CN113584909B - One-bath dyeing method of ion exchange resin-disperse dye - Google Patents
One-bath dyeing method of ion exchange resin-disperse dye Download PDFInfo
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- CN113584909B CN113584909B CN202110943142.1A CN202110943142A CN113584909B CN 113584909 B CN113584909 B CN 113584909B CN 202110943142 A CN202110943142 A CN 202110943142A CN 113584909 B CN113584909 B CN 113584909B
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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
- D06P1/16—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 dispersed, e.g. acetate, dyestuffs
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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
- D06P3/34—Material containing ester groups
- D06P3/52—Polyesters
- D06P3/54—Polyesters using dispersed dyestuffs
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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
- D06P5/00—Other features in dyeing or printing textiles, or dyeing leather, furs, or solid macromolecular substances in any form
- D06P5/20—Physical treatments affecting dyeing, e.g. ultrasonic or electric
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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
- D06P7/00—Dyeing or printing processes combined with mechanical treatment
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Abstract
The invention belongs to the technical field of textile printing and dyeing, and particularly relates to a one-bath dyeing method of ion exchange resin-disperse dye. The invention adopts ion exchange resin to adjust the pH value in the dye bath, so that the common disperse dye can finish the processes of pretreatment dyeing and reduction cleaning in one bath, and finally the discharged wastewater can directly reach the national drainage salt content and pH value standard, thereby reducing the use of acid-alkali liquor and the difficulty of wastewater treatment. Through the regulation and control of the reflux frequency of the wastewater in the resin, the method is not only suitable for dyeing of alkali-resistant disperse dyes under an alkali condition, but also suitable for one-bath dyeing of common disperse dyes.
Description
Technical Field
The invention relates to a one-bath dyeing method of ion exchange resin-disperse dye, belonging to the technical field of textile printing and dyeing.
Background
The polyester fiber and the blended fabric thereof have important application in the current high-grade fabrics, and the applicable dye is disperse dye. When the disperse dye is used for dyeing chemical fibers such as terylene, the disperse dye is mainly used for dyeing under the acidic condition of pH 4.5-5.5. In practical application, during acid dyeing, oligomer or oligomer in the terylene is separated out and is adhered to the surface of textile or the inner wall of a dyeing container, so that the terylene has the defects of colored pattern and the like. Meanwhile, acid-base conditions of the procedures of pretreatment, dyeing, reduction cleaning and the like are changed continuously, a large amount of acid-base auxiliaries are required to be consumed, salt which is difficult to remove is increased in the wastewater, and the development aims of low consumption, high efficiency, green energy conservation and emission reduction are not met. Therefore, a series of alkaline dyeing processes and auxiliary agents thereof are developed by a plurality of researchers, and the dyeing defects caused by low polymers and the like are solved to a certain extent.
Although the dyeing defect possibly generated in acid dyeing can be solved to a certain extent by the method, most disperse dyes are not alkali-resistant, only special alkali-resistant disperse dyes can dye under the alkali condition, and most alkali-resistant disperse dyes only resist weak alkali with the pH value of less than 10, cannot achieve the application performance required by alkali dyeing, cause incomplete chromatogram, and have great difficulty in developing new alkali-resistant disperse dyes. Meanwhile, in the dyeing process, auxiliary agents such as pH stabilizers and the like which are discharged along with the wastewater are needed, and the new problems of increased wastewater treatment difficulty, higher dyeing cost and the like are solved. Meanwhile, the waste water has high alkalinity, a large amount of acid agent is consumed for neutralization, and a large amount of salt still exists in the waste liquid, so that the waste liquid is difficult to remove. Therefore, the development of dyeing processes and auxiliaries which can be used for common disperse dyes for one-bath dyeing and have less pollution is a main way to solve the problems.
Disclosure of Invention
[ problem ] to provide a method for producing a semiconductor device
In the prior art, common disperse dyes are difficult to be applied to alkaline dyeing, and most of alkali-resistant disperse dyes are not resistant to strong alkali.
[ technical solution ] A
The invention provides an ion exchange resin-disperse dye alkaline dyeing process, which aims to solve the problems that common disperse dyes are difficult to apply to alkaline dyeing, most of alkali-resistant disperse dyes are not resistant to strong alkali and the like in the prior art.
