CN111118927A - Active dyeing saline-alkali one-bath leveling agent and application process thereof - Google Patents
Active dyeing saline-alkali one-bath leveling agent and application process thereof Download PDFInfo
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- CN111118927A CN111118927A CN202010009686.6A CN202010009686A CN111118927A CN 111118927 A CN111118927 A CN 111118927A CN 202010009686 A CN202010009686 A CN 202010009686A CN 111118927 A CN111118927 A CN 111118927A
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
- D06P1/00—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed
- D06P1/38—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed using reactive dyes
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
- D06P1/00—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed
- D06P1/44—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed using insoluble pigments or auxiliary substances, e.g. binders
- D06P1/60—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed using insoluble pigments or auxiliary substances, e.g. binders using compositions containing polyethers
- D06P1/607—Nitrogen-containing polyethers or their quaternary derivatives
- D06P1/6076—Nitrogen-containing polyethers or their quaternary derivatives addition products of amines and alkylene oxides or oxiranes
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
- D06P1/00—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed
- D06P1/44—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed using insoluble pigments or auxiliary substances, e.g. binders
- D06P1/60—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed using insoluble pigments or auxiliary substances, e.g. binders using compositions containing polyethers
- D06P1/613—Polyethers without nitrogen
- D06P1/6131—Addition products of hydroxyl groups-containing compounds with oxiranes
- D06P1/6133—Addition products of hydroxyl groups-containing compounds with oxiranes from araliphatic or aliphatic alcohols
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
- D06P1/00—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed
- D06P1/44—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed using insoluble pigments or auxiliary substances, e.g. binders
- D06P1/655—Compounds containing ammonium groups
- D06P1/66—Compounds containing ammonium groups containing quaternary ammonium groups
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
- D06P3/00—Special processes of dyeing or printing textiles, or dyeing leather, furs, or solid macromolecular substances in any form, classified according to the material treated
- D06P3/58—Material containing hydroxyl groups
- D06P3/60—Natural or regenerated cellulose
- D06P3/66—Natural or regenerated cellulose using reactive dyes
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Abstract
The invention discloses an active dyeing saline-alkali one-bath leveling agent, which comprises the following components in parts by weight: the application process comprises the steps of firstly adding the reactive dyeing saline-alkali one-bath leveling agent for running for 3-5 minutes, then adding salt and alkali for running for 10-20 minutes, then adding reactive dye for running for 10-60 minutes, finally heating to 60 ℃ and preserving heat for 10-60 minutes, wherein the reactive dyeing saline-alkali one-bath leveling agent has the function of wrapping fibers, so that the dye can only diffuse but cannot be immediately combined with the fibers, even if the alkali and the salt are added into a dyeing machine firstly, the dyeing uniformity can be ensured, the sealing effect is gradually lost in the heating and temperature rise process, the dye reacts with the fibers, and the color fixing speed can be controlled by controlling the temperature rise speed, the salt and the alkali can be added at one time, so that a large amount of time is saved on the premise of ensuring uniform dyeing, and the production efficiency of the dyeing machine is improved.
Description
Technical Field
The invention relates to a reactive dyeing saline-alkali one-bath leveling agent and an application process thereof, belonging to the technical field of dyeing and finishing.
Background
The reactive dyeing process in the prior art comprises the following steps: firstly adding reactive dye into a dyeing machine, operating for 30-40 minutes, then adding salt for accelerating dyeing for 30-50 minutes, then adding alkali for fixation, and finally preserving heat for 10-60 minutes. Wherein, the alkali is added for 2 to 3 times, and the operation is carried out for 60 to 100 minutes in total. The whole process takes too long, the damage to equipment is large, the power consumption is large, and the production efficiency is low.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention provides the active dyeing saline-alkali one-bath leveling agent and the application process thereof in active dyeing, so that salt and alkali can be simultaneously input in active dyeing, and the total time required by each dyeing is saved.
