CN113718455A - Dyeing method of multi-fluid medium - Google Patents
Dyeing method of multi-fluid medium Download PDFInfo
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- CN113718455A CN113718455A CN202111016323.6A CN202111016323A CN113718455A CN 113718455 A CN113718455 A CN 113718455A CN 202111016323 A CN202111016323 A CN 202111016323A CN 113718455 A CN113718455 A CN 113718455A
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- 239000004753 textile Substances 0.000 claims abstract description 44
- 239000004744 fabric Substances 0.000 claims abstract description 11
- 230000000087 stabilizing effect Effects 0.000 claims description 17
- 238000012546 transfer Methods 0.000 claims description 12
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 claims description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 6
- 229920000191 poly(N-vinyl pyrrolidone) Polymers 0.000 claims description 5
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 claims description 4
- 239000002253 acid Substances 0.000 claims description 4
- 239000008367 deionised water Substances 0.000 claims description 4
- 229910021641 deionized water Inorganic materials 0.000 claims description 4
- 239000000203 mixture Substances 0.000 claims description 4
- BNIILDVGGAEEIG-UHFFFAOYSA-L disodium hydrogen phosphate Chemical compound [Na+].[Na+].OP([O-])([O-])=O BNIILDVGGAEEIG-UHFFFAOYSA-L 0.000 claims description 3
- 229910017053 inorganic salt Inorganic materials 0.000 claims description 3
- 239000004094 surface-active agent Substances 0.000 claims description 3
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- KEQXNNJHMWSZHK-UHFFFAOYSA-L 1,3,2,4$l^{2}-dioxathiaplumbetane 2,2-dioxide Chemical compound [Pb+2].[O-]S([O-])(=O)=O KEQXNNJHMWSZHK-UHFFFAOYSA-L 0.000 description 1
- QTBSBXVTEAMEQO-UHFFFAOYSA-M Acetate Chemical compound CC([O-])=O QTBSBXVTEAMEQO-UHFFFAOYSA-M 0.000 description 1
- 229920002972 Acrylic fiber Polymers 0.000 description 1
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Images
Classifications
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06B—TREATING TEXTILE MATERIALS USING LIQUIDS, GASES OR VAPOURS
- D06B3/00—Passing of textile materials through liquids, gases or vapours to effect treatment, e.g. washing, dyeing, bleaching, sizing, impregnating
- D06B3/10—Passing of textile materials through liquids, gases or vapours to effect treatment, e.g. washing, dyeing, bleaching, sizing, impregnating of fabrics
- D06B3/20—Passing of textile materials through liquids, gases or vapours to effect treatment, e.g. washing, dyeing, bleaching, sizing, impregnating of fabrics with means to improve the circulation of the treating material on the surface of the fabric
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06B—TREATING TEXTILE MATERIALS USING LIQUIDS, GASES OR VAPOURS
- D06B23/00—Component parts, details, or accessories of apparatus or machines, specially adapted for the treating of textile materials, not restricted to a particular kind of apparatus, provided for in groups D06B1/00 - D06B21/00
- D06B23/04—Carriers or supports for textile materials to be treated
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06B—TREATING TEXTILE MATERIALS USING LIQUIDS, GASES OR VAPOURS
- D06B23/00—Component parts, details, or accessories of apparatus or machines, specially adapted for the treating of textile materials, not restricted to a particular kind of apparatus, provided for in groups D06B1/00 - D06B21/00
- D06B23/20—Arrangements of apparatus for treating processing-liquids, -gases or -vapours, e.g. purification, filtration or distillation
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06B—TREATING TEXTILE MATERIALS USING LIQUIDS, GASES OR VAPOURS
- D06B23/00—Component parts, details, or accessories of apparatus or machines, specially adapted for the treating of textile materials, not restricted to a particular kind of apparatus, provided for in groups D06B1/00 - D06B21/00
- D06B23/20—Arrangements of apparatus for treating processing-liquids, -gases or -vapours, e.g. purification, filtration or distillation
- D06B23/22—Arrangements of apparatus for treating processing-liquids, -gases or -vapours, e.g. purification, filtration or distillation for heating
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Treatment Of Fiber Materials (AREA)
- Coloring (AREA)
Abstract
The invention relates to a dyeing method of a multi-fluid medium, which comprises the following steps: s1: placing the dyeing liquid in a liquid storage tank; s2: placing the textile fabric in a dyeing tube; s3: preheating the dyeing liquid to a first preset temperature through a heater, starting the centrifugal pump and adjusting the opening of the proportional valve so as to dye the textile through the dyeing liquid; s4: adjusting the opening of the proportional valve and preserving heat for a certain time; s5: turning off the heater and adjusting the opening of the proportional valve; s6: when the temperature of the dyeing liquid is reduced to a third preset temperature, suspending the centrifugal pump; s7: the textile is washed and dried. According to the dyeing method of the multi-flow medium, the flow rate is regulated and controlled by adjusting the opening degree of the proportional valve, the textile is treated under the conditions of different Reynolds numbers, namely the textile is treated under different flow states and is dyed, and the dyeing precision can be improved.