The first purpose of the invention is to provide a disperse dye alkaline dyeing method, which comprises the steps of firstly treating refined wastewater by adopting a cation exchange resin column, then adding disperse dye to form a dye bath to dye textiles, and after dyeing is finished, reducing and cleaning the dye bath through the ion exchange resin column to obtain dyed textiles.
In one embodiment of the invention, the refining wastewater is passed through a cationic resin column such that the pH of the wastewater is controlled between 4 and 7.
In one embodiment of the present invention, when the disperse dye is an acid-resistant disperse dye, the ion exchange resin employs an anion exchange resin column.
In one embodiment of the invention, the bath pH is controlled between 9 and 13 after passing through the anionic resin column.
In one embodiment of the present invention, when the disperse dye is a base-resistant disperse dye, the ion exchange resin employs a cation exchange resin column.
In one embodiment of the invention, the bath pH is controlled between 2 and 4 after passing through the cationic resin column.
In one embodiment of the invention, the dyeing temperature is set to be 120-130 ℃ according to different dye properties, the total heat preservation time is 30-60 min according to different dye uptake rates, and the temperature rise rate is adjusted to be 1-3 ℃/min according to different dye affinities.
In one embodiment of the invention, the textile is a fiber, yarn, fabric, and blends thereof, capable of being dyed using disperse dyes.
In one embodiment of the present invention, the fiber capable of being dyed using the disperse dye includes a polyester fiber or an acetate fiber.
A second object of the present invention is to provide a dyed textile product, said textile product being obtained by using the above-mentioned process.
The third purpose of the invention is to provide a method for reducing and cleaning disperse dyes, which utilizes an ion exchange resin column to carry out reducing and cleaning on the regulation and control of the pH value of a dye bath.
In one embodiment of the present invention, when the disperse dye is an acid-resistant disperse dye, the ion exchange resin employs an anion exchange resin column.
In one embodiment of the present invention, when the disperse dye is a base-resistant disperse dye, the ion exchange resin employs a cation exchange resin column.
The fourth purpose of the invention is to provide an overflow dyeing machine and a vertical overflow dyeing machine, wherein a water circulation device is arranged outside a dye vat in the dyeing machine, the water circulation device comprises a guide pipe and a detachable ion exchange resin column, and dye liquor in the dye vat circulates through the ion exchange resin column to be reduced and cleaned at a proper pH value.
In one embodiment of the invention, a detachable cation exchange resin column is further connected to the water inlet pipe of the overflow dyeing machine to adjust the pH value of the refined wastewater to reach a proper dyeing acid-base environment.
In one embodiment of the invention, the water circulation device further comprises a reflux pump, so that the dye liquor can be conveniently circulated.
In one embodiment of the present invention, when the disperse dye is an acid-resistant disperse dye, the ion exchange resin employs an anion exchange resin column.
In one embodiment of the present invention, when the disperse dye is a base-resistant disperse dye, the ion exchange resin employs a cation exchange resin column.
In one embodiment of the invention, the drainage pipe of the dyeing machine is provided with a detachable ion exchange resin column, and the wastewater is drained after passing through the ion exchange resin column. So that the pH value and the salt content in the finally discharged waste liquid meet the national drainage standard.
The invention has the beneficial effects that:
compare and be applicable to this dyeing method in traditional dyeing machine, need not to pump water alone to the water treatment tower in, can accomplish on original machine to can carry out ion exchange resin post according to different technology and change, application scope is wide.
Compared with the prior art, the invention has the following advantages: the ion exchange resin is adopted to adjust the pH value in the dye bath, so that the common disperse dye can finish the processes of pretreatment dyeing and reduction cleaning in one bath, and finally the discharged wastewater can directly reach the salt content and the pH value standard of national drainage, thereby reducing the use of acid-base solution and the difficulty of wastewater treatment. Through regulating and controlling the reflux frequency of the wastewater in the resin, the method is not only suitable for dyeing alkali-resistant disperse dyes under an alkali condition, but also suitable for dyeing common disperse dyes in one bath; the process has relatively low dyeing cost, and the resin can be repeatedly treated and used; the problems of high energy consumption and water consumption, difficult wastewater treatment and the like in dyeing and finishing process flows of terylene and the like are solved.