The technical scheme adopted by the invention for solving the technical problems is as follows:
an active dyeing saline-alkali one-bath leveling agent comprises the following components in parts by weight: 8-10 parts of peregal O, 13-15 parts of octadecylamine polyoxyethylene ether, 6-9 parts of fatty alcohol polyoxyethylene ether, 3-5 parts of dodecyl dimethyl benzyl ammonium chloride and 65-67 parts of water.
Preferably, the peregal O is peregal O-25.
Preferably, the octadecylamine polyoxyethylene ether is selected from AC-1815.
Preferably, the fatty alcohol-polyoxyethylene ether is fatty alcohol-polyoxyethylene ether AEO-9.
An application process of an active dyeing saline-alkali one-bath leveling agent comprises the steps of firstly adding the active dyeing saline-alkali one-bath leveling agent into a dyeing machine, running the dyeing machine for 3-5 minutes, then adding salt and alkali, running for 10-20 minutes, finishing dye injection within 15-40 minutes, running for 10 minutes, finally heating to 60 ℃, and preserving heat for 10-40 minutes.
Preferably, the salt and base are completely dissolved in water prior to addition and the two are mixed in the same solution for use.
Preferably, the heating rate of heating to 60 ℃ is 0.8-1.1 ℃/min.
Preferably, the active dyeing saline-alkali one-bath leveling agent is added into the dyeing machine, and the using concentration of the active dyeing saline-alkali one-bath leveling agent is that 1 g of the active dyeing saline-alkali one-bath leveling agent is added into every liter of water in the dyeing machine.
The invention has the beneficial effects that: the active dyeing saline-alkali one-bath leveling agent has the function of wrapping fibers, groups on the fibers which are reacted with dyes are sealed, the dyes can only be diffused and cannot be immediately combined with the fibers, even though alkali and salt are added into a dyeing machine in advance, the dyeing uniformity can be ensured, and by combining the process disclosed by the invention, in the heating and temperature rising process, the sealing effect of the active dyeing saline-alkali one-bath leveling agent on the fibers is gradually ineffective, the dyes react with the fibers, and the color fixing speed can be controlled by controlling the temperature rising speed.
Detailed Description
An active dyeing saline-alkali one-bath leveling agent comprises the following components in parts by weight: 8-10 parts of peregal O, 13-15 parts of octadecylamine polyoxyethylene ether, 6-9 parts of fatty alcohol polyoxyethylene ether, 3-5 parts of dodecyl dimethyl benzyl ammonium chloride and 65-67 parts of water. The peregal O is peregal O-25, the octadecylamine polyoxyethylene ether is AC-1815, and the fatty alcohol polyoxyethylene ether is fatty alcohol polyoxyethylene ether and AEO-9. Peregal O is a nonionic surfactant and is in the form of cream or beige ointment.
The application process of the active dyeing saline-alkali one-bath leveling agent comprises the steps of firstly adding the active dyeing saline-alkali one-bath leveling agent, running for 3-5 minutes, then adding salt and alkali, running for 10-20 minutes, finishing dye injection within 15-40 minutes, running for 10 minutes, finally heating to 60 ℃, and preserving heat for 10-40 minutes. The method comprises the following steps of adding the active dyeing saline-alkali one-bath leveling agent into a dyeing machine, wherein the use concentration of the active dyeing saline-alkali one-bath leveling agent is that 1 g of the active dyeing saline-alkali one-bath leveling agent is added into every liter of water in the dyeing machine. The heating rate of heating to 60 ℃ is 0.8-1.1 ℃/min. The salt and the alkali can be completely dissolved by water before being added, and the salt and the alkali are mixed in the same solution for standby; or respectively dissolved into aqueous solution and directly added into the dyeing machine.
