.2 enters a supercritical state. The supercritical CO.sub.2 enters the dye kettle to dissolve the dye, and the supercritical CO.sub.2 fluid carried with the dye enters the multifunctional dyeing and finishing kettle. After the temperature and pressure reach 140 C. and 24 MPa, the CO.sub.2 boost pump 11 is shut down, and a circulation pump is started to drive supercritical CO.sub.2 fluid to continuously circulation between the dye kettle and the multifunctional dyeing and finishing kettle I 15 and the multifunctional dyeing and finishing kettle II 16, thereby realizing dyeing production of the Dacron cheese yarns. After 30 min of dyeing, the circulation pump is shut down, the valve V14 is opened, CO.sub.2 fluid containing unused dye flows through the cooler first to be cooled to 30 C. and flows through the separation kettle to realize deep separation from the unused dye and CO.sub.2 gas. The CO.sub.2 gas is purified again in the adsorber to obtain clean CO.sub.2 gas, and the obtained clean CO.sub.2 gas is liquefied by the condenser and then recovered into the CO.sub.2 low-temperature storage tank. After the multifunctional dyeing and finishing kettle I 15, the multifunctional dyeing and finishing kettle II 16 and the CO.sub.2 low-temperature storage tank reach a pressure balance, the recovery compressor is started to continue the recovery of the CO.sub.2 gas in the multifunctional dyeing and finishing kettle I 15 and the multifunctional dyeing and finishing kettle II 16. The clean CO.sub.2 gas purified by the adsorber is liquefied by the condenser and then enters the CO.sub.2 low-temperature storage tank, for next dyeing production. After the pressure in the multifunctional dyeing and finishing kettle I 15 and the multifunctional dyeing and finishing kettle II 16 is reduced to 0 MPa, the recovery compressor is shut down to accomplish the recovery process. The multifunctional dyeing and finishing kettle I 15 and the multifunctional dyeing and finishing kettle II 16 are started to obtain the dyed Dacron cheese yarns.

(17) After testing, the Dacron cheese yarns dyed with the disperse orange 30 have a K/S value of 18.2, a standard deviation of the K/S value is less than 0.01, and therefore the Dacron cheese yarns have good leveling property and can meets the requirement of commercial dyeing. In the meantime, the dyed yarns have a color fastness level to washing of 5, a fastness level to dry grinding of 4-5, a fastness level to wet grinding of 4-5 and a color fastness level to sunlight of 6.