Description
Technical Field
The invention relates to the technical field of fluid dyeing, in particular to a dyeing method of a multi-fluid medium.
Background
In the textile dyeing process, the flow state of the dye liquor fluid and the difference of the Reynolds numbers when the dye liquor fluid flows often cause the complete difference of the motion modes and the motion rates of dye particles in the dye liquor fluid, and simultaneously cause the difference of the thickness of a boundary layer on the surface of a fiber, thereby generating obvious difference on the diffusion rates when the dye particles adsorb the dyed fiber, obviously influencing the dyeing kinetic parameters such as the diffusion coefficient and the like in the process of adsorbing the dyed fiber by the dye, and influencing the dyeing performance of the textile.
In the textile dyeing process, when dye liquor fluid flows in different flow states in a round tube, the motion states of solute molecules or ions in the dye liquor fluid are completely different, so that the diffusion rate of dye particles and the mode of interaction with the surface of a fiber are different; when the dye liquor fluid is laminar flow, dye ions do parallel linear motion along the axis of the circular tube, the dye ions between adjacent flow layers have no mass transfer, and only the dye ions in the acting force range between the textile and the dye ions can be adsorbed by the surface of the textile; along with the increase of the Reynolds number of the dye liquor fluid, namely the flow velocity, the movement of the dye ions is gradually disturbed, the mass transfer of the dye ions between adjacent flow layers exists, the diffusion boundary layer between the fabric and the dye liquor becomes thin, the dye molecules can dye the fiber more easily, and along with the increase of the flow velocity, the diffusion and transfer speeds of the dye particles in the dye liquor fluid are increased, so that the diffusion of the dye particles to the fiber is easy; when the Reynolds number is too large, namely the flow velocity is too large, the mass transfer exchange time between dye particles transferred in the dye solution body and a fiber diffusion boundary layer is easy to be insufficient; therefore, the flow state of the dye liquor fluid and the Reynolds number of the dye liquor fluid during flowing have great influence on the process of dye particle adsorption on dyed textiles.
However, in the conventional textile dyeing and finishing process, the dyeing machine includes an overflow dyeing machine, a jet dyeing machine, an airflow dyeing machine, and the like, and in the textile dyeing process, the flow state of the dyeing liquid in the dyeing machine is not changed, so that the flow state of the dyeing liquid is not controllable, and thus, the difference exists between the motion mode and the motion rate of the dye particles and the thickness of the boundary layer on the surface of the fiber in different dye vats, even in the same dye vat in different time periods, and the obvious difference exists between the diffusion rate and the diffusion process in the process of adsorbing and dyeing the fiber by the dye particles, so that the dyeing problems such as vat difference, head-to-tail color difference and the like of the color after the textile dyeing are often easily caused.
Disclosure of Invention
Therefore, the technical problem to be solved by the invention is to overcome the problems that in the prior art, a single fluid dyeing fluid is often adopted for dyeing, so that the dye in a dye bath is easy to dissolve, diffuse, move and distribute unevenly, and the dyeing problems of cylinder difference, head-tail color difference and the like of the color of the textile after dyeing are caused, and provide a multi-fluid medium dyeing method with small dyeing color difference.
In order to solve the technical problem, the invention provides a dyeing method of a multi-fluid medium, which comprises the following steps:
s1: placing the dyeing liquid in a liquid storage tank;
s2: placing the textile fabric in a dyeing tube;
s3: preheating the dyeing liquid to a first preset temperature through a heater, starting a centrifugal pump, adjusting the opening of a proportional valve, and changing the flow state of the dyeing liquid in the dyeing pipe into any one of laminar flow, transitional flow or turbulent flow so as to dye textiles through the dyeing liquid;
s4: after the dyeing liquid is heated to a second preset temperature, adjusting the opening of the proportional valve and preserving heat for a certain time;
s5: turning off the heater and adjusting the opening of the proportional valve;
s6: when the temperature of the dyeing liquid is reduced to a third preset temperature, suspending the centrifugal pump, emptying the dyeing liquid in the dyeing pipe, and taking out the textile;
s7: the textile is washed and dried.