The molecular structure of the reactive dye consists of four parts, namely a reactive group, a dye matrix, a bridging group and a water-soluble group, wherein the water-soluble group determines the water solubility of the dye, the bridging group influences the reactivity of the dye and the bonding stability of the dye and fibers, the dye matrix determines the affinity, diffusivity, color, light fastness and the like of the dye, and the reactive group is used for carrying out nucleophilic substitution or nucleophilic addition with fiber molecules under an alkaline environment to realize color fixation.
In the reactive dyeing solution system, the fiber and the dye are both negatively charged and repel each other, so that the dye is slowly diffused to the fiber and is difficult to permeate into the fiber. After the salt of neutral electrolyte is added into the dye bath, the cation ionized by the salt is adsorbed on the surface of the fiber, and the resistance (repulsive force) of dye anion close to the surface of the fiber is greatly weakened, so that sodium chloride or anhydrous sodium sulphate is often used as a dyeing accelerant to improve the dyeing rate.
In reactive dyeing, active groups are reacted with fiber molecules under an alkaline environment, and in order to provide the alkaline environment, soda ash or trisodium phosphate is used for increasing the pH of a dye liquor in production. Compared with caustic soda, the soda ash has the advantages of high purity, good buffering performance and the like.
Based on the principle, the general reactive dyeing method comprises the following steps of adding reactive dye into a dye vat, running for 20-30 minutes until the dye is uniformly and freely diffused among fibers, then adding salt, running for 40-60 minutes until new diffusion balance of the dye is formed, then adding alkali, running for 90-120 minutes for fixation, heating to 60 ℃ at the rate of 1.5 ℃ per minute, and finally keeping the temperature for 10-60 minutes to complete, wherein the connection between the dye and the fibers after fixation is changed from adsorption to a covalent bond.
Wherein, the salt can not be added too fast, too fast can also cause the dye-uptake speed to be difficult to control, dye unevenly, simultaneously because the salt is too late to diffuse, the local salt concentration of the dye liquor is high, can cause the dye to precipitate, therefore the salt is generally added twice. It is generally believed that the salt cannot be added first than the dye, and if the salt is added first, the dye dyes the fiber too quickly and tends to be non-uniform on the fiber.
The alkaline is added more strictly than the salt, the possibility of rebalancing still exists due to uneven diffusion, the dye cannot move relative to the fiber once the covalent bond is formed, the too fast alkaline speed can cause the local dye of the dye liquor to react with the fiber too fast, the self diffusion balance is broken rapidly, the dye continues to diffuse to the area with high reaction speed due to the huge dye concentration difference, and the result is that the cloth is very dark at one position and very light at the other position, namely the colloquial 'colored flower' and 'dyed flower', which is the reason why the soda with buffer property and trisodium phosphate are used without raising the pH value to be faster.
In conclusion, the addition of salt and alkali or the addition of salt and alkali within a short time interval is more contraindicated in the dyeing and finishing field, because the dye is rapidly and simultaneously colored and fixed, the degree of colored patterns is stronger and more obvious, and the product has no stability.
The active dyeing saline-alkali one-bath leveling agent has the characteristic of being fiber-philic, and the preparation method comprises the following steps: firstly, taking 65-67 parts of water as a solvent, adding 8-10 parts of peregal O, uniformly stirring, then adding 13-15 parts of octadecylamine polyoxyethylene ether, uniformly stirring, then adding 6-9 parts of fatty alcohol-polyoxyethylene ether, and finally adding 3-5 parts of dodecyl dimethyl benzyl ammonium chloride, and uniformly stirring to obtain the product. The mixed leveling agent can wrap the fiber after being added into a dyeing machine, and the groups of the fiber for reacting with the dye are sealed, so that the dye can only diffuse but cannot be immediately combined with the fiber, and the dye cannot be combined with the fiber, so that the dye can still be freely and uniformly diffused even if the salt is added firstly and then the dye is added; the addition of the base first, although raising the pH, does not fix the dye. The sealing action is not permanent and gradually fails at elevated temperatures.