Example 3

(18) As shown in FIG. 2, disperse orange 30 is placed in the dye kettle, wherein an amount of the dye accounts for 0.5% by weight of fabrics. 100 kg of acrylic fabrics are wound on the textile dyeing and finishing unit respectively, and the integrated dyeing and finishing system is loaded into the dyeing and finishing kettle by means of a support vehicle. The automatic control system of the dyeing device is started, the multifunctional dyeing and finishing kettle I 15 and the multifunctional dyeing and finishing kettle II 16 are shut down, and a system self-check program is opened to ensure that the kettle body and the electromagnetic valve are located in a correct startup or shutdown state. After the system self-check is normal, the water cooling tower, the water pump and the ethylene glycol pump are started in sequence, and the refrigeration unit and the heating system are then started. CO.sub.2 in the CO.sub.2 supply storage tank flows through the precooler to be condensed and is injected into the dyeing and finishing apparatus by the CO.sub.2 boost pump to complete a pressure boosting process. Liquid CO.sub.2 is heated by the heat exchanger, such that the liquid CO.sub.2 enters a supercritical state. The supercritical CO.sub.2 enters the dye kettle to dissolve the dye, and the supercritical CO.sub.2 fluid carried with the dye enters the multifunctional dyeing and finishing kettle I 15 and the multifunctional dyeing and finishing kettle II 16. After the temperature and pressure reach 100 C. and 22 MPa, the CO.sub.2 boost pump is shut down, and the circulation pump is started to drive supercritical CO.sub.2 fluid to continuously circulate between the dye kettle and the multifunctional dyeing and finishing kettle I 15 and the multifunctional dyeing and finishing kettle II 16, thereby realizing dyeing production of the acrylic cheese yarns. After 30 min of dyeing, 0.1% of anti-ultraviolet finishing agent 2-(2-hydroxyl-3, 5-di-tert-phenyl)-5-chlorobenzotriazole is added into the dye unit of the feeder and then added into the dye kettle. After 30 min of dyeing, the circulation pump is shut down, the valve V14 is opened, CO.sub.2 fluid containing unused dye and finishing agent flows through the cooler first to be cooled to 30 C. and flows through the separation kettle to realize deep separation with the unused dyes and CO.sub.2 gas. The CO.sub.2 gas is purified again in the adsorber to obtain clean CO.sub.2 gas, and the obtained clean CO.sub.2 gas is liquefied by the condenser and then recovered into the CO.sub.2 low-temperature storage tank. After the multifunctional dyeing and finishing kettle I 15, the multifunctional dyeing and finishing kettle II 16 and the CO.sub.2 low-temperature storage tank reach a pressure balance, the recovery compressor is started to continue the recovery of the CO.sub.2 gas in the multifunctional dyeing and finishing kettle I 15 and the multifunctional dyeing and finishing kettle II 16. The clean CO.sub.2 gas purified by the adsorber is liquefied by the condenser and then enters the CO.sub.2 low-temperature storage tank, for next dyeing and finishing production. After the pressure in the multifunctional dyeing and finishing kettle I 15 and the multifunctional dyeing and finishing kettle II 16 is reduced to 0 MPa, the recovery compressor is shut down to accomplish the recovery process. The multifunctional dyeing and finishing kettle I 15 and the multifunctional dyeing and finishing kettle II 16 are started to obtain the dyed Dacron fabrics.

(19) After testing, the acrylic fabrics dyed with the disperse orange 30 have a K/S value of 15.9, a standard deviation of the K/S value is less than 0.02, and therefore the acrylic fabrics have good leveling property and can meet the requirement of commercial dyeing. In the meantime, the dyed yarns have a color fastness level to washing of 5, a fastness level to dry grinding of 4-5, a fastness level to wet grinding of 4-5 and a color fastness level to sunlight of 6. Moreover, the dyed fabrics finished with the anti-ultraviolet finishing agent 2-(2-hydroxy-3, 5-di-tert-phenyl)-5-chlorobenzotriazole have an ultraviolet shielding effect of over 98%.

