CN111235908B - Water-saving and energy-saving dyeing method for terylene - Google Patents
Water-saving and energy-saving dyeing method for terylene Download PDFInfo
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- CN111235908B CN111235908B CN202010086103.XA CN202010086103A CN111235908B CN 111235908 B CN111235908 B CN 111235908B CN 202010086103 A CN202010086103 A CN 202010086103A CN 111235908 B CN111235908 B CN 111235908B
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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
- 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
- D06P1/90—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 dyes dissolved in organic solvents or aqueous emulsions thereof
- D06P1/92—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 dyes dissolved in organic solvents or aqueous emulsions thereof in organic solvents
- D06P1/928—Solvents other than hydrocarbons
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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
- D06P5/02—After-treatment
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
- Y02P70/62—Manufacturing or production processes characterised by the final manufactured product related technologies for production or treatment of textile or flexible materials or products thereof, including footwear
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- Textile Engineering (AREA)
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Abstract
The invention discloses a water-saving and energy-saving dyeing method for terylene, which comprises the following steps: A. preparation of eutectic solvent: mixing choline chloride, glycerol and benzyl alcohol according to the molar ratio of 1: 1, and heating and stirring in water to obtain a eutectic solvent; B. preparing a dye solution: dispersing dye, namely mixing DES and water according to volume ratio and bath ratio, and then uniformly stirring to prepare dye liquor; C. dyeing: adding the pretreated terylene into the dye solution, heating to 98-100 ℃ at the speed of 1.5-2 ℃/min, and preserving heat for 40-60 min for dyeing; D. and (3) dyeing post-treatment: the dyed terylene is washed by hot water at 60 ℃, then washed by cold water, dehydrated and dried, the method has the advantages of extremely low water consumption, low dyeing temperature, no need of adding dyeing auxiliaries such as dispersing agent and the like, no need of reduction washing, reusable dyeing medium, water and energy conservation, and capability of reducing the influence of the traditional aqueous phase dyeing method on the environment.
Description
Technical Field
The invention relates to the technical field of water-saving and energy-saving low-temperature dyeing of terylene, in particular to a water-saving and energy-saving dyeing method of terylene.
Background
Polyester fiber is a commonly used textile fiber, and is usually dyed with disperse dyes. The traditional disperse dye dyeing uses water as a medium, the dyeing temperature is high, a plurality of dyeing auxiliaries are added into a dye bath during dyeing, reduction cleaning is carried out after dyeing, the whole dyeing process consumes a large amount of water and chemicals, discharged wastewater contains various surfactants which are difficult to remove and unused dyes, and the sewage treatment cost is increased. In order to reduce the pollution to the environment, people improve the dyeing process on the one hand, and hopefully, the utilization rate of the dye can be improved, and the use of water and chemical auxiliary agents can be reduced; on the other hand, a dyeing medium capable of replacing water is continuously sought, and it is desired to realize waterless dyeing. At present, most of non-aqueous medium dyeing methods studied at home and abroad mainly comprise: vacuum sublimation dye dyeing, supercritical carbon dioxide dyeing, non-aqueous solvent dyeing and the like. The vacuum sublimation dyeing is that the dye is sublimated into a gas state at a higher temperature or under a vacuum condition, is adsorbed on the fiber and diffuses into the fiber, and finally the dyeing process is finished. The dyeing technology has high requirements on dyes, the dye sublimation speed is not easy to control, uneven dyeing is easy to cause, the requirements on equipment are high, the equipment pollution is serious, and the cleaning is difficult. The supercritical carbon dioxide dyeing technology is a non-aqueous medium dyeing method which is widely concerned by countries in the world in recent years, although the supercritical carbon dioxide dyeing technology has made great progress in dyeing, some commercial scale prototypes have appeared, but a great problem exists in the polyester fiber dyeing that the oligomer in the polyester fiber can be transferred to the surface of the fabric and the inner surface of dyeing equipment, and the quality of the dyed fabric and the operating efficiency of a dyeing machine are influenced. In addition, supercritical carbon dioxide dyeing requires high-pressure equipment, which is high in requirements on operators and high in cost. The solvent dyeing has the advantages of high production efficiency, no sewage treatment problem, low energy consumption and the like, can solve the oligomer problem in the dyeing of the polyester fabric, and is more and more valued by people. However, solvent dyeing also has the disadvantages of high cost and troublesome solvent recovery. The influence of the solvent on the performance of fiber, dye and dyed fabric as well as health, safety and environment is comprehensively considered, and the selection of a proper dyeing solvent is the key for determining the development of the solvent dyeing technology.