By utilizing the effect, the reactive dyeing saline-alkali one-bath leveling agent of the invention is applied to the process of the invention, and the dosage of the salt and the alkali is consistent with the prior art when the same dye is used, namely, the final concentration of sodium chloride is approximately 120g/L, and the final concentration of soda is approximately 30g/L, and the specific difference depends on the dye type. The salt and the alkali are mixed firstly and added into the dyeing machine once, so that a great deal of time is saved.
Compared with the prior art and the process of the invention, the process has the following requirements:
the total time of the prior art for single production is 200 and 310 min; the total time of the process is 108-195min, which saves 37-46% of time compared with the prior art.
Because the method is different from the prior art that the dye is added before reaching the diffusion balance to break the dye diffusion balance, the method adds the dye before adding the salt and the alkali in the dyeing machine and running uniformly, the condition that the local salt concentration of the dyeing solution is too high or the alkali concentration is too high does not exist, and the salt and the alkali can be added quickly at a high flow rate.
The dye can be heated for fixation after being uniformly diffused, when the temperature is raised by heating, the sealing effect of the active dyeing saline-alkali one-bath leveling agent on the fiber is gradually ineffective, and the fiber which is exposed successively reacts with the dye in an alkaline environment. Because the alkali, the salt and the dye respectively reach the dissolution balance before heating, namely the alkali, the salt and the dye respectively have consistent concentration at each part of the fiber, the fixation is easy to realize uniformity. In the prior art, the salt adding speed, the alkali adding speed and the temperature rising speed are required to be controlled for uniform dyeing; the process only needs to control the temperature rise speed so as to control the color fixing speed, so that the dyeing is uniform, the product quality is easier to control, and the batch production is more stable.
Of course, due to the difference of the feeding sequence, in order to ensure the uniform diffusion of the dye, the time for adding the dye in the process of the invention is longer than the running time after adding the dye in the process of the prior art, namely the speed for injecting the dye is slightly slower than that of the prior art; the temperature rise can increase the color fixing speed not only to disable the sealing function but also to increase the solubility of the soda ash, so that the temperature rise speed in the process is slower than that in the prior art to control the dyeing uniformity, the temperature rise speed in the prior art is generally 1.5 ℃/min, and the temperature rise speed in the optimal method is 1.0 ℃/min. Although the time of dye diffusion and temperature rise is prolonged, compared with the prior art, the total process time is used, the electricity consumption is saved by at least 38-60 kilowatts for producing one ton of cloth, the time for use is saved by 60-90 minutes, the production efficiency is greatly improved, and the equipment breakage of single production is reduced.
The process of the present invention also has an advantage. In the laboratory simulation of production, the amount of salt and alkali to be added is very small, and it is difficult to simulate a small amount of salt and alkali to be added in several times and slowly. For example, in the laboratory simulation prior art dyeing, even if a large flask is adopted, the saline added at a certain moment is only one drop of dozens of drops, the instantaneous concentration is too high when enough drops are accumulated and then dropped, the concentrations of the dye and the like in the flask are strictly designed, so that the saline cannot be diluted to be added more easily, the repeatability is poor after the process developed in the prior art is applied to the workshop production, the difference between the reproducibility and the laboratory conclusion is large, and the number of times of debugging is large when one research and development result is applied to the actual production. After the active dyeing saline-alkali one-bath leveling agent is applied, salt and alkali are added in one step in actual production, a laboratory can simulate one-time feeding easily, the reproducibility is good after the active dyeing saline-alkali one-bath leveling agent is applied to workshop production after a process is developed, the active dyeing saline-alkali one-bath leveling agent can be put into practical production after 2-3 experiments, and the process improvement of changing the feeding time, different formulas and different colors of pigments can be applied to the actual production quickly.