Example 4

(20) Liquid CO.sub.2 in the CO.sub.2 transport vehicle flows into the CO.sub.2 low-temperature storage tank through the low-temperature transfer pump to perform a CO.sub.2 inflation process. When the liquid level of CO.sub.2 rises to , the inflation process is stopped for use of the dyeing and finishing production. Disperse red 60 is placed in the dye kettle, wherein an amount of the dye accounts for 1% by weight of fabrics. 200 kg of wool fabrics are wound on the textile dyeing and finishing unit respectively, and the integrated dyeing and finishing system is loaded into the dyeing and finishing kettle by means of the support vehicle. The automatic control system of the dyeing device is started, the multifunctional dyeing and finishing kettle I 15 and the multifunctional dyeing and finishing kettle II 16 are shut down, and a system self-check program is opened to ensure that the kettle body and the electromagnetic valve are located in a correct startup or shutdown state. After the system self-check is normal, the water cooling tower, the water pump and the ethylene glycol pump are started in sequence, and the refrigeration unit and the heating system are then started. CO.sub.2 in the CO.sub.2 supply storage tank flows through the precooler to be condensed and is injected into the dyeing and finishing apparatus by the CO.sub.2 boost pump to complete a pressure boosting process. Liquid CO.sub.2 is heated by the heat exchanger, such that the liquid CO.sub.2 enters a supercritical state. The supercritical CO.sub.2 enters the dye kettle to dissolve the dye, and the supercritical CO.sub.2 fluid carried with the dye enters the multifunctional dyeing and finishing kettle I 15 and the multifunctional dyeing and finishing kettle II 16. After the temperature and pressure reach 100 C. and 22 MPa, the CO.sub.2 boost pump is shut down, and a circulation pump is started to drive supercritical CO.sub.2 fluid to continuously circulate between the dye kettle and the multifunctional dyeing and finishing kettle I 15 and the multifunctional dyeing and finishing kettle II 16, thereby realizing dyeing production of the wool fabrics. After 20 min of dyeing, 1% of disperse blue 79 is added into the dye unit of the feeder and then added into the dye kettle. After 40 min of dyeing, the circulation pump is shut down, the valve V14 is opened, CO.sub.2 fluid containing unused dye and finishing agent flows through the cooler first to be cooled to 30 C. and flows through the separation kettle to realize deep separation from the unused dyes and CO.sub.2 gas. The CO.sub.2 gas is purified again in the adsorber to obtain clean CO.sub.2 gas, and the obtained clean CO.sub.2 gas is liquefied by the condenser and then recovered into the CO.sub.2 low-temperature storage tank. After the multifunctional dyeing and finishing kettle I 15, the multifunctional dyeing and finishing kettle II 16 and the CO.sub.2 low-temperature storage tank reach a pressure balance, the recovery compressor is started to continue the recovery of the CO.sub.2 gas in the multifunctional dyeing and finishing kettle I 15 and the multifunctional dyeing and finishing kettle II 16. The clean CO.sub.2 gas purified by the adsorber is liquefied by the condenser and then enters the CO.sub.2 low-temperature storage tank, for next dyeing and finishing production. After the pressure in the multifunctional dyeing and finishing kettle I 15 and the multifunctional dyeing and finishing kettle II 16 is reduced to 0 MPa, the recovery compressor is shut down to accomplish the recovery process. The multifunctional dyeing and finishing kettle I 15 and the multifunctional dyeing and finishing kettle II 16 are started to obtain the dyed wool fabrics.

(21) After testing, the obtained purple wool fabrics have a K/S value of 10.5, a standard deviation of the K/S value is less than 0.01, and therefore the wool fabrics have good leveling property and can meet the requirement of commercial dyeing. In the meantime, the dyed wool fabrics have a color fastness level to washing of 4, a fastness level to dry grinding of 4-5, a fastness level to wet grinding of 4-5 and a color fastness level to sunlight of 6.

Example 5

(22) Liquid CO.sub.2 in the CO.sub.2 transport vehicle flows into the CO.sub.2 low-temperature storage tank through the low-temperature transfer pump to perform a CO.sub.2 inflation process. When the liquid level of CO.sub.2 rises to , the inflation process is stopped for use of the dyeing and finishing production. Disperse red 153 is placed the multifunctional dyeing and finishing kettle I 15 and the multifunctional dyeing and finishing kettle II 16 and the dye units in the multifunctional dyeing and finishing kettle I 15 and the multifunctional dyeing and finishing kettle II 16, wherein an amount of the dye accounts for 2% by weight of fabrics. 100 kg of super-imitative cotton fabrics are wound on the textile dyeing and finishing unit respectively, and the integrated dyeing and finishing system is loaded into the dyeing and finishing kettle by means of the electric hoist. The automatic control system of the dyeing device is started, the multifunctional dyeing and finishing kettle I 15 and the multifunctional dyeing and finishing kettle II 16 are shut down, and a system self-check program is opened to ensure that the kettle body and the electromagnetic valve are located in a correct startup or shutdown state. After the system self-check is normal, the water cooling tower, the water pump and the ethylene glycol pump are started in sequence, and the refrigeration unit and the heating system are then started. The liquid CO.sub.2 in the CO.sub.2 low-temperature storage tank enters the CO.sub.2 supply storage tank first and flows through the precooler to be condensed and is injected into the dyeing and finishing apparatus by the CO.sub.2 boost pump to complete a pressure boosting process. Liquid CO.sub.2 is heated by the heat exchanger, such that the liquid CO.sub.2 enters a supercritical state. After entering the multifunctional dyeing and finishing kettle I 15 and the multifunctional dyeing and finishing kettle II 16, the supercritical CO.sub.2 flows through the dye finishing agent unit in the integrated dyeing and finishing system to dissolve the dye and then enters the textile dyeing and finishing unit to dye the Dacron fabrics. After the temperature and pressure reach 130 C. and 26 MPa, the CO.sub.2 boost pump is shut down. An electromotor connected with the multifunctional dyeing and finishing kettles is started, such that an outer magnetic lining sleeving the kettle body rotates to drive the magnetic rotator provided in the integrated dyeing and finishing system to move, and therefore, the integrated dyeing and finishing system rotates forwards for 30 min at a speed of 100 r/min and then rotates reversely for 30 min at a speed of 100 r/min, to complete the dyeing of the Dacron super-imitative cotton fabrics with the dye.