Drawings
FIG. 1 is a schematic view of a process curve;
FIG. 2 is a graph of cycle time (min) of an alkaline bath versus pH of the alkaline bath, wherein the alkaline bath is rendered alkaline by sodium hydroxide, and the resin is weighted by the weight of the alkaline bath 1:10;
fig. 3 is the horizontal overflow dyeing machine of example 4;
fig. 4 is a vertical overflow dyeing machine of example 5.
Detailed Description
The following description is of preferred embodiments of the invention, and it is to be understood that the embodiments are for the purpose of illustrating the invention better and are not to be taken in a limiting sense.
1. The dye uptake test method comprises the following steps:
taking a certain amount of dye bath before and after dyeing, diluting the dye bath to a certain concentration by using deionized water, further diluting and dissolving the dye bath by using N, N-Dimethylformamide (DMF), measuring the maximum absorption wavelength and absorbance of the dye bath by using a UV2600 ultraviolet-visible light spectrophotometer, and calculating the dyeing rate according to the following formula:
in the formula, E is the dye uptake; a. The0Is the absorbance of the dye in DMF solution before dyeing; a. The1Is the absorbance of the dye in DMF solution after dyeing.
2. Test method of color fastness:
carrying out soaping resistance color fastness test according to GB/T3921-2008; and performing an abrasion color fastness test according to GB/T3920-2008.
The cation resin column mentioned in the examples is a strongly acidic styrene cation exchange resin column available from Touifang Jinnan resin Co., ltd., model 001X 7 (732); the anion resin device is a strong base styrene anion exchange resin column which is purchased from Touifang Jinnan resin Co., ltd, model number 201 x 7 (717).
Example 1:
the pretreatment dyeing one-bath process is shown in figure 1, and pure polyester plain woven grey cloth with the weight of 200KG is selected. In a high-temperature high-pressure overflow dyeing machine, the total liquid volume is 2000 liters, 3KG sodium hydroxide is added as a refining agent, the terylene grey cloth is put into a dyeing machine for refining, after that, the waste liquid is filled with 150KG pretreated cation resin columns for 90s, the pH value of a dye bath is 6.21, 0.4KG C.I. disperse orange 30 is added, and the dye has the following structural formula:
heating the refining bath to 80 ℃ at the heating rate of 2 ℃/min, preserving heat for 15min, allowing the waste liquid to flow through a cationic resin column for 90s, adding a dye, heating to 130 ℃ at the heating rate of 2 ℃/min, and preserving heat for 60min. And (3) allowing the waste liquid to flow through a cation resin column, naturally cooling to below 60 ℃, passing through an anion resin device, and discharging the liquid after the pH value reaches the standard. And then, injecting clear water for cleaning for 15min, discharging and drying to obtain a bright red fabric which is clean and tidy in cloth cover, uniform in color and comfortable and stiff in hand feeling.
Example 2:
the pretreatment dyeing one-bath process is shown in figure 1, and pure polyester double-sided twill grey cloth with the weight of 200KG is selected. Adding 4KG sodium hydroxide as a refining component into a high-temperature high-pressure overflow dyeing machine, wherein the total liquid volume is 2000 liters, putting polyester grey cloth into the dyeing machine for refining, filling 150KG pretreated cationic resin columns for 90s after the refining is finished, adding 0.4KG C.I. disperse blue 359, and the structural formula of the dye is as follows:
heating the refining bath to 80 ℃ at the heating rate of 2 ℃/min, preserving heat for 15min, allowing the waste liquid to flow through a cationic resin column for 90s, adding a dye, heating to 130 ℃ at the heating rate of 2 ℃/min, and preserving heat for 60min. The waste liquid flows through a cation resin column, is naturally cooled to below 60 ℃, passes through an anion resin device and is discharged. And then, injecting clear water for cleaning for 15min, discharging and drying to obtain a blue fabric, wherein the fabric is clean and tidy, bright in color and cool and stiff in hand feeling.