Example one
The KN-B dye is used for dyeing black cotton cloth, an active dyeing salt-alkali one-bath leveling agent is added into a dyeing machine for running for 4 minutes, then salt and alkali are added for running for 10 minutes, the KN-B dye is added, the injection dyeing time is 30 minutes, the running time is 10 minutes, the temperature is raised to 60 ℃ within 50 minutes, and the heat preservation time is 30 minutes.
The active dyeing saline-alkali one-bath leveling agent is prepared by sequentially adding the following raw materials in 67 parts by weight of water: the peregal O is 8 parts of peregal O-25 (Nantong Wei Er), the octadecylamine polyoxyethylene ether is 15 parts of AC-1815 (Federal in Guangdong), the fatty alcohol polyoxyethylene ether is 8 parts of AEO-9 (Zhengzhou Keqi), and the dodecyl dimethyl benzyl ammonium chloride (Jinan Texing) is 4 parts. The same applies to each raw material added with the solution and then stirred uniformly.
Example two
The method comprises the steps of dyeing red on cotton cloth by using K-2BP dye, adding an active dyeing salt-alkali one-bath leveling agent into a dyeing machine, running for 3 minutes, then adding salt and alkali, running for 12 minutes, then adding the K-2BP dye, carrying out injection dyeing for 15 minutes, running for 10 minutes, heating to 60 ℃ within 32 minutes, and carrying out heat preservation for 10 minutes.
The active dyeing saline-alkali one-bath leveling agent is prepared by sequentially adding the following raw materials in 67 parts by weight of water: pinggangjia O is 9 parts of Pinggangjia O-25 (Nantong Wei Er), octadecylamine polyoxyethylene ether is 15 parts of AC-1815 (Federal in Guangdong), fatty alcohol polyoxyethylene ether is 9 parts of AEO-9 (Zhengzhou Keqi), and dodecyl dimethyl benzyl ammonium chloride (Jinan Texg) is 4 parts. The same applies to each raw material added with the solution and then stirred uniformly.
EXAMPLE III
The method comprises the steps of dyeing purple cotton cloth by using KN-4R dye, adding an active dyeing salt-alkali one-bath leveling agent into a dyeing machine, running for 5 minutes, then adding salt and alkali, running for 20 minutes, then adding the KN-4R dye, performing injection dyeing for 40 minutes, running for 10 minutes, heating to 60 ℃ within 35 minutes, and preserving heat for 60 minutes.
The active dyeing saline-alkali one-bath leveling agent is prepared by sequentially adding the following raw materials in parts by weight into 65 parts of water: pinggangjia O is 10 parts of Pinggangjia O-25 (Nantong Wei Er), octadecylamine polyoxyethylene ether is 14 parts of AC-1815 (Federal in Guangdong), fatty alcohol polyoxyethylene ether is 6 parts of AEO-9 (Zhengzhou Keqi), and dodecyl dimethyl benzyl ammonium chloride (Jinan Texg) is 3 parts. The same applies to each raw material added with the solution and then stirred uniformly.
Example four
Dyeing red on cotton cloth by using X-3B dye, adding an active dyeing salt-alkali one-bath leveling agent into a dyeing machine, running for 5 minutes, then adding salt and alkali, running for 17 minutes, then adding the X-3B dye, carrying out injection dyeing for 25 minutes, running for 2 minutes, heating to 60 ℃ within 45 minutes, and carrying out heat preservation for 50 minutes.
The active dyeing saline-alkali one-bath leveling agent is prepared by sequentially adding the following raw materials in parts by weight into 66 parts of water: the peregal O is 8 parts of peregal O-25 (Nantong Wei Er), 13 parts of octadecylamine polyoxyethylene ether is AC-1815 (Federal in Guangdong), 7 parts of fatty alcohol polyoxyethylene ether is AEO-9 (Zhengzhou Keqi), and 5 parts of dodecyl dimethyl benzyl ammonium chloride (Jinan Texing). The same applies to each raw material added with the solution and then stirred uniformly.