(23) After the dyeing and finishing process is completed, the valve V14 is opened, CO.sub.2 fluid containing unused dye flows through the cooler first to be cooled to 30 C. and flows through the separation kettle to realize deep separation from the unused dyes and CO.sub.2 gas. The CO.sub.2 gas is purified again in the adsorber to obtain clean CO.sub.2 gas, and the obtained clean CO.sub.2 gas is liquefied by the condenser and then recovered into the CO.sub.2 low-temperature storage tank, for next dyeing production. After the multifunctional dyeing and finishing kettle I 15, the multifunctional dyeing and finishing kettle II 16 and the CO.sub.2 low-temperature storage tank reach a pressure balance, the recovery compressor is started to continue the recovery of the CO.sub.2 gas in the multifunctional dyeing and finishing kettle I 15 and the multifunctional dyeing and finishing kettle II 16. The clean CO.sub.2 gas purified by the adsorber is liquefied by the condenser and then enters the CO.sub.2 low-temperature storage tank. After the pressure in the multifunctional dyeing and finishing kettle I 15 and the multifunctional dyeing and finishing kettle II 16 is reduced to 0 MPa, the recovery compressor is shut down. The multifunctional dyeing and finishing kettle I 15 and the multifunctional dyeing and finishing kettle II 16 are started to obtain the dyed super-imitative cotton fabrics.

(24) After testing, the dyed super-imitative cotton fabrics have a K/S value of 23.3, a standard deviation of the K/S value is less than 0.01, a standard deviation of a K/S value between the multifunctional dyeing and finishing kettle I 15 and the multifunctional dyeing and finishing kettle II 16 is less than 0.01 at the same time, and therefore the dyed super-imitative cotton fabrics have good leveling property and can meet the requirement of commercial dyeing. In the meantime, the dyed Dacron fabrics have a color fastness level to washing of 5, a fastness level to dry grinding of 5, a fastness level to wet grinding of 5 and a color fastness level to sunlight of 6.