Disclosure of Invention
The invention aims to provide a method for dyeing terylene by using a deep eutectic solvent of choline chloride, glycerin and benzyl alcohol as a dyeing medium and using disperse dye at the temperature of nearly 100 ℃. Choline chloride and glycerol are typical eutectic solvents, are potential green solvents, have simple and convenient synthesis process and low price, and are widely applied to the fields of electrochemistry, catalysis, organic synthesis, dissolution and extraction and material chemistry. The terylene water-saving and energy-saving dyeing method takes choline chloride, glycerol and benzyl alcohol eutectic solvent as a dyeing medium for dyeing, has little water consumption, low dyeing temperature, no need of adding dyeing auxiliaries such as a dispersing agent and the like, no need of reduction and cleaning, reusability of the dyeing medium, water and energy conservation, and can reduce the influence of the traditional water-phase dyeing method on the environment, and solves the problems in the background art.
In order to achieve the purpose, the invention provides the following technical scheme: a water-saving and energy-saving dyeing method for terylene comprises the following steps: a water-saving and energy-saving dyeing method for terylene comprises the following steps:
A. preparation of eutectic solvent: mixing choline chloride, glycerol and benzyl alcohol according to the molar ratio of 1: 1, and heating and stirring in water to obtain a eutectic solvent;
B. preparing a dye solution: dispersing dye, namely mixing DES and water according to volume ratio and bath ratio, and then uniformly stirring to prepare dye liquor;
C. dyeing: adding the pretreated terylene into the dye solution, heating to 98-100 ℃ at the speed of 1.5-2 ℃/min, and preserving heat for 40-60 min for dyeing;
D. and (3) dyeing post-treatment: and (3) washing the dyed terylene by hot water at 60 ℃, then washing by cold water, dehydrating and drying.
Preferably, the eutectic solvent is obtained by heating and stirring in a water bath at 40 ℃ according to the step A until a transparent liquid is formed.
Preferably, 1-3% (owf) of the dye is dispersed according to the step B, the DES and the water are uniformly stirred according to the volume ratio of 70-80: 30-20 and the bath ratio of 20: 1 at 40 ℃ to prepare the dye solution.
Preferably, the disperse dye according to the step B is a low-temperature type or medium-temperature type disperse dye.
Preferably, the pretreatment according to the step C is oil removal, desizing, impurity removal treatment or alkali reduction treatment, and the terylene is terylene fiber, knitted fabric, woven fabric or non-woven fabric.
Preferably, the dyed terylene is washed twice with hot water at 60 ℃ and twice with cold water according to the step D.
Compared with the prior art, the invention has the beneficial effects that:
the technical scheme provided by the invention uses choline chloride, glycerin and benzyl alcohol eutectic solvent to replace water as a dyeing medium, and uses disperse dye to dye terylene at the temperature of nearly 100 ℃, the method has the advantages of extremely low water consumption, low dyeing temperature, no need of adding dyeing auxiliaries such as dispersing agent and the like, no need of reduction cleaning, reusable dyeing medium, water and energy conservation, capability of reducing the influence of the traditional aqueous phase dyeing method on the environment, and wide application prospect.
Detailed Description
The technical solutions in the embodiments of the present invention are clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The invention provides the following technical scheme: a water-saving and energy-saving dyeing method for terylene comprises the following steps:
A. preparation of eutectic solvent: mixing choline chloride, glycerol and benzyl alcohol according to the molar ratio of 1: 1, and heating and stirring in water to obtain a eutectic solvent;
B. preparing a dye solution: dispersing dye, namely mixing DES and water according to a volume ratio and a bath ratio, and then uniformly stirring to prepare a dye solution;
C. dyeing: adding the pretreated terylene into the dye solution, heating to 98-100 ℃ at the speed of 1.5-2 ℃/min, and preserving heat for 40-60 min for dyeing;
D. and (3) dyeing post-treatment: and (3) washing the dyed terylene by hot water at 60 ℃, then washing by cold water, dehydrating and drying.