Example 3:
the pretreatment dyeing one-bath process is shown in figure 1, and pure polyester double-sided twill grey cloth with the weight of 200KG is selected. Adding 3KG sodium hydroxide and 3KG refining agent HE0815 into a high-temperature high-pressure overflow dyeing machine as refining components, wherein the total liquid volume is 2000 liters, putting polyester gray fabric into the dyeing machine for refining, after that, passing waste liquid through a column filled with 150KG pretreated cationic resin for 90s, wherein the pH value of a dye bath is 7.05, and adding 0.4KG C.I.disperse red 3B, wherein the dye structural formula is as follows:
heating the refining bath to 80 ℃ at the heating rate of 2 ℃/min, keeping the temperature for 15min, allowing the waste liquid to flow through a cationic resin column for 90s, adding a dye, heating to 130 ℃ at the heating rate of 2 ℃/min, and keeping the temperature for 60min. The waste liquid flows through a cation resin column, is naturally cooled to below 60 ℃, passes through an anion resin device and is discharged. And then, injecting clear water for cleaning for 15min, discharging and drying to obtain a blue fabric, wherein the fabric is clean and tidy, bright in color and cool and stiff in hand feeling.
Example 4:
a horizontal overflow dyeing machine is disclosed in figure 3, wherein a water circulation device is arranged outside a dye vat in the dyeing machine, the water circulation device comprises a guide pipe and a cutting type ion exchange resin column, and dye liquid in the dye vat circulates through the ion exchange resin column for reduction cleaning.
Furthermore, a detachable cation exchange resin column is connected to a reflux water pipe of the overflow dyeing machine to adjust the pH value of the refined wastewater to a proper dyeing acid-base environment.
Furthermore, the water circulation device also comprises a reflux pump, so that the dye liquor can be conveniently circulated.
Further, when the disperse dye is an acid-resistant disperse dye, the ion exchange resin employs an anion exchange resin column.
Further, when the disperse dye is an alkali-resistant disperse dye, the ion exchange resin employs a cation exchange resin column.
Furthermore, a drain pipe of the dyeing machine is provided with a detachable anion/cation exchange resin column, and the wastewater is drained after passing through the ion exchange resin column. So that the pH value and the salt content in the finally discharged waste liquid meet the national drainage standard.
Example 5:
a vertical overflow dyeing machine is characterized in that a water circulating device is arranged outside a dye vat in the dyeing machine and comprises a guide pipe and a detachable ion exchange resin column, and dye liquor in the dye vat circulates through the ion exchange resin column to be restored and cleaned, as shown in figure 4.
Furthermore, a detachable cation exchange resin column is connected to a reflux water pipe of the overflow dyeing machine to adjust the pH value of the refined wastewater to reach a proper dyeing acid-base environment.
Furthermore, the water circulation device also comprises a reflux pump, so that the dye liquor can be conveniently circulated.
Further, when the disperse dye is an acid-resistant disperse dye, the ion exchange resin employs an anion exchange resin column.
Further, when the disperse dye is an alkali-resistant disperse dye, the ion exchange resin employs a cation exchange resin column.
Furthermore, a drain pipe of the dyeing machine is provided with a detachable anion/cation exchange resin column, and the wastewater is drained after passing through the ion exchange resin column. So that the pH value and the salt content in the finally discharged waste liquid meet the national drainage standard.
Comparative example 1:
dyeing was carried out by referring to the method of example 1 except that the process of passing the refined waste liquid through the cationic resin column was omitted and other conditions or parameters were the same as those of example 1 to obtain dyed cloth and waste liquid.
Comparative example 2:
dyeing was performed by referring to the method of example 1 except that the process of passing the waste liquid after dyeing through the cationic resin column was omitted and other conditions or parameters were the same as those of example 1 to obtain a dyed cloth and a waste liquid.
Comparative example 3:
dyeing was carried out by referring to the method of example 1 except that the process of passing the waste liquid through the anion resin column before discharging was omitted and other conditions or parameters were the same as those of example 1 to obtain dyed cloth and the waste liquid.
Comparative example 4: blank group
Dyeing was performed by referring to the method of example 1 except that all the ion resin column processes were omitted and other conditions or parameters were the same as those of example 1 to obtain dyed cloth and waste liquid.
Comparative example 5:
the order of addition of the dyes was adjusted to be prior to the circulation of the cation exchange resin column, and other conditions or parameters were the same as those in example 1, to obtain a dyed fabric and a waste liquid.