Example 6

(25) Disperse red 60 and disperse yellow 114 are placed the dye kettle in a ratio of 1:1, wherein an amount of the dyes accounts for 1% by weight of fabrics. 100 kg of super-imitative cotton fibers are placed on the textile dyeing and finishing unit, and the integrated dyeing and finishing system is loaded into the dyeing and finishing kettle by means of the support vehicle. The automatic control system of the dyeing device is started, the multifunctional dyeing and finishing kettle I 15 and the multifunctional dyeing and finishing kettle II 16 are shut down, and a system self-check program is opened to ensure that the kettle body and the electromagnetic valve are located in a correct startup or shutdown state. After the system self-check is normal, the water cooling tower, the water pump and the ethylene glycol pump are started in sequence, and the refrigeration unit and the heating system are then started. CO.sub.2 in the CO.sub.2 supply storage tank flows through the precooler to be condensed and is injected into the dyeing and finishing apparatus by the CO.sub.2 boost pump to complete a pressure boosting process. Liquid CO.sub.2 is heated by the heat exchanger, such that the liquid CO.sub.2 enters a supercritical state. The supercritical CO.sub.2 enters the dye kettle to dissolve the dyes. Then, the supercritical CO.sub.2 fluid carried with the dyes enters the multifunctional dyeing and finishing kettle I 15 and the multifunctional dyeing and finishing kettle II 16. After the temperature and pressure reach 120 C. and 25 MPa, the CO.sub.2 boost pump is shut down, and the circulation pump is started to drive supercritical CO.sub.2 fluid to continuously circulate between the dye kettle and the multifunctional dyeing and finishing kettle I 15 and the multifunctional dyeing and finishing kettle II 16, thereby realizing dyeing production of the super-imitative cotton fibers. After 30 min of dyeing, 2% of polyethylene glycol diethylenetriamine is added into the dye unit of the feeder and then added into the dye kettle. The on-line monitoring system is started to monitor and determine a dissolution condition of the polyethylene glycol diethylenetriamine. After 60 min of dyeing, the circulation pump is shut down, the valve V14 is opened, CO.sub.2 fluid containing unused dye and finishing agent flows through the cooler first to be cooled to 30 C. and flows through the separation kettle to realize deep separation from the unused dyes and CO.sub.2 gas. The CO.sub.2 gas is purified again in the adsorber to obtain clean CO.sub.2 gas, and the obtained clean CO.sub.2 gas is liquefied by the condenser and then recovered into the CO.sub.2 low-temperature storage tank. After the multifunctional dyeing and finishing kettle I 15, the multifunctional dyeing and finishing kettle II 16 and the CO.sub.2 low-temperature storage tank reach a pressure balance, the recovery compressor is started to continue the recovery of the CO.sub.2 gas in the multifunctional dyeing and finishing kettle I 15 and the multifunctional dyeing and finishing kettle II 16. The clean CO.sub.2 gas purified by the adsorber is liquefied by the condenser and then enters the CO.sub.2 low-temperature storage tank, for next dyeing and finishing production. After the pressure in the multifunctional dyeing and finishing kettle I 15 and the multifunctional dyeing and finishing kettle II 16 is reduced to 0 MPa, the recovery compressor is shut down to accomplish the recovery process. The multifunctional dyeing and finishing kettle I 15 and the multifunctional dyeing and finishing kettle II 16 are started to obtain the dyed super-imitative cotton fibers.

(26) After testing, the dyed orange super-imitative cotton fibers have a dyeing K/S value of 15.2, a standard deviation of a K/S value between the multifunctional dyeing and finishing kettle I 15 and the multifunctional dyeing and finishing kettle II 16 is less than 0.02, and therefore the dyed orange super-imitative cotton fibers have good leveling property and can meet the requirement of commercial dyeing. In the meantime, the dyed super-imitative cotton fibers have a color fastness level to washing of 5, a fastness level to dry grinding of 5, a fastness level to wet grinding of 5 and a color fastness level to sunlight of 6. In addition, the surface resistivity of the dyed fibers finished with the polyethylene glycol diethylenetriamine drops to 10.sup.10 or less, and the half-life period is less than 10 s.