As a further improvement of the present invention, in S2:
set up the holder in the dyeing pipe, the holder includes circular arc section and horizontal segment, the fabric is placed on the circular arc section, the circular arc section passes through the horizontal segment and is connected with the inner wall of dyeing pipe.
As a further improvement of the present invention, in S2:
the textile is pushed through the transfer member.
As a further improvement of the invention, a thermometer and a pH meter are arranged in the pressure stabilizing tank to respectively measure the temperature and the pH value of the liquid, and a flow meter is arranged between the proportional valve and the centrifugal pump to measure the flow rate of the liquid.
As a further improvement of the present invention, the first preset temperature, the second preset temperature and the third preset temperature range from 0 to 180 ℃.
As a further improvement of the present invention, the proportional valve is one of an electromagnetic proportional valve, an electric proportional valve, and an electrohydraulic proportional valve.
As a further improvement of the invention, the dyeing liquid comprises dye, acid, alkali, inorganic salt and surfactant.
As a further improvement of the invention, the dyeing solution is prepared by the following steps:
10.0g of dye is dissolved in 200L of deionized water, then anhydrous sodium sulfate with the concentration of 5g/L and peregal O with the concentration of 0.2g/L are added, the mixture is stirred evenly until the mixture is completely dissolved, and then citric acid and disodium hydrogen phosphate are added to adjust the pH value of the solution to 5.
As a further improvement of the present invention, the staining solution forms a first circulating body and a second circulating body.
As a further improvement of the invention, the first circulating body comprises a liquid storage tank, a centrifugal pump and a pressure stabilizing box, and the second circulating body comprises a liquid storage tank, a centrifugal pump, a pressure stabilizing box and a dyeing tube.
Compared with the prior art, the technical scheme of the invention has the following advantages:
according to the dyeing method of the multi-flow medium, the flow rate is regulated and controlled by adjusting the opening degree of the proportional valve, the textile is treated under the conditions of different Reynolds numbers, namely the textile is treated under different flow states and is dyed, and the dyeing precision can be improved.
Drawings
In order that the present disclosure may be more readily and clearly understood, reference is now made to the following detailed description of the present disclosure taken in conjunction with the accompanying drawings, in which:
FIG. 1 is a schematic flow diagram of a method for dyeing a multi-fluid medium in a preferred embodiment of the present invention;
FIG. 2 is a schematic structural view of a preferred embodiment of the present invention;
FIG. 3 is a schematic view of the connection structure of the dyeing tube, the holder and the textile in the preferred embodiment of the present invention.
The specification reference numbers indicate: 1. a liquid storage tank; 2. a heater; 3. dyeing a tube; 4. a proportional valve; 5. a flow meter; 6. a voltage stabilizing box; 7. a centrifugal pump; 8. an overflow plate; 9. an overflow pipe; 10. a thermometer; 11. a pH meter; 12. a clamper.
Detailed Description
The present invention is further described below in conjunction with the following figures and specific examples so that those skilled in the art may better understand the present invention and practice it, but the examples are not intended to limit the present invention.
It will be understood that when an element is referred to as being "disposed on," "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "secured" to, or "fixedly coupled" to another element, it can be removably secured or non-removably secured to the other element. When an element is referred to as being "connected," "pivotally connected," to another element, it can be directly connected to the other element or intervening elements may also be present. The use of the terms "vertical," "horizontal," "left," "right," "up," "down," and the like are for illustrative purposes only and do not denote a single embodiment.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
The terms "first," "second," "third," and the like in the description herein do not denote any particular quantity or order, but rather are used to distinguish one element from another.