Reference example
The method comprises the steps of dyeing purple cotton cloth with KN-4R dye, respectively dissolving salt and alkali in two storage tanks, firstly injecting the KN-4R dye into a dyeing machine, operating the dyeing machine for 20 minutes, injecting half of salt solution within 20 minutes at a low flow rate, continuously operating for 5 minutes, then injecting the other half of salt solution within 20 minutes, continuously operating for 5 minutes, then injecting one third of alkali solution within 30 minutes, continuously operating for 5 minutes, then completely adding all the rest alkali solution within 30 minutes, starting heating, increasing the temperature to 60 ℃ within 40 minutes, and finally preserving the temperature for 20 minutes.
The cloth dyed in the reference example, the first example, the second example, the third example and the fourth example is tested for the color fixing degree according to the color fastness to rubbing of GB/T3920-:
therefore, the process provided by the invention can ensure that the dyed cotton cloth has better color fastness, the color fixation degree is equivalent to that of reactive dyeing by using the prior art, and on the premise of ensuring color fastness and uniform dyeing, the production efficiency can be improved, water and electricity are saved, and the repeatability of putting laboratory research and development results into actual production is improved by using the salt-alkali one-bath leveling agent in combination with the process provided by the invention.
While the foregoing is directed to the preferred embodiment of the present invention, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention.
Claims (8)
1. The active dyeing saline-alkali one-bath leveling agent is characterized by comprising the following components in parts by weight: 8-10 parts of peregal O, 13-15 parts of octadecylamine polyoxyethylene ether, 6-9 parts of fatty alcohol polyoxyethylene ether, 3-5 parts of dodecyl dimethyl benzyl ammonium chloride and 65-67 parts of water.
2. The reactive dyeing saline-alkali one-bath leveling agent according to claim 1, characterized in that the peregal O is peregal O-25.
3. The reactive dye saline-alkali one-bath leveling agent according to claim 1, wherein the octadecylamine polyoxyethylene ether is selected from AC-1815.
4. The reactive dyeing saline-alkali one-bath leveling agent according to claim 1, characterized in that the fatty alcohol-polyoxyethylene ether is AEO-9.
5. The application process of the active dyeing saline-alkali one-bath leveling agent as claimed in claim 1, characterized in that the active dyeing saline-alkali one-bath leveling agent is added into a dyeing machine, the dyeing machine is operated for 3-5 minutes, then salt and alkali are added for 10-20 minutes, the dye is injected within 15-40 minutes and operated for 10 minutes, finally the temperature is raised to 60 ℃, and the temperature is maintained for 10-40 minutes.
6. The process for applying the reactive dyeing saline-alkali one-bath leveling agent according to claim 5, wherein the salt and the alkali are completely dissolved by water before being added, and the two are mixed in the same solution for standby.
7. The process for applying the reactive dyeing saline-alkali one-bath leveling agent according to claim 5, wherein the heating rate of heating to 60 ℃ is 0.8-1.1 ℃/min.
8. The application process of the active dyeing saline-alkali one-bath leveling agent according to claim 5, characterized in that the active dyeing saline-alkali one-bath leveling agent is added into a dyeing machine in the step of adding 1 g of the active dyeing saline-alkali one-bath leveling agent into per liter of water in the dyeing machine.
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| CN105421108A (en) * | 2015-12-14 | 2016-03-23 | 嘉兴学院 | Leveling agent for leather, preparation method and leather dying method |
| CN106436376A (en) * | 2016-09-19 | 2017-02-22 | 江苏工程职业技术学院 | Preparation method of leveling agent for one-bath dyeing of polyester-cotton fabric |
| CN107164980A (en) * | 2017-05-25 | 2017-09-15 | 浙江丝科院轻纺材料有限公司 | A kind of special levelling agent of reactive dye dyeing cycle and preparation method thereof |
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