Example 7

(27) Liquid CO.sub.2 in the CO.sub.2 transport vehicle flows into the CO.sub.2 low-temperature storage tank through the low-temperature transfer pump to perform a CO.sub.2 inflation process. When the liquid level of CO.sub.2 rises to , the inflation process is stopped for use of the dyeing and finishing production. Polyethylene glycol diethylenetriamine is placed in the dye kettle, wherein an amount of the polyethylene glycol diethylenetriamine accounts for 2% by weight of fabrics. 100 kg of Dacron fabrics are placed on the textile dyeing and finishing unit, and the integrated dyeing and finishing system is loaded into the dyeing and finishing kettle by means of the support vehicle. The automatic control system of the dyeing device is started, the multifunctional dyeing and finishing kettle I 15 and the multifunctional dyeing and finishing kettle II 16 are shut down, and a system self-check program is opened to ensure that the kettle body and the electromagnetic valve are located in a correct startup or shutdown state. After the system self-check is normal, the water cooling tower, the water pump and the ethylene glycol pump are started in sequence, and the refrigeration unit and the heating system are then started. CO.sub.2 in the CO.sub.2 supply storage tank flows through the precooler to be condensed and is injected into the dyeing and finishing apparatus by the CO.sub.2 boost pump to complete a pressure boosting process. Liquid CO.sub.2 is heated by the heat exchanger, such that the liquid CO.sub.2 enters a supercritical state. The supercritical CO.sub.2 enters the dye kettle to dissolve the dye, and the supercritical CO.sub.2 fluid carried with the dye enters the multifunctional dyeing and finishing kettle I 15 and the multifunctional dyeing and finishing kettle II 16. After the temperature and pressure reach 140 C. and 25 MPa, the CO.sub.2 boost pump is shut down, and the circulation pump is started to drive supercritical CO.sub.2 fluid to continuously circulate between the dye kettle and the multifunctional dyeing and finishing kettle I 15 and the multifunctional dyeing and finishing kettle II 16, thereby realizing finishing production of the Dacron fabrics. After 60 min of finishing, the circulation pump is shut down and the valve V14 is opened. CO.sub.2 fluid containing unused finishing agent flows through the cooler first to be cooled to 30 C. and flows through the separation kettle to realize deep separation from the unused finishing agent and CO.sub.2 gas. The CO.sub.2 gas is purified again in the adsorber to obtain clean CO.sub.2 gas, and the obtained clean CO.sub.2 gas is liquefied by the condenser and then recovered into the CO.sub.2 low-temperature storage tank. After the multifunctional dyeing and finishing kettle I 15, the multifunctional dyeing and finishing kettle II 16 and the CO.sub.2 low-temperature storage tank reach a pressure balance, the recovery compressor is started to continue the recovery of the CO.sub.2 gas in the multifunctional dyeing and finishing kettle I 15 and the multifunctional dyeing and finishing kettle II 16. The clean CO.sub.2 gas purified by the adsorber is liquefied by the condenser and then enters the CO.sub.2 low-temperature storage tank, for next dyeing and finishing production. After the pressure in the multifunctional dyeing and finishing kettle I 15 and the multifunctional dyeing and finishing kettle II 16 is reduced to 0 MPa, the recovery compressor is shut down to accomplish the recovery process. The multifunctional dyeing and finishing kettle I 15 and the multifunctional dyeing and finishing kettle II 16 are started to obtain the Dacron fabrics with an anti-static effect.

(28) After testing, the surface resistance of the Dacron fabrics finished with the polyethylene glycol diethylenetriamine drops to 10.sup.10 or less, and the half-life period is less than 10 s. In the meantime, a standard deviation of the half-life period of the Dacron fabrics and a standard deviation of a half-life period between the multifunctional dyeing and finishing kettle I 15 and the multifunctional dyeing and finishing kettle II 16 are less than 0.02 respectively, and therefore the Dacron fabrics can meet the requirement of commercial dyeing.