In some embodiments, referring to fig. 1-2, a method of dyeing with a multi-fluid medium, comprising the steps of:
s1: placing the dyeing liquid in a liquid storage tank 1;
in one embodiment, the dyeing solution comprises a dye, an acid, an alkali, an inorganic salt and a surfactant, and is used as an auxiliary agent and a solvent;
preferably, the dyeing liquid is prepared by the following steps:
dissolving 10.0g of dye in 200L of deionized water, then adding 5g/L anhydrous sodium sulfate and 0.2g/L peregal O, stirring uniformly until the anhydrous sodium sulfate and the peregal O are completely dissolved, and then adding citric acid and disodium hydrogen phosphate to adjust the pH value of the solution to 5;
wherein, peregal O is a non-ionic surfactant, the main component is polyoxyethylene fatty alcohol ether, which is milk white or cream yellow soft paste, can be frozen when meeting cold, is easy to dissolve in water, does not change in hard water, acid liquor or alkali liquor, and is very stable.
S2: placing the textile fabric in the dyeing tube 3;
in one embodiment, referring to fig. 3, in S2: a clamp 12 is arranged in the dyeing tube 3, the clamp 12 comprises an arc section and a horizontal section, the textile is placed on the arc section, the arc section is connected with the inner wall of the dyeing tube 3 through the horizontal section, and the radian of the textile is consistent with that of the arc section, so that the textile is prevented from deforming due to the flow of fluid;
in another embodiment, in S2: pushing the textile fabric through the transfer member; the transmission piece can be a cloth guide roller or any structure capable of pushing textile;
in another embodiment, in S2: the textile is transferred by the pushing action of the dyeing fluid.
S3: preheating the dyeing liquid to a first preset temperature through a heater 2, starting a centrifugal pump 7, adjusting the opening of a proportional valve 4, and changing the flow state of the dyeing liquid in a dyeing tube into any one of laminar flow, transitional flow or turbulent flow so as to dye textiles through the dyeing liquid;
the flow form of the fluid can be divided into three flow forms of laminar flow, transition flow and turbulent flow according to the Reynolds number, during laminar flow, the influence of viscous force on a flow field is greater than inertia force, the viscous force is dominant, disturbance of flow velocity in the flow field is attenuated under the action of the viscous force, the fluid flow is stable, fluid micelles perform smooth linear motion along the direction parallel to a pipe shaft, the track of the fluid micelles has no obvious irregular pulsation, only momentum transfer caused by molecular thermal motion exists between adjacent fluid layers but no mass transfer exists, the flow velocity of the fluid is distributed in a parabola shape, the fluid is maximum at the center of the pipe, and the fluid is minimum at the position close to the wall; during turbulent flow, the influence of inertia force on a flow field is greater than that of viscosity force, the inertia force has a dominant effect, the micro-cluster not only has transverse pulsation, but also has reverse motion relative to the total motion of fluid, so that the track of the fluid micro-cluster is extremely disordered and changes rapidly along with time, so that the fluid flow is unstable, the tiny change of the flow velocity is easy to develop and enhance, a disordered and irregular turbulent flow field is formed, the momentum transfer caused by the random motion is existed between adjacent fluid layers, the heat and mass transfer is also realized, and the transfer rate is higher than that of laminar flow by several orders of magnitude; the transition flow is a flow state between laminar flow and turbulent flow, and the motion condition of fluid micro-clusters is more complicated;
in addition, the temperature range of the first preset temperature is 0-180 ℃, wherein the first preset temperature is preferably 40 ℃;
preferably, the proportional valve 4 is one of an electromagnetic proportional valve, an electric proportional valve and an electrohydraulic proportional valve; the electromagnetic proportional valve is a proportional valve which adopts a proportional electromagnet as an electrical-mechanical conversion element, and the proportional electromagnet converts an input current signal into a force and displacement mechanical signal to be output so as to control parameters such as pressure, flow and direction; the electric proportional valve adopts a direct current servo motor as an electric-mechanical conversion element, the direct current servo motor converts an input electric signal into a rotary motion rotating speed, and then the rotary motion rotating speed outputs force and displacement through a screw rod nut, a gear rack or a gear cam and other speed reducing devices and conversion mechanisms to further control hydraulic parameters; the electro-hydraulic proportional valve is a proportional valve which adopts a structure of a torque motor and a nozzle baffle as a pilot control level, inputs different electric signals to the torque motor, outputs displacement or angular displacement through the baffle connected with the torque motor, changes the distance between the baffle and the nozzle, changes the flow resistance of oil sprayed by the nozzle, and further controls the small parameter.