The indexes of dyeing and waste liquor of the examples and the comparative examples are as follows:
TABLE 1 index of dyeing and waste liquor of examples and comparative examples
As the best dyeing pH value of most common disperse dyes is neutral to weak acidity, the disperse dyes can be reduced and cleaned under the conditions of strong alkalinity or strong acid type to improve the color fastness, and the results in the table show that the first resin column is used for adjusting the dyeing pH value to enable the dyeing pH value to reach the proper dyeing acid alkaline environment, and compared with the unadjusted comparative example 1, the dye uptake is obviously improved; the second resin column is used for adjusting the pH value and removing partial cationic salts in water, so that the effect of reducing and cleaning the flooding on the fabric is achieved, and compared with the unadjusted comparative example 2, the color fastness is obviously improved, and the salinity of the water body is reduced; and the third resin column is used for adjusting the pH value and removing partial anion salts in the water, so that the pH value and the salinity of the discharged wastewater reach the direct discharge standard, and compared with the unadjusted comparative example 3, the pH value and the salinity both reach the direct discharge standard. Comparative example 4 does not use resin to participate in the whole dyeing process, so the dyeing effect is not good, and the discharged sewage completely does not meet the acid-base value and salinity direct discharge standard. Comparative example 5 since the disperse dye was added before the refining agent was circulated through the ion column, the ph did not reach the dyeing environment and the dye was partially hydrolyzed, and at the same time the ion column was circulated for a more concentrated dye liquor, and the dye was hydrolyzed while a portion of the dye was adsorbed on the ion column, the dye uptake was significantly increased compared to comparative example 1.
Although the present invention has been described with reference to the preferred embodiments, it should be understood that various changes and modifications can be made therein by those skilled in the art without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (3)
1. A disperse dye dyeing method is characterized in that firstly, a cation exchange resin column is adopted to treat refined wastewater, then disperse dye is added to form a dye bath to dye a textile, and after dyeing is finished, the dye bath controls the pH value through the ion exchange resin column to reduce and clean the textile, so that a dyed textile is obtained; discharging the dyeing waste liquid after passing through an ion exchange resin column; the cation exchange resin column is a strong-acid styrene cation exchange resin column; the refined wastewater passes through a cation resin column, so that the pH value of the wastewater is controlled between 6.21 and 7;
when the disperse dye is an acid-resistant disperse dye, an ion exchange resin column subjected to reduction cleaning is an anion exchange resin column, and the anion exchange resin column is a strongly basic styrene anion exchange resin column; when the disperse dye is alkali-resistant disperse dye, the ion exchange resin column for reduction cleaning is a cation exchange resin column; the cation exchange resin column is a strong-acid styrene cation exchange resin column.
2. The method of claim 1, wherein the textile is a fiber, yarn, fabric that can be dyed using disperse dyes.
3. A method for reducing and cleaning disperse dyes is characterized in that an ion exchange resin column is used for regulating and controlling the pH value of a dye bath to reduce and clean textiles; when the disperse dye is acid-resistant, the ion exchange resin column for reduction cleaning is an anion exchange resin column, and the anion exchange resin column is a strongly basic styrene anion exchange resin column; when the disperse dye is alkali-resistant disperse dye, the ion exchange resin column for reduction cleaning is a cation exchange resin column; the cation exchange resin column is a strong-acid styrene cation exchange resin column.
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| BE794533A (en) * | 1972-01-26 | 1973-07-25 | Grp D Interet Economique | DYEING PROCESS BY EXHAUSTING IN A SOLVENT MEDIA TEXTILE MATERIALS OF A BASIC CHARACTER WITH ANIONIC DYES |
| IT1204469B (en) * | 1986-03-07 | 1989-03-01 | Enichem Fibre Spa | PROCEDURE FOR THE TREATMENT OF WASTE WATER DERIVED FROM THE IN-LINE DYEING OF ACRYLIC FIBERS |
| CN101967728A (en) * | 2010-09-14 | 2011-02-09 | 冠宏股份有限公司 | Method for producing fabrics with sport function |
| CN102285732A (en) * | 2011-06-02 | 2011-12-21 | 东华大学 | Treatment method of seawater applied in active dye dyeing |
| CN105696386B (en) * | 2016-03-08 | 2017-12-01 | 浙江盛发纺织印染有限公司 | A kind of polyester fabric is scouringed and bleaching dyeing technique |
| CN107954535A (en) * | 2016-10-14 | 2018-04-24 | 天长市高新技术创业服务中心 | A kind of environment-friendly treatment method of dyeing terylene waste water |
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