Example 8

(29) Liquid CO.sub.2 in the CO.sub.2 transport vehicle flows into the CO.sub.2 low-temperature storage tank through the low-temperature transfer pump to perform a CO.sub.2 inflation process. When the liquid level of CO.sub.2 rises to , the inflation process is stopped for use of the dyeing and finishing production. FRC-1 is placed in a finishing agent unit in the integrated dyeing and finishing system in the multifunctional dyeing and finishing kettle I 15 and the multifunctional dyeing and finishing kettle II 16, wherein an amount of the FRC-1 accounts for 2%. Chitosan is placed in the finishing agent unit in the integrated dyeing and finishing system in the multifunctional dyeing and finishing kettle I 15 and the multifunctional dyeing and finishing kettle II 16, wherein an amount of the chitosan accounts for 5% by weight of fabrics. 80 kg of cotton fabrics are placed on the textile dyeing and finishing unit, and the integrated dyeing and finishing system is loaded into the dyeing and finishing kettle by means of the support vehicle. The automatic control system of the dyeing device is started, the multifunctional dyeing and finishing kettle I 15 and the multifunctional dyeing and finishing kettle II 16 are shut down, and a system self-check program is opened to ensure that the kettle body and the electromagnetic valve are located in a correct startup or shutdown state. After the system self-check is normal, the water cooling tower, the water pump and the ethylene glycol pump are started in sequence, and the refrigeration unit and the heating system are then started. CO.sub.2 in the CO.sub.2 supply storage tank flows through the precooler to be condensed and is injected into the dyeing and finishing apparatus by the CO.sub.2 boost pump to complete a pressure boosting process. Liquid CO.sub.2 is heated by the heat exchanger, such that the Liquid CO.sub.2 enters a supercritical state. After entering the multifunctional dyeing and finishing kettle I 15 and the multifunctional dyeing and finishing kettle II 16, the supercritical CO.sub.2 flows through the dye finishing agent unit in the integrated dyeing and finishing system to dissolve the finishing agent and then enters the textile dyeing and finishing unit to finish the cotton fabrics. After the temperature and pressure reach 120 C. and 26 MPa, the CO.sub.2 boost pump is shut down. An electromotor connected with the multifunctional dyeing and finishing kettles is started, such that an outer magnetic lining sleeving the kettle body rotates to drive the magnetic rotator provided in the integrated dyeing and finishing system to move, and therefore, the integrated dyeing and finishing system rotates forwards for 30 min at a speed of 50 r/min and then rotates reversely for 30 min at a speed of 50 r/min, to complete the finishing process of the Dacron fabrics.

(30) After 60 min of finishing, the circulation pump is shut down and the valve V14 is opened. CO.sub.2 fluid containing unused finishing agent flows through the cooler first to be cooled to 30 C. and flows through the separation kettle to realize deep separation from the unused finishing agent and CO.sub.2 gas. The CO.sub.2 gas enters a dehydration kettle I and a dehydration kettle II to remove water in the fabrics and the CO.sub.2 gas. Later, the CO.sub.2 gas is purified again in the adsorber to obtain clean CO.sub.2 gas, and the obtained clean CO.sub.2 gas is liquefied by the condenser and then recovered into the CO.sub.2 low-temperature storage tank. After the multifunctional dyeing and finishing kettle I 15, the multifunctional dyeing and finishing kettle II 16 and the CO.sub.2 low-temperature storage tank reach a pressure balance, the recovery compressor is started to continue the recovery of the CO.sub.2 gas in the multifunctional dyeing and finishing kettle I 15 and the multifunctional dyeing and finishing kettle II 16. The clean CO.sub.2 gas purified by the adsorber is liquefied by the condenser and then enters the CO.sub.2 low-temperature storage tank, for next dyeing and finishing production. After the pressure in the multifunctional dyeing and finishing kettle I 15 and the multifunctional dyeing and finishing kettle II 16 is reduced to 0 MPa, the recovery compressor is shut down to accomplish the recovery process. The multifunctional dyeing and finishing kettle I 15 and the multifunctional dyeing and finishing kettle II 16 are started to obtain the cotton fabrics with flame retardant and antibacterial effects.

(31) After testing, the cotton fabrics finished with the FRC-1 have a good flame retardant effect, the after flame time of Os, the smoldering time of Os, and the damage length of 77 mm. At the same time, the cotton fabrics finished with the chitosan have a good antibacterial capability against Staphylococcus aureus and Escherichia coli, with an antibacterial rate of zero. In addition, the recovery of the cotton fabrics is significantly improved.