S4: after the dyeing liquid is heated to a second preset temperature, adjusting the opening of the proportional valve 4 and preserving the temperature for a certain time;
the temperature range of the second preset temperature is 0-180 ℃, wherein the second preset temperature is preferably 70 ℃, and after the temperature of the dyeing solution is raised to 70 ℃, the opening of the proportional valve 4 is adjusted to keep the reynolds number at 1750, and the temperature is kept for 30 minutes;
s5: the heater 2 is closed, and the opening degree of the proportional valve 4 is adjusted to keep the Reynolds number at about 3000;
s6: when the temperature of the dyeing liquid is reduced to a third preset temperature, suspending the centrifugal pump 7, emptying the dyeing liquid in the dyeing pipe 3, and taking out the textile;
it should be noted that the third preset temperature is in a range of 0-180 degrees celsius, wherein the third preset temperature is preferably 50 degrees celsius, and when the temperature of the staining solution is reduced to 50 degrees celsius, the opening degree of the proportional valve 4 is adjusted to be maximum, so as to quickly empty the staining solution in the staining tube 3.
S7: cleaning the textile and drying the textile;
wherein, can use arbitrary clean water during the washing, and the dyeing in-process preferred deionized water that uses to avoid the metal ion content in aqueous too high to influence the dyeing process.
In some embodiments, referring to figure 1, a thermometer 10 and a pH meter 11 are provided in the surge tank 6 to measure the temperature and pH of the liquid, respectively, and a flow meter 5 is provided between the proportional valve 4 and the centrifugal pump 7 to measure the flow rate of the liquid.
In some embodiments, referring to fig. 2, the staining solution forms a first circulation body and a second circulation body. The dyeing liquid is divided into two different circulating bodies, and the purpose can be achieved by arranging an overflow plate 8 in the pressure stabilizing box.
In one embodiment, referring to fig. 2, the first circulation body comprises a liquid storage tank 1, a centrifugal pump 7 and a pressure stabilizing box 6, and the second circulation body comprises the liquid storage tank 1, the centrifugal pump 7, the pressure stabilizing box 6 and a dyeing pipe 3. When overflow is formed in the pressure stabilizing box 6, the overflowing dyeing liquid flows into the liquid storage tank 1 and flows back into the pressure stabilizing box 6 through the centrifugal pump 7 to form a first circulating body; the rest dyeing liquid flows into the dyeing pipe 3 from the pressure stabilizing box 6 and flows back into the pressure stabilizing box 6 under the action of the centrifugal pump 7 to form a second circulating body.
In some embodiments, in S7: and (5) carrying out color characteristic test on the dried textile.
In this example, an annosaitt yellow G dye was used to dye silk fabrics, the Datacolor600 type spectrocolorimeter was used to measure the surface color depth K/S and chromaticity index of the treated silk fabrics, and during the test, D was selected65Light source, 10 degree visual angle, USAV hole, each sample is randomly tested for 12 points, and finally the maximum absorption wavelength lambda of the tested sample is calculatedmaxArithmetic mean of surface color depth values
the level-dyeing property of the textile is characterized by that the measured sample is marked by surface colour depth value at maximum absorption wavelengthThe standard deviation calculation formula of the surface color depth value of the measured sample at the maximum absorption wavelength is as follows:
wherein i represents the ith test point, i belongs to [1, n ]]，
Represents the surface color depth value of the ith test point at the maximum absorption wavelength,
represents the arithmetic mean of the surface color depth values at the wavelength of maximum absorption for the n test points.
TABLE 1.1 determination of the color characteristic values and levelling evaluation of the samples
According to table 1.1, the Annoset yellow G is used as the dye, good dyeing effect can be obtained on the textile under laminar flow, the hue angle h of the sample is 84.2, the yellow color light is pure, and the color is bright. At the same time, its surface color depth value
6.947, namely good dyeing property, and small standard deviation of the color depth value of the sample surface, wherein the sigma of the standard deviation isK/S(λmax)0.130, i.e., the leveling property of the sample is good.
In another embodiment, in S7: and (5) carrying out a fastness test on the dried textile.
TABLE 1.2 evaluation of the fastness to washing of the samples
According to the table 1.2, the color fastness of the sample is good, the fading grade is 4 grades, and the staining fastness can reach 5 grades when the sample is applied to acrylic fibers, polyester fibers, nylon, cotton, acetate and wool.