Choline chloride, glycerol and benzyl alcohol are mixed according to the mol ratio of 1: 1, and then are heated and stirred in water bath at 40 ℃ until transparent liquid is formed, and the eutectic solvent (DES) is prepared, wherein the disperse dye is 1-3% (owf), and is a low-temperature or medium-temperature disperse dye.
DES and water are evenly stirred according to the volume ratio of 70-80: 30-20, the bath ratio of 20: 1 and the temperature of 40 ℃ to prepare dye liquor, polyester fiber, knitted fabric, woven fabric and non-woven fabric which are subjected to oil removal, desizing, impurity removal treatment or alkali decrement treatment are added into the dye liquor, then the temperature is raised to 98-100 ℃ at the speed of 1.5-2 ℃/min, the temperature is kept for 40-60 min for dyeing, then the dyed polyester is washed twice by hot water at the temperature of 60 ℃, then washed twice by cold water, and dried after dehydration.
Example 1: a dyeing method of blue polyester pongee comprises the following specific steps: A. preparation of eutectic solvent (DES): respectively weighing 35g of choline chloride, 23g of glycerol and 27g of benzyl alcohol (0.25 mol of each), mixing, heating in a water bath at 40 ℃, and stirring to form transparent liquid, thus obtaining a eutectic solvent; B. preparing a dye solution: weighing 0.05g of Yatelong according to the dyeing depth of 1% (owf)
Adding blue AQE dye into 20mL of water, uniformly dispersing, adding the prepared DES 80mL, and uniformly stirring at 40 ℃ to prepare 100mL of dye solution; C. dyeing: adding 5g of polyester fabric into the dye solution, heating to 100 ℃ at the speed of 2 ℃/min, and preserving heat for 40min for dyeing; D. and (3) dyeing post-treatment: washing the dyed polyester fabric twice with hot water at 60 ℃, then washing twice with cold water, dehydrating and drying. The K/S value of the dyed fabric was found to be 3.281 and both the crockfastness and the soaping fastness reached level 5.
Example 2: a dyeing method of red polyester pongee comprises the following specific steps: A. preparation of eutectic solvent (DES): respectively weighing 35g of choline chloride, 23g of glycerol and 27g of benzyl alcohol (0.25 mol of each), mixing, heating in a water bath at 40 ℃, and stirring to form transparent liquid, thus obtaining a eutectic solvent; B. preparing a dye solution: weighing 0.15g of disperse red jade SE-GFL dye according to the dyeing depth of 3% (owf), adding the dye into 30mL of water for uniform dispersion, then adding the prepared DES 70mL, and stirring uniformly at 40 ℃ to prepare 100mL of dye solution; C. dyeing: adding 5g of polyester fabric into the dye solution, heating to 100 ℃ at the speed of 1.5 ℃/min, and preserving heat for 60min for dyeing; D. and (3) dyeing post-treatment: washing the dyed polyester fabric twice with hot water at 60 ℃, then washing twice with cold water, dehydrating and drying. The K/S value of the dyed fabric was found to be 8.764, with a crockfastness rating of 5, a soaping fastness and a rating of 4-5.
Example 3: a dyeing method of red polyester pongee comprises the following specific steps: A. preparation of eutectic solvent (DES): respectively weighing 35g of choline chloride, 23g of glycerol and 27g of benzyl alcohol (0.25 mol of each), mixing, heating and stirring in a water bath at 40 ℃ until a transparent liquid is formed, thus obtaining a eutectic solvent; B. preparing a dye solution: weighing 0.30g of disperse red jade SE-GFL dye according to the dyeing depth of 5% (owf), adding the disperse red jade SE-GFL dye into 40mL of water for uniform dispersion, then adding the prepared DES 60mL, and uniformly stirring at 40 ℃ to prepare 100mL of dye solution; C. adding 5g of polyester fabric into the dye solution, heating to 100 ℃ at the speed of 1.0 ℃/min, and preserving heat for 80min for dyeing; D. and (3) dyeing post-treatment: washing the dyed polyester fabric twice with hot water at 60 ℃, then washing twice with cold water, dehydrating and drying. The K/S value of the dyed fabric was found to be 14.247, with a crockfastness rating of 5, a soaping fastness and a rating of 3 to 4.
Example 4: a dyeing method of red polyester pongee comprises the following specific steps: A. preparation of eutectic solvent (DES): respectively weighing 35g of choline chloride, 23g of glycerol and 27g of benzyl alcohol (0.25 mol of each), mixing, heating in a water bath at 40 ℃, and stirring to form transparent liquid, thus obtaining a eutectic solvent; B. preparing a dye solution: weighing 0.45g of disperse ruby SE-GFL dye according to the dyeing depth of 7% (owf), adding the dye into 50mL of water for uniform dispersion, then adding the prepared DES 50mL, and uniformly stirring at 40 ℃ to prepare 100mL of dye solution; C. dyeing: adding 5g of polyester fabric into the dye solution, heating to 100 ℃ at the speed of 0.5 ℃/min, and preserving heat for 100min for dyeing; D. and (3) dyeing post-treatment: washing the dyed polyester fabric twice with hot water at 60 ℃, then washing twice with cold water, dehydrating and drying. The K/S value of the dyed fabric was found to be 19.73, with a crockfastness rating of 5, a soaping fastness and a rating of 2-3.
Dyeing material of blue dacron pongee
In conclusion, the technical scheme provided by the invention uses choline chloride, glycerol and benzyl alcohol eutectic solvent to replace water as a dyeing medium, and uses disperse dye to dye terylene at the temperature of nearly 100 ℃, the method has the advantages of extremely low water consumption, low dyeing temperature, no need of adding dyeing auxiliaries such as dispersing agent and the like, no need of reduction cleaning, reusability of the dyeing medium, water and energy conservation, capability of reducing the influence of the traditional water-phase dyeing method on the environment, and wide application prospect.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (1)
1. A water-saving and energy-saving dyeing method for terylene is characterized in that: the method comprises the following steps:
A. preparation of DES: respectively weighing 0.25mol of choline chloride, glycerol and benzyl alcohol, mixing, heating in a water bath at 40 ℃, and stirring to form a transparent liquid to obtain a eutectic solvent;
B. preparing a dye solution: weighing 0.05g of Yatelong according to the dyeing depth of 1% (owf) ® Adding blue AQE dye into 20mL of water for uniform dispersion, then adding the prepared DES 80mL, and uniformly stirring at 40 ℃ to prepare 100mL of dye solution;
C. dyeing: adding 5g of polyester fabric into the dye solution, heating to 100 ℃ at the speed of 2 ℃/min, and preserving heat for 40min for dyeing;
D. and (3) dyeing post-treatment: washing the dyed polyester fabric twice with hot water at 60 ℃, then washing twice with cold water, dehydrating and drying;
the K/S value of the dyed fabric is 3.281, and the rubbing fastness and the soaping fastness both reach 5 grades.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112813708B (en) * | 2021-02-20 | 2021-10-22 | 江南大学 | Salt-free less-water circulating dyeing method for cellulose textile reactive dye |
| CN113005791A (en) * | 2021-03-05 | 2021-06-22 | 鲁泰纺织股份有限公司 | On-line solvent dyeing method of disperse dye |
| CN113249984A (en) * | 2021-07-02 | 2021-08-13 | 浙江理工大学 | Deep eutectic solvent and high-energy ball milling technology-based red and yellow natural dye color matching dyeing method |
| CN114150517B (en) * | 2021-12-17 | 2024-10-01 | 广东龙湖科技股份有限公司 | Fiber dyeing method in eutectic solvent system |
| CN114293388A (en) * | 2022-01-19 | 2022-04-08 | 江南大学 | Preparation method of anhydrous acid dye solution based on acid eutectic solvent |
| IT202200001487A1 (en) * | 2022-01-28 | 2023-07-28 | Giorgio Saleri | Chemical textile fiber dyeing method |
| CN115058889A (en) * | 2022-07-05 | 2022-09-16 | 四川大学 | Hydrophilic polyester fiber and modification method |
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