Referring to fig. 1-3, the working principle of the present invention is as follows:
placing the dyeing liquid into a liquid storage tank 1, starting a centrifugal pump 7 to pump the dyeing liquid into a pressure stabilizing box 6, and after the liquid level in the pressure stabilizing box 6 is higher than an overflow plate 8 to form overflow, the dyeing liquid flows into the liquid storage tank 1 from the pressure stabilizing box 6 through an overflow pipe 9, and the dyeing liquid integrally forms a first circulating body; on the other hand, the opening of the proportional valve 6 is adjusted to be maximum, the air in the dyeing tube 3 is exhausted, after the air in the dyeing tube 3 is exhausted, the flow rate of the dyeing liquid fluid medium in the dyeing tube 3 is maximum at the moment, the flow rate, the pH value and the temperature of the dyeing liquid fluid medium at the moment are recorded, and the Reynolds number and the fluid form of the dyeing liquid fluid medium at the flow rate are obtained through calculation; the opening of the proportional valve 6 is adjusted from large to small, the corresponding relation between the Reynolds number of the dyeing liquid fluid medium in different flow states and the fluid form and the flow rate is calculated, and the fluctuation rule of the pH value and the temperature of the dyeing liquid fluid under the change of the flow rate is calculated, so that the mechanical property, the physicochemical property and the change rule of the dyeing liquid fluid medium in the dyeing pipe 3 in the process of dyeing textiles are obtained, and the cycle is the second cycle body.
It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications of the invention may be made without departing from the spirit or scope of the invention.
Claims (10)
1. A method of dyeing a multi-fluid medium, comprising the steps of:
s1: placing the dyeing liquid in a liquid storage tank;
s2: placing the textile fabric in a dyeing tube;
s3: preheating the dyeing liquid to a first preset temperature through a heater, starting a centrifugal pump, adjusting the opening of a proportional valve, and changing the flow state of the dyeing liquid in the dyeing pipe into any one of laminar flow, transitional flow or turbulent flow so as to dye textiles through the dyeing liquid;
s4: after the dyeing liquid is heated to a second preset temperature, adjusting the opening of the proportional valve and preserving heat for a certain time;
s5: turning off the heater and adjusting the opening of the proportional valve;
s6: when the temperature of the dyeing liquid is reduced to a third preset temperature, suspending the centrifugal pump, emptying the dyeing liquid in the dyeing pipe, and taking out the textile;
s7: the textile is washed and dried.
2. The method for dyeing according to claim 1, wherein in S2:
set up the holder in the dyeing pipe, the holder includes circular arc section and horizontal segment, the fabric is placed on the circular arc section, the circular arc section passes through the horizontal segment and is connected with the inner wall of dyeing pipe.
3. The method for dyeing according to claim 1, wherein in S2:
the textile is pushed through the transfer member.
4. A method of dyeing in a multi-fluid medium according to claim 1, characterized in that: a thermometer and a pH meter are arranged in the pressure stabilizing tank to respectively measure the temperature and the pH value of the liquid, and a flow meter is arranged between the proportional valve and the centrifugal pump to measure the flow of the liquid.
5. A method of dyeing in a multi-fluid medium according to claim 1, characterized in that: the first preset temperature, the second preset temperature and the third preset temperature range from 0 ℃ to 180 ℃.
6. The method of dyeing with multiple fluid media of claim 1, wherein said proportional valve is one of an electromagnetic proportional valve, an electric proportional valve, or an electrohydraulic proportional valve.
7. The method of claim 1, wherein the dyeing solution comprises a dye, an acid, a base, an inorganic salt, and a surfactant.
8. The method of claim 7, wherein the dyeing solution is prepared by the steps of:
10.0g of dye is dissolved in 200L of deionized water, then anhydrous sodium sulfate with the concentration of 5g/L and peregal O with the concentration of 0.2g/L are added, the mixture is stirred evenly until the mixture is completely dissolved, and then citric acid and disodium hydrogen phosphate are added to adjust the pH value of the solution to 5.
9. The method according to claim 1, wherein the dyeing solution forms a first circulating body and a second circulating body.
10. The dyeing method of multiple fluid media according to claim 9, wherein the first circulating body comprises a liquid storage tank, a centrifugal pump and a pressure stabilizing box, and the second circulating body comprises a liquid storage tank, a centrifugal pump, a pressure stabilizing box and a dyeing tube.
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| CN101440559A (en) * | 2008-11-20 | 2009-05-27 | 广东溢达纺织有限公司 | Turbulent current type cheese dyeing method and apparatus thereof |
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